simplicity's sake I can't mail out any more than I've already received (as
of 16:30 EDT, Tuesday).  Maybe it'll pop up on a site sooner or later.
==============================================================================
Hugh Johnson (johnsh@rpi.edu)    |
Rensselaer Polytechnic Institute |            Welcome to Macintosh.
Troy, New York, USA              |
==============================================================================
From: george@ccmail.larc.nasa.gov (George M. Brown)
Subject: QC/MSC code to view/save images
Organization: Client Specific Systems, Inc.
Lines: 12
NNTP-Posting-Host: thrasher.larc.nasa.gov
Dear Binary Newsers,
I am looking for Quick C or Microsoft C code for image decoding from file for
VGA viewing and saving images from/to GIF, TIFF, PCX, or JPEG format. I have
scoured the Internet, but its like trying to find a Dr. Seuss spell checker
TSR. It must be out there, and there's no need to reinvent the wheel.
Thanx in advance.
//////////////
The Internet is like a Black Hole....
Subject: AutoCAD -> TIFF Can it be done????
From: cvadrmaz@vmsb.is.csupomona.edu
Organization: California State Polytechnic University, Pomona
Nntp-Posting-Host: acvax2
Nntp-Posting-User: cvadrmaz
Lines: 9
Hello, I realize that this might be a FAQ but I have to ask since I don't get a
change to read this newsgroup very often.  Anyways for my senior project I need
to convert an AutoCad file to a TIFF file.  Please I don't need anyone telling
me that the AutoCAD file is a vector file and the TIFF is a bit map since I
have heard that about 100 times already I would just like to know if anyone
knows how to do this or at least point me to the right direction.
Any help greatly appreciated,
Matt Georgy
From: amjad@eng.umd.edu (Amjad A Soomro)
Subject: Gamma-Law Correction
Organization: Project GLUE, University of Maryland, College Park
Lines: 22
Distribution: USA
Expires: 05/15/93
NNTP-Posting-Host: filter.eng.umd.edu
Hi:
I am digitizing a NTSC signal and displaying on a PC video monitor.
It is known that the display response of tubes is non-linear and is
sometimes said to follow Gamma-Law. I am not certain if these
non-linearities are "Gamma-corrected" before encoding NTSC signals
or if the TV display is supposed to correct this.
Also, if  256 grey levels, for example, are coded in a C program do
these intensity levels appear with linear brightness on a PC
monitor? In other words does PC monitor display circuitry
correct for "gamma errrors"?
Your response is much appreciated.
Amjad.
Amjad Soomro
CCS, Computer Science Center
U. of Maryland at College Park
email: amjad@wam.umd.edu
From: mlee@eng.sdsu.edu (Mike Lee)
Subject: MPEG for x-windows MONO needed.
Organization: San Diego State University Computing Services
Lines: 4
NNTP-Posting-Host: eng.sdsu.edu
X-Newsreader: TIN [version 1.1 PL9]
Hello, and thank you for reading this request.  I have a Mpeg viewer for x-windows and it did not run because I was running it on a monochrome monitor.  I need the mono-driver for mpeg_play.
Please post the location of the file or better yet, e-mail me at mlee@eng.sdsu.edu.
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: thining algorithm
Organization: Purdue University
Lines: 15
In article <1q7615INNmi@shelley.u.washington.edu> kshin@stein.u.washington.edu
(Kevin Shin) writes:
> I am trying obtain program to preprocess handwriting characters.
> Like thining algorithm, graph alogrithm.
> Do anyone know where I can obtain those?
I usually use "Algorithms for graphics and image processing" by
Theodosios Pavlidis, but other people here got them same idea and now
3 of 4 copies in the libraries have been stolen!
Another reference is "Digital Image Processing" by Gonzalez and
Wintz/Wood, which is widely available but a little expensive ($55
here- I just checked today).
ab
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: TIFF: philosophical significance of 42
Organization: Purdue University
Lines: 20
In article <1993Apr10.160929.696@galki.toppoint.de> ulrich@galki.toppoint.de
writes:
> According to the TIFF 5.0 Specification, the TIFF "version number"
> (bytes 2-3) 42 has been chosen for its "deep philosophical
> significance".
> Last week, I read the Hitchhikers Guide To The Galaxy,
> Is this actually how they picked the number 42?
I'm sure it is, and I am not amused.  Every time I read that part of the
TIFF spec, it infuriates me- and I'm none too happy about the
complexity of the spec anyway- because I think their "arbitrary but
carefully chosen number" is neither.  Additionally, I find their
choice of 4 bytes to begin a file with meaningless of themselves- why
not just use the letters "TIFF"?
(And no, I don't think they should have bothered to support both word
orders either- and I've found that many TIFF readers actually
don't.)
ab
From: rob@rjck.UUCP (Robert J.C. Kyanko)
Subject: Re: VGA 640x400 graphics mode
Distribution: world
Organization: Neptune Software Inc
Lines: 15
gchen@essex.ecn.uoknor.edu writes in article <C55DoH.2AI@constellation.ecn.uoknor.edu>:
>
> Greetings!
>
> Does anybody know if it is possible to set VGA graphics mode to 640x400
> instead of 640x480?  Any info is appreciated!
Some VESA bios's support this mode (0x100).  And *any* VGA should be able to
support this (640x480 by 256 colors) since it only requires 256,000 bytes.
My 8514/a VESA TSR supports this; it's the only VESA mode by card can support
due to 8514/a restrictions. (A WD/Paradise)
--
I am not responsible for anything I do or say -- I'm just an opinion.
Robert J.C. Kyanko (rob@rjck.UUCP)
From: rob@rjck.UUCP (Robert J.C. Kyanko)
Subject: Re: Weitek P9000 ?
Distribution: world
Organization: Neptune Software Inc
Lines: 23
abraxis@iastate.edu writes in article <abraxis.734340159@class1.iastate.edu>:
>
> Anyone know about the Weitek P9000 graphics chip?
> Micron is selling it with their systems They rank them at 50 winmarks...
> Any info would help...
> thanks.
It's supposedly a high-performance chip based upon workstation graphics
accelerators.  It's quite fast (I have 7), but as usual with new boards/chips
the drivers are buggy for Windows.  As far as Winmarks go, it depends upon
the version.  I think I got 42M winmarks with version 3.11.  2.5 yielded the
50+ number.  I've also benchmarked this with Wintach at over 65 (from memory
as well).
As far as the low-level stuff goes, it looks pretty nice.  It's got this
quadrilateral fill command that requires just the four points.
It's very fast, but beware of buggy drivers, and otherwise no non-windows
support.
--
I am not responsible for anything I do or say -- I'm just an opinion.
Robert J.C. Kyanko (rob@rjck.UUCP)
From: lewism@aix.rpi.edu (Michael C. Lewis)
Subject: Re: Delaunay Triangulation
Nntp-Posting-Host: aix.rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy, NY
Lines: 16
In article <lsk1v9INN93c@caspian.usc.edu> zyeh@caspian.usc.edu (zhenghao yeh) writes:
>
>Does anybody know what Delaunay Triangulation is?
>Is there any reference to it?
>Is it useful for creating 3-D objects? If yes, what's the advantage?
It is used to create a TIN (triangulated irregular network), which is
basically a bunch of triangles which form a surface over a group of
points.  What is special about it is that the triangles formed are the
most equalateral possible.  Check out "Proceedings of AutoCarto N" where
N is 8..10.  Sorry, I don't have a specific reference describing the
process.
-Michael
From: rubery@saturn.aitc.rest.tasc.com. (Dan Rubery)
Subject: Graphic Formats
Organization: TASC
Lines: 7
NNTP-Posting-Host: saturn.aitc.rest.tasc.com
I am writing some utilies to convert Regis and Tektonic esacpe sequences
into some useful formats. I would rather not have to goto a bitmap format.
I can convert them to Window Meta FIles easily enough, but I would rather
convert them to Corel Draw, .CDR, or MS Power Point, .PPT, files.
Microsoft would not give me the format. I was wondering if anybody out
there knows the formats for these two applications.
From: aad@scr.siemens.com (Anthony A. Datri)
Subject: Re: Nice gif code
Nntp-Posting-Host: lovecraft.siemens.com
Organization: Siemens Weyland-Yutani
Lines: 7
>There is a thing called xgif
xgif is the grandfather of XV.
--
======================================================================8--<
From: fischer@iesd.auc.dk (Lars Peter Fischer)
Subject: Re: Rumours about 3DO ???
In-Reply-To: archer@elysium.esd.sgi.com's message of 6 Apr 93 18:18:30 GMT
Organization: Mathematics and Computer Science, Aalborg University
<C51Eyz.4Ix@optimla.aimla.com> <1993Apr6.144520.2190@unocal.com>
<h48vtis@zola.esd.sgi.com>
Lines: 11
>>>>> "Archer" == Archer (Bad Cop) Surly (archer@elysium.esd.sgi.com)
Archer> How about "Interactive Sex with Madonna"?
or "Sexium" for short.
/Lars
--
Lars Fischer, fischer@iesd.auc.dk | It takes an uncommon mind to think of
CS Dept., Aalborg Univ., DENMARK. | these things.  -- Calvin
From: crash@ckctpa.UUCP (Frank "Crash" Edwards)
Subject: Re: forms for curses
Reply-To: crash%ckctpa@myrddin.sybus.com (Frank "Crash" Edwards)
Organization: Edwards & Edwards Consulting
Lines: 40
Note the Followup-To: header ...
steelem@rintintin.Colorado.EDU (STEELE MARK A) writes:
>Is there a collection of forms routines that can be used with curses?
>If so where is it located?
On my SVR4 Amiga Unix box, I've got -lform, -lmenu, and -lpanel for
use with the curses library.  Guess what they provide? :-)
Unix Press, ie. Prentice-Hall, has a programmer's guide for these
tools, referred to as the FMLI (Forms Mgmt Language Interface) and
ETI (Extended Terminal Interface), now in it's 2nd edition.  It is
ISBN 0-13-020637-7.
Paraphrased from the outside back cover:
FMLI is a high-level programming tool for creating menus, forms,
and text frames.  ETI is a set of screen management library
subroutines that promote fast development of application programs
for window, panel, menu, and form manipulation.
The FMLI is a shell package which reads ascii text files and produces
screen displays for data entry and presentation.  It consists of a
"shell-like" environment of the "fmli" program and it's database
files.  It is section 1F in the Unix Press manual.
The ETI are subroutines, part of the 3X manual section, provide
support for a multi-window capability on an ordinary ascii terminal
with controls built on top of the curses library.
>Thanks
>-Mark Steele
>steelem@rintintin.colorado.edu
--
Frank "Crash" Edwards          Edwards & Edwards Consulting
Voice: 813/786-3675            crash%ckctpa@myrddin.sybus.com, but please
Data:  813/787-3675            don't ask UUNET to route it -- it's sloooow.
There will be times in life when everyone you meet smiles and pats you on
the back and tells you how great you are ... so hold on to your wallet.
From: millernw@craft.camp.clarkson.edu (Neal Miller)
Subject: Re: Trying to view POV files.....
Nntp-Posting-Host: craft.clarkson.edu
Organization: Clarkson University
Lines: 31
merkelbd@sage.cc.purdue.edu (Brian Merkel) writes:
>In article <1993Apr11.132604.13400@ornl.gov> ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles) writes:
>>
>>I've been trying to view .tga files created in POVRAY.  I have the Diamond
>>SpeedStar 24 Video board (not the _24X_).  So far I can convert them to
>>jpeg using cjpeg and view them with CVIEW but that only displays 8 bit color.
>>
>>I'm looking for some way to convert and/or view them in 24 bit.
>>
>>I have UNIVESA (uvesa31.zip) and the DVPEG viewer but I don't get anything.
>>Perhaps I am not setting up UNIVESA properly?  If anyone has ideas about this
>>please feel free to enlighten me...
>>
>>Just want to see the darn things in real color...
>Image Alchemy (aka alchemy) will view the TGA files that POV outputs
> and just about any other format you can think of. It will also convert
> between all these. It's shareware, so it's probably available by FTP
> somwhere out there in netland...
Yep... Alchemy works fine on my Tseng400+DAC, but I think I remember
reading that it only displays in 15-bit or so.  Of course, that's still 32K
colors which is nothing to sneeze at.  Use the --v flag.
--
-----------------------------------------------------------------------------
Neal Miller         | "Why not go mad?"  | millernw@craft.camp.clarkson.edu
Clarkson University |     - Ford Prefect |     dark@craft.camp.clarkson.edu
-----------------------------------------------------------------------------
From: trb3@Ra.MsState.Edu (Tony R. Boutwell)
Subject: HOT NEW 3D Software
Keywords: Imagine,3d
Nntp-Posting-Host: ra.msstate.edu
Organization: Mississippi State University
Lines: 20
There is a new product for the (IBM'ers) out there... it is called
IMAGINE and it just started shipping yesterday... I can personally attest that it will blow the doors off of 3D-Studio.  It is made by IMPUlSE, and is in its
3rd version....(1st) for the IBM.... it can do morphing, your standard key-framming animation, it is a raytracer (reflections & shadows), and can do/apply special FX to objects... (like ripple, explode, bounce) things of that nature.  Also it has algorithmic texture maps....and your standard brushmapping also...
you can have animated brushmaps...(ie. live video mapped on the objs)...
also animated backdrops (ie. live video backgrounds)
also animted reflections maps....
you get the idea.... it will run for about 500$ retail (I think)...
dont let the low price fool you.... this product can do it all when it
comes to 3D-animation and Renderering...!
also....does anyone here know how to get in the Imagine mailing list??
please e-mail me if you do or post up here....
oh...the number for IMPULSE is --->1 800 328 0184
trb3@ra.msstate.edu
From: mbc@po.CWRU.Edu (Michael B. Comet)
Subject: Re: HOT NEW 3D Software
Organization: Case Western Reserve University, Cleveland, OH (USA)
Lines: 34
Reply-To: mbc@po.CWRU.Edu (Michael B. Comet)
NNTP-Posting-Host: thor.ins.cwru.edu
In a previous article, trb3@Ra.MsState.Edu (Tony R. Boutwell) says:
>There is a new product for the (IBM'ers) out there... it is called
>IMAGINE and it just started shipping yesterday... I can personally attest that it will blow the doors off of 3D-Studio.  It is made by IMPUlSE, and is in its
>
Well....I don't know about its competing with 3D studio, but
it's pretty powerful allright.
>
>also....does anyone here know how to get in the Imagine mailing list??
>please e-mail me if you do or post up here....
>
Yes, send e-mail to:
imagine-request@email.sp.paramax.com
With a header of something like subscribe.
I actually work on the FAQ (frequently asked questions).  We
should have the new version out of it by next week, but if you want, I
could e-mail you the previous one.  It details what the list is etc...
as well as answering basic questions about Imagine.
Hope this helps!
--
+======================================================================+
|  Michael B. Comet -   Software Engineer / Graphics Artist  - CWRU    |
|  mbc@po.CWRU.Edu  - "Silence those who oppose the freedom of speech" |
+======================================================================+
From: dutc0006@student.tc.umn.edu (David J Dutcher-1)
Subject: Re: VGA 640x400 graphics mode
Nntp-Posting-Host: student.tc.umn.edu
Organization: University of Minnesota
Lines: 23
In article <734553308snx@rjck.UUCP> rob@rjck.UUCP (Robert J.C. Kyanko) writes:
>gchen@essex.ecn.uoknor.edu writes in article <C55DoH.2AI@constellation.ecn.uoknor.edu>:
>>
>> Greetings!
>>
>> Does anybody know if it is possible to set VGA graphics mode to 640x400
>> instead of 640x480?  Any info is appreciated!
>
>Some VESA bios's support this mode (0x100).  And *any* VGA should be able to
>support this (640x480 by 256 colors) since it only requires 256,000 bytes.
>My 8514/a VESA TSR supports this; it's the only VESA mode by card can support
>due to 8514/a restrictions. (A WD/Paradise)
>
>--
>I am not responsible for anything I do or say -- I'm just an opinion.
>             Robert J.C. Kyanko (rob@rjck.UUCP)
Ahh no.  Possibly you punched in the wrong numbers on your
calculator.  256 color modes take a byte per pixel so 640 time 480 is
307,200 which is 300k to be exact.  640x400x256 only takes 250k but I
don't think it is a BIOS mode.  I wouldn't bet that all VGA cards can do
that either.  If a VGA card has 512k I bet it can do both 640x400 and
640x480.  That by definition is SVGA, though not very high SVGA.
From: pvconway@cudnvr.denver.colorado.edu
Subject: TIN files & coutours
Lines: 15
Hi!
I am working on a project that needs to create contour lines
from random data points.  The work that I have done so far tells me that I
need to look into Triangulated Irregular Networks (TIN), the Delauney
criiterion, and the Krige method.  Does anyone have any suggestions for
references, programs and hopefully source code for creating contours.  Any
help with this or any surface modeling would be greatly appreciated.
I can be reached at the addresses below:
-- Paul Conway
PVCONWAY@COPPER.DENVER.COLORADO.EDU
PVCONWAY@CUDNVR.DENVER.COLORADO.EDU
From: mccool@dgp.toronto.edu (Michael McCool)
Subject: Apr 20 Toronto Siggraph Event
Organization: University of Toronto Dynamic Graphics Project
Distribution: na
Lines: 48
Toronto Siggraph
================
What: ``Chance's Art'': 2D Graphics and Animation on the Indigo.
By:    Ken Evans, Imagicians Artware, Inc.
When:  Tuesday 20 April 1993 7:00pm-9:00pm
Where: The McLuhan Centre for Culture and Technology
University of Toronto
39A Queen's Park Crescent
Toronto
Who:   Members and non-members alike
(non-members encouraged to become members...)
Abstract:
Imagicians Artware, Inc. is entering into early beta site testing on Silicon
Graphics workstations of a new 2D abstract artwork and animation package called
Chance's Art.  The package will be described and demonstrated, and some of the
technical issues will be discussed.  Marketing plans will be outlined.  The
talk will also present some of the technical and business problems increasingly
confronting small startup software companies today, and some of the
opportunities this situation presents.
Time after the event will be allocated for hands-on demonstrations to
interested parties.  Silicon Graphics is graciously providing an Indigo for
this event.  Myck Kupka will also be demonstrating his computerized interactive
reflective stereoscope, which is installed upstairs in the McLuhan Centre, so
feel free to drop by for a demonstration before or after the event. BTW, be
sure to sing "Happy Birthday, Myck"...
The names of nominees for our Siggraph executive offices will be announced at
this meeting.  Nominations will still be open until the election at our
May 18th event; call Myck Kupka at 465-0943 or fax to 465-0729.
Directions: The McLuhan Coachhouse is on the east side of Queen's Park
Crescent, just NORTH of Wellesley, SOUTH of St. Joseph St., BEHIND (EAST of)
39 Queen's Park Crescent, which is the centre for Mediaeval Studies.
For information on Toronto Siggraph membership, contact Michael McCool via:
Internet: mccool@dgp.utoronto.ca;
Voice: 652-8072/978-6619/978-6027;
Fax: 653-1654
From: Dave Watson <watson@maths.uwa.edu.au>
Subject: Re: Delaunay Triangulation
Organization: The University of Western Australia
Lines: 29
Distribution: world
Reply-To: watson@maths.uwa.edu.au
NNTP-Posting-Host: madvax.maths.uwa.oz.au
zyeh@caspian.usc.edu (zhenghao yeh) writes:
>Does anybody know what Delaunay Triangulation is?
>Is there any reference to it?
The Delaunay triangulation is the geometrical dual of the
Voronoi tessellation and both constructions are derived from
natural neighbor order.
Aurenhammer, F., 1991, Voronoi Diagrams - A Survey of a
Fundamental Geometric Data Structure:
ACM Computing Surveys, 23(3), p. 345-405.
Okabe, A., Boots, B., and Sugihara, K., 1992, Spatial
tessellations : concepts and applications of Voronoi diagrams:
Wiley & Sons, New York, ISBN 0 471 93430 5, 532p.
Watson, D.F., 1981, Computing the n-dimensional Delaunay
tessellation with application to Voronoi polytopes:
The Computer J., 24(2), p. 167-172.}
Watson, D.F., 1985, Natural neighbour sorting: The Australian
Computer J., 17(4), p. 189-193.
--
Dave Watson                          Internet: watson@maths.uwa.edu.au
Department of Mathematics
The University of Western Australia               Tel: (61 9) 380 3359
Nedlands, WA 6009  Australia.                     FAX: (61 9) 380 1028
From: hrs1@cbnewsi.cb.att.com (herman.r.silbiger)
Subject: ANSI/AIIM MS-53 Standard Image File Format
Organization: AT&T
Keywords: image, file format
Lines: 6
wing the suggestion of Stu Lynne, I have posted the Image File Format executable and source code to alt.sources.
Herman Silbiger
.
From: ccraig@nmt.edu (Catherine Craig)
Subject: Re: Trying to view POV files.....
Organization: New Mexico Tech
Lines: 23
In article <1993Apr11.132604.13400@ornl.gov> ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles) writes:
>
>I've been trying to view .tga files created in POVRAY.  I have the Diamond
>SpeedStar 24 Video board (not the _24X_).  So far I can convert them to
>jpeg using cjpeg and view them with CVIEW but that only displays 8 bit color.
>
>I'm looking for some way to convert and/or view them in 24 bit.
>
>
>Just want to see the darn things in real color...
>
>Thanks,
>
>Jim Nobles
>
The best program I've seen for viewing such files is VPIC.  You'll want version 5.9 or later.  (6.0x is current.)  It allows you to view in 15 and 24 bit modes.  It really is QUITE nice.
Now, for a return question:  Do you run Windows?  If so, what are the dates on your drivers?  The newest ones *I* can find are from around 4-??-92!!  My problem is they conflict with Star Trek: After Dark, and other things as well.  I'm willing to bet that it's the drivers, and NOT the programs.  Anyone out there have info on newer SS24 (NOT X) drivers for windows or OS/2?
Thanks,
Justin
From: graeme@labtam.labtam.oz.au (Graeme Gill)
Subject: Re: looking for circle algorithm faster than Bresenhams
Organization: Labtam Australia Pty. Ltd., Melbourne, Australia
Lines: 28
In article <1993Apr13.025240.8884@nwnexus.WA.COM>, mpdillon@halcyon.com (Michael Dillon) writes:
> I have an algorithm similar to Bresenhams line drawing algorithm, that
> draws a line by stepping along the minor axis and drawing slices like
> AAAA, BBBB, CCCC in the following diagram.
>
>      AAAA
>          BBBB
>              CCCC
>
Yes, that's known as "Bresenhams Run Length Slice Algorithm for
Incremental lines". See Fundamental Algorithms for Computer Graphics,
Springer-Verlag, Berlin Heidelberg 1985.
> I have tried to extrapolate this to circles but I can't figure out
> how to determine the length of the slices. Any ideas?
Hmm. I don't think I can help you with this, but you might
take a look at the following:
"Double-Step Incremental Generation of Lines and Circles",
X. Wu and J. G. Rokne, Computer Graphics and Image processing,
Vol 37, No. 4, Mar. 1987, pp. 331-334
"Double-Step Generation of Ellipses", X. Wu and J. G. Rokne,
IEEE Computer Graphics & Applications, May 1989, pp. 56-69
Graeme Gill.
Subject: E-mail of Michael Abrash?
From: gmontem@eis.calstate.edu (George A. Montemayor)
Organization: Calif State Univ/Electronic Information Services
Lines: 0
From: g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad)
Subject: Fonts in POV??
Organization: University of Wollongong, NSW, Australia.
Lines: 11
NNTP-Posting-Host: wampyr.cc.uow.edu.au
Keywords: fonts, raytrace
I have seen several ray-traced scenes (from MTV or was it
RayShade??) with stroked fonts appearing as objects in the image.
The fonts/chars had color, depth and even textures associated with
them.  Now I was wondering, is it possible to do the same in POV??
Thanks,
Noel
From: lm001@rrz.Uni-Koeln.DE (Erwin H. Keeve)
Subject: Polygon Reduction for Marching Cubes
Organization: Regional Computing Center, University of Cologne
Lines: 36
Distribution: world
NNTP-Posting-Host: rs1.rrz.uni-koeln.de
Keywords: Polygon Reduction, Marching Cubes, Surfaces, Midical Visualisation
Dear Reader,
I'am searching for an implementation of a polygon reduction algorithm
for marching cubes surfaces. I think the best one is the reduction algorithm
from Schroeder et al., SIGGRAPH '92. So, is there any implementation of this
algorithm, it would be very nice if you could leave it to me.
Also I'am looking for a fast !!! connectivity
test for marching cubes surfaces.
Any help or hints will be very useful.
Thanks a lot
,,,
(o o)
___________________________________________oOO__(-)__OOo_____________
|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|_|
|_|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|
|                               |                                     |
| Erwin Keeve                   | adress:  Peter-Welter-Platz 2       |
|                               |          W-5000 Cologne 1, Germany  |
|                               |                                     |
| Dept. of Computergraphics &   | phone:   +49-221-20189-132 (-192)   |
|          Computeranimation    | FAX:     +49-221-20189-17           |
|                               |                                     |
| Academy of Media Arts Cologne | Email:   keeve@khm.uni-koeln.de     |
|_______________________________|_____________________________________|
From: stefan@lis.e-technik.tu-muenchen.de (Stefan Eckart)
Subject: dmpeg10.zip info: Another DOS MPEG decoder/player posted
Keywords: MPEG, DOS
Reply-To: stefan@lis.e-technik.tu-muenchen.de
Organization: Technische Universitaet Muenchen, Germany
Lines: 74
I have posted a DOS MPEG decoder/player to alt.binaries.pictures.utilities.
Here is a short description and some technical information, taken from the
accompanying documentation:
DMPEG V1.0
Public Domain MPEG decoder
by Stefan Eckart
0. Features
===========
DMPEG/DMPLAY is another MPEG decoder/player for the PC:
- decodes (nearly) the full MPEG video standard
(I,P,B frames, frame size up to at least 352x240 supported)
- saves decoded sequence in 8 or 24bit raw file for later display
- optional on-screen display during decoding (requires VGA)
- several dithering options: ordered dither, Floyd-Steinberg, grayscale
- color-space selection
- runs under DOS, 640KB RAM, no MS-Windows required
- very compact (small code / small data models, 16 bit arithmetic)
- real time display of the raw file by a separate player for
VGA and many Super-VGAs
...
4. Technical information
========================
The player is a rather straightforward implementation of the MPEG spec [1].
The IDCT is based on the Chen-Wang 13 multiplication algorithm [2]
(not quite the optimum, I know). Blocks with not more than eight non-zero
coefficients use a non-separated direct multiply-accumulate 2D-IDCT
(sounds great, doesn't it?), which turned out to be faster than a 'fast'
algorithm in this (quite common) case. Dithering is pretty standard. Main
difference to the Berkeley decoder (except for the fewer number of supported
algorithms) is the use of 256 instead of 128 colors, the (default) option to
use a restricted color-space and the implementation of a color saturation
dominant ordered dither. This leads to a significantly superior quality of
the dithered image (I claim, judge yourself).
Restricted color-space means that the U and V components are clipped to
+/-0.25 (instead of +/-0.5) and the display color-space points are distributed
over this restricted space. Since the distance between color-space points
is thus reduced by a factor of two, the color resolution is doubled at the
expense of not being able to represent fully saturated colors.
Saturation dominant ordered dither is a method by which a color, lying
somewhere between the points of the display color space, is approximated
by primarily alternating between two points of constant hue instead of
constant saturation. This yields subjectivly better quality due to the
lower sensitivity of the human viewing system to saturation changes than
to hue changes (the same reasoning as used by the PAL TV standard to improve
on NTSC). The improvement is particularly visible in dark brown or redish
areas.
...
--
Stefan Eckart, stefan@lis.e-technik.tu-muenchen.de
From: scrowe@hemel.bull.co.uk (Simon Crowe)
Subject: Point within a polygon
Summary: Algorithm to find if a point is bound by a polygon
Keywords: point, polygon
Nntp-Posting-Host: bogart
Organization: Bull HN UK
Lines: 7
I am looking for an algorithm to determine if a given point is bound by a
polygon. Does anyone have any such code or a reference to book containing
information on the subject ?
Regards
Simon
From: john@goshawk.mcc.ac.uk (John Heaton)
Subject: POV reboots PC after memory upgrade
Reply-To: john@nessie.mcc.ac.uk
Organization: MCC Network Unit
Lines: 13
Up until last week, I have been running POVray v1.0 on my 486/33 under DOS5
without any major problems.  Over Easter I increased the memory from 4Meg to
8Meg, and found that POVray reboots the system every time under DOS5.  I had
a go at running POVray in a DOS window when running Win3.1 on the same system
and it now works fine, even if a lot slower.  I would like to go back to
using POVray directly under DOS, anyone any ideas???
John
--
John Heaton   -   NRS Central Administrator
MCC Network Unit, The University, Oxford Road, Manchester,  M13-9PL
Phone: (+44) 61 275 6011   -   FAX: (+44) 61 275 6040
Packet: G1YYH @ G1YYH.GB7PWY.#16.GBR.EU
From: af774@cleveland.Freenet.Edu (Chad Cipiti)
Subject: Good shareware paint and/or animation software for SGI?
Organization: Case Western Reserve University, Cleveland, OH (USA)
Lines: 15
Reply-To: af774@cleveland.Freenet.Edu (Chad Cipiti)
NNTP-Posting-Host: hela.ins.cwru.edu
Does anyone know of any good shareware animation or paint software for an SGI
machine?  I've exhausted everyplace on the net I can find and still don't hava
a nice piece of software.
Thanks alot!
Chad
--
Knock, knock.                                         Chad Cipiti
Who's there?                                    af774@cleveland.freenet.edu
cipiti@bobcat.ent.ohiou.edu
It might be Heisenberg.                          chad@voxel.zool.ohiou.edu
From: hendrix@oasys.dt.navy.mil (Dane Hendrix)
Subject: Processing of stereo images
Reply-To: hendrix@oasys.dt.navy.mil (Dane Hendrix)
Organization: Code 1542, DTMB, Bethesda, MD
Lines: 16
I'm interested in find out what is involved in processing pairs of
stereo photographs.  I have black-and-white photos and would like
to obtain surface contours.
I'd prefer to do the processing on an SGI, but would be interested
in hearing what software/hardware is used for this type of
image processing.
Please email and/or post to comp.sys.sgi.graphics your responses.
Thanks,
Dane Hendrix                              | email: dane@wizard.dt.navy.mil
DTMB (a.k.a. Headquarters, Carderock Div.,|  or hendrix@oasys.dt.navy.mil
Naval Surface Warfare Center)             |  or hendrix@nas.nasa.gov
Code 1542, Bethesda, MD 20084-5000        | phone: (301)227-1340
From: jgreen@amber (Joe Green)
Subject: Re: Weitek P9000 ?
Organization: Harris Computer Systems Division
Lines: 14
Distribution: world
NNTP-Posting-Host: amber.ssd.csd.harris.com
X-Newsreader: TIN [version 1.1 PL9]
Robert J.C. Kyanko (rob@rjck.UUCP) wrote:
> abraxis@iastate.edu writes in article <abraxis.734340159@class1.iastate.edu>:
> > Anyone know about the Weitek P9000 graphics chip?
> As far as the low-level stuff goes, it looks pretty nice.  It's got this
> quadrilateral fill command that requires just the four points.
Do you have Weitek's address/phone number?  I'd like to get some information
about this chip.
--
Joe Green				Harris Corporation
jgreen@csd.harris.com			Computer Systems Division
"The only thing that really scares me is a person with no sense of humor."
-- Jonathan Winters
From: kreyling@lds.loral.com (Ed Kreyling 6966)
Subject: Sun-os and 8bit ASCII graphics
Organization: Loral Data Systems
Distribution: comp.graphics
Lines: 7
I would like to know if anyone has had any luck using the upper 128 ASCII
characters on a Sun station.  I am trying to convert a fortran program to run
on a Sun.  When we write character buffers to the Sun which contain char(218)
or char(196) or char(197) etc.  We get characters on the screen but they are
not the characters in the standard ASCII tables.
Any ideas or help will be appreciated.
From: clipper@mccarthy.csd.uwo.ca (Khun Yee Fung)
Subject: Re: looking for circle algorithm faster than Bresenhams
Organization: Department of Computer Science, The University of Western
Ontario, London, Ontario, Canada
In-Reply-To: graeme@labtam.labtam.oz.au's message of Wed, 14 Apr 1993 04:49:46 GMT
<1993Apr13.025240.8884@nwnexus.WA.COM>
<1993Apr14.044946.12144@labtam.labtam.oz.au>
Nntp-Posting-Host: mccarthy.csd.uwo.ca
Lines: 41
>>>>> On Wed, 14 Apr 1993 04:49:46 GMT, graeme@labtam.labtam.oz.au (Graeme Gill) said:
Graeme> 	Yes, that's known as "Bresenhams Run Length Slice Algorithm for
Graeme> Incremental lines". See Fundamental Algorithms for Computer Graphics,
Graeme> Springer-Verlag, Berlin Heidelberg 1985.
> I have tried to extrapolate this to circles but I can't figure out
> how to determine the length of the slices. Any ideas?
Graeme> 	Hmm. I don't think I can help you with this, but you might
Graeme> take a look at the following:
Graeme> 	"Double-Step Incremental Generation of Lines and Circles",
Graeme> X. Wu and J. G. Rokne, Computer Graphics and Image processing,
Graeme> Vol 37, No. 4, Mar. 1987, pp. 331-334
Graeme> 	"Double-Step Generation of Ellipses", X. Wu and J. G. Rokne,
Graeme> IEEE Computer Graphics & Applications, May 1989, pp. 56-69
Another paper you might want to consider is:
@article{fungdraw,
title="A Run-Length Slice Line Drawing Algorithm without Division Operations",
author="Khun Yee Fung and Tina M. Nicholl and A. K. Dewdney",
journal="Computer Graphics Forum",
year=1992,
volume=11,
number=3,
pages="C-267--C-277"
}
Khun Yee
--
Khun Yee Fung    clipper@csd.uwo.ca
Department of Computer Science
Middlesex College
University of Western Ontario
London, Ontario
Canada N6A 5B7
Tel: (519) 661-6889
Fax: (519) 661-3515
From: msc_wdqn@jhunix.hcf.jhu.edu (Daniel Q Naiman)
Subject: Geometry package
Organization: Homewood Academic Computing, Johns Hopkins University, Baltimore, Md, USA
Lines: 11
Distribution: world
NNTP-Posting-Host: jhunix.hcf.jhu.edu
I am looking for a package which takes as inputs a set
of geometric objects defined by unions of convex polytopes
specified in some manner, say by inequalities and equalities,
and determines in some reasonable form things like
intersections, unions, etc. etc..
Does anyone know where I can find such a thing?
Dan Naiman
Department of Mathematical Sciences
Johns Hopkins University
From: spl@ivem.ucsd.edu (Steve Lamont)
Subject: Re: Point within a polygon
Organization: University of Calif., San Diego/Microscopy and Imaging Resource
Lines: 15
NNTP-Posting-Host: ivem.ucsd.edu
Keywords: point, polygon
In article <1993Apr14.102007.20664@uk03.bull.co.uk> scrowe@hemel.bull.co.uk (Simon Crowe) writes:
>I am looking for an algorithm to determine if a given point is bound by a
>polygon. Does anyone have any such code or a reference to book containing
>information on the subject ?
See the article "An Efficient Ray-Polygon Intersection," p. 390 in
Graphics Gems (ISBN 0-12-286165-5).  The second step, intersecting the
polygon, does what you want.  There is sample code in the book.
spl
--
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@szechuan.ucsd.edu
San Diego Microscopy and Imaging Resource/UC San Diego/La Jolla, CA 92093-0608
"They are not Bolsheviks,
just bullshitviks."  - Yevgeny Yevtechenko, "Again a meeting..."
From: ferdinan@oeinck.waterland.wlink.nl (Ferdinand Oeinck)
Subject: Re: Distance between two Bezier curves
Organization: My own node in Groningen, NL.
Lines: 14
pes@hutcs.cs.hut.fi (Pekka Siltanen) writes:
> Suppose two cubic Bezier curves (control points V1,..,V4 and W1,..,W4)
> which have equal first and last control points (V1 = W1, V4 = W4). How do I
> get upper bound for distance between these curves.
Which distance? The distance between one point (t = ti) on the first curve
and a point on the other curve with same parameter (u = ti)?
>
> Any references appreciated. Thanks in anvance.
>
> Pekka Siltanen
From: jonas-y@isy.liu.se (Jonas Yngvesson)
Subject: Re: Point within a polygon
Keywords: point, polygon
Organization: Dept of EE, University of Linkoping
Lines: 129
scrowe@hemel.bull.co.uk (Simon Crowe) writes:
>I am looking for an algorithm to determine if a given point is bound by a
>polygon. Does anyone have any such code or a reference to book containing
>information on the subject ?
Well, it's been a while since this was discussed so i take the liberty of
reprinting (without permission, so sue me) Eric Haines reprint of the very
interesting discussion of this topic...
/Jonas
O /         \ O
------------------------- X snip snip X ------------------------------
O \         / O
"Give a man a fish, and he'll eat one day.
Give a man a fishing rod, and he'll laze around fishing and never do anything."
With that in mind, I reprint (without permission, so sue me) relevant
information posted some years ago on this very problem.  Note the early use of
PostScript technology, predating many of this year's papers listed in the
April 1st SIGGRAPH Program Announcement posted here a few days ago.
-- Eric
Intersection Between a Line and a Polygon (UNDECIDABLE??),
by Dave Baraff, Tom Duff
From: deb@charisma.graphics.cornell.edu
Newsgroups: comp.graphics
Keywords: P, NP, Jordan curve separation, Ursyhon Metrization Theorem
Organization: Program of Computer Graphics
In article [...] ncsmith@ndsuvax.UUCP (Timothy Lyle Smith) writes:
>
>  I need to find a formula/algorithm to determine if a line intersects
>  a polygon.  I would prefer a method that would do this in as little
>  time as possible.  I need this for use in a forward raytracing
>  program.
I think that this is a very difficult problem.  To start with, lines and
polygons are semi-algebraic sets which both contain uncountable number of
points.  Here are a few off-the-cuff ideas.
First, we need to check if the line and the polygon are separated.  Now, the
Jordan curve separation theorem says that the polygon divides the plane into
exactly two open (and thus non-compact) regions.  Thus, the line lies
completely inside the polygon, the line lies completely outside the polygon,
or possibly (but this will rarely happen) the line intersects the polyon.
Now, the phrasing of this question says "if a line intersects a polygon", so
this is a decision problem.  One possibility (the decision model approach) is
to reduce the question to some other (well known) problem Q, and then try to
solve Q.  An answer to Q gives an answer to the original decision problem.
In recent years, many geometric problems have been successfully modeled in a
new language called PostScript.  (See "PostScript Language", by Adobe Systems
Incorporated, ISBN # 0-201-10179-3, co. 1985).
So, given a line L and a polygon P, we can write a PostScript program that
draws the line L and the polygon P, and then "outputs" the answer.  By
"output", we mean the program executes a command called "showpage", which
actually prints a page of paper containing the line and the polygon.  A quick
examination of the paper provides an answer to the reduced problem Q, and thus
the original problem.
There are two small problems with this approach.
(1) There is an infinite number of ways to encode L and P into the
reduced problem Q.  So, we will be forced to invoke the Axiom of
Choice (or equivalently, Zorn's Lemma).  But the use of the Axiom of
Choice is not regarded in a very serious light these days.
(2) More importantly, the question arises as to whether or not the
PostScript program Q will actually output a piece of paper; or in
other words, will it halt?
Now, PostScript is expressive enough to encode everything that a
Turing Machine might do; thus the halting problem (for PostScript) is
undecidable.  It is quite possible that the original problem will turn
out to be undecidable.
I won't even begin to go into other difficulties, such as aliasing, finite
precision and running out of ink, paper or both.
A couple of references might be:
1. Principia Mathematica.  Newton, I.  Cambridge University Press, Cambridge,
England.  (Sorry, I don't have an ISBN# for this).
2. An Introduction to Automata Theory, Languages, and Computation.  Hopcroft, J
and Ulman, J.
3. The C Programming Language. Kernighan, B and Ritchie, D.
4. A Tale of Two Cities. Dickens, C.
--------
From: td@alice.UUCP (Tom Duff)
Summary: Overkill.
Organization: AT&T Bell Laboratories, Murray Hill NJ
The situation is not nearly as bleak as Baraff suggests (he should know
better, he's hung around The Labs for long enough).  By the well known
Dobbin-Dullman reduction (see J. Dullman & D. Dobbin, J. Comp. Obfusc.
37,ii:  pp. 33-947, lemma 17(a)) line-polygon intersection can be reduced to
Hamiltonian Circuit, without(!) the use of Grobner bases, so LPI (to coin an
acronym) is probably only NP-complete.  Besides, Turing-completeness will no
longer be a problem once our Cray-3 is delivered, since it will be able to
complete an infinite loop in 4 milliseconds (with scatter-gather.)
--------
From: deb@svax.cs.cornell.edu (David Baraff)
Well, sure its no worse than NP-complete, but that's ONLY if you restrict
yourself to the case where the line satisfies a Lipschitz condition on its
second derivative.  (I think there's an '89 SIGGRAPH paper from Caltech that
deals with this).
--
------------------------------------------------------------------------------
J o n a s   Y n g v e s s o n          email: jonas-y@isy.liu.se
Dept. of Electrical Engineering	        voice:  +46-(0)13-282162
University of Linkoping, Sweden         fax  :  +46-(0)13-139282
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Point within a polygon
Organization: University of Southern California, Los Angeles, CA
Lines: 28
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
Keywords: point, polygon
In article <1993Apr14.102007.20664@uk03.bull.co.uk>, scrowe@hemel.bull.co.uk (Simon Crowe) writes:
|> I am looking for an algorithm to determine if a given point is bound by a
|> polygon. Does anyone have any such code or a reference to book containing
|> information on the subject ?
|>
|> 		Regards
|>
|> 			Simon
Basically, there are two algorithms determining whether a point is inside,
outside or on the polygon. The first one is Ray (or half line) method. In
this method, you can draw any ray, if the number of the intersection point
of the ray and the polygon is even, then it is outside. If the number is odd,
then it is inside. Of cause, you have to deal with the special cases which
may make you headache.
The second method is PI algorithm. Draw the lines between the point and
all the vertices on the polygon. Calculate and sum the angles of the
successive lines. If the result is 2*PI, then it is inside. If PI, then
it is on the polygon. Otherwise it is outside.
My experience tells the second method is relible.
Hope this helps.
Yeh
USC
From: channui@austin.ibm.com (Christopher Chan-Nui)
Subject: Re: Two pointing devices in one COM-port?
Reply-To: channui@austin.ibm.com
Organization: IBM Austin
X-Newsreader: TIN [version 1.1 PL9]
Lines: 22
Bob Davis (sonny@trantor.harris-atd.com) wrote:
: In article <C4tKGM.1v6@unix.portal.com>, wil@shell.portal.com (Ville V Walveranta) writes:
: |>
: |>         Is there any way to connect two pointing devices to one serial
: |>         port? I haven't tried this but I believe they would interfere
: |>         with each other (?) even if only one at a time would be used.
: 	Just get an A-B switch for RS232. Look in Computer Shopper.
: They are available fairly cheap. They allow switching between two
: serial devices on a single port.
Unfortunately the poster wants to use an internal and an external modem so a
switch isn't going to help them.  If you aren't using your com ports for
anything else, just define them on different com ports.  Define your internal
modem to be say, com1, and your external modem to be com3.  You really
shouldn't have to worry about interrupt conflicts since you won't be using
both modems at the same time :).
---
Christopher Chan-Nui    | Investment in reliability will increase until it
channui@austin.ibm.com  | exceeds the probable cost of errors, or until someone
#include <disclaimer.h> | insists on getting some useful work done.
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: Fractals? what good are they?
Organization: Purdue University
Lines: 17
In article <7208@pdxgate.UUCP> idr@rigel.cs.pdx.edu (Ian D Romanick) writes:
> They talked about another routine that could yield up to 150 to 1
> compress with no image loss that *I* could notice.  The draw back is that it
> takes a hell of a long time to compress something.  I'll have to see if I can
> find the book so that I can give more exact numbers.  TTYL.
That's a typical claim, though they say they've improved
compression speed considerably.  Did you find out anything else
about the book?  I'd be interested in looking at it if you could give me
any pointers.
Reportedly, early fractal compression times of 24-100 hours used
that marvelous piece of hardware called "grad students" to do the
work.  Supposedly it's been automated since about 1988, but I'm still
waiting to be impressed.
Allen B (Sign me "Cynical")
From: clump@acaps.cs.mcgill.ca (Clark VERBRUGGE)
Subject: Re: BGI Drivers for SVGA
Organization: SOCS, McGill University, Montreal, Canada
X-Newsreader: TIN [version 1.1 PL8]
Lines: 29
Dominic Lai (cs_cylai@cs.ust.hk) wrote:
: Simon Crowe (scrowe@hemel.bull.co.uk) wrote:
: 8~> I require BGI drivers for Super VGA Displays and Super XVGA Displays. Does
: 8~> anyone know where I could obtain the relevant drivers ? (FTP sites ??)
: 	I would like to know too!
: Regards,
: Dominic
garbo.uwasa.fi (or one of its many mirrors) has a file
called "svgabg40" in the programming subdirectory.
These are svga bgi drivers for a variety of cards.
[from the README]:
"Card types supported: (SuperVGA drivers)
Ahead, ATI, Chips & Tech, Everex, Genoa, Paradise, Oak, Trident (both 8800
and 8900, 9000), Tseng (both 3000 and 4000 chipsets) and Video7.
These drivers will also work on video cards with VESA capability.
The tweaked drivers will work on any register-compatible VGA card."
enjoy,
Clark Verbrugge
clump@cs.mcgill.ca
--
HONK HONK BLAT WAK WAK WAK WAK WAK UNGOW!
From: cptully@med.unc.edu (Christopher P. Tully,Pathology,62699)
Subject: Re: TIFF: philosophical significance of 42
Nntp-Posting-Host: helix.med.unc.edu
Reply-To: cptully@med.unc.edu
Organization: UNC-CH School of Medicine
Lines: 40
In article 8HC@mentor.cc.purdue.edu, ab@nova.cc.purdue.edu (Allen B) writes:
>In article <1993Apr10.160929.696@galki.toppoint.de> ulrich@galki.toppoint.de
>writes:
>> According to the TIFF 5.0 Specification, the TIFF "version number"
>> (bytes 2-3) 42 has been chosen for its "deep philosophical
>> significance".
>> Last week, I read the Hitchhikers Guide To The Galaxy,
>> Is this actually how they picked the number 42?
>
>I'm sure it is, and I am not amused.  Every time I read that part of the
>TIFF spec, it infuriates me- and I'm none too happy about the
>complexity of the spec anyway- because I think their "arbitrary but
>carefully chosen number" is neither.  Additionally, I find their
>choice of 4 bytes to begin a file with meaningless of themselves- why
>not just use the letters "TIFF"?
>
>(And no, I don't think they should have bothered to support both word
>orders either- and I've found that many TIFF readers actually
>don't.)
>
>ab
Why so up tight?  FOr that matter, TIFF6 is out now, so why not gripe
about its problems?  Also, if its so important to you, volunteer to
help define or critique the spec.
Finally, a little numerology:  42 is 24 backwards, and TIFF is a 24 bit
image format...
Chris
---
*********************************************************************
Christopher P. Tully				cptully@med.unc.edu
Univ. of North Carolina - Chapel Hill
CB# 7525					(919) 966-2699
Chapel Hill, NC 27599
*********************************************************************
I get paid for my opinions, but that doesn't mean that UNC or anybody
else agrees with them.
From: emm@tamarack202.cray.com (Mike McConnell)
Subject: Interleaf to CGM
Originator: emm@tamarack202
Keywords: Interleaf, CGM, ileaf
Lines: 13
Nntp-Posting-Host: tamarack202.cray.com
Organization: Cray Research, Inc.
Has anyone successfully converted Interleaf graphics to CGM, or even heard
of it being done????
We'd love to hear about it.
-Mike McConnell
emm@cray.com
From: mogal@deadhead.asd.sgi.com (Joshua Mogal)
Subject: Re: Hollywood Hits, Virtual Reality
Organization: Silicon Graphics, Inc.
Lines: 137
NNTP-Posting-Host: deadhead.asd.sgi.com
Sorry I missed you Raymond, I was just out in Dahlgren last month...
I'm the Virtual Reality market manager for Silicon Graphics, so perhaps I
can help a little.
In article <1993Mar17.185725.13487@relay.nswc.navy.mil>,
rchui@nswc-wo.nswc.navy.mil (Raymond Chui) writes:
|> Hello, the real reality. Our agency started to express interest in
|> virtual reality(VR).  So far, we do not know much about VR.  All we
|> know about are the Hollywood movies "The Terminater 2" and "Lawnmover
|> Man".  We also know something about VR from ABC news magazine and
|> Computer Graphics World magazine.
Unfortunately, while SGI systems were used to create the special effects
for both Terminator 2 and Lawnmower Man, those are film-quality computer
graphics, rendered in software and written to film a frame at a time.  Each
frame of computer animation for those films took hours to render on
high-end parallel processing computer systems. Thus, that level of graphics
would be difficult, if not impossible, to acheive in real time (30 frames
per second).
|>
|> We certainly want to know more about VR.  Who are the leading
|> companies,
|> agencies, universities?  What machines support VR (i.e. SGI, Sun4,
|> HP-9000, BIM-6000, etc.)?
It depends upon how serious you are and how advanced your application is.
True immersive visualization (VR), requires the rendering of complex visual
databases at anywhere from 20 to 60 newly rendered frames per second.  This
is a similar requirement to that of traditional flight simulators for pilot
training. If the frame rate is too low, the user notices the stepping of
the frames as they move their head rapidly around the scene, so the motion
of the graphics is not smooth and contiguous.  Thus the graphics system
must be powerful enough to sustain high frame rates while rendering complex
data representations.
Additionally, the frame rate must be constant.  If the system renders 15
frames per second at one point, then 60 frames per second the next (perhaps
due to the scene in the new viewing direction being simpler than what was
visible before), the user can get heavily distracted by the medium (the
graphics computer) rather than focusing on the data. To maintain a constant
frame rate, the system must be able to run in real-time.  UNIX in general
does not support real-time operation, but Silicon Graphics has modified the
UNIX kernel for its multi-processor systems to be able to support real-time
operation, bypassing the usual UNIX process priority-management schemes.
Uniprocessor systems running UNIX cannot fundamentally support real-time
operation (not Sun SPARC10, not HP 700 Series systems, not IBM RS-6000, not
even SGI's uniprocessor systems like Indigo or Crimson). Only our
multiprocessor Onyx and Challenge systems support real-time operation due
to their Symmetric Multi-Processing (SMP) shared-memory architecture.
From a graphics perspective, rendering complex virtual environments
requires advanced rendering techniques like texture mapping and real-time
multi-sample anti-aliasing.  Of all of the general purpose graphics systems
on the market today, only Crimson RealityEngine and Onyx RealityEngine2
systems fully support these capabilities. The anti-aliasing is particularly
important, as the crawling jagged edges of aliased polygons is an
unfortunate distraction when immersed in a virtual environment.
|>  What kind of graphics languages are used with VR
|> (GL, opengl, Phigs, PEX, GKS, etc.)?
You can use the general purpose graphics libraries listed above to develop
VR applications, but that is starting at a pretty low level. There are
off-the- shelf software packages available to get you going much faster,
being targeted directly at the VR application developer. Some of the most
popular are (in no particular order):
- Division Inc.		    (Redwood City, CA) - dVS
- Sens8 Inc.		    (Sausalito, CA)    - WorldToolKit
- Naval Postgraduate School (Monterey, CA)     - NPSnet (FREE!)
- Gemini Technology Corp    (Irvine, CA)       - GVS Simation Series
- Paradigm Simulation Inc.  (Dallas, TX)       - VisionWorks, AudioWorks
- Silicon Graphics Inc.	    (Mountain View,CA) - IRIS Performer
There are some others, but not off the top of my head...
|> What companies are making
|> interface devices for VR (goggles or BOOM (Binocular Omni-Orientational
|> Monitor), hamlets, gloves, arms, etc.)?
There are too many to list here, but here is a smattering:
- Fake Space Labs	    (Menlo Park,CA)    - BOOM
- Virtual Technologies Inc. (Stanford, CA)     - CyberGlove
- Digital Image Design	    (New York, NY)     - The Cricket (3D input)
- Kaiser Electro Optics	    (Carlsbad, CA)     - Sim Eye Helmet Displays
- Virtual Research	    (Sunnyvale, CA)    - Flight Helmet display
- Virtual Reality Inc.	    (Pleasantville,NY) - Head Mtd Displays, s/w
- Software Systems	    (San Jose, CA)     - 3D Modeling software
- etc., etc., etc.
|> What are those company's
|> addresses and phone numbers?  Where we can get a list name of VR
|> experts
|> and their phone numbers and Email addresses?
Read some of the VR books on the market:
- Virtual Reality - Ken Pimental and Ken Texiera (sp?)
- Virtual Mirage
- Artificial Reality - Myron Kreuger
- etc.
Or check out the newsgroup sci.virtual_worlds
Feel free to contact me for more info.
Regards,
Josh
--
**************************************************************************
**				     **					**
**	Joshua Mogal		     **	Product Manager			**
**	Advanced Graphics Division   **	  Advanced Graphics Systems	**
**	Silicon Graphics Inc.	     **	Market Manager			**
**	2011 North Shoreline Blvd.   **	  Virtual Reality		**
**	Mountain View, CA 94039-7311 **	  Interactive Entertainment	**
**	M/S 9L-580		     **					**
**				     *************************************
**	Tel:	(415) 390-1460						**
**	Fax:	(415) 964-8671						**
**	E-mail:	mogal@sgi.com						**
**									**
**************************************************************************
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: Point within a polygon
Keywords: Obfuscated PostScript
Organization: Purdue University
Lines: 60
In article <jonas-y.734802983@gouraud> jonas-y@isy.liu.se (Jonas Yngvesson)
writes:
> Intersection Between a Line and a Polygon (UNDECIDABLE??),
> 	by Dave Baraff, Tom Duff
>
> 	From: deb@charisma.graphics.cornell.edu
> In recent years, many geometric problems have been successfully modeled in a
> new language called PostScript.  (See "PostScript Language", by Adobe Systems
> Incorporated, ISBN # 0-201-10179-3, co. 1985).
>
> So, given a line L and a polygon P, we can write a PostScript program that
> draws the line L and the polygon P, and then "outputs" the answer.  By
> "output", we mean the program executes a command called "showpage", which
> actually prints a page of paper containing the line and the polygon.  A quick
> examination of the paper provides an answer to the reduced problem Q, and
thus
> the original problem.
Curiously, in modern PostScript, the point in a polygon problem can
be solved even more easily.  To wit:
%!
%%Title: Point in Polygon
%%Creator: Allen B (ab@cc.purdue.edu)
%%For: the amusement of comp.graphics regulars
%%LanguageLevel: 2
%%DocumentNeededResource: humor sense thereof
%%EndComments
% This program will test whether a point is inside a given polygon.
% Currently it uses the even-odd rule, but that can be changed by
% replacing ineofill with infill.  These are Level 2 operators,
% so if you've only got Level 1 you're out of luck.
%
% The result will be printed on the output stream.
%
% Caution: only accurate to device pixels!
% Put a huge scale in first if you aren't sure.
% Point to test
% PUT X AND Y COORDINATES HERE
50 75
% Vertices of polygon in counter-clockwise order
% PUT ARRAY OF PAIRS OF COORDINATES HERE
[
[   0   0 ]
[ 100   0 ]
[ 100 100 ]
[  67 100 ]
[  67  50 ]
[  33  50 ]
[  33 100 ]
[   0 100 ]
]
dup 0 get aload pop moveto dup length 1 dup 3 1 roll
sub getinterval { aload pop lineto } forall closepath
ineofill { (Yes!) } { (No!) } ifelse =
From: robert@cpuserver.acsc.com (Robert Grant)
Subject: Virtual Reality for X on the CHEAP!
Organization: USCACSC, Los Angeles
Lines: 187
Distribution: world
Reply-To: robert@cpuserver.acsc.com (Robert Grant)
NNTP-Posting-Host: cpuserver.acsc.com
Hi everyone,
I thought that some people may be interested in my VR
software on these groups:
*******Announcing the release of Multiverse-1.0.2*******
Multiverse is a multi-user, non-immersive, X-Windows based Virtual Reality
system, primarily focused on entertainment/research.
Features:
Client-Server based model, using Berkeley Sockets.
No limit to the number of users (apart from performance).
Generic clients.
Customizable servers.
Hierachical Objects (allowing attachment of cameras and light sources).
Multiple light sources (ambient, point and spot).
Objects can have extension code, to handle unique functionality, easily
attached.
Functionality:
Client:
The client is built around a 'fast' render loop. Basically it changes things
when told to by the server and then renders an image from the user's
viewpoint. It also provides the server with information about the user's
actions - which can then be communicated to other clients and therefore to
other users.
The client is designed to be generic - in other words you don't need to
develop a new client when you want to enter a new world. This means that
resources can be spent on enhancing the client software rather than adapting
it. The adaptations, as will be explained in a moment, occur in the servers.
This release of the client software supports the following functionality:
o Hierarchical Objects (with associated addressing)
o Multiple Light Sources and Types (Ambient, Point and Spot)
o User Interface Panels
o Colour Polygonal Rendering with Phong Shading (optional wireframe for
faster frame rates)
o Mouse and Keyboard Input
(Some people may be disappointed that this software doesn't support the
PowerGlove as an input device - this is not because it can't, but because
I don't have one! This will, however, be one of the first enhancements!)
Server(s):
This is where customization can take place. The following basic support is
provided in this release for potential world server developers:
o Transparent Client Management
o Client Message Handling
This may not sound like much, but it takes away the headache of
accepting and
terminating clients and receiving messages from them - the
application writer
can work with the assumption that things are happening locally.
Things get more interesting in the object extension functionality. This is
what is provided to allow you to animate your objects:
o Server Selectable Extension Installation:
What this means is that you can decide which objects have extended
functionality in your world. Basically you call the extension
initialisers you want.
o Event Handler Registration:
When you develop extensions for an object you basically write callback
functions for the events that you want the object to respond to.
(Current events supported: INIT, MOVE, CHANGE, COLLIDE & TERMINATE)
o Collision Detection Registration:
If you want your object to respond to collision events just provide
some basic information to the collision detection management software.
Your callback will be activated when a collision occurs.
This software is kept separate from the worldServer applications because
the application developer wants to build a library of extended objects
from which to choose.
The following is all you need to make a World Server application:
o Provide an initWorld function:
This is where you choose what object extensions will be supported, plus
any initialization you want to do.
o Provide a positionObject function:
This is where you determine where to place a new client.
o Provide an installWorldObjects function:
This is where you load the world (.wld) file for a new client.
o Provide a getWorldType function:
This is where you tell a new client what persona they should have.
o Provide an animateWorld function:
This is where you can go wild! At a minimum you should let the objects
move (by calling a move function) and let the server sleep for a bit
(to avoid outrunning the clients).
That's all there is to it! And to prove it here are the line counts for the
three world servers I've provided:
generic - 81 lines
dactyl - 270 lines (more complicated collision detection due to the
stairs! Will probably be improved with future
versions)
dogfight - 72 lines
Location:
This software is located at the following site:
ftp.u.washington.edu
Directory:
pub/virtual-worlds
File:
multiverse-1.0.2.tar.Z
Futures:
Client:
o Texture mapping.
o More realistic rendering: i.e. Z-Buffering (or similar), Gouraud shading
o HMD support.
o Etc, etc....
Server:
o Physical Modelling (gravity, friction etc).
o Enhanced Object Management/Interaction
o Etc, etc....
Both:
o Improved Comms!!!
I hope this provides people with a good understanding of the Multiverse
software,
unfortunately it comes with practically zero documentation, and I'm not sure
whether that will ever be able to be rectified! :-(
I hope people enjoy this software and that it is useful in our explorations of
the Virtual Universe - I've certainly found fascinating developing it, and I
would *LOVE* to add support for the PowerGlove...and an HMD :-)!!
Finally one major disclaimer:
This is totally amateur code. By that I mean there is no support for this code
other than what I, out the kindness of my heart, or you, out of pure
desperation, provide. I cannot be held responsible for anything good or bad
that may happen through the use of this code - USE IT AT YOUR OWN RISK!
Disclaimer over!
Of course if you love it, I would like to here from you. And anyone with
POSITIVE contributions/criticisms is also encouraged to contact me. Anyone who
hates it: > /dev/null!
************************************************************************
*********
And if anyone wants to let me do this for a living: you know where to
write :-)!
************************************************************************
*********
Thanks,
Robert.
robert@acsc.com
^^^^^^^^^^^^^^^
From: robert@cpuserver.acsc.com (Robert Grant)
Subject: Re: Virtual Reality for X on the CHEAP!
Organization: USCACSC, Los Angeles
Lines: 11
Distribution: world
Reply-To: robert@cpuserver.acsc.com (Robert Grant)
NNTP-Posting-Host: cpuserver.acsc.com
Update on location!!
Directory should be:
public/virtual-worlds!!
^^^^^^
Sorry! :-)
Robert.
robert@acsc.com
From: ad994@Freenet.carleton.ca (Jason Wiggle)
Subject: PCX
Organization: National Capital Freenet, Ottawa, Canada
Lines: 27
Hello
HELP!!! please
I am a student of turbo c++ and graphics programming
and I am having some problems finding algorithms and code
to teach me how to do some stuff..
1) Where is there a book or code that will teach me how
to read and write pcx,dbf,and gif files?
2) How do I access the extra ram on my paradise video board
so I can do paging in the higher vga modes ie: 320x200x256
800x600x256
3) anybody got a line on a good book to help answer these question?
Thanks very much !
send reply's to : Palm@snycanva.bitnet
Peace be
Blessed be
Stephen Palm
From: cywang@ux1.cso.uiuc.edu (Crying Freeman)
Subject: What's a good assembly VGA programming book?
Organization: University of Illinois at Urbana
Lines: 9
Can someone give me the title of a good VGA graphics programming book?
Please respond by email. Thanks!
--Yuan
--
Che-Yuan Wang
cw21219@uxa.cso.uiuc.edu
cywang@ux1.cso.uiuc.edu
From: davidr@rincon.ema.rockwell.com (David J. Ray)
Subject: Re: Fractals? what good are they?
Organization: Rockwell International
X-Newsreader: Tin 1.1 PL5
Lines: 16
In regards to fractal commpression, I have seen 2 fractal compressed "movies".
They were both fairly impressive.  The first one was a 64 gray scale "movie" of
Casablanca, it was 1.3MB and had 11 minutes of 13 fps video.  It was a little
grainy but not bad at all.  The second one I saw was only 3 minutes but it
had 8 bit color with 10fps and measured in at 1.2MB.
I consider the fractal movies a practical thing to explore.  But unlike many
other formats out there, you do end up losing resolution.  I don't know what
kind of software/hardware was used for creating the "movies" I saw but the guy
that showed them to me said it took 5-15 minutes per frame to generate.  But as
I said above playback was 10 or more frames per second.  And how else could you
put 11 minutes on one floppy disk?
davidr@rincon.ema.rockwell.com
My opinions are my own except where they are shared by others in which case I
will probably change my mind.
From: Ivanov Sergey <serge@argus.msk.su>
Subject: Re: Re: VGA 640x400 graphics mode
Distribution: world
Organization: Commercial and Industrial Group ARGUS
Reply-To: serge@argus.msk.su
Lines: 7
> My 8514/a VESA TSR supports this
Can You report CRT and other register state in this mode ?
Thank's.
Serge Ivanov (serge@argus.msk.su)
From: boylan@pi.eai.iastate.edu (Terran Boylan)
Subject: Reaction-Diffusion techniques
Organization: Engineering Animation, Inc.
Lines: 24
This past week I've been playing with some of the R-D (Reaction-
Diffusion, not to be confused with RDS or R&D) techniques
from SIGGRAPH '91.
I was wondering what material is available to explain the control
mechanism a little more.  It seems to me very much like a matter of
picking random magic numbers and sitting back and waiting.  Although
both of the papers (Turk and Witkin & Kass) were very well organized
and extremely helpful, I guess what I need is a more basic description
of the technique, especially wrt the control mechanisms.  The tests
that I did had a tendency to either turn into blurry mud or become
unstable.
Is there any info available online?  Source code would be great but
not necessary.
Thanks!
--
---
Terran J. Boylan, Sr. Artist/Programmer | "It's better to have loved
Engineering Animation, Inc.,  Ames, IA  | and lost than just to have
(515) 296-9908 / (515) 296-7892 (> 5PM) | lost." -- Dorky Dog
From: rjs002c@parsec.paradyne.com (Robert Synoski)
Subject: 24 bit Graphics cards
Nntp-Posting-Host: parsec
Reply-To: rjs002c@parsec.paradyne.com
Organization: AT&T Paradyne, Largo Florida
Lines: 10
I am looking for EISA or VESA local bus graphic cards that support at least
1024x786x24 resolution.  I know Matrox has one, but it is very expensive.  All the
other cards I know of, that support that resoultion, are striaght ISA.
Also are there any X servers for a unix PC that support 24 bits?
thanks
From: dls@aeg.dsto.gov.au (David Silver)
Subject: Re: Fractal Generation of Clouds
Organization: Defence Science and Technology Organisation
Lines: 14
NNTP-Posting-Host: kestrel.dsto.gov.au
haabn@nye.nscee.edu (Frederick J. Haab) writes:
>I need to implement an algorithm to fractally generate clouds
>as sort of a benchmark for some algorithms I'm working on.
Just as a matter of interest, a self-promo computer graphics sequence
that one of the local TV stations used to play quite a lot a couple of
years ago showed a 3D flyover of Australia from the West coast to the
East.  The clouds were quite recognisable as fuzzy, flat, white
Mandlebrot sets!!
David Silver
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Please Recommend 3D Graphics Library For Mac.
Organization: Boeing Computer Services
Lines: 15
Hi Netters,
I'm building a CAD package and need a 3D graphics library that can handle
some rudimentry tasks, such as hidden line removal, shading, animation, etc.
Can you please offer some recommendations?
I'll also need contact info (name, address, email...) if you can find it.
Thanks
(Please Post Your Responses, in case others have same need)
Bob Carpenter
From: kai_h@postoffice.utas.edu.au (Kai Howells)
Subject: Re: HOT NEW 3D Software
Organization: University of Tasmania (Australia)
Lines: 20
In article <1qflpk$re1@usenet.INS.CWRU.Edu>, mbc@po.CWRU.Edu (Michael B.
Comet) wrote:
>
>
> In a previous article, trb3@Ra.MsState.Edu (Tony R. Boutwell) says:
>
> >There is a new product for the (IBM'ers) out there... it is called
> >IMAGINE and it just started shipping yesterday... I can personally attest that it will blow the doors off of 3D-Studio.  It is made by IMPUlSE, and is in its
> >
> 	Well....I don't know about its competing with 3D studio, but
> it's pretty powerful allright.
Yes but a key issue is _SPEED_ how fast is Imagine? And is it as easy to
use
as 3D Studio? Can it just do a render as fast as 3DS if you don't want
things like IOR etc.. 3DS can do fine shadows, animated reflection maps,
animated bump maps, animated anything maps, and with the IPAS routines
(Not that I've ever seen them) It can do explosions, top quality
morphing, fire, rain, lens flares etc..
I'm not knocking imagine, I just want to know how it compares with 3DS
From: u895027@franklin.cc.utas.edu.au (Mark Mackey)
Subject: Raytracers: which is best?
Organization: University of Tasmania, Australia.
Lines: 15
Hi all!
I've just recently become seriously hooked on POV, but there are a few
thing that I want to do that POV won't do (penumbral shadows, dispersion
etc.). I was just wondering: what other shareware/freeware raytracers are
out there, and what can they do? I've heard of Vivid and Polyray and
Rayshade and so on, but I'd rather no wade through several hundred pages of
manual for each trying to work out what their capabilities are. Can anyone
help? A comparison of tracing speed between each program would also be
mucho useful.
Mark.
-------------------------------------------------------------------------------
Mark Mackey                 | Life is a terminal disease and oxygen is
mmackey@aqueous.ml.csiro.au | addictive. Are _you_ hooked?
-------------------------------------------------------------------------------
From: petro@server.uwindsor.ca (PETRO DAVID              )
Subject: Shareware
Distribution: comp.graphics
Organization: University of Windsor, Ontario, Canada
Lines: 20
Recently I saw the latest Computer Shopper and in it there was an article
on nice shareware graphics programs. They looked pretty good and of the 6
listed in the article, one I had (Graphics Workshop), one I found via
archie (Draft Choice - old version though) and the rest I couldn't find.
So if there is anyone that knows where I can get the following programs
via anonymous ftp, please let me know.
Adkins Graphics :AG1.ZIP, AG2.ZIP
Draft Choice (latest VGA version) : DRAFTC.ZIP
Envision Publisher: ENVIS1.ZIP, ENVIS2.ZIP
Neopaint: NEOPNT.ZIP
Thanx in advance.
D.PETRO
--
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
>     DAVID PETRO           KWYJIBO-- A big, dumb, balding       <
>     Dept. of Physics                North American ape.        <
>     University of Windsor petro@server.uwindsor.ca             <
From: mmadsen@bonnie.ics.uci.edu (Matt Madsen)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Nntp-Posting-Host: bonnie.ics.uci.edu
Reply-To: mmadsen@ics.uci.edu (Matt Madsen)
Organization: Univ. of Calif., Irvine, Info. & Computer Sci. Dept.
Lines: 27
Robert G. Carpenter writes:
>Hi Netters,
>
>I'm building a CAD package and need a 3D graphics library that can handle
>some rudimentry tasks, such as hidden line removal, shading, animation, etc.
>
>Can you please offer some recommendations?
>
>I'll also need contact info (name, address, email...) if you can find it.
>
>Thanks
>
>(Please Post Your Responses, in case others have same need)
>
>Bob Carpenter
>
I too would like a 3D graphics library!  How much do C libraries cost
anyway?  Can you get the tools used by, say, RenderMan, and can you get
them at a reasonable cost?
Sorry that I don't have any answers, just questions...
Matt Madsen
mmadsen@ics.uci.edu
From: kshin@stein.u.washington.edu (Kevin Shin)
Subject: thinning algorithm
Organization: University of Washington, Seattle
Lines: 10
NNTP-Posting-Host: stein.u.washington.edu
Hi, netters
I am looking for source code that can reads the ascii file
or bitmap file and produced the thinned image.
For example, to preprocess the character image I want to
apply thinning algorithm.
thanks
kevin
.
From: geigel@seas.gwu.edu (Joseph Geigel)
Subject: Looking for AUTOCAD .DXF file parser
Organization: George Washington University
Lines: 16
Hello...
Does anyone know of any C or C++ function libraries in the public domain
that assist in parsing an AUTOCAD .dxf file?
Please e-mail.
Thanks,
--
-- jogle
geigel@seas.gwu.edu
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Delaunay Triangulation
Organization: University of Southern California, Los Angeles, CA
Lines: 9
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
Does anybody know what Delaunay Triangulation is?
Is there any reference to it?
Is it useful for creating 3-D objects? If yes, what's the advantage?
Thanks in advance.
Yeh
USC
From: katkere@krusty.eecs.umich.edu (Arun Katkere)
Subject: Re: cylinder and ray
Reply-To: katkere@engin.umich.edu
Organization: University of Michigan EECS Dept., Ann Arbor, MI
Lines: 19
In article <1qc1fgINNbv4@darkstar.UCSC.EDU>, koehler@secs.ucsc.edu writes:
|> I would be most thrilled if some kind person could help me with the following
|> Given a cylinder in 3D -defined as a line segment between two points and
|> a radius (e.g. Sx,Sy,Sz to Ex,Ey,Ez and r), what is the easiest (and not
|> too expensive) way to find if a ray -defined as another line through two
|> points -cuts through this cylinder and if so where?
|> I think the test for touching is rather simple: if the closest approach
|> of the two lines is less than r, then the ray does penetrate the cylinder.
Nope, this won't work for a cylinder. You can have a line arbitrarily close
to the the cylinder backbone, and yet not intersect it. The test works for a
pillbox, though. (a cylinder with two hemispheres attached at the ends.)
|> Thanks,
|> 	Ryan 	(koehler@secs.ucsc.edu)
-arun
--
From: lee@luke.rsg.hac.com (C. Lee)
Subject: Re: Crimson (Was: Kubota Announcement?)
Organization: Hughes Transportation Simulation Center, HAC; Culver City, CA
Lines: 30
In article <115072@bu.edu> kiki@PROBLEM_WITH_INEWS_GATEWAY_FILE (Keith Baccki) writes:
>C. Lee (lee@obiwan.rsg.hac.com) wrote:
>:  Did you say DEC Alpha?  Upgrade path from [...]
>:  6xx0: replace.  Upgrade path from VAX 66x0 to Alpha: replace the system.
>	Not totally fair - you haven't mentioned the DECstation
>series. I think if SGI made CISC mainframes they wouldn't provide
>an upgrade path to an Onyx.
I agree with you about the upgrade path; but I think I was fair.
The original posting complained (1) about SGI coming out with newer (and
better) architectures and not having an upgrade path from the older ones,
and (2) that DEC did.
On statement (1), I merely attempted to point out that all computer
companies are constantly attempting to improve their product (& market
position/share).  In so doing, they eventually come to a point where they
have a new architecture, and the only upgrade path is to replace the
system.  And the particular system he was complaining about was (in
computer lifetimes) relatively old.
On statement (2), I felt DEC's history of providing upgrades was not far
superior than the industry "average", and that, in my opinion, SGI's
history is better than DEC's.
(And what is DEC doing with it's MIPS based DECstation line?  Are they
going to "abandon" it for their Alpha based line, or provide an upgrade
path to R4400's and TFP's and R5's?)
--
From: williams4000@iscsvax.uni.edu
Subject: BOOK OF KELLS CORRECTION!!!
Organization: University of Northern Iowa
Lines: 11
I aparantly mistyped the address for the ftp site which holds the images. The
correct address should be:
jupiter.csd.unb.ca
^^
rather than jupiter.csd.unb.edu.  They are in the directory:
\pub\library.info
Jon Williams
University of Northern Iowa
From: jxl9011@ultb.isc.rit.edu (J.X. Lee)
Subject: JOB
Nntp-Posting-Host: ultb-gw.isc.rit.edu
Organization: Rochester Institute of Technology
Distribution: SERI
Lines: 45
JOB OPPORTUNITY
---------------
SERI(Systems Engineering Research Institute), of KIST(Korea
Institute of Science and Technology) is looking for the resumes
for the following position and need them by the end of June (6/30).
If you are interested, send resumes to:
CAD/CAE lab (6th floor)
Systems Engineering Research Institute
Korea Institute of Science and Technology
Yousung-Gu, Eoeun-Dong,
Daejon. Korea
305-600
COMPANY: Systems Engineering Research Institute
TITLE  : Senior Research Scientist
JOB DESCRIPTION : In depth knowledge of C.
Working knowledge of Computer Aided Design.
Working knowledge of Computer Graphics.
Working knowledge of Virtual Reality.
Skills not required but desirable : knowledge of
data modeling, virtual reality experience,
understanding of client/server architecture.
REQUIREMENT : Ph.D
JOB LOCATION : Daejon, Korea
Contact Info : Chul-Ho, Lim
CAD/CAE lab (6th floor)
Systems Engineering Research Institute
Korea Institute of Science and Technology
Yousung-Gu, Eoeun-Dong,
Daejon. Korea
305-600
Phone) 82-42-869-1681
Fax)   82-42-861-1999
E-mail) jxl9011@129.21.200.201
From: egg@dstos3.dsto.gov.au
Subject: Chosing optimal colors for colormap ?
Organization: Defence Science and Technology Organisation
Lines: 12
NNTP-Posting-Host: dstos3.dsto.gov.au
Hi,
I'm looking for an algorithm that would generate a good cross-section of
RGB colours given a limited colour map size.
The problem: I'm writing an application for the PC that may have at most 256
colors. I want to use one colormap (palette) for the application but I'd like
it to contain an even spread of colours of the visible spectrum. I could use
a 6x6x6 RGB cube but the problem is that a lot of those colours are almost
identical to the human eye.
Does anyone know how I can optimize my choice of colors ?
From: rsc@altair.csustan.edu (Steve Cunningham)
Subject: Re: SIGGRAPH
Summary: No free lunch this year!
Organization: CSU Stanislaus
Lines: 27
srnelson@speedsail.Eng.Sun.COM (Scott R. Nelson) writes:
> dave.mikelson@almac.co.uk (Dave Mikelson) writes:
> ...
> >Does anyone know if there is an 'open day' for the public at any time?
> >That is, not to attend conferences, but just browse around the
> >exhibits.  Or are the exhibits etc just for fully registered attendees?
> was free as long as you got it to Siggraph on or before July 7.
> For 1991, it was similar: $20.00 or free before July 9.  It is safe
> to assume that the same kind of deal will be available this year.
I just got my advance program and the "card in the back" is for the
Exhibits Plus program -- the exhibits plus admission to a number of
conference venues, including a special general session, "Behind the
Scenes: Computer Graphics in Film."  Admission is not free, but is a
nominal $30 (exhibits are open August 3 -- 5).
To get a copy of the advance program, you can call 312-321-6830; the
advance program itself is a good indication of the excitement of the
conference!
>
> Register early and get in for free.
Sorry -- doesn't work this year!
-- Steve Cunningham
From: rosa@ghost.dsi.unimi.it (massimo rossi)
Subject: 3d studio works changes!!!!
Organization: Computer Science Dep. - Milan University
Lines: 28
hi guys
like all people in this group i'm a fans of fractal and render sw
my favourite are fractint pov & 3dstudio 2.0
now listen my ideas
i'have just starting now to be able to use 3dstudio quite well
so i'm simulating a full animation of a f1 grand prix
unfortanatly just some lap(10?)
i' m very interested about all kind of .prj .3ds and so on
concerning about cars or parts of its (motors wheel ...)
(dxf are good enough)
does anyone have object to give me to complete my hard animation
anyway any exchanges about object material project will
be VERY APRECIATE!!!!!
is there a ftp site where I can find its?
i' m looking for .pov files too
(i 'm interested about cpu time comparision rendering images on
pov & 3dstusio)
thank to all
email me at rosa@ghost.sm.dsi.unimi.it
From: djmst19@unixd2.cis.pitt.edu (David J Madura)
Subject: Re: Rumours about 3DO ???
Lines: 13
X-Newsreader: Tin 1.1 PL3
dave@optimla.aimla.com (Dave Ziedman) writes:
: 3DO is still a concept.
: The software is what sells and what will determine its
: success.
Apparantly you dont keep up on the news.  3DO was shown
at CES to developers and others at private showings.  Over
300 software licensees currently developing software for it.
I would say that it is a *LOT* more than just a concept.
From: esuoc@csv.warwick.ac.uk (Ajay Soni)
Subject: Re: Please Recommend 3D Graphics Library For M
Organization: Computing Services, University of Warwick, UK
Lines: 44
Distribution: world
Reply-To: esuoc@csv.warwick.ac.uk
NNTP-Posting-Host: thyme.csv.warwick.ac.uk
In article 2G1@bcstec.ca.boeing.com, rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter) writes:
>Hi Netters,
>
>I'm building a CAD package and need a 3D graphics library that can handle
>some rudimentry tasks, such as hidden line removal, shading, animation, etc.
>
>Can you please offer some recommendations?
>
>I'll also need contact info (name, address, email...) if you can find it.
>
>Thanks
>
>(Please Post Your Responses, in case others have same need)
>
>Bob Carpenter
>
I've been given the sites of some excellent 3D objects on all sorts of file formats ...
Here's where they are:
Host plaza.aarnet.edu.au
Location: /graphics/graphics/mirrors
DIRECTORY drwxr-xr-x        512  Apr  4 14:32  avalon.chinalake.navy.mil
Host compute1.cc.ncsu.edu
Location: /mirrors/wustl/graphics/graphics/mirrors
DIRECTORY drwxr-xr-x        512  Mar 14 09:15  avalon.chinalake.navy.mil
Host wuarchive.wustl.edu
Location: /graphics/graphics/mirrors
DIRECTORY drwxr-xr-x        512  Jan  3 06:29  avalon.chinalake.navy.mil
See ya!
Ajay 8*)
From: joerg@sax.sax.de (Joerg Wunsch)
Subject: About the various DXF format questions
Organization: SaxNet, Dresden, Germany
Lines: 25
Distribution: world
NNTP-Posting-Host: sax.sax.de
Summary: List of sites holding documentation of DXF format
Keywords: DXF, graphics formats
Archie told me the following sites holding documentation about DXF:
Host nic.funet.fi   (128.214.6.100)
Last updated 15:11  7 Apr 1993
Location: /pub/csc/graphics/format
FILE      rwxrwxr--     95442  Dec  4  1991   dxf.doc
Host rainbow.cse.nau.edu   (134.114.64.24)
Last updated 17:09  1 Jun 1992
Location: /graphics/formats
FILE      rw-r--r--     95442  Mar 23 23:31   dxf.doc
Host ftp.waseda.ac.jp   (133.9.1.32)
Last updated 00:47  5 Apr 1993
Location: /pub/data/graphic
FILE      rw-r--r--     39753  Nov 18  1991   dxf.doc.Z
--
J"org Wunsch, ham: dl8dtl    : joerg_wunsch@uriah.sax.de
If anything can go wrong...  :   ...or:
.o .o                   : joerg@sax.de,wutcd@hadrian.hrz.tu-chemnitz.de,
<_      ... IT WILL!  : joerg_wunsch@tcd-dresden.de
From: lcd@umcc.umcc.umich.edu (Leon Dent)
Subject: Re: MPEG for x-windows MONO needed.
Organization: UMCC, Ann Arbor, MI
Lines: 20
NNTP-Posting-Host: umcc.umcc.umich.edu
On sunsite.unc.edu in pub/multimedia/utilities/unix find
mpeg_play-2.0.tar.Z.
I find for mono it works best as mpeg_play -dither threshold
though you can use            mpeg_play -dither mono
Face it, this is not be the best viewing situation.
Also someone has made a patch for mpeg_play that gives two more mono
modes  (mono2 and halftone).
They are by jan@pandonia.canberra.edu.au (Jan Newmarch).
And the patch can be found on csc.canberra.edu.au (137.92.1.1) under
/pub/motif/mpeg2.0.mono.patch.
Leon Dent
lcd@umcc.umich.edu
From: mtoivakk@abo.fi (Martti Toivakka PAP)
Subject: Compiled version of VOGL-library for PC?
Keywords: VOGL
Organization: Abo Akademi University
Lines: 11
Has anybody compiled VOGL-graphics library
for IBM-PC? I need to call it from MS-Fortran
but don't have MS-C to compile the sources.
Thanks for any help...
martti toivakka
mtoivakk@abo.fi
From: sts@mfltd.co.uk (Steve Sherwood (x5543))
Subject: Re: Virtual Reality for X on the CHEAP!
Reply-To: sts@mfltd.co.uk
Organization: Micro Focus Ltd, Newbury, England
Lines: 19
Has anyone got multiverse to work ?
I have built it on 486 svr4, mips svr4s and Sun SparcStation.
There seems to be many bugs in it.  The 'dogfight' and 'dactyl' simply do nothing
(After fixing a bug where a variable is defined twice in two different modules - One needed
setting to static - else the client core-dumped)
Steve
--
Extn 5543, sts@mfltd.co.uk, !uunet!mfocus!sts
+-----------------------------------+------------------------+ Micro Focus
| Just like Pariah, I have no name, |    rm -rf *            | 26 West Street
| Living in a blaze of obscurity,   |      "rum ruff splat"  | Newbury
| Need courage to survive the day.  |                        | Berkshire
+-----------------------------------+------------------------+ England
(A)bort (R)etry (I)nfluence with large hammer
From: ederveen@athena.research.ptt.nl (Ederveen D.)
Subject: Micro World Data Bank II ?
Nntp-Posting-Host: athena.research.ptt.nl
Reply-To: D.N.M.Ederveen@research.ptt.nl
Organization: PTT Research, The Netherlands
Lines: 18
I'm looking for a database called "Micro World Data Bank II", a database
with digital map information containing 178,068 latitude, longitude points.
It is said to be in the public domain. If anyone knows a place where I can
get it (preferably FTP/gopher/mailserver etc.; otherwise snail mail) please
let me know. I you have it yourself and are willing to send me the file,
drop me a line.
I'll be using it with a program called VERSAMAP by Charles H. Culberson.
If anyone knows of another detailed database that can be used with this
program (preferably PD), I would be very interested.
Replies by e-mail please, directly to me, I don't read this group regularly.
If there's interest I'll post a summary, of course.
--
Derk Ederveen                        (FidoNet 2:283/323)  tel. +31-70-3323202
D.N.M.Ederveen@research.ptt.nl / ederveen@hlsdnl5.bitnet  fax. +31-70-3326477
x400: /c=nl/admd=400net/prmd=ptt research/o=ptt research/s=ederveen/i=dnm
** "I wish I was a warrior, in every language that I speak" - Lou Reed **
From: young@is.s.u-tokyo.ac.jp (YOUNG Shio Hong)
Subject: Looking for Dr. Bala R. Vatti's email address
Nntp-Posting-Host: rabbit-gw
Organization: Dept. of Information Science, Univ. of Tokyo, Japan.
Distribution: comp.graphics
X-Bytes: 660
Lines: 27
Hi!
I am looking for the email address of the author to
"A Generic Solution to Polygon Clipping",
Communication of the ACM, July 1992, Vol. 35, No. 7.
I got information about the author as follows
Mr. Bala R. Vatti
LCEC, 65 River Road, Hudson, N.H. 03051
email: vatti@waynar.lcec.lockheed
I want to get some related and detailed papers about the
same topic from the author. But I failed to send my email
to the address. Any information is appreciated.
Thank you very much.
Best regards.
S. H. Young
Kunii Lab
Dept. of Information Science
Faculty of Science
University of Tokyo
Bunkyo-Ku, Hongo 7-3-1
113 Tokyo, Japan
email: young@is.s.u-tokyo.ac.jp
From: michael_maier@qmgate.anl.gov (Michael Maier)
Subject: Round VS Elliptical DOT Screens
Organization: ANL
Lines: 15
When using Photoshop is there anyway to get an elliptical dot for the
halftone screen rather than a round dot ? My printer would prefer an
elliptical dot, but I'm not sure how to set it up. I'm sending from a Mac
IIci to a Linotronic L300 imagesetter and I am using Photoshop 2.0.1 to
make my separations.
Any help would be greatly appreshed. T.I.A.
Michael (Unscene)
Michael Maier, Computer Artist, ANL  |  [|�]---*Z* Glued to the veiw.
Email michael_maier@qmgate.anl.gov   | "TV is the milk of Amnesia."
Phone 708 252 5298                   | � Michael Maier
From: spl@ivem.ucsd.edu (Steve Lamont)
Subject: SGI sales practices (Was: Crimson (Was: Kubota Announcement?))
Organization: University of Calif., San Diego/Microscopy and Imaging Resource
Lines: 49
NNTP-Posting-Host: ivem.ucsd.edu
In article <30523@hacgate.SCG.HAC.COM> lee@luke.rsg.hac.com (C. Lee) writes:
>The original posting complained (1) about SGI coming out with newer (and
>better) architectures and not having an upgrade path from the older ones,
>and (2) that DEC did.
No.  That's *not* what I was complaining about, nor did I intend to
suggest that DEC was any better than SGI (let me tell you about the
Lynx some day, but be prepared with a large sedative if you do...).  My
comment regarding DEC was to indicate that I might be open to other vendors
that supported OpenGL, rather than deal further with SGI.
What I *am* annoyed about is the fact that we were led to believe that
we *would* be able to upgrade to a multiprocessor version of the
Crimson without the assistance of a fork lift truck.
I'm also annoyed about being sold *several* Personal IRISes at a
previous site on the understanding *that* architecture would be around
for a while, rather than being flushed.
Now I understand that SGI is responsible to its investors and has to
keep showing a positive quarterly bottom line (odd that I found myself
pressured on at least two occasions to get the business on the books
just before the end of the quarter), but I'm just a little tired of
getting boned in the process.
Maybe it's because my lab buys SGIs in onesies and twosies, so we
aren't entitled to a "peek under the covers" as the Big Kids (NASA,
for instance) are.  This lab, and I suspect that a lot of other labs
and organizations, doesn't have a load of money to spend on computers
every year, so we can't be out buying new systems on a regular basis.
The boxes that we buy now will have to last us pretty much through the
entire grant period of five years and, in some case, beyond.  That
means that I need to buy the best piece of equipment that I can when I
have the money, not some product that was built, to paraphrase one
previous poster's words, 'to fill a niche' to compete with some other
vendor.  I'm going to be looking at this box for the next five years.
And every time I look at it, I'm going to think about SGI and how I
could have better spent my money (actually *your* money, since we're
supported almost entirely by Federal tax dollars).
Now you'll have to pardon me while I go off and hiss and fume in a
corner somewhere and think dark, libelous thoughts.
spl
--
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@szechuan.ucsd.edu
San Diego Microscopy and Imaging Resource/UC San Diego/La Jolla, CA 92093-0608
"My other car is a car, too."
- Bumper strip seen on I-805
From: cheinan@access.digex.com (Cheinan Marks)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Express Access Online Communications, Greenbelt, MD USA
Lines: 100
NNTP-Posting-Host: access.digex.net
X-Newsreader: TIN [version 1.1 PL8]
: Robert G. Carpenter writes:
: >Hi Netters,
: >
: >I'm building a CAD package and need a 3D graphics library that can handle
: >some rudimentry tasks, such as hidden line removal, shading, animation, etc.
: >
: >Can you please offer some recommendations?
: >
: >I'll also need contact info (name, address, email...) if you can find it.
: >
: >Thanks
: >
: >(Please Post Your Responses, in case others have same need)
: >
: >Bob Carpenter
: >
The following is extracted from sumex-aim.stanford.edu.  It should also be on
the mirrors.  I think there is source for some applications that may have some
bearing on your project.  Poke around the source directory.  I've never used
this package, nor do I know anyone who did, but the price is right :-)
Hope this helps.
Cheinan
Abstracts of files as of Thu Apr  1 03:11:39 PST 1993
Directory: info-mac/source
#### BINHEX     3d-grafsys-121.hqx   ****
Date: Fri, 5 Mar 93 14:13:07 +0100
From: Christian Steffen Ove Franz <cfranz@iiic.ethz.ch>
To: questions@mac.archive.umich.edu
Subject: 3d GrafSys 1.21 in incoming directory
A 3d GrafSys short description follows:
Programmers 3D GrafSys Vers 1.21 now available.
Version 1.21 is mainly a bugfix for THINK C users. THIS VERSION
NOW RUNS WITH THINK C, I PROMISE! The Docs now contain a chapter for
C programmers on how to use the GrafSys. If you have problems, feel free
to contact me.
The other change is that I removed the FastPerfTrig calls from
the FPU version to make it run faster.
Those of you who don't know what all this is about, read on.
********
Programmers 3D GrafSys -- What it is:
-------------------------------------
Didn't you always have this great game in mind where you needed some way of
drawing three-dimensional scenes?
Didn't you always want to write this program that visualized the structure
of three-dimensional molecules?
And didn't the task of writing your 3D conversions routines keep you from
actually doing it?
Well if the answer to any of the above questions is 'Yes, but what has it to
do with this package???' , read on.
GrafSys is a THINK Pascal/C library that provides you with simple routines
for building, saving, loading (as resources), and manipulating
(independent rotating around arbitrary achses, translating and scaling)
three dimensional objects. Objects, not just simple single-line drawings.
GrafSys supports full 3D clipping, animation and some (primitive) hidden-
line/hidden-surface drawing with simple commands from within YOUR PROGRAM.
GrafSys also supports full eye control with both perspective and parallel
projections (If you can't understand a word, don't worry, this is just showing
off for those who know about it. The docs that come with it will try to explain
what it all means later on).
GrafSys provides a powerful interface to supply your own drawing routines with
data so you can use GrafSys to do the 3D transformations and your own routines
to do the actual drawing. (Note that GrafSys also provides drawing routines so
you don't have to worry about that if you don't want to)
GrafSys 1.11 comes in two versions. One for the 881 and 020 or above
processors. The other version uses fixed-point arithmetic and runs on any Mac.
Both versions are *100% source compatibel*.
GrafSys comes with an extensive manual that teaches you the fundamentals of 3D
graphics and how to use the package.
If demand is big enough I will convert the GrafSys to an object-class library.
However, I feelt that the way it is implemented now makes it easier to use for
a lot more people than the select 'OOP-Guild'.
GrafSys is free for any non-commercial usage. Read the documentation enclosed.
Enjoy,
Christian Franz
From: Peter.vanderveen@visser.el.wau.nl  (Peter van der Veen)
Subject: Re: Fonts in POV??
Lines: 30
Organization: Wageningen Agricultural University
X-Newsreader: FTPNuz (DOS) v1.0
In Article <1qg9fc$et9@wampyr.cc.uow.edu.au> "g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad)" says:
>
>
> 	I have seen several ray-traced scenes (from MTV or was it
> RayShade??) with stroked fonts appearing as objects in the image.
> The fonts/chars had color, depth and even textures associated with
> them.  Now I was wondering, is it possible to do the same in POV??
>
>
> Thanks,
>
> Noel
>
Yes, there are serveral programs which can convert font files (eq the Borland
fonts) to objects consisting of spheres, cones etc.
I've used a program (forgot its name/place, but i can look for it) which
converted these Borland fonts to three different raytracers. Vivid, POV and
Polyray (which i like more (more flexibel/faster/use of expressions etc).
The program has a lot nice features.
So if interested give me a mail.
/*---------*\*/*-------------------------------------------*\
*|  ____/|  *|*    PETER.VANDERVEEN@VISSER.EL.WAU.NL       |*
*|  \ o.O|  *|*    Department of Genetics                  |*
*|   =(_)=  *|*    Agricultural University                 |*
*|     U    *|*    Wageningen, The Netherlands             |*
\*---------*/*\*-------------------------------------------*/
From: Geoffrey_Hansen@mindlink.bc.ca (Geoffrey Hansen)
Subject: Re: VESA on the Speedstar 24
Organization: MIND LINK! - British Columbia, Canada
Lines: 12
Using the VMODE command, all you need to do is type VMODE VESA at the dos
prompt. VMODE is included with the Speedstar 24.  I have used the VESA mode
for autodesk animator pro.
--
<=================================================|
|     geoffrey_hansen@mindlink.bc.ca    |
|=================================================>
"Inumerable confusions and a feeling of despair invariably emerge
in periods of great technological and cultural transition."
Marshall McLuhan
From: ruocco@ghost.dsi.unimi.it (sergio ruocco)
Subject: Re: HOT NEW 3D Software
Keywords: Imagine,3d
Organization: Computer Science Dep. - Milan University
Lines: 26
I don't have nor Imagine nor Real 3d, but as old
Amiga user I think you should take a look also to
Real 3d 2.0 for the Amiga. I saw Imagine 2.0 on the
Amiga for a long time at my friend's home, and
I've seen R3D 2.0 in action at Bit.Movie 93 in Riccione,
Italy (an Italian Computer Graphics Contest).
Many professionals using 3d Studio on PC, SoftImage
for Silicon Graphics and Imagine on the Amiga were
*VERY IMPRESSED* by the power of this programs.
Sorry, I've lost the posting with full description
of features of this great program.
For more informations give a look in comp.sys.amiga.graphics.
Representative of Activa International told me that
it will be out in 2 weeks for the Amiga and that
PC MS-Windows, Silicon Indigo and Unix version are
under development.
Ciao,
Sergio
--
Sergio Ruocco - ruocco@ghost.sm.dsi.unimi.it
Via Di Vittorio, 4
I-20019 Settimo Milanese Milano
Phone: 0039-2-3283896
From: george@ccmail.larc.nasa.gov (George M. Brown)
Subject: Re: PCX
Organization: Client Specific Systems, Inc.
Lines: 41
NNTP-Posting-Host: thrasher.larc.nasa.gov
In article <1993Apr14.220100.17867@freenet.carleton.ca> ad994@Freenet.carleton.ca (Jason Wiggle) writes:
>From: ad994@Freenet.carleton.ca (Jason Wiggle)
>Subject: PCX
>Date: Wed, 14 Apr 1993 22:01:00 GMT
>
>Hello
>	HELP!!! please
>		I am a student of turbo c++ and graphics programming
>	and I am having some problems finding algorithms and code
>	to teach me how to do some stuff..
>
>	1) Where is there a book or code that will teach me how
>	to read and write pcx,dbf,and gif files?
>
>	2) How do I access the extra ram on my paradise video board
>	so I can do paging in the higher vga modes ie: 320x200x256
>	800x600x256
>	3) anybody got a line on a good book to help answer these question?
>
>Thanks very much !
>
>send reply's to : Palm@snycanva.bitnet
>
>Peace be
>Blessed be
>Stephen Palm
A book that I can somewhat recommend is :
Pratical Image Processing in C
by Craig A. Lindley
published by Wiley
It addresses reading/writing to/from PCX/TIFF files; image acquisition,
manipulation and storage; and has source code in the book. The source is
primarily written in Turbo C and naturally has conversion possibilities. I
have converted some of it to Quick C. Naturally, the code has some problems
in the book - as usuall. Typos, syntax, etc. are problems. It can be a good
learning experience for someone who is studying C. There is also a companion
disk with source available for order and $50.00. Overall, the book is not
bad. I acquired the book at WaldenSoftware.
From: rschmitt@shearson.com (Robert Schmitt)
Subject: Re: Please Recommend 3D Graphics Library F
Reply-To: rschmitt@shearson.com
Organization: Lehman Brothers, Inc.
Lines: 9
What hardware do plan to run on?  Workstation or PC?  Cost level?
Run-time licensing needs?
Bob
------------------------------------------------------------------
Robert A. Schmitt | Applied Derivatives Technology | Lehman Brothers
rschmitt@shearson.com
From: weber@sipi.usc.edu (Allan G. Weber)
Subject: Need help with Mitsubishi P78U image printer
Organization: University of Southern California, Los Angeles, CA
Lines: 26
Distribution: na
NNTP-Posting-Host: sipi.usc.edu
Our group recently bought a Mitsubishi P78U video printer and I could use some
help with it.  We bought this thing because it (1) has a parallel data input in
addition to the usual video signal inputs and (2) claimed to print 256 gray
level images.  However, the manual that came with it only describes how to
format the parallel data to print 1 and 4 bit/pixel images.  After some initial
problems with the parallel interface I now have this thing running from a
parallel port of an Hewlett-Packard workstation and I can print 1 and 4
bit/pixel images just fine.  I called the Mitsubishi people and asked about the
256 level claim and they said that was only available when used with the video
signal inputs.  This was not mentioned in the sales literature.  However they
did say the P78U can do 6 bit/pixel (64 level) images in parallel mode, but
they didn't have any information about how to program it to do so, and they
would call Japan, etc.
Frankly, I find it hard to believe that if this thing can do 8 bit/pixel images
from the video source, it can't store 8 bits/pixel in the memory.  It's not
like memory is that expensive any more.  If anybody has any information on
getting 6 bit/pixel (or even 8 bit/pixel) images out of this thing, I would
greatly appreciate your sending it to me.
Thanks.
Allan Weber
Signal & Image Processing Institute
University of Southern California
weber@sipi.usc.edu
From: renggli@masg1.epfl.ch (loris renggli)
Subject: Need graph display/edit
Organization: Math. Dept., Swiss Institute of Technology
Lines: 17
I am looking for a program that is capable of displaying a graph
with nodes and links and with the possibility to edit interactively
the graph : add one node, change one link etc...
Actually, a very _simple_ X11 program would be ok; all I need is to
put some "boxes" (i.e. the nodes ) on a pane and be able to
manipulate them with the mouse (move, add or delete boxes).
Does anyone know if such program is available ?
Thanks for any help !!
------------------------------------------------------------------------
Loris RENGGLI                          phone  : +41-21-6934230
Swiss Federal Institute of Technology  fax    : +41-21-6934303
Math. Dept
CH-1015 Lausanne (Switzerland)         e-mail : renggli@masg1.epfl.ch
From: Sean McMains <mcmains@unt.edu>
Subject: Re: Rumours about 3DO ???
X-Xxmessage-Id: <A7F2FC4E8B01023C@seanmac.acs.unt.edu>
X-Xxdate: Thu, 15 Apr 93 17: 49:34 GMT
Organization: University of North Texas
X-Useragent: Nuntius v1.1.1d20
Lines: 23
In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
Muchado, ricardo@rchland.vnet.ibm.com writes:
>   And CD-I's CPU doesn't help much either.  I understand it is
>a 68070 (supposedly a variation of a 68000/68010) running at something
>like 7Mhz.  With this speed, you *truly* need sprites.
Wow! A 68070! I'd be very interested to get my hands on one of these,
especially considering the fact that Motorola has not yet released the
68060, which is supposedly the next in the 680x0 lineup. 8-D
Ricardo, the animation playback to which Lawrence was referring in an
earlier post is plain old Quicktime 1.5 with the Compact Video codec.
I've seen digitized video (some of Apple's early commercials, to be
precise) running on a Centris 650 at about 30fps very nicely (16-bit
color depth). I would expect that using the same algorithm, a RISC
processor should be able to approach full-screen full-motion animation,
though as you've implied, the processor will be taxed more with highly
dynamic material.
========================================================================
Sean McMains              | Check out the Gopher    | Phone:817.565.2039
University of North Texas | New Bands Info server   | Fax  :817.565.4060
P.O. Box 13495            | at seanmac.acs.unt.edu  | E-Mail:
Denton TX 76203           |                         |  McMains@unt.edu
Subject: XGA-2 info?
From: rleberle@sparc2.cstp.umkc.edu (Rainer Leberle)
Distribution: World
Organization: University of Missouri Kansas City
NNTP-Posting-Host: sparc2.cstp.umkc.edu
Lines: 13
Hi,
has anyone more info about the XGA-2 chipset?
HW-funcs, TrueColor, Resolutions,...
Any boards with XGA-2 out yet?
thanks
Rainer
--
Rainer Leberle	                           rleberle@sparc2.cstp.umkc.edu
University of Kansas City, MO
>> New mail from clinton@whitehouse.dc.gov - (No Subject Specified)
From: highlndr@ux1.cso.uiuc.edu (The Highlander)
Subject: Re: TIFF: philosophical significance of 42
Organization: University of Illinois at Urbana
Lines: 23
cptully@med.unc.edu (Christopher P. Tully,Pathology,62699) writes:
>Why so up tight?  FOr that matter, TIFF6 is out now, so why not gripe
>about its problems?  Also, if its so important to you, volunteer to
>help define or critique the spec.
HEAR HEAR!!!
>Finally, a little numerology:  42 is 24 backwards, and TIFF is a 24 bit
>image format...
REALLY? i thought that the reason it was 42 was that it is REALLY 24, but
written as 42 so that on Intel chips you could get the proper value :)
-pete
help stomp out the endian wars... break some eggs on their sides!
--
Peter Mueller (TheBishop)          | When a person commits a violation and sins
highlndr@ux1.cso.uiuc.edu          | unintentionally in regard to any of the
pmueller@mrcnext.cso.uiuc.edu      | Lord's holy things, he is to bring to the
| Lord as a penalty, a ram from the flock...
From: mogal@deadhead.asd.sgi.com (Joshua Mogal)
Subject: Re: SGI sales practices (Was: Crimson (Was: Kubota Announcement?))
Organization: Silicon Graphics, Inc.
Lines: 123
NNTP-Posting-Host: deadhead.asd.sgi.com
|> My
|> comment regarding DEC was to indicate that I might be open to other
|> vendors
|> that supported OpenGL, rather than deal further with SGI.
OpenGL is a graphics programming library and as such is a great, portable
interface for the development of interactive 3D graphics applications. It
is not, however, an indicator of performance, as that will vary strongly
from machine to machine and vendor to vendor.  SGI is committed to high
performance interactive graphics systems and software tools, so OpenGL
means that you can port easily from SGI to other platforms, there is no
guarantee that your performance would be comparable.
|>
|> What I *am* annoyed about is the fact that we were led to believe that
|> we *would* be able to upgrade to a multiprocessor version of the
|> Crimson without the assistance of a fork lift truck.
If your sales representative truly mislead you, then you should have a
valid grievance against us which you should carry up to your local SGI
sales management team. Feel free to contact the local branch manager...we
understand that repeat sales come from satisfied customers, so give it a
shot.
|>
|> I'm also annoyed about being sold *several* Personal IRISes at a
|> previous site on the understanding *that* architecture would be around
|> for a while, rather than being flushed.
As one of the previous posts stated, the Personal IRIS was introduced in
1988 and grew to include the 4D/20, 4D/25, 4D/30 and 4D/35 as clock rates
sped up over time. As a rule of thumb, SGI platforms live for about 4-5
years. This was true of the motorola-based 3000 series ('85-'89), the PI
('88-'93), the Professional Series (the early 4D's - '86-'90), the Power
Series parallel systems ('88-'93). Individual CPU subsystems running at a
particular clock rate usually live for about 2 years. New graphics
architectures at the high end (GT, VGX, RealityEngine) are released every
18 months to 2 years.
These are the facts of life.  If we look at these machines, they become
almost archaic after four years, and we have to come out with a new
platform (like Indigo, Onyx, Challenge) which has higher bus bandwidths,
faster CPUs, faster graphics and I/O, and larger disk capacities. If we
don't, we become uncompetitive.
From the user perspective, you have to buy a machine that meets your
current needs and makes economic sense today.  You can't wait to buy, but
if you need a guaranteed upgrade path for the machine, ask the Sales Rep
for one in writing. If it's feasible, they should be able to do that. Some
of our upgrade paths have specific programs associated with them, such as
the Performance Protection Program for older R3000-based Power Series
multiprocessing systems which allowed purchasers of those systems to obtain
a guaranteed upgrade price for moving to the new Onyx or Challenge
R4400-based 64-bit multiprocessor systems.
|>
|> Now I understand that SGI is responsible to its investors and has to
|> keep showing a positive quarterly bottom line (odd that I found myself
|> pressured on at least two occasions to get the business on the books
|> just before the end of the quarter), but I'm just a little tired of
|> getting boned in the process.
|>
If that's happening, it's becausing of misunderstandings or
mis-communication, not because SGI is directly attempting to annoy our
customer base.
|> Maybe it's because my lab buys SGIs in onesies and twosies, so we
|> aren't entitled to a "peek under the covers" as the Big Kids (NASA,
|> for instance) are.  This lab, and I suspect that a lot of other labs
|> and organizations, doesn't have a load of money to spend on computers
|> every year, so we can't be out buying new systems on a regular basis.
Most SGI customers are onesy-twosey types, but regardless, we rarely give a
great deal of notice when we are about to introduce a new system because
again, like a previous post stated, if we pre-announced and the schedule
slipped, we would mess up our potential customers schedules (when they were
counting on the availability of the new systems on a particular date) and
would also look awfully bad to both our investors and the financial
analysts who watch us most carefully to see if we are meeting our
commitments.
|> The boxes that we buy now will have to last us pretty much through the
|> entire grant period of five years and, in some case, beyond. That
|> means that I need to buy the best piece of equipment that I can when I
|> have the money, not some product that was built, to paraphrase one
|> previous poster's words, 'to fill a niche' to compete with some other
|> vendor.  I'm going to be looking at this box for the next five years.
|> And every time I look at it, I'm going to think about SGI and how I
|> could have better spent my money (actually *your* money, since we're
|> supported almost entirely by Federal tax dollars).
|>
Five years is an awfully long time in computer years. New processor
technologies are arriving every 1-2 years, making a 5 year old computer at
least 2 and probably 3 generations behind the times. The competitive nature
of the market is demanding that rate of development, so if your timing is
really 5 years between purchases, you have to accept the limited viability
of whatever architecture you buy into from any vendor.
There are some realities about the computer biz that we all have to live
with, but keeping customers happy is the most important, so don't give up,
we know it.
Josh   |:-)
--
**************************************************************************
**				     **					**
**	Joshua Mogal		     **	Product Manager			**
**	Advanced Graphics Division   **	  Advanced Graphics Systems	**
**	Silicon Graphics Inc.	     **	Market Manager			**
**	2011 North Shoreline Blvd.   **	  Virtual Reality		**
**	Mountain View, CA 94039-7311 **	  Interactive Entertainment	**
**	M/S 9L-580		     **					**
**				     *************************************
**	Tel:	(415) 390-1460						**
**	Fax:	(415) 964-8671						**
**	E-mail:	mogal@sgi.com						**
**									**
**************************************************************************
Subject: Rendering Software for Multi-processor Computer S
From: wcarter@trident.datasys.swri.edu (William Carter)
Organization: Southwest Research Institute
Lines: 13
Hello,
I am searching for rendering software which has been developed
to specifically take advantage of multi-processor computer systems.
Any pointers to such software would be greatly appreciated.
Thanks.
--
Billy Carter, Software Engineering Section
Southwest Research Institute
wcarter@swri.edu
From: lvandyke@balboa.eng.uci.edu (Lee Van Dyke)
Subject: Wanted: map of the world type gifs
Nntp-Posting-Host: balboa.eng.uci.edu
Organization: University of California, Irvine
Lines: 11
Hi, can anyone direct me to map type gifs?
I am interesting in cartography and would find
these gifs useful.
tia,
--
Lee Van Dyke
lvandyke@balboa.eng.uci.edu,
UUCP: infotec!Infotec.COM!lee@sunkist.West.Sun.COM
From: dkennett@fraser.sfu.ca (Daniel Kennett)
Subject: [POV] Having trouble bump mapping a gif to a sphere
Summary: Having trouble bump mapping a gif to a spher in POVray
Keywords: bump map
Organization: Simon Fraser University, Burnaby, B.C., Canada
Lines: 44
Hello,
I've been trying to bump map a gif onto a sphere for a while and I
can't seem to get it to work.  Image mapping works, but not bump
mapping.  Here's a simple file I was working with, could some kind
soul tell me whats wrong with this.....
#include "colors.inc"
#include "shapes.inc"
#include "textures.inc"
camera {
location  <0 1 -3>
direction <0 0 1.5>
up        <0 1 0>
right     <1.33 0 0>
look_at   <0 1 2>
}
object { light_source { <2 4 -3> color White }
}
object {
sphere { <0 1 2> 1 }
texture {
bump_map { 1 <0 1 2> gif "surf.gif"}
}
}
NOTE: surf.gif is a plasma fractal from Fractint that is using the
landscape palette map.
Thanks in advance
-Daniel-
*======================================================================*
| Daniel Kennett	 		                               |
| dkennett@sfu.ca          		   			       |
| "Our minds are finite, and yet even in those circumstances of        |
|  finitude, we are surrounded by possibilities that are infinite, and |
|  the purpose of human life is to grasp as much as we can out of that |
|  infinitude." - Alfred North Whitehead                               |
*======================================================================*
From: talluri@osage.csc.ti.com (Raj Talluri)
Subject: Point of intersection of n lines
Keywords: robust statistics
Nntp-Posting-Host: osage
Organization: Texas Instruments
Lines: 21
Hi,
Can anybody suggest robust algorithms/code for computing the point of intersection
on n, 2-d lines in a plane. The data has outliers and hence a simple least squares
technique does not seem to provide satifactory results.
Please respond by e-mail and I will post the summary to the newsgroups
if there is sufficient interest.
Thanks,
Raj Talluri
Member Technical Staff
Image Understanding Branch
Texas Instruments
Central Research Labs
Dallas, Texas 75248
talluri@csc.ti.com
From: lusardi@cs.buffalo.edu (Christopher Lusardi)
Subject: Program Included: 2 Edge Detection Algorithms!
Article-I.D.: acsu.C5JqM6.HLG
Organization: State University of New York at Buffalo/Comp Sci
Lines: 142
Nntp-Posting-Host: hadar.cs.buffalo.edu
/*
This program doesn't detect edges with compass operators and a laplacian
operator. It should output 2 raw grey-scale images with edges. The output
doesn't look like edges at all.
In novicee terms, how do I correct the errors? Any improvements are welcome.
(I'll even accept your corrected code.)
(If I convolve the INPUT.IMAGE with a digital gaussian [7 by 7] to remove
noise, will I get an improvement with the laplacian.)
--------------------------2 types of edge detection-------------------------*/
#include <stdio.h>
#include <math.h>
#define IMAGEWIDTH 300
#define IMAGEHEIGHT 300
unsigned char Input_Image [IMAGEHEIGHT][IMAGEWIDTH];
unsigned char Angles_Wanted [IMAGEHEIGHT][IMAGEWIDTH];
unsigned char Magnitude_Image [IMAGEHEIGHT][IMAGEWIDTH];
int Laplace_Op1 [3][3] = { 0,-1, 0, -1,4,-1,  0,-1, 0};
int Compass_Op1 [3][3] = { 1, 1, 1,  0,0, 0, -1,-1,-1};
int Compass_Op2 [3][3] = { 1, 1, 0,  1,0,-1,  0,-1,-1};
int Compass_Op3 [3][3] = { 1, 0,-1,  1,0,-1,  1, 0,-1};
int Compass_Op4 [3][3] = { 0,-1,-1,  1,0,-1,  1, 1, 0};
int Compass_Op5 [3][3] = {-1,-1,-1,  0,0, 0,  1, 1, 1};
int Compass_Op6 [3][3] = {-1,-1, 0, -1,0, 1,  0, 1, 1};
int Compass_Op7 [3][3] = {-1, 0, 1, -1,0, 1, -1, 0, 1};
int Compass_Op8 [3][3] = { 0, 1, 1, -1,0, 1, -1,-1, 0};
void Compass (row,col)
int row,col;
{
int value;
int op_rows, op_cols;
int Compass1,Compass2,Compass3,Compass4;
int Compass5,Compass6,Compass7,Compass8;
Compass1 = Compass2 = Compass3 = Compass4 = 0;
Compass5 = Compass6 = Compass7 = Compass8 = 0;
for (op_rows = -1; op_rows < 2; op_rows++)
for (op_cols = -1; op_cols < 2; op_cols++)
{
if (((row + op_rows) >= 0) && ((col + op_cols) >= 0))
{
Compass1 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op1 [op_rows + 1][op_cols + 1];
Compass2 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op2 [op_rows + 1][op_cols + 1];
Compass3 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op3 [op_rows + 1][op_cols + 1];
Compass4 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op4 [op_rows + 1][op_cols + 1];
Compass5 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op5 [op_rows + 1][op_cols + 1];
Compass6 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op6 [op_rows + 1][op_cols + 1];
Compass7 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op7 [op_rows + 1][op_cols + 1];
Compass8 += ((int) Input_Image [row + op_rows][col + op_cols]) *
Compass_Op8 [op_rows + 1][op_cols + 1];
}
}
if (Compass1 < Compass2)
value = Compass2;
else
value = Compass1;
if (value < Compass3)
value = Compass3;
if (value < Compass4)
value = Compass4;
if (value < Compass5)
value = Compass5;
if (value < Compass6)
value = Compass6;
if (value < Compass7)
value = Compass7;
if (value < Compass8)
value = Compass8;
Magnitude_Image [row][col] = (char) value;
}
void Laplace1 (row,col)
int row,col;
{
int op_rows, op_cols;
Magnitude_Image [row][col] = 0;
for (op_rows = -1; op_rows < 2; op_rows++)
for (op_cols = -1; op_cols < 2; op_cols++)
if (((row + op_rows) >= 0) && ((col + op_cols) >= 0))
Magnitude_Image [row][col] =
(char) ((int)Magnitude_Image [row][col] +
((int) Input_Image [row + op_rows][col + op_cols] *
Laplace_Op1 [op_rows + 1][op_cols + 1]));
}
main  ()
{
FILE *Original_Image_fp;
FILE *Laplace1_mag_fp,*Laplace2_mag_fp,*Laplace3_mag_fp;
FILE *Compass_mag_fp;
int row, col, Algo_Count;
Original_Image_fp = fopen ("INPUT.IMAGE","rb");
Laplace1_mag_fp = fopen ("Laplace1_Magnitude","wb");
Compass_mag_fp = fopen ("Compass_Magnitude","wb");
fread ((unsigned char *) Input_Image,sizeof(unsigned char),IMAGEHEIGHT * IMAGEWIDTH,Original_Image_fp);
for (Algo_Count = 0; Algo_Count < 2;Algo_Count ++)
{
for (row = 0; row < IMAGEHEIGHT; row++)
for (col = 0; col < IMAGEWIDTH; col++)
if (!Algo_Count)
Laplace1 (row,col);
else
Compass (row,col);
if (!Algo_Count)
fwrite(Magnitude_Image,sizeof(char),IMAGEHEIGHT * IMAGEWIDTH,Laplace1_mag_fp);
else
fwrite(Magnitude_Image,sizeof(char),IMAGEHEIGHT * IMAGEWIDTH,Compass_mag_fp);
}
}
--
|  .-,                ###|For a lot of .au music: ftp sounds.sdsu.edu
| /   /   __  ,  _    ###|then cat file.au > /dev/audio
| \_>/ >_/ (_/\_/<>_     |UB library catalog:telnet bison.acsu.buffalo.edu
|_                14261 _|(When in doubt ask: xarchie, xgopher, or xwais.)
From: robert@cpuserver.acsc.com (Robert Grant)
Subject: Re: Virtual Reality for X on the CHEAP!
Organization: USCACSC, Los Angeles
Lines: 32
Distribution: world
Reply-To: robert@cpuserver.acsc.com (Robert Grant)
NNTP-Posting-Host: cpuserver.acsc.com
Hi Steve,
As the author of Multiverse, I feel I had better respond to your
mailnote questioning whether anyone had managed to compile this
software - the quick answer is yes! The long answer is yes - but a
few have had a few problems with their platforms - not all unix's are
the same, you know! As far as "many bugs" go, it would probably be more
useful to everyone (including you) if you were a bit more explicit! :-)
Platforms it has succesfully compiled and run on are: RS6000, Dec Ultrix
Sun Solaris so it is possible.
The main problem is that I don't have access to other platforms than the
RS6000, so if there are portability problems then the only way I hear
about them is by people letting me know and giving me a clue as to
how to fix it.
As far as the software not doing anything, do you really think I would
bother releasing it, if that was the case? Perhaps you didn't read the
few docs that ARE supplied. The dogfight world is made up of clients
only, so if you're in there on your own, then you're not going to see
anything! The dactyl world has quite a lot of scenary - so if you don't
see anything there, then this is definitely a problem!
One final word - if you're not interested, don't bother with it.
If you are interested, then please remember that I'm not asking for
any money! So why not try a little patience and constructive criticism,
maybe that will get results??
Robert.
robert@acsc.com
Organization: City University of New York
From: <NT3QC@CUNYVM.BITNET>
Subject: RE: Hot new 3D software
Lines: 16
I don't think speed has been determined, since it has never run on Intel chips.
But on the Amiga's Motorola Chips, it was one of the fastest true 'Ray Tracers'
I don't think Impulse would port it over and not take speed into consideration.
In terms of features, and learning curve... ALL that you stated for 3DS is also
true for Imagine, and lots more... But I'll have to admit that after 3 years of
use on the Amiga, the learning curve is very steep. This is due ONLY to the
manual. It is realy BAD. However, there is a lot of after market support for
this product, including regular 'Tips' articles in many magazines such as "AVID
and a great book by Steve Worley called "Understanding Imagine 2.0" This book i
is not just recommened, IT IS A MUST!
I think an important consideration should be price......
$3000 for 3DS (Not including "tool" packages)
Under $500 for Imagine complete.
From: spencer@med.umich.edu (Spencer W. Thomas)
Subject: Re: cylinder and ray
Organization: University of Michigan HSITN
Lines: 17
NNTP-Posting-Host: guraldi.itn.med.umich.edu
In-reply-to: katkere@krusty.eecs.umich.edu's message of Thu, 15 Apr 1993 04:04:23 GMT
Sketch:  Rotate so cylinder axis is || Z axis.
Intersect X/Y projection of line with projected cylinder (similar to,
but easier than, sphere intersection).  Result: no intersection, one
intersection, or two intersections, parameterized along line by t0 and
t1.  Now look at Z, and compute intersections of line with top and
bottom planes of cylinder.  This gives t0' and t1'.  The interval of
intersection is then the bit of the line from [t0,t1] INTERSECT [t0',t1'].
Details left as an exercise for the reader.
=S
--
=Spencer W. Thomas 		|  Info Tech and Networking, B1911 CFOB, 0704
"Genome Informatician"	|  Univ of Michigan, Ann Arbor, MI 48109
Spencer.W.Thomas@med.umich.edu	|  313-764-8065, FAX 313-764-4133
From: bolson@carson.u.washington.edu (Edward Bolson)
Subject: Sphere from 4 points?
Organization: University of Washington, Seattle
Lines: 18
Distribution: world
NNTP-Posting-Host: carson.u.washington.edu
Boy, this will be embarassing if it is trivial or an FAQ:
Given 4 points (non coplanar), how does one find the sphere, that is,
center and radius, exactly fitting those points?  I know how to do it
for a circle (from 3 points), but do not immediately see a
straightforward way to do it in 3-D.  I have checked some
geometry books, Graphics Gems, and Farin, but am still at a loss?
Please have mercy on me and provide the solution?
Thanks,
Ed
--
Ed Bolson
University of Washington  Cardiovascular Research               (206)543-4535
bolson@u.washington.edu (preferred)
bolson@max.bitnet                bolson@milton.u.washington.edu (if you must)
Subject: [ANNOUNCE] Ivan Sutherland to speak at Harvard
From: eekim@husc11.harvard.edu (Eugene Kim)
Distribution: harvard
Organization: Harvard University Science Center
Nntp-Posting-Host: husc11.harvard.edu
Lines: 21
The Harvard Computer Society is pleased to announce its third lecture of
the spring.  Ivan Sutherland, the father of computer graphics and an
innovator in microprocessing, will be speaking at Harvard University on
Tuesday, April 20, 1993, at 4:00 pm in Aiken Computations building, room
101.  The title of his talk is "Logical Effort and the Conflict over the
Control of Information."
Cookies and tea will be served at 3:30 pm in the Aiken Lobby.  Admissions
is free, and all are welcome.
Aiken is located north of the Science Center near the Law School.
For more information, send e-mail to eekim@husc.harvard.edu.
The lecture will be videotaped, and a tape will be made available.
Thanks.
--
Eugene Kim '96                     |   "Give me a place to stand, and I will
INTERNET: eekim@husc.harvard.edu   |    move the earth."        --Archimedes
From: ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles)
Subject: windows imagine??!!
Organization: Oak Ridge National Laboratory
X-Newsreader: TIN [version 1.1 PL9]
Lines: 10
Has ANYONE who has ordered the new PC version of Imagine ACTUALLY recieved
it yet?   I'm just about ready to order but reading posts about people still
awaiting delivery are making me a little paranoid.  Has anyone actually
held this piece of software in their own hands?
Later,
Jim Nobles
From: morley@suncad.camosun.bc.ca (Mark Morley)
Subject: VGA Mode 13h Routines Available
Nntp-Posting-Host: suncad.camosun.bc.ca
Organization: Camosun College, Victoria B.C, Canada
X-Newsreader: Tin 1.1 PL4
Lines: 31
Hi there,
I've made a VGA mode 13h graphics library available via FTP.  I originally
wrote the routines as a kind of exercise for myself, but perhaps someone
here will find them useful.  They are certainly useable as they are, but
are missing some higher-level functionality.  They're intended more as an
intro to mode 13h programming, a starting point.
*** The library assumes a 386 processor, but it is trivial to modify it
*** for a 286.  If enough people ask, I'll make the mods and re-post it as a
*** different version.
The routines are written in assembly (TASM) and are callable from C.  They
are fairly simple, but I've found them to be very fast (for my purposes,
anyway).  Routines are included to enter and exit mode 13h, define a
"virtual screen", put and get pixels, put a pixmap (rectangular image with
no transparent spots), put a sprite (image with see-thru areas), copy
areas of the virtual screen into video memory, etc.  I've also included a
simple C routine to draw a line, as well as a C routine to load a 256
color GIF image into a buffer.  I also wrote a quick'n'dirty(tm) demo program
that bounces a bunch of sprites around behind three "windows".
The whole package is available on spang.camosun.bc.ca in /pub/dos/vgl.zip
It is zipped with pkzip 2.04g
It is completely in the public domain, as far as I'm concerned.  Do with
it whatever you like.  However, it'd be nice to get credit where it's due,
and maybe an e-mail telling me you like it (if you don't like it don't bother)
Mark
morley@camosun.bc.ca
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Boeing
Lines: 9
I searched the U Mich archives fairly thoroughly for 3D graphics packages,
I always thought it to be a mirror of sumex-aim.stanford.edu... I was wrong.
I'll look into GrafSys... it does sound interesting!
Thanks Cheinan.
BobC
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Re: Please Recommend 3D Graphics Library F
Organization: Boeing
Lines: 13
Sorry about not mentioning platform... my original post was to mac.programmer,
and then decided to post here to comp.graphics.
I'd like the 3D software to run on primarily Mac in either C, Object Pascal
(Think or MPW). But, I'll port to Windows later, so a package that runs on
Mac and has a Windows version would be ideal.
I'm looking for a package that has low upfront costs, and reasonable licensing
costs... of course :)
BobC
From: steve@hcrlgw (Steven Collins)
Subject: Re: Sphere from 4 points?
Organization: Central Research Lab. Hitachi, Ltd.
Lines: 27
Nntp-Posting-Host: hcrlgw
In article <1qkgbuINNs9n@shelley.u.washington.edu> bolson@carson.u.washington.edu (Edward Bolson) writes:
>Boy, this will be embarassing if it is trivial or an FAQ:
>
>Given 4 points (non coplanar), how does one find the sphere, that is,
>center and radius, exactly fitting those points?  I know how to do it
>for a circle (from 3 points), but do not immediately see a
>straightforward way to do it in 3-D.  I have checked some
>geometry books, Graphics Gems, and Farin, but am still at a loss?
>Please have mercy on me and provide the solution?
Wouldn't this require a hyper-sphere.  In 3-space, 4 points over specifies
a sphere as far as I can see.  Unless that is you can prove that a point
exists in 3-space that is equi-distant from the 4 points, and this may not
necessarily happen.
Correct me if I'm wrong (which I quite possibly am!)
steve
---
--
+---------------------------------------+--------------------------------+
| Steven Collins			| email: steve@crl.hitachi.co.jp |
| Visiting Computer Graphics Researcher	| phone: (0423)-23-1111 	 |
| Hitachi Central Research Lab. Tokyo.	| fax:   (0423)-27-7742		 |
From: spworley@netcom.com (Steve Worley)
Subject: Re: Sphere from 4 points?
Organization: NETCOM On-line Communication Services (408 241-9760 guest)
Lines: 38
bolson@carson.u.washington.edu (Edward Bolson) writes:
>Boy, this will be embarassing if it is trivial or an FAQ:
>Given 4 points (non coplanar), how does one find the sphere, that is,
>center and radius, exactly fitting those points?  I know how to do it
>for a circle (from 3 points), but do not immediately see a
>straightforward way to do it in 3-D.  I have checked some
>geometry books, Graphics Gems, and Farin, but am still at a loss?
>Please have mercy on me and provide the solution?
It's not a bad question: I don't have any refs that list this algorithm
either. But thinking about it a bit, it shouldn't be too hard.
1) Take three of the points and find the plane they define as well as
the circle that they lie on (you say you have this algorithm already)
2) Find the center  of this circle. The line passing through this center
perpendicular to the plane of the three points passes through the center of
the sphere.
3) Repeat with the unused point and two of the original points. This
gives you two different lines that both pass through the sphere's
origin. Their interection is the center of the sphere.
4) the radius is easy to compute, it's just the distance from the center to
any of the original points.
I'll leave the math to you, but this is a workable algorithm. :-)
An alternate method would be to take pairs of points: the plane formed
by the perpendicular bisector of each line segment pair also contains the
center of the sphere. Three pairs will form three planes, intersecting
at a point. This might be easier to implement.
-Steve
spworley@netcom.com
From: HURH@FNAL.FNAL.GOV (Patrick Hurh)
Subject: Rayshade to DXF,RIB,etc.. (Strata)?
Organization: FNAL
Lines: 30
Distribution: world
NNTP-Posting-Host: adnet13.fnal.gov
I'm a mac user who wants to use some of the rayshade models I've built
using macrayshade (rayshade-M) with Stratavision 3d.  Since Stratavision
can import many different model files I thought this would be a cinch...
but I haven't been able to find a simple translator that will work on the
mac.  Any ideas?
Stratavision 3d should be able to import:
DXF
MiniCAD
Super 3d
Swivel 3d professional
out of the box and:
RIB
IGS
with externals.
Also, if anyone knows of any other translator externals available for
Stratavision 3d (esp. Rayshade!) please e-mail me!
BTW, I'm going to send mail to the rayshade usrs mailing list tomorrow (I
misplaced the address) but since most users of rayshade do not seem to
operate with macs, I'm not getting my hopes up...
thanks in advance,
--patrick.                hurh@fnal.fnal.gov
From: dkusswur@falcon.depaul.edu (Daniel C. Kusswurm)
Subject: Siggraph 1987 Course Notes
Nntp-Posting-Host: falcon.depaul.edu
Organization: DePaul University, Chicago
Distribution: usa
Lines: 7
I am looking for a copy of the following Siggraph publication: Gomez, J.E.
"Comments on Event Driven Annimation," Siggraph Course Notes, 10, 1987.
If anyone knows of a location where I can obtain a copy of these notes, I
would appreciate if they could let me know.  Thanks.
dkusswur@falcon.depaul.edu
From: bbs.mirage@tsoft.net (Jerry Lee)
Subject: Cobra 2.0 1-b-1 Video card HELP ME!!!!
Organization: The TSoft BBS and Public Access Unix, +1 415 969 8238
Lines: 22
Does ANYONE out there in Net-land have any information on the Cobra 2.20
card?  The sticker on the end of the card reads
Model: Cobra 1-B-1
Bios:  Cobra v2.20
I Havn't been able to find anything about it from anyone!  If you have
any information on how to get a hold of the company which produces the
card or know where any drivers are for it, PLEASE let me know!
As far as I can tell, it's a CGA card that is taking up 2 of my 16-bit
ISA slots but when I enable the test patterns, it displays much more than
the usualy 4 CGA colors... At least 16 from what I can count.. Thanks!
.------------------------------------------.
: Internet: jele@eis.calstate.edu          :
:           bbs.mirage@gilligan.tsoft.net  :
:           bbs.mirage@tsoft.sf-bay.org    :
:           mirage@thetech.com             :
: UUCP    : apple.com!tsoft!bbs.mirage     :
`------------------------------------------'
Computer and Video Imaging Major
From: Lars.Jorgensen@p7.syntax.bbs.bad.se (Lars Jorgensen)
Subject: Externel processes for 3D Studio
Reply-To: Lars.Jorgensen@p7.syntax.bbs.bad.se (Lars Jorgensen)
Distribution: world
Organization: Nr. 5 p} NatR}b
OD-Comment-To: Internet_Gateway
Lines: 13
To:All
Hi,
Does anybody have the source code to the externel processes that comes with 3D
Studio, and mabe som kind of DOC for writing the processes your self.
/Lars
+++ Author: Lars_Jorgensen@p7.syntax.bbs.bad.se, Syntax BBS, Denmark
--- GoldED 2.41
From: valo@cvtstu.cvt.stuba.cs (Valo Roman)
Subject: Re: Text Recognition software availability
Organization: Slovak Technical University Bratislava, Slovakia
Lines: 23
NNTP-Posting-Host: sk2eu.eunet.sk
ReplyTo: valo@cvtstu.cvt.stuba.cs (Valo Roman)
In article <C4IHqM.7v3@mentor.cc.purdue.edu>, ab@nova.cc.purdue.edu (Allen B) writes:
|> One more time: is there any >free< OCR software out there?
|>
|> I ask this question periodically and haven't found anything.  This is
|> the last time.  If I don't find anything, I'm going to write some
|> myself.
|>
|> Post here or email me if you have any leads or suggestions, else just
|> sit back and wait for me. :)
|>
|> ab
I'm not sure if this is free or shareware, but you can try to look to wsmrsimtel20.army.mil,
directory PD1:<MSDOS.DESKPUB>  file OCR104.ZIP .
From the file SIMIBM.LST :
OCR104.ZIP    B   93310  910424  Optical character recognition for scanners.
Hope this helps.
Roman Valo                                                          valo@cvt.stuba.cs
Slovak Technical University
Bratislava
Slovakia
From: johne@iti.gov.sg (Dr. John S. Eickemeyer)
Subject: Re: Sphere from 4 points?
Organization: Information Technology Institute, National Computer Board, Singapore.
Lines: 37
In article <1qkgbuINNs9n@shelley.u.washington.edu> bolson@carson.u.washington.edu (Edward Bolson) writes:
>Boy, this will be embarassing if it is trivial or an FAQ:
>center and radius, exactly fitting those points?  I know how to do it
>for a circle (from 3 points), but do not immediately see a
>straightforward way to do it in 3-D.  I have checked some
>geometry books, Graphics Gems, and Farin, but am still at a loss?
>Please have mercy on me and provide the solution?
Off the top of my head, I might try:
Given: p_1, p_2, p_3, p_4
Find:  p_c (center of sphere determined by p_1, ..., p_4),
dist(p_c, p_i) (radius)
p_c is the same distance from our four points, so
dist(p_c,p_1) = dist(p_c,p_2) = dist(p_c,p_3) = dist(p_c,p_4)
Of course, we can square the whole thing to get rid of square roots:
distsq(p_c,p_1) = distsq(p_c,p_2) = distsq(p_c,p_3) = distsq(p_c,p_4)
Plug in the variables into the distance formula, simplify, and the
x^2_c, y^2_c, and z^2_c terms cancel out, leaving you with three
linearly independent equations and three unknowns (x_c, y_c, z_c).
Solve using your favorite method.  :)
All the best,
- John :)
-------------------------------------------------------------------------------
Dr. John S. Eickemeyer                 ::     "The Lord God is subtle,
Information Technology Institute      ::::     but malicious He is not."
National Computer Board, Singapore     ::
Email: johne@iti.gov.sg                ::                     - Albert Einstein
-------------------------------------------------------------------------------
From: neideck@nestvx.enet.dec.com (Burkhard Neidecker-Lutz)
Subject: Re: Rumours about 3DO ???
Organization: CEC Karlsruhe
Lines: 17
NNTP-Posting-Host: NESTVX
In article <1993Apr15.164940.11632@mercury.unt.edu> Sean McMains <mcmains@unt.edu> writes:
>Wow! A 68070! I'd be very interested to get my hands on one of these,
>especially considering the fact that Motorola has not yet released the
>68060, which is supposedly the next in the 680x0 lineup. 8-D
The 68070 is a variation of the 68010 that was done a few years ago by
the European partners of Motorola. It has some integrated I/O controllers
and half a MMU, but otherwise it's a 68010. Think of it the same as
the 8086 and 80186 were.
Burkhard Neidecker-Lutz
Distributed Multimedia Group, CEC Karlsruhe          EERP Portfolio Manager
Software Motion Pictures & BERKOM II Project         Multimedia Base Technology
Digital Equipment Corporation
neidecker@nestvx.enet.dec.com
From: rcomg@melomys.co.rmit.oz.AU (Mark Gregory)
Subject: AVI file format?
Summary: AVI file format?
Keywords: AVI file format?
Organization: Royal Melbourne Institute of Technology
Lines: 18
NNTP-Posting-Host: melomys.cse.rmit.edu.au
Hi,
would someone please email the new AVI file
format.  I'm sure that many people would
like to know what it is exactly.
Thank you
Mark Gregory Lecturer m.gregory@rmit.edu.au PH(03)6603243 FAX(03)6621060
Royal Melbourne Institute of Technology,
Department of Communication and Electronic Engineering,
P.O. Box 2476V, Melbourne, Victoria, 3001. AUSTRALIA.
--
Mark Gregory Lecturer m.gregory@rmit.edu.au PH(03)6603243 FAX(03)6621060
Royal Melbourne Institute of Technology,
Department of Communication and Electronic Engineering,
P.O. Box 2476V, Melbourne, Victoria, 3001. AUSTRALIA.
From: rob@rjck.UUCP (Robert J.C. Kyanko)
Subject: Re: VGA 640x400 graphics mode
Distribution: world
Organization: Neptune Software Inc
Lines: 26
dutc0006@student.tc.umn.edu writes in article <C5G7qB.BMp@news2.cis.umn.edu>:
> >
> >Some VESA bios's support this mode (0x100).  And *any* VGA should be able to
> >support this (640x480 by 256 colors) since it only requires 256,000 bytes.
> >My 8514/a VESA TSR supports this; it's the only VESA mode by card can support
> >due to 8514/a restrictions. (A WD/Paradise)
> >
> >--
> >I am not responsible for anything I do or say -- I'm just an opinion.
> >             Robert J.C. Kyanko (rob@rjck.UUCP)
>
> 	Ahh no.  Possibly you punched in the wrong numbers on your
> calculator.  256 color modes take a byte per pixel so 640 time 480 is
> 307,200 which is 300k to be exact.  640x400x256 only takes 250k but I
> don't think it is a BIOS mode.  I wouldn't bet that all VGA cards can do
> that either.  If a VGA card has 512k I bet it can do both 640x400 and
> 640x480.  That by definition is SVGA, though not very high SVGA.
>
Yes, I did punch in the wrong numbers (working too many late nites).  I
intended on stating 640x400 is 256,000 bytes.  It's not in the bios, just my
VESA TSR.
--
I am not responsible for anything I do or say -- I'm just an opinion.
Robert J.C. Kyanko (rob@rjck.UUCP)
From: renew@blade.stack.urc.tue.nl (Rene Walter)
Subject: CView answers
Organization: MCGV Stack, Eindhoven University of Technology, the Netherlands.
Lines: 66
NNTP-Posting-Host: blade.stack.urc.tue.nl
Summary: some CView problems explained
Keywords: Stupid Programming
X-Newsreader: TIN [version 1.1 PL6]
A very kind soul has mailed me this reply for the bugs in CView.
Since he isn't in the position to post this himself, he asked me to post
it for him, but to leave his name out. So here it comes:
CView has quite a number of bugs.  The one you mention is perhaps the most
annoying, but not the most dangerous.  As far as I can determine, it has to
do with the temp files that CView creates.  CView gives the user no control
over where it places its temp files: it just places them in its
"current directory".  The problem you mention occurs (as far as I can tell)
when it runs out of disk space for its temp files. It seems as if CView
doesn't check properly for this situation.  As Cview decodes a jpeg, it seems
to write out a temp file with all the pixel data with 24 bit colour
information. Then, for 8 bit displays, it does the "dithering", again writing
another file with the 8 bit colour information.  While it is writing this
second file, it also writes the data to your colour card. Then when it does
the last chunk of 8 bit data, it recopies all the data from the 8 bit file to
your screen again.  (It does this last "recopy" operation for its
"fit to screen" feature, even when this feature is not enabled.)
The result of this process is the following:
1) If it runs out of disk space when writing the first 24 bit file, all
you ever see is as much data as it has room for, and the last bit of
data is simply repeated over and over again because CView never
realizes the disk has filled up and disk writes/reads aren't performed.
2) If it has enough room for the 24 bit data, but runs out of room for
the 8 bit data, you see almost all of the picture as it does the
dithering and writes to the screen card.
However, then when it finishes the dithering and recopies the data
from the 8 bit file to screen (for whatever reason it does this)
one again just gets a repetition of the last chunk of data for which
there was room on the disk.
This is just a guess, but probably fairly accurate.  At least the general
idea is on track I think, although I have probably made errors in details
about file I/O etc.  The way around this is  of course to clear up sufficient
disk space.  The temp files for large JPEG's (1200x900 and bigger) can be
very large (3 Meg + 1 Meg ).  On some of the largest I have needed in excess
of 6 Meg free disk space.
CView has a much more serious bug: if you are trying to display a file from
a floppy, and you change floppies while CView has some temp file open on the
floppy, then CView in certain circumstances will write the directory (and FAT
table? I can't remember) for the removed floppy onto the newly inserted
floppy, thus corruptimg the new floppy in a very serious, possibly
unrevcoverable way.  SO BE CAREFUL!  It is incredibly poor programming for a
program to do this.  On the other hand, when choosing files in the Open Files
menu, CView insists on doing a few disk reads every time one moves the
hi-lighter square.  Incredibly annoying when it could do them all at once
when it gets the directory info.  And really, how much effort does it take to
sort a directory listing?
With much thanks to the originator of this article.
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+
|        Rene Walter          |          renew@stack.urc.tue.nl           |
+-----------------------------+-------------------------------------------+
| "Will I drown in tears of sorrow, Is there hope for tomorrow,           |
|  Will this world ever get better, Can't we all just live together       |
|  I don't wanna live in strife  , I just wanna live my life              |
|  I deserve to have a future..."                                         |
|                                     -The Good Girls    "Future"         |
+=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=+
From: camter28@astro.ocis.temple.edu (Carter Ames)
Subject: Re: alt.raytrace (potential group)
Organization: Temple University
Lines: 7
Nntp-Posting-Host: astro.ocis.temple.edu
X-Newsreader: TIN [version 1.1 PL8]
Yes, please create the group alt.raytrace soon!!
I'm hooked on pov.
geez. like I don't have anything better to do....
OH!! dave letterman is on...
From: g.coulter@daresbury.ac.uk (G. Coulter)
Subject: SHADOW Optical Raytracing Package?
Reply-To: g.coulter@daresbury.ac.uk
Organization: SERC Daresbury Laboratory, UK
Lines: 17
NNTP-Posting-Host: dlsg.dl.ac.uk
Hi Everyone ::
I am  looking for  some software  called SHADOW as
far as  I know  its a   simple  raytracer  used in
the  visualization  of  synchrotron   beam  lines.
Now we have  an  old  version of the  program here
,but unfortunately we don't have any documentation
if anyone knows  where I  can  get  some  docs, or
maybe  a  newer  version  of  the program or  even
another  program that does the same sort of  thing
I would love to hear from you.
PS I think SHADOW was written by a F Cerrina?
Anyone any ideas?
Thanks -Gary- SERC Daresbury Lab.
From: erich@fi.gs.com (Erich Schlaikjer)
Subject: character recognition
Nntp-Posting-Host: raider
Reply-To: schlae@aron01.gs.com
Organization: Goldman, Sachs & Co
X-Newsreader: TIN [version 1.1 PL8]
Lines: 7
Is there any program available (free or otherwise) for taking a tiff or gif
or some other bitmapped file and turning it (or parts of it) into ascii
characters?
DOS, OS/2 or platform independent programs if possible.
Thanks.
From: rws2v@uvacs.cs.Virginia.EDU (Richard Stoakley)
Subject: Need a good concave -> convex polygon algorithm
Organization: University of Virginia Computer Science Department
Lines: 6
We need a good concave ->convex polygon conversion routine.
I've tried a couple without much luck.  Please E-mail responses and I
will post a summary of any replies.  Thank you.
Richard Stoakley
rws2v@uvacs.cs.Virginia.EDU
From: greg@cs.uct.ac.za (Gregory Torrance)
Subject: Automatic layout of state diagrams
Organization: Computer Science Department, University of Cape Town
Lines: 18
Hi,
I'm hoping someone out there will be able to help our computer science
project group. We are doing computer science honours, and our project
is to do a 'graphical simulator for a finite state automata'.
Basically, the program must draw a diagram of a FSA from a textual grammar,
showing circles for states, and labeled arc's in-between.
The problem is working out the best way to layout the states, and draw the
arc's in-between so that as few arc's as possible cross each other.
If anyone has any suggestions/algorithms/bug-free ready to compile C code :)
that might help us, it would be much appreciated.
Thanks in advance,
Gregory
From: ehgasm2@uts.mcc.ac.uk (Simon Marshall)
Subject: How do I compensate for photographic viewpoint and distortion?
Reply-To: S.Marshall@dcs.hull.ac.uk
Organization: Manchester Computing Centre, Manchester, England
Lines: 42
Hi to all out there.  We have this problem, and I'm not certain I'm solving it
in the correct way.  I was wondering if anyone can shed light on this, or point
me in the right place to look...
We have an X-ray imaging camera and a metallic tube with a cylindrical hole
passing through it at a right angle to the tube's axis:
|
||                   [ image
|
X-ray source ]                     ||                   | screen
metallic || tube              |
||                   |
|
We know source--screen centre distance, radius of the tube, radius of the hole.
We do some calculations based on the image of the hole on the screen.  However,
the calculations are mathematically highly complex, and must assume that the
object's hole projects an image (resembling an ellipse if the tube is not
parallel to the screen) in the centre of the screen.  However, it is unlikely
that the object is placed so conveniently.
Firstly, we must transform the major and minor axis of the ellipse.  I cannot
know what the angle between the tube and screen is.  Do I have to assume that
they are parallel to do the transformation?  How do I do this transformation?
Secondly, there is a distortion of the image due to the screen being planar
(the source--screen distance increases as we move away from the centre of the
screen).  How can I compensate the ellipse's axis for this image distortion?
So, please can anyone give us a few pointers here?  How do we transform the
image so it appears as it would if it were in the centre of the screen, and how
do I deal with distortion due to the shape of the screen?
We'd appreciate any help, either posted or emailed.
Thanks in advance, Simon.
--
Simon Marshall, Dept. of Computer Science, University of Hull, Hull HU6 7RX, UK
"Football isn't about life and death.  It's more important than that." Bill
Email: S.Marshall@cs.hull.ac.uk   Phone: +44 482 465951  Fax: 466666   Shankley
From: bob@black.ox.ac.uk (Bob Douglas)
Subject: Re: Sphere from 4 points?
Organization: Oxford University Computing Service, 13 Banbury Rd, Oxford, U
Lines: 94
Originator: bob@black
In article <2406@hcrlgw92.crl.hitachi.co.jp> steve@hcrlgw (Steven Collins) writes:
>In article <1qkgbuINNs9n@shelley.u.washington.edu> bolson@carson.u.washington.edu (Edward Bolson) writes:
>>Boy, this will be embarassing if it is trivial or an FAQ:
>>
>>Given 4 points (non coplanar), how does one find the sphere, that is,
>>center and radius, exactly fitting those points?  I know how to do it
>>for a circle (from 3 points), but do not immediately see a
>>straightforward way to do it in 3-D.  I have checked some
>>geometry books, Graphics Gems, and Farin, but am still at a loss?
>>Please have mercy on me and provide the solution?
>
>Wouldn't this require a hyper-sphere.  In 3-space, 4 points over specifies
>a sphere as far as I can see.  Unless that is you can prove that a point
>exists in 3-space that is equi-distant from the 4 points, and this may not
>necessarily happen.
>
>Correct me if I'm wrong (which I quite possibly am!)
>
>steve
Sorry!! :-)
Call the four points A, B, C and D. Any three of them must be
non-collinear (otherwise all three could not lie on the surface
of a sphere) and all four must not be coplaner (otherwise either
they cannot all lie on a sphere or they define an infinity of them).
A, B and C define a circle. The perpendicular bisectors of AB, BC
and CA  meet in a point (P, say) which is the centre of this circle.
This circle must lie on the surface of the desired sphere.
Consider the normal to the plane ABC passing through P. All points
on this normal are equidistant from A, B and C and its circle (in
fact it is a diameter of the desired sphere). Take the plane
containing this normal and D (if D lies on the normal any
plane containing the normal will do); this plane is at right angles
to the ABC one.
Let E be the point (there are normally two of them) on the circumference
of the ABC circle which lies in this plane. We need a point Q on the
normal such that EQ = DQ. But the intersection of the perpendicular
bisector of ED and the normal is such a point (and it exists since D is
not in the plane ABC, and so ED is not at right angles to the normal).
Algorithm:
Is the sphere well defined?
(1) Check that A and B are not coincident (=> failure).
(2) Find the line AB and check that C does not lie on it (=> failure).
(3) Find the plane ABC and check that D does not lie in it (=> failure).
Yes. Find its centre.
(1) Find the perpendicular bisectors of AB and AC.
(2) Find their point of intersection (P).
(3) Find the normal to the plane ABC passing through P (line N).
(4) Find the plane containing N and D; find the point E on the
ABC circle in this plane (if D lies on N, take E as A).
(4) Find the perpendicular bisector of ED (line L)
(5) Find the point of intersection of N and L (Q).
Q is the centre of the desired sphere
Pictures:
(1) In the plane ABC
A
P
B                               C
(2) At right-angles to ABC, in the plane containing N and D
E
D
line N
--------------------P-------------Q---------------------------
Numerically:
If ED << EP then Q will be very close to P (relative to the radius
of the ABC circle) and subject to error. It's best to choose D so
that the least of AD, BD and CD is larger than for any other choice.
--
Bob Douglas              Computing Services, University of Oxford
Internet:                bob@oxford.ac.uk
Address:                 13 Banbury Road, Oxford OX2 6NN, UK
Telephone:               +44-865-273211
From: hugo@hydra.unm.edu (patrice cummings)
Subject: polygon orientation in DXF?
Organization: University of New Mexico, Albuquerque
Lines: 21
NNTP-Posting-Host: hydra.unm.edu
Hi.  I'm writing a program to convert .dxf files to a database
format used by a 3D graphics program I've written.  My program stores
the points of a polygon in CCW order.  I've used 3D Concepts a
little and it seems that the points are stored in the order
they are drawn.
Does the DXF format have a way of indicating which order the
points are stored in, CW or CCW?  Its easy enough to convert,
but if I don't know which way they are stored, I dont know
which direction the polygon should be visible from.
If DXF doesn't handle this, can anyone recommend a workaround?
The best I can think of is to create two polygons for each one
in the DXF file, one stored CW and the other CCW.  But that
doubles the number of polygons and decreases speed...
Thanks in advance for any help,
Patrice
hugo@hydra.unm.edu
From: mdpyssc@fs1.mcc.ac.uk (Sue Cunningham)
Subject: Fractals? What good are they ?
Organization: Manchester Computing Centre
Lines: 5
We have been using Iterated Systems compression board to compress
pathology images and are getting ratios of 40:1 to 70:1 without too
much loss in quality. It is taking about 4 mins per image to compress,
on a 25Mhz 486 but decompression is almost real time on a 386 in software
alone.
From: tiang@midway.ecn.uoknor.edu (Tiang)
Subject: Re: A Book I found... graphics
Nntp-Posting-Host: midway.ecn.uoknor.edu
Organization: Engineering Computer Network, University of Oklahoma, Norman, OK, USA
Lines: 35
covlir@crockett1c.its.rpi.edu (Locks) writes:
Hello,
>I happened to spot an excellent book in a bookstore about 4 days ago,
>though!!!!!!  It is in C++ and assembly.  It teaches you the assembly
>as it goes along --so if you're like me and have no assembler experience,
>don't worry.  It has almost everything that I wanted to know and has
>-----WORKING----- code.
>--Rod Covlin--
I just bought a copy.  I can't disagree that it is a very good
book.  But unfortunately I was looking for the same graphics feature
described in this book but _NOT_ in 640x480x16 or 320x200x256 mode. It
is easy to accomodate all the pixel "descriptor" (or color attributes)
in those modes into A0000-AFFFFF, but not in 640x480x256(which is what
I am interested in).  I haven't finish the book but I affraid the
author didn't talk much about this mode(or other SVGA modes).  If
anyone out there know any good book dealing with fast SVGA graphics
manupulation(scrolling, repainting, all other good stuff..) please
send me mail.  Programming guide to SVGA card is also welcome.
Thanks in advance.
************************************************************************
*                         Tiang   T.    Foo                            *
*		      tiang@uokmax.ecn.uoknor.edu 		       *
************************************************************************
--
************************************************************************
*                         Tiang   T.    Foo                            *
*		      tiang@uokmax.ecn.uoknor.edu 		       *
************************************************************************
From: pest@konech.UUCP (Wolfgang Pest)
Subject: Speedstar 24 - how to program the TrueColor mode ?
Distribution: world
Organization: Kontron Elektronik GmbH Eching, Germany
Lines: 17
Hello,
I purchased my new 486 with a NoName graphics card installed which is obviously
Speedstar 24 compatible. Its name is "VGA 4000 TrueColor".
It is accompanied with some drivers and the utilities VMODE, XMODE and
at least one more MODE, as well as some drivers for Lotus, Windows, etc.
Only one of the drivers is told to provide the TrueColor mode, namely
the Windows 3.1 driver.
Nowhere else, except in the ad, is any pointer to the TrueColor mode.
Some articles in this group about the Speedstar 24 and some other facts
made me believe that my card is compatible to that one.
Does anybody out there know how this mode can be adjusted? How can I write
a driver which allows me to have 16.7 millions of colors with a resolution
of 640 x 480 with 45 Hz interlaced ?
Greetings,
Wolfgang
From: sab@gnv.ifas.ufl.edu
Subject: Info needed: 2D contour plotting
Lines: 16
Hi Everyone--
It's spend-the-money-before-it-goes-away time here at U.Florida
and we need to find some PC-based software that will do contour
plotting with irregular boundaries,i.e., a 2-D profile of a soil
system with a pond superimposed
/-----------------  on it.  We've given SURFER a
POND      /                  |  trial run but it interpolates
/                    |  contours out into the pond and/or
----------/                      |  creates artifacts at the borders.
|              SOIL              |  If anyone out there knows of a
|                                |  product, I'ld appreciate hearing
|________________________________|  about it.  If there is enough of
a response, I'll post a summary.  Thanks -- (and now back to lurking).
Steve Bloom, Soil & Water Science, U.Fl (SAB@GNV.IFAS.UFL.EDU)
From: tiang@midway.ecn.uoknor.edu (Tiang)
Subject: VESA standard VGA/SVGA programming???
Nntp-Posting-Host: midway.ecn.uoknor.edu
Organization: Engineering Computer Network, University of Oklahoma, Norman, OK, USA
Keywords: vga
Lines: 34
Hi,
I have a few question about graphics programming in VGA/SVGA :
1. How VESA standard works?  Any documentation for VESA standard?
2. At a higher resolution than 320x200x256 or 640x480x16 VGA mode,
where the video memory A0000-AFFFF is no longer sufficient to hold
all info, what is the trick to do fast image manipulation?  I
heard about memory mapping or video memory bank switching but know
nothing on how it is implemented.   Any advice, anyone?
3. My interest is in 640x480x256 mode.  Should this mode be called
SVGA mode?  What is the technique for fast image scrolling for the
above mode?  How to deal with different SVGA cards?
Your guidance to books or any other sources to the above questions
would be greatly appreciated.  Please send me mail.
Thanks in advance!
************************************************************************
*                         Tiang   T.    Foo                            *
*		      tiang@uokmax.ecn.uoknor.edu 		       *
************************************************************************
--
************************************************************************
*                         Tiang   T.    Foo                            *
*		      tiang@uokmax.ecn.uoknor.edu 		       *
************************************************************************
Organization: Stanford Linear Accelerator Center
From: <RCB@SLACVM.SLAC.STANFORD.EDU>
Subject: Re: Sphere from 4 points?
Distribution: world
Lines: 21
> From: bolson@carson.u.washington.edu (Edward Bolson)
> Given 4 points (non coplanar), how does one find the sphere, that is,
> cnter and radius, exactly fitting those points?
The equation of the sphere through the 4 points (x1,y1,z1),...,(x4,y4,z4) is
| x^2+y^2+z^2  x1^2+y1^2+z1^2  ...  x4^2+y4^2+z4^2 |
|      x             x1        ...        x4       |
|      y             y1        ...        y4       | = 0
|      z             z1        ...        z4       |
|      1             1         ...        1        |
When this 5 by 5 determininant is expanded on its first column you get the
equation in the form
A(x^2+y^2+z^2) + Bx + Cy + Dz + E = 0
If you need the center and radius, jyst divide through by A (it cannot be
zero if the 4 given points form a non-degenerate tetrahedron) and complete
the square on x, y, and z to obtain
(x-xc)^2 + (y-yc)^2 + (z-zc)^2 = r^2
rcb@slacvm.slac.stanford.edu (Bob Beach)
From: cormackj@access.digex.com (John Cormack)
Subject: Re: VESA on the Speedstar 24
Organization: Express Access Online Communications, Greenbelt, MD USA
Lines: 8
NNTP-Posting-Host: access.digex.net
Summary: Speedstar 24X
Keywords: VESA driver for Speedstar 24X
I need a VESA driver for the Diamond Speedstar 24X that works. I've tried
several and none work for the hicolor modes.
John Cormack
Cormackj@access.digex.com
From: orourke@sophia.smith.edu (Joseph O'Rourke)
Subject: Re: Delaunay Triangulation
Organization: Smith College, Northampton, MA, US
Lines: 22
In article <lsk1v9INN93c@caspian.usc.edu> zyeh@caspian.usc.edu (zhenghao yeh) writes:
>
>Does anybody know what Delaunay Triangulation is?
>Is there any reference to it?
>Is it useful for creating 3-D objects? If yes, what's the advantage?
There is a vast literature on Delaunay triangulations, literally
hundreds of papers.  A program is even provided with every copy of
Mathematica nowadays.  You might look at this if you are interested in
using it for creating 3D objects:
@article{Boissonnat5,
author = "J.D. Boissonnat",
title = "Geometric Structures for Three-Dimensional Shape Representation",
journal = "ACM Transactions on Graphics",
month = "October",
year = {1984},
volume = {3},
number = {4},
pages = {266-286}
}
From: ukrphil@prlhp1.prl.philips.co.uk (M.J.Phillips)
Subject: Re: Rumours about 3DO ???
Reply-To: ukrphil@prlhp1.UUCP (M.J.Phillips)
Organization: Philips Research Laboratories, Redhill, UK
Lines: 7
The 68070 _does_ exist. It's number was licensed to Philips to make their
own variant. This chip includes extra featurfes such as more I/O ports,
I2C bus... making it more microcontroller like.
Because of the confusion with numbering (!), Philips other products in the
[range with the 68??? core have been given differend numbers like PCF...
or PCD7.. or something.
From: saz@hook.corp.mot.com (Scott Zabolotzky)
Subject: .GIF to .BMP
Organization: Motorola, Inc.
Distribution: usa
Nntp-Posting-Host: 129.188.122.160
Lines: 11
I'm not sure if this is the correct place to ask this question.  If not,
please forgive me and point me in the right direction.
Does anybody know of a program that converts .GIF files to .BMP files
and if so, where can I ftp it from?  Any help would be greatly
appreciated.
Please respond via e-mail as I do not read this group very often.
Thanks...Scott
From: kewe@bskewe.atr.bso.nl (Cornelis Wessels)
Subject: Point within a polygon
Organization: MATHEMAGIC
Lines: 71
In article <1993Apr14.102007.20664@uk03.bull.co.uk> scrowe@hemel.bull.co.uk writes:
>
> I am looking for an algorithm to determine if a given point is bound by a
> polygon. Does anyone have any such code or a reference to book containing
> information on the subject ?
>
>                 Regards
>
>                         Simon
>
/* +-------------------------------------------------------------------+
|                                                                   |
| Function    : PuntBinnenPolygoon                                  |
|                                                                   |
+-------------------------------------------------------------------+
|                                                                   |
| Auteur      : Cornelis Wessels                                    |
|                                                                   |
| Datum       : 11-01-1993                                          |
|                                                                   |
| Omschrijving: Bepaalt of de aangeboden VECTOR2D p binnen of op de |
|               rand van het polygoon P valt.                       |
|                                                                   |
+-------------------------------------------------------------------+
|                                                                   |
| Wijzigingen : -                                                   |
|                                                                   |
+-------------------------------------------------------------------+ */
CLIBSTATUS PuntBinnenPolygoon ( POLYGOON *P, VECTOR2D *p )
{
VECTOR2D o, v, w;
INDEX    aantal_snijpunten, N, n;
aantal_snijpunten = 0;
N                 = GeefPolygoonLengte(P);
GeefPolygoonRandpunt ( P, N, &o );
for ( n=1; n<=N; n++ )
{
GeefPolygoonRandpunt ( P, n, &v );
if ( o.x >= p->x && v.x <  p->x ||
o.x <  p->x && v.x >= p->x  )
{
w.x = p->x;
InterpoleerLineair ( &o, &v, &w );
if ( w.x == p->x && w.y == p->y )
return(CLIBSUCCES);
else if ( w.y > p->y )
aantal_snijpunten++;
}
KopieerVector2d ( &v, &o );
}
if ( aantal_snijpunten%2 == 0 )
return(CLIBERBUITEN);
else
return(CLIBSUCCES);
}
Cornelis Wessels
Krommenoord 14
3079 ZT  ROTTERDAM
The Netherlands
+31 10 4826394
kewe@bskewe.atr.bso.nl
From: dfegan@lescsse.jsc.nasa.gov (Doug Egan)
Subject: Re: Any graphics packages available for AIX ?
Organization: LESC
Lines: 20
In <1993Apr8.122037.19260@sun1x.res.utc.com> mark@sun1x.res.utc.com (MARK STUCKY) writes:
>In <1pr9qnINNiag@tahko.lpr.carel.fi>,
>   Ari Suutari (ari@tahko.lpr.carel.fi) wrote:
>   > Does anybody know if there are any good 2d-graphics packages
>   > available for IBM RS/6000 & AIX ? I'm looking for something
>   > like DEC's GKS or Hewlett-Packards Starbase, both of which
>   > have reasonably good support for different output devices
>   > like plotters, terminals, X etc.
Try graPHIGS from IBM... It is an excellent package! :^)
Doug
--
Doug Egan                                  "It's not what you got -
Lockheed Engineering and Sciences Co.       It's what you give."
Houston, TX                                                  -Tesla
***** email:  egan@blkbox.com  *****
From: schultz@schultz.kgn.ibm.com (Karl Schultz)
Subject: Re: VESA standard VGA/SVGA programming???
Reply-To: schultz@vnet.ibm.com
Organization: IBM AWS Graphics Systems
Keywords: vga
Lines: 45
|> 1. How VESA standard works?  Any documentation for VESA standard?
The VESA standard can be requested from VESA:
VESA
2150 North First Street, Suite 440
San Jose, CA 95131-2029
Ask for the VESA VBE and Super VGA Programming starndards.  VESA
also defines local bus and other standards.
The VESA standard only addresses ways in which an application
can find out info and capabilities of a specific super VGA
implementation and to control the video mode selection
and video memory access.
You still have to set your own pixels.
|> 2. At a higher resolution than 320x200x256 or 640x480x16 VGA mode,
|>    where the video memory A0000-AFFFF is no longer sufficient to hold
|>    all info, what is the trick to do fast image manipulation?  I
|>    heard about memory mapping or video memory bank switching but know
|>    nothing on how it is implemented.   Any advice, anyone?
VESA defines a "window" that is used to access video memory.
This window is anchored at the spot where you want to write,
and then you can write as far as the window takes you (usually
64K).  Windows have granularities, so you can't just anchor
them anywhere.  Also, some implementations allow two windows.
|> 3. My interest is in 640x480x256 mode.  Should this mode be called
|>    SVGA mode?  What is the technique for fast image scrolling for the
|>    above mode?  How to deal with different SVGA cards?
This is VESA mode 101h.  There is a Set Display Start function
that might be useful for scrolling.
|>   Your guidance to books or any other sources to the above questions
|> would be greatly appreciated.  Please send me mail.
Your best bet is to write VESA for the info.  There have also
been announcements on this group of VESA software.
--
Karl Schultz                             schultz@vnet.ibm.com
These statements or opinions are not necessarily those of IBM
From: tsa@cellar.org (The Silent Assassin)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: The Cellar BBS and public access system
Lines: 22
rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter) writes:
> Hi Netters,
>
> I'm building a CAD package and need a 3D graphics library that can handle
> some rudimentry tasks, such as hidden line removal, shading, animation, etc.
>
> Can you please offer some recommendations?
It's really not that hard to do.  There are books out there which explain
everything, and the basic 3D functions, translation, rotation, shading, and
hidden line removal are pretty easy.  I wrote a program in a few weeks witht
he help of a book, and would be happy to give you my source.
Also, Quickdraw has a lot of 3D functions built in, and Think pascal
can access them, and I would expect that THINK C could as well.  If you can
find out how to use the Quickdraw graphics library, it would be an excellent
choice, since it has a lot of stuff, and is built into the Mac, so should be
fast.
Libertarian, atheist, semi-anarchal Techno-Rat.
I define myself--tsa@cellar.org
From: tsa@cellar.org (The Silent Assassin)
Subject: Questions about Plane Eqn method of Hidden Surface removal
Organization: The Cellar BBS and public access system
Lines: 18
What are the main advantages of this method?  I have seen it described, and
the algiorithm seems a  little bit long.  I developed my own method, which
requires that the points be in a counter-clockwise order, and returns
whether you are looking at the back or the front, similar to the plane eqn
method.  It uses few calculations however, basically it is several
comparisons.  The only disadvantage I see is that it must be done after the
transformation from view coordinates to coordinates to display on the
screen, which means that a little more calculation isneeded beforehand.  My
method basically figures out whether the points that will appear on the
screen are clockwise or counterclockwise.  When looking at the back of
something, the points occur in an opposite direction from the front, so
merely by figuring out which way the points go, you can tell whether you are
looking at the back or front of a 2d polygon.  Has anyone heard of this
method before?  It is so simple, I doubt i am the first to think of it.
Libertarian, atheist, semi-anarchal Techno-Rat.
I define myself--tsa@cellar.org
From: cliff@watson.ibm.com (cliff)
Subject: Reprints
Disclaimer: This posting represents the poster's views, not necessarily those of IBM.
Nntp-Posting-Host: cliff.watson.ibm.com
Organization: A
Lines: 17
I have a few reprints left of chapters from my book "Visions of the
Future".  These include reprints of 3 chapters probably of interest to
readers of this forum, including:
1. Current Techniques and Development of Computer Art, by Franz Szabo
2. Forging a Career as a Sculptor from a Career as Computer Programmer,
by Stewart Dickson
3. Fractals and Genetics in the Future by H. Joel Jeffrey
I'd be happy to send out free reprints to researchers for scholarly
purposes, until the reprints run out.
Just send me your name and address.
Thanks, Cliff  cliff@watson.ibm.com
From: haston@utkvx.utk.edu (Haston, Donald Wayne)
Subject: Church related graphics
News-Software: VAX/VMS VNEWS 1.41
Keywords: Christian graphics
Organization: University of Tennessee Computing Center
Lines: 13
I am looking for some good quality graphics files which are
suitable for use in church-related presentations. I prefer vector,
but anything would be helpful.
If you know of bulletin boards which have collections of this nature, or
commercial products, please inform me by email:
HASTON@UTKVX.UTK.EDU
Wayne Haston
From: lau@auriga.rose.brandeis.edu (frankie t. k. lau)
Subject: PC fastest line/circle drawing routines: HELP!
Organization: Brandeis University
Lines: 41
hi all,
IN SHORT: looking for very fast assembly code for line/circle drawing
on SVGA graphics.
COMPLETE:
I am thinking of a simple but fast molecular
graphics program to write on PC or clones. (ball-and-stick type)
Reasons: programs that I've seen are far too slow for this purpose.
Platform: 386/486 class machine.
800x600-16 or 1024x728-16 VGA graphics
(speed is important, 16-color for non-rendering
purpose is enough; may stay at 800x600 for
speed reason.)
(hope the code would be generic enough for different SVGA
cards.  My own card is based on Trident 8900c, not VESA?)
What I'm looking for?
1) fast, very fast routines to draw lines/circles/simple-shapes
on above-mentioned SVGA resolutions.
Presumably in assembly languagine.
Yes, VERY FAST please.
2) related codes to help rotating/zooming/animating the drawings on screen.
Drawings for beginning, would be lines, circles mainly, think of
text, else later.
(you know, the way molecular graphics rotates, zooms a molecule)
2) and any other codes (preferentially in C) that can help the
project.
Final remarks;-
non-profit.  expected to become share-, free-ware.
Any help is appreciated.
thanks
-Frankie
lau@tammy.harvard.edu
PS pls also email, I may miss reply-post.
From: ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado)
Subject: Re: Rumours about 3DO ???
Disclaimer: This posting represents the poster's views, not necessarily those of IBM
Nntp-Posting-Host: rs43873.rchland.ibm.com
Organization: IBM Rochester
Lines: 74
In article <1993Apr15.164940.11632@mercury.unt.edu>, Sean McMains <mcmains@unt.edu> writes:
|> In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
|> Muchado, ricardo@rchland.vnet.ibm.com writes:
|> >   And CD-I's CPU doesn't help much either.  I understand it is
|> >a 68070 (supposedly a variation of a 68000/68010) running at something
|> >like 7Mhz.  With this speed, you *truly* need sprites.
|>
|> Wow! A 68070! I'd be very interested to get my hands on one of these,
|> especially considering the fact that Motorola has not yet released the
|> 68060, which is supposedly the next in the 680x0 lineup. 8-D
Sean, the 68070 exists! :-)
|>
|> Ricardo, the animation playback to which Lawrence was referring in an
|> earlier post is plain old Quicktime 1.5 with the Compact Video codec.
|> I've seen digitized video (some of Apple's early commercials, to be
|> precise) running on a Centris 650 at about 30fps very nicely (16-bit
|> color depth). I would expect that using the same algorithm, a RISC
|> processor should be able to approach full-screen full-motion animation,
|> though as you've implied, the processor will be taxed more with highly
|> dynamic material.
|> ========================================================================
|> Sean McMains              | Check out the Gopher    | Phone:817.565.2039
|> University of North Texas | New Bands Info server   | Fax  :817.565.4060
|> P.O. Box 13495            | at seanmac.acs.unt.edu  | E-Mail:
|> Denton TX 76203           |                         |  McMains@unt.edu
Sean, I don't want to get into a 'mini-war' by what I am going to say,
but I have to be a little bit skeptic about the performance you are
claiming on the Centris, you'll see why (please, no-flames, I reserve
those for c.s.m.a :-) )
I was in Chicago in the last consumer electronics show, and Apple had a
booth there.  I walked by, and they were showing real-time video capture
using a (Radious or SuperMac?) card to digitize and make right on the spot
quicktime movies.  I think the quicktime they were using was the old one
(1.5).
They digitized a guy talking there in 160x2xx something.  It played back quite
nicely and in real time.  The guy then expanded the window (resized) to 25x by
3xx (320 in y I think) and the frame rate decreased enough to notice that it
wasn't 30fps (or about 30fps) anymore.  It dropped to like 15 fps.  Then he
increased it just a bit more, and it dropped to 10<->12 fps.
Then I asked him what Mac he was using... He was using a Quadra (don't know
what model, 900?) to do it, and he was telling the guys there that the Quicktime
could play back at the same speed even on an LCII.
Well, I spoiled his claim so to say, since a 68040 Quadra Mac was having
a little bit of trouble.  And this wasn't even from the hardisk!  This was
from memory!
Could it be that you saw either a newer version of quicktime, or some
hardware assisted Centris, or another software product running the
animation (like supposedly MacroMind's Accelerator?)?
Don't misunderstand me, I just want to clarify this.
But for the sake of the posting about a computer doing it or not, I can
claim 320x200 (a tad more with overscan) being done in 256,000+ colors in
my computer (not from the hardisk) at 30fps with Scala MM210.
But I agree, if we consider MPEG stuff, I think a multimedia consumer
low-priced box has a lot of market... I just think 3DO would make it,
no longer CD-I.
--------------------------------------
Raist  New A1200 owner   320<->1280 in x, 200<->600 in y
in 256,000+ colors from a 24-bit palette.  **I LOVE IT!**<- New Low Fat .sig
*don't e-mail me* -> I don't have a valid address nor can I send e-mail
From: seth@north1.acpub.duke.edu (Seth Wandersman)
Subject: Oak Driver NEEDED (30d studio)
Reply-To: seth@north1.acpub.duke.edu (Seth Wandersman)
Lines: 8
Nntp-Posting-Host: north1.acpub.duke.edu
Hi, I'm looking for the 3-D studio driver for the
Oak card with 1 M of RAM.
This would be GREATLY (and I mean that) appreciated
Maybe I should have just gotten a more well know card.
thanks
seth@acpub.duke.edu
From: khan0095@nova.gmi.edu (Mohammad Razi Khan)
Subject: manipulating a hexagonal grid
Organization: GMI Engineering&Management Institute, Flint, MI
Lines: 28
Ok, lets say youve got a grid of hexagons
that go in a        10
9
10
9
etc..
for a total of 15 rows down
that means there are 10 hexagons in the 1st line,
9 lined up underneath in the second line
10 lined up underneath in the third line
9 lined up under neath in the fourht...
the problem is  given the center of any arbritrary hexagon, and a line with
and arbritrary slope, Which hexagons does that line cross through
(The line doesn't necessarily have to cross through the center of other hexagon,it can even be a tangent and count).  Any helpers, my friend was baffeled
when trying to figure this.
:w
--
Mohammad R. Khan                /    khan0095@nova.gmi.edu
After July '93, please send mail to  mkhan@nyx.cs.du.edu
From: tmc@spartan.ac.BrockU.CA (Tim Ciceran)
Subject: Re: .GIF to .BMP
Organization: Brock University, St. Catharines Ontario
X-Newsreader: TIN [version 1.1 PL9]
Distribution: usa
Lines: 21
Scott Zabolotzky (saz@hook.corp.mot.com) wrote:
: I'm not sure if this is the correct place to ask this question.  If not,
: please forgive me and point me in the right direction.
: Does anybody know of a program that converts .GIF files to .BMP files
: and if so, where can I ftp it from?  Any help would be greatly
: appreciated.
: Please respond via e-mail as I do not read this group very often.
: Thanks...Scott
Sorry Scott, if you post it here, you can read it here.  There is a shareware
program available via anonymous FTP that will suit your needs.  You'll find
it at OAK.OAKLAND.EDU  in the subdirectory pub/msdos/graphics.  The file is
called "GRFWK61T.ZIP."
TMC.
(tmc@spartan.ac.brocku.ca)
From: khan0095@nova.gmi.edu (Mohammad Razi Khan)
Subject: Looking for a good book for beginners
Organization: GMI Engineering&Management Institute, Flint, MI
Lines: 10
I wanted to know if any of you out there can recommend a good
book about graphics, still and animated, and in VGA/SVGA.
Thanks in advance
--
Mohammad R. Khan                /    khan0095@nova.gmi.edu
After July '93, please send mail to  mkhan@nyx.cs.du.edu
From: berger@chaos.cs.brandeis.edu (David Berger)
Subject: Need some Graphics Help!
Organization: Brandeis University
Lines: 32
Help!  I'm trying to program my VGA!  I've got it working
with in pascal with the following routines for mode $13h
(320*200*256).  I've got a VESA compatable Trident 8900C w/1meg
and need to program in 1024*768 mode.  I don't care how many colors.
Could someone take this code and help me write 2 new procedures to
replace them so that it'll work in 1024*768*16 or 1024*768*256?
That'd be GREAT!  Thanks...
Here is the code I currently have for 320*200*256 mode:
Procedure GraphMode;
Begin { VideoMode }
Asm
Mov  AH,00
Mov  AL,13h
Int  10h
End;
End;  { VideoMode }
Procedure PlotPoint (x, y, c : Integer);
Begin
Mem[$A000:x+y*320]:=c;
End;
--
David
From: thinman@netcom.com (Technically Sweet)
Subject: What is reverse or negative video?
Organization: International Foundation for Internal Freedom
Lines: 23
I'm interested in simulating reverse (or negative) color video
mathematically.  What is the transform?  Is it a simple
reversal of the hue value in the HSV color space?  Is it
a manipulation in the YUV color space?  How is it related
to solarization?
If you want to see something truly wild, turn on the
reverse video effect on a camcorder so equipped,
and point it at the monitor.  This creates a chaotic
dynamical system whose phase space is continuous along
rotation, zoom, focus, etc.  Very very surprising and
lovely.  I'd like to write a simulation of this effect
without analog grunge.  Thanks for any info you may have.
Please e-mail any info to me.  I'll post a summary.
Thanks,
--
Lance Norskog
thinman@netcom.com
Data is not information is not knowledge is not wisdom.
From: orourke@sophia.smith.edu (Joseph O'Rourke)
Subject: Re: Need a good concave -> convex polygon algorithm
Organization: Smith College, Northampton, MA, US
Lines: 16
In article <C5Juyz.ALy@murdoch.acc.Virginia.EDU> rws2v@uvacs.cs.Virginia.EDU (Richard Stoakley) writes:
>	We need a good concave ->convex polygon conversion routine.
>I've tried a couple without much luck.  Please E-mail responses and I
>will post a summary of any replies.  Thank you.
>
>Richard Stoakley
>rws2v@uvacs.cs.Virginia.EDU
The problem is not precisely defined above, but if you need to find
the smallest convex polygon that encloses a given polygon, then
you are seeking the convex hull of your original polygon.  There
are two ways to do this:  use a somewhat tricky but by-now well
examined linear-time algorithm that exploits the polygon boundary,
or just feed the vertices of the original polygon to a convex hull
routine and accept O(n log n).  Both methods are discussed in
Preparata and Shamos, for example.
From: brentb@tamsun.tamu.edu (Brent)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Texas A&M Univ., Inc.
Lines: 44
NNTP-Posting-Host: tamsun.tamu.edu
tsa@cellar.org (The Silent Assassin) writes:
>rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter) writes:
>
>> Can you please offer some recommendations?
>
>It's really not that hard to do.  There are books out there which explain
>everything, and the basic 3D functions, translation, rotation, shading, and
>hidden line removal are pretty easy.  I wrote a program in a few weeks witht
>he help of a book, and would be happy to give you my source.
I think he wanted to avoid reinventing the wheel.
I would suggest that you take your code, and submit it to
comp.sys.mac.binaries to be distributed (including to the ftp sites).
Many folks, myself included, would enjoy the extra code.
>	Also, Quickdraw has a lot of 3D functions built in, and Think pascal
>can access them, and I would expect that THINK C could as well.  If you can
>find out how to use the Quickdraw graphics library, it would be an excellent
>choice, since it has a lot of stuff, and is built into the Mac, so should be
>fast.
Just to clarify, the 3D routines that are mentioned in various places
on the mac are in a libray, not the ROM of the mac.  A few years ago before
I knew anything about implementing graphics, I came across a demo of the
Apple GrafSys3D library and it actually did a lot.  However, it is quite
limited in the sense that it's a low-level 3D library; your code still has
to plot individual points, draw each line, etc ad nauseum.  It has nothing
on GL, for example, where you can handle objects.
Other things to consider when talking about Apple's old 3D GrafSys library:
* Unsupported;  never was and no plans exist to do so in the future
* Undocumented; unless you call header files documentation...
If one knows something about graphics, you could probably figure it out,
but I'd assume there's better software available that gives better
output and is, at the same time, programmatically nicer (i.e. easier to
program).
Just my 2% tax
-Brent
From: jian@coos.dartmouth.edu (Jian Lu)
Subject: Grayscale Printer
Summary: image printer under $5000
Distribution: na
Organization: Dartmouth College, Hanover, NH
Lines: 6
We are interested in purchasing a grayscale printer that offers a good
resoltuion for grayscale medical images.  Can anybody give me some
recommendations on these products in the market, in particular, those
under $5000?
Thank for the advice.
From: tdawson@engin.umich.edu (Chris Herringshaw)
Subject: WingCommanderII Graphics
Organization: University of Michigan Engineering, Ann Arbor
Lines: 8
Distribution: world
NNTP-Posting-Host: antithesis.engin.umich.edu
I was wondering if anyone knows where I can get more information about
the graphics in the WingCommander series, and the RealSpace system they use.
I think it's really awesome, and wouldn't mind being able to use similar
features in programs.  Thanks in advance.
Daemon
From: kuryakin@bcstec.ca.boeing.com (Rick Pavek)
Subject: VISION-3D site and email unavailable
Organization: Boeing
Lines: 21
I used the information provided in the recent resource listings and
tried to ftp to:
ccu1.aukland.ac.nz [130.216.1.5]:  ftp/mac/architec - *VISION-3D facet
and received an 'unknown host' message.
mail to Paul D. Bourke (pdbourke@ccu1.aukland.ac.nz) bounces with basically
the same problem.
Where'd he go????
Rick
--
Rick Pavek                       | Never ask a droid to outdo its program.
kuryakin@bcstec.ca.boeing.com    |
Seattle, WA                      |   It wastes your time
|          and annoys the droid.
From: nfotis@ntua.gr (Nick C. Fotis)
Subject: (17 Apr 93) Computer Graphics Resource Listing : WEEKLY [part 2/3]
Lines: 1023
Reply-To: nfotis@theseas.ntua.gr (Nick (Nikolaos) Fotis)
Organization: National Technical Univ. of Athens
Archive-name: graphics/resources-list/part2
Last-modified: 1993/04/17
Computer Graphics Resource Listing : WEEKLY POSTING [ PART 2/3 ]
===================================================
Last Change : 17 April 1993
14. Plotting packages
=====================
Gnuplot 3.2
-----------
It is one of the best 2- and 3-D plotting packages, with
online help.It's a command-line driven interactive function plotting utility
for UNIX, MSDOS, Amiga, Archimedes, and VMS platforms (at least!).
Freely distributed, it supports many terminals, plotters, and printers
and is easily extensible to include new devices.
It was posted to comp.sources.misc in version 3.0, plus 2 patches.
You can practically find it everywhere (use Archie to find a site near you!).
The comp.graphics.gnuplot newsgroup is devoted to discussion of Gnuplot.
Xvgr and Xmgr (ACE/gr)
-----------------------
Xmgr is an XY-plotting tool for UNIX workstations using
X or OpenWindows. There is an XView version called xvgr for
Suns. Collectively, these 2 tools are known as ACE/gr.
Compiling xmgr requires the Motif toolkit version 1.1
and X11R4 - xmgr will not compile under X11R3/Motif 1.0x.
Check at ftp.ccalmr.ogi.edu [129.95.72.34} in
/CCALMR/pub/acegr/xmgr-2.09.tar.Z (Motif version)
/CCALMR/pub/acegr/xvgr-2.09.tar.Z (XView version)
Comments, suggestions, bug reports to Paul J Turner
<pturner@amb4.ese.ogi.edu> (if mail fails, try pturner@ese.ogi.edu).
Due to time constraints, replies will be few and far between.
Robot
-----
Release 0.45 : 2-D and limited 3-D. Based on XView 3, written
in C / Fortran (so you need a Fortran compiler or the f2c translator).
Mainly tested on Sun4, less on DECstations. Check at
ftp.astro.psu.edu (128.118.147.28),  pub/astrod.
VG plotting library
-------------------
This is a library of Fortran callable routines at sunspot.ceee.nist.gov
[129.6.64.151]
Xgobi
-----
It's being developed at Bellcore, and its speciality are
multidimensional data sets analysis and exploration. You can call it
from the S language also, and it works as an X11 client using the Athena
widget set (or with an ASCII terminal). It's distributed free of charge
from STATLIB at CMU.
To get it via e-mail, send email to statlib@temper.stat.cmu.edu and
in the body area of the message, put the line
send xgobi from general
If you want to pick it via ftp, connect to lib.stat.cmu.edu. Log in as
"statlib" and use your e-mail address as your password. Then type
cd general
mget xgobi.*
Warning: It's about 2 MB sources + large Postscript manual. Read the
relevant README to decide whether you need it or not.
PGPLOT
------
Runs on VAX/VMS and supposedly on UNIX. It's a set of fortran routines freely
available (though copyrighted and requiring a nominal fee of $50 or so)
that includes contour plots and support for various devices, including ps.
Contact tjp@deimos.caltech.edu
GGRAPH
------
Host shorty.cs.wisc.edu [128.105.2.8] : /pub/ggraph.tar.Z
Unknown more details.
epiGRAPH
--------
For PCs. Call dvj@lab2.phys.lgu.spb.su (Vladimir J. Dmitriev) for details.
You can get the program demo or (and) play version, if sent 10 $ to
1251 Budapest posta fiok 60
Hungary
ph/fax 1753696  Budapest
ph     2017760
Multiplot XLN
-------------
For Amigas, shareware ($30 USD, #20 UK or $40 Aust.). Advanced 2D package
that has a big list of features. Contact:
Dr. Alan Baxter <agb16@mbuc.bio.cam.ac.uk>,
Cambridge University
Department of Pathology,
Tennis Court Road,
Cambridge CB2 1QP, UK
+Athena Plotter Widget set
+-------------------------
+
+  This version V6.0 is based on Gregory Bond's version V5-beta. Added
+  some stuff for scientific graphs, i.e. log axes, free scalable axes,
+  XY-lineplots and some more, and re-added plotter callbacks from V4, e.g.
+  to request the current pointer position, or to cut off a rectangle from the
+  plotting area for zooming-in. Version V6.0 has a log of bugs fixed and a
+  log of improvements against V6-beta. Additionally I did some other
+  changes/extensions, besides
+
+      -     Origin and frame lines for axes.
+      -     Subgrid lines on subtic positions.
+      -     Line plots in different line types (lines, points, lines+points,
+       impulses, lines+impulses, steps, bars), line styles (solid, dotted,
+       dashed, dot-dashed) and marker types for data points.
+      -     Legend at the right or left hand side of the plot.
+      -     Optional drawing to a pixmap instead of a window.
+      -     Layout callback for aligning axis positions when using
+       multiple plotters in one application.
+
+  Available at export.lcs.mit.edu, directory contrib/plotter
+
+SciPlot
+-------
+  SciPlot is a scientific 2D plotting and manipulation program.
+  For the NeXT (requires NeXTStep 3.0), and it's shareware.
+
+  Features:
+  ASCII import and export;  EPS export; copy, cut, paste with data buffer;
+  free number of data points, data buffer, and document window;
+  selective open and save ; plotting in many styles; automatic legend;
+  subviews; linear and logarithmic axes; two different axes; text and graphic;
+  color support; zoom; normalizing and moving; axis conversions;
+  free hand data manipulations (cut, edit, move, etc.); data editor; sorting
+  of data; absolute,relative, and free defined error bars;
+  calculating with buffers (+, -, *, / ); background subtractions
+  (linear,shirley,tougaard, bezier); integration and relative integration;
+  fitting of one or more free defined functions; linear regression;
+  calculations (+, -, *, /, sin, cos, log, etc.); function generator;
+  spline interpolation; least square smooth and FFT smooth; differentiation;
+  FFT; ESCA calculations and database; .. and something more
+
+  You can find it on:
+  ftp.cs.tu-berlin.de [130.149.17.7] : /pub/NeXT/science/SciPlot3.1.tar.Z
+
+  Author:
+  Michael Wesemann
+  Scillerstr. 73,1000 Berlin 12, Germany
+  mike@fiasko.rz-berlin.mpg.de
+
+PLPLOT
+------
+  PLPLOT is a scientific plotting package for many systems, small (micro)
+  and large (super) alike.  Despite its small size and quickness,
+  it has enough power to satisfy most users, including:
+  standard x-y plots, semilog plots, log-log plots, contour plots, 3D plots,
+  mesh plots, bar charts and pie charts.  Multiple graphs (of the same or
+  different sizes) may be placed on a single page with multiple lines in each
+  graph.  Different line styles, widths and colors are supported.  A virtually
+  infinite number of distinct area fill patterns may be used.  There are
+  almost 1000 characters in the extended character set.  This includes four
+  different fonts, the Greek alphabet and a host of mathematical, musical, and
+  other symbols.  The fonts can be scaled to any size for various effects.
+  Many different output device drivers are available (system dependent),
+  including a portable metafile format and renderer.
+
+  Freely available (but copyrighted) via anonymous FTP on
+  hagar.ph.utexas.edu, directory pub/plplot
+
+  At present (v. 4.13), PLPLOT is known to work on the following systems:
+
+  Unix:   SunOS, A/IX, HP-UX, Unicos, DG/UX, Ultrix
+  Other platforms: VMS, Amiga/Exec, MS-DOS, OS/2, NeXT
+
+  Authors: Many. The main supporters are:
+
+  Maurice LeBrun <mjl@fusion.ph.utexas.edu>: PLPLOT kernel and the metafile,
+     xterm, xwindow, tektronix, and Amiga drivers.
+  Geoff Furnish <furnish@fusion.ph.utexas.edu>: MS-DOS and OS/2 drivers
+  Tony Richardson <amr@egr.duke.edu>: PLPLOT on the NeXT
+
+SuperMongo
+----------
+  2-D plotting package at CMU, filename ~re00/tmp/SM.2.1.0.tar.Z
+  (probably under the ftp.cmu.edu or andrew.cmu.edu machines?)
+
+GLE
+---
+  GLE is a high quality graphics package for scientists.  It runs on a
+  variety of platforms (PCs, VAXes, and Unix) with drivers for XWindows,
+  REGIS, TEK4010, PC graphics cards, VT100s, HP plotters, Postscript
+  printers, Epson-compatible printers and Laserjet/Paintjet printers.  It
+  provides LaTEX quality fonts, as well as full support for Postscript
+  fonts.  The graphing module provides full control over all features of
+  graphs.  The graphics primitives include user-defined subroutines for
+  complex pictures and diagrams.
+
+  Accompanying utilities include Surface (for hidden line surface
+  plotting), Contour (for contour plots), Manip (for manipulation of
+  columnar data files), and Fitls (for fitting arbitrary equations to
+  data).
+
+  Mailing list: GLEList. Send a message to
+
+  listserver@tbone.biol.scarolina.edu, with a message boyd containing
+
+  sub glelist "Your Name"
+
+ maintainer: Dean Pentcheff <dean2@tbone.biol.scarolina.edu>
==========================================================================
15. Image analysis software - Image processing and display
==========================================================
PC and Mac-based tools (multi-platform software)
======================
IMDISP
------
IMDISP Written at JPL and other NASA sites. Can do simple display,
enhancing, smoothing and so on. Works with the FITS and VICAR/PDS
data formats of NASA. Can read TIFF images, if you know their dimensions
[PC and Macs]
LabVIEW 2
---------
LabVIEW is used as a framework for image processing tools. It provides a
graphical programming environment using block diagram sketch is the
"program" with graphical elements representing the programming elements.
Hundreds of functions are already available and are connected using a
wiring tool to create the block diagram (program).  Functions that the
block diagrams represent include digital signal processing and
filtering, numerical analysis, statistics, etc.  The tool allows any
Virtual Instrument (VI, a software file that looks and acts like a real
laboratory instrument) to be used as a part of any other virtual
instrument.
National Instruments markets plug-in digital signal processing (DSP)
boards for Macintoshs and PC compatables that allow real-time
acquisition and analysis at a personal computer.  New software tools for
DSP are allowing engineers to harness the power of this technology. The
tools range from low-level debugging software to high-level block
diagram development software.  There are three levels of DSP programming
associated with the NB-DSP2300 board and LabVIEW:
Use of the NB-DSP2300 Analysis Library: FFTs, power spectra, filters
routines callable from THINK C and Macintosh Programers Workshop (MPW) C
that execute on the NB-DSP2300 board. There is an analysis Virtual
Interface Library of ready-to-use VIs optimized for the NB-DSP2300.
Use of the National Instruments Developers Toolkit that includes an
optimizing C compiler, an assembler and a linker for low-level
programming of the DSP hardware.  This approach offers the highest level
of performance but is the must difficult in terms of ease of use.
Use of the National Instruments Interface Kit software package which has
utility functions for memory management data communications and
downloading code to the NB-DSP2300 board. (This is the easiest route for
the development of custom code.)
Ultimage Concept VI
-------------------
Concept VI  by Graftek-France is a family of image processing Virtual
Instruments (VIs) that give LabVIEW 2 (described above) users high-end
tools for designing, integrating and monitoring imaging control systems.
A VI is a software file that looks and acts like a real laboratory
instrument. Typical applications for Concept VI include thermography,
surveillance, machine vision, production testing, biomedical imaging,
electronic microscopy and remote sensing.
Ultimage Concept VI addresses applications which require further
qualitative and quantitative analysis.  It includes a complete set of
functions for image enhancement, histogram equalization, spatial and
frequency filtering, isolation of features, thresholding, mathematical
morphology analysis, density measurement, object counting, sizing and
characterization.
The program loads images with a minimum resolution of 64 by 64, a pixel
depth of 8, 16, or 32 bits, and one image plane.  Standard input and
output formats include PICT, TIFF, SATIE, and AIPD.  Other formats can
be imported.
Image enhancement features include lookup table transformations, spatial
linear and non-linear filters, frequency filtering, arithmetic and logic
operations, and geometric transformations, among others.  Morphological
transformations include erosion, dilation, opening, closing, hole
removal, object separation, and extraction of skeletons, among others.
Quantitative analysis provides for objects' detection, measurement, and
morphological distribution.  Measures include area, perimeter, center of
gravity, moment of inertia, orientation, length of relevant chords, and
shape factors and equivalence.  Measures are saved in ASCII format.  The
program also provides for macro scripting and integration of custom
modules.
A 3-D view command plots a perspective data graph where image intensity
is depicted as mountains or valleys in the plot.  The histogram tool can
be plotted with either a linear or logarithmic scale. The twenty-eight
arithmetic and logical operations provide for: masking and averaging
sections of images, noise removal, making comparisons, etc.  There are
13 spatial filters that alter pixel intensities based on local
intensity.  These include high-pass filters for contrast and outlines.
The frequency data resulting from FFT analysis can be displayed as
either the (real , imaginary ) components or the (phase, magnitude)
data.  The morphological transformations are useful for data sharpening
and defining objects or for removing artifacts.
The transformations include: thresholding, eroding, dilating and even
hole filling.
The program's quantitative analysis measurements include: area,
perimeter, center of mass, object counts, and angle between points.
GTFS, Inc. 2455 Bennett Valley Road #100C Santa Rosa, CA 95494
707-579-1733
IPLab Spectrum
--------------
IPLAB Spectrum supports image processing and analysis but lacks the
morphology and quantitative analysis features provided by
Graftek-FranceUs Ultimage Concept VI.  Using scripting tools, the user
tells the system the operations to be performed. The problem is that far
too many basic operations require manual intervention. The tool
supports: FFTs, 16 arithmetic operations for pixel alteration, and a
movie command for cycling through windows.
Macintosh-based tools
=====================
NCSA Image, NCSA PalEdit and more
---------------------------------
NCSA provides a whole suite of public-domain visualization tools for the
Macintosh, primarily aimed at researchers wanting to visualize results
from numerical modelling calculations.  These applications,
documentation, and source code are available for anonymous ftp from
ftp.ncsa.uiuc.edu. Commercial versions of the NCSA programs have been
developed by Spyglass.
Spyglass, Inc. 701 Devonshire Drive Champaign, IL  61820 (217) 355-6000
fax: 217 355 8925
NIH IMAGE
---------
Available at alw.nih.gov (128.231.128.7) or (preferably)
zippy.nimh.nih.gov [128.231.98.32], directory:/pub/image.
It has painting and image manipulation tools, a macro language,
tools for measuring areas, distances and angles, and for counting
things. Using a frame grabber card, it can record sequences of
images to be played back as a movie. It can invoke user-defined
convolution matrix filters, such as Gaussian. It can import raw
data in tab-delimited ASCII, or as 1 or 2-byte quantities. It also
does histograms and even 3-D plots. It is limited to 8-bits/pixel,
though the 8 bits map into a color lookup table. It runs on any Mac
that has a 256-color screen and a FPU (or get the NonFPU version
from zippy.nimh.nih.gov)
PhotoMac
--------
Data Translation, Inc. 100 Locke Dr. Marlboro, MA 01752 508-481-3700
PhotoPress
----------
Blue Solutions 3039 Marigold Place Thousand Oaks, CA 91360 805-492-9973
PixelTools and TCL-Image
------------------------
"Complete family of PixelTools (hardware accelerator and applications
software) for scientific image processing and analysis.  Video-rate
capture, display, processing, and analysis of high-resolution
monochromatic and color images.  Includes C source code."
TCL-Image:
"Software package for scientific, quantitative image processing and
analysis. It provides a complete language for the capture, enhancement,
and extraction of quantitative information from gray-scale images.
TCL_Image has over 200 functions for image processing, and contains the
other elements needed in a full programming language for algorithm
development -- variables and control structures.  It is easily
extensible through "script" (or indirect command) files. These script
files are simply text files that contain TCL-Image commands.  They are
executed as normal commands and include the ability to pass parameters.
The direct capture of video images is supported via popular frame
grabber boards.  TCL-Image comes with the I-View utility that provides
conversion between common image file types, such as PICT2 and TIFF."
Perceptics 725 Pellissippi Parkway Knoxville, TN 37933 615-966-9200
Satellite Image Workshop
------------------------
It comes with a number of satellite pictures (raw data) and does all
sorts of image enhancing on it. You'll need at least a Mac II with co-
processor; a 256 color display and a large harddisk. The program doesn't
run under system 7.x.ATE1 V1
In the documentation the contact address is given as:  Liz Smith, Jet
Propulsion Laboratory, MS 300-323, 4800 Oak Grove Dr,.Pasadena, CA 91109
(818) 354-6980
Visualization Workbench
-----------------------
"An electronic imaging software system that performs interactive image
analysis and scientific 2D and 3D plotting."
Paragon Imagine 171 Lincoln St. Lowell, MA 01852 508-441-2112
Adobe Photoshop
---------------
The tool supports Rtrue colorS with 24-bit images or 256 levels of grey
scale.  Once an image has been imported it can be Rre-touchedS with
various editing tools typical of those used in Macintosh-based RpaintS
applications.  These include an eraser, pencil, brush and air brush.
Advanced RpasteS tools that control the interaction between a pasted
selection and the receiving site have also been incorporated.  For
example, all red pixels in a selection can easily be preventing from
being pasted. Photoshop has transparencies ranging from 0 to 100%,
allowing you to create ghost overlays.  RPhoto-editingS tools include
control of the brightness and contrast, color balancing, hue/saturation
modification and spectrum equalization.  Images can be subjected to
various signal processing algorithms to smooth or sharpen the image,
blur edges, or locate edges.  Image scaling is also supported.
For storage savings, the images can be compressed using standard
algorithms, including externally supplied compression such as JPEG,
availlable from Storm Technologies. The latest version of Adobe
Photoshop supports the import of numerous image formats including: EPSF,
EPSF, TIFF, PICT resource, Amiga IFF/ILBM, CompuServe GIF, MacPaint,
PIXAR, PixelPaint, Scitex CT, TGA and ThunderScan..
Adobe Systems, Inc. 1585 Charlestown Road PO Box 7900 Mountain View, CA
94039-7900 415-961-4400
ColorStudio and ImageStudio
---------------------------
ColorStudio is an image-editing and paint package from Letraset that has
more features than Adobe Photoshop but is decidedly more complex and
therefore more difficult to use.  Several steps are often required to
accomplish that which can be done in a single step using Photoshop.  The
application requires a great deal of available disk space as one can
easily end up with images in the 30 MB range.  The program provides a
variety of powerful selection tools including the "auto selection tool"
which lets the user choose image areas on the basis of color, close
hues, color range and mask.
ImageStudio: Don't know...
Letraset USA 40 Eisenhower Drive Paramus, NJ 07653 201-845-6100
Dapple Systems
--------------
"High resolution image analysis software provides processing tools to
work with multiple images, enhance and edit, and measure a variety of
global or feature parameters, and interpret the data."
Dapple Systems, 355 W. Olive Ave, #100 Sunnyvale, CA 94086 408-733-3283
Digital Darkroom
----------------
The latest release of Digital Darkroom has five new selection and
editing tools for enhancing images. One such feature allows the user to
select part of an image simply by "painting" it. A new polyline
selection tool creates a selection tool for single pixel wide
selections.  A brush lets the operator "paint" with a selected portion
of the image. Note that this is not a true color image enhancement tool.
This tool should be used when the user intends to operate in grey-scale
images only.  It should be noted that Digital Darkroom is not as
powerful as either Adobe Photoshop or ColorStudio.
Silicon Beach Software 9770 Carroll Ctr. Rd., Suite J San Diego, CA
92126 619-695-6956
Dimple
------
It  is compatible with system 6.05 and system 7.0 , requires Mac LC or
II series with 256 colours, with a recommended min of 6Mb of ram. It has
the capability of reading Erdas files. Functions include; image
enhancement, 3D and contour plots, image statistics, supervised and
unsupervised classification, PCA and other image transformations. There
is also a means (Image Operation Language or IOL) by which you can write
your own transformations. There is no image rectification, however
Dimple is compatable with MAPII. The latest version is 1.4 and it is in
the beta stage of testing. Dimple was initially developed as a teaching
tool and it is very good for this purpose."
"Dimple  runs on a colour Macintosh.  It is a product still in its
development phase.. i.e. it doesn't have all the inbuilt features of
other packages, but is coming along nicely.  It has its own inbuilt
language for writing "programs" for processing an image, defining
convolution filters etc. Dimple is a full mac application with pull down
menus etc... It is unprotected software."
Process Software Solutions, PO Box 2110, Wollongong, New South Wales,
Australia. 2500. Phone 61 42 261757  Fax 61 42 264190.
Enhance
-------
Enhance has a RrulerS tool that supports measurements and additionally
provides angle data. The tool has over 80 mathematical filter
variations: "Laplacian, medium noise filter", etc.  Files can be saved
as either TIFF, PICT, EPSF or text (however EPSF files can't be imported).
MicroFrontier 7650 Hickman Road Des Moines, IA  50322 515-270-8109
Image Analyst
-------------
An image processing product for users who need to extract quantitative
data from video images.  Image Analyst lets users configure
sophisticated image processing and measurement routines without the
necessity of knowing a programming language.  It is designed for such
tasks at computing number and size of cells in images projected by video
cameras attached to microscopes, or enhancing and measuring distances in
radiographs.
Image Analyst provides users with an array of field-proven video
analysis techniques that enable them to easily assemble a sequence of
instructions to enhance feature appearance; count objects; determine
density, shape, size, position, or movement; perform object feature
extraction; and conduct textural analysis automatically.  Image Analyst
works with either a framegrabber board and any standard video camera, or
a disk-stored image.
Within minutes, without the need for programming, the Image Analyst user
can set up a process to identify and analyze any element of a image.
Measurements and statistics can be automatically or semi-automatically
generated from TIFF or PICT files or from captured video tape images.
Image Analyst recognizes items in images based on their size, shape and
position.  The tool provides direct support for the Data Translation and
Scion frame grabbers. A menu command allows for image capture from a VCR
video camera or other NTSC or PAL devices.
There are 2 types of files, the image itself and the related Sequence
file that holds the processing, measurements and analysis that the user
defines.  Automated sequences are set up in Regions Of Interest (ROI)
represented by movable, sizable boxes atop the image.  Inside a ROI, the
program can find the distance between two edges, the area of a shape,
the thickness of a wall, etc.  Image Analyst finds the center, edge and
other positions automatically. The application also provides tools so
that the user can work interactively to find the edge of object. It also
supports histograms and a color look-up table (CLUT) tool.
Automatix, Inc. 775 Middlesex Turnpike Billerica, MA 01821 508-667-7900
IPLab
-----
Signal Analytics Corp. 374 Maple Ave. E Vienna, VA  22180 703-281-3277
FAX 703-281-2509
"Menu-driven image processing software that supports 24-bit color or
pseudocolor/grayscale image display and manipulation."
MAP II
------
Among the Mac GIS systems, MAP II distributed by John Wiley has
integrated image analysis.
IMAGE
-----
from Stanford : Try anonymous ftp from sumex-aim.stanford.edu
It has pd source for image v2, and ready to run code for a mac under
image v3.
Windows/DOS PC-based tools
==========================
CCD
---
Richard Berry's CCD imaging book for Willamon-Bell contains (optional?)
disks with image manipulating software.  Source code is included.
ERDAS
-----
"ERDAS will do all of the things you want:  rectification,
classification, transformations (canned & user-defined), overlays,
filters, contrast enhancement, etc. ... I was using it on my thesis &
then changed the topic a bit & that work became secondary."
ERDAS, Inc. 2801 Buford Highway Suite 300 Atlanta, GA 30329 404-248-9000
FAX   404-248-9400
RSVGA
-----
"I have been getting up to speed on a program called RSVGA available from
Eidetic Digital Image Ltd. in British Columbia.  Its for IBM PC's or
clones, cheap (about $400) and does all the stuff Erdas does but is not
as fast or as powerful, though I have had only limited experience with
Erdas.  I have used RSVGA with 6 of 7 Landsat bands and it is a good
starter program except for the obtuse manual"
IMAGINE-32
----------
It's a 32 bit package [I suppose for PCs] called "Imagine32"
or "Image32" The program does a modest amount of image processing --add,
subtract, multiply, divide, display, and plot an x or y cut across the image.
It can also display a number of images simultaneously.
The company is CompuScope, in Santa Barbara, CA.
PC Vista
--------
It was announced in the 1989 August edition of PASP.  It is known to
be available from Mike Richmond, whose email addresses have been
richmond@bllac.berkeley.edu
richmond@bkyast.berkeley.edu
and his s-mail address is:
Michael Richmond,Astronomy Department, Campbell Hall, Berkeley, CA 94720
The latest version of PC-Vista, version 1.7, includes not only the source
code and help files, but also a complete set of executable programs and
a number of sample FITS images. If you do wish to use the source code,
you will need Microsoft C, version 5.0 or later; other compilers may work,
but will require substantial modifications.
To receive the documentation and nine double-density (360K) floppies
(or three quad-density 3-1/2 inch floppies (1.44M) with everything on them,
just send a request for PC-Vista, together with your name and a US-Mail
address, to
Office of Technology Licensing
2150 Shattuck Ave., Suite 510
Berkeley, Ca. 94704
Include a check (Traveller's Checks are fine) or purchase order for $150.00
in U.S. dollars, if your address is inside the continental U.S., or $165.00
otherwise, made out to Regents of the University of California
to cover duplication and mailing costs.
SOFTWARE TOOLS
--------------
It's a set of software "tools" put out by Canyon State
Systems and Software. They are not free, but rather cheap at about $30 I
heard. It will handle most all of the formats used by frame grabber
software.
MIRAGE
------
It's image processing software written by Jim Gunn at the
Astrophysics Dept at Princeton. It will run on a PC among other platforms.
It is a Forth based system - i.e. a Forth language with many image
processing displaying functions built in.
DATA TRANSLATION SOURCE BOOK
----------------------------
The Data Translation company in Massachusetts publishes a free book
containing vendors of data analysis hardware and software which is
compatible with Data Translation and other frame grabbers.
Surely you can find much more PC-related stuff in it.
MAXEN386
--------
A couple of Canadians have written a program named MAXEN386 which does
maximum entropy image deconvolution. Their company is named Digital
Signal Processing Software, or something like that, and the software is
mentioned in an article in Astronomy Magazine, either Jan or Feb 92
(an article on CCD's vs film).
JANDEL SCIENTIFIC (JAVA)
------------------------
Another software package (JAVA) is put out by Jandel Scientific.
Jandel Scientific, 65 Koch Road, Corte Madera, CA 94925, (415) 924-8640,
(800) 874-1888.
Microbrian
----------
Runs on an MS dos platform and uses a 32 bit graphics card
(Vista), or an about to be released version will support a number of
super VGA cards.  Its a full blown remote sensed data processing
system.. It is menu driven (character based screen), but is does not use
a windowed user interface. Its is hardware protected with a dongle.
Mbrian = micro Barrier reef Image Anaysis System. It was developed by
CSIRO (Commonwealth Scientific & Industrial Organization) and is
marketed/ supported by:
MPA Australia (51 Lusher Road, Croydon, Victoria
tel + 61 3 724 4488     fax  +61 3 724 4455)
There are educational and commercial prices, but be prepared to set
aside $A10k for the first educational licence.  Subsequent ones come
cheaper (they need to!) It has installed sites worldwide.  It is widely
used at ANU.
MicroImage
----------
The remote sensing lab here at Dartmouth currently uses Terra-Mar's
MicroImage, on 486 PCs with some fancy display hardware.
Terra-Mar Resource Information Services, Inc.
1937 Landings Drive Mountain View, CA  94043 415-964-6900   FAX
415-964-5430
Unix-based tools
================
IRAF (Image Reduction and Analysis Facility)
--------------------------------------------
Developed in the National Optical Astronomy Observatory, Kitt Peak AZ
It is free, you can ftp it from tucana.noao.edu [140.252.1.1]
and complement it with STSDAS from stsci.edu [130.167.1.2].
Email to iraf@noao.edu for more details.
Apparently this is one of the _de facto_ standards in the astronomical
image community. They issue a newsletter also.
They seem to support very well their users. Works with VMS also last
I heard, and practically has its own shell on top of the VMS/Unix shells.
It's suggested that you get a copy of saoimage for display under X windows.
Very flexible/extendable  -- tons (literally 3 linear feet) of
documentation for the general user, skilled user, and programmer.
ALV
---
A Sun-specific image toolkit.  Version 2.0.6 posted to
comp.sources.sun on 11dec89.  Also available via email to
alv-users-request@cs.bris.ac.uk.
AIPS
----
Astronomical Image Processing System.  Contact: aipsmail@nrao.edu
(also see the UseNet Newsgroups alt.sci.astro.aips and sci.astro.fits)
Built by NRAO (National Radio Astronomy Observatory, HQ in Charlottesville,
VA, sites in NM, AZ, WV).  Software distributed by 9-track, Exabyte, DAT,
or (non-anonymous) internet ftp.  Documentation (PostScript mostly)
available via anonymous ftp to baboon.cv.nrao.edu (192.33.115.103),
directory pub/aips and pub/aips/TEXT/PUBL.  Installation requires building
the system and thus a Fortran and C compiler.
This package can read and write FITS data (see sci.astro.fits), and is
primarily for reduction, analysis, and image enhancement of Radio Astronomy
data from radio telescopes, particularly the Very Large Array (VLA), a
synthesis instrument.  It consists of almost 300 programs that do everything
from copying data to sophisticated deconvolution, e.g. via maximum entropy.
There is an X11-based Image tool (XAS) and a tek-compatible xterm-based
graphics tool built into AIPS.  The XAS tool is modelled after the hardware
functionality of the International Imaging Systems model 70 display unit and
can do image arithmetic, etc.
The code is mostly Fortran 77 with some system C language modules, and is
available for Suns, IBM RS/6000, Dec/Ultrix, Convex, Cray (Unicos), and
Alliant with support planned for HP-9000/7xx, Solaris 2.1, and maybe SGI.
There is currently a project - "AIPS++" - underway to rewrite the
algorithmic functionality of AIPS in a modern setting, using C++ and an
object oriented approach.  Whereas AIPS is proprietary code (licensed for
free to non-profit institutions) owner by NRAO and the NSF, AIPS++ will be
in the public domain at some level, as it is an international effort with
contributions from the US, Canada, England, the Netherlands, India, and
Australia to name a few.
LABOimage
---------
(version 4.0 is out for X11) It's written in C, and currently
runs on Sun 3/xxx, Sun 4/xxx (OS3.5, 4.0 and 4.0.3) under SunView.
The expert system for image segmentation is written in Allegro Common Lisp.
It was used on the following domains: computer science (image analysis),
medicine, biology, physics. It is distributed free of charge (source code).
Available via anonymous FTP at ftp.ads.com (128.229.30.16), in
pub/VISION-LIST-ARCHIVE/SHAREWARE/LaboImage_*
Contact: Prof. Thierry Pun, Computer Vision Group Computing Science Center,
U-Geneva 12, rue du Lac, CH-1207 Geneva SWITZERLAND
Phone : +41(22) 787 65 82; fax: +41(22) 735 39 05
E-mail: pun@cui.unige.ch  or pun@cgeuge51.bitnet
Figaro
------
It was originally made for VMS, and can be obtained from
Keith Shortridge in Australia (ks@aaoepp.aao.gov.au)
and for Unix from Sam Southard at Caltech (sns@deimos.caltech.edu).
It's about 110Mbytes on a Sun.
KHOROS
------
Moved to the Scientific  Visualization category below
Vista
-----
The "real thing" is available via anonymous ftp from lowell.edu. Email to
vista@lowell.edu for more details. Total size less than 20Mbytes.
DISIMP
------
(Device Independent Software for Image Processing) is a powerful
system providing both user friendliness and high functionality in
interactive times.
Feature Description
DISIMP incorporates a rich library of image processing utilities and
spatial data options. All functions can be easily accessed via the
DISIMP executive. This menu is modular in design and groups image
processes by their function. Such a logical structure means that
complicated processes are simply a progression through a series of
modules.
Processes include image rectification, classification (unsupervised and
supervised), intensity transformations, three dimensional display and
Principal Component Analysis. DISIMP also supports the more simple and
effective enhancement techniques of filtering, band subtraction and
ratioing.
Host Configuration Requirements
Running on UNIX workstations, DISIMP is capable of processing the more
computational intensive techniques in interactive processing times.
DISIMP is available in both Runtime and Programmer's environments. Using
the Programmers environment, utilities can be developed for specific
applications programs.
Graphics are governed by an icon-based Display Panel which allows quick
enhancments of a displayed image. Manipulations of Look Up Tables,
colour stretches, changes to histograms, zooming and panning can be
interactively driven through this control.
A range of geographic projections enables DISIMP to integrate data of
image, graphic and textual types. Images can be rectified by a number of
coordinate systems, providing the true geographic knowledge essential
for ground truthing. Overlays of grids, text and vector data can be
added to further enhance referenced imagery.
The system is a flexible package allowing users of various skill levels
to determine their own working environment, including the amount of help
required. DISIMP comes fully configured with no optional extras. The
purchase price includes all functionality required for professional
processing of remote sensed data.
For further information, please contact:
The Business Manager, CLOUGH Engineering Group Systems Division, 627
Chapel Street, South Yarra, Australia 3141. Telephone:  +61 3 825 5555
Fax:  +61 3 826 6463
Global Imaging Software
-----------------------
"We use Global Imaging Software to process AVHRR data, from the dish to
the final display. Select a chunk of five band data from a pass,
automatic navigation, calibrate it to Albedo and Temp, convert that to
byte, register it to predesigned window, all relatively automatically
and carefree.
It has no classification routines to speak of, but it isn't that
difficult to write your own with their programmer's module.
Very small operation: one designs, one codes, one sells. Been around for
a number of years, sold to Weather Service and Navy.  Runs on HP9000
with HP-UX.  Supports 24-bit display"
HIPS
----
(Human   Information   Processing Laboratory's Image Processing System)
Michael Landy co-wrote and sell a general-purpose package for image
processing which has been used for basically all the usual image
processing applications (robotics, medical, satellite, engineering, oil
exploration, etc.).  It is called HIPS, and deals with sequences of
multiband images in the same way it deals with single images.  It has
been growing since we first wrote it, both by additions from us as well
as a huge user-contributed library.
Feature description
HIPS  is  a  set  of  image  processing  modules  which together provide
a  powerful  suite  of  tools  for  those interested in research,
system  development  and  teaching. It  handles  sequences  of  images
(movies)  in precisely the same manner as single frames.
Programs and subroutines have been developed  for simple image
transformations, filtering, convolution, Fourier and other transform
processing, edge detection  and line  drawing   manipulation, digital
image compression and transmission  methods, noise generation, and image
statistics computation. Over 150 such  image transformation programs
have been developed.  As a result, almost any image processing  task
can be performed quickly and conveniently. Additionally, HIPS allows
users to easily integrate  their  own custom  routines.   New users
become effective using HIPS on their first day.
HIPS features images that are  self-documenting.   Each image stored  in
the  system  contains  a  history  of the transformations that have been
applied to that image.   HIPS includes  a  small  set of subroutines
which primarily deals with a standardized  image sequence  header,  and
a  large library  of  image  transformation tools in the form of UNIX
``filters''.  It comes complete with source  code,  on-line manual
pages, and on-line documentation.
Host Configuration Requirements
Originally  developed at  New  York  University,  HIPS  now represents
one of the most extensive and flexible vision and image  processing
environments currently available.  It runs under the UNIX operating
system.  It is modular  and  flexible, provides automatic documentation
of its actions, and is almost entirely independent of special equipment.
HIPS is now in use on a variety of computers including Vax and
Microvax, Sun, Apollo,  Masscomp,  NCR Tower, Iris, IBM AT, etc.
For image display and input, drivers are supplied for the Grinnell and
Adage (Ikonas) image processors, and the Sun-2, Sun-3, Sun- 4, and
Sun-386i consoles.  We also  supply  user-contributed drivers  for  a
number of  other framestores and windowing packages (Sun gfx, Sun
console, Matrox VIP-1024, ITI IP-512, Lexidata,  Macintosh II, X
windowing system, and Iris).  The Hipsaddon package includes an
interface  for the  CRS-4000. It  is  a  simple matter to interface HIPS
with other frame- stores, and we can put interested users in touch with
users who  have interfaced HIPS with the Arlunya and Datacube Max-
Video. HIPS can be easily adapted for other  image  display devices
because 98% of HIPS is machine independent.
Availability
HIPS has proven itself a highly flexible  system,  both as  an
interactive  research tool, and for more production- oriented tasks. It
is both easy to use, and quickly adapted and extended to new uses. HIPS
is supplied on magnetic tape in UNIX tar format (either reel- to-reel or
Sun  cartridge), and comes with source code, libraries, a library of
convolu- tion masks, and on-line documentation and manual pages.
Michael Landy SharpImage Software P.O. Box 373, Prince Street Station
New York, NY   10012-0007 Voice:  (212) 998-7857 Fax: (212) 995-4011
msl@cns.nyu.edu
MIRA
----
[ Please DON'T confuse that with the Thalmanns animation system from
Montreal. These are altogether different beasts! - nfotis ]
MIRA stands for Microcomputer Image Reduction and Analysis.  MIRA gives
workstation level performance on 386/486 DOS computers using SVGA cards in
256 color modes up to 1024x768. MIRA contains a very handsome/functional
GUI which is mouse and keystroke operated. MIRA reads/writes TIFF and FITS
formats, native formats of a number of CCD cameras, and uncompressed binary
images in byte, short integer, and 4-byte real pixel format in 1- or 2-
dimensions. The result of an image processing operation can be short integer
or real pixels, or the same as that of the input image. MIRA does the
operation using short or floating point arithmetic to maintain the precision
and accuracy of the pixel format. Over 100 functions are hand-coded in
assembly language for maximum speed on the Intel hardware.  The entire
graphical interface is also written in assembly language to maximize
the speed of windowing operations.  Windows for 2-d image and 1-d image/data
display and analysis have dedicated cursors which read position and value
value in real time as you move the mouse.  There are also smooth, real time
contrast and brightness stretch and panning of a magnified portion of
the displayed image(s), all operated by the mouse. A wide selection of
grayscale, pseudocolor, and random palettes is provided, and other
palettes can be generated.
Supported functions include such niceties as the following:
o  image & image: + - / * interpolation
o  image & constant: + - / *
o  unary operations: abs value, polynomial of pixel value, chs, 1/x, log,
byteswap, clip values at upper/lower limits, short->real or real->short.
o  combine images by mean, median, mode, or sum of pixel values, with or
without autoscaling to mean, median, or mode of an image section.
o  convolutions/filters: Laplacian, Sobel edge operator, directional gradient,
line, Gaussian, elliptical and rectangular equal weight filters, unsharp
masking, median filters, user defined filter kernel.  Ellipse, rectangle,
line, gradient, Gaussian, and user defined filters can be rotated to
any specified angle.
o  CCD data reduction: flat fielding, dark subtraction, column over/underscan
bias removal, remove bad pixels and column defects, normalize to
region target mean, median, or modal value.
o  create subimage, mosaic m x n 1-d or 2-d images to get larger image,
collapse 2-d image into 1-d image.
o  plot 1-d section or collapsed section of 2-d image, plot histogram of
region of an image.
o  review/change image information/header data, rename keywords, plot
keyword values for a set of images.
o  luminance/photometry: elliptical or circular aperture photometry,
brightness profile, isophotal photometry between set of upper & lower
luminances, area and luminance inside traced polygon. Interactive
background fitting and removal from part or all of image, fit elliptical
aperture shape to image isophotes.
o  interactive with 2-d image: contrast/brightness, x- y- or diagonal plot
of pixel values, distance between two points, compute region stats,`
centroid, pan to x,y location or image center, zoom 1/16 to 10 times,
change cursor to rectangle crosshair, full image crosshair, or off, and
adjust cursor size on image. Select linear, log or gamma transfer function
or histogram equalization.
o  interactive or specified image offset computation and re-sampling for
registration.
o  interactive with 1-d image: zoom in x- y- or both in steps of 1/2 or
2 times current, re-center plot, or enlarge a framed area. 4 plot buffers
can be cycled through. Interactive data analysis: polynomial fitting,
point deletion, undelete, change value, point weighting, linear and
quadratic loess and binomial smoothing, revert to unit point weights
or original data buffer, substitute results into data buffer for pass
back to calling function. Dump data buffer (+ overlays and error bars)
to file or printer.  Change to user specified coordinate system.
o  Tricolor image combination and display, hardcopy halftone printout to
HP-PCL compatible printers (Laserjet, deskjet, etc.)
o  Documentation is over 300 pages in custom vinyl binder.
Cost: 995 $USD/copy
Available from:
Axiom Research, Inc.
Box 44162
Tucson, AZ  85733
(602) 791-2864  phone/fax.
international marketing rep: Saguaro Scientific Corporation, Tucson, Arizona.
==========================================================================
End of Part 2 of the Resource Listing
--
Nick (Nikolaos) Fotis         National Technical Univ. of Athens, Greece
HOME: 16 Esperidon St.,       InterNet : nfotis@theseas.ntua.gr
Halandri, GR - 152 32   UUCP:    mcsun!ariadne!theseas!nfotis
Athens, GREECE          FAX: (+30 1) 77 84 578
From: nfotis@ntua.gr (Nick C. Fotis)
Subject: (17 Apr 93) Computer Graphics Resource Listing : WEEKLY [part 3/3]
Lines: 1529
Reply-To: nfotis@theseas.ntua.gr (Nick (Nikolaos) Fotis)
Organization: National Technical Univ. of Athens
Archive-name: graphics/resources-list/part3
Last-modified: 1993/04/17
Computer Graphics Resource Listing : WEEKLY POSTING [ PART 3/3 ]
===================================================
Last Change : 17 April 1993
11. Scene generators/geographical data/Maps/Data files
======================================================
DEMs (Digital Elevation Models)
-------------------------------
DEMs (Digital Elevation Models) as well as other cartographic data
[huge] is available from spectrum.xerox.com [192.70.225.78], /pub/map.
Contact:
Lee Moore -- Webster Research Center, Xerox Corp. --
Voice: +1 (716) 422 2496
Arpa, Internet:  Moore.Wbst128@Xerox.Com
[ Check also on ncgia.ucsb.edu (128.111.254.105), /pub/dems -- nfotis ]
Many of these files are also available on CD-ROM selled by USGS:
"1:2,000,000 scale  Digital Line Graph (DLG) Data". Contains datas
for all 50 states. Price is about $28, call to or visit in offices
in Menlo Park, in Reston, Virginia (800-USA-MAPS).
The Data User Services Division of the Bureau of the Census also has
data on CD-ROM (TSO standard format) that is derived from USGS
1:100,000 map data. Call (301) 763-4100 for more info or they have
a BBS at (301) 763-1568.
[ From Dr.Dobbs #198 March 1993: ]
"The U.S. Defense Mapping Agency, in cooperation with their counterpart
agencies in CANADA, the U.K., and Australia, have released the Digital Chart
of the World (DCW). This chart consists of over 1.5 gigabytes of reasonable
quality vector data distributed on four CD-ROMS. .... includes coastlines,
rivers, roads, railrays, airports,cities, towns, spot elevations, and depths,
and over 100,000 place names."
It is ISO9660 compatible and only $200.00 available from:
U.S. Geological Survey
P.O. Box 25286
Denver Federal Center
Denver, CO 80225
Digital Distribution Services
Energy, Mines, and Resources Canada
615 Booth Street
Ottawa, ON
K1A 0E9 Canada
Director General of Military Survey
(Survey 3)
Elmwood Avenue
Feltham, Middlesex
TW13 7AH United Kingdom
Director of Survey, Australian Army
Department of Defense
Campbell Park Offices (CP2-4-24)
Campbell ACT 2601 Australia
Fractal Landscape Generators
----------------------------
Public Domain:
Many people have written fractal landscape generators. for example
for the Mac some of these generators were written by
pdbourke@ccu1.aukuni.ac.nz (Paul D. Bourke).
Many of the programs are available from the FTP sites and mail
archive servers. Check with Archie.
Commercial:
Vista Pro 3.0 for the Amiga from Virtual Reality Labs -- list price
is about $100. Their address is:
VRL
2341 Ganador court
San Luis Obispo,
CA 93401
Telephone or FAX (805) 545-8515
Scenery Animator (also for the Amiga) is of the same caliber with Vista Pro 2.
Check with:
Natural Graphics
P.O. Box 1963
Raklin, CA 95677
Phone (916) 624-1436
Don't forget to ask about companion programs and data disks/tapes.
Vista Pro 3 has been ported to the PCs.
CIA World Map II
----------------
[  NOTE: this database is quite out of date, and not topologically structured.
If you need a standard for world cartographic data, wait for the
Digital Chart of the World. This 1:1M database has been produced from
the Defense Mapping Agency's ONCs and will be available, together with
searching and viewing software, on a number of CD-ROMs later this summer. ]
Check into HANAUMA.STANFORD.EDU and UCSD.EDU (see ftp list above)
The CIA database consists of coastlines, rivers and political boundaries
in the form of line strokes. Also on hanauma.stanford.edu is a 720x360
array of elevation data, containing one ieee floating point number for
every half degree longitude and latitude.
A program for decoding the database, mfil, can be found on the machine
pi1.arc.umn.edu (137.66.130.11).
There's another program, which reads a compressed CIA Data Bank file and
builds a PHIGS hierachical structure. It uses a PHIGS extension known as
polyline sets for performance, but you can use regular polylines. Ask
Joe Stewart <joes@lpi.liant.com>.
The raw data at Stanford require the vplot package to be able to view it.
(was posted in comp.sources.unix). To be more exact, you'll have to
compile just the libvplot routines, not the whole package.
NCAR data
---------
NCAR (National Center for Atmospheric Research) has many types of
terrain  data, ranging from elevation datasets at
various resolutions, to information about soil types, vegetation, etc.
This data is not free -- they charge from $40 to $90 or more, depending
on the data volume and media (exabyte tape, 3480 cartridge, 9-track tape,
IBM PC floppy, and FTP transfer are all available).  Their data archive
is mostly research oriented, not hobbyist oriented.  For more information,
email to ilana@ncar.ucar.edu.
UNC data tapes with voxel data
--------------
There are 2 "public domain" tapes with data for the comparison and
testing of various volume rendering algorithms (mainly MRI and CT
scans). These tapes are distributed by the SoftLab of UNC @ Chapel Hill.
(softlab@cs.unc.edu)
The data sets (volume I and II) are also available via anonymous FTP from
omicron.cs.unc.edu [128.109.136.159] in pub/softlab/CHVRTD
NASA
----
Many US agencies such as NASA publish CD-ROMs with many altimetry data
from various space missions, eg. Viking for Mars, Magellan for Venus,
etc. Especially for NASA, I would suggest to call the following
address for more info:
National Space Science Date Center
Goddard Space Flight Center
Greenbelt, Maryland 20771
Telephone: (301) 286-6695
Email address:  request@nssdca.gsfc.nasa.gov
The data catalog (*not* the data itself) is available online.
Internet users can telnet to nssdca.gsfc.nasa.gov (128.183.10.4) and log
in as 'NODIS' (no password).
You can also dial in at (301)-286-9000 (300, 1200, or 2400 baud, 8 bits,
no parity, one stop). At the "Enter Number:" prompt, enter MD and
carriage return. When the system responds "Call Complete," enter a few
more carriage returns to get the "Username:" and log in as 'NODIS' (no
password).
NSSDCA is also an anonymous FTP site, but no comprehensive list of
what's there is available at present.
Earth Sciences Data
-------------------
There's a listing of anonymous FTP sites for earth science data, including
imagery. This listing is called "Earth Sciences Resources on Internet",
and you can get it via anonymous FTP from csn.org [128.138.213.21]
in the directory COGS under the name "internet.resources.earth.sci"
Some sites include:
aurelie.soest.hawaii.edu [128.171.151.121]: pub/avhrr/images - AVHRR images
ames.arc.nasa.gov [128.102.18.3]: pub/SPACE/CDROM  - images from
Magellan and Viking missions etc.
pub/SPACE/Index contains a listing of files available in the whole
archive (the index is about 200K by itself). There's also an
e-mail server for the people without Internet access: send a letter
to archive-server@ames.arc.nasa.gov (or ames!archive-server). In the
subject of your letter (or in the body), use commands like:
send SPACE Index
send SPACE SHUTTLE/ss01.23.91
(Capitalization is important! Only text files are handled by the
email server at present)
vab02.larc.nasa.gov [128.155.23.47]: pub/gifs/misc/landsat -
Landsat photos in GIF and JPEG format
[ It was shut down - nfotis; anyone has a copy of this archive?? ]
Others
------
Daily values of river discharge, streamflow, and daily weather data is
available from EarthInfo, 5541 Central Ave., Boulder CO  80301.  These
disks are expensive, around $500, but there are quantity discounts.
(303) 938-1788.
Check vmd.cso.uiuc.edu [128.174.5.98], the wx directory carries
data regarding surface analysis, weather radar, and sat view pics in
GIF format (updated hourly)
pioneer.unm.edu [129.24.9.217] is the Space and Planetary Image Facility
(located on the University of New Mexico campus) FTP server. It provides
Anonymous FTP access to >150 CD-ROMS  with data/images.
A disk with earthquake data, topography, gravity, geopolitical info
is available from NGDC (National Geophysical Data Center), 325 Broadway,
Boulder, CO  80303.  (303) 497-6958.
EOSAT (at least in the US) now sells Landsat MSS data older than two years
old for $200 per scene, and they have been talking about a similar deal
for Landsat TM data. The MSS data are 4 bands, 80 meter resolution.
Check out anonymous FTP to ftp.ncsa.uiuc.edu in
UNIX/PolyView/alpha-shape for a tool that creates convex hulls
alpha-shapes (a generalization of the convex hull) from 3D point sets.
The GRIPS II (Gov. Raster Image Processing Software) CD-ROM
is available from CD-ROM Inc. at 1-800-821-5245 for $49.
Code for viewing ADRG (Arc Digitised Raster Graphics) files is
available on the GRIPS II CD-ROM. The U.S. Army Engineer
Topographic Labs (Juan Perez) code is also available via FTP
( adrg.zip archive in  spectrum.xerox.com )
NRCC range data
---------------
Rioux M., Cournoyer L. "The NRCC Three-Dimensional Image Data Files",
Tech. Report, CNRC 29077, National Research Council Canada,
Ottawa, Canada, 1988
[ From what I understand, these data are from a laser range finder,
and you can a copy for research purposes ]
==========================================================================
12. 3D scanners - Digitized 3D Data
===================================
a. Cyberware Labs, Monterey, CA, manufactures a 3D color laser digitizer
which can be used to model parts of, or a complete, human body.
They run a service bureau also, so they can digitize models for you.
Address:
Cyberware Labs, Inc
8 Harris Ct, Suite 3D
Monterey, CA 93940
Phone: (408)373-1441, Fax: (408)373-3582
b. Polhemus makes a 6D input device (actually a couple of models)
that senses position (3D) and *orientation* (+3D) based on electromagnetic
field interference.  This equipment is also incorporated in the
VPL Dataglove.
This hardware is also called ISOTRACK, from Keiser Aerospace.
Ascension Technology makes a similar 3D input device.
There is a company, Applied Sciences(?), that makes a 3D input
device (position only) based on speed of sound triangulation.
c. A company that specializes in digitizing is Viewpoint. You can ask
for Viewpoint's _free_ 100 page catalog full of ready to
ship datasets from categories such as cars, anatomy, aircraft,sports,
boats, trains, animals and others. Though these objects are
quite expensive, the cataloge is nevertheless of interest for it
has pictures of all the available objects in wireframe , polygon mesh.
Contact:
Viewpoint,
870 West Center,
Orem, Utah 84057
ph# 801-224-2222
fax# 801-224-2272
1-800-DATASET
------
Some addresses for companies that make digitizers:
Ascension Technology
Bird, Flock of Birds, Big Bird: 6d trackers
P.O. Box 527,
Burlington, VT 05402
Phone: (802) 655-7879, Fax: (802) 655-5904
Polhemus Incorporated
Digitizer: 6d trackers
P.O. Box 560, Hercules Dr.
Colchester, Vt. 05446
Tel: (802) 655-3159
Logitech Inc.
Red Baron, ultrasonic 6D mouse
6506 Kaiser Dr.
Freemont, CA 94555
Tel: (415) 795-8500w
Shooting Star Technology
Mechanical Headtracker
1921 Holdom Ave.
Burnaby, B.C. Canada V5B 3W4
Tel: (604) 298-8574
Fax: (604) 298-8580
Spaceball Technologies, Inc.
Spaceball: 6d stationary input device
600 Suffolk Street
Lowell, MA, 01854
Tel: (508) 970-0330
Fax: (508) 970-0199
Tel in Mountain View: (415) 966-8123
Transfinite Systems
Gold Brick: PowerGlove for Macintosh
P.O. Box N
MIT Branch Post Office
Cambridge, MA 02139-0903
Tel: (617) 969-9570
email: D2002@AppleLink.Apple.com
VPL Research, Inc.
EyePhone: head-mounted display
DataGlove: glove/hand input device
VPL Research Inc.
950 Tower Lane
14th Floor
Foster City, CA 94404
Tel: (415) 312-0200
Fax: (415) 312-9356
SimGraphics Engineering
Flying Mouse: 6d input device
1137 Huntington Rd. Suite A-1
South Pasadena, CA 91030-4563
(213) 255-0900
========================================================================
13. Background imagery/textures/datafiles
=========================================
First, check in the FTP places that are mentioned in the FAQ or in the FTP
list above.
24-bit scanning:
----------------
Get a good 24-bit scanner, like Epson's. Suggested is an SCSI port for
speed. Eric Haines had a suggestion in RT News, Volume 4, #3 :
scan textures for wallpapers and floor coverings, etc. from doll
house supplies.
So you have a rather cheap way to scan patterns that don't have
scaling troubles associated with real materials and scanning area.
Books with textures:
--------------------
Find some houses/books/magazines that carry photographic material.
Educorp, 1-619-536-9999, sells CD-ROMS with various imagery - also
a wide variety of stock art is available.
Stock art from big-name stock art houses, such as Comstock,
UNIPHOTO, and Metro Image Base, is available.
In Italy, there's a company called Belvedere that makes such books
for the purpose of clipping their pages for inclusion in your
graphics work. Their address is:
Edition Belvedere Co. Ltd.,
00196 Rome Italy,
Piazzale Flaminio, 19
Tel. (06) 360-44-88, Fax (06)  360-29-60
Texture Libraries:
------------------
a. Mannikin Sceptre Graphics announced TexTiles, a set of 256x256 24-bit
textures. Initial shipments in 24-bit IFF (for Amigas), soon in 24-bit
TIFF format. Algorithmically built for tiled surfaces. SRP is $40 / volume
(each volume = 40 images @ 10 disks). Demo disks for $5 are available.
Contact:
Mannikin Sceptre Graphics
1600 Indiana Ave.
Winter Park, FL 32789
Phone: (407) 384-9484
FAX: (407) 647-7242
b. ESSENCE is a library of 65 (sixty-five) new algoritmic textures for Imagine
by Impulse, Inc. These textures are FULLY compatible with the floating point
versions of Imagine 2.0, Imagine 1.1, and even Turbo Silver.
Written by Steve Worley.
For more info contact:
Essence Info
Apex Software Publishing
405 El Camino Real Suite 121
Menlo Park CA 94025 USA
[ What about Texture City ?? ]
==========================================================================
14. Introduction to rendering algorithms
========================================
a. Ray-Tracing:
---------------
I assume you have a general understanding of Computer Graphics. No? Then read
some of the books that the FAQ contains. For Ray-Tracing, I would
suggest:
An Introduction to Ray Tracing, Andrew Glassner (ed.), Academic Press
1989, ISBN 0-12-286160-4
Note that I have not read the book, but I feel that you can't be wrong
using his book. An errata list was posted in comp.graphics by Eric Haines
(erich@eye.com)
There's a more concise reference also:
Roman Kuchkuda , UNC @ Chapel Hill: "An Introduction to Ray Tracing", in
"Theoretical Foundations for Computer Graphics and CAD", ed. R.A.E.Earnshaw,
NATO AS, Vol. F-40., pp. 1039-1060. Printed by Springer-Verlag, 1988.
It contains code for a small, but fundamentally complete ray-tracer.
b. Z-buffer (depth-buffer)
--------------------------
A good reference is:
_Procedural Elements for Computer Graphics_, David F. Rogers,
McGraw-Hill, New York, 1985, pages 265-272 and 280-284.
c. Others:
----------
???
[ More info is needed -- nfotis ]
========================================================================
15. Where can I find the geometric data for the:
================================================
a. Teapot ?
-----------
"Displays on Display" column of IEEE CG&A Jan '87 has the whole
story about origin of the Martin Newell's teapot. The article also has
the bezier patch model and a Pascal program to display the wireframe
model of the teapot.
IEEE CG&A Sep '87 in Jim Blinn's column "Jim Blinn's Corner" describes
an another way to model the teapot; Bezier curves with rotations for
example are used.
The OFF and SPD packages have these objects, so you're advised to get
them to avoid typing the data yourself.  The OFF data is triangles at
a specific resolution (around 8x8[x4 triangles] meshing per patch).
The SPD package provides the spline patch descriptions and performs a
tessellation at any specified resolution.
b. Space Shuttle ?
------------------
Tolis Lerios <tolis@nova.stanford.edu> has built a list of Space Shuttle
datafiles. Here's a summary (From his sci.space list):
model1:
A modified version of the newsgroup model (model2)
406 vertices (296 useful, i.e. referred to in the polygon descriptions.)
389 polygons (233 3-vertex, 146 4-vertex, 7 5-vertex, 3 6-vertex).
Payload doors non-existent.
Units: unknown.
Simon Marshall (S.Marshall@sequent.cc.hull.ac.uk) has a copy. He
said there is no proprietary information associated with it.
model2:
The newsgroup model, in OFF format. You can find it in
gondwana.ecr.mu.oz.au , file pub/off/objects/shuttle.geo
hanauma.stanford.edu ,  /pub/graphics/Comp.graphics/objects/shuttle.data
model3:
The triangles' model.
This model is stored in several files, each defining portions of the model.
Greg Henderson (henders@infonode.ingr.com) has a copy.  He did
not mention any restriction on the model's distribution.
model4:
The NASA model.
The file starts off with a header line containing three real numbers,
defining the offsets used by Lockheed in their simulations:
<x offset> <y offset> <z offset>
From then on, the file consists of a sequence of polygon descriptions
3473 vertices.
2748 polygons (407 3-vertex, 2268 4-vertex, 33 5-vertex, 14 6-vertex,
10 7-vertex, 8 8-vertex, 8 12-vertex, 2 13-vertex, 2 15-vertex,
17 16-vertex, 2 17-vertex, 2 18-vertex, 3 19-vertex, 8 24-vertex).
Payload doors closed.
Units: inches.
Jon Berndt (jon@l14h11.jsc.nasa.gov) seems to be responsible for the model
Proprietary info: unknown
model5:
The old shuttle model.
The file consists of a sequence of polygon descriptions.
104 vertices.
452 polygons (11 3-vertex, 41 4-vertex).
Payload doors open.
Units: meters.
We have been using this model at STAR Labs, Stanford University, for
some years now. Contact me (tolis@nova.stanford.edu) or my supervisor
Scott Williams (scott@star5.stanford.edu) if you want a copy.
========================================================================
16. Image annotation software
=============================
a. Touchup runs in Sunview and is pretty good.  It reads in
rasterfiles, but even if your image isn't normally stored
in rasterfile format you could use screendump to make it a
rasterfile.
b. Idraw (part of Stanford's InterViews distribution) can handle some
image formats in addition to being a MacDraw like tool.  I'm not
sure exactly what they are.
You can ftp the idraw's binary from interviews.stanford.edu.
c. Tgif is another MacDraw like tool that can handle X11 bitmap (xbm)
and X11 pixmap (xpm) formats.  If the image you have is in formats
other than xbm or xpm, you can get the pbmplus toolkit to convert
things like gif or even some Macintosh formats to xpm.
Tgif's sources are available in the pub directory on cs.ucla.edu
(Version 2.12 of tgif at patchlevel 7 plus patch8 and patch9)
d. Use the editimage facility of KHOROS (see below).
This is just one utility in the overall system- you can essentially do all
your image processing and macdraw-type graphics using this package.
e. You might be able to get by with PBMPlus.  pbmtext gives you text output
bitmaps which can be overlaid on top of your image.
f. 'ice' requires Sun hardware running OpenWindows 3.It's a PostScript-based
graphical editor,and it's available for anonymous ftp from Internet host
eo.soest.hawaii.edu (128.171.151.12). Requires Sun C++ 2.0 and
two other locally developed packages, the LXT library (an Xlib-based
toolkit) and a small C++ class library. All files (pub/ice.tar.Z,
pub/lxt.tar.Z and pub/ldgoc++.tar.Z) are available in compressed
tar format. pub/ice.tar.Z contains a README that gives installation
instructions, as well as an extensive man page (ice.1).
A statically-linked compressed executable pub/ice-sun4.Z for
SPARC systems is also available for ftp.
All software is the property of Columbia University and may not
be redistributed without permission.
ice means Image Composition Environment and it's an imaging tool that
allows raster images to be combined with a wide variety of
PostScript annotations in WYSIWYG fashion via X11 imaging
routines and NeWS PostScript rasterizing.
g. Use ImageMagick to annotate an image from your X server.  Pick the
position of your text with the cursor and choose your font and pen
color from a pull-down menu.  ImageMagick can read and write many
of the more popular image formats.  ImageMagick is available as
export.lcs.mit.edu: contrib/ImageMagick.tar.Z or at your nearest
X11 archive.
========================================================================
17. Scientific visualization stuff
==================================
X Data Slice (xds)
-------------------
Bundled with the X11 distribution from MIT,
in the contrib directory. Available at ftp.ncsa.uiuc.edu [141.142.20.50]
(either as a source or binaries for various platforms).
National Center for Supercomputing Applications (NCSA) Tool Suite
-----------------------------------------------------------------
Platforms: Unix Workstations (DEC, IBM, SGI, Sun)
Apple MacIntosh
Cray supercomputers
Availability: Now available.  Source code in the public domain.
FTP from ftp.ncsa.uiuc.edu.
Contact: National Center for Supercomputing Applications
Computing Applications Building
605 E. Springfield Ave.
Champaign, IL 61820
Cost: Free (zero dollars).
The suite includes tools for 2D image and 3D scene analysis and visualization.
The code is actively maintained and updated.
Spyglass
--------
They sell commercial versions of the NCSA tools. Examples are:
Spyglass Dicer (3D volumetric data analysis package)
Platform: Mac
Spyglass Transform (2D data analysis package)
Platforms: Mac, SGI, Sun, DEC, HP, IBM
Contact:
Spyglass, Inc.
P.O. Box 6388
Champaign, IL  61826
(217) 355-6000
KHOROS 1.0 Patch 5
------------------
Available via anonymous ftp at pprg.eece.unm.edu (129.24.24.10).
cd to /pub/khoros to see what is available. It is HUGE (> 100 MB), but good.
Needs Unix and X11R4. Freely copied (NOT PD), complete with sources
and docs. Very extensive and at its heart is visual programming.
Khoros components include a visual programming language, code
generators for extending the visual language and adding new application
packages to the system, an interactive user interface editor, an
interactive image display package, an extensive library of image and
signal processing routines, and 2D/3D plotting packages.
See comp.soft-sys.khoros on Usenet and the relative FAQ for more info....
Contact:
The Khoros Group
Room 110 EECE Dept.
University of New Mexico
Albuquerque, NM 87131
Email: khoros-request@chama.eece.unm.edu
MacPhase
--------
Analysis & Visualization Application for the Macintosh.
Operates on 1D and 2D data arrays. Import/Export several different file
formats.  Several different plotting options such as gray scale,
color raster, 3D Wire frame, 3D surface, contour, vector, line, and
combinations.  FFTs, filtering, and other math functions, color look up
editor, array calculator, etc. Shareware, available via anonymous ftp from
sumex-aim.stanford.edu in the info-mac/app directory.
For other information contact Doug Norton (e-mail: 74017.461@@compuserve.com)
IRIS Explorer
-------------
It's an application creation system developed by Silicon
Graphics that provides visualisation and analysis functionality for
computational scientists, engineers and other scientists. The Explorer
GUI allows users to build custom applications without having to write
any, or a minimal amount of, traditonal code. Also, existing code can
be easily integrated into the Explorer environment. Explorer currently
is available now on SGI and Cray machines, but will become available on
other platforms in time. [ Bundled with every new SGI machine, as far as
I know]
See comp.graphics.explorer or comp.sys.sgi for discussion of the package.
There are also two FTP servers for related stuff, modules etc.:
ftp.epcc.ed.ac.uk [129.215.56.29]
swedishchef.lerc.nasa.gov [139.88.54.33] - mirror of the UK site
apE
---
Back in the 'old good days', you could get apE for nearly free.
Now has gone commercial and the following vendor supplies it:
TaraVisual Corporation
929 Harrison Avenue
Columbus, Ohio 43215
Tel: 1-800-458-8731 and (614) 291-2912
Fax: (614) 291-2867
Cost:
$895 (plus tax); runtime version with a site-license for a single user
(at a time), no limit on the number of machines in a cluster.
$895 includes support/maintenance and upgrades.
Source code more.  Additional user licenses $360.
The name of the package has become apE III (TM).
Khoros is very similar to apE on philosophy, as are AVS and Explorer.
AVS
---
See also:
comp.graphics.avs
Platforms: CONVEX, CRAY, DEC, Evans & Sutherland, HP, IBM, Kubota,
Set Technologies, SGI, Stardent, SUN, Wavetracer
Availability: AVS4 available on all the above:
For all UNIX workstations.
Contact:
Advanced Visual Systems Inc.
300 Fifth Ave.
Waltham, MA    02154
(617)-890-4300   Telephone
(617)-890-8287   Fax
avs@avs.com      Email
Advanced Visual Systems Inc. for: CRAY, HP, IBM, SGI, Stardent, SUN
CONVEX for CONVEX
Advanced Visual Systems Inc. or CRAY for CRAY
DEC for DEC
Evans & Sutherland for Evans & Sutherland
Advanced Visual Systems Inc. or IBM for IBM
Kubota Pacific Inc. for Kubota
Set Technologies for Set Technologies
Wavetracer for Wavetracer
FTP Site: for modules, data sets, other info:
avs.ncsc.org (128.109.178.23)
WIT
---
In a nutshell it's a package of the same genre as AVS,Explorer,etc.
It seems more a image processing system than a generic SciVi system (IMHO)
Major elements are:
- a visual programming language, which automatically exploits the inherent
parallelism
- a code generator which converts the graph to a standalone program
Iconified libraries present a rich set of point, filter, io, transform,
morphological, segmentation, and measurement operations.
A flow library allows graphs to employ broadcast, merge,
synchronization, conditional, and sequencing control strategies.
WIT delivers an object-oriented, distributed, visual programming
environment which allows users to rapidly design solutions to their
imaging problems. Users can consolidate both software and hardware
developments within a complete CAD-like workspace by adding their
own operators (C functions), objects (data structures), and servers
(specialized hardware). WIT runs on Sun, HP9000/7xx, SGI and supports
Datacube MV-20/200 hardware allowing you to run your graphs in real-time.
For a free WIT demo disk, call, FAX, or e-mail (poon@ee.ubc.ca)
us stating your complete name, address, voice, FAX, e-mail info.
and desired platform.
Pricing: WIT for Sparc, one yr. free upgrades, 30 days
technical support....................$5000 US
Academic institutions: discounts available
Contact:
Logical Vision Ltd.
Suite 108-3700 Gilmore Way
Burnaby, B.C., CANADA
V5G 4M1
Tel: 604-435-2587
Fax: 604-435-8840
Terry Arden <poon@ee.ubc.ca>
VIS-5D
------
A system for visually exploring the output of 5-D gridded data sets
such as those made by weather models. Platforms:
SGI IRIS with VGX, GTX, TG, or G graphics,
SGI Crimson or Indigo (R4000, Elan graphics suggested), IRIX 4.0.x
IBM RS/6000 with GL graphics, AIX version 3 or later;
Stardent GS-1000 and GS-2000 (with TrueColor display)
In any case, 32 (or more) MB of RAM are suggested.
You can get it freely (thanks to NASA support) via anonymous ftp:
ftp iris.ssec.wisc.edu  (or ftp 144.92.108.63), then
ftp> cd pub/vis5d
ftp> ascii
ftp> get README
ftp> bye
NOTE: You can find the package also on wuarchive.wustl.edu in the
graphics/graphics/packages directory.
Read section 2 of the README file for full instructions
on how to get and install VIS-5D.
Contact:
Bill Hibbard (whibbard@vms.macc.wisc.edu)
Brian Paul (bpaul@vms.macc.wisc.edu)
DATAexplorer (IBM)
------------------
Platforms : IBM Risc System 6000, IBM POWER Visualization Server
(SIMD mesh 32 i860s, 40 MHz)
Working on (announced) : SGI, HP, Sun
Contact:
Your local IBM Rep.  For a trial package ask your rep to contact :
David Kilgore
Data Explorer Product Marketing
YKTVMH(KILCORE), (708) 981-4510
Wavefront
---------
Data Visualizer, Personal Visualizer, Advanced Visualizer.
Platforms: SGI, SUN, IBM RS6000, HP, DEC
Availability:
Available on all the above platforms from Wavefront
Technologies.  Educational programs and site licenses are
available.
Contacts:
Mike Wilson (mike@wti.com)
Wavefront Technologies, Inc.
530 East Montecito Street
Santa Barbara, CA 93103
805-962-8117
FAX: 805-963-0410
Wavefront Europe
Guldenspoorstraat 21-23
B-9000 Gent, Belgium
32-91-25-45-55
FAX: 32-91-23-44-56
Wavefront Technologies Japan
17F Shinjuku-sumitomo Bldg
2-6-1  Nishi-shinjuku, Shunjuku-Ku
Tokyo 168 Japan
81-3-3342-7330
FAX 81-3-3342-7353
PLOT3D and FAST from NASA Ames
------------------------------
These packages are distributed from COSMIC at least
(for FAST ask Pat Elson <pelson@nas.nasa.gov> for
distribution information). In general, these codes are for US
citizens only :-(
XGRAPH
------
On the contrib tape of X11R5. Its specialty is display of up
to 64 data sets (2D).
NCAR
----
National Center for Atmospheric Research. One of the original graphics
packages. Runs on Sun, RS6000, SGI, VAX, Cray Y-MP, DecStations, and more.
Contact:
Graphics Information
NCAR Scientific Computing Division
P.O. Box 3000
Boulder, CO   80307-3000
(303)-497-1201
scdinfo@ncar.ucar.edu
Cost:
.edu
$750 Unlimited users
.gov
$750 1 user
$1500 5 users
$3000 25 users
.com users multiply .gov * 2.0
IDL
---
An environment for scientific computing and visualization.
Based on an array oriented language, IDL includes 2D and 3D
graphics, matrix manupulation, signal and image processing,
basic statistics, gridding, mapping, and a widget based system
for building GUI for IDL applications (Open Look, Motif, or
MS-Windows).
Environments:  DEC (VMS and Ultrix), HP, IBM RS6000, SGI, Sun,
Microsoft Windows.  (Mac version in progress)
Cost:  $1500 to $3750, Educational and quantity discounts
available.
See also:   comp.lang.idl-pvwave (the IDL-PVWAVE bundle)
Contact:    Research Systems Inc.
777 29th Street, Suite 302
Boulder, CO  80303
Phone:  303-786-9900
FAX:    303-786-9909
E-mail: info@rsinc.com
Demo available via FTP.  Call or E-mail for details.
IDL/SIPS
--------
"A lot of people are using IDL with a package called SIPS. This was
developed at the University of Colorado (Boulder) by some people working
for Alex Goetz.  You might try contacting them if you already have IDL
or would be willing to buy it.  It's a few thousand dollars (American) I
expect for IDL and the other should be free.  Those are the general
purpose packages I've heard of, besides what TerraMar has.
SIPS _was_ written for AVIRIS imagery.  I'm not sure how general purpose
it is.  You would have to contact Goetz or one of his people and ask.  I
have another piece of software (PCW) that does PC and Walsh
transformations with pseudocoloring and clustering and limited image
modification (you can compute an image using selected components).  I've
used it on 70 megabyte AVIRIS images without problems, but for the best
speed you need an external DSP card.  It will work without it, but large
images take quite a while (50-70 times as long) to process.  That's a
freebie if you want it"
"My  favorite is IDL (Interactive Data Language) from Research Systems,
Inc.  IDL is in my opinion, much better and infinitely easier. Its
programming language is very strong and easy -- very Pascal-like. It
handles the number-crunching very well, also. Personally, I like doing
the number-crunching with IDL on the VAX (or Mathematica, Igor, or even
Excel on the Mac if it's not too hairy), then bringing it over to NIH
Image for the imaging part. I have yet to encounter any situation which
that combination couldn't handle, and the speed and ease of use
(compared to IRAF) was incredible. By the way, it's mostly astronomical
image processing which I've been doing. This means image enhancement,
cleaning up bad lines/pixels, and some other traditional image
processing routines. Then, for example, taking a graph of intensity
versus position along a line I choose with the mouse, then doing a curve
fit to that line (which I might do like in KaleidaGraph.) "
[ For IDL call Research Systems , for PV-WAVE call Precision Visuals and
for SIPS call University of Colorado @ Boulder . From what I can
understand, you can get packaged programs from Research Systems, though
-- nfotis ]
Visual3
-------
contact Robert Haimes, MIT
FieldView
---------
An interactive program designed to assist an engineer in
investigating fluid dynamics data sets.
Platforms:  SGI, IBM, HP, SUN, X-terminals
Availability:  Currently available on all of the above
platforms.  Educational programs and volume
discounts are available.
Contact:
Intelligent Light
P.O. Box 65
Fair Lawn, NJ 07410
(201)794-7550
Steve Kramer (kramer@ilight.com)
SciAn
------
SciAn is primarily intended to do 3-D visualizations of data in an
interactive environment with the ability to generate animations using
frame-accurate video recording devices.  A user manual, on-line help, and
technical notes will help you use the program.
Cost : 0 (Free), source code provided via ftp.
Platforms : SGI 4D machines and IBM RS/6000 with the GL card + Z-buffer
Where to find it:
ftp.scri.fsu.edu [144.174.128.34] : /pub/SciAn
A mirror is monu1.cc.monash.edu.au [130.194.1.101] : /pub/SciAn
SCRY
----
[ From the README : ]
Scry is a distributed image handling system  that  pro-
vides image transport and compression on local and wide area
networks, image viewing on workstations, recording on  video
equipment,  and  storage on disk.  The system can be distri-
buted among workstations, between supercomputers and  works-
tations,  and between supercomputers, workstations and video
animation controllers.  The system is most commonly used  to
produce  video based movie displays of images resulting from
visualization of time dependent data, complex 3D data  sets,
and  image  processing  operations.   Both  the  clients and
servers run on a variety of systems that provide UNIX-like C
run-time environments, and 4BSD sockets.
The source is available for anonymous ftp:
csam.lbl.gov [128.3.254.6] : pub/scry.tar.Z
Contact:
Bill Johnston, (wejohnston@lbl.gov, ...ucbvax!csam.lbl.gov!johnston)
or
David Robertson (dwrobertson@lbl.gov, ...ucbvax!csam.lbl.gov!davidr)
Imaging Technologies Group
MS 50B/2239
Lawrence Berkeley Laboratory
1 Cyclotron Road
Berkeley, CA  94720
SVLIB / FVS
-----------
SVLIB is an X-Windows widget set based on the OSF (Open Software
Foundation) Motif widget set. SVLIB widgets are macro-widgets
comprising lower level Motif widgets such as buttons, scrollbars,
menus, and drawing areas. It is designed to address the reusability
of 2D visualization routines and each widget in the library is an
encapsulation of a specific visualization technique such as colormap
manipulation, image display, and contour plotting. It is targetted
to run on UNIX workstations supporting OSF/Motif. Currently, only
color monitors are supported. Since SVLIB is a collection of widgets
developed in the same spirit as the OSF/Motif user interface widget
set, it integrates seamlessly with the Motif widgets. Programmers
using SVLIB widgets see the same interface and design as other
Motif widgets.
FVS is a visualization software for Computational Fluid Dynamics (CFD)
simulations.  FVS is designed to accept data generated from these
simulations and apply various visualization techniques to present these
data graphically.
FVS accepts three-dimensional multi-block data recorded in NCSA HDF format.
iti.gov.sg [192.122.132.130] : /pub/svlib (Scientific Visualization)
/pu/fvs; These directories contain demo binaries for Sun4/SGI
Cost : US$200 for academic and US$300 for non-academic institutions.
(For each of the above items). You're getting the source for the licence.
Contact
-------
Miss Quek Lee Hian
Member of Technical Staff
Information Technology Institute
National Computer Board
NCB Building
71, Sicence Park Drive
Singapore 0511
Republic of Singapore
Tel : (65)7720435
Fax : (65)7795966
Email : leehian@iti.gov.sg
---------------------------------------------------------
GVLware Distribution:
Bob  - An interactive volume renderer for the SGI
Raz  - A disk based movie player for the SGI
Icol - Motif color editor
---------------------------------------------------------
The Army High Performance Computing Research Center (AHPCRC) has been
developing a set of tools to work with large time dependent 2D and 3D
data sets.  In the Graphics and Visualization Lab (GVL) we are using
these tools along side standard packages, such as SGI Explorer and the
Utah Raster Toolkit, to render 3D volumes and create digital movies.
A couple of the more general purpose programs have been bundled into a
package called "GVLware".
GVLware, currently consisting of Bob, Raz and Icol, is now available
via ftp.  The most interesting program is probably Bob, an interactive
volume renderer for the SGI.  Raz streams raster images from disk to
an SGI screen, enabling movies larger than memory to be played.  Icol
is a color map editor that works with Bob and Raz.  Source and
pre-built binaries for IRIX 4.0.5 are included.
To acquire GVLware, anonymous ftp to:
machine - ftp.arc.umn.edu
file    - /pub/gvl.tar.Z
To use GVLware:
mkdir gvl ; cd gvl
zcat gvl.tar.Z | tar xvf -
more README
Some Bob features:
Motif interface, SGI GL rendering
Renders 64 cubed data set in 0.1 to 1.0 seconds on a VGX
Alpha Compositing and Maximum Value rendering, in perspective
(only Maximum Value rendering on Personal Iris)
Data must be a "Brick of Bytes", on a regularly spaced grid
Animation, subvolumes, subsampling, stereo
Some Raz features:
Motif interface, SGI GL rendering
Loads files to a raw disk partition, then streams to screen
(requires an empty disk partition to be set aside)
Script interface available for movie sequences
Can stream from memory, like NCSA XImage
Some Icol features:
Motif interface
Easy to create interpolated color maps between key points
RGB, HSV and YUV color spaces, multiple file formats
Communicates changes automatically to Bob and Raz
Has been tested on SGI, Sun, DEC and Cray systems
BTW:    Bob  == Brick of Bytes
Icol == Interpolated Color
Raz  == ? (just a name)
Please send any comments to
gvlware@ahpcrc.umn.edu
This software collection is supported by the Army Research Office
contract number DAALO3-89-C-0038 with the University of Minnesota Army
High Performance Computing Research Center.
IAP
---
Imaging Applications Platform is a commercial package for medical and
scientific visualization. It does volume rendering, binary surface
rendering, multiplanar reformating, image manipulation, cine sequencing,
intermixes geometry and text with images and provides measurement and
coordinate transform abilities.
It can provide hardcopy on most medical film printers, image database
functionality and interconnection to most medical (CT/MRI/etc) scanners.
It is client/server based and provides an object oriented interface. It
runs on most high performance workstations and takes full advantage of
parallelism where it is available. It is robust, efficient and
will be submitted for FDA approval for use in medical applications.
Cost: $20K for OEM developer, $10K for educational developer
and run times starting at $8900 and going down based on quantity.
The developer packages include two days training for two people in Toronto.
Available from:
ISG Technologies
6509 Airport Road
Mississauga, Ontario,
Canada, L4V-1S7
(416) 672-2100
e-mail: Rod Gilchrist <rod@isgtec.com>
========================================================================
18. Molecular visualization stuff
=================================
[ Based on a list from cristy@dupont.com < Cristy > , which asked for
systems for displaying Molecular Dynamics, MD for short ]
Flex
----
It is a public domain package written by Michael Pique, at The Scripps
Research Institute, La Jolla, CA. Flex is stored as a compressed,
tar'ed archive (about 3.4MB) at perutz.scripps.edu [137.131.152.27], in
pub/flex. It displays molecular models and MD trajectories.
MacMolecule
-----------
(for Macintosh). I searched with Archie, and the most
promising place is sumex-aim.stanford.edu (info-mac/app, and
info-mac/art/qt for a demo)
MD-DISPLAY
----------
Runs on SGI machines. Call Terry Lybrand (lybrand@milton.u.washington.edu).
XtalView
--------
It is a crystallography package that does visualize molecules and much more.
It uses the XView toolkit.
Call Duncan McRee <dem@scripps.edu>
landman@hal.physics.wayne.edu:
-----------------------------
I am writing my own visualization code right now.  I look at MD output
(a specific format, easy to alter for the subroutine) on PC's.  My
program has hooks into GKS.  If your friend has access to Phigs for X
(PEX) and fortran bindings, I would be happy to share my evolving code
(free of charge).  Right now it can display supercells of up to 65
atoms (easy to change), and up to 100 time steps, drawing nearest
neighbor bonds between 2 defining nn radii.  It works acceptably fast
on a 10Mhz 286.
icsg0001@caesar.cs.montana.edu:
------------------------------
I did a project on Molecular Visualization for my Master's Thesis, using
UNIX/X11/Motif which generates a simple point and space-filling model.
KGNGRAF
-------
KGNGRAF is part of MOTECC-91. Look on malena.crs4.it (156.148.7.12),
in pub/motecc.
motecc.info.txt          Information about MOTECC-91 in plain ascii format.
----------------------------------------------------------------------------
motecc.info.troff        Information about MOTECC-91 in troff format.
motecc.form.troff        MOTECC-91 order form in troff format.
motecc.license.troff     MOTECC-91 license agreement in troff format.
----------------------------------------------------------------------------
motecc.info.ps           Information about MOTECC-91 in PostScript format.
motecc.form.ps           MOTECC-91 order form in PostScript format.
motecc.license.ps        MOTECC-91 license agreement in PostScript format.
ditolla@itnsg1.cineca.it:
------------------------
I'm working on molecular dynamic too.  A friend of mine and I have
developed a program to display an MD run dynamically on Silicon
Graphics.  We are working to improve it, but it doesn't work under X,
we are using the graphi. lib. of the Silicon Gr. because they are much
faster then X.  When we'll end it we'll post on the news info about
where to get it with ftp. (Will be free software).
XBall V2.0
----------
Written by David Nedde. Call daven@maxine.wpi.edu.
XMol
----
An X Window System program that uses OSF/Motif  for  the
display and  analysis  of  molecular  model data.  Data from several
common file formats can be read and written; current formats include:
Alchemy, CHEMLAB-II, Gaussian, MOLSIM, MOPAC, PDB, and MSCI's XYZ
format (which has been designed  for  simplicity  in  translating to
and from other formats). XMol also allows for conversion between
several of these formats.
Xmol is available at ftp.msc.edu. Read pub/xmol/README for
further details.
INSIGHT II
----------
from BIOSYM Technologies Inc.
SCARECROW
---------
The program has been published in J. Molecular Graphics 10
(1992) 33. The program can analyze and display CHARMM, DISCOVER, YASP
and MUMOD trajectories. The program package contains also software for
the generation of probe surfaces, proton affinity
surfaces and molecular orbitals from an extended Huckel program.
It works on Silicon Graphics machines.
Contact Leif Laaksonen <Leif.Laaksonen@csc.fi or laaksone@csc.fi>
MULTI
-----
ns.niehs.nih.gov [157.98.8.8] : /pub - MULTI 3.0 (Multi-Process
Molecular Modeling Suite)
+MindTool
+--------
+  It runs under SunView, and requires a fortran compiler and Sun's CGI
+  libraries. MindTool is a tool  provided  for  the  interactive  graphic
+  manipulation  of  molecules  and  atoms. Currently, up to 10,000
+  atoms may be input.
+  Available via anonymous FTP, at rani.chem.yale.edu, directory
+  /pub/MindTool ( Check with Archie for other  sites if that's too far )
[ I would also suggest looking at least in SGI's Applications Directory.
It contains many more packages - nfotis ]
===========================================================================
19. GIS (Geographical Information Systems software)
===================================================
GRASS
-----
(Geographic Resource Analysis Support System) of the US Army
Construction Engineering Research Lab (CERL). It is a popular geographic and
remote sensing image processing package. Many may think of GRASS as a
Geographic Information System rather than an Image Processing package,
although it is reported to have significant image processing
capabilities.
Feature Descriptions
I use GRASS  because it's public domain and can be obtained through the
internet for free.  GRASS runs in Unix and is written in C.  The source
code can be obtained through an anonymous ftp from the Office of Grass
Integration.  You then compile the source code for your machine, using
scripts provided with GRASS.  I would recommend GRASS for someone who
already has a workstation and is on a limited budget. GRASS is not very
user-friendly, compared to Macintosh software." A first review  of
overview documentation indicates that it looks useful and has some pixel
resampling functions not in other packages plus good general purpose
image enhancement routines (fft). Kelly Maurice at Vexcel Corp. in
Boulder, CO is a primary user of GRASS .  This gentleman has used the
GRASS software and developed multi-spectral (238 bands ??) volumetric
rendering, full color, on Suns and Stardents. It was a really effective
interface.  Vexcel Corp. currently has a contract to map part of Venus
and convert the Magellan radar data into contour maps. You can call them
at (303) 444-0094 or email care of greg@vexcel.com 192.92.90.68
Host Configuration Requirements
If you are willing to run A/UX you could install GRASS   on a Macintosh
which has significant image analysis and import capabilities for
satellite data. GRASS  is public-domain, and can run on a high-end PC
under UNIX. It is raster-based, has some image-processing capability,
and can display vector data (but analysis must be done in the raster
environment). I have used GRASS V.3 on a SUN workstation and found it
easy to use. It is best, of course, for data that are well represented
in raster (grid-cell) form.
Availability
CERL's Office of Grass Integration (OGI)  maintains an ftp server:
moon.cecer.army.mil (129.229.20.254).
Mail regarding this site should be addressed to
grass-ftp-admin@moon.cecer.army.mil.
This location will be the new "canonical" source for GRASS software, as
well as bug fixes, contributed sources, documentation, and other files.
This FTP server also supports dynamic compression and uncompression and
"tar" archiving of files.  A feature attraction of the server is John
Parks' GRASS tutorial.  Because the manual is still in beta-test stage,
John requests that people only acquire it if they are willing to review
it and mail him comments/corrections. The OGI is not currently
maintaining this document, so all correspondence about it should be
directed to grassx@tang.uark.edu
Support
Listserv mailing lists:
grassu-list@amber.cecer.army.mil (for GRASS users; application-level
questions, support concerns, miscellaneous questions, etc) Send
subscribe commands to grassu-request@amber.cecer.army.mil.
grassp-list@amber.cecer.army.mil (for GRASS programmers; system-level
questions and tips, tricks, and techniques of design and implementation
of GRASS applications) Send subscribe commands to
grassp-request@amber.cecer.army.mil.
Both lists are maintained by the Office of Grass Integration (subset of
the Army Corps of Engineers Construction Engineering Research Lab in
Champaign, IL). The OGI is providing the lists as a service to the
community; while OGI and CERL employees will participate in the lists,
we can make no claim as to content or veracity of messages that pass
through the list.  If you have questions, problems, or comments, send
E-mail to lists-owner@amber.cecer.army.mil and a human will respond.
Microstation Imager
-------------------
Intergraph (based in Huntsville Alabama) sells a wide range of GIS
software/hardware. Microstation is a base  graphics package that Imager
sits on top of. Imager is basically an  image processing package with a
heavy GIS/remote sensing flavor.
Feature Description
Basic geometry manipulations: flip, mirror, rotate, generalized affine.
Rectification: Affine, 2nd, 3rd, 4th and 5th order models as well as a
projective model (warp an image to a vector map or to another image).
RGB to IHS and IHS to RGB conversion.  Principal component analysis.
Classification: K-means and isodata.  Fourier Xforms: Forward, filtering
and reverse.  Filters: High pass, low pass, edge enhancing, median,
generic.  Complex Histogram/Contrast control.  Layer Controller: manages
up to 64 images at a time -- user can extract single bands from a 3 band
image or create color images by combining various individual bands, etc.
The package is designed for a remote sensing application (it can handle
VERY LARGE images) and there is all kinds of other software available
for GIS applications.
Host Configuration Requirements
It runs on Intergraph Workstations (a Unix machine similar to a Sun)
though there  were rumors (there are always rumors) that the software
would be  ported to PC and possibly a Sun environment.
PCI
---
A company called PCI, Inc., out of Richmond Hill, Ontario, Canada, makes
an array of software utilities for processing, manipulation, and use of
remote sensing data in eight or ten different "industry standard"
formats: LGSOWG, BSQ, LANDSAT, and a couple of others whose titles I
forget.  The software is available in versions for MS-DOS, Unix
workstations (among them HP, Sun, and IBM), and VMS, and quite possibly
other platforms by now.  I use the VMS version.
The "PCI software" consists of several classes/groups/packages of
utilities, grouped by function but all operating on a common "PCI
database" disk file.  The "Tape I/O" package is a set of utility
programs which read from the various remote-sensing industry tape
formats INTO, or write those formats out FROM, the "PCI database" file;
this is the only package I use or know much about.  Other packages can
display data from the PCI database to one or another of several
PCI-supported third-party color displays, output numeric or bitmap
representation of image data to an attached printer, e.g. an Epson-type
dot-matrix graphics printer.  You might be more spe- cifically
interested in the mathematical operations package: histo- gram and
Fourier analysis, equalization, user-specified operations (e.g.
"multiply channel 1 by 3, add channel 2, and store as channel 5"), and
God only knows what all else -- there's a LOT.  I don't have and don't
use these, so can't say much about them; you only buy the packages your
particular application/interest calls for.
Each utility is controlled by from one to eight "parameters," read from
a common "parameter file" which must be (in VMS anyway) in your "default
directory."  Some utilities will share parameters and use the same
parameter for a different purpose, so it can get a bit confusing setting
up a series of operations.  The standard PCI environment contains a
scripting language very similar to IBM-PC BASIC, but which allows you to
automate the process of setting up parameters for a common, complicated,
lengthy or difficult series of utility executions.  (In VMS I can also
invoke utilities independently from a DCL command procedure.)  There's
also an optional programming library which allows you to write compiled
language programs which can interface with (read from/write to) the PCI
data structures (database file, parameter file).
The PCI software is designed specifically for remote-sensing images, but
requires such a level of operator expertise that, once you reach the
level where you can handle r-s images, you can figure out ways to handle
a few other things as well.  For instance, the Tape I/O package offers a
utility for reading headerless multi-band (what Adobe PhotoShop on the
Macintosh calls "raw") data from tape, in a number of different
"interleave" orders. This turns out to be ideal for manipulating the
graphic-arts industry's "CT2T" format, would probably (I haven't tried)
handle Targa, and so on. Above all, however, you HAVE TO KNOW WHAT
YOU'RE DOING or you can screw up to the Nth degree and have to start
over.  It's worth noting that the PCI "database" file is designed to
contain not only "raster" (image) data, but vectors (for overlaying map
information entered via digitizing table), land-use, and all manner of
other information (I observe that a remote-sensing image tape often
contains all manner of information about the spectral bands, latitude,
longitude, time, date, etc. of the original satellite pass; all of this
can go into the PCI "database").
I _believe_ that on workstations the built-in display is used.  On VAX
systems OTHER than workstations PCI supports only a couple of specific
third-party display systems (the name Gould/Deanza seems to come to
mind).  One of MY personal workarounds was a display program which would
display directly from a PCI "database" file to a Peritek VCT-Q (Q-bus
24-bit DirectColor) display subsystem.  PCI software COULD be "overkill"
in your case; it seems designed for the very "high end"
applications/users, i.e. those for whom a Mac/PC largely doesn't suffice
(although as you know the gap is getting smaller all the time).  It's
probably no coincidence that PCI is located in Canada, a country which
does a LOT of its land/resource management via remote sensing; I believe
the Canadian government uses PCI software for some of its work in these
areas.
SPAM (Spectral Analysis Manager)
--------------------------------
Back in 1985 JPL developed something called SPAM (Spectral Analysis
Manager) which got a fair amount of use at the time.  That was designed
for Airborne Imaging Spectrometer imagery (byte data, <= 256 pixels
across by <= 512 lines by <= 256 bands); a modified version has since
been developed for AVIRIS (Airborne VIsual and InfraRed Imaging
Spectrometer) which uses much larger images.
Spam does none of these things (rectification, classification, PC and
IHS transformations, filtering, contrast enhancement, overlays).
Actually, it does limited filtering and contrast enhancement
(stretching).  Spam is aimed at spectral identification and clustering.
The original Spam uses X or SunView to display.  The AVIRIS version may
require VICAR, an executive based on TAE, and may also require a frame
buffer.  I can refer you to people if you're interested.  PCW requires X
for display.
MAP II
------
Among the Mac GIS systems, MAP II is distributed by John Wiley.
CLRview
-------
CLRview is a 3-dimensional visualization program designed to exploit
the real-time capabilities of Silicon Graphics IRIS computers.
This program is designed to provide a core set of tools to aid in the
visualization of information from CAD and GIS sources.  It supports
the integration of many common but disperate data sources such as DXF,
TIN, DEM, Lattices, and Arc/Info Coverages among others.
CLRview can be obtained from explorer.dgp.utoronto.ca (128.100.1.129)
in the directory pub/sgi/clrview.
Contact:
Rodney Hoinkes
Head of Design Applications
Centre for Landscape Research
University of Toronto
Tel:   (416) 978-7197
Email: rodney@dgp.utoronto.ca
==========================================================================
End of Resource Listing
--
Nick (Nikolaos) Fotis         National Technical Univ. of Athens, Greece
HOME: 16 Esperidon St.,       InterNet : nfotis@theseas.ntua.gr
Halandri, GR - 152 32   UUCP:    mcsun!ariadne!theseas!nfotis
Athens, GREECE          FAX: (+30 1) 77 84 578
From: nfotis@ntua.gr (Nick C. Fotis)
Subject: (17 Apr 93) Computer Graphics Resource Listing : WEEKLY [part 1/3]
Lines: 1566
Reply-To: nfotis@theseas.ntua.gr (Nick (Nikolaos) Fotis)
Organization: National Technical Univ. of Athens
Archive-name: graphics/resources-list/part1
Last-modified: 1993/04/17
Computer Graphics Resource Listing : WEEKLY POSTING [ PART 1/3 ]
===================================================
Last Change : 17 April 1993
Many FAQs, including this Listing, are available on the archive site
pit-manager.mit.edu (alias rtfm.mit.edu) [18.172.1.27] in the directory
pub/usenet/news.answers.  The name under which a FAQ is archived appears
in the Archive-name line at the top of the article.
This FAQ is archived as graphics/resources-list/part[1-3]
There's a mail server on that machine. You send a e-mail message to
mail-server@pit-manager.mit.edu  containing the keyword "help" (without
quotes!) in the message body.
You can see in many other places for this Listing. See the item:
0. Places to find the Resource Listing
for more information.
Items Changed:
--------------
RE-ARRANGED the subjects, in order to fir better in the 63K/article limit.
I PLAN ON CHANGING HEADERS SOON, SO BE CAREFUL! ONLY THE "Resource Listing"
keys are sure to remain in the Subject: line!
0. Places to find the Resource Listing
6.  3D graphics editors
a. Public domain, free and shareware systems
9. Plotting packages
18. Molecular visualization stuff
[ I'm thinking of making this post bi-weekly. What do you think??? ]
--------------
Lines which got changed, have the `#' character in front of them.
Added lines are prepended with a `+'
Removed lines are just removed. Use 'diff' to locate these changes.
========================================================================
This text is (C)Copyright 1992, 1993 of Nikolaos C. Fotis. You can copy
freely this file, provided you keep this copyright notice intact.
Compiled by Nikolaos (Nick) C. Fotis, e-mail: nfotis@theseas.ntua.gr
Please contact me for updates,corrections, etc.
Disclaimer: I do not guarantee the accuracy of this document.
Use it at your own risk.
========================================================================
This is mainly a guide for computer graphics software.
I would suggest reading the Comp. Graphics FAQ for image analysis stuff.
It's entitled:
(date) comp.graphics Frequently Asked Questions (FAQ)
John T. Grieggs <grieggs@jpl-devvax.jpl.nasa.gov> is the poster of the
official comp.graphics FAQ
I have included my comments within braces '[' and ']'.
Nikolaos Fotis
========================================================================
Contents of the Resource Listing
================================
PART1:
------
0. Places to find the Resource Listing
1. ARCHIE
2. Notes
3. Computer graphics FTP site list, by Eric Haines
4. Mail servers and graphics-oriented BBSes
5. Ray-tracing/graphics-related mailing lists.
6.  3D graphics editors
a. Public domain, free and shareware systems
b. Commercial systems
7. Scene description languages
8. Solids description formats
PART2:
------
9. Plotting packages
10. Image analysis software - Image processing and display
PART3:
------
11. Scene generators/geographical data/Maps/Data files
12. 3D scanners - Digitized 3D Data.
13. Background imagery/textures/datafiles
14. Introduction to rendering algorithms
a. Ray tracing
b. Z-buffer (depth-buffer)
c. Others
15. Where can I find the geometric data for the:
a. Teapot ?
b. Space Shuttle ?
16. Image annotation software
17. Scientific visualization stuff
18. Molecular visualization stuff
19. GIS (Geographical Information Systems software)
Future additions:
[Please send me updates/info!]
========================================================================
0. Places to find the Resource Listing
======================================
#This file is crossposted to comp.graphics, comp.answers and news.answers,
so if you can't locate it in comp.graphics, you're advised to search in
#comp.answers or news.answers
(The latter groups usually are archived in your site. Contact your sysadmin
for more info).
These 3 articles are posted to comp.graphics 3-4 times a month and are kept in
many places (see below)
--
Many FAQs, including this one, are available on the archive site
pit-manager.mit.edu (alias rtfm.mit.edu) [18.172.1.27] in the directory
pub/usenet/news.answers.  The name under which a FAQ is archived appears
in the Archive-name line at the top of the article.
This FAQ is archived as graphics/resources-list/part[1-3]
There's a mail server on that machine. You send a e-mail message to
mail-server@pit-manager.mit.edu  containing: help in the Subject: field
--
The inria-graphlib mail server mirrors this posting (see under the
Subject 4: Mail servers )
--
The Resource Listing is accesible through WAIS in the machine
enuxva.eas.asu.edu (port 8000) under the name graphics-resources-list.
It's got a digest-type line before every numbered item for purposes of
indexing.
--
Another place that monitors the Listing is the MaasInfo files.
For more info contact Robert E. Maas <rem@btr.com>
--
Yet another place to search for FAQs in general is the SWITCH
(Swiss Academic and Research Network) system in Switzerland:
interactive:
telnet nic.switch.ch [130.59.1.40], login as "info". Move to the
info_service/Usenet/periodic-postings directory. Search in the
00index file by typing "/" and the word to look for.
You may then just read the FAQ in the "faqs" directory, or decide
to fetch it by one of the following methods.
ftp:
login to nic.switch.ch [130.59.1.40] as user anonymous and
enter your internet-style address after being prompted for a
password.
cd info_service/Usenet/periodic-postings
mail:
send e-mail to
RFC-822:
archive-server@nic.switch.ch
X.400:
/S=archive-server/OU=nic/O=switch/PRMD=switch/ADMD=arcom/C=ch/
Enter 'help' in the bodypart to receive instructions. No information
is required in the subject header line.
1. ARCHIE
=========
The Archie is a service system to locate FTP places for
requested files. It's appreciated that you will use Archie
before asking help in the newsgroups.
Archie servers:
archie.au or 139.130.4.6             (Aussie/NZ)
archie.funet.fi or 128.214.6.100  (Finland/Eur.)
archie.th-darmstadt.de or 130.83.128.111  (GER.)
cs.huji.ac.il or 132.65.6.5             (Israel)
archie.kuis.kyoto-u.ac.jp or 130.54.20.1 (JAPAN)
archie.sogang.ac.kr or 163.239.1.11      (Korea)
archie.ncu.edu.tw or telnet 140.115.19.24  (TWN)
archie.doc.ic.ac.uk or 146.169.3.7  (UK/Ireland)
archie.sura.net or 128.167.254.179    (USA [MD])
archie.unl.edu (password: archie1)    (USA [NE])
archie.ans.net or 147.225.1.2         (USA [NY])
archie.rutgers.edu or 128.6.18.15     (USA [NJ])
archie.nz or 130.195.9.4           (New Zealand)
Connect to Archie server with telnet and type "archie" as username.
To get help type 'help'.
You can get 'xarchie' or 'archie', which are clients that call Archie
without the burden of a telnet session.
'Xarchie' is on the X11.R5 contrib tape, and 'archie' on comp.sources.misc,
vol. 27.
To get information on how to use Archie via e-mail, send mail with
subject "help" to "archie" account at any of above sites.
(Note to Janet/PSS users -- the United Kingdom archie site is
accessible on the Janet host doc.ic.ac.uk [000005102000].
Connect to it and specify "archie" as the host name and "archie" as
the username.)
==========================================================================
2. Notes
========
(Excerpted from the FAQ article)
Please do *not* post or mail messages saying "I can't FTP, could
someone mail this to me?"  There are a number of automated mail servers
that will send you things like this in response to a message.
There are a number of sites that archive the Usenet sources newsgroups
and make them available via an email query system.  You send a message
to an automated server saying something like "send comp.sources.unix/fbm",
and a few hours or days later you get the file in the mail.
==========================================================================
3. Computer graphics FTP site list, by Eric Haines
==================================================
Computer graphics related FTP sites (and maintainers), 26/03/93
compiled by Eric Haines, erich@eye.com
and Nick Fotis, nfotis@theseas.ntua.gr
Ray-tracers:
------------
RayShade - a great ray tracer for workstations on up, also for PC, Mac & Amiga.
PoV - son and successor to DKB trace, written by Compuservers.
(For more questions call Drew Wells --
73767.1244@compuserve.com or Dave Buck -- david_buck@carleton.ca)
ART - ray tracer with a good range of surface types, part of VORT package.
DKBtrace - another good ray tracer, from all reports; PCs, Mac II,
Amiga, UNIX, VMS (last two with X11 previewer), etc.
RTrace - Portugese ray tracer, does bicubic patches, CSG, 3D text, etc. etc.
An MS-DOS version for use with DJGPP DOS extender (GO32) exists also,
as a Mac port.
VIVID2 - A shareware raytracer for PCs - binary only (286/287).  Author:
Stephen Coy (coy@ssc-vax.boeing.com).  The 386/387 (no source) version
is available to registered users (US$50) direct from the author.
RAY4 - Steve Hollasch's 4-dimensional ray tracer - renders hyperspheres,
hypertetrahedra, hyperplanes, and hyperparallelepipeds (there's
a separate real-time wireframe viewer written in GL called WIRE4 ) .
MTV,QRT,DBW - yet more ray tracers, some with interesting features.
Distributed/Parallel Raytracers:
--------------------------------
XDART - A distributed ray-tracer that runs under X11. There are server binaries
which work only on DECstations, SPARCs, HP Snakes (7x0 series) and NeXT.
The clients are distributed as binaries and C source.
Inetray - A network version of Rayshade 4.0.  Needs Sun RPC 4.0 or newer.
Contact Andreas Thurnherr (ant@ips.id.ethz.ch)
prt, VM_pRAY - parallel ray tracers.
Volume renderers:
-----------------
VREND - Cornell's Volume Renderer, from Kartch/Devine/Caffey/Warren (FORTRAN).
Radiosity (and diffuse lighting) renderers:
-------------------------------------------
Radiance - a ray tracer w/radiosity effects, by Greg Ward.  Excellent shading
models and physically based lighting simulation.  Unix/X based, though
has been ported to the Amiga and the PC (386).
INDIA - An Indian radiosity package based on Radiance.
SGI_RAD - An interactive radiosity package that runs on SGI machines with a
Spaceball. It includes a house database.
Author: Guy Moreillon <moreillo@ligsg1.epfl.ch>
RAD - a simple public-domain radiosity package in C. The solution can be run
stand-alone on any Unix box, but the walk-through requires a SGI 4D.
Author: Bernard Kwok <g-kwok@cs.yorku.ca>
Renderers which are not raytracers, and graphics libraries:
-----------------------------------------------------------
SIPP - Scan line z-buffer and Phong shading renderer.
Now uses the shadow buffer algorithm.
Tcl-SIPP - a Tcl command interface to the SIPP rendering
program. Tcl-SIPP is a set of Tcl commands used to programmed
SIPP without having to write and compile C code.
Commands are used to specify surfaces, objects,
scenes and rendering options.
It renders either in PPM format or in Utah Raster Toolkit RLE format
or to the photo widget in the Tk-based X11 applications.
VOGLE - graphics learning environment (device portable).
VOGL - an SGI GL-like library based on VOGLE.
REND386 - A *fast* polygon renderer for Intel 386s and up. Version 2 on up.
[ It's not photorealistic, but rather a real-time renderer]
XSHARP21 - Dr. Dobb's Journal PC renderer source code, with budget texture
mapping.
Modellers, wireframe viewers:
-----------------------------
VISION-3D - Mac modeler, can output Radiance & Rayshade files.
IRIT - A CSG solid modeler, with support for freeform surfaces.
X3D - A wireframe viewer for X11.
3DV - 3-D wireframe graphics toolkit, with C source, 3dv objects, other stuff
Look at major PC archives like wuarchive. One such file is 3DKIT1.ZIP
PV3D - a shareware front end modeler for POVRAY, still in beta test.
French docs for now, price for registering 250 French Francs. Save disabled.
Some extra utilities, DXF files for the registered version.
Geometric viewers:
------------------
SALEM - A GL-based package from Dobkin et al. for exploring mathematical
structures.
GEOMVIEW - A GL-based package for looking and interactively manipulating
3D objects, from Geometry Center at Minnesota.
XYZ GeoBench -(eXperimental geometrY Zurich) is a workbench for geometric
computation for Macintosh computers.
WIRE4 - GL wireframe previewer for Steve Hollasch's RAY4 (see above)
Data Formats and Data Sets for Ray Tracing:
-------------------------------------------
SPD - a set of procedural databases for testing ray tracers.
NFF - simplistic file format used by SPD.
OFF - another file format.
P3D - a lispy file format.
TDDD - Imagine (3D modeler) format, has converters for RayShade, NFF, OFF, etc.
Also includes a nice postscript object displayer.  Some GREAT models.
TTDDDLIB - converts to/from TDDD/TTDDD, OFF, NFF, Rayshade 4.0, Imagine,
and vort 3d objects. Also outputs Framemaker MIF files and isometric
views in Postscript. Registered users get a TeX PK font converter and
a superquadric surfaces generator.
Glenn Lewis <glewis@pcocd2.intel.com>
[Note : TTDDDLIB is also known as T3DLIB]
CHVRTD - Chapel Hill Volume Rendering Test Datasets, includes volume sets for
two heads, a brain, a knee, electron density maps for RNA and others.
Written Material on Rendering:
------------------------------
RT News - collections of articles on ray tracing.
RT bib - references to articles on ray tracing in "refer" format.
Rad bib - references to articles on radiosity (global illumination).
Speer RT bib - Rick Speer's cross-referenced RT bib, in postscript.
RT abstracts - collection by Tom Wilson of abstracts of many RT articles.
Paper bank project - various technical papers in electronic form.  Contact
Juhana Kouhia <jk87377@cs.tut.fi>
Online Bibliography Project :
The ACM SIGGRAPH Online Bibliography Project is a database of
over 15,000 unique computer graphics and computational geometry
references in BibTeX format, available to the computer graphics
community as a research and educational resource.
The database is located at "siggraph.org".  Users may download
the BibTeX files via FTP and peruse them offline, or telnet to
"siggraph.org" and log in as "biblio" and interactively search
the database for entries of interest, by keyword.
For the people without Internet access, there's also an e-mail
server. Send mail to
archive-server@siggraph.org
and in the subject or the body of the message include the message  send
followed by the topic and subtopic you wish. A good place to start is
with the command
send index
which will give you an up-to-date list of available information.
Additions/corrections/suggestions may be directed to the admin,
"bibadmin@siggraph.org".
Image Manipulation Libraries:
-----------------------------
Utah Raster Toolkit - nice image manipulation tools.
PBMPLUS - a great package for image conversion and manipulation.
LIBTIFF - library for reading/writing TIFF images.
ImageMagick - X11 package for display and interactive manipulation
of images.  Uses its own format (MIFF), and includes some converters.
xv - X-based image display, manipulation, and format converter.
xloadimage, xli - displays various formats on an X11 screen.
Khoros - a huge, excellent system for image processing, with a visual
programming interface and much much more.  Uses X windows.
FBM - another set of image manipulation tools, somewhat old now.
Img - image manipulation, displays on X11 screen, a bit old now.
xflick - Plays .FLI animation under X11
XAnim - plays any resolution FLI along with GIF's(including GIF89a animation
extensions), DL's and Amiga IFF animations(3,5,J,l) and IFF
pictures(including HAM,EHB and color cycling)
SDSC - SDSC Image Tools package (San Diego Supercomputing Center)
for image manipulation and conversion
CLRpaint - A 24-bit paint program for SGI 24bit workstations and 8bit Indigos.
Libraries with code for graphics:
---------------------------------
Graphics Gems I,II,III - code from the ever so useful books.
spline-patch.tar.Z - spline patch ray intersection routines by Sean Graves
kaleido - Computation and 3D Display of Uniform Polyhedra. Mirrored in
wuarchive. This package computes (and displays) the metrical
properties of 75 polyhedra. Author: Dr. Zvi Har'El,
e-mail: rl@gauss.technion.ac.il
(*) means site is an "official" distributor, so is most up to date.
NORTH AMERICA (please look for things on your own continent first...):
-------------
wuarchive.wustl.edu [128.252.135.4]:  /graphics/graphics - get CONTENTS file
for a roadmap.  /graphics/graphics/objects/TDDD - *the TTDDD objects
and converters*, /mirrors/unix-c/graphics - Rayshade ray tracer, MTV
ray tracer, Vort ray tracer, FBM, PBMPLUS, popi, Utah raster toolkit.
/mirrors/msdos/graphics - DKB ray tracer, FLI RayTracker demos.
/pub/rad.tar.Z - *SGI_RAD*, /graphics/graphics/radiosity - Radiance
and Indian radiosity package.  /msdos/ddjmag/ddj9209.zip - version 21
of Xsharp, with fast texture mapping.  There's lots more, including
bibs, Graphics Gems I & II code, OFF, RTN, Radiance, NFF, SIPP, spline
patch intersection routines, textbook errata, source code from Roy
Hall's book "Illumination and Color in Computer Generated Imagery", etc
graphics/graphics/packages/kaleido - *kaleido*
George Kyriazis <kyriazis@turing.cs.rpi.edu>
princeton.edu [128.112.128.1]:  /pub/Graphics (note capital "G") - *Rayshade
4.0 ray tracer (and separate 387 executable)*, *color quantization
code*, *SPD*, *RT News*, *Wilson's RT abstracts*, "RT bib*, *Utah
Raster Toolkit*, newer FBM, *Graphics Gems I, II & III code*.
/pub/graphics directory - *SALEM* and other stuff.
Craig Kolb <cek@princeton.edu>
[replaces weedeater.math.yale.edu - note the capital "G" in
pub/Graphics] Because there's a trouble with princeton's incoming
area, you can upload Rayshade-specific stuff to
weedeater.math.yale.edu [128.36.23.17]
alfred.ccs.carleton.ca [134.117.1.1]:  /pub/dkbtrace - *DKB ray tracer*,
/pub/pov-ray/POV-Ray1.0 - *PVRay Compuserve group ray tracer (or PoV)*.
David Buck <david_buck@carleton.ca>
avalon.chinalake.navy.mil [129.131.31.11]:  3D objects (multiple formats),
utilities, file format documents.
This site was created to be a 3D object "repository" for the net.
Francisco X DeJesus <dejesus@archimedes.chinalake.navy.mil>
omicron.cs.unc.edu [152.2.128.159]:  pub/softlab/CHVRTD - Chapel Hill
Volume Rendering Test Datasets.
ftp.mv.com [192.80.84.1]: - Official DDJ FTP repository.
*XSHARP*
peipa.essex.ac.uk [155.245.115.161]: the Pilot European Image Processing
Archive; in a directory ipa/synth or something like that, there are
image synthesis packages.
Adrian Clarke <alien@essex.ac.uk>
barkley.berkeley.edu [128.32.142.237] : tcl/extensions/tsipp3.0b.tar.Z -
*Tcl-SIPP*
Mark Diekhans <markd@grizzly.com or markd@NeoSoft.com>
acs.cps.msu.edu [35.8.56.90]: pub/sass - *X window fonts converter into
Rayshade 3.0 polygons*, Rayshade animation tool(s).
Ron Sass <sass@cps.msu.edu>
hobbes.lbl.gov [128.3.12.38]: *Radiance* ray trace/radiosity package.
Greg Ward <gjward@lbl.gov>
geom.umn.edu [128.101.25.31] : pub/geomview - *GEOMVIEW*
Contact (for GEOMVIEW): software@geom.umn.edu
ftp.arc.umn.edu [137.66.130.11] : pub/gvl.tar.Z - the latest version of Bob,
Icol and Raz.  Source, a manual, man pages, and binaries for
IRIX 4.0.5 are included (Bob is a real time volume renderer)
pub/  contains also many volume datasets.
Ken Chin-Purcell <ken@ahpcrc.umn.edu>
ftp.kpc.com [144.52.120.9] : /pub/graphics/holl91 - Steve Hollasch's
Thesis, /pub/graphics/ray4 - *RAY4*, /pub/graphics/wire4 - *WIRE4*.
/pub/mirror/avalon - mirror of avalon's 3D objects repository.
Steve Hollasch <hollasch@kpc.com>
swedishchef.lerc.nasa.gov [139.88.54.33] : programs/hollasch-4d - RAY4,
SGI Explorer modules and Postscript manual, etc.
zamenhof.cs.rice.edu [128.42.1.75] : pub/graphics.formats - Various electronic
documents about many object and image formats.
Mark Hall <foo@cs.rice.edu>
will apparently no longer be maintaining it, see ftp.ncsa.uiuc.edu.
rascal.ics.utexas.edu [128.83.144.1]:  /misc/mac/inqueue - VISION-3D facet
based modeller, can output RayShade and Radiance files.
ftp.ncsa.uiuc.edu [141.142.20.50] :  misc/file.formats/graphics.formats -
contains various image- and object-format descriptions.  Many SciVi
tools in various directories, e.g.  SGI/Alpha-shape/Alvis-1.0.tar.Z -
3D alpha-shape visualizer (SGI machines only),
SGI/Polyview3.0/polyview.Z - interactive visualization and analysis of
3D geometrical structures.
Quincey Koziol <koziol@ncsa.uiuc.edu>
tucana.noao.edu [140.252.1.1] : /iraf - the IRAF astronomy package
ftp.ipl.rpi.edu [128.113.14.50]:  sigma/erich - SPD images and Haines thesis
images.  pub/images - various 24 and 8 bit image stills and sequences.
Kevin Martin <sigma@ipl.rpi.edu>
ftp.psc.edu [128.182.66.148]:  pub/p3d - p3d_2_0.tar P3D lispy scene
language & renderers.  Joel Welling <welling@seurat.psc.edu>
ftp.ee.lbl.gov [128.3.254.68]: *pbmplus.tar.Z*, RayShade data files.
Jef Poskanzer <jef@ace.ee.lbl.gov>
george.lbl.gov [128.3.196.93]: pub/ccs-lib/ccs.tar.Z - *CCS (Complex
Conversion System), a standard software interface for image processing*
hanauma.stanford.edu [36.51.0.16]: /pub/graphics/Comp.graphics - best of
comp.graphics (very extensive), ray-tracers - DBW, MTV, QRT, and more.
Joe Dellinger <joe@hanauma.stanford.edu>
ftp.uu.net [192.48.96.2]:  /graphics - *IRIT*, RT News back issues (not
complete), NURBS models, other graphics related material.
/graphics/jpeg/jpegsrc.v?.tar.Z - Independent JPEG Group package for
reading and writing JPEG files.
freebie.engin.umich.edu [141.212.68.23]:  *Utah Raster Toolkit*,
Spencer Thomas <thomas@eecs.umich.edu>
export.lcs.mit.edu [18.24.0.12] : /contrib - pbmplus, Image Magick, xloadimage,
xli, xv, Img, lots more.  /pub/R5untarred/mit/demos/gpc - NCGA Graphics
Performance Characterization (GPC) Suite.
life.pawl.rpi.edu [128.113.10.2]: /pub/ray - *Kyriazis stochastic Ray Tracer*.
George Kyriazis <kyriazis@turing.cs.rpi.edu>
cs.utah.edu [128.110.4.21]: /pub - Utah raster toolkit, *NURBS databases*.
Jamie Painter <jamie@cs.utah.edu>
gatekeeper.dec.com [16.1.0.2]:  /pub/DEC/off.tar.Z - *OFF models*,
Also GPC Benchmark files (planned, but not checked).
Randi Rost <rost@kpc.com>
hubcap.clemson.edu [130.127.8.1]:  /pub/amiga/incoming/imagine - stuff for the
Amiga Imagine & Turbo Silver ray tracers.  /pub/amiga/TTDDDLIB -
*TTDDDLIB* /pub/amiga/incoming/imagine/objects - MANY objects.
Glenn Lewis <glewis@pcocd2.intel.com>
pprg.eece.unm.edu [129.24.24.10]:  /pub/khoros - *Khoros image processing
package (huge, but great)*.
Danielle Argiro <danielle@bullwinkle.unm.edu>
expo.lcs.mit.edu [18.30.0.212]:  contrib - *PBMPLUS portable bitmap package*,
*poskbitmaptars bitmap collection*, *Raveling Img*, xloadimage.  Jef
Poskanzer <jef@well.sf.ca.us>
venera.isi.edu [128.9.0.32]:  */pub/Img.tar.z and img.tar.z - some image
manipulation*, /pub/images - RGB separation photos.
Paul Raveling <raveling@venera.isi.edu>
ucsd.edu [128.54.16.1]:  /graphics - utah rle toolkit, pbmplus, fbm,
databases, MTV, DBW and other ray tracers, world map, other stuff.
Not updated much recently.
castlab.engr.wisc.edu [128.104.52.10]:  /pub/x3d.2.2.tar.Z - *X3D*
/pub/xdart.1.1.* - *XDART*
Mark Spychalla <spy@castlab.engr.wisc.edu>
sgi.com [192.48.153.1]:  /graphics/tiff - TIFF 6.0 spec & *LIBTIFF* software
and pics.  Also much SGI- and GL-related stuff (e.g. OpenGL manuals)
Sam Leffler <sam@sgi.com>
[supercedes okeeffe.berkeley.edu for the LIBTIFF stuff]
surya.waterloo.edu [129.97.129.72]: /graphics - FBM, ray tracers
ftp.sdsc.edu [132.249.20.22]: /sdscpub - *SDSC*
ftp.brl.mil [128.63.16.158]: /brl-cad - information on how to get the
BRL CAD package & ray tracer.  /images - various test images.
A texture library has also begun here.
Lee A. Butler <butler@BRL.MIL>
cicero.cs.umass.edu [128.119.40.189]:  /texture_temp - 512x512 grayscale
Brodatz textures,
from Julien Flack <julien@scs.leeds.ac.uk>.
karazm.math.uh.edu [129.7.7.6]:  pub/Graphics/rtabs.shar.12.90.Z - *Wilson's
RT abstracts*, VM_pRAY.
J. Eric Townsend <jet@karazm.math.uh.edu or jet@nas.nasa.gov>
ftp.pitt.edu [130.49.253.1]:  /users/qralston/images - 24 bit image archive
(small).  James Ralston Crawford <qralston@gl.pitt.edu>
ftp.tc.cornell.edu [128.84.201.1]: /pub/vis - *VREND*
sunee.waterloo.edu [129.97.50.50]: /pub/raytracers - vivid, *REND386*
[or sunee.uwaterloo.ca]
archive.umich.edu [141.211.164.153]: /msdos/graphics - PC graphics stuff.
/msdos/graphics/raytrace - VIVID2.
apple.apple.com [130.43.2.2?]:  /pub/ArchiveVol2/prt.
research.att.com [192.20.225.2]: /netlib/graphics - *SPD package*, ~/polyhedra -
*polyhedra databases*.  (If you don't have FTP, use the netlib
automatic mail replier:  UUCP - research!netlib, Internet -
netlib@ornl.gov.  Send one line message "send index" for more info,
"send haines from graphics" to get the SPD)
siggraph.org [128.248.245.250]: SIGGRAPH archive site.
publications - *Online Bibliography Project*, Conference proceedings
in various electronic formats (papers, panels), SIGGRAPH Video Review
information and order forms.
Other stuff in various directories.
Automatic mailer is archive-server@siggraph.org ("send index").
ftp.cs.unc.edu [128.109.136.159]: pub/reaction_diffusion - Greg Turk's work on
reaction-diffusion textures, X windows code (SIGGRAPH '91)
avs.ncsc.org [128.109.178.23]:  ~ftp/VolVis92 - Volume datasets from the
Boston Workshop on Volume Visualization '92.  This site is also the
International AVS Center.
Terry Myerson <tvv@ncsc.org>
uvacs.cs.virginia.edu [128.143.8.100]:  pub/suit/demo/{sparc,dec,etc} - SUIT
(Simple User Interface Toolkit).  "finger suit@uvacs.cs.virginia.edu"
to get detailed instructions.
nexus.yorku.ca [130.63.9.66]: /pub/reports/Radiosity_code.tar.Z - *RAD*
/pub/reports/Radiosity_thesis.ps.Z - *RAD MSc. Thesis*
[This site will be changed to ftp.yorku.ca in the near future]
milton.u.washington.edu [128.95.136.1] - ~ftp/public/veos - VEOS Virtual
Reality and distributed applications prototyping environment
for Unix. Veos Software Support : veos-support@hitl.washington.edu
oldpublic/fly - FLY! 3D Visualization Software demo.
That package is built for "fly-throughs" from various datasets in
near real-time. There are binaries for many platforms.
Also, much other Virtual Reality stuff.
zug.csmil.umich.edu [141.211.184.2]: X-Xpecs 3D files (an LCD glass shutter
for Amiga computers - great for VR stuff!)
sugrfx.acs.syr.edu [128.230.24.1]: Various stereo-pair images.
[ Has closed down :-( ]
sunsite.unc.edu [152.2.22.81]: /pub/academic/computer-science/virtual-reality -
Final copy of the sugrfx.acs.syr.edu archive that ceased to exist.
It contains Powerglove code, VR papers, 3D images and IRC research
material.
Jonathan Magid <jem@sunSITE.unc.edu>
archive.cis.ohio-state.edu [128.146.8.52]: pub/siggraph92 - Code for
Siggraph '92 Course 23 (Procedural Modeling and Rendering Techniques)
Dr. David S. Ebert <ebert@cis.ohio-state.edu>
lyapunov.ucsd.edu [132.239.86.10]: This machine is considered the
repository for preprints and programs for nonlinear dynamics,
signal processing, and related subjects  (and fractals, of course!)
Matt Kennel <mbk@inls1.ucsd.edu>
cod.nosc.mil [128.49.16.5]: /pub/grid.{ps,tex,ascii} - a short survey of
methods to interpolate and contour bivariate data
ics.uci.edu [128.195.1.1]: /honig --- Various stereo-pair images,
movie.c - animates a movie on an X display (8-bit and mono) with
digital subtraction.
taurus.cs.nps.navy.mil [131.120.1.13]: pub/dabro/cyberware_demo.tar.Z - Human
head data
pioneer.unm.edu [129.24.9.217]:  pub/texture_maps - Hans du Buf's grayscale
test textures (aerial swatches, Brodatz textures, synthetic swatches).
Space & planetary image repository.  Provides access to >150 CD-ROMS
with data/images (3 on-line at a time).
pub/info/beginner-info - here you should start browsing.
Colby Kraybill <opus@pioneer.unm.edu>.
cs.brown.edu [128.148.33.66] : *SRGP/SPHIGS* . For more info on SRGP/SPHIGS:
mail -s 'software-distribution' graphtext@cs.brown.edu
pdb.pdb.bnl.gov [130.199.144.1] has data about various organic molecules,
bonds between the different atoms, etc.
Atomic coordinates (and a load of other stuff) are contained in the
"*.ent" files, but the actual atomic dimemsions seem to be missing.
You could convert these data to PoV, rayshade, etc.
biome.bio.ns.ca [142.2.20.2] : /pub/art - some Renoir paintings,
Escher's pictures, etc.
ic16.ee.umanitoba.ca [] : /specmark - sample set of images from the
`Images from the Edge' CD-ROM (images of atomic landscapes, advanced
semiconductors, superconductors and experimental surface
chemistry among others). Contact ruskin@ee.umanitoba.ca
explorer.dgp.toronto.edu [128.100.1.129] : pub/sgi/clrpaint - *CLRpaint*
pub/sgi/clrview.* - CLRview, a tool that aids in visualization
of GIS datasets in may formats like DXF, DEM, Arc/Info, etc.
ames.arc.nasa.gov [128.102.18.3]: pub/SPACE/CDROM - images from Magellan
and Viking missions etc. Get pub/SPACE/Index first.
pub/SPACELINK has most of the SpaceLink service data (see below)
e-mail server available: send mail to archive-server@ames.arc.nasa.gov
(or ames!archive-server) with subject:"help"
or "send SPACE Index" (without the quotes!)
Peter Yee <yee@ames.arc.nasa.gov>
pubinfo.jpl.nasa.gov [128.149.6.2]: images, other data, etc. from JPL
missions. Modem access at (818)-354-1333 (no parity, 8 data bits, 1
stop bit).
newsdesk@jplpost.jpl.nasa.gov or phone (818)-354-7170
spacelink.msfc.nasa.gov [128.158.13.250] (passwd:guest) : space graphics
and GIF images from NASA's planetary probes and the Hubble Telescope.
Main function is support for teachers (you can telnet also to this
site). Dial up access: (205)-895-0028 (300/1200/2400/9600(V.32) baud,
8 bits, no parity, 1 stop bit).
stsci.edu [130.167.1.2] : Hubble Space Telescope stuff (images and other
data). Read the README first!
Pete Reppert <reppert@stsci.edu> or Chris O'Dea <odea@stsci.edu>
pit-manager.mit.edu [18.172.1.27]:  /pub/usenet/news.answers - the land of
FAQs.  graphics and pictures directories of particular interest.
[Also available from mail-server@pit-manager.mit.edu by sending a mail
message containing: help]
UUCP archive: avatar - RT News back issues.  For details, write Kory Hamzeh
<kory@avatar.avatar.com>
EUROPE:
-------
nic.funet.fi [128.214.6.100]:  *pub/sci/papers - *Paper bank project,
including Pete Shirley's entire thesis (with pics)*, *Wilson's RT
abstracts*, pub/misc/CIA_WorldMap - CIA world data bank,
comp.graphics.research archive, *India*, and much, much more.
Juhana Kouhia <jk87377@cs.tut.fi>
dasun2.epfl.ch [128.178.62.2]:  Radiance. Good for European sites, but
doesn't carry the add-ons that are available for Radiance.
isy.liu.se [130.236.1.3]:  pub/sipp/sipp-3.0.tar.Z - *SIPP* scan line z-buffer
and Phong shading renderer.  Jonas Yngvesson <jonas-y@isy.liu.se>
irisa.fr [131.254.2.3]:  */iPSC2/VM_pRAY ray tracer*, SPD, /NFF - many non-SPD
NFF format scenes, RayShade data files.  Didier Badouel
<badouel@irisa.irisa.fr> [may have disappeared]
phoenix.oulu.fi [130.231.240.17]:  *FLI RayTracker animation files (PC VGA) -
also big .FLIs (640*480)* *RayScene demos* [Americans:  check wuarchive
first].  More animations to come.  Jari Kahkonen
<hole@phoenix.oulu.fi>
jyu.fi [128.214.7.5]: /pub/graphics/ray-traces - many ray tracers, including
VM_pRAY, DBW, DKB, MTV, QRT, RayShade, some RT News, NFF files.  Jari
Toivanen <toivanen@jyu.fi>
garbo.uwasa.fi [128.214.87.1]:  Much PC stuff, etc., /pc/source/contour.f -
FORTRAN program to contour scattered data using linear triangle-based
interpolation
asterix.inescn.pt [192.35.246.17]:  pub/RTrace - *RTrace* nffutils.tar.Z (NFF
utilities for RTrace), medical data (CAT, etc.)  converters to NFF,
Autocad to NFF Autolisp code, AUTOCAD 11 to SCN (RTrace's language)
converter and other goodies.  Antonio Costa (acc@asterix.inescn.pt)
vega.hut.fi [128.214.3.82]: /graphics - RTN archive, ray tracers (MTV, QRT,
others), NFF, some models.
[ It was shut down months ago , check under nic.funet.fi -- nfotis ]
sun4nl.nluug.nl [192.16.202.2]: /pub/graphics/raytrace - DBW.microray, MTV, etc
unix.hensa.ac.uk [] : misc/unix/ralcgm/ralcgm.tar.Z - CGM viewer and
converter.
There's an e-mail server also - mail to archive@unix.hensa.ac.uk
with the message body "send misc/unix/ralcgm/ralcgm.tar.Z"
maeglin.mt.luth.se [130.240.0.25]:  graphics/raytracing - prt, others, ~/Doc -
*Wilson's RT abstracts*, Vivid.
ftp.fu-berlin.de [130.20.225.2]:  /pub/unix/graphics/rayshade4.0/inputs -
aq.tar.Z is RayShade aquarium [Americans:  check princeton.edu first).
Heiko Schlichting <heiko@math.fu-berlin.de>
maggia.ethz.ch [129.132.17.1]: pub/inetray - *Inetray* and Sun RPC 4.0 code
Andreas Thurnherr <ant@ips.id.ethz.ch>
osgiliath.id.dth.dk [129.142.65.24]:  /pub/amiga/graphics/Radiance - *Amiga
port of Radiance 2.0*.  Per Bojsen <bojsen@ithil.id.dth.dk>
ftp.informatik.uni-oldenburg.de [134.106.1.9] : *PoV raytracer*
Mirrored in wuarchive, has many goods for PoV.
pub/dkbtrace/incoming/polyray - Polyray raytracer
pub/dkbtrace/incoming/pv3d* - *PV3D*
ftp.uni-kl.de [131.246.9.95]: /pub/amiga/raytracing/imagine - mirror of
the hubcap Imagine files.
neptune.inf.ethz.ch [129.132.101.33]: XYZ - *XYZ GeoBench*
Peter Schorn <schorn@inf.ethz.ch>
iamsun.unibe.ch [130.92.64.10]: /Graphics/graphtal* - a L-system interpreter.
Christoph Streit <streit@iam.unibe.ch>
amiga.physik.unizh.ch [130.60.80.80]: /amiga/gfx - Graphics stuff
for the Amiga computer.
stesis.hq.eso.org [134.171.8.100]: on-line access to a huge astronomical
database. (login:starcat;no passwd)
DECnet:STESIS (It's the Space Telescope European Coordination Facility)
Benoit Pirenne <bpirenne@eso.org>, phone +49 89 320 06 433
MIDDLE EAST
-----------
gauss.technion.ac.il [132.68.112.60]: *kaleida*
AUSTRALIA:
----------
gondwana.ecr.mu.oz.au [128.250.70.62]: pub - *VORT(ART) ray tracer*, *VOGLE*,
Wilson's ray tracing abstracts, /pub/contrib/artscenes (ART scenes from
Italy), pub/images/haines - Haines thesis images, Graphics Gems code,
SPD, NFF & OFF databases, NFF and OFF previewers, plus some 8- and
24bit images and lots of other stuff.  pub/rad.tar.Z - *SGI_RAD*
Bernie Kirby <bernie@ecr.mu.oz.au>
munnari.oz.au [128.250.1.21]:  pub/graphics/vort.tar.Z - *VORT (ART) 2.1 CSG and
algebraic surface ray tracer*, *VOGLE*, /pub - DBW, pbmplus.  /graphics
- room.tar.Z (ART scenes from Italy).
David Hook <dgh@munnari.oz.au>
marsh.cs.curtin.edu.au [134.7.1.1]: pub/graphics/bibliography/Facial_Animation,
pub/graphics/bibliography/Morph, pub/graphics/bibliography/UI -
stuff about Facial animation, Morphing and User Interfaces.
pub/fascia - Fred Parke's fascia program.
Valerie Hall <val@lillee.cs.curtin.edu.au>
OCEANIA - ASIA:
---------------
ccu1.aukland.ac.nz [130.216.1.5]:  ftp/mac/architec - *VISION-3D facet
based modeller, can output RayShade files*.  Many other neat things
for Macs.  Paul Bourke <pdbourke@ccu1.aukland.ac.nz>
scslwide.sony.co.jp [133.138.199.1]:  ftp2/SGI/Facial-Animation - Steve Franks
site for facial animation.
Steve Franks <stevef@csl.sony.co.jp OR stevef@cs.umr.edu>
4. Mail servers and graphics-oriented BBSes
===========================================
Please check first with the FTP places above, with archie's help.
Don't overuse mail servers.
There are some troubles with wrong return addresses. Many of these
mail servers have a command like
path a_valid_return_e-mail_address
to get a hint for sending back to you stuff.
DEC's FTPMAIL
-------------
Send a one-line message to ftpmail@decwrl.dec.com WITHOUT a Subject: field,
and having a line containing the word 'help'.
You should get back a message detailing the relevant procedures you
must follow in order to get the files you want.
Note that the "reply" or "answer" command in your mailer will not work
for this message or any other mail you receive from FTPMAIL.  To send
requests to FTPMAIL, send an original mail message, not a reply.
Complaints should be sent to the ftpmail-request@uucp-gw-2.pa.dec.com
address rather than to postmaster, since DECWRL's postmaster is not
responsible for fixing ftpmail problems.
BITFTP
------
For BITNET sites ONLY, there's BITFTP@PUCC.
Send a one-line 'help' message to this address for more info.
Lightwave 3D mail based file-server
-----------------------------------
A mail based file server for 3D objects, 24bit JPEG images, GIF images
and image maps is now online for all those with Internet mail access.
The server is the official archive site for the Lightwave 3D mail-list
and contains many PD and Shareware graphics utilities for
several computer platforms including Amiga, Atari, IBM and Macintosh.
The server resides on a BBS called "The Graphics BBS".  The BBS is
operational 24 hours a day 7 days a week at the phone number of +1
908/469-0049.  It has upgraded its modem to a Hayes Ultra 144
V.32bis/V.42bis, which has speeds from 300bps up to 38,400bps.
If you would like to submit objects, scenes or images to the server,
please pack, uuencode and then mail the files to the address:
server@bobsbox.rent.com.
For information on obtaining files from the server send a mail message
to the address file-server@graphics.rent.com with the following in
the body of the message:
HELP
/DIR
And a help file describing how to use the server and a complete
directory listing will be sent to you via mail.
[ Now it includes the Cyberware head and shouders in TTDDD format! Check it
out, only if you can't use FTP! -- nfotis ]
INRIA-GRAPHLIB
--------------
Pierre Jancene and Sabine Coquillart launched the inria-graphlib mail
server a few months ago.
echo help | mail inria-graphlib@inria.fr
will give you a quick summary of what inria-graphlib contains and
how to browse among its files.
echo send contents | mail inria-graphlib@inria.fr
will return the extended summary.
As an other example :
echo send cgrl from Misc | mail inria-graphlib@inria.fr
will return the Computer Graphics Resource Listing mirrored from
comp.graphics.
BBSes
-----
There are many BBSes that store datafiles, etc.etc., but a guide to these
is beyond the scope of this Listing (and the resources of the author!)
If you can point to me Internet- or mail- accessible BBSes that carry
interesting stuff, send me info!
Studio Amiga is a 3D modelling and ray tracing specific BBS, (817) 467-3658.
24 hours, 105 Meg online.
--
From Jeff Walkup <pwappy@well.sf.ca.us>:
"The Castle" 415/355-2396 (14.4K/v.32bis/v.42/v.42bis/MNP)
(In Pacifica, dang close to San Francisco, California, USA)
The new-user password is: "TAO".
[J]oin base #2; The Castle G/FX, Anim, Video, 3D S.I.G., of which
I am the SIG-Op, "Lazerus".
--
Bob Lindabury operates a BBS (see above the entry for "The Graphics BBS")
--
'You Can Call Me Ray' ray tracing related BBS in Chicago suburbs (708-358-5611)
or (708-358-8721)
--
Digital Pixel (Sysop: Mark Ng <mcng@descartes.waterloo.edu>) is based at
Toronto, Ontario, Canada.
Phone : (416) 298 1487
Storage space: 330 megs
Modem type:  14.4k baud,16.8k (Zyxel) , v32bis ,v32, mnp 5
Access Fee: none.. (free)
System supported : DOS, OS/2, Amiga, Mac.
Netmail:     Currently no echo mail.
Topics:      Raytracing, Fractals, Graphics programming, CAD, Any Comp.
Graphics related
--
From: David Tiberio <dtiberio@ic.sunysb.edu>
Amiga Graphics BBS (516) 473-6351 in Long Island, New York,
running 24 hours at 14.4k v.32bis, with 157 megs on line.
We also subscribe to 9 mailing lists, of which 5 originate
from our BBS, with 3 more to be added soon. These include:
Lightwave, Imagine, Real 3D (ray tracing)
Database files include:
Imagine 3D objects, 3D renderings, scalable fonts, music
modules, sound samples, demos, animations, utilities,
text databases, and pending Lightwave 3D objects.
--
The Graphics Alternative
The Graphics Alternative is in El Cerrito, CA., running 24 hours a
day at 14.4k HST/v.32bis, with 642MB online and a 1300+ user base.
TGA runs two nodes, node 1 (510) 524-2780 is for public access and
includes a free 90 day trial subscription.  TGA is the West Coast
Host for PCGnet, The Profesional CAD and Graphics Network, supporting
nodes across the Continental U.S., Alaska, New Zealand, Australia,
France and the UK.
TGA's file database includes MS-DOS executables for POV, Vivid,
RTrace, Rayshade, Polyray, and others.  TGA also has numerous
graphics utilities, viewers, and conversion utilities.  Registered
Vivid users can also download the latest Vivid aeta code from a
special Vivid conference.
--
From: Scott Bethke <sbathkey@access.digex.com>
The Intersection BBS, 410-250-7149.
This BBS Is dedicated to supporting 3D Animators.The system is provided
FREE OF CHARGE, and is NOT Commercialized in ANYWAY.
Users are given FULL Access on the first call.
Features: Usenet NEWS & Internet Mail, Fidonet Echo's & Netmail,
200 Megs online, V.32bis/V.42bis Modem.
Platforms of interest: Amiga & The VideoToaster, Macintosh, Ms-Dos,
Unix Workstations (Sun, SGI, etc), Atari-ST.
--
From: Alfonso Hermida <afanh@robots.gsfc.nasa.gov>:
Pi Square BBS (301)725-9080 in Maryland. It supports raytracers such as POV
and VIVID. The BBS runs off a 486/33Mhz, 100Megs hard drive and CD ROM.
Now it runs on 1200-2400bps (this will change soon)
Topics: graphics programming, animation,raytracing,programming (general)
--
From: Lynn Falkow <ROXXIE@delphi.com>:
Vertech Design's GRAPHIC CONNECTION. (503) 591-8412 in Portland, Oregon.
V.32/V.42bis.
The BBS, aside from carrying typical BBS services like message bases
( all topic specific ) and files ( CAD and graphics related -- hundreds
of megabytes ), also offers material texture files that are full color,
seamlessly tiling, photo-realistic images.  There are samples available
to first time callers.  The BBS is a subscription system although callers
have 2 hours before they must subscribe, and there are several subscription
rates available.   People interested in materials can subscribe to the
library in addition to a basic subscription rate, and can use their
purchased time to download whichever materials they wish.
==========================================================================
5. Ray-tracing/graphics-related mailing lists
=============================================
Imagine
-------
Modeling and animation system for the Amiga:
send subscription requests to Imagine-request@email.sp.paramax.com
send material to Imagine@email.sp.paramax.com
(Dave Wickard has substituted Steve Worley in the maintenance of
the mailing list) - PLEASE note that the unisys.com address is
NO longer valid!!!
Lightwave
---------
(for the Amiga. It's part of Newtek's Video Toaster):
send subscription requests to lightwave-request@bobsbox.rent.com
send material to lightwave@bobsbox.rent.com
(Bob Lindabury)
Toaster
-------
send subscription requests to listserv@karazm.math.uh.edu with a *body* of:
subscribe toaster-list
Real 3D
-------
Another modeling and animation system for the Amiga:
To subscribe, send a mail containing the body
subscribe real3d-l <Your full name>
to listserv@gu.uwa.edu.au
Rayshade
--------
send subscription requests to rayshade-request@cs.princeton.edu
send material to rayshade-users@cs.princeton.edu
(Craig Kolb)
Alladin 4D for the Amiga
----------
send subscription requests to subscribe@xamiga.linet.org
and in the body of the message write
#Alladin 4D username@domain
Radiance
--------
Greg Ward, the author, sends to registered (via e-mail) users digests of
his correspodence with them, notes about fixes, updates, etc.
His address is: gjward@lbl.gov
REND386
-------
send subscription requests to rend386-request@sunee.waterloo.edu
send material to rend386@sunee.waterloo.edu
PoV ray / DKB raytracers
------------------------
To subscribe, send a mail containing the body
subscribe dkb-l <Your full name>
to listserv@trearn.bitnet
send material to dkb-l@trearn.bitnet
Mailing List for Massively Parallel Rendering
---------------------------------------------
send subscription requests to mp-render-request@icase.edu
send material to mp-render@icase.edu
==========================================================================
6. 3D graphics editors
======================
a. Public domain, free and shareware systems
============================================
VISION-3D
---------
Mac-based program written by Paul D. Bourke (pdbourke@ccu1.aukland.ac.nz).
The program can be used to generate models directly in the RayShade
and Radiance file formats (polygons only).
It's shareware and listed on the FTP list.
BRL
---
A solid modeling system for most environments -- including SGI and X11.
It has CSG and NURBS, plus support for Non-Manifold Geometry
[Whatever it is].
You can get it *free* via FTP by signing and returning the relevant license,
found on ftp.brl.mil. Uses ray-tracing for engineering analyses.
Contact:
Ms. Carla Moyer
(410)-273-7794 tel.
(410)-272-6763 FAX
cad-dist@brl.mil E-mail
Snail mail:
BRL-CAD Distribution
SURVIAC Aberdeen Satellite Office 1003
Old Philadelphia Road,
Suite 103 Aberdeen
MD  21001  USA
IRIT
----
A constructive solid geometry (CSG) modeling program for PC and X11.
Includes freeform surface support. Free - see FTP list for where to
find it.
SurfModel
---------
A solid modeling program for PC written in Turbo Pascal 6.0 by
Ken Van Camp. Available from SIMTEL, pd1:<msdos.srfmodl> directory.
NOODLES
-------
From CMU, namely Fritz Printz and Levent Gursoz (elg@styx.edrc.cmu.edu).
It's based on Non Manifold Topology.
Ask them for more info, I don't know if they give it away.
XYZ2
----
XYZ2 is an interactive 3-D editor/builder written by Dale P. Stocker to
create objects for the SurfaceModel, Automove, and DKB raytracer packages.
XYZ2 is free and can be found, for example, in SIMTEL20 as
<MSDOS.SURFMODL>XYZ21.ZIP (DOS only??)
3DMOD
-----
It's an MSDOS program. Check at barnacle.erc.clarkson.edu [128.153.28.12],
/pub/msdos/graphics/3dmod.* . Undocumented file format :-(
3DMOD is (C) 1991 by Micah Silverman, 25 Pierrepoint Ave., Postdam,
New York 13676, tel. 315-265-7140
NORTHCAD
--------
Shareware, <MSDOS.CAD>NCAD3D42.ZIP in SIMTEL20. Undocumented file format :-(
Vertex
------
(Amiga)
Shareware, send $40 US (check or money order) to:
The Art Machine, 4189 Nickolas
Sterling Heights, MI  48310
USA
In addition to the now standard file formats, including Lightwave,
Imagine, Sculpt, Turbo Silver, GEO and Wavefront, this release offers
3D Professional and RayShade support. (Rayshade is supported only by
the primitive "triangle", but you can easily include this output in
your RayShade scripts)
The latest demo, version 1.62, is available on Fred Fish #727.
For more information, contact the author, Alex Deburie, at:
ad99s461@sycom.mi.org, Phone: (313) 939-2513
ICoons
------
(Amiga)
It's a spline based object modeller ("ICoons" = Interactive
COONS path editor) in amiga.physik.unizh.ch (gfx/3d/ICoons1.0.lzh).
It's free (under the GNU Licence) and requires FPU.
The program has a look&feel which is a cross between Journeyman and
Imagine, and it generates objects in TTDDD format.
It is possible to load Journeyman objects into ICoons, so the program
can be used to convert JMan objects to Imagine format.
Author: Helge E. Rasmussen <her@compel.dk>
PHONE + 45 36 72 33 00, FAX   + 45 36 72 43 00
[ It's also on Fred Fish disk series n.775 - nfotis ]
ProtoCAD 3D
-----------
Ver 1.1 from Trius (shareware?)
It's at wsmr-simtel20.army.mil and oak.oakland.edu as PCAD3D.ZIP (for PCs)
It has this menu layout:
FILE       File handling (Load, Save, Import, Xport...)
DRAW       Draw 2D objects (Line, Circle, Box...)
3D         Draw 3D objects (Mesh, Sphere, Block...)
EDIT       Editing features (Copy, Move ...)
SURFACE    Modify objects (Revolve, Xtrude, Sweep...)
IMAGE      Image zooming features (Update, Window, Half...)
OPTION     Global defaults (Grid, Toggles, Axis...)
PLOT       Print drawing/picture (Go, Image...)
RENDER     Shade objects (Frame, Lighting, Tune...)
LAYER      Layer options (Select active layer, set Colors...)
+Sculptura
+---------
+  Runs under Windows 3.1, and outputs PoV files. A demo can be found
+  on wuarchive.wustl.edu in mirrors/win3/demo/demo3d.zip
+
+  Author: Michael Gibson <gibsonm@stein.u.washington.edu>
b. Commercial systems
=====================
Alpha_1
-------
A spline-based modeling program written in University of Utah.
Features: splines up to trimmed NURBS; support for boolean operations;
sweeps, bending, warping, flattening etc.; groups of objects, and
transformations; extensible object types.
Applications include: NC machining, Animation utilities,
Dimensioning, FEM analysis, etc.
Rendering subsystem, with support for animations.
Support the following platforms: HP 300 and 800's (X11R4, HP-UX 6.5),
SGI 4D or PI machines (X11R4 and GL, IRIX 3.3.1), Sun SparcStation
(X11R4, SunOS 4.1.1).
Licensing and distribution is handled by EGS:
Glenn McMinn, President
Engineering Geometry Systems
275 East South Temple, Suite 305
Salt Lake City, UT  84111
(801) 575-6021
mcminn@cs.utah.edu
[ Educational pricing ]
The charge is $675 per platform.  You may run the system on as many
different workstations of that type as you wish.  For each platform
there is also a $250 licensing fee for Portable Standard Lisp (PSL)
which is bundled with the system.  You need to obtain an additional
license from the University of Utah for PSL from the following address:
Professor Robert Kessler
Computer Science Department
University of Utah
Salt Lake City, Utah 84112
[ EGS can handle the licensing of PSL for U.S. institutions for a
300 $USD nominal fee -- nfotis ]
VERTIGO
-------
They have an Educational Institution Program. The package is used in
the industrial design, architectural, scientific visualization,
educational, broadcast, imaging and post production fields.
They'll [quoting from a letter sent to me -- nfotis ] "donate fully
configured Vertigo 3D Graphics Software worth over $29,000USD per
package to qualified educational institutions for licencing on any
number of Silicon Graphics Personal IRIS or POWER Series Workstations.
If you use an IRIS Indigo station, we will also licence our Vertigo
Revolution Software (worth $12,000USD).
If you are interested in participating in this program please send a
letter by mail or fax (604/684-2108) on your institution's letterhead
briefly outlining your potential uses for Vertigo together with the
following information: 1. UNIX version 2. Model and number of SGI
systems 3. Peripheral devices 4. Third Party Software.
Participants will be asked to contribute $750USD per institution to cover
costs of the manual, administration, and shipping.
We recommend that Vertigo users subscribe to our technical support
services. For an annual fee you will receive: technical assistance
on our support hotline, bug fixes, software upgrades and manual updates.
For educational institution we will waive the $750 administration fee
if support is purchased.
The annual support fee is $2,500 plus the following cost for additional
machines:
Number of machines:		2-20		20+
Additional cost per machine:	$700		$600 "
[ There's also a 5-day training program - nfotis]
Contact:
Vertigo Technology INC
Suite 1010
1030 West Georgia St.
VANCOUVER, BC
CANADA, V6E 2Y3
Phone: 604/684-2113
Fax:   604/684-2108
[ Does anyone know of such offers from TDI, Alias, Softimage, Wavefront,
etc.??? this would be a VERY interesting part!!  -- nfotis ]
PADL-2
------
[ Basically, it's a Solid Modeling Kernel in top of which you build your
application(s)]
Available by license from
Cornell Programmable Automation
Cornell University
106 Engineering and Theory Center
Ithaca, NY 14853
License fees are very low for educational institutions and gov't agencies.
Internal commercial licenses and re-dissemination licenses are available.
For an information packet, write to the above address, or send your
address to:   marisa@cpa.tn.cornell.edu (Richard Marisa)
ACIS
----
From Spatial Technology. It's a Solid Modelling kernel callable from C.
Heard that many universities got free copies from the company.
The person to contact regarding ACIS in academic institutions is
Scott Owens, e-mail: sdo@spatial.com
And their address is:
Spatial Technology, Inc.
2425 55th St., Bldg. A
Boulder, CO 80301-5704
Phone: (303) 449-0649, Fax: (303) 449-0926
MOVIE-BYU / CQUEL.BYU
---------------------
Basically [in my understanding], this is a FEM pre- and post-proccessor
system. It's fairly old today, but it still serves some people in
Mech. Eng. Depts.
Now it's superseded from CQUEL.BYU (pronounced "sequel"). That's a
complete modelling, animation and visualization package. Runs in the usual
workstation environments (SUN, DEC, HP, SGI, IBM RS6000, and others)
You can get a demo version (30-days trial period) either by sending $20
USD in their address or a blank tape. It costs 1,500 for a full run-time
licence.
Contact:
Engineering Computer Graphics Lab
368 Clyde Building, Brigham Young Univ.
Provo, UT 84602
Phone: 801-378-2812
E-mail: cquel@byu.edu
twixt
-----
Soon to add stuff about it... If I get a reply to my FAX
VOXBLAST
--------
It's a volume renderer marketed by:
Vaytek Inc. (Fairfield, Iowa phone: 515-472-2227) , running on PCs
with 386+FPU at least.  Call Vaytek for more info.
VoxelBox
--------
A 3D Volume renderer for Windows. Features include direct
ray-traced volume rendering, color and alpha mapping,
gradient lighting, animation, reflections and shadows.
Runs on a PC(386 or higher) with at least an 8 bit video card(SVGA is fine)
under Windows 3.x. It costs $495.
Contact:
Jaguar Software Inc.
573 Main St., Suite 9B
Winchester, MA 01890
(617) 729-3659
jwp@world.std.com (john w poduska)
==========================================================================
7. Scene description languages
==============================
NFF
---
Neutral file format , by Eric Haines. Very simple, there are some
procedural database generators in the SPD package, and many objects
floating in various FTP sites. There's also a previewer written in
HP Starbase from E.Haines. Also there's one written in VOGLE, so you can
use any of the devices VOGLE can output on.
(Check in sites carrying VOGLE, like gondwana.ecr.mu.oz.au)
OFF
---
Object file format, from DEC's Randy Rost (rost@kpc.com).
[ The object archive server seems to be mothballed. In a future version,
I'll remove the ref. to it -- nfotis ]
Available also through their mail server. To obtain help about using this
service, send a message with a "Subject:" line containing only the word
"help" and a null message body to: object-archive-server@decwrl.dec.com.
[For FTP places to get it, see in the relevant place]. There's an OFF
previewer for SGI 4D machines, called off-preview in
godzilla.cgl.rmit.oz.au . There are previewers for xview and sunview,
also on gondwana.
TDDD
----
It's a library of 3D objects with translators to/from OFF, NFF,
Rayshade, Imagine or vort objects.
Edited copy of the announcement follows (from Raytracing News, V4,#3):
New Library of 3D Objects Available via FTP, by Steve Worley
(worley@cup.portal.com)
I have assembled a set of over 150 3D objects in a binary format
called TDDD. These objects range from human figures to airplanes,
from semi-trucks to lampposts.  These objects are all freely
distributable, and most have READMEs that describe them.
In order to convert these objects to a human-readable format, a file
with the specification of TDDD is included in the directory with the
objects. There is also a shareware system called TTDDDLIB (officially
on hubcap.clemson.edu) that will convert (ala PBM+) to/from various
object formats : Imagine TTDDD (extension of TDDD?), OFF, NFF,
Rayshade 4.0, or vort. Source included for Amiga/Unix as executables
for the Amiga. Also outputs Framemaker MIF files and isometric views
in Postscript.
P3D
---
From Pittsburgh Supercomputing Center. The P3D uses lisp with slight
extensions to store three-dimensional models. A simple lisp
interpreter is included with the P3D release, so there is no need to
have access to any vendor's lisp to run this software.
The mouse-driven user interfaces for Motif, Open Look, and Silicon
Graphics GL, and the DrawP3D subroutine library for generating P3D
without ever looking at the underlying Lisp.
The P3D software currently supports nine renderers.  They are:
Painter - Painter's Algorithm, Dore, Silicon Graphics Inc. GL language,
Generic Phigs, Sun Phigs+, DEC Phigs+, Rayshade, ART ray tracer (from
VORT package) and Pixar RenderMan.
The code is available via anonymous FTP from the machines
ftp.psc.edu, directory pub/p3d, and nic.funet.fi, directory
pub/graphics/programs/p3d.
RenderMan
---------
Pixar's RenderMan is not free - call Pixar for details.
==========================================================================
8. Solids description formats
=============================
a. EEC's ESPRIT project 322 CAD*I (CAD Interfaces) has developed a
neutral file format for transfer of CAD data (curves, surfaces, and
solid models between CAD systems and from CAD to CAA (Computer Aided
Analysis) an CAM (Computer Aided Manufacturing)
b. IGES [v. 5.1 now] tries to define a standard to tranfer solid
models - Brep and CSG. The current standard number is ANSI Y14.26M-1987
For documentation, you might want to contact Nancy Flower at
NCGA Technical Services and Standards, 1-800-225-6242 ext. 325
and the cost is $100.
This standard is not available in electronic format.
c. PDES/STEP : This slowly emerging standard tries to encompass not only
the geometrical information, but also for things like FEM, etc.
The main bodies besides this standard are NIST and DARPA. You can get
more information about PDES by sending mail to nptserver@cme.nist.gov
and putting the line
send index
in the body (NOT the Subject:) area of the message.
The people at Rutherford Appleton Lab.  are also working
on STEP tools: they have an EXPRESS compiler and an Exchange file parser,
both available in source form (and for free) for research purposes.
Soon they will also have an EXPRESS-based database system.
For the tools contact Mike Mead, Phone: +44 (0235) 44 6710 (FAX: x 5893),
e-mail: mm@inf.rl.ac.uk or {...!}mcsun!uknet!rlinf!mm or
mm%inf.rl.ac.uk@NSFnet-relay.ac.uk
==========================================================================
End of Part 1 of the Resource Listing
--
Nick (Nikolaos) Fotis         National Technical Univ. of Athens, Greece
HOME: 16 Esperidon St.,       InterNet : nfotis@theseas.ntua.gr
Halandri, GR - 152 32   UUCP:    mcsun!ariadne!theseas!nfotis
Athens, GREECE          FAX: (+30 1) 77 84 578
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Ellipse from Its Offset
Organization: University of Southern California, Los Angeles, CA
Lines: 17
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
Keywords: ellipse
Hi! Everyone,
Since some people quickly solved the problem of determining a sphere from
4 points, I suddenly recalled a problem which is how to find the ellipse
from its offset. For example, given 5 points on the offset, can you find
the original ellipse analytically?
I spent two months solving this problem by using analytical method last year,
but I failed. Under the pressure, I had to use other method - nonlinear
programming technique to deal with this problem approximately.
Any ideas will be greatly appreciated. Please post here, let the others
share our interests.
Yeh
USC
From: d88-jwa@hemul.nada.kth.se (Jon Wtte)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Royal Institute of Technology, Stockholm, Sweden
Lines: 21
Nntp-Posting-Host: hemul.nada.kth.se
In <Z2442B4w164w@cellar.org> tsa@cellar.org (The Silent Assassin) writes:
>> I'm building a CAD package and need a 3D graphics library that can handle
>> some rudimentry tasks, such as hidden line removal, shading, animation, etc.
>>
>> Can you please offer some recommendations?
I think APDA has something called MacWireFrame which is a full
wire-frame (and supposedly hidden-line removal) library.
I think it weighs in at $99 (but I've been wrong on an order
of magnitude before)
>Libertarian, atheist, semi-anarchal Techno-Rat.
I can relate to that
/h+
--
-- Jon W{tte, h+@nada.kth.se, Mac Hacker Deluxe --
"On a clear disc, you can seek forever."
From: Peter.vanderveen@visser.el.wau.nl  (Peter van der Veen)
Subject: To yhe one who wants fonts in POV/POLYRAY/VIVID
Lines: 28
Organization: Wageningen Agricultural University
X-Newsreader: FTPNuz (DOS) v1.0
To everyone who wants fonts in Vivid/POV/Polyray.
The Borland BGI font converter is VVFONT18.ZIP.
This program can be found on FTP.INFORMATIK.UNI-OLDENBURG.DE directory
pub/dkbtrace/utils.
Also WUARCHIVE has mirrored this site (directory graphics/graphics/mirrors/
ftp.informatik.uni-oldenburg.de/pub/dkbtrace/utils.
There are more nice utilities present in this directory.
A new version of Polyray 1.6 (for those asked for it) can be found on the
same sites but in the directory INCOMING instead of UTILS (PLY16386).
Also in this directory POVSHELL and PV3DV060 could be found.
Have a nive raytrace time.
Peter
/*---------*\*/*-------------------------------------------*\
*|  ____/|  *|*    PETER.VANDERVEEN@VISSER.EL.WAU.NL       |*
*|  \ o.O|  *|*    Department of Genetics                  |*
*|   =(_)=  *|*    Agricultural University                 |*
*|     U    *|*    Wageningen, The Netherlands             |*
\*---------*/*\*-------------------------------------------*/
Subject: newss
From: pollarda@physc1.byu.edu
Distribution: world
Organization: Brigham Young University
Lines: 24
I am working on a project where we are going to be including
both still and moving grapics within a database.  Of course
JPEG and MPEG come to mind as the formats of choice for the
various files.  However, from what I read on the Net, it seems
as if there are several different forms of each of these.
What I want to do, is settle on a file format which I can count
on as being a standard format 10 years from now.  I know Apple is going
to support Quicktime on the new Power PC's and, so this
may be the format of choice.
What format does Apple's Quicktime use for their products?  I guess
it is some kind of MPEG for their motion picture. Is it any different
than standard MPEG files?
Thanx for any info!
Art.
Pollarda@xray.byu.edu
Nntp-Posting-Host: bones.et.byu.edu
Lines: 6
Subject: PD 3D Viewer wanted
Summary: 3D
Expires: May 20, 1993
Organization: Brigham Young University, Provo UT USA
From: qiaok@bones.et.byu.edu (Kun Qiao)
I am looking for a public domain 3d viewer.  It does not have to be very
fancy.  The features I want is simple wireframe display, flat shading,
simple transformation.  It would be nice to have hidden line.
Any information is appreciated.
From: bryanw@rahul.net (Bryan Woodworth)
Subject: Re: CView answers
Organization: a2i network
Lines: 13
Nntp-Posting-Host: bolero
In <1993Apr17.113223.12092@imag.fr> schaefer@imag.imag.fr (Arno Schaefer) writes:
>Sorry, Bryan, this is not quite correct. Remember the VGALIB package that comes
>with Linux/SLS? It will switch to VGA 320x200x256 mode *without* Xwindows.
>So at least it is *possible* to write a GIF viewer under Linux. However I don't
>think that there exists a similar SVGA package, and viewing GIFs in 320x200 is
>not very nice.
No, VGALIB?  Amazing..  I guess it was lost in all those subdirs :-)
Thanks for correcting me.  It doesn't sound very appealing though, only
320x200?  I'm glad it wasn't something major I missed.
Thanks,
From: schaefer@imag.imag.fr (Arno Schaefer)
Subject: Re: CView answers
Nntp-Posting-Host: silene
Organization: Institut Imag, Grenoble, France
Lines: 32
In article <C5LErr.1J3@rahul.net>, bryanw@rahul.net (Bryan Woodworth) writes:
|> In <1993Apr16.114158.2246@whiting.mcs.com> sean@whiting.mcs.com (Sean Gum) writes:
|>
|> >A stupid question, but what will CView run on and where can I get it? I
|> >am still in need of a GIF viewer for Linux. (Without X-Windows.)
|> >Thanks!
|> >
|>
|> Ho boy. There is no way in HELL you are going to be able to view GIFs or do
|> any other graphics in Linux without X windows!  I love Linux because it is
|> so easy to learn..  You want text?  Okay.   Use Linux. You want text AND
|> graphics?  Use Linux with X windows.  Simple.  Painless.  REQUIRED to have
|> X Windows if you want graphics!  This includes fancy word processors like
|> doc, image viewers like xv, etc.
|>
Sorry, Bryan, this is not quite correct. Remember the VGALIB package that comes
with Linux/SLS? It will switch to VGA 320x200x256 mode *without* Xwindows.
So at least it is *possible* to write a GIF viewer under Linux. However I don't
think that there exists a similar SVGA package, and viewing GIFs in 320x200 is
not very nice.
Best Regards,
Arno
--
--------------------------------------------------------------------------------
Arno Schaefer				ENSIMAG, 2e Annee
Email: schaefer@silene.imag.fr
Tel.: (33) 76 51 79 95			:-)
--------------------------------------------------------------------------------
From: add@sciences.sdsu.edu (James D. Murray)
Subject: Need specs/info on Apple QuickTime
Organization: San Diego State University, College of Sciences
Lines: 12
NNTP-Posting-Host: sciences.sdsu.edu
Keywords: quicktime
X-Newsreader: TIN [version 1.1 PL9]
I need to get the specs, or at least a very verbose interpretation of the
specs, for QuickTime.  Technical articles from magazines and references to
books would be nice too.
I also need the specs in a format usable on a Unix or MS-DOS system.  I can't
do much with the QuickTime stuff they have on ftp.apple.com in its present
format.
Thanks in advance.
James D. Murray
add@sciences.sdsu.edu
From: harti@mikro.ee.tu-berlin.de (Stefan Hartmann (Behse))
Subject: Genoa graphics board Drivers FTP site!
Article-I.D.: mailgzrz.1qpf1r$9ti
Organization: TUBerlin/ZRZ
Lines: 29
NNTP-Posting-Host: mikro.ee.tu-berlin.de
Hi,
well I have opened up a FTP site for getting the latest software drivers
for Genoa graphics cards.
Here is how to access it:
ftp 192.109.42.11
login:ftp
password:ftp
cd pub/genoa
ls -l
binary
prompt
hash
(now if you wanna have the latest drivers for the 7900 board)
cd 7000series
mget *
quit
This is the sequence to get the drivers.
If you have any further question, please email me.
Best regards, Stefan Hartmann
email to: harti@mikro.ee.tu-berlin.de
From: sigma@rahul.net (Kevin Martin)
Subject: Re: CView answers
Keywords: Stupid Programming
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 26
In <C5LEvt.1nJ@rahul.net> bryanw@rahul.net (Bryan Woodworth) writes:
>In <1qlobb$p5a@tuegate.tue.nl> renew@blade.stack.urc.tue.nl (Rene Walter) writes:
>[Most info regarding dangers of reading from Floppy disks omitted]
>>unrevcoverable way.  SO BE CAREFUL!  It is incredibly poor programming for a
>>program to do this...
>Nevertheless, it is an important bug that needs to be squashed.  I am
>merely pointing out that it was probably overlooked.  While it is serious,
>one must keep in mind that it will probably affect at most 5% of the
>targeted users of CView.
OK, I don't use CView anymore, but I saw that no one had explaind this
"bug" in the thread, so here goes:
It is NOT the fault of CView.  It is DOS!  If you leave a file open on a
floppy drive, then change the disk and do something which updates or closes
that file, you have a good chance of getting part of the directory and FAT
from the other disk written to the new disk.  This has always been true,
and has destroyed data under other programs, not just CView.
The only thing CView can do to improve the situation is to try not to leave
files open unless it's actively using them (ie, reading and decoding).
--
Kevin Martin
sigma@rahul.net
"I gotta get me another hat."
From: osprey@ux4.cso.uiuc.edu (Lucas Adamski)
Subject: Fast polygon routine needed
Keywords: polygon, needed
Organization: University of Illinois at Urbana-Champaign
Lines: 6
This may be a fairly routine request on here, but I'm looking for a fast
polygon routine to be used in a 3D game.  I have one that works right now, but
its very slow.  Could anyone point me to one, pref in ASM that is fairly well
documented and flexible?
Thanx,
//Lucas.
From: orourke@sophia.smith.edu (Joseph O'Rourke)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Organization: Smith College, Northampton, MA, US
Lines: 5
In article <C5n3x0.B5L@news.cso.uiuc.edu> osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes:
>This may be a fairly routine request on here, but I'm looking for a fast
>polygon routine to be used in a 3D game.
A fast polygon routine to do WHAT?
From: idr@rigel.cs.pdx.edu (Ian D Romanick)
Subject: Re: Rumours about 3DO ???
Article-I.D.: pdxgate.7272
Organization: Portland State University, Computer Science Dept.
Lines: 20
In article <1993Apr15.164940.11632@mercury.unt.edu> mcmains@unt.edu (Sean McMains) writes:
>
>Wow! A 68070! I'd be very interested to get my hands on one of these,
>especially considering the fact that Motorola has not yet released the
>68060, which is supposedly the next in the 680x0 lineup. 8-D
A 68070 is just a 68010 with a built in MMU.  I don't even think that Moto.
manufactures them.
- Ian Romanick
Dancing Fool of Epsilon
[]--------------------------------------------------------------------[]
| Were the contained thoughts 'opinions',     EPN.NTSC.quality = Best|
| PSU would probably not agree with them.                            |
|                                                                    |
| "Look, I don't know anything about                                 |
| douche, but I do know Anti-Freeze                                  |
| when I see it!" - The Dead Milkmen                                 |
[]--------------------------------------------------------------------[]
From: ccgwt@trentu.ca (Grant Totten)
Subject: MS-Windows graphics viewer?
Keywords: ms windows jpeg gif tiff
Lines: 31
Reply-To: ccgwt@trentu.ca (Grant Totten)
Organization: Trent University
Howdy all,
I was wondering if people could e-mail me their opinions on
the various graphics viewers available for MS-Windows 3.x...  I'm
working on a project to set up our scanner and write documentation on
how to use it and it would be nice to have a snazzy image viewer
to look at (and maybe even edit?) the image you just scanned.
The file formats I'm looking for:
GIF
JPEG
TIFF
PCX
whatever other 'major' file formats there are.
Thanks a lot for your help
Grant
--
Grant Totten, Programmer/Analyst, Trent University, Peterborough Ontario
GTotten@TrentU.CA            Phone: (705) 748-1653   FAX: (705) 748-1246
========================================================================
In the days of old,
When Knights were bold,
And women were too cautious;
Oh, those gallant days,
When women were women,
And men were really obnoxious ...
From: rbarris@orion.oac.uci.edu (Robert C. Barris)
Subject: Re: Rumours about 3DO ???
Nntp-Posting-Host: orion.oac.uci.edu
Summary: 3DO demonstration
Organization: University of California, Irvine
Keywords: 3DO ARM QT Compact Video
Lines: 73
In article <1993Apr16.212441.34125@rchland.ibm.com> ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado) writes:
>In article <1993Apr15.164940.11632@mercury.unt.edu>, Sean McMains <mcmains@unt.edu> writes:
>|> In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
>|> Muchado, ricardo@rchland.vnet.ibm.com writes:
>|> >   And CD-I's CPU doesn't help much either.  I understand it is
>|> >a 68070 (supposedly a variation of a 68000/68010) running at something
>|> >like 7Mhz.  With this speed, you *truly* need sprites.
[snip]
(the 3DO is not a 68000!!!)
>|>
>|> Ricardo, the animation playback to which Lawrence was referring in an
>|> earlier post is plain old Quicktime 1.5 with the Compact Video codec.
>|> I've seen digitized video (some of Apple's early commercials, to be
>|> precise) running on a Centris 650 at about 30fps very nicely (16-bit
>|> color depth). I would expect that using the same algorithm, a RISC
>|> processor should be able to approach full-screen full-motion animation,
>|> though as you've implied, the processor will be taxed more with highly
>|> dynamic material.
[snip]
>booth there.  I walked by, and they were showing real-time video capture
>using a (Radious or SuperMac?) card to digitize and make right on the spot
>quicktime movies.  I think the quicktime they were using was the old one
>(1.5).
>
>   They digitized a guy talking there in 160x2xx something.  It played back quite
>nicely and in real time.  The guy then expanded the window (resized) to 25x by
>3xx (320 in y I think) and the frame rate decreased enough to notice that it
>wasn't 30fps (or about 30fps) anymore.  It dropped to like 15 fps.  Then he
>increased it just a bit more, and it dropped to 10<->12 fps.
>
>   Then I asked him what Mac he was using... He was using a Quadra (don't know
>what model, 900?) to do it, and he was telling the guys there that the Quicktime
>could play back at the same speed even on an LCII.
>
>   Well, I spoiled his claim so to say, since a 68040 Quadra Mac was having
>a little bit of trouble.  And this wasn't even from the hardisk!  This was
>from memory!
>
>   Could it be that you saw either a newer version of quicktime, or some
>hardware assisted Centris, or another software product running the
>animation (like supposedly MacroMind's Accelerator?)?
>
>   Don't misunderstand me, I just want to clarify this.
>
The 3DO box is based on an ARM RISC processor, one or two custom graphics
chips, a DSP, a double-speed CDROM, and 2MB of RAM/VRAM. (I'm a little
fuzzy on the breakdown of the graphics chips and RAM/VRAM capacity).
It was demonstrated at a recent gathering at the Electronic Cafe in
Santa Monica, CA. From 3DO, RJ Mical (of Amiga/Lynx fame) and Hal
Josephson (sp?) were there to talk about the machine and their plan. We
got to see the unit displaying full-screen movies using the CompactVideo codec
(which was nice, very little blockiness showing clips from Jaws and Backdraft)
... and a very high frame rate to boot (like 30fps).
Note however that the 3DO's screen resolution is 320x240.
CompactVideo is pretty amazing... I also wanted to point out that QuickTime
does indeed slow down when one dynamically resizes material as was stated
above... I'm sure if the material had been compressed at the large size
then it would play back fine (I have a Q950 and do this quite a bit). The
price of generality... personally I don't use the dynamic sizing of movies
often, if ever. But playing back stuff at its original size is plenty quick
on the latest 040 machines.
I'm not sure how a Centris/20MHz 040 stacks up against the 25 MHz ARM in
the 3DO box. Obviously the ARM is faster, but how much?
Rob Barris
Quicksilver Software Inc.
rbarris@orion.oac.uci.edu
From: osprey@ux4.cso.uiuc.edu (Lucas Adamski)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Organization: University of Illinois at Urbana-Champaign
Lines: 11
In article <1993Apr17.192947.11230@sophia.smith.edu> orourke@sophia.smith.edu (Joseph O'Rourke) writes:
>In article <C5n3x0.B5L@news.cso.uiuc.edu> osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes:
>>This may be a fairly routine request on here, but I'm looking for a fast
>>polygon routine to be used in a 3D game.
>
>	A fast polygon routine to do WHAT?
To draw polygons of course.  Its a VGA mode 13h (320x200) game, done in C and
ASM.  I need a faster way to draw concave polygons that the method I have right
now, which is very slow.
//Lucas.
From: kennu@mits.mdata.fi (Kenneth Falck)
Subject: Re: CView answers
Organization: Microdata International Telecomm Service
Nntp-Posting-Host: mits.mdata.fi
Lines: 32
In article <C5Mv2n.49t@rahul.net> bryanw@rahul.net (Bryan Woodworth) writes:
>In <1993Apr17.113223.12092@imag.fr> schaefer@imag.imag.fr (Arno Schaefer) writes:
>
>>Sorry, Bryan, this is not quite correct. Remember the VGALIB package that comes
>>with Linux/SLS? It will switch to VGA 320x200x256 mode *without* Xwindows.
>>So at least it is *possible* to write a GIF viewer under Linux. However I don't
>>think that there exists a similar SVGA package, and viewing GIFs in 320x200 is
>>not very nice.
>
>No, VGALIB?  Amazing..  I guess it was lost in all those subdirs :-)
>Thanks for correcting me.  It doesn't sound very appealing though, only
>320x200?  I'm glad it wasn't something major I missed.
Tommy Frandsen's VGAlib (which is probably what you're talking about)
will do the standard VGA modes, some tweaked modes and then the Tseng
ET4000 Super VGA modes. I have an ET4000 and I'm viewing GIF's at
640x480/256 (I have a lousy/small monitor) with dpg-view on Linux. I
think I had to change some constants in the dpg-view sources to make it
use the ET4k modes.
VGAlib's sources seem to be designed for easy addition of new Super VGA
support; each mode is an array of register values and there's a program
that dumps an array declaration of this kind describing the current
mode. Haven't tried it though...
(Btw, my version of VGAlib is 1.2.)
--
kennu@mits.mdata.fi
Try Linux, a free UNIX by Linus Torvalds for 386+'s. Read comp.os.linux
(or ask me by email if you like) for more information. You can run X11,
TeX, GNU EMACS and much more on top of a nice POSIX environment.
From: fineman@stein2.u.washington.edu (Twixt your toes)
Subject: Anyone know use "rayshade" out there?
Organization: University of Washington
Lines: 12
NNTP-Posting-Host: stein2.u.washington.edu
Keywords: rayshade, uw.
I'm using "rayshade" on the u.w. computers here, and i'd like input
from other users, and perhaps swap some ideas.  I could post
uuencoded .gifs here, or .ray code, if anyone's interested.  I'm having
trouble coming up with colors that are metallic (i.e. brass, steel)
from the RGB values.
If you're on the u.w. machines, check out "~fineman/rle.files/*.rle" on
stein.u.washington.edu for some of what i've got.
dan
From: Mike_Peredo@mindlink.bc.ca (Mike Peredo)
Subject: Re: "Fake" virtual reality
Organization: MIND LINK! - British Columbia, Canada
Lines: 11
The most ridiculous example of VR-exploitation I've seen so far is the
"Virtual Reality Clothing Company" which recently opened up in Vancouver. As
far as I can tell it's just another "chic" clothes spot. Although it would be
interesting if they were selling "virtual clothing"....
E-mail me if you want me to dig up their phone # and you can probably get
some promotional lit.
MP
(8^)-
From: craig@toontown.ColumbiaSC.NCR.COM (Craig S. Williamson)
Subject: Video in/out
Reply-To: craig@toontown.ColumbiaSC.NCR.COM (Craig S. Williamson)
Distribution: na
Organization: NCR E&M Columbia, SC
Lines: 14
I'm getting ready to buy a multimedia workstation and would like a little
advice.  I need a graphics card that will do video in and out under windows.
I was originally thinking of a Targa+ but that doesn't work under Windows.
What cards should I be looking into?
Thanks,
Craig
--
"To forgive is divine, to be
-Craig Williamson                              an airhead is human."
Craig.Williamson@ColumbiaSC.NCR.COM                -Balki Bartokomas
craig@toontown.ColumbiaSC.NCR.COM (home)                  Perfect Strangers
From: ccgwt@trentu.ca (Grant Totten)
Subject: MS-Windows screen grabber?
Keywords: windows screen grab document graphics
Lines: 20
Reply-To: ccgwt@trentu.ca (Grant Totten)
Organization: Trent University
Howdy all,
Where could I find a screen-grabber program for MS-Windows?  I'm
writing up some documentation and it would be VERY helpful to include
sample screens into the document.
Please e-mail as I don't usualy follow this group.
Thanks a lot,
Grant
--
Grant Totten, Programmer/Analyst, Trent University, Peterborough Ontario
GTotten@TrentU.CA            Phone: (705) 748-1653   FAX: (705) 748-1246
========================================================================
"The human brain is like an enormous fish -- it is flat and slimy and
has gills through which it can see."
-- Monty Python
From: mjw19@cl.cam.ac.uk (M.J. Williams)
Subject: Re: Rumours about 3DO ???
Keywords: 3DO ARM QT Compact Video
Reply-To: mjw19@cl.cam.ac.uk
Organization: The National Society for the Inversion of Cuddly Tigers
Lines: 32
Nntp-Posting-Host: earith.cl.cam.ac.uk
In article <2BD07605.18974@news.service.uci.edu> rbarris@orion.oac.uci.edu (Robert C. Barris) writes:
>                                                                     We
>got to see the unit displaying full-screen movies using the CompactVideo codec
>(which was nice, very little blockiness showing clips from Jaws and Backdraft)
>... and a very high frame rate to boot (like 30fps).
Acorn Replay running on a 25MHz ARM 3 processor (the ARM 3 is about 20% slower
than the ARM 6) does this in software (off a standard CD-ROM). 16 bit colour at
about the same resolution (so what if the computer only has 8 bit colour
support, real-time dithering too...). The 3D0/O is supposed to have a couple of
DSPs - the ARM being used for housekeeping.
>I'm not sure how a Centris/20MHz 040 stacks up against the 25 MHz ARM in
>the 3DO box. Obviously the ARM is faster, but how much?
A 25MHz ARM 6xx should clock around 20 ARM MIPS, say 18 flat out. Depends
really on the surrounding system and whether you are talking ARM6x or ARM6xx
(the latter has a cache, and so is essential to run at this kind of speed with
slower memory).
I'll stop saying things there 'cos I'll hopefully be working for ARM after
graduation...
Mike
PS Don't pay heed to what reps from Philips say; if the 3D0/O doesn't beat the
pants off 3DI then I'll eat this postscript.
--
____________________________________________________________________________
\  /  / Michael Williams                     Part II Computer Science Tripos
|\/|\/\ MJW19@phx.cam.ac.uk                          University of Cambridge
|  |(__)Cymdeithas Genedlaethol Traddodiad Troi Teigrod Mwythus Ben I Waered
From: edb@dmssyd.syd.dms.CSIRO.AU (Ed Breen)
Subject: DICTA-93
Originator: edb@friend.syd.dms.CSIRO.AU
Keywords: Conference
Reply-To: edb@dmssyd.syd.dms.CSIRO.AU (Ed Breen)
Organization: CSIRO Division of Mathematics and Statistics, Australia
Lines: 163
Australian Pattern Recognition Society
2nd CALL FOR PAPERS
DICTA-93
2nd Conference on -
DIGITAL IMAGING COMPUTING: TECHNIQUES AND APPLICATIONS
Location: Macquarie Theatre
Macquarie University
Sydney
Date: 8-10 December 1993.
DICTA-93 is the second biennial national conference of the
Australian Pattern Recognition Society.
This event will provide an opportunity for any persons with an
interest in computer vision, digital image processing/analysis and other
aspects of pattern recognition to become informed about contemporary
developments in the area, to exchange ideas, to establish contacts and
to share details of their own work with others.
The Following invited speakers will provide specialised
presentations:
Prof Gabor T. Herman, University of Pennsylvania on Medical Imaging.
Prof. R.M. Hodgson, Massey University New Zealand on Computer Vision.
Prof. Dominique Juelin, Centre de Morphologie Mathematique, Paris on
Mathematical Morphology.
Prof. John Richards, Aust. Defence Force Academy, Canberra on Remote
Sensing.
Dr. Phillip K. Robertson, CSIRO Division of Information Technology,
Canberra on Interactive Visualisation.
The conference will concentrate on (but is not limited to) the
following areas of image processing:-
* Computer Vision and Object Recognition
* Motion Analysis
* Morphology
* Medical Imaging
* Fuzzy logic and Neural Networks
* Image Coding
* Machine Vision and Robotics
* Enhancement and Restoration
* Enhancement and Restoration
* Visualisation
* Industrial Applications
* Software and Hardware Tools
Papers are sought for presentation at the conference and publication
in the conference proceedings. Submission for peer review should consist
of an extended abstract of 750-1000 words of doubled spaced text, summarizing the
technical aspects of the paper and any results that will be quoted.
Final papers should be limited to no more than 8 pages of text and
illustrations in camera-ready form.
Four (4) copies of the abstract should be sent to:
DICTA-93
C/- Tony Adriaansen
CSIRO - Division of Wool Technology
PO Box 7
Ryde NSW 2112
Australia
IMPORTANT DATES
Abstract due            - 25th June 1993
Acceptance notified     - 27th August 1993
Final paper due         - 15th October 1993
SOCIAL PROGRAM:
The conference dinner will be held on the Thursday 9th of December 1993.
Other social activities are being arranged.
Situated on a beautiful harbour, Sydney has many and varied places of
interest. The Opera House and Harbour Bridge are just two of the well
known landmarks. Harbour cruises, city tours to the Blue Mountains run
daily. We can provide further information on request.
ACCOMMODATION:
Accommodation within 15 min walking distance is available, ranging from
college style to 5 star Hotel facilities. Information will be supplied
upon request.
CONFERENCE FEES:
before 30th Sep.        After 30th Sep.
APRS Members              A$220                   A$250
APRS Student Members      A$120                   A$150
Others                    A$250                   A$280
Conference Dinner         A$35
on Dec 9th 1993
-------------------------------------------------------------
ADVANCED REGISTRATION
Name:
Organisation:
Address
Phone:
Fax:
email:
- I am a current Member of APRS.
- I am not a current member of APRS.
- Please send me information on accommodation.
I enclose a cheque for
-------------------------------------------------------------
Please send the above form to
DICTA-93
C/- Tony Adriaansen
CSIRO - Division of Wool Technology
PO Box 7
Ryde NSW 2112
Australia
The cheques should be made payable to DICTA-93.
For further information contact:
* Tony Adriaansen (02) 809 9495
* Athula Ginigie  (02) 330 2393
* email: dicta93@ee.uts.edu.au
APRS is a member of IAPP the International Association for Pattern
Recognition, Inc. An affiliated member of the International Federation
for Information Processing.
From: ebuhcb@ebu.ericsson.se (Cuyler Buckwalter 66678)
Subject: Re: So what is the fastest Windows video c
Reply-To: ebuhcb@ebu.ericsson.se
Organization: Ericsson Business Communications, Inc.
Lines: 9
Nntp-Posting-Host: bones.ebu.ericsson.se
X-Disclaimer: This article was posted by a user at Ericsson.
Any opinions expressed are strictly those of the
user and not necessarily those of Ericsson.
In article 16APR199309101156@trentu.ca, ayounes@trentu.ca (Amro Younes, Trent University, C.C. #314, Peterborough, ON, Canada K9J 7B8. (705) 749-0391) writes:
>I have the ATI GRAPHICS ULTRA PRO EISA version.  I must admit it has
>received bad press but that was due to the faulty drivers it had.
PC Magazine seems to be impressed with the ATI card in their most recent
reviews.  In the April 13th issue they rate the ATI Graphics Ultra Pro
(EISA version) as their "Editor's Choice".  They noted that the drivers
had improved since they tested the ISA version in January...
...Cuyler
From: cavalier@blkbox.COM (Bill Egan)
Subject: Re: Weitek P9000 ?
Nntp-Posting-Host: port3.houston.pub-ip.psi.net
Organization: Performance Systems Int'l
Lines: 13
jgreen@amber (Joe Green) writes:
>> > Anyone know about the Weitek P9000 graphics chip?
>Do you have Weitek's address/phone number?  I'd like to get some information
>about this chip.
Yes, I am very interested in this chip.  Please follow up or email.
--
Bill Egan
Cavalier Graphics
Houston, Texas
Email: cavalier@blkbox.com
From: tgl+@cs.cmu.edu (Tom Lane)
Subject: JPEG image compression: Frequently Asked Questions
Summary: Useful info about JPEG (JPG) image files and programs
Keywords: JPEG, image compression, FAQ
Supersedes: <jpeg-faq_733898461@g.gp.cs.cmu.edu>
Nntp-Posting-Host: g.gp.cs.cmu.edu
Reply-To: jpeg-info@uunet.uu.net
Organization: School of Computer Science, Carnegie Mellon
Expires: Sun, 16 May 1993 21:39:30 GMT
Lines: 1027
Archive-name: jpeg-faq
Last-modified: 18 April 1993
This FAQ article discusses JPEG image compression.  Suggestions for
additions and clarifications are welcome.
New since version of 3 April 1993:
* New versions of Image Archiver and PMJPEG for OS/2.
This article includes the following sections:
[1]  What is JPEG?
[2]  Why use JPEG?
[3]  When should I use JPEG, and when should I stick with GIF?
[4]  How well does JPEG compress images?
[5]  What are good "quality" settings for JPEG?
[6]  Where can I get JPEG software?
[6A] "canned" software, viewers, etc.
[6B] source code
[7]  What's all this hoopla about color quantization?
[8]  How does JPEG work?
[9]  What about lossless JPEG?
[10]  Why all the argument about file formats?
[11]  How do I recognize which file format I have, and what do I do about it?
[12]  What about arithmetic coding?
[13]  Does loss accumulate with repeated compression/decompression?
[14]  What are some rules of thumb for converting GIF images to JPEG?
Sections 1-6 are basic info that every JPEG user needs to know;
sections 7-14 are advanced info for the curious.
This article is posted every 2 weeks.  You can always find the latest version
in the news.answers archive at rtfm.mit.edu (18.172.1.27).  By FTP, fetch
/pub/usenet/news.answers/jpeg-faq; or if you don't have FTP, send e-mail to
mail-server@rtfm.mit.edu with body "send usenet/news.answers/jpeg-faq".
Many other FAQ articles are also stored in this archive.  For more
instructions on use of the archive, send e-mail to the same address with the
words "help" and "index" (no quotes) on separate lines.  If you don't get a
reply, the server may be misreading your return address; add a line such as
"path myname@mysite" to specify your correct e-mail address to reply to.
----------
[1]  What is JPEG?
JPEG (pronounced "jay-peg") is a standardized image compression mechanism.
JPEG stands for Joint Photographic Experts Group, the original name of the
committee that wrote the standard.  JPEG is designed for compressing either
full-color or gray-scale digital images of "natural", real-world scenes.
It does not work so well on non-realistic images, such as cartoons or line
drawings.
JPEG does not handle black-and-white (1-bit-per-pixel) images, nor does it
handle motion picture compression.  Standards for compressing those types
of images are being worked on by other committees, named JBIG and MPEG
respectively.
JPEG is "lossy", meaning that the image you get out of decompression isn't
quite identical to what you originally put in.  The algorithm achieves much
of its compression by exploiting known limitations of the human eye, notably
the fact that small color details aren't perceived as well as small details
of light-and-dark.  Thus, JPEG is intended for compressing images that will
be looked at by humans.  If you plan to machine-analyze your images, the
small errors introduced by JPEG may be a problem for you, even if they are
invisible to the eye.
A useful property of JPEG is that the degree of lossiness can be varied by
adjusting compression parameters.  This means that the image maker can trade
off file size against output image quality.  You can make *extremely* small
files if you don't mind poor quality; this is useful for indexing image
archives, making thumbnail views or icons, etc. etc.  Conversely, if you
aren't happy with the output quality at the default compression setting, you
can jack up the quality until you are satisfied, and accept lesser compression.
[2]  Why use JPEG?
There are two good reasons: to make your image files smaller, and to store
24-bit-per-pixel color data instead of 8-bit-per-pixel data.
Making image files smaller is a big win for transmitting files across
networks and for archiving libraries of images.  Being able to compress a
2 Mbyte full-color file down to 100 Kbytes or so makes a big difference in
disk space and transmission time!  (If you are comparing GIF and JPEG, the
size ratio is more like four to one.  More details below.)
If your viewing software doesn't support JPEG directly, you'll have to
convert JPEG to some other format for viewing or manipulating images.  Even
with a JPEG-capable viewer, it takes longer to decode and view a JPEG image
than to view an image of a simpler format (GIF, for instance).  Thus, using
JPEG is essentially a time/space tradeoff: you give up some time in order to
store or transmit an image more cheaply.
It's worth noting that when network or phone transmission is involved, the
time savings from transferring a shorter file can be much greater than the
extra time to decompress the file.  I'll let you do the arithmetic yourself.
The other reason why JPEG will gradually replace GIF as a standard Usenet
posting format is that JPEG can store full color information: 24 bits/pixel
(16 million colors) instead of 8 or less (256 or fewer colors).  If you have
only 8-bit display hardware then this may not seem like much of an advantage
to you.  Within a couple of years, though, 8-bit GIF will look as obsolete as
black-and-white MacPaint format does today.  Furthermore, for reasons detailed
in section 7, JPEG is far more useful than GIF for exchanging images among
people with widely varying color display hardware.  Hence JPEG is considerably
more appropriate than GIF for use as a Usenet posting standard.
[3]  When should I use JPEG, and when should I stick with GIF?
JPEG is *not* going to displace GIF entirely; for some types of images,
GIF is superior in image quality, file size, or both.  One of the first
things to learn about JPEG is which kinds of images to apply it to.
As a rule of thumb, JPEG is superior to GIF for storing full-color or
gray-scale images of "realistic" scenes; that means scanned photographs and
similar material.  JPEG is superior even if you don't have 24-bit display
hardware, and it is a LOT superior if you do.  (See section 7 for details.)
GIF does significantly better on images with only a few distinct colors,
such as cartoons and line drawings.  In particular, large areas of pixels
that are all *exactly* the same color are compressed very efficiently indeed
by GIF.  JPEG can't squeeze these files as much as GIF does without
introducing visible defects.  This sort of image is best kept in GIF form.
(In particular, single-color borders are quite cheap in GIF files, but they
should be avoided in JPEG files.)
JPEG also has a hard time with very sharp edges: a row of pure-black pixels
adjacent to a row of pure-white pixels, for example.  Sharp edges tend to
come out blurred unless you use a very high quality setting.  Again, this
sort of thing is not found in scanned photographs, but it shows up fairly
often in GIF files: borders, overlaid text, etc.  The blurriness is
particularly objectionable with text that's only a few pixels high.
If you have a GIF with a lot of small-size overlaid text, don't JPEG it.
Computer-drawn images (ray-traced scenes, for instance) usually fall between
scanned images and cartoons in terms of complexity.  The more complex and
subtly rendered the image, the more likely that JPEG will do well on it.
The same goes for semi-realistic artwork (fantasy drawings and such).
Plain black-and-white (two level) images should never be converted to JPEG.
You need at least about 16 gray levels before JPEG is useful for gray-scale
images.  It should also be noted that GIF is lossless for gray-scale images
of up to 256 levels, while JPEG is not.
If you have an existing library of GIF images, you may wonder whether you
should convert them to JPEG.  You will lose a little image quality if you do.
(Section 7, which argues that JPEG image quality is superior to GIF, only
applies if both formats start from a full-color original.  If you start from
a GIF, you've already irretrievably lost a great deal of information; JPEG
can only make things worse.)  However, the disk space savings may justify
converting anyway.  This is a decision you'll have to make for yourself.
If you do convert a GIF library to JPEG, see section 14 for hints.  Be
prepared to leave some images in GIF format, since some GIFs will not
convert well.
[4]  How well does JPEG compress images?
Pretty darn well.  Here are some sample file sizes for an image I have
handy, a 727x525 full-color image of a ship in a harbor.  The first three
files are for comparison purposes; the rest were created with the free JPEG
software described in section 6B.
File	   Size in bytes		Comments
ship.ppm	1145040  Original file in PPM format (no compression; 24 bits
or 3 bytes per pixel, plus a few bytes overhead)
ship.ppm.Z	 963829  PPM file passed through Unix compress
compress doesn't accomplish a lot, you'll note.
Other text-oriented compressors give similar results.
ship.gif	 240438  Converted to GIF with ppmquant -fs 256 | ppmtogif
Most of the savings is the result of losing color
info: GIF saves 8 bits/pixel, not 24.  (See sec. 7.)
ship.jpg95	 155622  cjpeg -Q 95    (highest useful quality setting)
This is indistinguishable from the 24-bit original,
at least to my nonprofessional eyeballs.
ship.jpg75	  58009  cjpeg -Q 75    (default setting)
You have to look mighty darn close to distinguish this
from the original, even with both on-screen at once.
ship.jpg50	  38406  cjpeg -Q 50
This has slight defects; if you know what to look
for, you could tell it's been JPEGed without seeing
the original.  Still as good image quality as many
recent postings in Usenet pictures groups.
ship.jpg25	  25192  cjpeg -Q 25
JPEG's characteristic "blockiness" becomes apparent
at this setting (djpeg -blocksmooth helps some).
Still, I've seen plenty of Usenet postings that were
of poorer image quality than this.
ship.jpg5o	   6587  cjpeg -Q 5 -optimize  (-optimize cuts table overhead)
Blocky, but perfectly satisfactory for preview or
indexing purposes.  Note that this file is TINY:
the compression ratio from the original is 173:1 !
In this case JPEG can make a file that's a factor of four or five smaller
than a GIF of comparable quality (the -Q 75 file is every bit as good as the
GIF, better if you have a full-color display).  This seems to be a typical
ratio for real-world scenes.
[5]  What are good "quality" settings for JPEG?
Most JPEG compressors let you pick a file size vs. image quality tradeoff by
selecting a quality setting.  There seems to be widespread confusion about
the meaning of these settings.  "Quality 95" does NOT mean "keep 95% of the
information", as some have claimed.  The quality scale is purely arbitrary;
it's not a percentage of anything.
The name of the game in using JPEG is to pick the lowest quality setting
(smallest file size) that decompresses into an image indistinguishable from
the original.  This setting will vary from one image to another and from one
observer to another, but here are some rules of thumb.
The default quality setting (-Q 75) is very often the best choice.  This
setting is about the lowest you can go without expecting to see defects in a
typical image.  Try -Q 75 first; if you see defects, then go up.  Except for
experimental purposes, never go above -Q 95; saying -Q 100 will produce a
file two or three times as large as -Q 95, but of hardly any better quality.
If the image was less than perfect quality to begin with, you might be able to
go down to -Q 50 without objectionable degradation.  On the other hand, you
might need to go to a HIGHER quality setting to avoid further degradation.
The second case seems to apply much of the time when converting GIFs to JPEG.
The default -Q 75 is about right for compressing 24-bit images, but -Q 85 to
95 is usually better for converting GIFs (see section 14 for more info).
If you want a very small file (say for preview or indexing purposes) and are
prepared to tolerate large defects, a -Q setting in the range of 5 to 10 is
about right.  -Q 2 or so may be amusing as "op art".
(Note: the quality settings discussed in this article apply to the free JPEG
software described in section 6B, and to many programs based on it.  Other
JPEG implementations, such as Image Alchemy, may use a completely different
quality scale.  Some programs don't even provide a numeric scale, just
"high"/"medium"/"low"-style choices.)
[6]  Where can I get JPEG software?
Most of the programs described in this section are available by FTP.
If you don't know how to use FTP, see the FAQ article "How to find sources".
(If you don't have direct access to FTP, read about ftpmail servers in the
same article.)  That article appears regularly in news.answers, or you can
get it by sending e-mail to mail-server@rtfm.mit.edu with
"send usenet/news.answers/finding-sources" in the body.  The "Anonymous FTP
List FAQ" may also be helpful --- it's usenet/news.answers/ftp-list/faq in
the news.answers archive.
NOTE: this list changes constantly.  If you have a copy more than a couple
months old, get the latest JPEG FAQ from the news.answers archive.
[6A]  If you are looking for "canned" software, viewers, etc:
The first part of this list is system-specific programs that only run on one
kind of system.  If you don't see what you want for your machine, check out
the portable JPEG software described at the end of the list.  Note that this
list concentrates on free and shareware programs that you can obtain over
Internet; but some commercial programs are listed too.
X Windows:
John Bradley's free XV (version 2.00 and up) is an excellent viewer for JPEG,
GIF, and other image formats.  It's available for FTP from export.lcs.mit.edu
or ftp.cis.upenn.edu.  The file is called 'xv-???.tar.Z' (where ??? is the
version number, currently 2.21); it is located in the 'contrib' directory on
export or the 'pub/xv' directory at upenn.  XV reduces all images to 8 bits
internally, which means it's not a real good choice if you have a 24-bit
display (you'll still get only 8-bit color).  Also, you shouldn't use XV to
convert full-color images to JPEG, because they'll get color-quantized first.
But XV is a fine tool for converting GIF and other 8-bit images to JPEG.
CAUTION: there is a glitch in versions 2.21 and earlier: be sure to check
the "save at normal size" checkbox when saving a JPEG file, or the file will
be blurry.
Another good choice for X Windows is John Cristy's free ImageMagick package,
also available from export.lcs.mit.edu, file contrib/ImageMagick.tar.Z.
This package handles many image processing and conversion tasks.  The
ImageMagick viewer handles 24-bit displays correctly; for colormapped
displays, it does better (though slower) color quantization than XV or the
basic free JPEG software.
Both of the above are large, complex packages.  If you just want a simple
image viewer, try xloadimage or xli.  xloadimage supports JPEG in its latest
release, 3.03.  xloadimage is free and available from export.lcs.mit.edu,
file contrib/xloadimage.3.03.tar.Z.  xli is a variant version of xloadimage,
said by its fans to be somewhat faster and more robust than the original.
(The current xli is indeed faster and more robust than the current
xloadimage, at least with respect to JPEG files, because it has the IJG v4
decoder while xloadimage 3.03 is using a hacked-over v1.  The next
xloadimage release will fix this.)  xli is also free and available from
export.lcs.mit.edu, file contrib/xli.1.14.tar.Z.  Both programs are said
to do the right thing with 24-bit displays.
MS-DOS:
This covers plain DOS; for Windows or OS/2 programs, see the next headings.
One good choice is Eric Praetzel's free DVPEG, which views JPEG and GIF files.
The current version, 2.4a, is available by FTP from sunee.uwaterloo.ca
(129.97.50.50), file pub/jpeg/viewers/dvpeg24a.zip.  This is a good basic
viewer that works on either 286 or 386/486 machines.  The user interface is
not flashy, but it's functional.
Another freeware JPEG/GIF/TGA viewer is Mohammad Rezaei's Hiview.  The
current version, 1.2, is available from Simtel20 and mirror sites (see NOTE
below), file msdos/graphics/hv12.zip.  Hiview requires a 386 or better CPU
and a VCPI-compatible memory manager (QEMM386 and 386MAX work; Windows and
OS/2 do not).  Hiview is currently the fastest viewer for images that are no
bigger than your screen.  For larger images, it scales the image down to fit
on the screen (rather than using panning/scrolling as most viewers do).
You may or may not prefer this approach, but there's no denying that it
slows down loading of large images considerably.  Note: installation is a
bit tricky; read the directions carefully!
A shareware alternative is ColorView for DOS ($30).  This is easier to
install than either of the two freeware alternatives.  Its user interface is
also much spiffier-looking, although personally I find it harder to use ---
more keystrokes, inconsistent behavior.  It is faster than DVPEG but a
little slower than Hiview, at least on my hardware.  (For images larger than
screen size, DVPEG and ColorView seem to be about the same speed, and both
are faster than Hiview.)  The current version is 2.1, available from
Simtel20 and mirror sites (see NOTE below), file msdos/graphics/dcview21.zip.
Requires a VESA graphics driver; if you don't have one, look in vesadrv2.zip
or vesa-tsr.zip from the same directory.  (Many recent PCs have a built-in
VESA driver, so don't try to load a VESA driver unless ColorView complains
that the driver is missing.)
A second shareware alternative is Fullview, which has been kicking around
the net for a while, but I don't know any stable archive location for it.
The current (rather old) version is inferior to the above viewers anyway.
The author tells me that a new version of Fullview will be out shortly
and it will be submitted to the Simtel20 archives at that time.
The well-known GIF viewer CompuShow (CSHOW) supports JPEG in its latest
revision, 8.60a.  However, CSHOW's JPEG implementation isn't very good:
it's slow (about half the speed of the above viewers) and image quality is
poor except on hi-color displays.  Too bad ... it'd have been nice to see a
good JPEG capability in CSHOW.  Shareware, $25.  Available from Simtel20 and
mirror sites (see NOTE below), file msdos/gif/cshw860a.zip.
Due to the remarkable variety of PC graphics hardware, any one of these
viewers might not work on your particular machine.  If you can't get *any*
of them to work, you'll need to use one of the following conversion programs
to convert JPEG to GIF, then view with your favorite GIF viewer.  (If you
have hi-color hardware, don't use GIF as the intermediate format; try to
find a TARGA-capable viewer instead.  VPIC5.0 is reputed to do the right
thing with hi-color displays.)
The Independent JPEG Group's free JPEG converters are FTPable from Simtel20
and mirror sites (see NOTE below), file msdos/graphics/jpeg4.zip (or
jpeg4386.zip if you have a 386 and extended memory).  These files are DOS
compilations of the free source code described in section 6B; they will
convert JPEG to and from GIF, Targa, and PPM formats.
Handmade Software offers free JPEG<=>GIF conversion tools, GIF2JPG/JPG2GIF.
These are slow and are limited to conversion to and from GIF format; in
particular, you can't get 24-bit color output from a JPEG.  The major
advantage of these tools is that they will read and write HSI's proprietary
JPEG format as well as the Usenet-standard JFIF format.  Since HSI-format
files are rather widespread on BBSes, this is a useful capability.  Version
2.0 of these tools is free (prior versions were shareware).  Get it from
Simtel20 and mirror sites (see NOTE below), file msdos/graphics/gif2jpg2.zip.
NOTE: do not use HSI format for files to be posted on Internet, since it is
not readable on non-PC platforms.
Handmade Software also has a shareware image conversion and manipulation
package, Image Alchemy.  This will translate JPEG files (both JFIF and HSI
formats) to and from many other image formats.  It can also display images.
A demo version of Image Alchemy version 1.6.1 is available from Simtel20 and
mirror sites (see NOTE below), file msdos/graphics/alch161.zip.
NOTE ABOUT SIMTEL20: The Internet's key archive site for PC-related programs
is Simtel20, full name wsmr-simtel20.army.mil (192.88.110.20).  Simtel20
runs a non-Unix system with weird directory names; where this document
refers to directory (eg) "msdos/graphics" at Simtel20, that really means
"pd1:<msdos.graphics>".  If you are not physically on MILnet, you should
expect rather slow FTP transfer rates from Simtel20.  There are several
Internet sites that maintain copies (mirrors) of the Simtel20 archives;
most FTP users should go to one of the mirror sites instead.  A popular USA
mirror site is oak.oakland.edu (141.210.10.117), which keeps Simtel20 files
in (eg) "/pub/msdos/graphics".  If you have no FTP capability, you can
retrieve files from Simtel20 by e-mail; see informational postings in
comp.archives.msdos.announce to find out how.  If you are outside the USA,
consult the same newsgroup to learn where your nearest Simtel20 mirror is.
Microsoft Windows:
There are several Windows programs capable of displaying JPEG images.
(Windows viewers are generally slower than DOS viewers on the same hardware,
due to Windows' system overhead.  Note that you can run the DOS conversion
programs described above inside a Windows DOS window.)
The newest entry is WinECJ, which is free and EXTREMELY fast.  Version 1.0
is available from ftp.rahul.net, file /pub/bryanw/pc/jpeg/wecj.zip.
Requires Windows 3.1 and 256-or-more-colors mode.  This is a no-frills
viewer with the bad habit of hogging the machine completely while it
decodes; and the image quality is noticeably worse than other viewers.
But it's so fast you'll use it anyway, at least for previewing...
JView is freeware, fairly fast, has good on-line help, and can write out the
decompressed image in Windows BMP format; but it can't create new JPEG
files, and it doesn't view GIFs.  JView also lacks some other useful
features of the shareware viewers (such as brightness adjustment), but it's
an excellent basic viewer.  The current version, 0.9, is available from
ftp.cica.indiana.edu (129.79.20.84), file pub/pc/win3/desktop/jview090.zip.
(Mirrors of this archive can be found at some other Internet sites,
including wuarchive.wustl.edu.)
WinJPEG (shareware, $20) displays JPEG,GIF,Targa,TIFF, and BMP image files;
it can write all of these formats too, so it can be used as a converter.
It has some other nifty features including color-balance adjustment and
slideshow.  The current version is 2.1, available from Simtel20 and mirror
sites (see NOTE above), file msdos/windows3/winjp210.zip.  (This is a slow
286-compatible version; if you register, you'll get the 386-only version,
which is roughly 25% faster.)
ColorView is another shareware entry ($30).  This was an early and promising
contender, but it has not been updated in some time, and at this point it
has no real advantages over WinJPEG.  If you want to try it anyway, the
current version is 0.97, available from ftp.cica.indiana.edu, file
pub/pc/win3/desktop/cview097.zip.  (I understand that a new version will
be appearing once the authors are finished with ColorView for DOS.)
DVPEG (see DOS heading) also works under Windows, but only in full-screen
mode, not in a window.
OS/2:
The following files are available from hobbes.nmsu.edu (128.123.35.151).
Note: check /pub/uploads for more recent versions --- the hobbes moderator
is not very fast about moving uploads into their permanent directories.
/pub/os2/2.x/graphics/jpegv4.zip
32-bit version of free IJG conversion programs, version 4.
/pub/os2/all/graphics/jpeg4-16.zip
16-bit version of same, for OS/2 1.x.
/pub/os2/2.x/graphics/imgarc11.zip
Image Archiver 1.01: image conversion/viewing with PM graphical interface.
Strong on conversion functions, viewing is a bit weaker.  Shareware, $15.
/pub/os2/2.x/graphics/pmjpeg11.zip
PMJPEG 1.1: OS/2 2.x port of WinJPEG, a popular viewer for Windows
(see description in Windows section).  Shareware, $20.
/pub/os2/2.x/graphics/pmview84.zip
PMView 0.84: JPEG/GIF/BMP viewer.  GIF viewing very fast, JPEG viewing
fast if you have huge amounts of RAM, otherwise about the same speed
as the above programs.  Strong 24-bit display support.  Shareware, $20.
Macintosh:
Most Mac JPEG programs rely on Apple's JPEG implementation, which is part of
the QuickTime system extension; so you need to have QuickTime installed.
To use QuickTime, you need a 68020 or better CPU and you need to be running
System 6.0.7 or later.  (If you're running System 6, you must also install
the 32-bit QuickDraw extension; this is built-in on System 7.)  You can get
QuickTime by FTP from ftp.apple.com, file dts/mac/quicktime/quicktime.hqx.
(As of 11/92, this file contains QuickTime 1.5, which is better than QT 1.0
in several ways.  With respect to JPEG, it is marginally faster and
considerably less prone to crash when fed a corrupt JPEG file.  However,
some applications seem to have compatibility problems with QT 1.5.)
Mac users should keep in mind that QuickTime's JPEG format, PICT/JPEG, is
not the same as the Usenet-standard JFIF JPEG format.  (See section 10 for
details.)  If you post images on Usenet, make sure they are in JFIF format.
Most of the programs mentioned below can generate either format.
The first choice is probably JPEGView, a free program for viewing images
that are in JFIF format, PICT/JPEG format, or GIF format.  It also can
convert between the two JPEG formats.  The current version, 2.0, is a big
improvement over prior versions.  Get it from sumex-aim.stanford.edu
(36.44.0.6), file /info-mac/app/jpeg-view-20.hqx.  Requires System 7 and
QuickTime.  On 8-bit displays, JPEGView usually produces the best color
image quality of all the currently available Mac JPEG viewers.  JPEGView can
view large images in much less memory than other Mac viewers; in fact, it's
the only one that can deal with JPEG images much over 640x480 pixels on a
typical 4MB Mac.  Given a large image, JPEGView automatically scales it down
to fit on the screen, rather than presenting scroll bars like most other
viewers.  (You can zoom in on any desired portion, though.)  Some people
like this behavior, some don't.  Overall, JPEGView's user interface is very
well thought out.
GIFConverter, a shareware ($40) image viewer/converter, supports JFIF and
PICT/JPEG, as well as GIF and several other image formats.  The latest
version is 2.3.2.  Get it from sumex-aim.stanford.edu, file
/info-mac/art/gif/gif-converter-232.hqx.  Requires System 6.0.5 or later.
GIFConverter is not better than JPEGView as a plain JPEG/GIF viewer, but
it has much more extensive image manipulation and format conversion
capabilities, so you may find it worth its shareware fee if you do a lot of
playing around with images.  Also, the newest version of GIFConverter can
load and save JFIF images *without* QuickTime, so it is your best bet if
your machine is too old to run QuickTime.  (But it's faster with QuickTime.)
Note: If GIFConverter runs out of memory trying to load a large JPEG, try
converting the file to GIF with JPEG Convert, then viewing the GIF version.
JPEG Convert, a Mac version of the free IJG JPEG conversion utilities, is
available from sumex-aim.stanford.edu, file /info-mac/app/jpeg-convert-10.hqx.
This will run on any Mac, but it only does file conversion, not viewing.
You can use it in conjunction with any GIF viewer.
Previous versions of this FAQ recommended Imagery JPEG v0.6, a JPEG<=>GIF
converter based on an old version of the IJG code.  If you are using this
program, you definitely should replace it with JPEG Convert.
Apple's free program PictPixie can view images in JFIF, QuickTime JPEG, and
GIF format, and can convert between these formats.  You can get PictPixie
from ftp.apple.com, file dts/mac/quicktime/qt.1.0.stuff/pictpixie.hqx.
Requires QuickTime.  PictPixie was intended as a developer's tool, and it's
really not the best choice unless you like to fool around with QuickTime.
Some of its drawbacks are that it requires lots of memory, it produces
relatively poor color image quality on anything less than a 24-bit display,
and it has a relatively unfriendly user interface.  Worse, PictPixie is an
unsupported program, meaning it has some minor bugs that Apple does not
intend to fix.  (There is an old version of PictPixie, called
PICTCompressor, floating around the net.  If you have this you should trash
it, as it's even buggier.  Also, the QuickTime Starter Kit includes a much
cleaned-up descendant of PictPixie called Picture Compressor.  Note that
Picture Compressor is NOT free and may not be distributed on the net.)
Storm Technology's Picture Decompress is a free JPEG viewer/converter.
This rather old program is inferior to the above programs in many ways, but
it will run without System 7 or QuickTime, so you may be forced to use it on
older systems.  (It does need 32-bit QuickDraw, so really old machines can't
use it.)  You can get it from sumex-aim.stanford.edu, file
/info-mac/app/picture-decompress-201.hqx.  You must set the file type of a
downloaded image file to 'JPEG' to allow Picture Decompress to open it.
If your machine is too old to run 32-bit QuickDraw (a Mac Plus for instance),
GIFConverter is your only choice for single-program JPEG viewing.  If you
don't want to pay for GIFConverter, use JPEG Convert and a free GIF viewer.
More and more commercial Mac applications are supporting JPEG, although not
all can deal with the Usenet-standard JFIF format.  Adobe Photoshop, version
2.0.1 or later, can read and write JFIF-format JPEG files (use the JPEG
plug-in from the Acquire menu).  You must set the file type of a downloaded
JPEG file to 'JPEG' to allow Photoshop to recognize it.
Amiga:
(Most programs listed in this section are stored in the AmiNet archive at
amiga.physik.unizh.ch (130.60.80.80).  There are many mirror sites of this
archive and you should try to use the closest one.  In the USA, a good
choice is wuarchive.wustl.edu; look under /mirrors/amiga.physik.unizh.ch/...)
HamLab Plus is an excellent JPEG viewer/converter, as well as being a
general image manipulation tool.  It's cheap (shareware, $20) and can read
several formats besides JPEG.  The current version is 2.0.8.  A demo version
is available from amiga.physik.unizh.ch (and mirror sites), file
amiga/gfx/edit/hamlab208d.lha.  The demo version will crop images larger
than 512x512, but it is otherwise fully functional.
Rend24 (shareware, $30) is an image renderer that can display JPEG, ILBM,
and GIF images.  The program can be used to create animations, even
capturing frames on-the-fly from rendering packages like Lightwave.  The
current version is 1.05, available from amiga.physik.unizh.ch (and mirror
sites), file amiga/os30/gfx/rend105.lha.  (Note: although this directory is
supposedly for AmigaDOS 3.0 programs, the program will also run under
AmigaDOS 1.3, 2.04 or 2.1.)
Viewtek is a free JPEG/ILBM/GIF/ANIM viewer.  The current version is 1.04,
available from amiga.physik.unizh.ch (and mirror sites), file
amiga/gfx/show/ViewTek104.lha.
If you're willing to spend real money, there are several commercial packages
that support JPEG.  Two are written by Thomas Krehbiel, the author of Rend24
and Viewtek.  These are CineMorph, a standalone image morphing package, and
ImageFX, an impressive 24-bit image capture, conversion, editing, painting,
effects and prepress package that also includes CineMorph.  Both are
distributed by Great Valley Products.  Art Department Professional (ADPro),
from ASDG Inc, is the most widely used commercial image manipulation
software for Amigas.  ImageMaster, from Black Belt Systems, is another
well-regarded commercial graphics package with JPEG support.
The free IJG JPEG software is available compiled for Amigas from
amiga.physik.unizh.ch (and mirror sites) in directory amiga/gfx/conv, file
AmigaJPEGV4.lha.  These programs convert JPEG to/from PPM,GIF,Targa formats.
The Amiga world is heavily infested with quick-and-dirty JPEG programs, many
based on an ancient beta-test version of the free IJG JPEG software (thanks
to a certain magazine that published same on its disk-of-the-month, without
so much as notifying the authors).  Among these are "AugJPEG", "NewAmyJPEG",
"VJPEG", and probably others I have not even heard of.  In my opinion,
anything older than IJG version 3 (March 1992) is not worth the disk space
it's stored on; if you have such a program, trash it and get something newer.
Atari ST:
The free IJG JPEG software is available compiled for Atari ST, TT, etc,
from atari.archive.umich.edu, file /atari/Graphics/jpeg4bin.zoo.
These programs convert JPEG to/from PPM, GIF, Targa formats.
I have not heard of any free or shareware JPEG-capable viewer for Ataris,
but surely there must be one by now?  Pointers appreciated.
Acorn Archimedes:
!ChangeFSI, supplied with RISC OS 3 version 3.10, can convert from and view
JPEG JFIF format.  Provision is also made to convert images to JPEG,
although this must be done from the CLI rather than by double-clicking.
Recent versions (since 7.11) of the shareware program Translator can handle
JPEG, along with about 30 other image formats.  While older versions can be
found on some Archimedes bboards, the current version is only available by
registering with the author, John Kortink, Nutterbrink 31, 7544 WJ, Enschede,
The Netherlands.  Price 35 Dutch guilders (about $22 or 10 pounds).
There's also a commercial product called !JPEG which provides JPEG read/write
functionality and direct JPEG viewing, as well as a host of other image
format conversion and processing options.  This is more expensive but not
necessarily better than the above programs.  Contact: DT Software, FREEPOST,
Cambridge, UK.  Tel: 0223 841099.
Portable software for almost any system:
If none of the above fits your situation, you can obtain and compile the free
JPEG conversion software described in 6B.  You'll also need a viewer program.
If your display is 8 bits or less, any GIF viewer will do fine; if you have a
display with more color capability, try to find a viewer that can read Targa
or PPM 24-bit image files.
There are numerous commercial JPEG offerings, with more popping up every
day.  I recommend that you not spend money on one of these unless you find
the available free or shareware software vastly too slow.  In that case,
purchase a hardware-assisted product.  Ask pointed questions about whether
the product complies with the final JPEG standard and about whether it can
handle the JFIF file format; many of the earliest commercial releases are
not and never will be compatible with anyone else's files.
[6B]  If you are looking for source code to work with:
Free, portable C code for JPEG compression is available from the Independent
JPEG Group, which I lead.  A package containing our source code,
documentation, and some small test files is available from several places.
The "official" archive site for this source code is ftp.uu.net (137.39.1.9
or 192.48.96.9).  Look under directory /graphics/jpeg; the current release
is jpegsrc.v4.tar.Z.  (This is a compressed TAR file; don't forget to
retrieve in binary mode.)  You can retrieve this file by FTP or UUCP.
If you are on a PC and don't know how to cope with .tar.Z format, you may
prefer ZIP format, which you can find at Simtel20 and mirror sites (see NOTE
above), file msdos/graphics/jpegsrc4.zip.  This file will also be available on
CompuServe, in the GRAPHSUPPORT forum (GO PICS), library 15, as jpsrc4.zip.
If you have no FTP access, you can retrieve the source from your nearest
comp.sources.misc archive; version 4 appeared as issues 55-72 of volume 34.
(If you don't know how to retrieve comp.sources.misc postings, see the FAQ
article "How to find sources", referred to at the top of section 6.)
The free JPEG code provides conversion between JPEG "JFIF" format and image
files in GIF, PBMPLUS PPM/PGM, Utah RLE, and Truevision Targa file formats.
The core compression and decompression modules can easily be reused in other
programs, such as image viewers.  The package is highly portable; we have
tested it on many machines ranging from PCs to Crays.
We have released this software for both noncommercial and commercial use.
Companies are welcome to use it as the basis for JPEG-related products.
We do not ask a royalty, although we do ask for an acknowledgement in
product literature (see the README file in the distribution for details).
We hope to make this software industrial-quality --- although, as with
anything that's free, we offer no warranty and accept no liability.
The Independent JPEG Group is a volunteer organization; if you'd like to
contribute to improving our software, you are welcome to join.
[7]  What's all this hoopla about color quantization?
Most people don't have full-color (24 bit per pixel) display hardware.
Typical display hardware stores 8 or fewer bits per pixel, so it can display
256 or fewer distinct colors at a time.  To display a full-color image, the
computer must map the image into an appropriate set of representative
colors.  This process is called "color quantization".  (This is something
of a misnomer, "color selection" would be a better term.  We're stuck with
the standard usage though.)
Clearly, color quantization is a lossy process.  It turns out that for most
images, the details of the color quantization algorithm have MUCH more impact
on the final image quality than do any errors introduced by JPEG (except at
the very lowest JPEG quality settings).
Since JPEG is a full-color format, converting a color JPEG image for display
on 8-bit-or-less hardware requires color quantization.  This is true for
*all* color JPEGs: even if you feed a 256-or-less-color GIF into JPEG, what
comes out of the decompressor is *not* 256 colors, but thousands of colors.
This happens because JPEG's lossiness affects each pixel a little
differently, so two pixels that started with identical colors will probably
come out with slightly different colors.  Each original color gets "smeared"
into a group of nearby colors.  Therefore quantization is always required to
display a color JPEG on a colormapped display, regardless of the image
source.  The only way to avoid quantization is to ask for gray-scale output.
(Incidentally, because of this effect it's nearly meaningless to talk about
the number of colors used by a JPEG image.  Even if you attempted to count
the number of distinct pixel values, different JPEG decoders would give you
different results because of roundoff error differences.  I occasionally see
posted images described as "256-color JPEG".  This tells me that the poster
(a) hasn't read this FAQ and (b) probably converted the JPEG from a GIF.
JPEGs can be classified as color or gray-scale (just like photographs), but
number of colors just isn't a useful concept for JPEG.)
On the other hand, a GIF image by definition has already been quantized to
256 or fewer colors.  (A GIF *does* have a definite number of colors in its
palette, and the format doesn't allow more than 256 palette entries.)
For purposes of Usenet picture distribution, GIF has the advantage that the
sender precomputes the color quantization, so recipients don't have to.
This is also the *disadvantage* of GIF: you're stuck with the sender's
quantization.  If the sender quantized to a different number of colors than
what you can display, you have to re-quantize, resulting in much poorer
image quality than if you had quantized once from a full-color image.
Furthermore, if the sender didn't use a high-quality color quantization
algorithm, you're out of luck.
For this reason, JPEG offers the promise of significantly better image quality
for all users whose machines don't match the sender's display hardware.
JPEG's full color image can be quantized to precisely match the user's display
hardware.  Furthermore, you will be able to take advantage of future
improvements in quantization algorithms (there is a lot of active research in
this area), or purchase better display hardware, to get a better view of JPEG
images you already have.  With a GIF, you're stuck forevermore with what was
sent.
It's also worth mentioning that many GIF-viewing programs include rather
shoddy quantization routines.  If you view a 256-color GIF on a 16-color EGA
display, for example, you are probably getting a much worse image than you
need to.  This is partly an inevitable consequence of doing two color
quantizations (one to create the GIF, one to display it), but often it's
also due to sloppiness.  JPEG conversion programs will be forced to use
high quality quantizers in order to get acceptable results at all, and in
normal use they will quantize directly to the number of colors to be
displayed.  Thus, JPEG is likely to provide better results than the average
GIF program for low-color-resolution displays as well as high-resolution ones!
Finally, an ever-growing number of people have better-than-8-bit display
hardware already: 15-bit "hi-color" PC displays, true 24-bit displays on
workstations and Macintoshes, etc.  For these people, GIF is already
obsolete, as it cannot represent an image to the full capabilities of their
display.  JPEG images can drive these displays much more effectively.
Thus, JPEG is an all-around better choice than GIF for representing images
in a machine-independent fashion.
[8]  How does JPEG work?
The buzz-words to know are chrominance subsampling, discrete cosine
transforms, coefficient quantization, and Huffman or arithmetic entropy
coding.  This article's long enough already, so I'm not going to say more
than that here.  For technical information, see the comp.compression FAQ.
This is available from the news.answers archive at rtfm.mit.edu, in files
/pub/usenet/news.answers/compression-faq/part[1-3].  If you need help in
using the news.answers archive, see the top of this article.
[9]  What about lossless JPEG?
There's a great deal of confusion on this subject.  The JPEG committee did
define a truly lossless compression algorithm, i.e., one that guarantees the
final output is bit-for-bit identical to the original input.  However, this
lossless mode has almost nothing in common with the regular, lossy JPEG
algorithm, and it offers much less compression.  At present, very few
implementations of lossless JPEG exist, and all of them are commercial.
Saying "-Q 100" to the free JPEG software DOES NOT get you a lossless image.
What it does get rid of is deliberate information loss in the coefficient
quantization step.  There is still a good deal of information loss in the
color subsampling step.  (With the V4 free JPEG code, you can also say
"-sample 1x1" to turn off subsampling.  Keep in mind that many commercial
JPEG implementations cannot cope with the resulting file.)
Even with both quantization and subsampling turned off, the regular JPEG
algorithm is not lossless, because it is subject to roundoff errors in
various calculations.  The maximum error is a few counts in any one pixel
value; it's highly unlikely that this could be perceived by the human eye,
but it might be a concern if you are doing machine processing of an image.
At this minimum-loss setting, regular JPEG produces files that are perhaps
half the size of an uncompressed 24-bit-per-pixel image.  True lossless JPEG
provides roughly the same amount of compression, but it guarantees
bit-for-bit accuracy.
If you have an application requiring lossless storage of images with less
than 6 bits per pixel (per color component), you may want to look into the
JBIG bilevel image compression standard.  This performs better than JPEG
lossless on such images.  JPEG lossless is superior to JBIG on images with
6 or more bits per pixel; furthermore, JPEG is public domain (at least with a
Huffman back end), while the JBIG techniques are heavily covered by patents.
[10]  Why all the argument about file formats?
Strictly speaking, JPEG refers only to a family of compression algorithms;
it does *not* refer to a specific image file format.  The JPEG committee was
prevented from defining a file format by turf wars within the international
standards organizations.
Since we can't actually exchange images with anyone else unless we agree on
a common file format, this leaves us with a problem.  In the absence of
official standards, a number of JPEG program writers have just gone off to
"do their own thing", and as a result their programs aren't compatible with
anybody else's.
The closest thing we have to a de-facto standard JPEG format is some work
that's been coordinated by people at C-Cube Microsystems.  They have defined
two JPEG-based file formats:
* JFIF (JPEG File Interchange Format), a "low-end" format that transports
pixels and not much else.
* TIFF/JPEG, aka TIFF 6.0, an extension of the Aldus TIFF format.  TIFF is
a "high-end" format that will let you record just about everything you
ever wanted to know about an image, and a lot more besides :-).  TIFF is
a lot more complex than JFIF, and may well prove less transportable,
because different vendors have historically implemented slightly different
and incompatible subsets of TIFF.  It's not likely that adding JPEG to the
mix will do anything to improve this situation.
Both of these formats were developed with input from all the major vendors
of JPEG-related products; it's reasonably likely that future commercial
products will adhere to one or both standards.
I believe that Usenet should adopt JFIF as the replacement for GIF in
picture postings.  JFIF is simpler than TIFF and is available now; the
TIFF 6.0 spec has only recently been officially adopted, and it is still
unusably vague on some crucial details.  Even when TIFF/JPEG is well
defined, the JFIF format is likely to be a widely supported "lowest common
denominator"; TIFF/JPEG files may never be as transportable.
A particular case that people may be interested in is Apple's QuickTime
software for the Macintosh.  QuickTime uses a JFIF-compatible format wrapped
inside the Mac-specific PICT structure.  Conversion between JFIF and
QuickTime JPEG is pretty straightforward, and several Mac programs are
available to do it (see Mac portion of section 6A).  If you have an editor
that handles binary files, you can strip a QuickTime JPEG PICT down to JFIF
by hand; see section 11 for details.
Another particular case is Handmade Software's programs (GIF2JPG/JPG2GIF and
Image Alchemy).  These programs are capable of reading and writing JFIF
format.  By default, though, they write a proprietary format developed by
HSI.  This format is NOT readable by any non-HSI programs and should not be
used for Usenet postings.  Use the -j switch to get JFIF output.  (This
applies to old versions of these programs; the current releases emit JFIF
format by default.  You still should be careful not to post HSI-format
files, unless you want to get flamed by people on non-PC platforms.)
[11]  How do I recognize which file format I have, and what do I do about it?
If you have an alleged JPEG file that your software won't read, it's likely
to be HSI format or some other proprietary JPEG-based format.  You can tell
what you have by inspecting the first few bytes of the file:
1.  A JFIF-standard file will start with the characters (hex) FF D8 FF E0,
followed by two variable bytes (often hex 00 10), followed by 'JFIF'.
2.  If you see FF D8 at the start, but not the rest of it, you may have a
"raw JPEG" file.  This is probably decodable as-is by JFIF software ---
it's worth a try, anyway.
3.  HSI files start with 'hsi1'.  You're out of luck unless you have HSI
software.  Portions of the file may look like plain JPEG data, but they
won't decompress properly with non-HSI programs.
4.  A Macintosh PICT file, if JPEG-compressed, will have a couple hundred
bytes of header followed by a JFIF header (scan for 'JFIF').  Strip off
everything before the FF D8 and you should be able to read it.
5.  Anything else: it's a proprietary format, or not JPEG at all.  If you are
lucky, the file may consist of a header and a raw JPEG data stream.
If you can identify the start of the JPEG data stream (look for FF D8),
try stripping off everything before that.
In uuencoded Usenet postings, the characteristic JFIF pattern is
"begin" line
M_]C_X ...
whereas uuencoded HSI files will start with
"begin" line
M:'-I ...
If you learn to check for the former, you can save yourself the trouble of
downloading non-JFIF files.
[12]  What about arithmetic coding?
The JPEG spec defines two different "back end" modules for the final output
of compressed data: either Huffman coding or arithmetic coding is allowed.
The choice has no impact on image quality, but arithmetic coding usually
produces a smaller compressed file.  On typical images, arithmetic coding
produces a file 5 or 10 percent smaller than Huffman coding.  (All the
file-size numbers previously cited are for Huffman coding.)
Unfortunately, the particular variant of arithmetic coding specified by the
JPEG standard is subject to patents owned by IBM, AT&T, and Mitsubishi.
Thus *you cannot legally use arithmetic coding* unless you obtain licenses
from these companies.  (The "fair use" doctrine allows people to implement
and test the algorithm, but actually storing any images with it is dubious
at best.)
At least in the short run, I recommend that people not worry about
arithmetic coding; the space savings isn't great enough to justify the
potential legal hassles.  In particular, arithmetic coding *should not*
be used for any images to be exchanged on Usenet.
There is some small chance that the legal situation may change in the
future.  Stay tuned for further details.
[13]  Does loss accumulate with repeated compression/decompression?
It would be nice if, having compressed an image with JPEG, you could
decompress it, manipulate it (crop off a border, say), and recompress it
without any further image degradation beyond what you lost initially.
Unfortunately THIS IS NOT THE CASE.  In general, recompressing an altered
image loses more information, though usually not as much as was lost the
first time around.
The next best thing would be that if you decompress an image and recompress
it *without changing it* then there is no further loss, i.e., you get an
identical JPEG file.  Even this is not true; at least, not with the current
free JPEG software.  It's essentially a problem of accumulation of roundoff
error.  If you repeatedly compress and decompress, the image will eventually
degrade to where you can see visible changes from the first-generation
output.  (It usually takes many such cycles to get visible change.)
One of the things on our to-do list is to see if accumulation of error can
be avoided or limited, but I am not optimistic about it.
In any case, the most that could possibly be guaranteed would be that
compressing the unmodified full-color output of djpeg, at the original
quality setting, would introduce no further loss.  Even such simple changes
as cropping off a border could cause further roundoff-error degradation.
(If you're wondering why, it's because the pixel-block boundaries move.
If you cropped off only multiples of 16 pixels, you might be safe, but
that's a mighty limited capability!)
The bottom line is that JPEG is a useful format for archival storage and
transmission of images, but you don't want to use it as an intermediate
format for sequences of image manipulation steps.  Use a lossless format
(PPM, RLE, TIFF, etc) while working on the image, then JPEG it when you are
ready to file it away.  Aside from avoiding degradation, you will save a lot
of compression/decompression time this way :-).
[14]  What are some rules of thumb for converting GIF images to JPEG?
As stated earlier, you *will* lose some amount of image information if you
convert an existing GIF image to JPEG.  If you can obtain the original
full-color data the GIF was made from, it's far better to make a JPEG from
that.  But if you need to save space and have only the GIF to work from,
here are some suggestions for getting maximum space savings with minimum
loss of quality.
The first rule when converting a GIF library is to look at each JPEG, to
make sure you are happy with it, before throwing away the corresponding GIF;
that will give you a chance to re-do the conversion with a higher quality
setting if necessary.  Some GIFs may be better left as GIFs, as explained in
section 3; in particular, cartoon-type GIFs with sixteen or fewer colors
don't convert well.  You may find that a JPEG file of reasonable quality
will be *larger* than the GIF.  (So check the sizes too.)
Experience to date suggests that large, high-visual-quality GIFs are the best
candidates for conversion to JPEG.  They chew up the most storage so offer
the most potential savings, and they convert to JPEG with least degradation.
Don't waste your time converting any GIF much under 100 Kbytes.  Also, don't
expect JPEG files converted from GIFs to be as small as those created
directly from full-color originals.  To maintain image quality you may have
to let the converted files be as much as twice as big as straight-through
JPEG files would be (i.e., shoot for 1/2 or 1/3rd the size of the GIF file,
not 1/4th as suggested in earlier comparisons).
Many people have developed an odd habit of putting a large constant-color
border around a GIF image.  While useless, this was nearly free in terms of
storage cost in GIF files.  It is NOT free in JPEG files, and the sharp
border boundary can create visible artifacts ("ghost" edges).  Do yourself
a favor and crop off any border before JPEGing.  (If you are on an X Windows
system, XV's manual and automatic cropping functions are a very painless
way to do this.)
cjpeg's default Q setting of 75 is appropriate for full-color input, but
for GIF inputs, Q settings of 85 to 95 often seem to be necessary to avoid
image degradation.  (If you apply smoothing as suggested below, the higher
Q setting may not be necessary.)
Color GIFs of photographs or complex artwork are usually "dithered" to fool
your eye into seeing more than the 256 colors that GIF can actually store.
If you enlarge the image, you will see that adjacent pixels are often of
significantly different colors; at normal size the eye averages these pixels
together to produce the illusion of an intermediate color value.  The
trouble with dithering is that, to JPEG, it looks like high-spatial-frequency
color noise; and JPEG can't compress noise very well.  The resulting JPEG
file is both larger and of lower image quality than what you would have
gotten from JPEGing the original full color image (if you had it).
To get around this, you want to "smooth" the GIF image before compression.
Smoothing averages together nearby pixels, thus approximating the color that
you thought you saw anyway, and in the process getting rid of the rapid
color changes that give JPEG trouble.  Appropriate use of smoothing will
often let you avoid using a high Q factor, thus further reducing the size of
the compressed file, while still obtaining a better-looking output image
than you'd get without smoothing.
With the V4 free JPEG software (or products based on it), a simple smoothing
capability is built in.  Try "-smooth 10" or so when converting GIFs.
Values of 10 to 25 seem to work well for high-quality GIFs.  Heavy-handed
dithering may require larger smoothing factors.  (If you can see regular
fine-scale patterns on the GIF image even without enlargement, then strong
smoothing is definitely called for.)  Too large a smoothing factor will blur
the output image, which you don't want.  If you are an image processing
wizard, you can also do smoothing with a separate filtering program, such as
pnmconvol from the PBMPLUS package.  However, cjpeg's built-in smoother is
a LOT faster than pnmconvol...
The upshot of all this is that "cjpeg -quality 85 -smooth 10" is probably a
good starting point for converting GIFs.  But if you really care about the
image, you'll want to check the results and maybe try a few other settings.
---------------------
For more information about JPEG in general or the free JPEG software in
particular, contact the Independent JPEG Group at jpeg-info@uunet.uu.net.
--
tom lane
organizer, Independent JPEG Group
Internet: tgl@cs.cmu.edu	BITNET: tgl%cs.cmu.edu@carnegie
From: uk02183@nx10.mik.uky.edu (bryan k williams)
Subject: Re: CView answers
Keywords: Stupid Programming
Nntp-Posting-Host: nx10.mik.uky.edu
Organization: University of Kentucky
Lines: 4
Well, the temp file thing creates an obvious problem: it is impossible to use
cview for viewing CD-ROM based picture collections. And it is the ONLY non-
windows viewer that works properly with my Cirrus-based 24 bit VGA.
From: uk02183@nx10.mik.uky.edu (bryan k williams)
Subject: Re: CView answers
Keywords: Stupid Programming
Nntp-Posting-Host: nx10.mik.uky.edu
Organization: University of Kentucky
Lines: 6
re: majority of users not readding from floppy.
Well, how about those of us who have 1400-picture CD-ROMS and would like to use
CVIEW because it is fast and it works well, but can't because the moron lacked
the foresight to create the temp file in the program's path, not the current
didrectory?
From: full_gl@pts.mot.com (Glen Fullmer)
Subject: Needed: Plotting package that does...
Nntp-Posting-Host: dolphin
Reply-To: glen_fullmer@pts.mot.com
Organization: Paging and Wireless Data Group, Motorola, Inc.
Comments: Hyperbole mail buttons accepted, v3.07.
Lines: 27
Looking for a graphics/CAD/or-whatever package on a X-Unix box that will
take a file with records like:
n  a  b  p
where n = a count  - integer
a = entity a - string
b = entity b - string
p = type     - string
and produce a networked graph with nodes represented with boxes or circles
and the vertices represented by lines and the width of the line determined by
n.  There would be a different line type for each type of vertice. The boxes
need to be identified with the entity's name.  The number of entities < 1000
and vertices < 100000.  It would be nice if the tool minimized line
cross-overs and did a good job of layout.  ;-)
I have looked in the FAQ for comp.graphics and gnuplot without success. Any
ideas would be appreciated?
Thanks,
--
Glen Fullmer,          glen_fullmer@pts.mot.com,                  (407)364-3296
*******************************************************************************
*  "For a successful technology, reality must take precedence                 *
*   over public relations, for Nature cannot be fooled." - Richard P. Feynman *
*******************************************************************************
From: mscrap@halcyon.com (Marta Lyall)
Subject: Re: Video in/out
Organization: Northwest Nexus Inc. (206) 455-3505
Lines: 29
Organization: "A World of Information at your Fingertips"
Keywords:
In article <628@toontown.columbiasc.ncr.com> craig@toontown.ColumbiaSC.NCR.COM (Craig S. Williamson) writes:
>
>I'm getting ready to buy a multimedia workstation and would like a little
>advice.  I need a graphics card that will do video in and out under windows.
>I was originally thinking of a Targa+ but that doesn't work under Windows.
>What cards should I be looking into?
>
>Thanks,
>Craig
>
>--
>                                             "To forgive is divine, to be
>-Craig Williamson                              an airhead is human."
> Craig.Williamson@ColumbiaSC.NCR.COM                -Balki Bartokomas
> craig@toontown.ColumbiaSC.NCR.COM (home)                  Perfect Strangers
Craig,
You should still consider the Targa+. I run windows 3.1 on it all the
time at work and it works fine. I think all you need is the right
driver.
Josh West
email: mscrap@halcyon.com
Subject: .GL and .FLI specs
From: arthur@qedbbs.com (Arthur Choung)
Organization: The QED BBS, Lakewood CA
Lines: 6
Can somebody point out to me where I can find the specs for .GL and .FLI files
found on PC's?
------------------------------
arthur@qedbbs.com (Arthur Choung)  or  qed!arthur
The QED BBS -- (310)420-9327
From: DonH@cup.portal.com (Don - Hirschfeld)
Subject: Re: MS-Windows graphics viewer?
Organization: The Portal System (TM)
Lines: 7
Check out Image Pals v1.2 from U-Lead (until May, special $99 intro price,
310-523-9393). It has the basic image processing tools for all major formats,
does screen grabbing, and allows all your image files to be calalogged into
a thumbnail database. It's great!
Don
From: ccgwt@trentu.ca (Grant Totten)
Subject: Re: MS-Windows Screen Grabber (summary)
Lines: 28
Reply-To: ccgwt@trentu.ca (Grant Totten)
Organization: Trent University
Hi again,
Many thanks to all the people who responded to my request for a MS-
Windows screen grabber.  It proves to me AGAIN that the net is a
wonderful thing.  :-)
So, in summary:
There are two choices:
1)	Various screen grabber packages (Corel Draw has one, there are
a couple on simtel and cica).
2)	Use the built-in PrintScreen and Alt-PrintScreen functionality
to paste the screen (or window) to the clipboard.  Then paste the
clipboard to your application.  Cool!
Again, thanks for the info...
Grant (the MS-Windows newbie -- Unix and X are my bag ;-)
--
Grant Totten, Programmer/Analyst, Trent University, Peterborough Ontario
GTotten@TrentU.CA            Phone: (705) 748-1653   FAX: (705) 748-1246
========================================================================
A woman's place is in the wrong.
-- James Thurber
From: tychay@cco.caltech.edu (Terrence Y. Chay)
Subject: TIFF (NeXT Appsoft draw) -> GIF conversion?
Organization: California Institute of Technology, Pasadena
Lines: 27
NNTP-Posting-Host: punisher.caltech.edu
Summary: Help!
Keywords: TIFF GIF graphics conversion NeXT Appsoft
Okay all my friends are bitching at me that the map I made in Appsoft Draw
can't be displayed in "xv"... I checked... It's true, at least with version
1.0.  My readers on the NeXT have very little trouble on it (Preview messes
up the .eps, but does fine with the TIFF and ImageViewer0.9a behaves with
flying colors except it doesn't convert worth *&^^% ;-) )
Please is there any way I can convert this .drw from Appsoft 1.0 on the NeXT
to something more reasonable like .gif?  I have access to a sun4 and NeXTstep
3.0 systems.  any good reliable conversion programs would be helpful... please
email, I'll post responses if anyone wants me to... please email that to.
Yes I used alphachannel... (god i could choke steve jobs right now ;-) )
Yes i know how to archie, but tell me what to archie for ;-)
Also is there a way to convert to .ps plain format? ImageViiewer0.9 turns
out nothing recognizable....
terrychay
---
small editorial
-rw-r--r--  1 tychay   2908404 Apr 18 08:03 Undernet.tiff
-rw-r--r--  1 tychay     73525 Apr 18 08:03 Undernet.tiff.Z
and not using gzip! is it me or is there something wrong with this format?
From: disser@engin.umich.edu (David Disser)
Subject: 2D bitmap interpolation
Organization: University of Michigan
Lines: 11
Distribution: world
NNTP-Posting-Host: vesuvius.engin.umich.edu
Yesterday I wrote a program to do bilinear interpolation ala Numerical
Recipes, with the PBMPLUS libraries.  I'm pretty happy with the results,
but I'm looking for any already-coded non-linear interpolation schemes
before I go ahead an try to write one.  Any pointers?
--
) Dave Disser                 UM-CAEN User Services         Wealth is wasted
) disser@engin.umich.edu      229 Chrysler Center           on the old.
) (313) 763-3067              Ann Arbor, MI 48109-2092
From: pbenson@ecst.csuchico.edu (Paul A. Benson)
Subject: CD-ROM Indexes available
Organization: California State University, Chico
Lines: 6
NNTP-Posting-Host: cscihp.ecst.csuchico.edu
The file and contents listings for:
Knowledge Media Resource Library: Graphics 1
Knowledge Media Resource Library: Audio 1
are now available for anonymous FTP from cdrom.com
From: dgf1@quads.uchicago.edu (Dr. Eldon Tyrell)
Subject: Re: So what is the fastest Windows video c
Reply-To: dgf1@midway.uchicago.edu
Organization: University of Chicago
Lines: 21
In article <1993Apr17.054600.24917@exu.ericsson.se> ebuhcb@ebu.ericsson.se writes:
>In article 16APR199309101156@trentu.ca, ayounes@trentu.ca (Amro Younes, Trent University, C.C. #314, Peterborough, ON, Canada K9J 7B8. (705) 749-0391) writes:
>>I have the ATI GRAPHICS ULTRA PRO EISA version.  I must admit it has
>>received bad press but that was due to the faulty drivers it had.
>
>PC Magazine seems to be impressed with the ATI card in their most recent
>reviews.  In the April 13th issue they rate the ATI Graphics Ultra Pro
>(EISA version) as their "Editor's Choice".  They noted that the drivers
>had improved since they tested the ISA version in January...
>                                                            ...Cuyler
Yeah - they also gave it their "Editor's Choice" in the run-down of
graphics accelerators they tested in the previous issue, which is why
I bought (and then returned) mine.  The only conclusion I can come up with
is that PC Magazine has wildly different ways on determining the worthiness
of a video card than I do.
--
David Farley                           The University of Chicago Library
312 702-3426                              1100 East 57th Street, JRL-210
dgf1@midway.uchicago.edu                         Chicago, Illinois 60637
From: edimg@willard.atl.ga.us (Ed pimentel)
Subject: HELP! Need JPEG / MPEG encod-decode
Organization: Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814
Lines: 41
I am involve in a Distant Learning project and am in need
of Jpeg and Mpeg encode/decode source and object code.
This is a NOT-FOR PROFIT project that once completed I
hope to release to other educational and institutional
learning centers.
This project requires that TRUE photographic images be sent
over plain telephone lines. In addition if there is a REAL Good
GUI lib with 3D objects and all types of menu classes that can
be use at both end of the transaction (Server and Terminal End)
I would like to hear about it.
We recently posted an RFD announcing the OTG (Open Telematic Group)
that will concern itself with the developement of such application
and that it would incorporate NAPLPS, JPEG, MPEG, Voice, IVR, FAX
Sprites, Animation(fli, flc, etc...).
At present only DOS and UNIX environment is being worked on and it
our hope that we can generate enough interest where all the major
platform can be accomodated via a plaform independent API/TOOLKIT/SDK
We are of the mind that it is about time that such project and group
be form to deal with these issues.
We want to setup a repository where these files may be access such as
Simte20 and start putting together a OTG FAQ.
If you have some or any information that in your opinion would be
of interest to the OTG community and you like to see included in our
first FAQ please send it email to the address below.
Thanks in Advance
Ed
P.O. box 95901
Atlanta Ga. 30347-0901
(404)985-1198 zyxel 14.4
epimntl@world.std.com
ed.pimentel@gisatl.fidonet.org
--
edimg@willard.atl.ga.us (Ed pimentel)
gatech!kd4nc!vdbsan!willard!edimg
emory!uumind!willard!edimg
Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814
Organization: Penn State University
From: <JER114@psuvm.psu.edu>
Subject: scanned grey to color equations?
Lines: 7
A while back someone had several equations which could be used for changing 3 f
iltered grey scale images into one true color image.  This is possible because
it's the same theory used by most color scanners.  I am not looking for the obv
ious solution which is to buy a color scanner but what I do need is those equat
ions becasue I am starting to write software which will automate the conversion
process.  I would really appreciate it if someone would repost the 3 equations
/3 unknowns.   Thanks for the help!!!
From: ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles)
Subject: POV .TGA's and SpeedStar 24
Organization: Oak Ridge National Laboratory
X-Newsreader: TIN [version 1.1 PL9]
Lines: 17
I finally got a 24 bit viewer for my POVRAY generated .TGA files.
It was written in C by Sean Malloy and he kindly sent me a copy.  He
wrote it for the same purpose, to view .TGA files using his SpeedStar 24.
It ONLY works with the SpeedStar 24 and I cannot send copies since it is
not my program.  I believe the author may release a version at a future
time when the program is more developed.   He may or may not comment on
this, as he pleases.
Thanks to all who were helpful.
Regards,
Jim Nobles
From: agiacalo@nmsu.edu (Toni Giacalo)
Subject: need algorithm for reading and displaying bitmap files
Organization: New Mexico State University
Lines: 7
NNTP-Posting-Host: gauss.nmsu.edu
Keywords: GIF PCX BMP
I'm making a customized paint program in DOS and need an algorithm
for reading bitmap files like GIF, PCX, or BMP.  Does anyone have
such an algorithm?  I've tried copying one out of a book for reading
.PCX format but it doesn't work.  I will take an algorithm for any
format that can be created from Windows Paint.
Thanks!
Toni
From: ken@cs.UAlberta.CA (Huisman Kenneth M)
Subject: images of earth
Nntp-Posting-Host: cab101.cs.ualberta.ca
Organization: University of Alberta
Lines: 14
I am looking for some graphic images of earth shot from space.
( Preferably 24-bit color, but 256 color .gif's will do ).
Anyways, if anyone knows an FTP site where I can find these, I'd greatly
appreciate it if you could pass the information on.  Thanks.
( please send email ).
Ken Huisman
ken@cs.ualberta.ca
From: watson@madvax.uwa.oz.au (David Watson)
Subject: Re: Sphere from 4 points?
Organization: Maths Dept UWA
Lines: 23
Distribution: world
NNTP-Posting-Host: xanthorrhoea.maths.uwa.edu.au
In article <1qkgbuINNs9n@shelley.u.washington.edu>,
bolson@carson.u.washington.edu (Edward Bolson) writes:
|> Given 4 points (non coplanar), how does one find the sphere, that is,
|> center and radius, exactly fitting those points?
Finding the circumcenter of a tetrahedron is discussed on page 33 in
CONTOURING: A guide to the analysis and display of spatial data,
by Dave Watson, Pergamon Press,  1992, ISBN 0 08 040286 0, 321p.
Each pair of tetrahedral vertices define a plane which is a
perpendicular bisector of the line between that pair.  Express each
plane in the form Ax + By + Cz = D
and solve the set of simultaneous equations from any three of those
planes that have a vertex in common (all vertices are used).
The solution is the circumcenter.
--
Dave Watson                          Internet: watson@maths.uwa.edu.au
Department of Mathematics
The University of Western Australia               Tel: (61 9) 380 3359
Nedlands, WA 6009  Australia.                     FAX: (61 9) 380 1028
From: tdawson@engin.umich.edu (Chris Herringshaw)
Subject: PaintProgram Wanted
Organization: University of Michigan Engineering, Ann Arbor
Lines: 8
Distribution: world
NNTP-Posting-Host: antithesis.engin.umich.edu
Excuse the sheer newbieness of this post, but I am looking for a decent
PaintProgram which will save to various file formats (.BMP  .PCX  etc etc)
via ftp, freeware, or shareware.  I would like to check out the available
programs for little $$ before I check out the commercial market.
Thanks in advance for any help or direction you can give me.
Daemon
From: wbdst+@pitt.edu (William B Dwinnell)
Subject: VESA as a graphics standard
Organization: University of Pittsburgh
Lines: 7
In the UIBM PC world, how much of a "standard" has VESA become for
SVGA graphics?  I know there are lots of graphics-board companies out
there, as well as several graphics chips manufacturers- are they adhering to
the VESA standard, and what effect is/will the VESA Local Bus have on all
of this?
Anyone?
From: egerter@gaul.csd.uwo.ca (Barry Egerter)
Subject: Where's DMORF?
Organization: Computer Science Dept., Univ. of Western Ontario, London, Canada
Distribution: usa
Keywords: DMORF
Nntp-Posting-Host: obelix.gaul.csd.uwo.ca
Lines: 26
Could anyone direct me to the FTP site where I can find the DOS-based
morphing package called DMORF12.ZIP?  I had downloaded this file last week,
but the new DOS 6 crashed my hard drive and I lost it. Now I can't find the
site where I got it from.......
Also, are there any other morphing packages out for DOS (freeware or shareware)
Thanks in advance,
Barry
/---------------------------------------------------------------------------\
|       \\          //  _______   _______    egerter@obelix.gaul.csd.uwo.ca |
|        \\        //  //            |                                      |
|         \\  /\  //  ||   ___       |       Author of WGT graphics         |
|          \\//\\//   ||     \\      |       toolkit for 320*200*256 VGA    |
|           \/  \/ .   \\____// .    |  .    Version 3.5 Now Available      |
|                                          (Turbo/Borland C++ 1.0 or better)|
|JOYSTICK  MOUSE  GRAPHICS PRIMITIVES  NON-BGI POWER  GIF/PCX  DATA STORAGE |
|SPRITES  MULTIWAY SCROLLING GAMES  BITMAP WARPING/RESIZING  SB SUPPORT  FLI|
\___________________________________________________________________________/
--
/---------------------------------------------------------------------------\
|       \\          //  _______   _______    egerter@obelix.gaul.csd.uwo.ca |
|        \\        //  //            |                                      |
From: bolson@carson.u.washington.edu (Edward Bolson)
Subject: Re: Sphere from 4 points?
Organization: University of Washington, Seattle
Lines: 33
Distribution: world
NNTP-Posting-Host: carson.u.washington.edu
I plan to post a summary of responses to this as soon as I have working
code, which I will also include.  The intersection of 3 planes method
looks best, but my implementation based on a short article in
Graphics Gems I doesn't work.  I may be misinterpreting, of course.
I had avoided the simultaneous solution of the plane equations in favor
of dot and cross products, but the former may actually be better.  In either
case a matrix determinant needs to be computed (implicitly in the solution
of linear equations).
To get the planes, I was taking the midpoint of the line from, say,
P1 to P2, and setting the normal as the "normalized" vector from P1 to P2.
These just plugged into the formula in Graphics Gems.  HOwever, the resulting
center point is only occasionally equidistant from all 4 of my test points
(for different tests).  My matrix/vector math is very rusty, but it looks like
I need to verify the formula, or use the simultaneous equation solution, which
will require bringing in another routine I don't have (but should be easy to
find).
Another method is to first find the center of the circle defined by 2 sets
of 3 points, and intersecting the normals from there.  This would also define
the circle center.  However, small numerical imprecisions would make the
lines not intersect.  Supposedly 3 planes HAVE to intersect in a unique
point if they are not parallel.
Ed
Thanks to all who answered so far.
--
Ed Bolson
University of Washington  Cardiovascular Research               (206)543-4535
bolson@u.washington.edu (preferred)
bolson@max.bitnet                bolson@milton.u.washington.edu (if you must)
From: steve@hcrlgw (Steven Collins)
Subject: Sphere from 4 points
Organization: Central Research Lab. Hitachi, Ltd.
Lines: 24
Nntp-Posting-Host: hcrlgw
>
>Another method is to first find the center of the circle defined by 2 sets
>of 3 points, and intersecting the normals from there.  This would also define
>the circle center.  However, small numerical imprecisions would make the
>lines not intersect.  Supposedly 3 planes HAVE to intersect in a unique
>point if they are not parallel.
>
Having thought about this, why don't you project the 2 lines onto the 2d
plane formed by the lines.  Do an intersection calculation in the plane in
2D, where you're guaranteed a unique solution (unless they're parallel which
won't happen in this case), and then use parametric distance along the lines
from the circle centres to determine the exact point of interest.  This
bypasses the messy error propogation required to do the calculation in 3d.
Hope I haven't put my foot in it again!
steve
---
--
+---------------------------------------+--------------------------------+
| Steven Collins			| email: steve@crl.hitachi.co.jp |
| Visiting Computer Graphics Researcher	| phone: (0423)-23-1111 	 |
| Hitachi Central Research Lab. Tokyo.	| fax:   (0423)-27-7742		 |
From: ldo@waikato.ac.nz (Lawrence D'Oliveiro, Waikato University)
Subject: Re: Rumours about 3DO ???
Organization: University of Waikato, Hamilton, New Zealand
Lines: 52
In article <1993Apr16.212441.34125@rchland.ibm.com>, ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado) writes:
> In article <1993Apr15.164940.11632@mercury.unt.edu>, Sean McMains <mcmains@unt.edu> writes:
>
> |>
> |> Ricardo, the animation playback to which Lawrence was referring in an
> |> earlier post is plain old Quicktime 1.5 with the Compact Video codec.
> |> I've seen digitized video (some of Apple's early commercials, to be
> |> precise) running on a Centris 650 at about 30fps very nicely (16-bit
> |> color depth). I would expect that using the same algorithm, a RISC
> |> processor should be able to approach full-screen full-motion animation,
> |> though as you've implied, the processor will be taxed more with highly
> |> dynamic material.
>
>
>    Sean, I don't want to get into a 'mini-war' by what I am going to say,
> but I have to be a little bit skeptic about the performance you are
> claiming on the Centris, you'll see why (please, no-flames, I reserve
> those for c.s.m.a :-) )
>
>    I was in Chicago in the last consumer electronics show, and Apple had a
> booth there.  I walked by, and they were showing real-time video capture
> using a (Radious or SuperMac?) card to digitize and make right on the spot
> quicktime movies.  I think the quicktime they were using was the old one
> (1.5).
That is in fact the current version (it only came out in December).
>    They digitized a guy talking there in 160x2xx something.  It played back quite
> nicely and in real time.  The guy then expanded the window (resized) to 25x by
> 3xx (320 in y I think) and the frame rate decreased enough to notice that it
> wasn't 30fps (or about 30fps) anymore.  It dropped to like 15 fps.  Then he
> increased it just a bit more, and it dropped to 10<->12 fps.
>
>    Then I asked him what Mac he was using... He was using a Quadra (don't know
> what model, 900?) to do it, and he was telling the guys there that the Quicktime
> could play back at the same speed even on an LCII.
>
>    Well, I spoiled his claim so to say, since a 68040 Quadra Mac was having
> a little bit of trouble.  And this wasn't even from the hardisk!  This was
> from memory!
My test movie was created at 320*240 resolution, it wasn't being scaled up.
Scaling was a very CPU-intensive operation with the original QuickTime (1.0);
the current version has optimizations for ratios like 4:1 (160*120 -> 320*240),
but even so, I'm prepared to believe that the performance isn't as good as
with playing back an actual 320*240 movie. I haven't done any numerical
measurements for scaled playback.
Lawrence D'Oliveiro                       fone: +64-7-856-2889
Computer Services Dept                     fax: +64-7-838-4066
University of Waikato            electric mail: ldo@waikato.ac.nz
Hamilton, New Zealand    37^ 47' 26" S, 175^ 19' 7" E, GMT+12:00
From: ed@cwis.unomaha.edu (Ed Stastny)
Subject: Chaos Editions: IDEA (Internation Directory of Electronic Arts)
Keywords: electronic art
Organization: University of Nebraska at Omaha
Lines: 30
I've borrowed the 1992-93 version of this book from a friend...holy
moley!  What a wealth of contacts.  Five-hundred pages of information
about electronic artists and organizations around the globe (many have
email addresses).  An up to the minute database of this information is
also available on Minitel (the book's based in France...are there any
Internet=>Minitel gates?).  The book is printed in French and English.
To have you or your organization listed in IDEA, just send your
information to:
Annick Bureaud
IDEA
57, rue Falguiere
75015 Paris
France
It's free to be listed in it, I'm not sure how widely distributed the
book is or how much it costs.  I'm not affiliated with them in any way,
I was just impressed by their collection of organizations and artists.
I highly encourage all involved in electronic media (video, music,
graphics, animation, etc.) to send in your entry and encourage them to
make their database available on Internet.
...e
--
Ed Stastny           | OTIS Project, END PROCESS, SOUND News and Arts
PO BX 241113	     | FTP: sunsite.unc.edu (/pub/multimedia/pictures/OTIS)
Omaha, NE 68124-1113 |      141.214.4.135 (projects/otis)
---------------------- EMail: ed@cwis.unomaha.edu, ed@sunsite.unc.edu
From: jhwitten@cs.ruu.nl (Jurriaan Wittenberg)
Subject: Re: images of earth
Organization: Utrecht University, Dept. of Computer Science
Lines: 27
In <1993Apr18.230732.27804@kakwa.ucs.ualberta.ca> ken@cs.UAlberta.CA (Huisman Kenneth M) writes:
>I am looking for some graphic images of earth shot from space.
>( Preferably 24-bit color, but 256 color .gif's will do ).
>
>Anyways, if anyone knows an FTP site where I can find these, I'd greatly
>appreciate it if you could pass the information on.  Thanks.
>
>
Try FTP-ing at
pub-info.jpl.nasa.gov  (128.149.6.2) (simple dir-structure)
and  ames.arc.nasa.gov
at /pub/SPACE/GIF and /pub/SPACE/JPEG
sorry only 8 bits gifs and jpegs :-( great piccy's though (try the *x.gif
files they're semi-huge gif89a files)
^^-watch out gif89a dead ahead!!!
Good-luck (good software to be found out-there too)
Jurriaan
JHWITTEN@CS.RUU.NL
--
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
|----=|=-<- - - - - - JHWITTEN@CS.RUU.NL- - - - - - - - - - - - ->-=|=----|
|----=|=-<-Jurriaan Wittenberg- - -Department of ComputerScience->-=|=----|
|____/|\_________Utrecht_________________The Netherlands___________/|\____|
From: neideck@nestvx.enet.dec.com (Burkhard Neidecker-Lutz)
Subject: Re: Rumours about 3DO ???
Organization: CEC Karlsruhe
Lines: 17
NNTP-Posting-Host: NESTVX
Keywords: 3DO ARM QT Compact Video
In article <2BD07605.18974@news.service.uci.edu> rbarris@orion.oac.uci.edu (Robert C. Barris) writes:
>I'm not sure how a Centris/20MHz 040 stacks up against the 25 MHz ARM in
>the 3DO box. Obviously the ARM is faster, but how much?
Why would it have to be much faster (it probably is) ? Assuming an ARM
is about as efficient as a MIPS R3000 for integer calculations, doing
a Compact-Video-like digital video codec is an easy task. For Software
Motion Pictures (which is a lot like Compact Video, though it predates
it), we get 48 frames/sec. at 320x240 on a DECstation 5000/200. That
machine has a 25 Mhz MIPS R3000.
Burkhard Neidecker-Lutz
Distributed Multimedia Group, CEC Karlsruhe          EERP Portfolio Manager
Software Motion Pictures & BERKOM II Project         Multimedia Base Technology
Digital Equipment Corporation
neidecker@nestvx.enet.dec.com
From: alan@saturn.cs.swin.OZ.AU (Alan Christiansen)
Subject: Re: Sphere from 4 points?
Organization: Swinburne University of Technology
Lines: 71
NNTP-Posting-Host: saturn.cs.swin.oz.au
spworley@netcom.com (Steve Worley) writes:
>bolson@carson.u.washington.edu (Edward Bolson) writes:
>>Boy, this will be embarassing if it is trivial or an FAQ:
>>Given 4 points (non coplanar), how does one find the sphere, that is,
>>center and radius, exactly fitting those points?  I know how to do it
>>for a circle (from 3 points), but do not immediately see a
>>straightforward way to do it in 3-D.  I have checked some
>>geometry books, Graphics Gems, and Farin, but am still at a loss?
>>Please have mercy on me and provide the solution?
>It's not a bad question: I don't have any refs that list this algorithm
>either. But thinking about it a bit, it shouldn't be too hard.
>1) Take three of the points and find the plane they define as well as
>the circle that they lie on (you say you have this algorithm already)
>2) Find the center  of this circle. The line passing through this center
>perpendicular to the plane of the three points passes through the center of
>the sphere.
>3) Repeat with the unused point and two of the original points. This
>gives you two different lines that both pass through the sphere's
>origin. Their interection is the center of the sphere.
>4) the radius is easy to compute, it's just the distance from the center to
>any of the original points.
>I'll leave the math to you, but this is a workable algorithm. :-)
Good I had a bad feeling about this problem because of a special case
with no solution that worried me.
Four coplanar points in the shape of a square have no unique sphere
that they are on the surface of.
Similarly 4 colinear point have no finite sized sphere that they are on the
surface of.
These algorithms being geometrical designed rather than algebraically design
meet these problems neatly.
When determining which plane the 3 points are on if they are colinear
the algorithm should afil or return infinite R.
When intersecting the two lines there are 2 possibilities
they are the same line  (the 4 points were on a planar circle)
they are different lines but parallel. There is a sphere of in radius.
This last case can be achieved with 3 colinier points and any 4th point
by taking the 4th point and pairs of the first 3 parallel lines will be produced
it can also be achieved by
If all 4 points are coplanar but are not on one circle.
It seems to me that the algorithm only fails when the 4 points are coplanar.
The algorithm always fails when the points are coplanar.
(4 points being colinear => coplanar)
Testing if the 4th point is coplanar when the plane of the first 3 points
has been found is trivial.
>An alternate method would be to take pairs of points: the plane formed
>by the perpendicular bisector of each line segment pair also contains the
>center of the sphere. Three pairs will form three planes, intersecting
>at a point. This might be easier to implement.
>-Steve
>spworley@netcom.com
From: ricky@watson.ibm.com (Rick Turner)
Subject: Re: images of earth
Disclaimer: This posting represents the poster's views, not necessarily those of IBM.
Nntp-Posting-Host: danebury.hursley.ibm.com
Organization: IBM UK Labs
Lines: 6
Look in the /pub/SPACE directory on ames.arc.nasa.gov - there are a number
of earth images there. You may have to hunt around the subdirectories as
things tend to be filed under the mission (ie, "APOLLO") rather than under
the image subject.
Rick
From: sean@whiting.mcs.com (Sean Gum)
Subject: Re: CView answers
Organization: -*-  Whiting Corporation, Harvey, Illinois  -*-
X-Newsreader: Tin 1.1 PL4
Lines: 11
renew@blade.stack.urc.tue.nl (Rene Walter) writes:
: A very kind soul has mailed me this reply for the bugs in CView.
: Since he isn't in the position to post this himself, he asked me to post
: it for him, but to leave his name out. So here it comes:
:
: CView has quite a number of bugs.  The one you mention is perhaps the most
:
A stupid question, but what will CView run on and where can I get it? I
am still in need of a GIF viewer for Linux. (Without X-Windows.)
Thanks!
From: bryanw@rahul.net (Bryan Woodworth)
Subject: Re: CView answers
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 14
In <1993Apr16.114158.2246@whiting.mcs.com> sean@whiting.mcs.com (Sean Gum) writes:
>A stupid question, but what will CView run on and where can I get it? I
>am still in need of a GIF viewer for Linux. (Without X-Windows.)
>Thanks!
>
Ho boy. There is no way in HELL you are going to be able to view GIFs or do
any other graphics in Linux without X windows!  I love Linux because it is
so easy to learn..  You want text?  Okay.   Use Linux. You want text AND
graphics?  Use Linux with X windows.  Simple.  Painless.  REQUIRED to have
X Windows if you want graphics!  This includes fancy word processors like
doc, image viewers like xv, etc.
From: bryanw@rahul.net (Bryan Woodworth)
Subject: Re: CView answers
Keywords: Stupid Programming
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 18
In <1qlobb$p5a@tuegate.tue.nl> renew@blade.stack.urc.tue.nl (Rene Walter) writes:
[Most info regarding dangers of reading from Floppy disks omitted]
>unrevcoverable way.  SO BE CAREFUL!  It is incredibly poor programming for a
>program to do this.  On the other hand, when choosing files in the Open Files
>menu, CView insists on doing a few disk reads every time one moves the
>hi-lighter square.  Incredibly annoying when it could do them all at once
>when it gets the directory info.  And really, how much effort does it take to
>sort a directory listing?
In all fairness, how many people do you know personally who read images
from Floppy drives?  I haven't tried it with JPEGs, but I do realize how
agonizingly slow it is with GIF files.
Nevertheless, it is an important bug that needs to be squashed.  I am
merely pointing out that it was probably overlooked.  While it is serious,
one must keep in mind that it will probably affect at most 5% of the
targeted users of CView.
From: cb@wixer.bga.com (Cyberspace Buddha)
Subject: Re: CView answers
Keywords: Stupid Programming
Organization: Real/Time Communications
Lines: 15
renew@blade.stack.urc.tue.nl (Rene Walter) writes:
>over where it places its temp files: it just places them in its
>"current directory".
I have to beg to differ on this point, as the batch file I use
to launch cview cd's to the dir where cview resides and then
invokes it.  every time I crash cview, the 0-byte temp file
is found in the root dir of the drive cview is on.
just my $0.13,
cb
--
Cyberspace Buddha { Why are you looking for more knowledge when you  } /(o\
cb@wixer.bga.com   \ do not pay attention to what you already know? /  \o)/
cb@wixer.cactus.org }   "get out of my chair!" -- Hillary to god   { peace...
From: N020BA@tamvm1.tamu.edu
Subject: Help! Need 3-D graphics code/package for DOS!!!
Organization: Texas A&M University
Lines: 7
NNTP-Posting-Host: tamvm1.tamu.edu
Help!! I need code/package/whatever to take 3-D data and turn it into
a wireframe surface with hidden lines removed. I'm using a DOS machine, and
the code can be in ANSI C or C++, ANSI Fortran or Basic. The data I'm using
forms a rectangular grid.
Please post your replies to the net so that others may benefit. IMHO, this
is a general interest question.
Thank you!!!!!!
From: d91-hes@tekn.hj.se (STEFAN HERMANSSON)
Subject: re: Vesa on the Speedstar 24
Organization: H|gskolan i J|nk|ping
Lines: 8
Nntp-Posting-Host: pc9_b109.et.hj.se
Just posting to John Cormack.
I wanted to tell you that there is a "slight" difference between
Speedstar 24 and Speedstar 24X
/Stefan
From: sd345@city.ac.uk (Michael Collier)
Subject: Converting images to HP LaserJet III?
Nntp-Posting-Host: hampton
Organization: The City University
Lines: 14
Does anyone know of a good way (standard PC application/PD utility) to
convert tif/img/tga files into LaserJet III format.  We would also like to
do the same, converting to HPGL (HP plotter) files.
Please email any response.
Is this the correct group?
Thanks in advance.  Michael.
--
Michael Collier (Programmer)                 The Computer Unit,
Email: M.P.Collier@uk.ac.city                The City University,
Tel: 071 477-8000 x3769                      London,
Fax: 071 477-8565                            EC1V 0HB.
From: andreasa@dhhalden.no (ANDREAS ARFF)
Subject: comp.graphics.programmer
Organization: Ostfold College
Lines: 20
Nntp-Posting-Host: pc105
Hello netters
Sorry, I don't know if this is the right way of doing this kind of thing,
probably should be a CFV, but since I don't have tha ability to create a
news group myself, I just want to start the discussion.
I enjoy reading c.g very much, but I often find it difficult to sort out what
I'm interested in. Everything from screen-drivers, graphics cards, graphics
programming and graphics programs are discused here. What I'd like is a
comp.graphics.programmer news group.
What do you other think.
Arff
"Also for the not religous confessor, there is a mystery of higher values,
who's birth mankind - to the last - builds upon. They are indisputible. And
often disregarded. Seldom you hear them beeing prized, as seldom as you hear
a seeing man prizeing what he sees." Per Lagerkvist, The Fist
(Free translation from Swedish)
--Andreas Arff  andreasa@dhhalden.no--
From: razor@swix.nvg.unit.no (Runar Jordahl)
Subject: Re: Help! Need 3-D graphics code/package for DOS!!!
Organization: University of Trondheim, Norway
Lines: 8
X-Newsreader: TIN [version 1.1 PL6]
N020BA@tamvm1.tamu.edu wrote:
:     Help!! I need code/package/whatever to take 3-D data and turn it into
: a wireframe surface with hidden lines removed. I'm using a DOS machine, and
: the code can be in ANSI C or C++, ANSI Fortran or Basic. The data I'm using
: forms a rectangular grid.
:    Please post your replies to the net so that others may benefit. IMHO, this
: is a general interest question.
:    Thank you!!!!!!
From: sp1marse@lina (Marco Seirio)
Subject: Surface intersections
Lines: 7
X-Newsreader: Tin 1.1 PL3
I have a problem with intersections between two surfaces.
Does anybody have a easy to understand algorithm for that or maybe
even C source??
Marco Seirio - In real life sp1marse@caligula.his.s
From: froument@lifl.lifl.fr (Froumentin Max)
Subject: WANTED: Atomic Energy Res. Establishment (UK) techreport
Organization: Laboratoire d'Informatique Fondamentale de Lille
Lines: 16
Distribution: comp
NNTP-Posting-Host: lifl.lifl.fr
I'm looking for the following paper:
Marlow, S. and Powell, M.J.D.
A FORTRAN subroutine for plotting the part of a conic that is inside a given
triangle. Rep. R-8336, Atomic Energy Res. Establishment, Harwell, England
1976
Or anything related (including 3D cases)
Max
--
-----------------------------------------------------------------------------
Max Froumentin                    |
Laboratoire d'Informatique        |  "Always better, never first."
Fondamentale de Lille             |         - Tigran Petrossian
France                            |
-----------------------------------------------------------------------------
From: roell@informatik.tu-muenchen.de (Thomas Roell)
Subject: Re: 24 bit Graphics cards
In-Reply-To: rjs002c@parsec.paradyne.com's message of Wed, 14 Apr 1993 21:59:34 GMT
Organization: Inst. fuer Informatik, Technische Univ. Muenchen, Germany
Lines: 20
>I am looking for EISA or VESA local bus graphic cards that support at least
>1024x786x24 resolution.  I know Matrox has one, but it is very
>expensive. All the other cards I know of, that support that
>resoultion, are striaght ISA.
What about the ELSA WINNER4000 (S3 928, Bt485, 4MB, EISA), or the
Metheus Premier-4VL (S3 928, Bt485, 4MB, ISA/VL) ?
>Also are there any X servers for a unix PC that support 24 bits?
As it just happens, SGCS has a Xserver (X386 1.4) that does
1024x768x24 on those cards. Please email to info@sgcs.com for more
details.
- Thomas
--
-------------------------------------------------------------------------------
Das Reh springt hoch, 				e-mail: roell@sgcs.com
das Reh springt weit,				#include <sys/pizza.h>
was soll es tun, es hat ja Zeit ...
From: dwestner@cardhu.mcs.dundee.ac.uk (Dominik Westner)
Subject: need a viewer for gl files
Organization: Maths & C.S. Dept., Dundee University, Scotland, UK
Lines: 10
NNTP-Posting-Host: cardhu.mcs.dundee.ac.uk
X-Newsreader: TIN [version 1.1 PL9]
Hi,
the subject says it all. Is there a PD viewer for gl files (for X)?
Thanks
Dominik
From: hahm@fossi.hab-weimar.de (peter hahm)
Subject: Radiosity
Keywords: radiosity, raytracing, rendering
Nntp-Posting-Host: fossi.hab-weimar.de
Organization: Hochschule fuer Architektur und Bauwesen Weimar, Germany
Lines: 17
RADIOSITY SOURCES WANTED !!!
============================
When I read the comp.graphics group, I never found something about
radiosity. Is there anybody interested in out there? I would be glad
to hear from somebody.
I am looking for source-code for the radiosity-method. I have already
read common literature, e. g.Foley ... . I think little examples could
help me to understand how radiosity works. Common languages ( C, C++,
Pascal) prefered.
I hope you will help me!
Yours
Peter
From: ezzie@lucs2.lancs.ac.uk (One of those daze...)
Subject: Borland turbo C libraries for S3 graphics card
Organization: Lancaster University Computer Society
Lines: 5
I've recently got hold of a PC with an S3 card in it, and I'd like to do some
C programming with it, are there any libraries out there that will let me
access the high resolution modes available via Borland Turbo C?
Andy
From: amann@iam.unibe.ch (Stephan Amann)
Subject: Re: Radiosity
Reply-To: amann@iam.unibe.ch
Organization: University of Berne, Institute of Computer Science and Applied Mathematics, Special Interest Group Computer Graphics
Lines: 54
In article 16598@rz.uni-jena.de, hahm@fossi.hab-weimar.de (peter hahm) writes:
>
>
>RADIOSITY SOURCES WANTED !!!
>============================
>
>When I read the comp.graphics group, I never found something about
>radiosity. Is there anybody interested in out there? I would be glad
>to hear from somebody.
>I am looking for source-code for the radiosity-method. I have already
>read common literature, e. g.Foley ... . I think little examples could
>help me to understand how radiosity works. Common languages ( C, C++,
>Pascal) prefered.
>I hope you will help me!
>
>Yours
>Peter
>
Peter,  there's a radiosity package ahead. The only problem is: there
are a few miles to sail ... ;-^
Let's be serious... I'm working on a radiosity package, written in C++.
I would like to make it public domain.  I'll announce it in c.g. the minute
I finished it.
That were the good news. The bad news: It'll take another 2 months (at least)
to finish it.
In the meantime you may have a look at the file
Radiosity_code.tar.Z
located at
compute1.cc.ncsu.edu
(there are some other locations; have a look at archie to get the nearest)
Hope that'll help.
Yours
Stephan
----------------------------------------------------------------------------
Stephan Amann     SIG Computer Graphics, University of Berne, Switzerland
amann@iam.unibe.ch
Tel +41 31 65 46 79	   Fax +41 31 65 39 65
Projects: Radiosity, Raytracing, Computer Graphics
----------------------------------------------------------------------------
From: chris@zeus.alta-oh.com (Chris Murphy)
Subject: Re: Needed: Plotting package that does...
Nntp-Posting-Host: zeus.alta-oh.com
Organization: ALTA Analytics
Lines: 38
In article <FULL_GL.93Apr18005752@dolphin.pts.mot.com>, full_gl@pts.mot.com (Glen Fullmer) writes:
|> Looking for a graphics/CAD/or-whatever package on a X-Unix box that will
|> take a file with records like:
|>
|> n  a  b  p
|>
|> where n = a count  - integer
|>       a = entity a - string
|>       b = entity b - string
|>       p = type     - string
|>
|> and produce a networked graph with nodes represented with boxes or circles
|> and the vertices represented by lines and the width of the line determined by
|> n.  There would be a different line type for each type of vertice. The boxes
|> need to be identified with the entity's name.  The number of entities < 1000
|> and vertices < 100000.  It would be nice if the tool minimized line
|> cross-overs and did a good job of layout.  ;-)
|>
|>   I have looked in the FAQ for comp.graphics and gnuplot without success. Any
|> ideas would be appreciated?
|>
|> Thanks,
|> --
|> Glen Fullmer,          glen_fullmer@pts.mot.com,                  (407)364-3296
|>
Hi,
See Roger Grywalski's response to :
Re: Help on network visualization
in comp.graphics.visualization.
Amongst other things, it does exactly this!
--
Chris Murphy    -   chris@alta-oh.com
(614) 792-2222      Columbus. OH.
From: Sean McMains <mcmains@unt.edu>
Subject: Re: Rumours about 3DO ???
X-Xxmessage-Id: <A7F81FD2F801023C@seanmac.acs.unt.edu>
X-Xxdate: Mon, 19 Apr 93 15: 22:26 GMT
Organization: University of North Texas
X-Useragent: Nuntius v1.1.1d20
Lines: 83
First off: Thanks to all who have filled me in on the existence of the
68070. I assumed rashly that the particular number would be reserved for
further enhancements to the Motorola line, rather than meted out to
another company. Ah, well, I guess that's what I get when I assume the
computer industry will operate in a logical manner! ;-)
In article <1993Apr16.212441.34125@rchland.ibm.com> Ricardo Hernandez
Muchado, ricardo@rchland.vnet.ibm.com writes:
>   Sean, I don't want to get into a 'mini-war' by what I am going to say,
>but I have to be a little bit skeptic about the performance you are
>claiming on the Centris, you'll see why (please, no-flames, I reserve
>those for c.s.m.a :-) )
>
>   I was in Chicago in the last consumer electronics show, and Apple had
a
>booth there.  I walked by, and they were showing real-time video capture
>using a (Radious or SuperMac?) card to digitize and make right on the
spot
>quicktime movies.  I think the quicktime they were using was the old one
>(1.5).
Version 1.5 of Quicktime is, as has been stated, the current version of
the software. The older version is 1.0, and 1.6 is on the horizon in the
not too distant future.
>   They digitized a guy talking there in 160x2xx something.  It played
back quite
>nicely and in real time.  The guy then expanded the window (resized) to
25x by
>3xx (320 in y I think) and the frame rate decreased enough to notice
that it
>wasn't 30fps (or about 30fps) anymore.  It dropped to like 15 fps.  Then
he
>increased it just a bit more, and it dropped to 10<->12 fps.
Quicktime does a much better job of playing back movies at size than it
does playing back resized movies. Apparently the process of expanding
each frame's image and dithering the resultant bitmap to the appropriate
bit depth is pretty processor-intensive. There are optimizers that work
pretty well for showing movies at double size, but if you drop to 1.9x
size or increase to 2.1x size, performance suffers dramatically.
>   Then I asked him what Mac he was using... He was using a Quadra
(don't know
>what model, 900?) to do it, and he was telling the guys there that the
Quicktime
>could play back at the same speed even on an LCII.
He lied. :-) Quicktime is very CPU dependent. He was probably confused by
the fact that QT is locked to an internal timecode, and will play in the
same amount of time on any machine. However, an LC will drop frames in
order to keep the sound and video synced up.
The Centris and Quadras have similar CPUs and will thus boast similar
performance, though the Quadras will be a bit faster due to marginally
faster clock speeds and somewhat different architecture.
>   Well, I spoiled his claim so to say, since a 68040 Quadra Mac was
having
>a little bit of trouble.  And this wasn't even from the hardisk!  This
was
>from memory!
>
>   Could it be that you saw either a newer version of quicktime, or some
>hardware assisted Centris, or another software product running the
>animation (like supposedly MacroMind's Accelerator?)?
I expect that the version of the Quicktime software you saw was 1.0 -- I
was using was 1.5. One of the new codecs in v1.5 allows video at nearly
twice the size and the same frame rate as what version 1.0 could handle.
The Centris 650 I saw was a plain-vanilla, with the exception of the nice
speakers that were playing the sound, and the software was Movie Player,
the QT player Apple includes with the software.
>   Don't misunderstand me, I just want to clarify this.
No problem -- it still surprises me that Quicktime is able to do the
things it does as well as it can.
========================================================================
Sean McMains              | Check out the Gopher    | Phone:817.565.2039
University of North Texas | New Bands Info server   | Fax  :817.565.4060
P.O. Box 13495            | at seanmac.acs.unt.edu  | E-Mail:
Denton TX 76203           |                         |  McMains@unt.edu
From: clldomps@cs.ruu.nl (Louis van Dompselaar)
Subject: Re: images of earth
Organization: Utrecht University, Dept. of Computer Science
Lines: 17
In <C5q0HK.KoD@hawnews.watson.ibm.com> ricky@watson.ibm.com (Rick Turner) writes:
>Look in the /pub/SPACE directory on ames.arc.nasa.gov - there are a number
>of earth images there. You may have to hunt around the subdirectories as
>things tend to be filed under the mission (ie, "APOLLO") rather than under
>the image subject.
>
For those of you who don't need 24 bit, I got a 32 colour Amiga IFF
of a cloudless Earth (scanned). Looks okay when mapped on a sphere.
E-mail me and I'll send it you...
Louis
--
I'm hanging on your words, Living on your breath, Feeling with your skin,
Will I always be here?  -- In Your Room [ DM ]
From: boebert@sctc.com (Earl Boebert)
Subject: Removing Distortion From Bitmapped Drawings?
Organization: SCTC
Lines: 47
Let's say you have a scanned image of a line drawing; in this case a
boat, but it could be anything.  On the drawing you have a set of
reference points whose true x,y positions are known.
Now you digitize the drawing manually (in this case, using Yaron
Danon's excellent Digitize program).  That is, you use a program which
converts cursor positions to x,y and saves those values when you click
the mouse.
Upon digitizing you notice that the reference point values that come
out of the digitizing process differ in small but significant ways
from the known true values.  This is understandable because the
scanned drawing is a reproduction of the original and there are
successive sources of distortion such as differential expansion and
contraction of paper, errors introduced in the printing process,
scanner errors and what have you.
The errors are not uniform over the entire drawing, so "global"
adjustments such as stretching/contracting uniformly over x or y, or
rotating the whole drawing, are not satisfactory.
So the question is: does any kind soul know of an algorithm for
removing such distortion?  In particular, if I have three sets of
points
Reference(x,y) (the known true values)
DistortedReference(x,y) (the same points, with known errors)
DistortedData(x,y) (other points, with unknown errors)
what function of Reference and Distorted could I apply to
DistortedData to remove the errors.
I suspect the problem could be solved by treating the distorted
reference points as resulting from the projection of a "bumpy" 3d
surface, solving for the surface and then "flattening" it to remove
the errors in the other data points.
Any kind and informed soul out there have any ideas, or better yet,
pointers to treatments of the same or similar problems?
Thanks,
Earl
From: havardn@edb.tih.no (Haavard Nesse,o92a)
Subject: HELP!!! GRASP
Reply-To: havardn@edb.tih.no
Posting-Front-End: Winix Conference v 92.05.15  1.20 (running under MS-Windows)
Lines: 13
Hi!
Could anyone tell me if it's possible to save each frame
of a .gl (grasp) animation to .gif, .jpg, .iff or any other
picture formats.
(I've got some animations that I'd like to transfer to my Amiga)
I really hope that someone can help me.
Cheers
Haavard Nesse - Trondheim College of Engineering, Trondheim, Norway
From: lioness@maple.circa.ufl.edu
Subject: Re: comp.graphics.programmer
Organization: Center for Instructional and Research Computing Activities
Lines: 68
Reply-To: LIONESS@ufcc.ufl.edu
NNTP-Posting-Host: maple.circa.ufl.edu
In article <andreasa.157.735211806@dhhalden.no>, andreasa@dhhalden.no (ANDREAS ARFF) writes:
|>Hello netters
|>
|>Sorry, I don't know if this is the right way of doing this kind of thing,
|>probably should be a CFV, but since I don't have tha ability to create a
|>news group myself, I just want to start the discussion.
|>
|>I enjoy reading c.g very much, but I often find it difficult to sort out what
|>I'm interested in. Everything from screen-drivers, graphics cards, graphics
|>programming and graphics programs are discused here. What I'd like is a
|>comp.graphics.programmer news group.
|>What do you other think.
This sounds wonderful, but it seems no one either wants to spend time doing
this, or they don't have the power to do so.  For example, I would like
to see a comp.graphics architecture like this:
comp.graphics.algorithms.2d
comp.graphics.algorithms.3d
comp.graphics.algorithms.misc
comp.graphics.hardware
comp.graphics.misc
comp.graphics.software/apps
However, that is almost overkill.  Something more like this would probably
make EVERYONE a lot happier:
comp.graphics.programmer
comp.graphics.hardware
comp.graphics.apps
comp.graphics.misc
It would be nice to see specialized groups devote to 2d, 3d, morphing,
raytracing, image processing, interactive graphics, toolkits, languages,
object systems, etc. but these could be posted to a relevant group or
have a mailing list organized.
That way when someone reads news they don't have to see these subject
headings, which are rather disparate:
System specific stuff ( should be under comp.sys or comp.os.???.programmer ):
"Need help programming GL"
"ModeX programming information?"
"Fast sprites on PC"
Hardware technical stuff:
"Speed of Weitek P9000"
"Drivers for SpeedStar 24X"
Applications oriented stuff:
"VistaPro 3.0 help"
"How good is 3dStudio?"
"Best image processing program for Amiga"
Programming oriented stuff:
"Fast polygon routine needed"
"Good morphing alogirhtm wanted"
"Best depth sort for triangles?"
"Which C++ library to get?"
I wish someone with the power would get a CFD and then a CFV going on
this stuff....this newsgroup needs it.
Brian
From: sean@whiting.mcs.com (Sean Gum)
Subject: Re: CView answers
Organization: -*-  Whiting Corporation, Harvey, Illinois  -*-
X-Newsreader: Tin 1.1 PL4
Lines: 23
bryanw@rahul.net (Bryan Woodworth) writes:
: In <1993Apr16.114158.2246@whiting.mcs.com> sean@whiting.mcs.com (Sean Gum) writes:
:
: >A stupid question, but what will CView run on and where can I get it? I
: >am still in need of a GIF viewer for Linux. (Without X-Windows.)
: >Thanks!
: >
:
: Ho boy. There is no way in HELL you are going to be able to view GIFs or do
: any other graphics in Linux without X windows!  I love Linux because it is
: so easy to learn..  You want text?  Okay.   Use Linux. You want text AND
: graphics?  Use Linux with X windows.  Simple.  Painless.  REQUIRED to have
: X Windows if you want graphics!  This includes fancy word processors like
: doc, image viewers like xv, etc.
:
Ummm, I beg to differ. A kind soul sent me a program called DPG-VIEW that
will do exactly what I want, view GIF images under Linux without X-Windows.
And, it does support all the way up to 1024x768. The biggest complaint I
have is it is painfully SLOW. It takes about 1 minute to display an image.
I am use to CSHOW under DOS which takes a split second. Any idea why it
is so slow under Linux? Anybody have anything better? Plus, anybody have
the docs to DPG-View? Thanks!
From: N020BA@tamvm1.tamu.edu
Subject: Re: Help! Need 3-D graphics code/package for DOS!!!
Organization: Texas A&M University
Lines: 32
NNTP-Posting-Host: tamvm1.tamu.edu
In article <1993Apr19.101747.22169@ugle.unit.no>
razor@swix.nvg.unit.no (Runar Jordahl) writes:
>
>N020BA@tamvm1.tamu.edu wrote:
>:     Help!! I need code/package/whatever to take 3-D data and turn it into
>: a wireframe surface with hidden lines removed. I'm using a DOS machine, and
>: the code can be in ANSI C or C++, ANSI Fortran or Basic. The data I'm using
>: forms a rectangular grid.
>: is a general interest question.
>:    Thank you!!!!!!
I'm afraid your reply didn't get thru. I do appreciate you trying to
reply, however. Please try again.
From: rdd@uts.ipp-garching.mpg.de (Reinhard Drube)
Subject: Re: Postscript drawing prog
Organization: Rechenzentrum der Max-Planck-Gesellschaft in Garching
Lines: 17
In article <C5ECnn.7qo@mentor.cc.purdue.edu>, nish@cv4.chem.purdue.edu (Nishantha I.) writes:
|> 	Could somebody let me know of a drawing utility that can be
|> used to manipulate postscript files.I am specifically interested in
|> drawing lines, boxes and the sort on Postscript contour plots.
|> 	I have tried xfig and I am impressed by it's features. However
|> it is of no use since I cannot use postscript files as input for the
|> programme.Is there a utility that converts postscript to xfig format?
|> 	Any help would be greatly appreciated.
|> 				Nishantha
I think you are too optimistic! PostScript is a very big language and
so the fig format can not be able to be an interpreter of ANY arbitrary
ps code. The only program I know to manipulate PostScript files is
IslandDraw.
I for myself use xfig and include the PostScript files (converted to
epsi format). Small changes then are possible (erasing some letters,
adding text and so on).
Reinhard
From: arp@cooper!osd (Andrew Pinkowitz)
Subject: SIGGRAPH -- Conference on Understanding Images
Keywords: graphics animation nyc acm siggraph
Organization: Online Systems Development ( NY, NY)
Lines: 140
======================================================================
NYC ACM/SIGGRAPH: UNDERSTANDING IMAGES
======================================================================
SUBJECT:
Pace University/SIGGRAPH Conference on UNDERSTANDING IMAGES
===========================================================
The purpose of this conference is to bring together a breadth of
disciplines, including the physical, biological and computational
sciences, technology, art, psychology, philosophy, and education,
in order to define and discuss the issues essential to image
understanding within the computer graphics context.
FEATURED TOPICS INCLUDE:
Psychology/Perception
Image Analysis
Design
Text
Sound
Philosophy
DATE:  Friday & Saturday, 21-22 May 1993
TIME:  9:00 am - 6:00 pm
PLACE:  The Pace Downtown Theater
One Pace Plaza
(on Spruce Street between Park Row & Gold Street)
NY, NY 10038
FEES:
PRE-REGISTRATION (Prior to 1 May 1993):
Members         $55.00
Non-Members     $75.00
Students        $40.00 (Proof of F/T Status Required)
REGISTRATION (After 1 May 1993 or On-Site):
All Attendees   $95.00
(Registration Fee Includes Brakfast, Breaks & Lunch)
SEND REGISTRATION INFORMATION & FEES TO:
Dr. Francis T. Marchese
Computer Science Department
NYC/ACM SIGGRAPH Conference
Pace University
1 Pace Plaza (Room T-1704)
New York NY 10036
voice: (212) 346-1803   fax: (212) 346-1933
email: MARCHESF@PACEVM.bitnet
======================================================================
REGISTRATION INFORMATION:
Name _________________________________________________________________
Title ________________________________________________________________
Company ______________________________________________________________
Street Address _______________________________________________________
City ________________________________State____________Zip_____________
Day Phone (___) ___-____    Evening Phone (___) ___-____
FAX Phone (___) ___-____    Email_____________________________________
======================================================================
DETAILED DESCRIPTION:
=====================
Artists, designers, scientists, engineers and educators share the
problem of moving information from one mind to another.
Traditionally, they have used pictures, words, demonstrations,
music and dance to communicate imagery.  However, expressing
complex notions such as God and infinity or a seemingly well
defined concept such as a flower can present challenges which far
exceed their technical skills.
The explosive use of computers as visualization and expression
tools has compounded this problem.  In hypermedia, multimedia and
virtual reality systems vast amounts of information confront the
observer or participant.  Wading through a multitude of
simultaneous images and sounds in possibly unfamiliar
representions, a confounded user asks: "What does it all mean?"
Since image construction, transmission, reception, decipherment and
ultimate understanding are complex tasks, strongly influenced by
physiology, education and culture; and, since electronic media
radically amplify each processing step, then we, as electronic
communicators, must determine the fundamental paradigms for
composing imagery for understanding.
Therefore, the purpose of this conference is to bring together a
breadth of disciplines, including, but not limited to, the
physical, biological and computational sciences, technology, art,
psychology, philosophy, and education, in order to define and
discuss the issues essential to image understanding within the
computer graphics context.
FEATURED SPEAKERS INCLUDE:
Psychology/Perception:
Marc De May, University of Ghent
Beverly J. Jones, University of Oregon
Barbara Tversky, Standfor University
Michael J. Shiffer, MIT
Tom Hubbard, Ohio State University
Image Analysis:
A. Ravishankar Rao, IBM Watson Research Center
Nalini Bhusan, Smith College
Xiaopin Hu, University of Illinois
Narenda Ahuja, University of Illinois
Les M. Sztander, University of Toledo
Design:
Mark Bajuk, University of Illinois
Alyce Kaprow, MIT
Text:
Xia Lin, Pace University
John Loustau, Hunter College
Jong-Ding Wang, Hunter College
Judson Rosebush, Judson Rosebush Co.
Sound:
Matthew Witten, University of Texas
Robert Wyatt, Center for High Performance Computing
Robert S. Williams, Pace University
Rory Stuart, NYNEX
Philosophy
Michael Heim, Education Foundation of DPMA
======================================================================
From: sgoldste@aludra.usc.edu (Fogbound Child)
Subject: Re: "Fake" virtual reality
Organization: University of Southern California, Los Angeles, CA
Lines: 31
NNTP-Posting-Host: aludra.usc.edu
Mike_Peredo@mindlink.bc.ca (Mike Peredo) writes:
>The most ridiculous example of VR-exploitation I've seen so far is the
>"Virtual Reality Clothing Company" which recently opened up in Vancouver. As
>far as I can tell it's just another "chic" clothes spot. Although it would be
>interesting if they were selling "virtual clothing"....
>E-mail me if you want me to dig up their phone # and you can probably get
>some promotional lit.
I understand there have been a couple of raves in LA billing themselves as
"Virtual Reality" parties. What I hear they do is project .GIF images around
on the walls, as well as run animations through a Newtek Toaster.
Seems like we need to adopt the term Really Virtual Reality or something, except
for the non-immersive stuff which is Virtually Really Virtual Reality.
etc.
>MP
>(8^)-
___Samuel___
--
_________Pratice Safe .Signature! Prevent Dangerous Signature Virii!_______
Guildenstern: Our names shouted in a certain dawn ... a message ... a
summons ... There must have been a moment, at the beginning,
where we could have said -- no. But somehow we missed it.
From: sloan@cis.uab.edu (Kenneth Sloan)
Subject: Re: Removing Distortion From Bitmapped Drawings?
Organization: CIS, University of Alabama at Birmingham
Lines: 135
In article <1993Apr19.141034.24731@sctc.com> boebert@sctc.com (Earl Boebert) writes:
>Let's say you have a scanned image of a line drawing; in this case a
>boat, but it could be anything.  On the drawing you have a set of
>reference points whose true x,y positions are known.
>
>Now you digitize the drawing manually (in this case, using Yaron
>Danon's excellent Digitize program).  That is, you use a program which
>converts cursor positions to x,y and saves those values when you click
>the mouse.
>
>Upon digitizing you notice that the reference point values that come
>out of the digitizing process differ in small but significant ways
>from the known true values.  This is understandable because the
>scanned drawing is a reproduction of the original and there are
>successive sources of distortion such as differential expansion and
>contraction of paper, errors introduced in the printing process,
>scanner errors and what have you.
>
>The errors are not uniform over the entire drawing, so "global"
>adjustments such as stretching/contracting uniformly over x or y, or
>rotating the whole drawing, are not satisfactory.
>
>So the question is: does any kind soul know of an algorithm for
>removing such distortion?  In particular, if I have three sets of
>points
>
>Reference(x,y) (the known true values)
>
>DistortedReference(x,y) (the same points, with known errors)
>
>DistortedData(x,y) (other points, with unknown errors)
>
>what function of Reference and Distorted could I apply to
>DistortedData to remove the errors.
>
>I suspect the problem could be solved by treating the distorted
>reference points as resulting from the projection of a "bumpy" 3d
>surface, solving for the surface and then "flattening" it to remove
>the errors in the other data points.
It helps to have some idea of the source of the distortion - or at least
a reasonable model of the class of distortion.  Below is a very short
description of the process which we use; if you have further questions,
feel free to poke me via e-mail.
================================================================
*ASSUME: locally smooth distortion
0) Compute the Delaunay Triangulation of your (x,y) points.  This
defines the set of neighbors for each point.  If your data are
not naturally convex, you may have very long edges on the convex hull.
Consider deleting these edges.
1) Now, there are two goals:
a) move the DistortedData(x,y) to the Reference(x,y)
b) keep the Length(e) (as measured from the current (x,y)'s)
as close as possible to the DigitizedLength(e) (as measured
using the digitized (x,y)'s).
2) For every point, compute a displacement based on a) and b).  For
example:
a) For (x,y) points for which you know the Reference(x,y), you
can move alpha0*(Reference(x,y) - Current(x,y)).   This will
slowly move the DistortedReference(x,y) towards the
Reference(x,y).
b) For all other points, examine the current length of each edge.
For each edge, compute a displacement which would make that edge
the correct length (where "correct" is the DigitizedLength).
Take the vector sum of these edge displacements, and move the
point alpha1*SumOfEdgeDisplacements.  This will keep the
triangulated mesh consistent with your Digitized mesh.
3) Iterate 2) until you are happy (for example, no point moves very much).
alpha0 and alpha1 need to be determined by experimentation.   Consider
how much you believe the Reference(x,y) - i.e., do you absolutely insist
on the final points exactly matching the References, or do you want to
balance some error in matching the Reference against changes in length
of the edges.
WARNING: there are a couple of geometric invariants which must be
observed (essentially, you can't allow the convex hull to change, and
you can't allow triangles to "fold over" neighboring triangles.  Both of
these can be handled either by special case checks on the motion of
individual points, or by periodically re-triangulating the points (using
the current positions - but still calculating DigitizedLength from the
original positions.  When we first did this, the triangulation time was
prohibitive, so we only did it once.  If I were motivated to try and
change code that has been working in production mode for 5 years, I
*might* go back and re-triangulate on every iteration.  If you have more
compute power than you know what to do with, you might consider having
every point interact with every other point....but first read up on
linear solutions to the n-body problem.
There are lots of papers in the last 10 years of SIGGRAPH proceedings on
springs, constraints,  and energy calculations which are relevant.  The
above method is described, in more or less detail in:
@inproceedings{Sloan86,
author="Sloan, Jr., Kenneth R. and David Meyers and Christine A.~Curcio",
title="Reconstruction and Display of the Retina",
booktitle="Proceedings: Graphics Interface '86 Vision Interface '86",
address="Vancouver, Canada",
pages="385--389",
month="May",
year=1986  }
@techreport{Curcio87b,
author="Christine A.~Curcio and Kenneth R.~Sloan and David Meyers",
title="Computer Methods for Sampling, Reconstruction, Display, and
Analysis of Retinal Whole Mounts",
number="TR 87-12-03",
institution="Department of Computer Science, University of Washington",
address="Seattle, WA",
month="December",
year=1987  }
@article{Curcio89,
author="Christine A.~Curcio and Kenneth R.~Sloan and David Meyers",
title="Computer Methods for Sampling, Reconstruction, Display, and
Analysis of Retinal Whole Mounts",
journal="Vision Research",
volume=29,
number=5,
pages="529--540",
year=1989  }
--
Kenneth Sloan                   Computer and Information Sciences
sloan@cis.uab.edu               University of Alabama at Birmingham
(205) 934-2213                  115A Campbell Hall, UAB Station
(205) 934-5473 FAX              Birmingham, AL 35294-1170
From: rws@cs.arizona.edu (Ronald W. Schmidt)
Subject: outlining of spline surface
Keywords: spline rasterization
Lines: 38
About a year ago I started work on a problem that appeared to
be very simple and turned out to be quite difficult.  I am wondering if
anyone on the net has seen this problem and (hopefully) some published
solutions to it.
The problem is to draw an outline of a surface defined by two
roughly parallel cubic splines.  For inputs the problem essentially
starts with two sets of points where each set of points is on the
edge of an object which we treat as two dimensional, i.e. only extant
between the edges, but which exists in three dimensional space.  To draw
the object we
1) fit a cubic spline through the points.  Each spline is effectively
computed as a sequence of line segments approximating the
curve.  Each spline has an equal number of segments.  We assume
that the nth segment along each spline is roughly, but not
exactly, the same distance along each spline by any reasonable
measure.
2) Take each segment (n) along each spline and match it to the nth segment
of the opposing spline.  Use the pair of segments to form two
triangles which will be filled in to color the surface.
3) Depth sort the triangles
4) Take each triangle in sorted order, project onto a 2D pixmap, draw
and color the triangle.  Take the edge of the triangle that is
along the edge of the surface and draw a line along that edge
colored with a special "edge color"
It is the edge coloring in step 4 that is at the heart of the
problem.  The idea is to effectively outline the edge of the surface.
The net result however generally has lots of breaks and gaps in
the edge of the surface.  The reasons for this are fairly complicated.
They involve both rasterization problems and problems resulting
from the projecting the splines.  If anything about this problem
sounds familiar we would appreciate knowing about other work in this
area.
-Thanks
From: sp1marse@kristin (Marco Seirio)
Subject: Flat globe
Lines: 13
X-Newsreader: Tin 1.1 PL3
Does anybody have an algorithm for "flattening" out a globe, or any other
parametric surface, that is definied parametrically.
That is, I would like to take a sheet of paper and a knife and to be
able to calculate how I must cut in the paper so I can fold it to a
globe (or any other object).
Marco Seirio - In real life sp1marse@caligula.his.se
From: stgprao@st.unocal.COM (Richard Ottolini)
Subject: Re: images of earth
Organization: Unocal Corporation
Lines: 16
In article <1993Apr19.144533.6779@cs.ruu.nl> clldomps@cs.ruu.nl (Louis van Dompselaar) writes:
>In <C5q0HK.KoD@hawnews.watson.ibm.com> ricky@watson.ibm.com (Rick Turner) writes:
>
>>Look in the /pub/SPACE directory on ames.arc.nasa.gov - there are a number
>>of earth images there. You may have to hunt around the subdirectories as
>>things tend to be filed under the mission (ie, "APOLLO") rather than under
>>the image subject.
>>
>For those of you who don't need 24 bit, I got a 32 colour Amiga IFF
>of a cloudless Earth (scanned). Looks okay when mapped on a sphere.
>E-mail me and I'll send it you...
Beware.  There is only one such *copyrighted* image and the company
that generated is known to protect that copyright.  That image took
hundreds of man-hours to build from the source satellite images,
so it is unlikely that competing images will appear soon.
From: tdawson@engin.umich.edu (Chris Herringshaw)
Subject: Newsgroup Split
Organization: University of Michigan Engineering, Ann Arbor
Lines: 11
Distribution: world
NNTP-Posting-Host: po.engin.umich.edu
Concerning the proposed newsgroup split, I personally am not in favor of
doing this.  I learn an awful lot about all aspects of graphics by reading
this group, from code to hardware to algorithms.  I just think making 5
different groups out of this is a wate, and will only result in a few posts
a week per group.  I kind of like the convenience of having one big forum
for discussing all aspects of graphics.  Anyone else feel this way?
Just curious.
Daemon
From: thinman@netcom.com (Technically Sweet)
Subject: Re: Surface intersections
Organization: International Foundation for Internal Freedom
Lines: 19
sp1marse@lina (Marco Seirio) writes:
>I have a problem with intersections between two surfaces.
>Does anybody have a easy to understand algorithm for that or maybe
>even C source??
>      Marco Seirio - In real life sp1marse@caligula.his.s
You also have a severe problem with news headers.
FTP to cs.purdue.edu:pub/vanecek and pull proxima.tar.Z
and proxima.ps.Z.  Tres spif.
--
Lance Norskog
thinman@netcom.com
Data is not information is not knowledge is not wisdom.
From: ARowatt@massey.ac.nz (A.J. Rowatt)
Subject: Page flipping in VGA 320x200x256 mode.
Organization: Massey University, Palmerston North, New Zealand
X-Reader: NETNEWS/PC Version 2c
Lines: 12
Help!
How do you write to the second bank/page of memory when in VGA
320x200x256 colour mode?. ie: to perform page flipping animation
and buffering of the screen.
I have tried using the Map Mask Registers, but this does not
perform the required task (Although it does do something).
Note: It *must* be able to work on a standard VGA (ie: not
necessarily a SVGA card).
Many thanx in advance...
Andrew
From: sasst11+@pitt.edu (Scott A Snowiss)
Subject: IMAGINE
Organization: University of Pittsburgh
Lines: 16
Hello again netters,
I finally received the information about Imagine for the PC.  They are presently shipping Version 2.0 of the software and will release Version 3.0 in the first quarter of 1993 (or so they say).  The upgrade from 2.0 to 3.0 is $100.00.  To purchase Imagine 2.0, it costs $495.00 or if you are upgrading from another eligible (call them for info) modeler, it is only $200.00 plus shipping & handling.   It requires a PC with 4 Megs a Math Coprocessor, and Dos 5.0 or up and a Microsoft Mouse and SVGA card.
Thanks for all your replies about the product.  I have received many contrasting replies, but once I scrounge the money together, I think I will take the plunge.  Thanks again.
Here is the info for Impulse if you want to find out more or get the sheet they sent.
Impulse Inc.
8416 Xerxes Avenue North
Minneapolis, MN 55444
1-800-328-0184
Thanks again for all your replies.
Scott
--
Scott Snowiss
sasst11+@.pitt.edu
--Turn on...Jack in...Jack out...
From: dave.mikelson@almac.co.uk (Dave Mikelson)
Subject: Re: PCX
Distribution: world
Organization: Almac BBS Ltd. +44 (0)324 665371
Reply-To: dave.mikelson@almac.co.uk (Dave Mikelson)
Lines: 22
To: ad994@Freenet.carleton.ca
JW> 1) Where is there a book or code that will teach me how
JW> to read and write pcx,dbf,and gif files?
JW> 2) How do I access the extra ram on my paradise video board
JW> so I can do paging in the higher vga modes ie: 320x200x256
JW> 800x600x256
JW> 3) anybody got a line on a good book to help answer these question?
Here are some that I have that are very good:
Graphics File Formats, Kay and Levine, ISBN 0-8306-3059-7
Supercharged Bitmapped Graphics, Rimmer, ISBN 0-8306-3788-5
Programmer's Guide to the EGA and VGA Cards, Ferraro,
ISBN 0-201-57025-4 (has a whole chapter on Paradise SVGA)
Dave
---
. DeLuxe./386 1.12 #8993 .
From: 235wardell@gw.wmich.edu
Subject: VGA Passthrough Cables!
Organization: Western Michigan University
Lines: 14
Does anyone know the phone number to a place where i can get
a VGA passthrough?
I want to hook up my VGA card to my XGA card (whcih you can can).
All I need is the cable that connects them.  It is the same type of
cable that you would connect from your VGA card to say a Video Blaster
or something.
Thanks.
-Brad
From: ferdinan@oeinck.waterland.wlink.nl (Ferdinand Oeinck)
Subject: detecting double points in bezier curves
Organization: My own node in Groningen, NL.
Lines: 6
I'm looking for any information on detecting and/or calculating a double
point and/or cusp in a bezier curve.
An algorithm, literature reference or mail about this is very appreciated,
Ferdinand.
From: apd2c@Virginia.EDU ("Andrew Paul Dickens")
Subject: Re: computer graphics to vcr?
Organization: University of Virginia
Lines: 16
Getting an image from a computer monitor to a videotape
is harder than it looks.  The standard VGA and EGA outputs are
very different than the NTSC format used by televisions.  While
there is equipment that will do the conversion, it is hard to
get your hands on and costs quite a bit.
If you have access to an Amiga computer, that has an
NTSC output, you can transfer certain types of graphic files by
modem and tape them from the NTSC output.  Unfortunately, this
would be frame-by-frame and would lead to unbelievably scratchy
animation unless you had a good Amiga animation program.
Otherwise, see if your local public access cable
station has equipment that you can use.
From: ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado)
Subject: Re: Newsgroup Split
Disclaimer: This posting represents the poster's views, not necessarily those of IBM
Nntp-Posting-Host: rs43873.rchland.ibm.com
Organization: IBM Rochester
Lines: 21
In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
|> Concerning the proposed newsgroup split, I personally am not in favor of
|> doing this.  I learn an awful lot about all aspects of graphics by reading
|> this group, from code to hardware to algorithms.  I just think making 5
|> different groups out of this is a wate, and will only result in a few posts
|> a week per group.  I kind of like the convenience of having one big forum
|> for discussing all aspects of graphics.  Anyone else feel this way?
|> Just curious.
|>
|>
|> Daemon
|>
I agree with you.
--------------------------------------
Raist  New A1200 owner   320<->1280 in x, 200<->600 in y
in 256,000+ colors from a 24-bit palette.  **I LOVE IT!**<- New Low Fat .sig
*don't e-mail me* -> I don't have a valid address nor can I send e-mail
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Ellipse Again
Organization: University of Southern California, Los Angeles, CA
Lines: 39
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
Keywords: ellipse
Hi! Everyone,
Because no one has touched the problem I posted last week, I guess
my question was not so clear. Now I'd like to describe it in detail:
The offset of an ellipse is the locus of the center of a circle which
rolls on the ellipse. In other words, the distance between the ellipse
and its offset is same everywhere.
This problem comes from the geometric measurement when a probe is used.
The tip of the probe is a ball and the computer just outputs the
positions of the ball's center. Is the offset of an ellipse still
an ellipse? The answer is no! Ironically, DMIS - an American Indutrial
Standard says it is ellipse. So almost all the software which was
implemented on the base of DMIS was wrong. The software was also sold
internationaly. Imagine, how many people have or will suffer from this bug!!!
How many qualified parts with ellipse were/will be discarded? And most
importantly, how many defective parts with ellipse are/will be used?
I was employed as a consultant by a company in Los Angeles last year
to specially solve this problem. I spent two months on analysis of this
problem and six months on programming. Now my solution (nonlinear)
is not ideal because I can only reconstruct an ellipse from its entire
or half offset. It is very difficult to find the original ellipse from
a quarter or a segment of its offset because the method I used is not
analytical. I am now wondering if I didn't touch the base and make things
complicated. Please give me a hint.
I know you may argue this is not a CG problem. You are right, it is not.
However, so many people involved in the problem "sphere from 4 poits".
Why not an ellipse? And why not its offset?
Please post here and let the others share our interests
(I got several emails from our netters, they said they need the
summary of the answers).
Yeh
USC
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Newsgroup Split
Organization: University of Southern California, Los Angeles, CA
Lines: 18
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
|> Concerning the proposed newsgroup split, I personally am not in favor of
|> doing this.  I learn an awful lot about all aspects of graphics by reading
|> this group, from code to hardware to algorithms.  I just think making 5
|> different groups out of this is a wate, and will only result in a few posts
|> a week per group.  I kind of like the convenience of having one big forum
|> for discussing all aspects of graphics.  Anyone else feel this way?
|> Just curious.
|>
|>
|> Daemon
|>
I agree with you. Of cause I'll try to be a daemon :-)
Yeh
USC
From: jmuller@ic.sunysb.edu (John S Muller)
Subject: WAYNE RIGBY
Organization: State University of New York at Stony Brook
Lines: 20
Distribution: world
NNTP-Posting-Host: csws18.ic.sunysb.edu
Sorry to clog up the news group with this message.
Wayne Rigby, I have the info you requested, but for some
reason I can not mail it to you.  Please contact me!
Send email address.
j
--
-------------------------------------------------------------------------------
"No Real Programmer can function without caffeine" - Zen + Art of Internet
_/_/_/_/_/  _/_/_/_/_/  _/_/  _/_/        John S. Muller
_/      _/          _/  _/  _/         muller@diego.llnl.gov
_/      _/_/_/_/_/  _/  _/  _/          muller@sisal.llnl.gov
_/   _/              _/  _/      _/           jmuller@libserv1.ic.sunysb.edu
_/_/_/      _/_/_/_/_/  _/      _/
"You are not drunk until you have to grab the grass,
to keep the grass from falling off the earth" - Some Stupid Comedian
-------------------------------------------------------------------------------
From: rknight@stiatl.salestech.com (Ray Knight)
Subject: Re: CView answers
Keywords: Stupid Programming
Organization: Sales Technologies, Inc.
Lines: 19
uk02183@nx10.mik.uky.edu (bryan k williams) writes:
>re: majority of users not readding from floppy.
>Well, how about those of us who have 1400-picture CD-ROMS and would like to use
>CVIEW because it is fast and it works well, but can't because the moron lacked
>the foresight to create the temp file in the program's path, not the current
>didrectory?
Actually the most flexible way to create temp files is to check for a TEMP or
TMP environment variable and create the files on the drive and directory pointedto by the variable.  This is pretty much a standard for DOS, Windows and OS/2
applications.
--
What I have to say is my own opinion and has no bearing on any other person or
organization including my employer.
-----------------------------------------------------------------------------
rknight@salestech.com        (404) 841-5316           Sales Technologies, Inc.
From: ani@ms.uky.edu (Aniruddha B. Deglurkar)
Subject: help: Splitting a trimming region along a mesh
Organization: University Of Kentucky, Dept. of Math Sciences
Lines: 28
Hi,
I have a problem, I hope some of the 'gurus' can help me solve.
Background of the problem:
I have a rectangular mesh in the uv domain, i.e  the mesh is a
mapping of a 3d Bezier patch into 2d. The area in this domain
which is inside a trimming loop had to be rendered. The trimming
loop is a set of 2d Bezier curve segments.
For the sake of notation: the mesh is made up of cells.
My problem is this :
The trimming area has to be split up into individual smaller
cells bounded by the trimming curve segments. If a cell
is wholly inside the area...then it is output as a whole ,
else it is trivially rejected.
Does any body know how thiss can be done, or is there any algo.
somewhere for doing this.
Any help would be appreciated.
Thanks,
Ani.
--
To get irritated is human, to stay cool, divine.
From: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
Subject: Re: detecting double points in bezier curves
Reply-To: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
Organization: Kubota Pacific Computers Inc.
Lines: 20
In article <ia522B1w165w@oeinck.waterland.wlink.nl>, ferdinan@oeinck.waterland.wlink.nl (Ferdinand Oeinck) writes:
|> I'm looking for any information on detecting and/or calculating a double
|> point and/or cusp in a bezier curve.
|>
|> An algorithm, literature reference or mail about this is very appreciated,
There was a very useful article in one of the 1989 issues of
Transactions On Graphics. I believe Maureen Stone was one of
the authors. Sorry not to be more specific. I don't have the
reference here with me.
The article actually was more general than this, giving a way to decide
whether a given (cubic) Bezier curve contains cusps, intersection points
or whatever wierdness. The same treatment is also available in SIGGRAPH 89
course notes for the course called "Math for Siggraph" or something like
that.
--
dr memory
jbulf@kpc.com
Subject: Re: Video in/out
From: djlewis@ualr.edu
Organization: University of Arkansas at Little Rock
Nntp-Posting-Host: athena.ualr.edu
Lines: 40
In article <1993Apr18.080719.4773@nwnexus.WA.COM>, mscrap@halcyon.com (Marta Lyall) writes:
> Organization: "A World of Information at your Fingertips"
> Keywords:
>
> In article <628@toontown.columbiasc.ncr.com> craig@toontown.ColumbiaSC.NCR.COM (Craig S. Williamson) writes:
>>
>>I'm getting ready to buy a multimedia workstation and would like a little
>>advice.  I need a graphics card that will do video in and out under windows.
>>I was originally thinking of a Targa+ but that doesn't work under Windows.
>>What cards should I be looking into?
>>
>>Thanks,
>>Craig
>>
>>--
>>                                             "To forgive is divine, to be
>>-Craig Williamson                              an airhead is human."
>> Craig.Williamson@ColumbiaSC.NCR.COM                -Balki Bartokomas
>> craig@toontown.ColumbiaSC.NCR.COM (home)                  Perfect Strangers
>
>
> Craig,
>
> You should still consider the Targa+. I run windows 3.1 on it all the
> time at work and it works fine. I think all you need is the right
> driver.
>
> Josh West
> email: mscrap@halcyon.com
>
AT&T also puts out two new products for windows, Model numbers elude me now,
a 15 bit video board with framegrabber and a 16bit with same. Yesterday I
was looking at a product at a local Software ETC store. Media Vision makes
a 15bit (32,768 color) frame capture board that is stand alone and doesnot
use the feature connector on your existing video card. It claims upto 30 fps
live capture as well as single frame from either composite NTSC or s-video
in and out.
Don Lewis
<djlewis@ualr.edu>
From: eylerken@stein.u.washington.edu (Ken Eyler)
Subject: stand alone editing suite.
Article-I.D.: shelley.1qvkaeINNgat
Distribution: world
Organization: University of Washington, Seattle
Lines: 12
NNTP-Posting-Host: stein.u.washington.edu
I need some help.  We are upgrading our animation/video editing stand. We
are looking into the different type of setups for A/B roll and a cuts only
station.  We would like this to be controlled by a computer ( brand doesnt matter but maybe MAC, or AMIGA).  Low end to high end system setups would be very
helpful. If you have a system or use a system that might be of use, could you
mail me your system requirements, what it is used for, and all the hardware and
software that will be necessary to set the system up.  If you need more
info, you  can mail me at   eylerken@u.washington.edu
thanks in advance.
:ken
:eylerken@u.washington.edu
From: CBW790S@vma.smsu.edu.Ext (Corey Webb)
Subject: Re: HELP!!! GRASP
Organization: SouthWest Mo State Univ
Lines: 29
NNTP-Posting-Host: vma.smsu.edu
X-Newsreader: NNR/VM S_1.3.2
In article <1993Apr19.160944.20236W@baron.edb.tih.no>
havardn@edb.tih.no (Haavard Nesse,o92a) writes:
>
>Could anyone tell me if it's possible to save each frame
>of a .gl (grasp) animation to .gif, .jpg, .iff or any other
>picture formats.
>
If you have the GRASP animation system, then yes, it's quite easy.
You simply use GLIB to extract the image (each "frame" in a .GL is
actually a complete .PCX or .CLP file), then use one of MANY available
utilities to convert it.  If you don't have the GRASP package, I'm afraid
I can't help you.  Sorry.
By the way, before you ask, GRASP (GRaphics Animation System for
Professionals) is a commercial product that sells for just over US$300
from most mail-order companies I've seen.  And no, I don't have it.  :)
Corey Webb
____________________________________________________________________
|        Corey Webb       | "For in much wisdom is much grief, and   |
|   cbw790s@vma.smsu.edu  |  he that increaseth knowledge increaseth |
|  Bitnet: CBW790S@SMSVMA |  sorrow."           -- Ecclesiastes 1:18 |
|-------------------------|------------------------------------------|
| The "S" means I am only |    "But first, are you experienced?"     |
| speaking for myself.    |                  -- Jimi Hendrix         |
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Boeing
Lines: 30
In article <1993Apr17.092051.19814@kth.se> d88-jwa@hemul.nada.kth.se (Jon Wtte) writes:
>In <Z2442B4w164w@cellar.org> tsa@cellar.org (The Silent Assassin) writes:
>
>>> I'm building a CAD package and need a 3D graphics library that can handle
>>> some rudimentry tasks, such as hidden line removal, shading, animation, etc.
>>>
>>> Can you please offer some recommendations?
>
>I think APDA has something called MacWireFrame which is a full
>wire-frame (and supposedly hidden-line removal) library.
>I think it weighs in at $99 (but I've been wrong on an order
>of magnitude before)
>
I spoke with the author of MacWireFrame earlier today. The cost is $299, but there
are no license royalties. His name is Eric Johnson in Sacramento, CA phone
916/737-1550. He doesn't have email. Very nice guy... very knowledgeable about
graphics. Seems like he may have a decent package. It's an Object Pascal Framework
that supposedly has a fairly complete set of geometry creation classes.
I'm going to check it out and see if it's got what I need for my CAD package.
I also found another package: 3D Graphic Tools by Micro System Options in Seattle.
The number is: 206/868-5418, also no email. The package is strong at ray tracing,
I'm not too sure about its geometry creation tools. I also need to look into this
package some more. I also spoke with the author, Mark Owens, another nice
guy that seems to know his business. The price is $249, no royalties.
BobC
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Boeing
Lines: 35
In article <1qnm6fINN8tr@tamsun.tamu.edu> brentb@tamsun.tamu.edu (Brent) writes:
>tsa@cellar.org (The Silent Assassin) writes:
>>rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter) writes:
>>
>>> Can you please offer some recommendations?
>>
>>It's really not that hard to do.  There are books out there which explain
>>everything, and the basic 3D functions, translation, rotation, shading, and
>>hidden line removal are pretty easy.  I wrote a program in a few weeks witht
>>he help of a book, and would be happy to give you my source.
>
>I think he wanted to avoid reinventing the wheel.
Yes, I want to concentrate on other development issues - I've created graphics
libraries before, it's too time consuming... life's too short!
>>	Also, Quickdraw has a lot of 3D functions built in, and Think pascal
>>can access them, and I would expect that THINK C could as well.  If you can
>>find out how to use the Quickdraw graphics library, it would be an excellent
>>choice, since it has a lot of stuff, and is built into the Mac, so should be
>>fast.
>
>Just to clarify, the 3D routines that are mentioned in various places
>on the mac are in a libray, not the ROM of the mac.  A few years ago before
>I knew anything about implementing graphics, I came across a demo of the
>Apple GrafSys3D library and it actually did a lot.  However, it is quite
>limited in the sense that it's a low-level 3D library; your code still has
>to plot individual points, draw each line, etc ad nauseum.  It has nothing
>on GL, for example, where you can handle objects.
Thanks for the clarification... Before posting my original request I had looked
into the Mac's 3D capabilities and dismissed them as low grade.
BobC
From: jejones@microware.com (James Jones)
Subject: Re: Rumours about 3DO ???
Nntp-Posting-Host: snake
Organization: Microware Systems Corp., Des Moines, Iowa
Lines: 19
In article <1993Apr15.164940.11632@mercury.unt.edu> Sean McMains <mcmains@unt.edu> writes:
>In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
>Muchado, ricardo@rchland.vnet.ibm.com writes:
>>   And CD-I's CPU doesn't help much either.  I understand it is
>>a 68070 (supposedly a variation of a 68000/68010) running at something
>>like 7Mhz.  With this speed, you *truly* need sprites.
>
>Wow! A 68070! I'd be very interested to get my hands on one of these,
>especially considering the fact that Motorola has not yet released the
>68060, which is supposedly the next in the 680x0 lineup. 8-D
Don't get too excited; Signetics, not Motorola, gave the 68070 its number.
The 68070, if I understand rightly, uses the 68000 instruction set, and has
an on-chip serial port and DMA.  (It will run at up to 15 MHz--I'm typing
at a computer using a 68070 running at that rate, so I know that it can
do so--so I seriously doubt the clock rate that ricardo@rchland.vnet.ibm.com
claims.)
James Jones
From: stjohn@math1.kaist.ac.kr (Ryou Seong Joon)
Subject: WANTED: Multi-page GIF!!
Organization: Korea Advanced Institute of Science and Technology
X-Newsreader: Tin 1.1 PL3
Lines:       12
Hi!...
I am searching for packages that could handle Multi-page GIF
files...
Are there any on some ftp servers?
I'll appreciate one which works on PC (either on DOS or Windows 3.0/3.1).
But any package works on Unix will be OK..
Thanks in advance...
From: eapu207@orion.oac.uci.edu (John Peter Kondis)
Subject: Physics lab LOSES a number!!!!
Nntp-Posting-Host: orion.oac.uci.edu
Summary: I need a pointer address for one of those weird graphics modes.
Keywords: VGA
Lines: 10
Please , I need the starting address (pointer) for the beginning
of the color information (RGB) on VGA mode 68h (that's 68 hex, gee,
duh!)...
Thanks SOOOO much (hugs and kisses) in advance.....
.....John (at UCI)
e-mail--->  eapu207@orion.oac.uci.edu
From: "james kewageshig" <james.kewageshig@canrem.com>
Subject: articles on flocking?
Reply-To: "james kewageshig" <james.kewageshig@canrem.com>
Organization: Canada Remote Systems
Distribution: comp
Lines: 17
HI All,
Can someone point me towards some articles on 'boids' or
flocking algorithms... ?
Also, articles on particle animation formulas would be nice...
________________________________________________________________________
|0 ___ ___  ____  ____  ____                                            0|\
|   \ \//    ||    ||    ||                James Kewageshig              |\|
|   _\//_   _||_  _||_  _||_      UUCP: james.kewageshig@canrem.com      |\|
|   N E T W O R K    V I I I    FIDONET:   James Kewageshig - 1:229/15   |\|
|0______________________________________________________________________0|\|
\________________________________________________________________________\|
---
� DeLuxe� 1.25 #8086 � Head of Co*& XV$# Hi This is a signature virus. Co
--
Canada Remote Systems - Toronto, Ontario
416-629-7000/629-7044
Subject: XV under MS-DOS ?!?
From: NO E-MAIL ADDRESS@eicn.etna.ch
Organization: EICN, Switzerland
Lines: 24
Hi ... Recently I found XV for MS-DOS in a subdirectory of GNU-CC (GNUISH). I
use frequently XV on a Sun Spark Station 1 and I never had problems, but when I
start it on my computer with -h option, it display the help menu and when I
start it with a GIF-File my Hard disk turns 2 or 3 seconds and the prompt come
back.
My computer is a little 386/25 with copro, 4 Mega rams, Tseng 4000 (1M) running
MS-DOS 5.0 with HIMEM.SYS and no EMM386.SYS. I had the GO32.EXE too... but no
driver who run with it.
Do somenone know the solution to run XV ??? any help would be apprecied..
Thanx in advance !!!!
--
---------------------------------------------------------------------
*								    *
*  Pascal PERRET     		|	perret@eicn.etna.ch         *
*  Ecole d'ing�nieur ETS	|	(Not Available at this time)*
*  2400 Le LOCLE		|				    *
*  Suisse 							    *
*		     !!!! Enjoy COMPUTER !!!!			    *
*								    *
---------------------------------------------------------------------
From: g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad)
Subject: Need polygon splitting algo...
Organization: University of Wollongong, NSW, Australia.
Lines: 11
NNTP-Posting-Host: wampyr.cc.uow.edu.au
Keywords: polygons, splitting, clipping
The idea is to clip one polygon using another polygon (not
necessarily rectangular) as a window.  My problem then is in
finding out all the new vertices of the resulting "subpolygons"
from the first one.  Is this simply a matter of extending the
usual algorithm whereby each of the edges of one polygon is checked
against another polygon???  Is there a simpler way??
Comments welcome.
Noel.
From: myless@vaxc.cc.monash.edu.au (Myles Strous)
Subject: J.C.Jensen's bitmap code
Organization: Computer Centre, Monash University, Australia
Lines: 18
Greetings all.
According to a FAQ I read, on 30 July 1992, Joshua C. Jensen posted an
article on bitmap manipulation (specifically, scaling and perspective) to the
newsgroup rec.games.programmer. (article 7716)
The article included source code in Turbo Pascal with inline assembly
language.
I have been unable to find an archive for this newsgroup, or a current
email address for Joshua C. Jensen.
If anyone has the above details, or a copy of the code, could they
please let me know.	Many thanks.
Yours gratefully, etc.  Myles.
--
Myles Strous	|	Email: myles.strous@lib.monash.edu.au
raytracing fan	|	Phone: +61.51.226536
"Got the same urgent grasp of reality as a cardboard cut-out. Proud to have him
on the team." Archchancellor Mustrum Ridcully, in Reaper Man by Terry Pratchett
From: markus@octavia.anu.edu.au (Markus Buchhorn)
Subject: Re: HDF readers/viewers
Organization: Australian National University, Canberra
Lines: 22
Distribution: world
NNTP-Posting-Host: 150.203.5.35
Originator: markus@octavia
I wrote...
>
> G'day all,
>
> Can anybody point me at a utility which will read/convert/crop/whatnot/
> display HDF image files ? I've had a look at the HDF stuff under NCSA
> and it must take an award for odd directory structure, strange storage
> approaches and minimalist documentation :-)
and it has since turned out that all the mirror sites I looked at were
fooled by a restructuring at the original site - zaphod.ncsa.uiuc.edu -
and hence were in a mess. That and a pointer to 'imconv' should get
me started. Ta muchly.
Cheers
Markus
--
Markus Buchhorn, Parallel Computing Research Facility
email = markus@octavia.anu.edu.au
Australian National University, Canberra, 0200 , Australia.
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]
From: un034214@wvnvms.wvnet.edu
Subject: M-MOTION VIDEO CARD: YUV to RGB ?
Organization: West Virginia Network for Educational Telecomputing
Lines: 21
I am trying to convert an m-motion (IBM) video file format YUV to RGB
data...
THE Y portion is a byte from 0-255
THE V is a byte -127-127
THe color is U and V
and the intensity is Y
DOes anyone have any ideas for algorhtyms or programs ?
Can someone tell me where to get info on the U and V of a television signal ?
IF you need more info reply at the e-mail address...
Basically what I am doing is converting a digital NTSC format to RGB (VGA)
for displaying captured video pictures.
Thanks.
THE U is a byte -127-127
From: zemcik@ls (Pavel Zemcik)
Subject: Tseng ET4000 pixel clock
Organization: Technical University of Brno, Czech Republic
Keywords: ET4000 SVGA pixel clock
Summary: Is there anybody who knows how to set ET4000 SVGA pixel clock?
Lines: 19
I would like to program Tseng ET4000 to nonstandard 1024x768 mode by
switching to standard 1024x768 mode using BIOS and than changing some
timing details (0x3D4 registers 0x00-0x1F) but I don't know how to
select 36 MHz pixel clock I need. The BIOS function selects 40 MHz.
Is there anybody who knows where to obtain technical info about this.
I am also interested in any other technical information about Tseng ET4000
and Trident 8900 and 9000 chipsets.
thanks very much
Pavel Zemcik
Dept. of Comp. Sci. & Eng.
Technical University of Brno
Bozetechova 2
CS-612 66 Brno
Czech Republic
e-mail: zemcik@dcse.fee.vutbr.cs
From: scott@osi.com (Scott Fleming)
Subject: Sun IPX root window display - background picture
Keywords: sun ipx background picture
Organization: Objective Systems Integrators, Folsom Ca.
Lines: 22
Hello netters!
I have a fairly weak question to ask everybody in netland.  I've looked though
the last FAQ for comp.graphics but I didn't find my answer.  Thus the post.
I'll keep it short.
QUESTION:  How do I display any raster files, gif files, iff or tiff images
that I have on my "root window" or background?  I have a sun ipc, openwindows
3.0, Sun OS 4.1.3 if that helps any.
I've compiled POV for the sun and would like to display some of the work I have
done as a background/tile.  Thanks for any help or information that you
provide.  Have a good day.
Scott Fleming
OSI
P.S.
Kudo's to the people who provided POV, its great!
From: markus@octavia.anu.edu.au (Markus Buchhorn)
Subject: HDF readers/viewers
Organization: Australian National University, Canberra
Lines: 33
Distribution: world
NNTP-Posting-Host: 150.203.5.35
Originator: markus@octavia
G'day all,
Can anybody point me at a utility which will read/convert/crop/whatnot/
display HDF image files ? I've had a look at the HDF stuff under NCSA
and it must take an award for odd directory structure, strange storage
approaches and minimalist documentation :-)
Part of the problem is that I want to look at large (5MB+) HDF files and
crop out a section. Ideally I would like a hdftoppm type of utility, from
which I can then use the PBMplus stuff quite merrily. I can convert the cropped
part into another format for viewing/animation.
Otherwise, can someone please explain how to set up the NCSA Visualisation S/W
for HDF (3.2.r5 or 3.3beta) and do the above cropping/etc. This is for
Suns with SunOS 4.1.2.
Any help GREATLY appreciated. Ta muchly !
Cheers,
Markus
--
Markus Buchhorn, Parallel Computing Research Facility
email = markus@octavia.anu.edu.au
Australian National University, Canberra, 0200 , Australia.
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]
--
Markus Buchhorn, Parallel Computing Research Facility
email = markus@octavia.anu.edu.au
Australian National University, Canberra, 0200 , Australia.
[International = +61 6, Australia = 06] [Phone = 2492930, Fax = 2490747]
From: se92psh@brunel.ac.uk (Peter Hauke)
Subject: Re: Grayscale Printer
Organization: Brunel University, Uxbridge, UK
X-Newsreader: TIN [version 1.1 PL8]
Distribution: na
Lines: 13
Jian Lu (jian@coos.dartmouth.edu) wrote:
: We are interested in purchasing a grayscale printer that offers a good
: resoltuion for grayscale medical images.  Can anybody give me some
: recommendations on these products in the market, in particular, those
: under $5000?
: Thank for the advice.
--
***********************************
* Peter Hauke @ Brunel University *
*---------------------------------*
*      se92psh@brunel.ac.uk       *
***********************************
From: joachim@kih.no (joachim lous)
Subject: Re: TIFF: philosophical significance of 42
Organization: Kongsberg Ingeniorhogskole
Lines: 30
NNTP-Posting-Host: samson.kih.no
X-Newsreader: TIN [version 1.1 PL8]
ulrich@galki.toppoint.de wrote:
> According to the TIFF 5.0 Specification, the TIFF "version number"
> (bytes 2-3) 42 has been chosen for its "deep philosophical
> significance".
> When I first read this, I rotfl. Finally some philosphy in a technical
> spec. But still I wondered what makes 42 so significant.
> Last week, I read the Hitchhikers Guide To The Galaxy, and rotfl the
> second time. (After millions of years of calculation, the second-best
> computer of all time reveals that 42 is the answer to the question
> about life, the universe and everything)
> Is this actually how they picked the number 42?
Yes.
> Does anyone have any  other suggestions where the 42 came from?
I don't know where Douglas Adams took it from, but I'm pretty sure he's
the one who launched it (in the Guide). Since then it's been showing up
all over the place.
_______________________________
/ _ L*   /  _  / .    /      _  /_  "One thing is for sure: The sheep
/  _)    /()(/(/)//)) /_ ()(/_) / /  Is NOT a creature of the earth."
/ \_)~  (/ Joachim@kih.no       / /
/_______________________________/ / -The back-masking on 'Haaden II'
/_______________________________/  from 'Exposure' by Robert Fripp.
From: oved3b@kih.no (Ove Petter Tro)
Subject: Re: need a viewer for gl files
Organization: Kongsberg College of Engineering
Lines: 16
Distribution: world
NNTP-Posting-Host: knoll.kih.no
In article <1qu36i$kh7@dux.dundee.ac.uk>, dwestner@cardhu.mcs.dundee.ac.uk (Dominik Westner) writes:
|> the subject says it all. Is there a PD viewer for gl files (for X)?
Try xviewgl.
(filename xviewgl_v1.1.tar.Z on lots of bases)
- Ove
--
- ----------==========###########==========-------- -
//                     | "What do you think
\X/ (Yep, me too...)     |  this is?  Real life?"
Ove Petter Tro,            |    - Ford Fairlane.
Kongsberg College          |
of Engineering, Norway     | email: ovep@kih.no
- ----------==========###########==========-------- -
From: max@slinky.NYU.EDU (David Max)
Subject: 24bit mode on Speedstar 24X
Summary: Routines for 24 bit color on Speedstar 24X?
Keywords: Diamond Speedstar 24X 24bit 16.7
Organization: New York University
Lines: 12
I have a Diamond Speedstar 24X board that I want to program
for 24 bit 640x480 graphics, or possibly 800x600 16 bit color.
Does anybody have any libraries supporting these modes on this
board? Even somes simple routines to set the graphics mode and
plot individual pixels would be a great help. I plan to use the
routines with djgp.
Thanks in advance. Please respond also via e-mail.
David Max
max@slinky.cs.nyu.edu
From: koolish@bbn.com (Dick Koolish)
Subject: Re: Flat globe
Lines: 17
NNTP-Posting-Host: bbn.com
sp1marse@kristin (Marco Seirio) writes:
>Does anybody have an algorithm for "flattening" out a globe, or any other
>parametric surface, that is definied parametrically.
>That is, I would like to take a sheet of paper and a knife and to be
>able to calculate how I must cut in the paper so I can fold it to a
>globe (or any other object).
There is a library of map projections in:
charon.er.usgs.gov
in
/pub/PROJ.4.1.3.tar.Z
From: ricky@watson.ibm.com (Rick Turner)
Subject: Re: M-MOTION VIDEO CARD: YUV to RGB ?
Disclaimer: This posting represents the poster's views, not necessarily those of IBM.
Nntp-Posting-Host: danebury.hursley.ibm.com
Organization: IBM UK Labs
Lines: 3
I'll contact you offline about this.
Rick
From: wdm@world.std.com (Wayne Michael)
Subject: Re: XV under MS-DOS ?!?
Organization: n/a
Lines: 12
NO E-MAIL ADDRESS@eicn.etna.ch writes:
>Hi ... Recently I found XV for MS-DOS in a subdirectory of GNU-CC (GNUISH). I
please tell me where you where you FTP'd this from? I would like to have
a copy of it. (I would have mailed you, but your post indicates you have no mail
address...)
>
--
Wayne Michael
wdm@world.std.com
From: ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado)
Subject: Re: Rumours about 3DO ???
Disclaimer: This posting represents the poster's views, not necessarily those of IBM
Nntp-Posting-Host: rs43873.rchland.ibm.com
Organization: IBM Rochester
Lines: 35
In article <1993Apr19.121925.14451@microware.com>, jejones@microware.com (James Jones) writes:
|> In article <1993Apr15.164940.11632@mercury.unt.edu> Sean McMains <mcmains@unt.edu> writes:
|> >In article <1993Apr15.144843.19549@rchland.ibm.com> Ricardo Hernandez
|> >Muchado, ricardo@rchland.vnet.ibm.com writes:
|> >>   And CD-I's CPU doesn't help much either.  I understand it is
|> >>a 68070 (supposedly a variation of a 68000/68010) running at something
|> >>like 7Mhz.  With this speed, you *truly* need sprites.
|> >
|> >Wow! A 68070! I'd be very interested to get my hands on one of these,
|> >especially considering the fact that Motorola has not yet released the
|> >68060, which is supposedly the next in the 680x0 lineup. 8-D
|>
|> Don't get too excited; Signetics, not Motorola, gave the 68070 its number.
|> The 68070, if I understand rightly, uses the 68000 instruction set, and has
|> an on-chip serial port and DMA.  (It will run at up to 15 MHz--I'm typing
|> at a computer using a 68070 running at that rate, so I know that it can
|> do so--so I seriously doubt the clock rate that ricardo@rchland.vnet.ibm.com
|> claims.)
|>
|> 	James Jones
Just because the 68070 can run upto 15Mhz doesn't mean the CD-I
is running at that speed.  I said -> I understand it is a 68070 running
at something like 7Mhz.  I am not sure, but I think I read this a long
time ago.
Anyway, still with 15Mhz, you need sprites for a lot of tricks for
making cool awesome games (read psygnosis).
--------------------------------------
Raist  New A1200 owner   320<->1280 in x, 200<->600 in y
in 256,000+ colors from a 24-bit palette.  **I LOVE IT!**<- New Low Fat .sig
*don't e-mail me* -> I don't have a valid address nor can I send e-mail
From: nerone@ccwf.cc.utexas.edu (Michael Nerone)
Subject: Re: Newsgroup Split
Organization: The University of Texas at Austin
Lines: 25
Distribution: world
<1993Apr19.193758.12091@unocal.com>
<1quvdoINN3e7@srvr1.engin.umich.edu>
NNTP-Posting-Host: sylvester.cc.utexas.edu
In-reply-to: tdawson@engin.umich.edu's message of 19 Apr 1993 19:43:52 GMT
In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
CH> Concerning the proposed newsgroup split, I personally am not in
CH> favor of doing this.  I learn an awful lot about all aspects of
CH> graphics by reading this group, from code to hardware to
CH> algorithms.  I just think making 5 different groups out of this
CH> is a wate, and will only result in a few posts a week per group.
CH> I kind of like the convenience of having one big forum for
CH> discussing all aspects of graphics.  Anyone else feel this way?
CH> Just curious.
I must agree.  There is a dizzying number of c.s.amiga.* newsgroups
already.  In addition, there are very few issues which fall cleanly
into one of these categories.
Also, it is readily observable that the current spectrum of amiga
groups is already plagued with mega-crossposting; thus the group-split
would not, in all likelihood, bring about a more structured
environment.
--
/~~~~~~~~~~~~~~~~~~~\/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\
/    Michael Nerone   \"I shall do so with my customary lack of tact; and\
/   Internet Address:   \since you have asked for this, you will be obliged\
/nerone@ccwf.cc.utexas.edu\to pardon it."-Sagredo, fictional char of Galileo.\
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: TIFF: philosophical significance of 42
Organization: Purdue University
Lines: 19
In article <1993Apr14.191415.10553@samba.oit.unc.edu> cptully@med.unc.edu
(Christopher P. Tully,Pathology,62699) writes:
> Why so up tight?  FOr that matter, TIFF6 is out now, so why not gripe
> about its problems?  Also, if its so important to you, volunteer to
> help define or critique the spec.
I've got the 6.0 spec (obviously since I quoted it in my last posting).
My gripe about TIFF is that it's far too complicated and nearly
infinitely easier to write than to read, which I think hurts your
acceptance by anything that will need to read those images (e.g.,
paint programs).
In a nutshell, I don't think TIFF is salvageable unless the fat is
trimmed significantly- and then it wouldn't be TIFF anymore.  They
keep trying to cut it back, but it's late now.  Maybe they >will< fix it,
and change that magic number to signify the lack of compatibility.
That would probably make me happy.
ab
From: cgcad@bart.inescn.pt (Comp. Graphics/CAD)
Subject: Re: Fonts in POV??
Nntp-Posting-Host: bart
Organization: INESC-Porto, Portugal
Lines: 27
Hi.
The RTrace ray tracer supports 3D text as a primitive, not collections of
spheres, cylinders and so on...
The 3D chars are made of lines and splines that are extruded...
Please have a look at asterix.inescn.pt [192.35.246.17] in directory
pub/RTrace.
In pub/RTrace/tmp there are some demo images with high quality text.
All of them are called Text?.jpg (JPEG encoded). See them first and then
tell me what you think.
Regards,
Antonio.
.........................................................................
O     O
/     /                        I N E S C
| O   |        Antonio Costa        | E-Mail   acc@asterix.inescn.pt
| |\  |   O                         |          acosta@porto.inescn.pt
| | \ |  /  O  Comp. Graphics & CAD | DECnet   porto::a_costa
| |  \| /  /                        |
| |  /  | |    Largo Mompilher 22   | UUCP     {mcvax,...}!...
O | |-O | |    4100 Porto PORTUGAL  | Bell     +351+02+321006
/   \ /   \
O     O     O          "Let the good times roll..."
From: cgcad@bart.inescn.pt (Comp. Graphics/CAD)
Subject: RTrace 8.2.0
Keywords: ray tracing
Nntp-Posting-Host: bart
Organization: INESC-Porto, Portugal
Lines: 83
There is a new version of the RTrace ray-tracing package (8.2.0) at
asterix.inescn.pt [192.35.246.17] in directory pub/RTrace.
Check the README file.
RTrace now can use the SUIT toolkit to have a nice user interface.
Compile it with -DSUIT or modify the Makefile.
SUIT is available at suit@uvacs.cs.virginia.edu
I have binaries of RTrace with SUIT for SUN Sparc, SGI Indigo
and DOS/GO32.
Please contact me if interested.
****************************************
The MAC RTrace 1.0 port is in directory pub/RTrace/Macintosh
Thanks to Reid Judd (reid.judd@east.sun.com) and
Greg Ferrar (gregt@function.mps.ohio-state.edu).
****************************************
Small changes were done since version 8.1.0, mainly:
1. Now it is possible to discard backface polygons and triangles
for fast preview...
2. The support program scn2sff has been reworked to use temp files.
****************************************
Here goes a short description of current converters from
CAD/molecular/chemistry packages to the SCN format.
The package programs are related as below (those marked with * have been
modified)
irit2scn
IRIT ----------------|
|               NFF (nffclean, nffp2pp)
sol2scn   |                |
ACAD11 ---------------|                | nff2sff
|                |
mol2scn	  v    scn2sff*    v	rtrace*
ALCHEMY  -----------> SCN -----------> SFF ----------> PIC or PPM
^      cpp                           |
pdb2scn   |                                 picmix
PDB -----------------|                                 picblend
|                                 ppmmix*
chem2scn   |                                 ppmblend*
CHEMICAL --------------|
|
3ds2scn*  |
3D STUDIO --------------|
|
iv2scn*   |
IRIS Inventor -----------|
****************************************
The DOS port of RTrace is in pub/RTrace/PC-386 (rtrac820.arj,
utils820.arj and image820.arj). See the README file there.
Requires DJGPP GO32 DOS extender (version 1.09 included), which can be
found in directory pub/PC/djgpp (and in many sites around netland).
There are also demo scenes, manuals and all the source code...
****************************************
Please feel free to get it and use it.
Hope you like it.
Regards,
Antonio Costa.
.........................................................................
O     O
/     /                        I N E S C
| O   |        Antonio Costa        | E-Mail   acc@asterix.inescn.pt
| |\  |   O                         |
| | \ |  /  O  Comp. Graphics & CAD | DECnet   porto::acosta
| |  \| /  /                        |
| |  /  | |    Largo Mompilher 22   | UUCP     {mcvax,...}!...
O | |-O | |    4100 Porto PORTUGAL  | Bell     +351+02+321006
/   \ /   \
O     O     O          "Let the good times roll..."
From: clldomps@cs.ruu.nl (Louis van Dompselaar)
Subject: Re: images of earth
Organization: Utrecht University, Dept. of Computer Science
Lines: 16
In <1993Apr19.193758.12091@unocal.com> stgprao@st.unocal.COM (Richard Ottolini) writes:
>Beware.  There is only one such *copyrighted* image and the company
>that generated is known to protect that copyright.  That image took
>hundreds of man-hours to build from the source satellite images,
>so it is unlikely that competing images will appear soon.
So they should sue the newspaper I got it from for printing it.
The article didn't say anything about copyrights.
Louis
--
I'm hanging on your words, Living on your breath, Feeling with your skin,
Will I always be here?  -- In Your Room [ DM ]
From: bosch@rz.uni-karlsruhe.de (Gerhard Bosch)
Subject: Re: Newsgroup Split
Organization: University of Karlsruhe, Germany
Lines: 55
Distribution: world
NNTP-Posting-Host: ifh-hp2.bau-verm.uni-karlsruhe.de
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
In article <NERONE.93Apr20085951@sylvester.cc.utexas.edu>, nerone@ccwf.cc.utexas.edu (Michael Nerone) writes:
|> In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
|>
|>   CH> Concerning the proposed newsgroup split, I personally am not in
|>   CH> favor of doing this.  I learn an awful lot about all aspects of
|>   CH> graphics by reading this group, from code to hardware to
|>   CH> algorithms.  I just think making 5 different groups out of this
|>   CH> is a wate, and will only result in a few posts a week per group.
|>   CH> I kind of like the convenience of having one big forum for
|>   CH> discussing all aspects of graphics.  Anyone else feel this way?
|>   CH> Just curious.
|>
|> I must agree.  There is a dizzying number of c.s.amiga.* newsgroups
|> already.  In addition, there are very few issues which fall cleanly
|> into one of these categories.
|>
|> Also, it is readily observable that the current spectrum of amiga
|> groups is already plagued with mega-crossposting; thus the group-split
|> would not, in all likelihood, bring about a more structured
|> environment.
|>
|> --
|>    /~~~~~~~~~~~~~~~~~~~\/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\
|>   /    Michael Nerone   \"I shall do so with my customary lack of tact; and\
|>  /   Internet Address:   \since you have asked for this, you will be obliged\
|> /nerone@ccwf.cc.utexas.edu\to pardon it."-Sagredo, fictional char of Galileo.\
Hi,
It might be nice to know, what's possible on different hard ware platforms.
But usually the hard ware is fixed ( in my case either Unix or DOS- PC ).
So I'm not much interested in Amiga news.
In the case of Software, I won't get any comercial software mentioned in this
newgroup to run on a Unix- platform, so I'm not interested in this information.
I would suggest to split the group. I don't see the problem of cross-posting.
Then you need to read just 2 newgroups with half the size.
BUT WHAT WOULD BE MORE IMPORTANT IS TO HAVE A FAQ. THIS WOULD REDUCE THE
TRAFFIC A LOT.
Sincerely, Gerhard
--
I'm writing this as a privat person, not reflecting any opinions of the Inst.
of Hydromechanics,  the University of Karlsruhe, the Land Baden-Wuerttemberg,
the Federal Republic of Germany and  the European Community.  The address and
phone number below  are just to get in touch with me.  Everything I'm saying,
writing and typing is always wrong ! (Statement necessary to avoid law suits)
=============================================================================
-    Dipl.-Ing. Gerhard Bosch M.Sc.             voice:(0721) - 608 3118     -
-    Institute for Hydromechanic                  FAX:(0721) - 608 4290     -
-    University of Karlsruhe, Kaiserstrasse 12, 7500-Karlsruhe, Germany     -
-    Internet: bosch@ifh-hp2.bau-verm.uni-karlsruhe.de                      -
-      Bitnet: nd07@DKAUNI2.BITNET                                          -
=============================================================================
From: mini@csd4.csd.uwm.edu (Padmini Srivathsa)
Subject: WANTED : Info on Image Databases
Organization: Computing Services Division, University of Wisconsin - Milwaukee
Lines: 15
Distribution: world
NNTP-Posting-Host: 129.89.7.4
Originator: mini@csd4.csd.uwm.edu
Guess the subject says it all.
I would like references to any introductory material on Image
Databases.
Please send any pointers to mini@point.cs.uwm.edu
Thanx in advance!
--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-< MINI >-           mini@point.cs.uwm.edu | mini@csd4.csd.uwm.edu
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From: glp@phillson.cray.com (Gordon Phillips)
Subject: Lyon lamb minivas-2 control of abekas A66
Originator: glp@phillson
Lines: 12
Nntp-Posting-Host: phillson.cray.com
Organization: Cray Research, Inc.
We have a minivas-2 and we want to record to an Abekas A66.
We have most of the functions working but when we go to
set up a record the minivas hangs. We are sending the
abekas SMPTE time code. Does anyone have code we can
compare to what we have done and is there and ftp site
for minivas and abekas code.
Gordon Phillips
glp@cray.com
--
Gordon Phillips - glp@cray.com
From: sigma@rahul.net (Kevin Martin)
Subject: Re: Stay Away from MAG Innovision!!!
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 10
In <16BB58B33.D1SAR@VM1.CC.UAKRON.EDU> D1SAR@VM1.CC.UAKRON.EDU (Steve Rimar) writes:
>My Mag MX15F works fine....................
Mine was beautiful for a year and a half.  Then it went <foomp>.  I bought
a ViewSonic 6FS instead.  Another great monitor, IMHO.
--
Kevin Martin
sigma@rahul.net
"I gotta get me another hat."
From: capelli@vnet.IBM.COM (Ron Capelli)
Subject: Re: detecting double points in bezier curves
Disclaimer: This posting represents the poster's views, not those of IBM
News-Software: UReply 3.1
Lines: 16
In <ia522B1w165w@oeinck.waterland.wlink.nl> Ferdinand Oeinck writes:
>I'm looking for any information on detecting and/or calculating a double
>point and/or cusp in a bezier curve.
See:
Maureen Stone and Tony DeRose,
"A Geometric Characterization of Parametric Cubic Curves",
ACM TOG, vol 8, no 3, July 1989, pp. 147-163.
_______________________________________________________________________
...Ron Capelli                 IBM Corp.  Dept. C13,  MS. P230
capelli@vnet.ibm.com        PO Box 950
(914) 435-1673              Poughkeepsie, NY  12602
_______________________________________________________________________
"There are no answers, only cross references."
From: oberto@genes.icgeb.trieste.it (Jacques Oberto)
Subject: Re: HELP!!! GRASP
Organization: ICGEB
Lines: 33
CBW790S@vma.smsu.edu.Ext (Corey Webb) writes:
>In article <1993Apr19.160944.20236W@baron.edb.tih.no>
>havardn@edb.tih.no (Haavard Nesse,o92a) writes:
>>
>>Could anyone tell me if it's possible to save each frame
>>of a .gl (grasp) animation to .gif, .jpg, .iff or any other
>>picture formats.
>>
>
>     If you have the GRASP animation system, then yes, it's quite easy.
>You simply use GLIB to extract the image (each "frame" in a .GL is
>actually a complete .PCX or .CLP file), then use one of MANY available
>utilities to convert it.  If you don't have the GRASP package, I'm afraid
>I can't help you.  Sorry.
>     By the way, before you ask, GRASP (GRaphics Animation System for
>Professionals) is a commercial product that sells for just over US$300
>from most mail-order companies I've seen.  And no, I don't have it.  :)
>
>
>                                               Corey Webb
>
There are several public domain utilities available at your usual
archive site that allow 'extraction' of single frames from a .gl
file, check in the 'graphics' directories under *grasp.  The problem
is that the .clp files you generate cannot be decoded by any of
the many pd format converters I have used. Any hint welcome!
Let me know if you have problems locating the utilities.
Hope it helps.
--
Jacques Oberto  <oberto@genes.icgeb.trieste.it>
From: sigma@rahul.net (Kevin Martin)
Subject: Re: TIFF: philosophical significance of 42
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 14
In <1r0ms5$k65@ratatosk.uninett.no> joachim@kih.no (joachim lous) writes:
>> Does anyone have any  other suggestions where the 42 came from?
>I don't know where Douglas Adams took it from, but I'm pretty sure he's
>the one who launched it (in the Guide). Since then it's been showing up
>all over the place.
Douglas Adams once said (paraphrased from memory): "I just picked it.  It
seemed like the sort of number you wouldn't be afraid to take home to meet
your parents.  Nice and even, perfectly normal."
--
Kevin Martin
sigma@rahul.net
"I gotta get me another hat."
From: sigma@rahul.net (Kevin Martin)
Subject: Re: XV under MS-DOS ?!?
Nntp-Posting-Host: bolero
Organization: a2i network
Lines: 11
In <1993Apr20.083731.260@eicn.etna.ch> NO E-MAIL ADDRESS@eicn.etna.ch writes:
>Do somenone know the solution to run XV ??? any help would be apprecied..
I would guess that it requires X, almost certainly DV/X, which commonly
uses the GO32 (DJGPP) setup for its programs.  If you don't have DV/X
running, you can't get anything which requires interfacing with X.
--
Kevin Martin
sigma@rahul.net
"I gotta get me another hat."
From: ktt3@unix.brighton.ac.uk (Koon Tang)
Subject: PostScript driver for GINO
Organization: The Univerity of Brighton, U.K.
Lines: 15
Does anybody know where I can get, via anonymous ftp or otherwise, a PostScript
driver for the graphics libraries GINO verison 3.0A ?
We are runnining on a VAX/VMS and are looking for a way outputing our plots to a
PostScript file...
Thanks in advance...
--
Koon Tang,                                internet: ktt3@unix.bton.ac.uk
Department of Mathematical Sciences,          uucp: uknet!itri!ktt3
University of Brighton,
Brighton,
BN2 4GJ,
U.K.
From: jfreund@taquito.engr.ucdavis.edu (Jason Freund)
Subject: Info on Medical Imaging systems
Organization: College of Engineering - University of California - Davis
Lines: 10
Hi,
Is anyone into medical imaging?  I have a good ray tracing background,
and I'm interested in that field.  Could you point me to some sources?  Or
better yet, if you have any experience, do you want to talk about what's
going on or what you're working on?
Thanks,
Jason Freund
From: tristant@syma.sussex.ac.uk (Tristan Tarrant)
Subject: Paradise VGA
Organization: University of Sussex
Lines: 13
I have a Paradise SVGA with 1Mb, the 90c030 chip (1D). The docs say that
I can display the following modes : 640x480x32k colours and 800x600x32k cols
if I have the RAMDAC HiColor Chip. I have checked the board and I do have
such a chip. Now, the problem is that I can't get this mode to work !
Graphics Workshop 6.1 claims that it can display 24 bit images dithered
down to 15 bit colour with my board, but it doesn't work. I have tried
writing some assembler code to get the modes working and I have found out
that each pixel is addressed by a word ( 16 bit ), but only the lower 8 bits
are considered ( this happens in 800x600 mode, the 640x480 mode refuses to
work i.e. remains in text mode ).
Could someone please help me.
Tristan
From: dotzlaw@ccu.umanitoba.ca (Helmut Dotzlaw)
Subject: Anti-aliasing utility wanted
Nntp-Posting-Host: murphy.biochem.umanitoba.ca
Organization: University of Manitoba
Lines: 10
I am currently using POVRay on Mac and was wondering if anyone in netland
knows of public domain anti-aliasing utilities so that I can skip this step
in POV, very slow on this machine.  Any suggestions, opinions about
post-trace anti-aliasing would be greatly appreciated.
Helmut Dotzlaw
Dept. of Biochemistry and Molecular Biology
University of Manitoba
Winnipeg, Canada
dotzlaw@ccu.umanitoba.ca
From: lmp8913@rigel.tamu.edu (PRESTON, LISA M)
Subject: Another CVIEW question (was CView answers)
Organization: Texas A&M University, Academic Computing Services
Lines: 12
Distribution: world
NNTP-Posting-Host: rigel.tamu.edu
News-Software: VAX/VMS VNEWS 1.41
Has anybody gotten CVIEW to work in 32k or 64k color mode on a Trident
8900c hi-color card? At best the colors come out screwed up, and at worst the
program hangs. I loaded the VESA driver, and the same thing happens on 2
different machines.
If it doesn't work on the Trident, does anybody know of a viewer that
does?
Thanx!
LISA
From: tdawson@llullaillaco.engin.umich.edu (Chris Herringshaw)
Subject: Re: Sun IPX root window display - background picture
Organization: University of Michigan Engineering, Ann Arbor
Lines: 15
Distribution: world
NNTP-Posting-Host: llullaillaco.engin.umich.edu
Keywords: sun ipx background picture
Originator: tdawson@llullaillaco.engin.umich.edu
I'm not sure if you got the information you were looking for, so I'll
post it anyway for the general public.  To load an image on your root
window add this line to the end of your .xsession file:
xloadimage -onroot -fullscreen <gif_file_name> &
This is assuming of course you have the xloadimage client, and as
for the switches, I think they pretty much explain what is going on.
If you leave out the <&>, the terminal locks till you kill it.
(You already knew that though...)
Hope this helps.
Daemon
From: lasse@mits.mdata.fi (Lasse Reinikainen)
Subject: Re: WANTED: Multi-page GIF!!
Organization: Microdata Oy, Helsinki, Finland
Nntp-Posting-Host: mits.mdata.fi
Lines: 16
In article <1993Apr20.053250.24854@worak.kaist.ac.kr> stjohn@math1.kaist.ac.kr (Ryou Seong Joon) writes:
>Hi!...
>
>I am searching for packages that could handle Multi-page GIF
>files...
If you are looking for viewer try VPIC60
__________________           __
\_________________|)____.---'--`---.____
||    \----.________.----/
||     / /    `--'                  lasse@mits.mdata.fi
__||____/ /_
|___         \
`--------'
From: tdawson@llullaillaco.engin.umich.edu (Chris Herringshaw)
Subject: Ray tracer for ms-dos?
Organization: University of Michigan Engineering, Ann Arbor
Lines: 9
Distribution: world
NNTP-Posting-Host: llullaillaco.engin.umich.edu
Originator: tdawson@llullaillaco.engin.umich.edu
Sorry for the repeat of this request, but does anyone know of a good
free/shareware program with which I can create ray-traces and save
them as bit-mapped files?  (Of course if there is such a thing =)
Thanks in advance
Daemon
From: madler@cco.caltech.edu (Mark Adler)
Subject: Re: images of earth
Organization: California Institute of Technology, Pasadena
Lines: 8
NNTP-Posting-Host: sandman.caltech.edu
>> So they should sue the newspaper I got it from for printing it.
>> The article didn't say anything about copyrights.
I'm sure the whole newspaper is copyrighted.  They could have gotten
permission to use the image under their own copyright.
mark
From: stgprao@st.unocal.COM (Richard Ottolini)
Subject: Re: images of earth
Organization: Unocal Corporation
Lines: 39
In article <1993Apr20.143434.5069@cs.ruu.nl> clldomps@cs.ruu.nl (Louis van Dompselaar) writes:
>In <1993Apr19.193758.12091@unocal.com> stgprao@st.unocal.COM (Richard Ottolini) writes:
>
>>Beware.  There is only one such *copyrighted* image and the company
>>that generated is known to protect that copyright.  That image took
>>hundreds of man-hours to build from the source satellite images,
>>so it is unlikely that competing images will appear soon.
>
>So they should sue the newspaper I got it from for printing it.
>The article didn't say anything about copyrights.
(1) No explicit (c) is necessary.  If it the image is attributed to the
Geosphere Company, then there is a likelihood permission is has been
given to reprint.
(2) Unlikely that the owner can or will go after individuals.
However, "interesting" images do make their way into ads and
computer demos. That is when a pirate might get some flak.
This image is considered so "interesting" that many people would
like to use it whenever some global map is needed, so there
is lots of temptation.
(3) One mail person said since the source data- satellite imagery-
is not copyrighted, then the derived image can't be.  Not true.
A new, distinctive, creative expression of the data can be protected.
This image is certainly fits such, since NO ONE ELSE has taken the
tremendous effort to re-create it themselves.  Precedent is a recent
telephone book court case.  Ma Bell tried to copyright the data in
their books and prevent competitors from copying it (there are
trick entries in the book).  But the court only permitted copyright
of the expression of the data, and not the data themselves. (You cant
xerox and sell the telephone book.)
(4) There will be more attention to digital copyrights in the future
and computer becomes a mass product and moguls such as Bill Gates
are currently hoarding the digital copyrights.
(5) I'd prefer that Geosphere put this data in the public domain because
it is very interesting to me and others, but that's the way things are.
From: dingebre@imp.sim.es.com (David Ingebretsen)
Subject: Re: images of earth
Organization: Evans & Sutherland Computer Corp., Salt Lake City, UT
Lines: 20
Distribution: world
Reply-To: dingebre@imp.sim.es.com (David Ingebretsen)
NNTP-Posting-Host: imp.sim.es.com
I downloaded an image of the earth re-constructed from elevation data taken
at 1/2 degree increments. The author (not me) wrote some c-code (included)
that read in the data file and generated b&w and pseudo color images. They
work very well and are not incumbered by copyright. They are at an aminet
site near you called earth.lha in the amiga/pix/misc area...
I refer you to the included docs for the details on how the author (sorry, I
forget his name) created these images. The raw data is not included.
--
David
David M. Ingebretsen
Evans & Sutherland Computer Corp.
dingebre@thunder.sim.es.com
Disclaimer: The content of this message in no way reflects the
opinions of my employer, nor are my actions
encouraged, supported, or acknowledged by my
employer.
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Need polygon splitting algo...
Organization: University of Southern California, Los Angeles, CA
Lines: 25
Distribution: world
NNTP-Posting-Host: caspian.usc.edu
Keywords: polygons, splitting, clipping
In article <1qvq4b$r4t@wampyr.cc.uow.edu.au>, g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad) writes:
|>
|> The idea is to clip one polygon using another polygon (not
|> necessarily rectangular) as a window.  My problem then is in
|> finding out all the new vertices of the resulting "subpolygons"
|> from the first one.  Is this simply a matter of extending the
|> usual algorithm whereby each of the edges of one polygon is checked
|> against another polygon???  Is there a simpler way??
|>
|> Comments welcome.
|>
|> Noel.
It depends on what kind of the polygons.
Convex - simple, concave - trouble, concave with loop(s)
inside - big trouble.
Of cause, you can use the box test to avoid checking
each edges. According to my experience, there is not
a simple way to go. The headache stuff is to deal with
the special cases, for example, the overlapped lines.
Yeh
USC
From: johnh@jhunix.hcf.jhu.edu (John J Humpal)
Subject: Re: images of earth
Organization: Homewood Academic Computing, Johns Hopkins University, Baltimore, Md, USA
Lines: 14
NNTP-Posting-Host: jhunix.hcf.jhu.edu
In article <1993Apr20.143434.5069@cs.ruu.nl> clldomps@cs.ruu.nl (Louis van Dompselaar) writes:
>So they should sue the newspaper I got it from for printing it.
>The article didn't say anything about copyrights.
The newspaper itself is almost certainly copyrighted in its
entirety.  Newspapers generally employ legal staffs which make sure
they get permission to use a copyrighted image or text.  Did you
do the same?
--
-John
John J. Humpal -- johnh@jhunix.hcf.jhu.edu -- short .sig, std. disclaimer
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: comp.graphics.programmer
Organization: Purdue University
Lines: 26
In article <1qukk7INNd4l@no-names.nerdc.ufl.edu> lioness@maple.circa.ufl.edu
writes:
> However, that is almost overkill.  Something more like this would probably
> make EVERYONE a lot happier:
>
> comp.graphics.programmer
> comp.graphics.hardware
> comp.graphics.apps
> comp.graphics.misc
That's closer, but I dislike "apps".  "software" (vs. "hardware")
would be better.  Would that engulf alt.graphics.pixutils?  Or would
that be "programmer"?
I don't know if traffic is really heavy enough to warrant a newsgroup
split.  Look how busy comp.graphics.research is (not).
It's true that a lot of the traffic here is rehashing FAQs and
discussing things that would probably be better diverted to
system-specific groups, but I don't know whether a split would help
or hurt that cause.
Maybe we need a comp.graphics.RTFB for all those people who can't be
bothered to read the fine books out there.  Right, Dr. Rogers? :-)
ab
From: daniel@lclark.edu (Daniel Snodgrass)
Subject: Re: stand alone editing suite.
Article-I.D.: lclark.1993Apr20.191542.9392
Organization: Lewis & Clark College, Portland OR
Lines: 63
In article <1qvkaeINNgat@shelley.u.washington.edu> eylerken@stein.u.washington.edu (Ken Eyler) writes:
>I need some help.  We are upgrading our animation/video editing stand. We
>are looking into the different type of setups for A/B roll and a cuts only
>station.  We would like this to be controlled by a computer ( brand doesnt matter but maybe MAC, or AMIGA).  Low end to high end system setups would be very
>helpful. If you have a system or use a system that might be of use, could you
>mail me your system requirements, what it is used for, and all the hardware and
>software that will be necessary to set the system up.  If you need more
>info, you  can mail me at   eylerken@u.washington.edu
>
>thanks in advance.
>
>:ken
>:eylerken@u.washington.edu
Here at Lewis and Clark College we have recently installed a Digital Film
system (based on the Mac Quadra) that does non-linear, full digital editing.
If you're considering such a system, here are the pros and cons:
For the educational environment, this system is excellent.  We use it to
produce a variety of educational materials for disemination on our local
network.  Because this programming is going to be viewed on other Macs, the
image quality is not as important as the ability to directly export the
video to the Net.
We also use it to produce orientiation and promotional video programs for
use by the Lewis & Clark community.  Since these programs are not meant for
commercial or broadcast use, image quality is not critical.
The Digital Film system, for those of you who are uninitiated, is an A/B roll
digitizing system on one $5000 JPEG compression card.  It was promoted as
an inexpensive online editing system with SVHS quality.  SuperMac, the maker
of the card, is trying to achieve this quality level, but as yet, has been
unable to deliver.  Our system produces "near VHS" quality at 30 fields per
second (640x480 overscan).  The card repeats every other field to get 60
fields per second.  This results in a kind of Super 8 film look that some
find distracting.
If you can get past this problem, you'll find the Adobe Premier editing
software quite enjoyable with which to work.  It produces thousands of
different effects from crystalize filters to DVE transitions to color matting.
Because of its non-linear nature, editing is fast and easy.  If you've ever
used (or seen used) an AVID or Montage system, you'll recognize the methodology
and the user interface.
The total system with Quadra 950 (40Megs of RAM), 1 gig drive, 21" Apple mon-
itor, Panasonic SVHS 1960 edit deck, audio gear (cassette, CD, EQ, mixer, etc),
Composite monitor, Digital Film card will set you back about $20,000.
For you video cowboys and girls, this system will not output at a quality
that will satisfy most of your clients.  Even though you can perform more
effects than a toasterhead can imagine, an Amiga based off-line based system
will look better.
We use both Macs and Amigas for our video work.  Each for what each does best!
Dan Snodgrass
Media Services
Lewis & Clark College
Portland
From: jk87377@lehtori.cc.tut.fi (Kouhia Juhana)
Subject: XV problems
Organization: Tampere University of Technology
Lines: 113
Distribution: world
NNTP-Posting-Host: cc.tut.fi
[Please, note the Newsgroups.]
Recent discussion about XV's problems were held in some newsgroup.
Here is some text users of XV might find interesting.
I have added more to text to this collection article, so read on, even
you so my articles a while ago.
I hope author of XV corrects those problems as best he can, so fine
program XV is that it is worth of improving.
(I have also minor ideas for 24bit XV, e-mail me for them.)
Any misundertanding of mine is understandable.
Juhana Kouhia
==clip==
[ ..deleted..]
Note that 'xv' saves only 8bit/rasterized images; that means that
the saved jpegs are just like jpeg-to-gif-to-jpeg quality.
Also, there's three kind of 8bit quantizers; your final image quality
depends on them too.
This were the situation when I read jpeg FAQ a while ago.
IMHO, it is design error of 'xv'; there should not be such confusing
errors in programs.
There's two errors:
-xv allows the saving of 8bit/rasterized image as jpeg even the
original is 24bit -- saving 8bit/rasterized image instead of
original 24bit should be a special case
-xv allows saving the 8bit/rasterized image made with any quantizer
-- the main case should be that 'xv' quantizes the image with the
best quantizer available before saving the image to a file; lousier
quantizers should be just for viewing purposes (and a special cases
in saving the image, if at all)
==clip==
==clip==
[ ..deleted..]
It is limit of *XV*, but not limit of design.
It is error in design.
It is error that 8bit/quantized/rasterized images are stored as jpegs;
jpeg is not designed to that.
As matter of fact, I'm sure when XV were designed 24bit displays were
known. It is not bad error to program a program for 8bit images only
at that time, but when 24bit image formats are included to program the
whole design should be changed to support 24bit images.
That were not done and now we have
-the program violate jpeg design (and any 24bit image format)
-the program has human interface errors.
Otherway is to drop saving images as jpegs or any 24bit format without
clearly saying that it is special case and not expected in normal use.
[ ..deleted.. ]
==clip==
Some new items follows.
==clip==
I have seen that XV quantizes the image sometimes poorly with -best24
option than with default option we have.
The reason surely is the quantizer used as -best24; it is (surprise)
the same than used in ppmquant.
If you remember, I have tested some quantizers. In that test I found
that rlequant (with default) is best, then comes djpeg, fbmquant, xv
(our default) in that order. In my test ppmquant suggeeded very poorly
-- it actually gave image with bad artifacts.
I don't know is ppmquant improved any, but I expect no.
So, use of XV's -best24 option is not very good idea.
I suggest that author of XV changes the quantizer to the one used in
rlequant -- I'm sure rle-people gives permission.
(Another could be one used in ImageMagick; I have not tested it, so I
can say nothing about it.)
==clip==
==clip==
Some minor bugs in human interface are:
Key pressings and cursor clicks goes to a buffer; Often it happens
that I make click errors or press keyboard when cursor is in the wrong
place. It is very annoying when you have waited image to come about
five minutes and then it is gone away immediately.
The buffer should be cleaned when the image is complete.
Also, good idea is to wait few seconds before activating keyboard
and mouse for XV after the image is completed.
Often it happens that image pops to the screen quickly, just when
I'm writing something with editor or such. Those key pressings
then go to XV and image has gone or something weird.
In the color editor, when I turn a color meter and release it, XV
updates the images. It is impossible to change all RGB values first
and then get the updated image. It is annoying wait image to be
updated when the setting are not ready yet.
I suggest of adding an 'apply' button to update the exchanges done.
==clip==
From: andreasa@dhhalden.no (ANDREAS ARFF)
Subject: Re: Newsgroup Split
Lines: 40
Nntp-Posting-Host: pc110
Organization: Ostfold College
In article <1quvdoINN3e7@srvr1.engin.umich.edu> tdawson@engin.umich.edu (Chris Herringshaw) writes:
>From: tdawson@engin.umich.edu (Chris Herringshaw)
>Subject: Newsgroup Split
>Date: 19 Apr 1993 19:43:52 GMT
>Concerning the proposed newsgroup split, I personally am not in favor of
>doing this.  I learn an awful lot about all aspects of graphics by reading
>this group, from code to hardware to algorithms.  I just think making 5
>different groups out of this is a wate, and will only result in a few posts
>a week per group.  I kind of like the convenience of having one big forum
>for discussing all aspects of graphics.  Anyone else feel this way?
>Just curious.
>
>
>Daemon
>
Actuallay I don't, but on the other hand I don't support the idea of having
one newsgroup for every aspect of graphics programming as proposed by Brian,
in his reply to my original posting.
I would suggest a looser structure more like a comp.graphics.programmer,
comp.graphics.hw_and_sw
The reason for making as few groups as possible is for the same reason you
say we shouldn't spilt up, not to get to few postings every day.
I takes to much time to browse through all postings just to find two or
three I'm interested in.
I understand and agree when you say you want all aspects of graphics in one
meeting. I agree to some extension. I see news as a forum to exchange ideas,
help others or to be helped. I think this is difficult to achive if there
are so many different things in one meeting.
Good evening netters|-)
Arff
"Also for the not religous confessor, there is a mystery of higher values,
who's birth mankind - to the last - builds upon. They are indisputible. And
often disregarded. Seldom you hear them beeing prized, as seldom as you hear
a seeing man prizeing what he sees." Per Lagerkvist, The Fist
(Free translation from Swedish)
--Andreas Arff  andreasa@dhhalden.no--
From: jbrandt@NeoSoft.com (J Brandt)
Subject: Beta Testers Wanted for Graphics Libraries
Organization: NeoSoft Communications Services -- (713) 684-5900
Keywords: xeg ceg beta imsl vni x graphics
Lines: 48
Visual Numerics Inc. (formerly IMSL and Precision Visuals) is in the
process of securing sites for beta testing X Exponent Graphics 1.0
and C Exponent Graphics 2.0.  (Both X Exponent Graphics and C Exponent
Graphics are 3GL products).  The beta period is from April 26 through
June 18.  The platform is HP9000/700 running under OS 8.07 with
ansi C 8.71 compiler.  The media will be sent on 4mm DAT cartridge
tape.  Here are some of the key facts about the two products.
X Exponent Graphics 1.0 key facts:
1. Complete collection of high-level 2D and 3D application plot types
available through a large collection of X resources.
2. Cstom widget for OSF/Motif developers.
3. Built-in interactive GUI for plot customization.
4. Easily-implemented callbacks for customized application feedback.
5. XEG 1.0, being built on the Xt Toolkit provides the user a widget
library that conforms to the expected syntax and standards familar
to X programmers.
6. XEG will also be sold as a bundle with Visual Edge's UIM/X product.
This will enable user to use a GUI builder to create the graphical
layout of an application.
C Exponent Graphics 2.0 key facts:
1. Written in C for C application programmers/developers.  The library
is 100% written in C, and the programming interface conforms to C
standards, taking advantage fo the most desirable features of C.
2. Build-in GUI for interactive plot customization.  Through mouse
interaction, the user has complete interactive graph output control
with over 200 graphics attributes for plot customization.
3. Large collection of high-level application functions for "two-call"
graph creation.  A wide variety of 2D and 3D plot types are available
with minimal programming effort.
4. User ability to interrupt and control the X event.  By controlling
the X event loop, when the user use the mouse to manipulate the  plot
the user can allow CEG to control the event loop or the user can
control the event loop.
If anyone is interested in beta testing either of the products, please
contact Wendy Hou at Visual Numerics via email at hou@imsl.com or call
713-279-1066.
--
Jaclyn Brandt
jbrandt@NeoSoft.com
--
From: "danny hawrysio" <danny.hawrysio@canrem.com>
Subject: radiosity
Reply-To: "danny hawrysio" <danny.hawrysio@canrem.com>
Organization: Canada Remote Systems
Distribution: comp
Lines: 9
-> I am looking for source-code for the radiosity-method.
I don't know what kind of machine you want it for, but the program
Radiance comes with 'C' source code - I don't have ftp access so I
couldn't tell you where to get it via that way.
--
Canada Remote Systems - Toronto, Ontario
416-629-7000/629-7044
From: andreasa@dhhalden.no (ANDREAS ARFF)
Subject: Re: Newsgroup Split
Lines: 41
Nntp-Posting-Host: pc137
Organization: Ostfold College
In article <NERONE.93Apr20085951@sylvester.cc.utexas.edu> nerone@ccwf.cc.utexas.edu (Michael Nerone) writes:
>From: nerone@ccwf.cc.utexas.edu (Michael Nerone)
>Subject: Re: Newsgroup Split
>Date: 20 Apr 93 08:59:51
>In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
>
>  CH> Concerning the proposed newsgroup split, I personally am not in
>  CH> favor of doing this.  I learn an awful lot about all aspects of
>  CH> graphics by reading this group, from code to hardware to
>  CH> algorithms.  I just think making 5 different groups out of this
>  CH> is a wate, and will only result in a few posts a week per group.
>  CH> I kind of like the convenience of having one big forum for
>  CH> discussing all aspects of graphics.  Anyone else feel this way?
>  CH> Just curious.
>
>I must agree.  There is a dizzying number of c.s.amiga.* newsgroups
>already.  In addition, there are very few issues which fall cleanly
>into one of these categories.
>
>Also, it is readily observable that the current spectrum of amiga
>groups is already plagued with mega-crossposting; thus the group-split
>would not, in all likelihood, bring about a more structured
>environment.
>
>--
>   /~~~~~~~~~~~~~~~~~~~\/~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\
>  /    Michael Nerone   \"I shall do so with my customary lack of tact; and\
> /   Internet Address:   \since you have asked for this, you will be obliged\
>/nerone@ccwf.cc.utexas.edu\to pardon it."-Sagredo, fictional char of Galileo.\
Maybe I should point out that we are not talking about c.s.amiga.*.
Only comp.graphics.
Arff
"Also for the not religous confessor, there is a mystery of higher values,
who's birth mankind - to the last - builds upon. They are indisputible. And
often disregarded. Seldom you hear them beeing prized, as seldom as you hear
a seeing man prizeing what he sees." Per Lagerkvist, The Fist
(Free translation from Swedish)
--Andreas Arff  andreasa@dhhalden.no--
From: srlnjal@grace.cri.nz
Subject: CorelDraw Bitmap to SCODAL
Organization: Industrial Research Ltd., New Zealand.
Lines: 10
NNTP-Posting-Host: grv.grace.cri.nz
Does anyone know of software that will allow
you to convert CorelDraw (.CDR) files
containing bitmaps to SCODAL, as this is the
only format our bureau's filmrecorder recognises.
Jeff Lyall
Inst.Geo.Nuc.Sci.Ltd
Lower Hutt New Zealand
From: idr@rigel.cs.pdx.edu (Ian D Romanick)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Article-I.D.: pdxgate.7306
Organization: Portland State University, Computer Science Dept.
Lines: 23
In article <C5nF8t.Gsq@news.cso.uiuc.edu> osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes:
>In article <1993Apr17.192947.11230@sophia.smith.edu> orourke@sophia.smith.edu (Joseph O'Rourke) writes:
>>	A fast polygon routine to do WHAT?
>To draw polygons of course.  Its a VGA mode 13h (320x200) game, done in C and
>ASM.  I need a faster way to draw concave polygons that the method I have right
>now, which is very slow.
What kind of polygons?  Shaded?  Texturemapped?  Hm?  More comes into play with
fast routines than just "polygons".  It would be nice to know exaclty what
system (VGA is a start, but what processor?) and a few of the specifics of the
implementation.  You need to give  more info if you want to get any answers! :P
- Ian Romanick
Dancing Fool of Epsilon
[]--------------------------------------------------------------------[]
| Were the contained thoughts 'opinions',     EPN.NTSC.quality = Best|
| PSU would probably not agree with them.                            |
|                                                                    |
| "Look, I don't know anything about                                 |
| douche, but I do know Anti-Freeze                                  |
| when I see it!" - The Dead Milkmen                                 |
[]--------------------------------------------------------------------[]
From: xz775327@longs.LANCE.ColoState.Edu (Xia Zhao)
Subject: more on radiosity
Nntp-Posting-Host: zirkel.lance.colostate.edu
Organization: Colorado State U. Engineering College
Keywords: radiosity
Lines: 45
In article <1993Apr19.131239.11670@aragorn.unibe.ch>, you write:
|>
|>
|> Let's be serious... I'm working on a radiosity package, written in C++.
|> I would like to make it public domain.  I'll announce it in c.g. the minute
|> I finished it.
|>
|> That were the good news. The bad news: It'll take another 2 months (at least)
|> to finish it.
Are you using the traditional radiosity method, progressive refinement, or
something else in your package?
If you need to project patches on the hemi-cube surfaces, what technique are
you using?  Do you have hardware to facilitate the projection?
|>
|> In the meantime you may have a look at the file
|>   Radiosity_code.tar.Z
|> located at
|>   compute1.cc.ncsu.edu
What are the guest username and password for this ftp site?
|>
|> (there are some other locations; have a look at archie to get the nearest)
|>
|> Hope that'll help.
|>
|> Yours
|>
|> Stephan
|>
Thanks, Stephan.
Josephine
From: kaufman@Xenon.Stanford.EDU (Marc T. Kaufman)
Subject: Re: TIFF: philosophical significance of 42
Reply-To: kaufman@CS.Stanford.EDU
Organization: CS Department, Stanford University, California, USA
Lines: 33
joachim@kih.no (joachim lous) writes:
>ulrich@galki.toppoint.de wrote:
-> According to the TIFF 5.0 Specification, the TIFF "version number"
-> (bytes 2-3) 42 has been chosen for its "deep philosophical
-> significance".
-> Last week, I read the Hitchhikers Guide To The Galaxy, and rotfl the
-> second time. (After millions of years of calculation, the second-best
-> computer of all time reveals that 42 is the answer to the question
-> about life, the universe and everything)
-> Is this actually how they picked the number 42?
>Yes.
-> Does anyone have any  other suggestions where the 42 came from?
At this moment the King, who had been for some time busily writing in
his note-book, called out "Silence!" and read out from his book
"Rule Forty-two. All persons more than a mile high to leave the court."
Everybody looked at Alice.
"I'm not a mile high," said Alice.
"You are," said the King.
"Nearly two miles high," added the queen.
"Well, I sha'n't go, at any rate," said Alice; "besides, that's not
a regular rule: you invented it just now."
"It's the oldest rule in the book," said the King.
"Then it ought to be Number One," said Alice.
--
Marc Kaufman (kaufman@CS.Stanford.EDU)
From: ddeciacco@cix.compulink.co.uk (David Deciacco)
Subject: Re: Another CVIEW question (wa
Reply-To: ddeciacco@cix.compulink.co.uk
Lines: 5
In-Reply-To: <20APR199312262902@rigel.tamu.edu> lmp8913@rigel.tamu.edu (PRESTON, LISA M)
I have a trident card and fullview works real gif jpg try it#
dave
From: seth@north13.acpub.duke.edu (Seth Wandersman)
Subject: univesa driver
Reply-To: seth@north13.acpub.duke.edu (Seth Wandersman)
Lines: 7
Nntp-Posting-Host: north13.acpub.duke.edu
I got the univesa driver available over the net. I thought that finally
my 1-meg oak board would be able to show 680x1024 256 colors. Unfortunately a
program still says that I can't do this. Is it the fault of the program (fractint)
or is there something wrong with my card.
univesa- a free driver available over the net that makes many boards
vesa compatible.
From: ednobles@sacam.OREN.ORTN.EDU (Edward d Nobles)
Subject: windows imagine??!!
Organization: Oak Ridge National Laboratory
X-Newsreader: TIN [version 1.1 PL9]
Lines: 10
I sent off for my copy today...   Snail Mail.   Hope to get it back in
about ten days.  (Impulse said "a week".)
I hope it's as good as they claim...
Jim Nobles
(Hope I have what it takes to use it...  :>)
From: osprey@ux4.cso.uiuc.edu (Lucas Adamski)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Organization: University of Illinois at Urbana-Champaign
Lines: 19
In article <7306@pdxgate.UUCP> idr@rigel.cs.pdx.edu (Ian D Romanick) writes:
>What kind of polygons?  Shaded?  Texturemapped?  Hm?  More comes into play with
>fast routines than just "polygons".  It would be nice to know exaclty what
>system (VGA is a start, but what processor?) and a few of the specifics of the
>implementation.  You need to give  more info if you want to get any answers! :P
I don't want texture mapped, cause if I did I'd asked for them. :)  Just
a simple and fast routine to do filled polygons.  As for the processor, it'd
be for a minimum of a 286... maybe 386 if I can't find a good one for 286s.
Ideally, I want a polyn function that can clip to a user-defined viewport,
and write to an arbitrary location in memory.  Of course the chances of
finding something like that are pretty remote, so I guess I'd need the source
with it.  Oh, and I guess it would need to be in ASM otherwise it'd be too
slow.  I've seen some polygon routines in C, and they've all been waaay too
slow.  Its for a 3D vector graphics program.  I've been hunting high and low
for a polyn function in ASM, and I can't find one anywhere that I can use.
I've found one or two polyn functions, but my ASM is pretty bad, so I won't
even try to rewrite them. :)
//Lucas.
From: yoo@engr.ucf.edu (Hoi Yoo)
Subject: Ribbon Information ?
Organization: engineering, University of Central Florida, Orlando
Distribution: usa
Lines: 20
Does anyone out there have or know of, any kind of utility program for
Ribbons?
Ribbons are a popular representation for 2D shape.  I am trying to
find symmetry axis in a given any 2D shape using ribbons.
Any suggestions will be greatly appreciated how to start program.
Thanks very much in advance,
Hoi
yoo@engr.ucf.edu
Subject: Need rgb data from saved images
From: <JER114@psuvm.psu.edu>
Organization: Penn State University
Lines: 4
Could someone please help me find a program or figure out how to extract a li
st of R G B values for each pixel in an image.  I can convert between tga and s
everal other popular formats but I need the R G B values for use in a program I
am writing.  Thanks for the help
From: quan@sol.surv.utas.edu.au (Stephen Quan)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Organization: University of Tasmania, Australia.
Lines: 22
osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes:
>In article <1993Apr17.192947.11230@sophia.smith.edu> orourke@sophia.smith.edu (Joseph O'Rourke) writes:
>>In article <C5n3x0.B5L@news.cso.uiuc.edu> osprey@ux4.cso.uiuc.edu (Lucas Adamski) writes:
>>>[...], but I'm looking for a fast polygon routine to be used in a 3D game.
>>A fast polygon routine to do WHAT?
>To draw polygons of course.  Its a VGA mode 13h (320x200) game, [...]
Hi, I've come across a fast triangle fill-draw routine for mode 13h.  By
calling this routine enough times, you have a fast polygon drawing routine.
I think I ftp'ed from wuarchive.wustl.edu:/pub/MSDOS_UPLOADS/programming.
I have a copy of it so I reupload it there.  The triangle.txt file has this
to say :
>  C and inline assembly source for a VGA mode 13h triangle drawer.
--
Stephen Quan (quan@sol.surv.utas.edu.au)      Tel : 002 202844 (local)
Research Fellow, Computer Scientist,          Fax : 002 240282 (local)
Centre for Spatial Information Systems,       Tel : 61 02 202844
University of Tasmania, Australia.            Fax : 61 02 240282
From: ykim@cs.columbia.edu (Yong Su Kim)
Subject: Fast wireframe graphics
Distribution: usa
Organization: Columbia University Department of Computer Science
Lines: 29
I am working on a program to display 3d wireframe models with the user
being able to arbitrarily change any of the viewing parameters.  Also,
the wireframe objects are also going to have dynamic attributes so
that they can move around while the user is "exploring" the wireframe
world.
To do this, I am thinking of using the SRGP package described in the
Van Dam, Foley and Feiner book, but I was wondering if there was
another PD graphics package out there which was faster.  I would like
to make the program as fast as possible so that it provides
satisfactory real time performance on a Sun IPX.
Ideally, I'm looking for a PD graphics package which will allow me to
open a new window under X, and allow me to draw lines within the
window.  Also, it would also need to have some sort of event driven
interaction handling since the user is going to move around the
wireframe models using the keyboard.
If you know or wrote such a package, I would be grateful if you could
direct me to a ftp site which contains the package.
Thank you.
--
===============================================================================
Yong Su Kim, Class of 1993		|  Internet: yk4@cunixb.cc.columbia.edu
Columbia College, Columbia University   |        or  ykim@cs.columbia.edu
From: olson@anchor.esd.sgi.com (Dave Olson)
Subject: Re: SGI sales practices (Was: Crimson (Was: Kubota Announcement?))
Organization:  Silicon Graphics, Inc.  Mountain View, CA
Lines: 90
In <1qjrec$qem@network.ucsd.edu> spl@ivem.ucsd.edu (Steve Lamont) writes:
| What I *am* annoyed about is the fact that we were led to believe that
| we *would* be able to upgrade to a multiprocessor version of the
| Crimson without the assistance of a fork lift truck.
It should have been made fairly clear that the *most* Crimson would
ever get was a 150 (75 old style) MHz CPU upgrade.  Certainly this
was mentioned on comp.sys.sgi on more than one occasion as being
likely.  If our sales folks were saying otherwise, they were either
confused, or less than honest/ethical, or somebody further up the
chain inside SGI was misleading them.
| I'm also annoyed about being sold *several* Personal IRISes at a
| previous site on the understanding *that* architecture would be around
| for a while, rather than being flushed.
There were 4 versions (20, 25, 30, 35), although admittedly the 30 came
out at the same time as the 35, over a period of 2 1/2 years.  The
chassis simply couldn't be pushed any further.  I'd say 4 years was
a pretty good lifespan, myself, for a system design in this day and
age.  Getting the 35 to work caused a lot of gray hairs in both the
hardware and product design groups; we would have been out of our
minds to push it further, and I *know* that was made clear, almost
from the day the 35 started shipping.  We had one last kicker in
the form of the Elan graphics, which made 3 graphics versions over
its lifespan, which I also think is pretty good.
| Now I understand that SGI is responsible to its investors and has to
| keep showing a positive quarterly bottom line (odd that I found myself
| pressured on at least two occasions to get the business on the books
| just before the end of the quarter), but I'm just a little tired of
| getting boned in the process.
Please, by all means send a complaint letter through SGI support
or sales on your concerns.  There should be no reason for sales folks
to misrepresent future upgrades to customers (sure, sometimes there
will be confusion for a while, over whether an upgrade will be available,
but that shouldn't last too long, and doesn't seem to be what you
are referring to).
Yes, the sales folks *do* get bonus's at the end of some (all?) quarters,
but that is pretty common industry wide, and sometimes that can result
in good deals for customers (sometimes it probably pushes folks into
systems that aren't what they need, I'm sure, but nobody is *forcing*
you to buy at end of quarter, after all...)
| Maybe it's because my lab buys SGIs in onesies and twosies, so we
| aren't entitled to a "peek under the covers" as the Big Kids (NASA,
| for instance) are.  This lab, and I suspect that a lot of other labs
They don't get all that long a lead time either; although certainly
they get presentations on possible new products, and their opinions
may well influence the end product, but that also is life in the
industry.  We can't design systems that meet just their needs, or we
won't sell too many systems, after all (which is not to say that we
don't have some niche products, like Reality Engine).
| and organizations, doesn't have a load of money to spend on computers
| every year, so we can't be out buying new systems on a regular basis.
| The boxes that we buy now will have to last us pretty much through the
| entire grant period of five years and, in some case, beyond.  That
| means that I need to buy the best piece of equipment that I can when I
| have the money, not some product that was built, to paraphrase one
| previous poster's words, 'to fill a niche' to compete with some other
| vendor.  I'm going to be looking at this box for the next five years.
| And every time I look at it, I'm going to think about SGI and how I
| could have better spent my money (actually *your* money, since we're
| supported almost entirely by Federal tax dollars).
But surely you don't expect a system you buy now for a five year
period to be constantly upgradable over that entire five year
period?  That's a rather unreasonable expectation, in my experience
(with workstations/microcomputers).  Supported, and parts available,
yes, but certainly not upgradable to the latest and greatest!
| Now you'll have to pardon me while I go off and hiss and fume in a
| corner somewhere and think dark, libelous thoughts.
I missed your first posting, but as I say, by all means share your
frustation with somebody at a level inside SGI where it might
have an effect (not immediate, I'm sure, but complaints aren't
going to be ignored, and *may* affect future plans, if we
hear similar things from more than one person/site).
All of the above is, as usual, my personal opinion, not SGI's.
--
Let no one tell me that silence gives consent,  |   Dave Olson
because whoever is silent dissents.             |   Silicon Graphics, Inc.
Maria Isabel Barreno                        |   olson@sgi.com
PS: I start my sabbatical 29 May, ask those questions now ;)
From: jr0930@eve.albany.edu (REGAN JAMES P)
Subject: Pascal-Fractals
Organization: State University of New York at Albany
Thanks in advance
Lines: 5
--
|||||||||||   		 	   |||||||||||
_|||||||||||_______________________|||||||||||_      jr0930@eve.albany.edu
-|||||||||||-----------------------|||||||||||-     jr0930@Albnyvms.bitnet
|||||||||||  GO HEAVY OR GO HOME  |||||||||||
From: pes@hutcs.cs.hut.fi (Pekka Siltanen)
Subject: Re: detecting double points in bezier curves
Nntp-Posting-Host: hutcs.cs.hut.fi
Organization: Helsinki University of Technology, Finland
Lines: 26
In article <1993Apr19.234409.18303@kpc.com> jbulf@balsa.Berkeley.EDU (Jeff Bulf) writes:
>In article <ia522B1w165w@oeinck.waterland.wlink.nl>, ferdinan@oeinck.waterland.wlink.nl (Ferdinand Oeinck) writes:
>|> I'm looking for any information on detecting and/or calculating a double
>|> point and/or cusp in a bezier curve.
>|>
>|> An algorithm, literature reference or mail about this is very appreciated,
>
>There was a very useful article in one of the 1989 issues of
>Transactions On Graphics. I believe Maureen Stone was one of
>the authors. Sorry not to be more specific. I don't have the
>reference here with me.
Stone, DeRose: Geometric characterization of parametric cubic curves.
ACM Trans. Graphics 8 (3) (1989) 147 - 163.
Manocha, Canny: Detecting cusps and inflection points in curves.
Computer aided geometric design 9 (1992) 1-24.
Pekka Siltanen
From: ricky@watson.ibm.com (Rick Turner)
Subject: Re: CorelDraw Bitmap to SCODAL
Disclaimer: This posting represents the poster's views, not necessarily those of IBM.
Nntp-Posting-Host: danebury.hursley.ibm.com
Organization: IBM T.J. Watson Research
Lines: 4
My CorelDRAW 3.0.whatever write SCODL files directly. Look under File|Export
on the main menu.
Rick
From: joachim@kih.no (joachim lous)
Subject: Re: TIFF: philosophical significance of 42
Organization: Kongsberg Ingeniorhogskole
Lines: 28
NNTP-Posting-Host: samson.kih.no
X-Newsreader: TIN [version 1.1 PL8]
Marc T. Kaufman (kaufman@Xenon.Stanford.EDU) wrote:
> -> Does anyone have any  other suggestions where the 42 came from?
>    At this moment the King, who had been for some time busily writing in
> his note-book, called out "Silence!" and read out from his book
> "Rule Forty-two. All persons more than a mile high to leave the court."
>    Everybody looked at Alice.
>    "I'm not a mile high," said Alice.
>    "You are," said the King.
>    "Nearly two miles high," added the queen.
>    "Well, I sha'n't go, at any rate," said Alice; "besides, that's not
> a regular rule: you invented it just now."
>    "It's the oldest rule in the book," said the King.
>    "Then it ought to be Number One," said Alice.
Does anybody have a collection of occurances of 42? (before and after
The Guide). If not, I would like to receive any odd bits you might know.
postings to alt.fan.douglas.adams.
--
_______________________________
/ _ L*   /  _  / .    /      _  /_  "One thing is for sure: The sheep
/  _)    /()(/(/)//)) /_ ()(/_) / /  Is NOT a creature of the earth."
/ \_)~  (/ Joachim@kih.no       / /
/_______________________________/ / -The back-masking on 'Haaden II'
/_______________________________/  from 'Exposure' by Robert Fripp.
From: se92psh@brunel.ac.uk (Peter Hauke)
Subject: Re: TIFF: philosophical significance of 42
Organization: Brunel University, Uxbridge, UK
X-Newsreader: TIN [version 1.1 PL8]
Lines: 20
joachim lous (joachim@kih.no) wrote:
: ulrich@galki.toppoint.de wrote:
: > Does anyone have any  other suggestions where the 42 came from?
Yep, here's a theory that I once heard bandied around.  Rather than thinking
of the number think of the sound. For Tea Two. A sort of anagram on Tea For Two,
Two for Tea, For Tea Two.
:-)
Peter
--
***********************************
* Peter Hauke @ Brunel University *
*---------------------------------*
*      se92psh@brunel.ac.uk       *
***********************************
From: jr0930@eve.albany.edu (REGAN JAMES P)
Subject: Re: Pascal-Fractals
Organization: State University of New York at Albany
Lines: 10
Apparently, my editor didn't do what I wanted it to do, so I'll try again.
i'm looking for any programs or code to do simple animation and/or
drawing using fractals in TurboPascal for an IBM
Thanks in advance
--
|||||||||||   		 	   |||||||||||
_|||||||||||_______________________|||||||||||_      jr0930@eve.albany.edu
-|||||||||||-----------------------|||||||||||-     jr0930@Albnyvms.bitnet
|||||||||||  GO HEAVY OR GO HOME  |||||||||||
From: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Subject: irit to pov ?
Keywords: raytracer, format conversion
Reply-To: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Organization: Technische Hochschule Ilmenau
Lines: 8
Nntp-Posting-Host: merkur.prakinf.tu-ilmenau.de
Has anybody made a converter from irit's .irt or .dat format to
.pov format ?
Thanks!
--
Sebastian Schmidt
TU Ilmenau Institut f. praktische Informatik
From: cs89ssg@brunel.ac.uk (Sunil Gupta)
Subject: Re: RTrace 8.2.0
Organization: Brunel University, Uxbridge, UK
Lines: 12
X-Newsreader: TIN [version 1.1 PL8]
Comp. Graphics/CAD (cgcad@bart.inescn.pt) wrote:
: There is a new version of the RTrace ray-tracing package (8.2.0) at
: asterix.inescn.pt [192.35.246.17] in directory pub/RTrace.
: Check the README file.
cant seem to reach the site from over here:
>#ping 192.35.246.17
>ICMP Net Unreachable from gateway nsn-FIX-pe.sura.net (192.80.214.253)
>for icmp from ccws-24.brunel.ac.uk (134.83.176.30) to 192.35.246.17
Is it possible for you to upload to a more mainstream ftp place?
From: jbickers@templar.actrix.gen.nz (John Bickers)
Subject: Re: HELP!!! GRASP
Organization: TAP
Lines: 19
Quoted from <1993Apr20.125147.10665@genes.icgeb.trieste.it> by oberto@genes.icgeb.trieste.it (Jacques Oberto):
> file, check in the 'graphics' directories under *grasp.  The problem
> is that the .clp files you generate cannot be decoded by any of
> the many pd format converters I have used. Any hint welcome!
The gl2p1.lzh stuff under gfx/show on the Aminet sites includes a
utility called pic2hl, that is a filter for HamLab that can handle
the most commonly used kinds of .PIC and .CLP files.
The biggest problem is that the .CLP files don't usually contain a
palette, so you need to convert a .PIC with the right palette
first (which creates a "ram:picpal" file), and then convert the
.CLP files.
> Jacques Oberto  <oberto@genes.icgeb.trieste.it>
--
*** John Bickers, TAP.                   jbickers@templar.actrix.gen.nz ***
***    "Radioactivity - It's in the air, for you and me" - Kraftwerk    ***
From: borst@cs.utwente.nl (Pim Borst)
Subject: PBM-PLUS sources, where?
Nntp-Posting-Host: utis116.cs.utwente.nl
Organization: University of Twente, Dept. of Computer Science
Lines: 7
Hi everybody,
Can anyone name an anonymous ftp-site where I can find the sources
of the PBM-PLUS package (portable bit/gray/pixel map).
I would like to compile and run it on a Sun Sparcstation.
Thanks!
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: Fractals? What good are they ?
Organization: Purdue University
Lines: 16
In article <mdpyssc.2@fs1.mcc.ac.uk> mdpyssc@fs1.mcc.ac.uk (Sue Cunningham)
writes:
> We have been using Iterated Systems compression board to compress
> pathology images and are getting ratios of 40:1 to 70:1 without too
> much loss in quality. It is taking about 4 mins per image to compress,
> on a 25Mhz 486 but decompression is almost real time on a 386 in software
> alone.
How does that compare with JPEG on the same images and hardware as far
as size, speed, and image quality are concerned?
Despite my skeptical and sometimes nearly rabid postings
criticizing Barnsley and company, I am very interested in the
technique.  If I weren't I probably wouldn't be so critical. :-)
ab
Subject: Re: univesa driver
From: djlewis@ualr.edu
Organization: University of Arkansas at Little Rock
Nntp-Posting-Host: athena.ualr.edu
Lines: 13
In article <13622@news.duke.edu>, seth@north13.acpub.duke.edu (Seth Wandersman) writes:
>
> 	I got the univesa driver available over the net. I thought that finally
> my 1-meg oak board would be able to show 680x1024 256 colors. Unfortunately a
> program still says that I can't do this. Is it the fault of the program (fractint)
> or is there something wrong with my card.
> 	univesa- a free driver available over the net that makes many boards
> vesa compatible.
WHATS THIS  680x1024 256 color mode? Asking a lot of your hardware ?
Don Lewis
<djlewis@ualr.edu>
From: amann@iam.unibe.ch (Stephan Amann)
Subject: Re: more on radiosity
Reply-To: amann@iam.unibe.ch
Organization: University of Berne, Institute of Computer Science and Applied Mathematics, Special Interest Group Computer Graphics
Lines: 80
In article 66319@yuma.ACNS.ColoState.EDU, xz775327@longs.LANCE.ColoState.Edu (Xia Zhao) writes:
>
>
>In article <1993Apr19.131239.11670@aragorn.unibe.ch>, you write:
>|>
>|>
>|> Let's be serious... I'm working on a radiosity package, written in C++.
>|> I would like to make it public domain.  I'll announce it in c.g. the minute
>|> I finished it.
>|>
>|> That were the good news. The bad news: It'll take another 2 months (at least)
>|> to finish it.
>
>
> Are you using the traditional radiosity method, progressive refinement, or
>  something else in your package?
>
My package is based on several articles about non-standard radiosity and
some unpublished methods.
The main articles are:
-  Cohen, Chen, Wallace, Greenberg :
A Progressive Refinement Approach to fast Radiosity Image Generation
Computer Graphics (SIGGRAPH), V. 22(No. 4), pp 75-84, August 1988
-  Silion, Puech
A General Two-Pass Method Integrating Specular and Diffuse Reflection
Computer Graphics (SIGGRAPH), V23(No. 3), pp335-344, July 1989
> If you need to project patches on the hemi-cube surfaces, what technique are
>  you using?  Do you have hardware to facilitate the projection?
>
I do not use hemi-cubes. I have no special hardware (SUN SPARCstation).
>
>|>
>|> In the meantime you may have a look at the file
>|>   Radiosity_code.tar.Z
>|> located at
>|>   compute1.cc.ncsu.edu
>
>
>  What are the guest username and password for this ftp site?
>
Use anonymous as username and your e-mail address as password.
>
>|>
>|> (there are some other locations; have a look at archie to get the nearest)
>|>
>|> Hope that'll help.
>|>
>|> Yours
>|>
>|> Stephan
>|>
>
>
>   Thanks, Stephan.
>
>
>    Josephine
Stephan.
----------------------------------------------------------------------------
Stephan Amann     SIG Computer Graphics, University of Berne, Switzerland
amann@iam.unibe.ch
Tel +41 31 65 46 79	   Fax +41 31 65 39 65
Projects: Radiosity, Raytracing, Computer Graphics
----------------------------------------------------------------------------
Subject: XV for MS-DOS !!!
From: NO E-MAIL ADDRESS@eicn.etna.ch
Organization: EICN, Switzerland
Lines: 42
Hi !!! This is the response for Wayne Michael...and certainly for other-one :-)
I'm sorry for...
1)  The late of the answer but I couldn't find xv221 for msdos 'cause
I forgot the address...but I've retrieve it..
2)  Posting this answer here in comp.graphics 'cause I can't use e-mail,
not yet....
2) My bad english 'cause I'm a Swiss and my language is french....
After a long time I retrieve the address where you can find XV for Dos...
Site	: omnigate.clarkson.edu
Aliases	: grape.ecs.clarkson.edu
Number	: 128.153.4.2
/pub/msdos/djgpp/pub
it's xv221.zip (?) I think...
Certainly you read the other answer from Kevin Martin... He write about DV/X
(?).
What is it ?????? Could Someone answer ????
Thanx in advance....
--
---------------------------------------------------------------------
*								    *
*  Pascal PERRET     		|	perret@eicn.etna.ch         *
*  Ecole d'ing�nieur ETS	|	(Not Available at this time)*
*  2400 Le LOCLE		|				    *
*  Suisse 							    *
*		     !!!! Enjoy COMPUTER !!!!			    *
*								    *
---------------------------------------------------------------------
From: fombaron@ufrima.imag.fr (FOMBARON marc)
Subject: 3d-Studio V2.01 : Any differences with previous version
Keywords: 3d studio 2.01
Nntp-Posting-Host: boole-imag
Organization: University of Grenoble (France)
Lines: 9
Are there significant differences between V2.01 and V2.00 ?
Thank you for helping
Marc.
--
_/_/  _/_/   e-mail : Marc.Fombaron@ufrima.imag.fr
_/ _/_/ _/
_/  _/  _/  _/     _/    _/_/_/   _/_/_/_/   _/  _/_/_/_/  Marc Fombaron.
_/      _/  _/     _/  _/      _/ _/     _/  _/  _/     _/  Grenoble.
From: freemant@dcs.glasgow.ac.uk (Toby Freeman,TJF,G151,3344813,OCT95, )
Subject: Re: CorelDraw Bitmap to SCODAL
Nntp-Posting-Host: speedwell
Reply-To: freemant@dcs.glasgow.ac.uk
Organization: Dept. of Computing Science, Glasgow University, Glasgow.
Lines: 38
>Does anyone know of software that will allow
>you to convert CorelDraw (.CDR) files
>containing bitmaps to SCODAL, as this is the
>only format our bureau's filmrecorder recognises.
>
>Jeff Lyall
I used this combination for a while - A QCR-Z recorder,
I think - and as far as I remember Corel can EXPORT in
SCODAL (.scd) format.  Just select 'EXPORT' on the main
file menu.  This may not be implemented in earlier versions,
of course, in which case you're on your own!!!
Also, I seem to think that the s/w for the QCR-Z (at the time)
did strange (and very undesirable) things if ANY part of the
pic was outside the screen area on Corel.  I once spent an
afternoon painfully discovering that ONE pixel had somehow
strayed off-screen, causing my whole slide to be blank!!!
The QCR-Z also couldn't handle grad-fill over grad-fill -
so if you use a graduated colour background, if you then
grad-fill an object on top of this, the fill appears on the
final slide as a circle (I think) and TOTALLY IGNORES the
shape of the object being filled!!!
Of course, if the recorder isn't a QCR, you can ignore all
this and feel suitably :-)
Cheers, Toby.
____________________________________._.____._.__________._.__________._.______
____________________________________!  \__/  !__________!_!__________! !______
___!                            !___! . \/ . !___.__.___._.___.___._.! !__.___
___! Toby Freeman               !___! !\  /! !__/ __ \__! !__/ .__!_!. .__!___
___! Glasgow University         !___! !_\/_! !_! !__! !_! !_! <__.___! !______
___! freemant@uk.ac.glasgow.dcs !___! !____! !_! !__! !_! !__\___ \__! !______
___!____________________________!___! !____! !_! !__! !_! !_.____> !_! !__.___
____________________________________!_!____!_!__\____/__!_!_!_____/___\___!___
From: lulagos@cipres.cec.uchile.cl (admirador)
Subject: OAK VGA 1Mb. Please, I needd VESA TSR!!! 8^)
Originator: lulagos@cipres
Nntp-Posting-Host: cipres.cec.uchile.cl
Organization: Centro de Computacion (CEC), Universidad de Chile
Lines: 15
Hi there!...
Well, i have a 386/40 with SVGA 1Mb. (OAK chip 077) and i don't
have VESA TSR program for this card. I need it .
Please... if anybody can help me, mail me at:
lulagos@araucaria.cec.uchile.cl
Thanks.
Mackk.
_   /|
\'o.O'
=(___)=
U
Ack!
From: luis.nobrega@filebank.cts.com (Luis Nobrega)
Subject: PC PAINTBRUSH IV+
Distribution: world
Organization: The File Bank BBS - Fallbrook, CA  619-728-4318
Reply-To: luis.nobrega@filebank.cts.com (Luis Nobrega)
Lines: 11
I am trying to configure Zsoft's PC Paintbrush IV+ for use with my
Logitech Scanman 32 (hand scanner), but I can't get Paintbrush to
acknowledge the scanner. Is there anybody out there using Paintbrush
with a scanner, if so, can you help me out?
Thanks Luis Nobrega
----
*--------------------------------------------------------------------------*
| The File Bank BBS - 619-728-4318 - PCBoard v.14.5a/E10 - USR HST & DS    |
| 8 nodes / RIME / Internet / Largest Clipper file collection in the world |
*--------------------------------------------------------------------------*
From: joachim@kih.no (joachim lous)
Subject: Re: XV for MS-DOS !!!
Organization: Kongsberg Ingeniorhogskole
Lines: 20
NNTP-Posting-Host: samson.kih.no
X-Newsreader: TIN [version 1.1 PL8]
NOE-MAILADDRESS@eicn.etna.ch wrote:
> I'm sorry for...
>     1)  The late of the answer but I couldn't find xv221 for msdos 'cause
> 	I forgot the address...but I've retrieve it..
>     2)  Posting this answer here in comp.graphics 'cause I can't use e-mail,
>    ^^^  not yet....
>    2) My bad english 'cause I'm a Swiss and my language is french....
^^^
If french is your language, try counting in french in stead, maybe
it will work better.... :-)
_______________________________
/ _ L*   /  _  / .    /      _  /_  "One thing is for sure: The sheep
/  _)    /()(/(/)//)) /_ ()(/_) / /  Is NOT a creature of the earth."
/ \_)~  (/ Joachim@kih.no       / /
/_______________________________/ / -The back-masking on 'Haaden II'
/_______________________________/  from 'Exposure' by Robert Fripp.
From: mz@moscom.com (Matthew Zenkar)
Subject: Re: CView answers
Organization: Moscom Corp., E. Rochester, NY
Lines: 15
X-Newsreader: TIN [version 1.1 PL9]
Cyberspace Buddha (cb@wixer.bga.com) wrote:
: renew@blade.stack.urc.tue.nl (Rene Walter) writes:
: >over where it places its temp files: it just places them in its
: >"current directory".
: I have to beg to differ on this point, as the batch file I use
: to launch cview cd's to the dir where cview resides and then
: invokes it.  every time I crash cview, the 0-byte temp file
: is found in the root dir of the drive cview is on.
I posted this as well before the cview "expert".  Apparently, he thought he
knew better.
Matthew Zenkar
mz@moscom.com
From: emarciniak@email.bony.com
Subject: Image of pictures...
Lines: 8
Organization: ***
Hi there,
I am looking for advice on software/hardware package for making,
storing and processing of pictures. The ideal software would allow me to
cahnge size of the picture, edit it ( it means add text below, above...)
and the most important is it would have DOS command interface...
Thank you in advance...
emanuel marciniak
the bank of new york..
From: raynor@cs.scarolina.edu (Harold Brian Raynor)
Subject: Help needed on hidden line removal
Summary: Need help with Roberts algorithm/Hidden line removal
Keywords: hidden line graphics 3D
Organization: USC  Department of Computer Science
Distribution: comp
Lines: 20
I am looking for some information of hidden line removal using Roberts
algorithm.  Something with code, or pseudo code would be especially
helpful.
I am required to do this for a class, due Monday (we have very little
time to implement these changes, it is a VERY FAST paced class).  The
notes given in class leave a LOT to be desired, so I would vastly
appreciate any help.
Actually any algorithm would be nice (Roberts or no).  The main problem
is two objects intersecting in x and y dimensions, need to know which
lines to clip off so that one object will appear in front of another.
If you can give me an ftp address and filename, or even the name of a
good book, I'd REALLY appreciate it.
Thanks,
Brian Raynor
From: ed@cwis.unomaha.edu (Ed Stastny)
Subject: The OTIS Project (FTP sites for original art and images)
Keywords: Mr.Owl, how many licks...
Organization: University of Nebraska at Omaha
Lines: 227
-------------------------------------
+ ............The OTIS Project '93  +
+ "The Operative Term Is STIMULATE" +
-------------------------------------
---this file last updated..4-21-93---
WHAT IS OTIS?
OTIS is here for the purpose of distributing original artwork
and photographs over the network for public perusal, scrutiny,
and distribution.  Digital immortality.
The basic idea behind "digital immortality" is that computer networks
are here to stay and that anything interesting you deposit on them
will be around near-forever.  The GIFs and JPGs of today will be the
artifacts of a digital future.  Perhaps they'll be put in different
formats, perhaps only surviving on backup tapes....but they'll be
there...and someone will dig them up.
If that doesn't interest you... OTIS also offers a forum for critique
and exhibition of your works....a virtual art gallery that never closes
and exists in an information dimension where your submissions will hang
as wallpaper on thousands of glowing monitors.  Suddenly, life is
breathed into your work...and by merit of it's stimulus, it will
travel the globe on pulses of light and electrons.
Spectators are welcome also, feel free to browse the gallery and
let the artists know what you think of their efforts.  Keep your own
copies of the images to look at when you've got the gumption...
that's what they're here for.
---------------------------------------------------------------
WHERE?
OTIS currently (as of 4/21/93) has two FTP sites.
141.214.4.135 (projects/otis), the UWI site
sunsite.unc.edu (/pub/multimedia/pictures/OTIS), the SUNsite
(you can also GOPHER to this site for OTIS as well)
Merely "anonymous FTP" to either site on Internet and change to the
appropriate directory.  Don't forget to get busy and use the "bin"
command to make sure you're in binary.
OTIS has also been spreading to some dial-up BBS systems around North
America....the following systems have a substancial supply of
OTIStuff...
Underground Cafe (Omaha) (402.339.0179) 2 lines
CyberDen (SanFran?) (415.472.5527)  Usenet Waffle-iron
--------------------------------------------------------------
HOW DO YOU CONTRIBUTE?
What happens is...you draw a pretty picture or take a lovely
photo, get it scanned into an image file, then either FTP-put
it in the CONTRIB/Incoming directory or use UUENCODE to send it to me
(email addresses at eof) in email.  After the image is received,
it will be put into the correct directory.  Computer originated works
are also welcome.
OTIS' directories house two types of image files, GIF and JPG.
GIF and JPG files require, oddly enough, a GIF or JPG viewer to
see.  These viewers are available for all types of computers at
most large FTP sites around Internet.  JPG viewers are a bit
tougher to find.  If you can't find one, but do have a GIF viewer,
you can obtain a JPG-to-GIF conversion program which will change
JPG files to a standard GIF format.
OTIS also accepts animation files.
When you submit image files, please send me email at the same time
stating information about what you uploaded and whether it is to be
used (in publications or other projects) or if it is merely for people
to view.  Also, include some biographical information on yourself, we'll
be having info-files on each contributing artist and their works.  You
can also just upload a text-file of info about yourself (instead of
emailing).
If you have pictures, but no scanner, there is hope.  Merely send
copies to:
The OTIS Project
c/o Ed Stastny
PO BX 241113
Omaha, NE 68124-1113
I will either scan them myself or get them to someone who will
scan them.  Include an ample SASE if you want your stuff back.
Also include information on each image, preferably a 1-3 line
description of the image that we can include in the infofile in the
directory where it's finally put.  If you have preferences as to what
the images are to be named, include those as well.
Conversely, if you have a scanner and would like to help out, please
contact me and we'll arrange things.
If you want to submit your works by disk, peachy.  Merely send a 3.5"
disk to the above address (Omaha) and a SASE if you want your disk back.
This is good for people who don't have direct access to encoders or FTP,
but do have access to a scanner.  We accept disks in either Mac or IBM
compatible format.  If possible, please submit image files as GIF or
JPG.  If you can't...we can convert from most formats...we'd just rather
not have to.
At senders request, we can also fill disks with as much OTIS as they
can stand.  Even if you don't have stuff to contribute, you can send
a blank disk and an SASE (or $2.50 for disk, postage and packing) to
get a slab-o-OTIS.
As of 04/21/93, we're at about 18 megabytes of files, and growing.
Email me for current archive size and directory.
--------------------------------------------------------------------
DISTRIBUTION?
The images distributed by the OTIS project may be distributed freely
on the condition that the original filename is kept and that it is
not altered in any way (save to convert from one image format to
another).  In fact, we encourage files to be distributed to local
bulletin boards and such.  If you could, please transport the
appropriate text files along with the images.
It would also be nice if you'd send me a note when you did post images
from OTIS to your local bbs.  I just want to keep track of them so
participants can have some idea how widespread their stuff is.
It's the purpose of OTIS to get these images spread out as much as
possible.  If you have the time, please upload a few to your favorite
BBS system....or even just post this "info-file" there.  It would be
keen of you.
--------------------------------------------------------------------
USE?
If you want to use any of the works you find on the OTIS directory,
you'll have to check to see if permission has been granted and the
stipulations of the permission (such as free copy of publication, or
full address credit).  You will either find this in the ".rm" file for
the image or series of images...or in the "Artists" directory under the
Artists name.  If permission isn't explicitly given, then you'll have
to contact the artist to ask for it.  If no info is available, email
me (ed@cwis.unomaha.edu), and I'll get in contact with the artist for
you, or give you their contact information.
When you DO use permitted work, it's always courteous to let the artist
know about it, perhaps even send them a free copy or some such
compensation for their files.
---------------------------------------------------------------------
NAMING IMAGES?
Please keep the names of your files in "dos" format.  That means, keep
the filename (before .jpg or .gif) to eight characters or less.  The way
I usually do it is to use the initials of the artist, plus a three or
four digit "code" for the series of images, plus the series number.
Thus, Leonardo DeVinci's fifth mechanical drawing would be something
like:
ldmek5.gif     OR    ldmek5.jpg    OR    ldmech5.gif   ETC
Keeping the names under 8 characters assures that the filename will
remain intact on all systems.
----------------------------------------------------------------------
CREATING IMAGE FILES?
When creating image files, be sure to at least include your name
somewhere on or below the picture.  This gives people a reference in
case they'd like to contact you.  You may also want to include a title,
address or other information you'd like people to know.
-----------------------------------------------------------------------
HMMM?!
That's about it for now.  More "guidelines" will be added as needed.
Your input is expected.
-----------------------------------------------------------------------
DISCLAIMER:  The OTIS Project has no connection to the Church of OTIS
(a sumerian deity) or it's followers, be they pope, priest,
or ezine administrator.  We do take sacrifices and donations
however.
-----------------------------------------------------------------------
DISCLAIMER:  The OTIS Project is here for the distribution of original
image files.  The files will go to the public at large.
It's possible, as with any form of mass-media, that someone
could unscrupulously use your images for financial gain.
Unless you've given permission for that, it's illegal.  OTIS
takes no responsibility for this.  In simple terms, all rights
revert to the author/artist.  To leave an image on OTIS is to
give permission for it to be viewed, copied and distributed
electronically.  If you don't want your images distributed
all-over, don't upload them.  To leave an image on OTIS is
NOT giving permission to have it used in any publication or
broadcast that incurs profit (this includes, but is not
limited to, magazines, newsletters, clip-art software,
screen-printed clothing, etc).  You must give specific
permission for this sort of usage.
-----------------------------------------------------------------------
Remember, the operative term is "stimulate".  If you know of people
that'd be interested in this sort of thing...get them involved...kick'm
in the booty....offer them free food...whatever...
....e  (ed@cwis.unomaha.edu)
(ed@sunsite.unc.edu)
--
Ed Stastny           | OTIS Project, END PROCESS, SOUND News and Arts
PO BX 241113	     | FTP: sunsite.unc.edu (/pub/multimedia/pictures/OTIS)
Omaha, NE 68124-1113 |      141.214.4.135 (projects/otis)
---------------------- EMail: ed@cwis.unomaha.edu, ed@sunsite.unc.edu
From: KINDER@nervm.nerdc.ufl.edu (JIM COBB)
Subject: ET 4000 /W32 VL-Bus Cards
Organization: University of Florida, NERDC
Lines: 3
NNTP-Posting-Host: nervm.nerdc.ufl.edu
X-Newsreader: NNR/VM S_1.3.2
Does anyone know of a VL-Bus video card based on the ET4000 /W32 card?
If so: how much will it cost, where can I get one, does it come with more
than 1MB of ram, and what is the windows performance like?
From: mart4678@mach1.wlu.ca (Phil Martin u)
Subject: Re: Newsgroup Split
X-Newsreader: TIN [version 1.1 PL6]
Organization: Wilfrid Laurier University
Lines: 17
Chris Herringshaw (tdawson@engin.umich.edu) wrote:
: Concerning the proposed newsgroup split, I personally am not in favor of
: doing this.  I learn an awful lot about all aspects of graphics by reading
: this group, from code to hardware to algorithms.  I just think making 5
: different groups out of this is a wate, and will only result in a few posts
: a week per group.  I kind of like the convenience of having one big forum
: for discussing all aspects of graphics.  Anyone else feel this way?
: Just curious.
:
:
: Daemon
:
Yes. I also like knowing where to go to ask a question without getting
hell for putting it in the wrong newsgroup.
Phil Martin.
From: S_BRAUN@IRAV19.ira.uka.de (Thomas Braun)
Subject: sources for shading wanted
Organization: University of Karlsruhe, FRG
Lines: 22
Distribution: world
NNTP-Posting-Host: irav19.ira.uka.de
X-News-Reader: VMS NEWS 1.25
I'm looking for shading methods and algorithms.
Please let me know if you know where to get source codes for that.
Thanks a lot!
Thomas
+-----------------------------------------------------------------------------+
|                   Thomas Braun, Universitaet Karlsruhe                      |
|                    E-Mail : S_BRAUN@iravcl.ira.uka.de                       |
+-----------------------------------------------------------------------------+
+----------------------------------------------------------------------------+
|  \_\_\_\_\_ \_\_\_     Thomas Braun                                        |
|       \_     \_   \_    University Karlsruhe, Germany                      |
|        \_     \_\_\_     email:                                            |
|         \_     \_   \_    - S_Braun@iravcl.ira.uka.de                      |
|          \_     \_\_\_     - UKAY@dkauni2.bitnet                           |
+----------------------------------------------------------------------------+
From: dstampe@psych.toronto.edu (Dave Stampe)
Subject: Re: Fast polygon routine needed
Keywords: polygon, needed
Organization: Department of Psychology, University of Toronto
Lines: 27
sol.surv.utas.edu.au (Stephen Quan) writes:
>>>>[...], but I'm looking for a fast polygon routine to be used in a 3D game.
>>>A fast polygon routine to do WHAT?
>>To draw polygons of course.  Its a VGA mode 13h (320x200) game, [...]
>
>Hi, I've come across a fast triangle fill-draw routine for mode 13h.  By
>calling this routine enough times, you have a fast polygon drawing routine.
>
>I think I ftp'ed from wuarchive.wustl.edu:/pub/MSDOS_UPLOADS/programming.
>I have a copy of it so I reupload it there.  The triangle.txt file has this
>to say :
>
>>  C and inline assembly source for a VGA mode 13h triangle drawer.
>
Another source:  There's a poly blitter for mode y (mode x in 320x200)
at sunee.uwaterloo.ca.  Also there is REND386, an even faster 3D
renderer with VR extensions.
--------------------------------------------------------------------------
| My life is Hardware,                    |         Dave Stampe          |
| my destiny is Software,                 | dstampe@psych.toronto.edu    |
| my CPU is Wetware...                    | dstampe@sunee.uwaterloo.ca   |
| Am I a techno-psychologist, or just a psycho-engineer ??               |
--------------------------------------------------------------------------
From: chris@sarah.lerc.nasa.gov (Chris Johnston)
Subject: One day graphics/composites seminar
Organization: NASA Lewis Research Center, Cleveland, OH
Lines: 47
Distribution: world
Reply-To: chris@sarah.lerc.nasa.gov (Chris Johnston)
NNTP-Posting-Host: looney.lerc.nasa.gov
SAMPE, NCGA, The University of Akron, and NASA Lewis Research Center
is sponsoring:
COMPUTERS AND COMPOSITES
A one-day seminar devoted to practical applications of
computer workstations for efficient processing, design, and
Manufacture of composites
May 18, 1993
at
The University of Akron
Akron, Ohio
Speakers on:
Advancement in Graphics Visualization   Dr. Jay Horowitz, NASA
Integrated Product Development with     Mr. Michael R. Cowen
Network Workstations		          Sikorski Aircraft
Structural Analysis			 Mr. Brian Fite, NASA
Stereolithography			 Mr. Jason Williams, Penn State-Erie
Molecular and Physical Modeling	 Dr. Vassilios Galiatsato,
of Polymer Curing                       University of Akron
Process Modeling of Polymer
Matrix Composites			 Dr Ram Upadhyay, GE Corporate R&D
Registration Fees: $75.00 Advance, $100.00 on site (Includes box lunch)
Contact Gary Roberts, NASA Lewis Research Center (216) 433-344
or write:
SAMPE Regional Seminar
c/o Gary Roberts
NASA Lewis Research Center
21000 Brookpark Rd MS 49-1
Cleveland, Ohio 44135
Or Email to me, | and I'll get it to Gary.
|
\/
--
+---------------------------------------------------------------------------+
| Chris Johnston                  (216) 433-5029                            |
| Materials Engineer		  (216) 433-5033                            |
| NASA Lewis Research Center   Internet: chris@sarah.lerc.nasa.gov          |
| 21000 Brookpark Rd MS 105-1		 				    |
| Cleveland, OH 4413 USA	Resistance is futile!			    |
+---------------------------------------------------------------------------+
From: haberj@Informatik.TU-Muenchen.DE (Haber Joerg)
Subject: ray tracing spline surfaces
Keywords: ray tracing, splines
Originator: haberj@sunbulirsch4.mathematik.tu-muenchen.de
Organization: Technische Universitaet Muenchen, Germany
Lines: 17
Hi net!
Due to further investigation I would like to study the following article:
Peterson, "Ray tracing general B-Splines",
Proc. ACM Mountain Regional Conference, April 1986
Unfortunately I didn't find it in any library's register.
If there is anyone having access to this paper or knowing about a
library containing those proceedings (preferrably in Germany), please
let me know! Any help would be appreciated!
Thanks a lot,
Joerg Haber
--
Joerg Haber                	haberj@mathematik.tu-muenchen.de
Mathematisches Institut
TU Muenchen
From: nahess@mir.gatech.edu (Nicholas A. Hess)
Subject: Hitatchi Raster Format (HRF)?
Organization: USGS Center for Spatial Analysis Technologies
Lines: 19
NNTP-Posting-Host: mir.gatech.edu
Keywords: HRF
Our shop uses a package called CADCore - very good - to scan and
subsequently vectorize original maps into digital maps. The problem is that
once the raster file is loaded into the CADCore package, a header is added
to the .HRF file which makes it unreadable by the supplied converter. We
would like to be able to ship some of the already-altered raster images for
further use on our workstations. So, here are my questions:
(1) What is the Hitachi format? - I need this format so I can recognize
precisely what to strip out. I strongly suspect that it's a compressed
format - if so, then t might not be possible for me to strip out the
offending header.
(2) Are there any UNIX packages that read and recognize HRF? It would be
really nice to find some sort of "hrftopbm" converter out there. ;)
I've already searched some of the more well-known ftp sites which contain
graphics formats documentation, with no luck. So, if you know, or knwo
someone who knows - please email! Thanks.
From: echen@burn.ee.washington.edu (Ed Chen)
Subject: Windows BMP to Sun raster or others?
Article-I.D.: shelley.1r49iaINNc3k
Distribution: world
Organization: University of Washington
Lines: 11
NNTP-Posting-Host: burn.ee.washington.edu
Hi,
Anyone has a converter from BMP to any format that xview or xv can
handle?  This converter must run Unix..  I looked at the FAQ and downloaded
several packages but had no luck...  thanks in advance.
ed
echen@burn.ee.washington.edu
From: thester@nyx.cs.du.edu (Uncle Fester)
Subject: Re: CView answers
X-Disclaimer: Nyx is a public access Unix system run by the University
of Denver for the Denver community.  The University has neither
control over nor responsibility for the opinions of users.
Organization: Nyx, Public Access Unix at U. of Denver Math/CS dept.
Lines: 36
In article <5103@moscom.com> mz@moscom.com (Matthew Zenkar) writes:
>Cyberspace Buddha (cb@wixer.bga.com) wrote:
>: renew@blade.stack.urc.tue.nl (Rene Walter) writes:
>: >over where it places its temp files: it just places them in its
>: >"current directory".
>
>: I have to beg to differ on this point, as the batch file I use
>: to launch cview cd's to the dir where cview resides and then
>: invokes it.  every time I crash cview, the 0-byte temp file
>: is found in the root dir of the drive cview is on.
>
>I posted this as well before the cview "expert".  Apparently, he thought
he
>knew better.
>
>Matthew Zenkar
>mz@moscom.com
Are we talking about ColorView for DOS here?
I have version 2.0 and it writes the temp files to its own
current directory.
What later versions do, I admit that I don't know.
Assuming your "expert" referenced above is talking about
the version that I have, then I'd say he is correct.
Is the ColorView for unix what is being discussed?
Just mixed up, confused, befuddled, but genuinely and
entirely curious....
Uncle Fester
--
:     What God Wants      :  God wants gigolos          :
:        God gets         :  God wants giraffes         :
:     God help us all     :  God wants politics         :
: *thester@nyx.cs.du.edu* :  God wants a good laugh     :
From: beaver@rot.qc.ca (Andre Boivert)
Subject: Photoshop for Windows
Organization: Groupe de Recherche Operationnelle en Telecommunication (ROT) Inc.
X-Newsreader: TIN [version 1.1 PL9]
Lines: 13
I am looking for comments from people who have used/heard about PhotoShop
for Windows. Is it good? How does it compare to the Mac version? Is there
a lot of bugs (I heard the Windows version needs "fine-tuning)?
Any comments would be greatly appreciated..
Thank you.
Andre Boisvert
beaver@rot.qc.ca
From: ch41@prism.gatech.EDU (claye hart)
Subject: graphics libraries
Keywords: graphics, libraries
Organization: Georgia Institute of Technology
Lines: 16
I am interested in a 2d/3d graphics library which will allow our design
team to write graphics software for Unix workstations and be as portable as
possible.  Eventually this software will have to be moved to Microsoft
Windows.  It is my opinion that a good API with hooks to PEX underneath
would prove most portable.
Does anyone out there have any experience with Figaro+ form TGS or
HOOPS from Ithaca Software?  I would appreciate any comments.
- Claye Hart
--
Claye K. Hart 404-894-9729
Georgia Institute of Technology, Atlanta Georgia, 30332
uucp:	  ...!{decvax,hplabs,ncar,purdue,rutgers}!gatech!prism!ch41
Internet: claye.hart@gtri.gatech.edu
From: tlc@cx5.com
Subject: .SCF files, help needed
Reply-To: tlc@cx5.com
Organization: CX5 (San Francisco)
Lines: 24
I've got an old demo disk that I need to view. It was made using RIX Softworks.
The files on the two diskette set end with: .scf
The demo was VGA resolution (256 colors), but I don't know the spatial
resolution.
First problem: When I try to run the demo, the screen has two black bars that
cut across (horizontally) the screen, in the top third and bottom third of the
screen. The bars are about 1-inch wide. Other than this, the demo (the
animation part) seems to be running fine.
Second problem: I can't find any graphics program that will open and display
these files. I have a couple of image conversion programs, none mention .scf
files.
The system I am using: 486clone, Diamond Speedstar 24, Sony monitor.
Any suggestions?
Thank You,
T. Castro
tlc@cx5.com
From: u122743@twncu865.ncu.edu.tw
Subject: QUESTION: Video Projector
Organization: Computer Center, NCU, Taiwan, R.O.C.
Lines: 15
I am setting up a video-aid for a computer room for the teacher to share his
display with the class.
I have seen people using video projector, TV sets and large monitor to do
presentations before. I am told that there are three ways to connect video
projector: composite, Y/C & RGB.
Can anyone explain to me the difference and their likely costs?
Please reply to my INETNET E-mail account as well as posting in bulletin:
u129008@sparc20.nuc.edu.tw
I also like to know if there are TELNET or KERMIT for windows.
Tim Chen
From: Mark A. Cartwright <markc@emx.utexas.edu>
Subject: Re: TIFF: philosophical significance of 42 (SILLY)
Organization: University of Texas @ Austin, Comp. Center
Lines: 21
Distribution: world
NNTP-Posting-Host: aliester.cc.utexas.edu
X-UserAgent: Nuntius v1.1
Well,
42 is 101010 binary, and who would forget that its the
answer to the Question of "Life, the Universe, and Everything else."
That is to quote Douglas Adams in a round about way.
Of course the Question has not yet been discovered...
--
Mark A. Cartwright, N5SNP
University of Texas @ Austin
Computation Center, Graphics Facility
markc@emx.utexas.edu
markc@sirius.cc.utexas.edu
markc@hermes.chpc.utexas.edu
(512)-471-3241 x 362
PP-ASEL 9-92
a.) "Often in error, never in doubt."
b.) "This situation has no gravity, I would like a refund please."
From: buck@HQ.Ileaf.COM (David Buchholz x3252)
Subject: Looking for WMF Converter
Keywords: WMF, windowsmetafile
Nntp-Posting-Host: couloir
Reply-To: buck@HQ.Ileaf.COM (David Buchholz x3252)
Organization: Interleaf, Inc.
Lines: 13
I'm looking for any leads to the source of a good Windows
Meta File converter or interpreter. I need this for use
outside the Windows environment. PD sources preferred, but
not a requirement. Please reply to the address below.
David Buchholz               Internet: buck@ileaf.com
Product Manager                  uucp: uunet!leafusa!buck
Interleaf, Inc.                 voice: 617.290.4990 x-3252
From: kimd@rs6401.ecs.rpi.edu (Daniel Chungwan Kim)
Subject: WANTED: Super 8mm Projector with SOUNDS
Keywords: projector
Nntp-Posting-Host: rs6401.ecs.rpi.edu
Lines: 9
I am looking for Super 8mm Projector with SOUNDS.
If anybody out there has one for sale, send email with
the name of brand, condition of the projector, and price
for sale to kimd@rpi.edu
(IT MUST HAVE SOUND CAPABILITY)
Danny
kimd@rpi.edu
From: srlnjal@grace.cri.nz
Subject: CorelDraw BITMAP to SCODAL (2)
Organization: Industrial Research Ltd., New Zealand.
Lines: 22
NNTP-Posting-Host: grv.grace.cri.nz
Yes I am aware CorelDraw exports in SCODAL.
Version 2 did it quite well, apart from a
few hassles with radial fills. Version 3 RevB
is better but if you try to export in SCODAL
with a bitmap image included in the drawing
it will say something like "cannot export
SCODAL with bitmap"- at least it does on my
version.
If anyone out there knows a way around this
I am all ears.
Temporal images make a product called Filmpak
which converts Autocad plots to SCODAL, postscript
to SCODAL and now GIF to SCODAL but it costs $650
and I was just wondering if there was anything out
there that just did the bitmap to SCODAL part a tad
cheaper.
Jeff Lyall
Inst.Geo.&.Nuc.Sci.Ltd
Lower Hutt New Zealand
From: billj@b11.b11.ingr.com (Bill Jones)
Subject: Re: Need specs/info on Apple QuickTime
Keywords: quicktime
Organization: Intergraph Corp. Huntsville, AL
Lines: 16
add@sciences.sdsu.edu (James D. Murray) writes:
>I need to get the specs, or at least a very verbose interpretation of the
>specs, for QuickTime.  Technical articles from magazines and references to
>books would be nice too.
>I also need the specs in a format usable on a Unix or MS-DOS system.  I can't
>do much with the QuickTime stuff they have on ftp.apple.com in its present
>format.
Apple just released the Quicktime volume of the new Inside Macintosh series.
Any bookstore with reasonable technical stock should have it.
Bill Jones
billj@beowulf.b11.ingr.com
From: bio1@navi.up.ac.za (Fourie Joubert)
Subject: Image Analysis for PC
Organization: University of Pretoria
Lines: 18
NNTP-Posting-Host: zeno.up.ac.za
Hi
I am looking for Image Analysis software running in DOS or Windows. I'd like
to be able to analyze TIFF or similar files to generate histograms of
patterns, etc.
Any help would be appreciated!
__________________________________________________________________________
_/_/_/_/  _/_/_/_/_/ Fourie Joubert
_/            _/    Department of Biochemistry
_/            _/    University of Pretoria
_/_/_/_/      _/    bio1@navi.up.ac.za
_/            _/
_/      _/_/_/_/
__________________________________________________________________________
From: s127@ii.uib.no (Torgeir Veimo)
Subject: Re: sources for shading wanted
Organization: Institutt for Informatikk UIB Norway
Lines: 24
In article <1r3ih5INNldi@irau40.ira.uka.de>, S_BRAUN@IRAV19.ira.uka.de
(Thomas Braun) writes:
|> I'm looking for shading methods and algorithms.
|> Please let me know if you know where to get source codes for that.
'Illumination and Color in Computer Generated Imagery' by Roy Hall contains c
source for several famous illumination models, including Bouknight, Phong,
Blinn, Whitted, and Hall illumination models. If you want an introduction to
shading you might look through the book 'Writing a Raytracer' edited by
Glassner. Also, the book 'Procedural elements for Computer Graphics' by Rogers
is a good reference. Source for code in these book are available on the net i
believe, you might check out nic.funet.fi or some site closer to you carrying
graphics related stuff.
Hope this is what you were asking for.
--
Torgeir Veimo
Studying at the University of Bergen
"...I'm gona wave my freak flag high!" (Jimi Hendrix)
"...and it would be okay on any other day!" (The Police)
From: mz@moscom.com (Matthew Zenkar)
Subject: Re: CView answers
Organization: Moscom Corp., E. Rochester, NY
Lines: 18
X-Newsreader: TIN [version 1.1 PL9]
Cyberspace Buddha (cb@wixer.bga.com) wrote:
: renew@blade.stack.urc.tue.nl (Rene Walter) writes:
: >over where it places its temp files: it just places them in its
: >"current directory".
: I have to beg to differ on this point, as the batch file I use
: to launch cview cd's to the dir where cview resides and then
: invokes it.  every time I crash cview, the 0-byte temp file
: is found in the root dir of the drive cview is on.
This is what I posted that cview uses the root directory of the drive
cview is on.  However, since It has so much trouble reading large files
from floppy, I suspect that it uses the root directory of the drive the
image files are on.
Matthew Zenkar
mz@moscom.com
From: kardank@ERE.UMontreal.CA (Kardan Kaveh)
Subject: Re: Newsgroup Split
Organization: Universite de Montreal
Lines: 8
I haven't been following this thread, so appologies if this has already been
mentioned, but how about
comp.graphics.3d
--
Kaveh Kardan
kardank@ERE.UMontreal.CA
From: zyeh@caspian.usc.edu (zhenghao yeh)
Subject: Re: Fast wireframe graphics
Organization: University of Southern California, Los Angeles, CA
Lines: 14
Distribution: usa
NNTP-Posting-Host: caspian.usc.edu
In article <C5tK4u.C6t@cs.columbia.edu>, ykim@cs.columbia.edu (Yong Su Kim) writes:
|>
|> I am working on a program to display 3d wireframe models with the user
|> being able to arbitrarily change any of the viewing parameters.  Also,
|> the wireframe objects are also going to have dynamic attributes so
|> that they can move around while the user is "exploring" the wireframe
|> world.
Why don't you consider PHIGS in X or PEX lib?
Yeh
USC
From: renner@adobe.com (John Renner)
Subject: Re: detecting double points in bezier curves
Organization: Adobe Systems Incorporated, Mountain View
Lines: 27
In article <19930420.090030.915@almaden.ibm.com> capelli@vnet.IBM.COM (Ron Capelli) writes:
>In <ia522B1w165w@oeinck.waterland.wlink.nl> Ferdinand Oeinck writes:
>>I'm looking for any information on detecting and/or calculating a double
>>point and/or cusp in a bezier curve.
>
>See:
>   Maureen Stone and Tony DeRose,
>   "A Geometric Characterization of Parametric Cubic Curves",
>   ACM TOG, vol 8, no 3, July 1989, pp. 147-163.
I've used that reference, and found that I needed to go to their
original tech report:
Maureen Stone and Tony DeRose,
"Characterizing Cubic Bezier Curves"
Xerox  EDL-88-8, December 1988
This report can be obtained for free from:
Xerox Corporation
Palo Alto Research Center
3333 Coyote Hill Road
Palo Alto, California 94303
+1-415-494-4440
The TOG paper was good, but this tech report had more interesting details ;-)
-john
From: prestonm@cs.man.ac.uk (Martin Preston)
Subject: Re: TIFF: philosophical significance of 42
Lines: 18
In <C5sCGu.1LL@mentor.cc.purdue.edu> ab@nova.cc.purdue.edu (Allen B) writes:
>I've got the 6.0 spec (obviously since I quoted it in my last posting).
>My gripe about TIFF is that it's far too complicated and nearly
>infinitely easier to write than to read,...
Why not use the PD C library for reading/writing TIFF files? It took me a
good 20 minutes to start using them in your own app.
Martin
--
---------------------------------------------------------------------------
|Martin Preston,      (m.preston@manchester.ac.uk)    | Computer Graphics |
|Computer Graphics Unit, Manchester Computing Centre, |    is just        |
|University of Manchester,                            |  a load of balls. |
|Manchester, U.K., M13 9PL     Phone : 061 275 6095   |                   |
---------------------------------------------------------------------------
From: wbdst+@pitt.edu (William B Dwinnell)
Subject: Diamond Stelth 24- any good?
Organization: University of Pittsburgh
Lines: 4
I am in the market for a 24-bit graphics card for a PC (ISA bus), and
was wondering if anyone had any comments (good? bad? otherwise?) regarding
the Diamond Stealth 24?
Subject: Re: Trying to view POV files.....
From: dane@nermal.santarosa.edu (Dane Jasper)
Organization: Santa Rosa Junior College, Santa Rosa, CA
Nntp-Posting-Host: nermal.santarosa.edu
X-Newsreader: TIN [version 1.1 PL8]
Lines: 15
Edward d Nobles (ednobles@sacam.OREN.ORTN.EDU) wrote:
: I've been trying to view .tga files created in POVRAY.  I have the Diamond
: SpeedStar 24 Video board (not the _24X_).  So far I can convert them to
: jpeg using cjpeg and view them with CVIEW but that only displays 8 bit color.
..
: Just want to see the darn things in real color...
I have an ATI ultra pro card, and have found that the easiest way to view
true color images is using their windows drivers and something like winjpeg
or photofinish.
If anyone has a non-windows solution, I'd love to hear it!
Dane
From: jroberts@ux4.cso.uiuc.edu (Robertson)
Subject: ATI GUP and Graphics Wkshop/Win
Organization: University of Illinois at Urbana
Lines: 11
I have an ATI Graph. Ultra Pro VLB w/2 megs, and have a small question
about Graphics Workshop for Windows.  When I exit from it it says my
current driver can handle on 32768 colors when I am actually in
1024x768x65000 color mode.  Is this a driver problem, a GWS error, or
what?  I am using the 1.5(59) driver under Win 3.1.  It correctly
states that I can display 16M colors when I switch to 800x600x24bit,
though.
Another question- Anybody know of any Viewers that support this card
other than Windows viewers?
Any help would be appreciated.
From: dgf1@quads.uchicago.edu (David Farley)
Subject: Re: Photoshop for Windows
Reply-To: dgf1@midway.uchicago.edu
Organization: University of Chicago
Lines: 25
In article <C5uHIM.JFq@rot.qc.ca> beaver@rot.qc.ca (Andre Boivert) writes:
>
>
>I am looking for comments from people who have used/heard about PhotoShop
>for Windows. Is it good? How does it compare to the Mac version? Is there
>a lot of bugs (I heard the Windows version needs "fine-tuning)?
>
>Any comments would be greatly appreciated..
>
>Thank you.
>
>Andre Boisvert
>beaver@rot.qc.ca
>
An review of both the Mac and Windows versions in either PC Week or Info
World this week, said that the Windows version was considerably slower
than the Mac.  A more useful comparison would have been between PhotoStyler
and PhotoShop for Windows.  David
--
David Farley                           The University of Chicago Library
312 702-3426                              1100 East 57th Street, JRL-210
dgf1@midway.uchicago.edu                         Chicago, Illinois 60637
Organization: Penn State University
From: <JER114@psuvm.psu.edu>
Subject: Targa format-->text file
Lines: 7
Does anyone know how to convert a targa or similar 24 bit picture into a list
of R G B values and then convert back to targa after doing operations on the p
ixels R G B codes.
ex.  Targa ---->000100255pixel 1
001200201pixel 2etc....
If no one can help me with this could someone explain how the 24 bit data is st
ored in the targa file and also how its stored in the 8 bit targas.   Thanks
From: lipman@oasys.dt.navy.mil (Robert Lipman)
Subject: Call for presentations: Navy SciViz/VR seminar
Reply-To: lipman@oasys.dt.navy.mil (Robert Lipman)
Organization: Carderock Division, NSWC, Bethesda, MD
Lines: 74
**********************************************************************
2ND CALL FOR PRESENTATIONS
NAVY SCIENTIFIC VISUALIZATION AND VIRTUAL REALITY SEMINAR
Tuesday, June 22, 1993
Carderock Division, Naval Surface Warfare Center
(formerly the David Taylor Research Center)
Bethesda, Maryland
**********************************************************************
SPONSOR: NESS (Navy Engineering Software System) is sponsoring a
one-day Navy Scientific Visualization and Virtual Reality Seminar.
The purpose of the seminar is to present and exchange information for
Navy-related scientific visualization and virtual reality programs,
research, developments, and applications.
PRESENTATIONS: Presentations are solicited on all aspects of
Navy-related scientific visualization and virtual reality.  All
current work, works-in-progress, and proposed work by Navy
organizations will be considered.  Four types of presentations are
available.
1. Regular presentation: 20-30 minutes in length
2. Short presentation: 10 minutes in length
3. Video presentation: a stand-alone videotape (author need not
attend the seminar)
4. Scientific visualization or virtual reality demonstration (BYOH)
Accepted presentations will not be published in any proceedings,
however, viewgraphs and other materials will be reproduced for
seminar attendees.
ABSTRACTS: Authors should submit a one page abstract and/or videotape to:
Robert Lipman
Naval Surface Warfare Center, Carderock Division
Code 2042
Bethesda, Maryland  20084-5000
VOICE (301) 227-3618;  FAX (301) 227-5753
E-MAIL  lipman@oasys.dt.navy.mil
Authors should include the type of presentation, their affiliations,
addresses, telephone and FAX numbers, and addresses.  Multi-author
papers should designate one point of contact.
**********************************************************************
DEADLINES: The abstact submission deadline is April 30, 1993.
Notification of acceptance will be sent by May 14, 1993.
Materials for reproduction must be received by June 1, 1993.
**********************************************************************
For further information, contact Robert Lipman at the above address.
**********************************************************************
PLEASE DISTRIBUTE AS WIDELY AS POSSIBLE, THANKS.
**********************************************************************
Robert Lipman                     | Internet: lipman@oasys.dt.navy.mil
David Taylor Model Basin - CDNSWC |       or: lip@ocean.dt.navy.mil
Computational Signatures and      | Voicenet: (301) 227-3618
Structures Group, Code 2042    | Factsnet: (301) 227-5753
Bethesda, Maryland  20084-5000    | Phishnet: stockings@long.legs
The sixth sick shiek's sixth sheep's sick.
From: fox@graphics.cs.nyu.edu (David Fox)
Subject: Re: Newsgroup Split
In-Reply-To: tdawson@engin.umich.edu's message of 19 Apr 1993 19:43:52 GMT
Nntp-Posting-Host: graphics.cs.nyu.edu
Organization: Courant Institute of Mathematical Sciences
<1993Apr19.193758.12091@unocal.com>
<1quvdoINN3e7@srvr1.engin.umich.edu>
Lines: 16
Concerning the proposed newsgroup split, I personally am not in favor of
doing this.  I learn an awful lot about all aspects of graphics by reading
this group, from code to hardware to algorithms.  I just think making 5
different groups out of this is a wate, and will only result in a few posts
a week per group.  I kind of like the convenience of having one big forum
for discussing all aspects of graphics.  Anyone else feel this way?
Just curious.
I disagree.  You could learn the same amount by reading all the
split groups, and it would make things easier for those of us
who are less omnivorous.  There is no "waste" in creating news
groups -- its just a bit of shuffling about.  I have no problem
with only a few posts per week per group - I spend too much time
on this as it is.
-david
From: peterbak@microsoft.com (Peter Bako)
Subject: JPEG file format?
Organization: Microsoft Corp.
Lines: 11
Where could I find a description of the JPG file format?  Specifically
I need to know where in a JPG file I can find the height and width of
the image, and perhaps even the number of colors being used.
Any suggestions?
Peter
--
(*)-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-\/-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+(*)
(   UUCP:         peterbak@microsoft  ||   Is this all that I am?  Is there   )
(   CompuServe:   71170,1426          ||   nothing more?    - V'ger           )
(*)-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-/\-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+(*)
From: rgc3679@bcstec.ca.boeing.com (Robert G. Carpenter)
Subject: Re: Please Recommend 3D Graphics Library For Mac.
Organization: Boeing
Lines: 24
In article <John_Shepardson.esh-210493100336@moose.slac.stanford.edu> John_Shepardson.esh@qmail.slac.stanford.edu (John Shepardson) writes:
>> Can you please offer some recommendations? (3d graphics)
>
>
>There has been a fantastic 3d programmers package for some years that has
>been little advertised, and apparently nobody knows about, called 3d
>Graphic Tools written by Mark Owen of Micro System Options in Seattle WA.
>I reviewed it a year or so ago and was really awed by it's capabilities.
>It also includes tons of code for many aspects of Mac programming
>(including offscreen graphics).  It does Zbuffering, 24 bit graphics, has a
>database for representing graphical objects, and more.
>It is very well written (MPW C, Think C, and HyperCard) and the code is
>highly reusable.  Last time I checked the price was around $150 - WELL
>worth it.
>
>Their # is (206) 868-5418.
I've talked with Mark and he faxed some literature, though it wasn't very helpful-
just a list of routine names: _BSplineSurface, _DrawString3D... 241 names.
There was a Product Info sheet that explained some of the package capabilities.
I also found a review in April/May '92 MacTutor.
It does look like a good package. The current price is $295 US.
From: lusardi@cs.buffalo.edu (Christopher Lusardi)
Subject: Looking for Mr. radon
Organization: State University of New York at Buffalo/Comp Sci
Lines: 9
Nntp-Posting-Host: homam.cs.buffalo.edu
Does anyone have a radon transform in C that they could
send me?
Any help accepted,
--
|  .-,                ###|For a lot of .au music: ftp sounds.sdsu.edu
| /   /   __  ,  _    ###|then cat file.au > /dev/audio
| \_>/ >_/ (_/\_/<>_     |UB library catalog:telnet bison.acsu.buffalo.edu
|_                14261 _|(When in doubt ask: xarchie, xgopher, or xwais.)
From: markl@hunan.rastek.com (Mark Larsen)
Subject: Re: Ray tracer for ms-dos?
Organization: Rastek Corporation, Huntsville, AL
Lines: 32
In article <1r1cqiINNje8@srvr1.engin.umich.edu> tdawson@llullaillaco.engin.umich.edu (Chris Herringshaw) writes:
>
>Sorry for the repeat of this request, but does anyone know of a good
>free/shareware program with which I can create ray-traces and save
>them as bit-mapped files?  (Of course if there is such a thing =)
>
>Thanks in advance
>
>Daemon
There are 2 books published by M&T BOOKS that come with C source code on
floppies.  They are:
Programming In 3 Dimensions, 3-D Graphics, Ray Traycing, and Animation
by: Christopher D. Watkins and Larry Sharp.
Photorealism and Ray Tracing in C
by: Christopher D. Watkins, Stephen B. Coy, and Mark Finlay.
I have the first book and it is a great intro to 3-D, Ray Tracing and
Animation.  Most of the programs are on the disk compiled and ready to run.
I have only glanced at the second book but it also appears to be good.
Hope this helps!
Mark Larsen
---------------------------------------------------------------------------
markl@hunan.rastek.com
"This R2 unit has a bad motivator!"
- Luke, Star Wars
From: phew@gu.uwa.edu.au (Patrick Hew)
Subject: Re: Color pict of spinning Earth
Organization: The University of Western Australia
Lines: 22
NNTP-Posting-Host: mackerel.gu.uwa.edu.au
ESTOP07@CONRAD.APPSTATE.EDU (*ACS) writes:
>Sorry if this is the wrong place to post this
>	I was crusing the net earlier this year and came upon something called
>Color pict of spinning earth.  I am assuming it is a animation sequence of the
>earth's rotation (or revolution I always get those mixed up).  At the time I
>found it my sysem would not even support color graphics so I didn't bother to
>get the pict.  Now I have a fairly nice system and cant find the pict again!
>If anyone can help please post here or E-mail me
>Thanks in advance
>Eric (Estop07@conrad.appstate.edu)
Likewise for me please. First time I've hear of it, but I've beem looking
for something like this for the past few months.
Patrick Hew
2nd Year Science/ Engineering
University of Western Australia
phew@tartarus.uwa.edu.au
phew@mackerel.gu.uwa.edu.au
Subject: Cornerstone DualPage driver wanted
From: tkelder@ebc.ee (Tonis Kelder)
Nntp-Posting-Host: kask.ebc.ee
X-Newsreader: TIN [version 1.1 PL8]Lines: 12
Lines: 12
I am looking for a WINDOW 3.1 driver  for
Cornerstone  DualPage (Cornerstone Technology, Inc)
video card. Does  anybody know, that has these?  Is there one?
Thanks for any info,
To~nis
--
To~nis Kelder    Estonian Biocentre     (tkelder@kask.ebc.ee)
From: jmcocker@eos.ncsu.edu (Mitch)
Subject: Re: Newsgroup Split
Originator: jmcocker@c00053-100lez.eos.ncsu.edu
Reply-To: jmcocker@eos.ncsu.edu (Mitch)
Organization: North Carolina State University, Project Eos
Lines: 29
In article <FOX.93Apr22002043@graphics.nyu.edu>, fox@graphics.cs.nyu.edu (David Fox) writes:
|>
|>   Concerning the proposed newsgroup split, I personally am not in favor of
|>   doing this.  I learn an awful lot about all aspects of graphics by reading
|>   this group, from code to hardware to algorithms.  I just think making 5
|>   different groups out of this is a wate, and will only result in a few posts
|>   a week per group.  I kind of like the convenience of having one big forum
|>   for discussing all aspects of graphics.  Anyone else feel this way?
|>   Just curious.
|>
|>I disagree.  You could learn the same amount by reading all the
|>split groups, and it would make things easier for those of us
|>who are less omnivorous.  There is no "waste" in creating news
|>groups -- its just a bit of shuffling about.  I have no problem
|>with only a few posts per week per group - I spend too much time
|>on this as it is.
|>
Yes, but... shouldn't size of newsgroup be an issue?  Sorry if this
has been covered before, but comp.grahpics.animation get how much
traffic per day?  50 articles?  Maybe 70 on an extremely heavy day?
I've been following this group for about four months now, and I don't
recall ever seeing such a flood of posts that a split would be warranted.
Just my 2 cents,
Mitch------------------------------------>jmcocker@eos.ncsu.edu
"Who doth render with 386sx-20 knoweth frustration."
From: rued@daimi.aau.dk (Thomas Rued J|rgensen)
Subject: Re: .SCF files, help needed
Organization: DAIMI: Computer Science Department, Aarhus University, Denmark
Lines: 15
tlc@cx5.com writes:
>Second problem: I can't find any graphics program that will open and display
>these files. I have a couple of image conversion programs, none mention .scf
>files.
RIX's files with the extension  .sci and .scf are just a RAW file with
a 256 color palette.
The first 10 bytes is a kind of header, with the name RIX among 7bytes unknown stuff. The you have 768 bytes of palette info (3*256 for the colors RGB)
and then you have the picture in raw format.
If you dont know how to make a viewer of of this description you can get VPIC
it is able to read the files!
regards
Thomas
From: hans@cs.kuleuven.ac.be (Hans Baele)
Subject: conversion of pic format files to HPGL files
Nntp-Posting-Host: glasnost.cs.kuleuven.ac.be
Organization: Dept. Computerwetenschappen
Lines: 20
Hello,
Can anybody help me with the conversion of pic format files
to HPGL files. The question is as follows:
Is it possible to convert files that have been generated in the
pic preprocessor format into HPGL format, suitable for sending
to a plotter. The hardware involved is IBM RISC/6000 running AIX
3.2.3. How should this be done and what software is involved,
where is it available, what does it cost, what are the problems?
Regards,
Dani
--------------------------------
Cimad Consultants
Antwerp, Belgium
dani@cimad.be
--------------------------------
From: haston@utkvx.utk.edu (Haston, Donald Wayne)
Subject: Hijaak
News-Software: VAX/VMS VNEWS 1.41
Keywords: Hijaak
Organization: University of Tennessee Computing Center
Lines: 14
I have heard some impressive things about Hijakk (for Windows).
Currently, I use a shareware program called Graphics Workshop.
What kinds of things will Hijaak do that these shareware programs
will not do?
What has been your experience with Hijaak? Are there other programs
that are better? Please email me, if you can help:
Wayne Haston
HASTON@UTKVX.UTK.EDU
Thanks!
From: wlm@wisdom.attmail.com (Bill Myers)
Subject: Re: graphics libraries
In-Reply-To: ch41@prism.gatech.EDU's message of 21 Apr 93 12:56:08 GMT
Organization: /usr1/lib/news/organization
Lines: 28
> Does anyone out there have any experience with Figaro+ form TGS or
> HOOPS from Ithaca Software?  I would appreciate any comments.
Yes, I do.  A couple of years ago, I did a comparison of the two
products.  Some of this may have changed, but here goes.
As far as a PHIGS+ implementation, Figaro+ is fine.  But, its PHIGS!
Personally, I hate PHIGS because I find it is too low level.  I also
dislike structure editing, which I find impossible, but enough about
PHIGS.
I have found HOOPS to be a system that is full-featured and easy to
use.  They support all of their rendering methods in software when
there is no hardware support, their documentation is good, and they
are easily portable to other systems.
I would be happy to elaborate further if you have more specific
questions.
--
|------------------------------------------------------|
~~~       Here's lookin' at ya.
~~_ _~~
|`O-@'|     Bill  |  wlm@wisdom.attmail.com
@|  >  |@    Phone: (216) 831-2880 x2002
|\___/|
|_____|
|______________________________________________________|
From: scott@fcs280s.ncifcrf.gov (Michael Scott)
Subject: Canon copier-printer/postscript questions.
Nntp-Posting-Host: fcs280s.ncifcrf.gov
Organization: Frederick Cancer Research and Development Center
Lines: 53
Printer model and specification:
Canon CLC 500 (Color Laser Copier)
ps-ipu unit (postscript intelligent processing unit)
Hello,
We have recently purchased a very expensive and nice color copier/printer.
We want to be able to print to it from our SGI iris network.  The
copier/printer has both a parallel and SCSI interface.  I have configured the
printer with the "lp" system using the parallel interface and can print
postscript files to the printer.  I can also print rgb files, but these are in
turn converted to postscript by an internal filter.  The Canon CLC 500 is a
publication quality printer but the quality of our postscript printouts
are less than acceptable.  We create the postscript files with a variaty of
programs, such as showcase, xv, and tops.  When we convert to postscript
with tops and use the -l option to specify the halftone screen density of 98
rather than the default 40 the output is better, but still much less that
acceptable.  Note, that we are starting with a screen image in rgb image format
and translating the image into postscript.
We suspect that if we could use the SCSI interface we would get higher quality
pictures.  We have not purchased the software that drives the printer from the
SCSI port.  To my knowledge this software is $5000 and does not come with a
warranty.  The management here does not want to spend this much money without
some assurance that the product will work.
Here my questions:
If anybody on the net uses this printer are you using the SCSI or
parallel port?  What is the quality of the printouts?
Is there a way to create high quality postscript printouts?  What is the
limiting component, the postscript language or the postscript interpretor on
the printer?
The Big question:
Where can I get some software to drive the SCSI port for this printer?
Please email directly to me, I don't not read news on a regular basis.
I will post a summary.
Thanks in advance.
--
E-mail:		scott@ncifcrf.gov ,Phone #:	(301) 846-5798
Title:  	Sr. Systems Manager/Analyst
From: cgschot@cs.ruu.nl (Gerco Schot)
Subject: Ray Tracing Pictures
Organization: Utrecht University, Dept. of Computer Science
Lines: 23
For those who are interested in Ray Traced pictures, there is a nice example
on alt.binaries.pictures.misc. The file is called Poolball.gif. It shows a
pooltable with... YES! ... poolballs!
Resolution: 1024x768,  colours: 256 (only).
The TGA (24 bit) version is also available, but a bit big (2.4Mb) to post.
The picture is created with POV-ray.
Enjoy!
_Gerco_
__cgschot@cs.ruu.nl__
--
___________________________________
/                                   \
\___________________________________/
/_ Gerco Schot (cgschot@cs.ruu.nl) _\
From: td@alice.att.com (Tom Duff)
Subject: Re: TIFF: philosophical significance of 42
Article-I.D.: alice.25335
Organization: AT&T Bell Laboratories, Murray Hill NJ
Lines: 3
ulrich@galki.toppoint.de wrote:
> Does anyone have any  other suggestions where the 42 came from?
Forty-two is six times nine.
From: ds@aris.nswc.navy.mil (Demetrios Sapounas)
Subject: 3D display software
Organization: NSWC
Lines: 19
I have the need for displaying 2 1/2 D surfaces under X, using only
Xlib, Xt and Xm.  Does anyone know of a package, available on internet,
which will be able to do the work?
I am looking for a STAND-ALONE package providing similar functions
to "xprism3" available with Khoros, but without the numerous libraries
required for it.  I want to be able to recompile it and run it on
various platforms, from SGIs to i486s (UNIX).
Any help will be appreciated.
=======================================================================
Demetrios Sapounas                         Tel        +1 (703) 663.8332
L 115, NSWC                                Fax        +1 (703) 663.1939
Dahlgren, VA 22448-5000, USA               email  ds@aris.nswc.navy.mil
=======================================================================
From: e-sink@uiuc.edu (Eric W. Sink)
Subject: Re: Looking for WMF Converter
Keywords: WMF, windowsmetafile
Reply-To: e-sink@uiuc.edu
Originator: sink@ux2.cso.uiuc.edu
Organization: University of Illinois at Urbana
Lines: 19
buck@HQ.Ileaf.COM (David Buchholz x3252) writes:
>I'm looking for any leads to the source of a good Windows
>Meta File converter or interpreter. I need this for use
>outside the Windows environment. PD sources preferred, but
>not a requirement. Please reply to the address below.
On a related topic, I have been searching (with no success)
for a specification of the Enhanced Metafile format.  I have
the original WMF format (Graphics File Formats, Levine et al),
but no info on the 32 bit version.
Any pointers ?
--
Eric W. Sink, Spyglass        | "In all the earth, only humans have the ability
1800 Woodfield Drive          |    to be content in bad situations...
Savoy, IL  61826              |    and vice-versa."
---- e-sink@uiuc.edu ---------|---------- 217-355-6000 -----------------------
From: mark@ocsmd.ocs.com (Mark Wilson)
Subject: Re: TIFF: philosophical significance of 42 (SILLY)
Organization: Online Computer Systems, Inc.
X-Newsreader: Tin 1.1 PL5
Lines: 20
Mark A. Cartwright (markc@emx.utexas.edu) wrote:
: Well,
:
: 42 is 101010 binary, and who would forget that its the
: answer to the Question of "Life, the Universe, and Everything else."
: That is to quote Douglas Adams in a round about way.
:
: Of course the Question has not yet been discovered...
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
But it WAS discovered (sort of).  The question was "What is 7 times 8?"
When Arthur Dent objected that this was, unfortunately, factually
inaccurate, the effort to discover the question was begun all over.
This last effort was, I believe, likely to take far longer than
the lifespan of the universe, in fact several lifespans of same!
--
-------------------------------------------------------------------------------
Mark Wilson, Online Computer Systems.  1-800-922-9204 or 1-301-601-2215
(Try email address mark@ocsmd.ocs.com....)
This file .disclaims everything signed with my .signature, I .mean it!
-------------------------------------------------------------------------------
From: bockamp@Informatik.TU-Muenchen.DE (Florian Bockamp)
Subject: WANTED: Matrox PG-1281 CV driver
Originator: bockamp@hphalle2g.informatik.tu-muenchen.de
Organization: Technische Universitaet Muenchen, Germany
Lines: 24
Hi!
I need a Windows 3.1 driver for the Matrox PG-1281 CV
SVGA card.
At the moment Windows runs only in the 640x480 mode.
If you have a driver for this card, please send it
with the OEMSETUP.INF to
bockamp@Informatik.TU-Muenchen.DE
Thanks!
--
+-----------------------------------------------------------------+
| Florian Bockamp                                  '''            |
| bockamp@informatik.tu-muenchen.de               (o o)           |
+---------------------------------------------oOO--( )--OOo-------+
|                                                   -             |
|         "It's not a bug, it's an undocumented feature!"         |
+-----------------------------------------------------------------+
From: jack@robotics.jpl.nasa.gov (Jack Morrison)
Subject: Fixed-point math library
Organization: Jet Propulsion Laboratory
Lines: 11
Distribution: usa
Reply-To: jack@robotics.jpl.nasa.gov
NNTP-Posting-Host: medusa.jpl.nasa.gov
Has anyone written or seen a C library or C++ class for fixed-point math,
or good articles about same?
I pretty much know how to do this, but I have a few other wheels to invent
at the moment...
Thanks!
---
"How am I typing? Call 1-818-354-7782"               jack@robotics.jpl.nasa.gov
Jack Morrison/Jet Propulsion Lab/MS107-102 4800 Oak Grove Dr, Pasadena CA 91109
From: ch381@cleveland.Freenet.Edu (James K. Black)
Subject: NEEDED: algorithms for 2-d & 3-d object recognition
Organization: Case Western Reserve University, Cleveland, OH (USA)
Lines: 23
Reply-To: ch381@cleveland.Freenet.Edu (James K. Black)
NNTP-Posting-Host: hela.ins.cwru.edu
Hi,
I have a friend who is working on 2-d and 3-d object recognition. He is looking
for references describing algorithms on the following subject areas:
Thresholding
Edge Segmentation
Marr-Hildreth
Sobel Operator
Chain Codes
Thinning - Skeletonising
If anybody is willing to post an algorithm that they have implemented which demonstrates
any of the above topics, it would be much appreciated.
Please post all replies to my e-mail address. If requested I will post a summary to the
newsgroup in a couple of weeks.
Thanks in advance for all replies
James
eb192@city.ac.uk
From: tmc@spartan.ac.BrockU.CA (Tim Ciceran)
Subject: Re: Hijaak
Organization: Brock University, St. Catharines Ontario
X-Newsreader: TIN [version 1.1 PL9]
Lines: 15
Haston, Donald Wayne (haston@utkvx.utk.edu) wrote:
: Currently, I use a shareware program called Graphics Workshop.
: What kinds of things will Hijaak do that these shareware programs
: will not do?
I also use Graphic Workshop and the only differences that I know of are that
Hijaak has screen capture capabilities and acn convert to/from a couple of
more file formats (don't know specifically which one).  In the April 13
issue of PC Magazine they test the twelve best selling image capture/convert
utilities, including Hijaak.
TMC.
(tmc@spartan.ac.brocku.ca)
From: wdm@world.std.com (Wayne Michael)
Subject: Adobe Photo Shop type software for Unix/X/Motif platforms?
Summary: Searching for Adobe Photo Shop type software for Unix/X/Motif platforms
Keywords: Image Enhancement
Organization: n/a
Lines: 19
Hello,
I have been searching for a quality image enhancement and
manipulation package for Unix/X/Motif platforms that is comparable
to Adobe Photo Shop for the Mac.
I have not been able to find any, and would appreciate any
information about such products you could provide.
I would be particularly interested in software that runs on HP or
Sun workstations, and does not require special add-in hardware, but
would also be interested in other solutions.
Thank You.
Wayne
--
Wayne Michael
wdm@world.std.com
From: ab@nova.cc.purdue.edu (Allen B)
Subject: Re: TIFF: philosophical significance of 42
Organization: Purdue University
Lines: 39
In article <prestonm.735400848@cs.man.ac.uk> prestonm@cs.man.ac.uk (Martin
Preston) writes:
> Why not use the PD C library for reading/writing TIFF files? It took me a
> good 20 minutes to start using them in your own app.
I certainly do use it whenever I have to do TIFF, and it usually works
very well.  That's not my point.  I'm >philosophically< opposed to it
because of its complexity.
This complexity has led to some programs' poor TIFF writers making
some very bizarre files, other programs' inability to load TIFF
images (though they'll save them, of course), and a general
inability to interchange images between different environments
despite the fact they all think they understand TIFF.
As the saying goes, "It's not me I'm worried about- it's all the
>other<  assholes out there!"  I've had big trouble with misuse and
abuse of TIFF over the years, and I chalk it all up to the immense (and
unnecessary) complexity of the format.
In the words of the TIFF 5.0 spec, Appendix G, page G-1 (capitalized
emphasis mine):
"The only problem with this sort of success is that TIFF was designed
to be powerful and flexible, at the expense of simplicity.  It takes a
fair amount of effort to handle all the options currently defined in
this specification (PROBABLY NO APPLICATION DOES A COMPLETE JOB),
and that is currently the only way you can be >sure< that you will be
able to import any TIFF image, since there are so many
image-generating applications out there now."
If a program (or worse all applications) can't read >every< TIFF
image, that means there are some it won't- some that I might have to
deal with.  Why would I want my images to be trapped in that format?  I
don't and neither should anyone who agrees with my reasoning- not
that anyone does, of course! :-)
ab
Subject: Marching Cubs
From: abild@bert.cs.byu.edu
Distribution: world
Organization: BYU
Keywords: Cube,Program,C
Nntp-Posting-Host: bigler-quadra.byu.edu
Lines: 24
Hello,
Hello,
I was wondering if anyone knew of a PC or MAC
implementation of the marching cubes algorithm that will output
the individual faces.  If there is no such application, might there
be some C source code that I could modify to implement the
algorithm and get to the individual faces.
Thanks in advance
Sincerly
Tracy
+------------------------------------+-------------------------------+
| Tracy J. Abildskov                 | Phone:  (801) 378-3407        |
|                                    | FAX:    (801) 378-7862        |
| Address : Brigham Young University |                               |
|           Department of Psychology | E-mail: abild@bert.cs.byu.edu |
|           Provo, UT 84602          |                               |
|           USA                      |                               |
+------------------------------------+-------------------------------+
From: chert@dungeon.cirr.com (Chert Pellett)
Subject: Epson (HPGL) 4 pen plotter W/340 Pens $500 / B.O.
Summary: HP compataible
Keywords: Plotter HP Epson
Organization: Dis-
Distribution: usa
Lines: 30
Greetings,
I have an Epson HI-80 4 pen plotter forsale.  It emulates an HP 7570
or 7574 - I'm not sure which.  It has an option board on it that does
the emulation.  It has a serial interface with Hardware handshake. I
also have 340 Pens for it as follows:  10 packs of 4 Black Oil based, 16
packs of 4 Red,Green, Blue, and Black pens, 22 packs of 4 Aqueous Black,
7 packs of 4 Aqueous R,G,Blue,Black,  1 pack of 6 Aqueous Multi color
pens,  and 114 assorted non-packaged pens mostly colored.
The plotter is used.  I have tested it using the Windows drivers for
HP 7570 and HP 7574 and both worked fine.  It accepts either A or B
sized paper. (8.5 x 11 or 11x17).
I figure that the plotter is worth about $300 and the pens are worth at
least another $200 more..  One thing is certain, you won't need to
purchase any pens for quite a while...  All of the packaged pens were
sealed so they are all still fresh.  The rest were capped and seem to
function as well.
I'd be willing to sell the pens seperate if anyone is interested in
just them.
I'm selling it because I got a HP LaserJet and I don't need color.
I'd like $350 or best offer...
-Chert
--
Chert Pellett - chert@dungeon.cirr.com || chert@dungeon.lonestar.org
PANIC: The cat is nibbling on the power cord!
From: crussell@netcom.com (Chris Russell)
Subject: Re: TIFF: philosophical significance of 42 (SILLY)
Organization: Adaptive Solutions, Custom Software & Support  909/861-4048
X-Newsreader: TIN [version 1.1 PL8]
Lines: 40
Mark Wilson (mark@ocsmd.ocs.com) wrote:
: Mark A. Cartwright (markc@emx.utexas.edu) wrote:
: : 42 is 101010 binary, and who would forget that its the
: : answer to the Question of "Life, the Universe, and Everything else."
: : Of course the Question has not yet been discovered...
: ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
: But it WAS discovered (sort of).  The question was "What is 7 times 8?"
[ Read on and there's a special prize at the bottom.  Amaze your friends
and gain respect from your peers that you can carry on so long about the
number 42. ]
The original question was "What is the meaning of Life, the Universe, and
and Everything."  The answer generated by Deep Thought (the 2nd largest
computer ever created) was 42.  Deep Thought realized that to understand
the answer, one must really know what the question is.  Unfortunately, he
didn't.  But he was able to help build the largest computer (named Earth)
which could figure out the real question.  (I know this is background
knowledge for everyone here... just bear with me a sec... :)
When Arthur pulled the scrabble tiles out of the bag, he spelled out
"What is nine times six?" (or the like).  However, it is not clear that
the monkey-man had the right question in his brain, especially since it
was that lady in the diner (which was vaporized moments later) that came
up with the answer to how everyone could get along.  On the other hand,
Marvin said he saw the answer in Dent's brain, so lets presume it's
correct.
Well, NINE TIMES SIX ***IS*** FORTY-TWO!!!  ...in base 13.
Chew on that for awhile... :)
--
Chris Russell            Custom software, networks, CASE tools, and consulting
Adaptive Solutions       Sun SPARC, SGI IRIS, HP Apollo, Macintosh, & PC
Internet:  crussell@netcom.com
GTE:       909/861-4048
U.S. Mail: P.O. Box 5424
Diamond Bar, CA 91675-7424
From: rytg7@fel.tno.nl (Q. van Rijt)
Subject: Re: Sphere from 4 points?
Organization: TNO Physics and Electronics Laboratory
Lines: 26
There is another useful method based on Least Sqyares Estimation of the sphere equation parameters.
The points (x,y,z) on a spherical surface with radius R and center (a,b,c) can be written as
(x-a)^2 + (y-b)^2 + (z-c)^2 = R^2
This equation can be rewritten into the following form:
2ax + 2by + 2cz + R^2 - a^2 - b^2 -c^2 = x^2 + y^2 + z^2
Approximate the left hand part by   F(x,y,z) = p1.x + p2.x + p3.z + p4.1
For all datapoints, i.c. 4, determine the 4 parameters p1..p4 which minimise the average error |F(x,y,z) - x^2 - y^2 - z^2|^2.
In 'Numerical Recipes in C' can be found algorithms to solve these parameters.
The best fitting sphere will have
- center (a,b,c) = (p1/2, p2/2, p3/2)
- radius R = sqrt(p4 + a.a + b.b + c.c).
So, at last, will this solve you sphere estination problem, at least for the most situations I think ?.
Quick van Rijt, rytg7@fel.tno.nl
From: cs60805@basin04.cacs.usl.edu (Rao Koganti Srinivasa)
Subject: POLYGON FILL routine needed ....
Organization: The Center for Advanced Computer Studies
Lines: 18
Hi ,
I am looking for a polygon fill routine to fill
simple 4 sided polygons .
Can some one who has this routine in C help me in
saving my "REINVENTING" time.
Thanx in advance .....
Rao.
From: mikec@sail.LABS.TEK.COM (Micheal Cranford)
Subject: Disney Animation
Organization: Tektronix, Inc., Beaverton,  OR.
Lines: 5
------------------------------------
Can anyone tell me anything about the Disney Animation software package?
Note the followup line (this is not for me but for a colleague).
From: kmembry@viamar.UUCP (Kirk Membry)
Subject: Re: Rumours about 3DO ???
Reply-To: rutgers!viamar!kmembry
Organization: Private System
Lines: 11
Read Issue #2 of Wired Magazine.  It has a long article on the "hype" of
3DO.  I've noticed that every article talks with the designers and how
"great" it is, but never show any pictures of the output (or at least
pictures that one can understand)
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Kirk Membry                                    "Our Age is the Age of Industry"
rutgers!viamar!kmembry                         - Alexander Rodchenko
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
From: doug@hparc0.aus.hp.com (Doug Parsons)
Subject: Re: 3d-Studio V2.01 : Any differences with previous version
Organization: HP Australasian Response Centre (Melbourne)
X-Newsreader: TIN [version 1.1 PL8.5]
Lines: 10
FOMBARON marc (fombaron@ufrima.imag.fr) wrote:
: Are there significant differences between V2.01 and V2.00 ?
: Thank you for helping
No.  As I recall, the only differences are in the 3ds.set parameters - some
of the defaults have changed slightly.  I'll look when I get home and let
you know, but there isn't enough to actually warrant upgrading.
douginoz
From: mz@moscom.com (Matthew Zenkar)
Subject: Re: CView answers
Organization: Moscom Corp., E. Rochester, NY
Lines: 19
X-Newsreader: TIN [version 1.1 PL9]
Ray Knight (rknight@stiatl.salestech.com) wrote:
:uk02183@nx10.mik.uky.edu (bryan k williams) writes:
:>re: majority of users not readding from floppy.
:>Well, how about those of us who have 1400-picture CD-ROMS and would like to use
:>CVIEW because it is fast and it works well, but can't because the moron lacked
:>the foresight to create the temp file in the program's path, not the current
:>didrectory?
:  Actually the most flexible way to create temp files is to check for a TEMP or
: TMP environment variable and create the files on the drive and directory pointedto by the variable.  This is pretty much a standard for DOS, Windows and OS/2
: applications.
Unfortunately, cview does not pay attention to the temp environment variable.
Matthew Zenkar
mz@moscom.com
From: davidr@rincon.ema.rockwell.com (David J. Ray)
Subject: Re: TIFF: philosophical significance of 42
Organization: Rockwell International
X-Newsreader: Tin 1.1 PL5
Lines: 16
Martin Preston (prestonm@cs.man.ac.uk) wrote:
: In <C5sCGu.1LL@mentor.cc.purdue.edu> ab@nova.cc.purdue.edu (Allen B) writes:
:
: >I've got the 6.0 spec (obviously since I quoted it in my last posting).
: >My gripe about TIFF is that it's far too complicated and nearly
: >infinitely easier to write than to read,...
:
: Why not use the PD C library for reading/writing TIFF files? It took me a
: good 20 minutes to start using them in your own app.
:
: Martin
:
What is the name of this PD C library for TIFF.  I'd like to get a copy of it,
but I can't Archie for something I don't have the filename for.
Thanks.
From: tonyo@pendragon.CNA.TEK.COM (Tony Ozrelic)
Subject: Need info on cc:Mail file format
Organization: Tektronix, Inc., Redmond, Oregon
Lines: 13
I need the file format for cc:Mail file formats - it seems to be PCX-based,
but with a twist: only the first page of a multi-page fax will come out
readable. The other pages disappear. The format seems to be 'proprietary'.
Anybody got any clues? I have to give my email FAXes to my secretary in
order to get 'em unscrambled. I want a filter from cc:Mail to .p[nb]m.
Come to think of it, p[nb]m to cc:Mail would be nice too.
tonyo@master.CNA.TEK.COM
From: morley@suncad.camosun.bc.ca (Mark Morley)
Subject: Medical Images via Gopher?
Nntp-Posting-Host: suncad.camosun.bc.ca
Organization: Camosun College, Victoria B.C, Canada
X-Newsreader: Tin 1.1 PL4
Lines: 11
A few days back someone posted info on a gopher site where you could
search for medical graphics, etc.  Could someone please repost or mail me
a copy?  I'd greatly appreciate it.  Thanks!
Mark
===================================================================
Mark Morley, UNIX/SUN Manager           NET: morley@camosun.bc.ca
Camosun College - Interurban Campus     TEL: (604) 370-4601
4461 Interurban Road  Room 143-Tech     FAX: (604) 370-3660
Victoria, B.C.  Canada   V8X 3X1
From: seth@north6.acpub.duke.edu (Seth Wandersman)
Subject: morphing
Reply-To: seth@north6.acpub.duke.edu (Seth Wandersman)
Lines: 6
Nntp-Posting-Host: north6.acpub.duke.edu
Keywords:
I am looking for some morphing programs for DEC's or pc's. I looked for a program
called dmorph using archie but could not find it. I found a progrmam call
morpho but it only did grayscale images. Does anyone know where I should look?
From: raymaker@bcm.tmc.edu (Mark Raymaker)
Subject: graphics driver standards
Organization: Baylor College of Medicine, Houston, Tx
Lines: 21
NNTP-Posting-Host: bcm.tmc.edu
Keywords: graphics,standards
I have a researcher who collecting electical impulses from
the human heart through a complex Analog to Digital system
he has designed and inputting this information into his EISA
bus HP Vectra Computer running DOS and the Phar Lap DOS extender.
He want to purchase a very high-performance video card for
3-D modeling. He is aware of a company called Matrox but
he is concerned about getting married to a company and their
video routine library. He would hope some more flexibility:
to choose between several card manufacturers with a standard
video driver. He would like to write more generic code-
code that could be easily moved to other cards or computer operating
systems in the future. Is there any hope?
Any information would be greatly appreciated-
Please, if possible, respond directly to internet mail
to raymaker@bcm.tmc.edu
Thanks
From: xrcjd@mudpuppy.gsfc.nasa.gov (Charles J. Divine)
Subject: Re: TIFF: philosophical significance of 42 (SILLY)
Organization: NASA/GSFC Greenbelt Maryland
Lines: 15
In article <1r3lf9$fu0@geraldo.cc.utexas.edu> Mark A. Cartwright <markc@emx.utexas.edu> writes:
>Well,
>
>42 is 101010 binary, and who would forget that its the
>answer to the Question of "Life, the Universe, and Everything else."
>That is to quote Douglas Adams in a round about way.
>
>Of course the Question has not yet been discovered...
But the Question was later revealed to be:  What is 9 x 6?  (In the
base 13 system, of course.)
--
Chuck Divine
From: eylerken@stein.u.washington.edu (Ken Eyler)
Subject: 3D Animation Station
Article-I.D.: shelley.1r75bgINNob9
Distribution: world
Organization: University of Washington, Seattle
Lines: 18
NNTP-Posting-Host: stein.u.washington.edu
I am looking for some information about 3D animation stations that
are currently on the market.  The price of the station can be from 5K-20K,
but no more than $20,000.00.  Type of workstation doesnt matter (PC, MAC,
SGI etc..) .  If you use or have bought/looked at one or can suggest your
dream machine, then please mail me your configurations.  I need the following.
1. Type of station (PC, MAC etc.. )
2. Expandibilty of the machine.
3. Software that can run on it
4. VTR Controller and/or VTR deck model/name.
5. Vendors names and numbers.
Thanks in advance.
Ken Eyler
eylerken@u.washington.edu
The Evergreen State College
Subject: XLib and 24 Bit Displays [Info Needed]
From: sl0pr@riverdale.enet.dec.com (869883 Thakkar Rahul Chandrakant)
Reply-To: sl0pr@riverdale.enet.dec.com (869883 Thakkar Rahul Chandrakant)
Distribution: world
Organization: Digital Equipment Corporation
Keywords: Xlib
Nntp-Posting-Host: riverdale.declab.usu.edu
Lines: 23
Hi,
My name is rahul and I am doing MS at USU, Logan
My query is:
I have a HP workstation: HP Series 400 with X running on it.
I have a true color - 24bit color monitor connected to this machine.
Normally I have the capability to display 256 colors from a max of
16.7 million. Since the monitor is True Color I can see 16.7
million at a time.
Que: do we have a facility in X(c-function call) that will enable me
to specify any RGB combination and see it on screen? I am using
XStoreColor to set the pallette of a max of 256 colors.
Que: If not. Is there any way I can display a true color image
on a true color monitor using XLib function calls?
We are generating ray traced images and 256 colors are indeed a
painful limit. besides I need the facility to display the true color images
i will be generating on a true color system WITHOUT color
quantification.
Please, if anyone can help i'd be obliged
Rahul
sl0pr@cc.usu.edu
From: joshuaf@yang.earlham.edu
Subject: TIFF -> Anything?!
Organization: Earlham College, Richmond, Indiana
Lines: 10
Are there any TIFF to anything programs out there for the IBM?
Our scanner works into TIFF, and I can view it on CSHOW 8.1, but
all of my other programs read errors.  Are there any basic Tiff to
JPEG, GIF, PCX, BMP, etc...?
Thanks for the time...Email or post acceptable.
Joshuaf
"That Geiger scan looks like dookie!"
"I know it's a TIFF!!!!"
From: kruzifix@netcom.com (Living On The Edge......)
Subject: IMAGINE for PC??
Organization: Netcom - Online Communication Services (408 241-9760 guest)
Lines: 8
Is Impulse shipping IMAGINE for the PC386/486?  How close is it to the
Amiga's IMAGINE 2.0, in terms of features?
=============================================================================
Roland Chia                   |    >>> Air-Cooled >>>
EMAIL:kruzifix@netcom.com     |             >>> Free-Falling >>>
VOICE:(209)447-9403           |                      >>> Carbon Unit >>>
=============================================================================
From: shmuel@mapsut.einstein.com (Shmuel Einstein)
Subject: Screen capture -> CYMK converter
Nntp-Posting-Host: mapsut.einstein.com
Organization: Shmuel Einstein & Associates, Inc.
Lines: 20
I have a small program to extract a 640x480 image from a vga 16 color screen,
and store that image in a TIFF file.  I need to insert the image into a
sales brochure, which I then need printed in 4 color.  On a mac, I would
use Photoshop to separate the image into 5 EPS files, and then pull it into
quark express, then get it printed to film on a lintronix at a service bureau.
However, I don't have a mac, but I do have windows.  What would I need to
do this type of operation in the windows 3.1 environment?  Are there any
separation programs available on the net?  Is there a good page layout program
that I should look into?
Thanks in advance.
--
Shmuel Einstein, shmuel@einstein.com
Shmuel Einstein & Associates, Inc.
9100 Wilshire Blvd, Suite 235 E
Beverly Hills, CA  90212
310/273-8971 FAX 310/273-8872
From: hwstock@snll-arpagw.llnl.gov (stockman harlan w)
Subject: hp2xx for DOS
Organization: Sandia National Laboratories
Lines: 3
Is there a precompiled version of hp2xx for DOS out there - prefereably
for 386/486?
From: ridout@bink.plk.af.mil (Brian S.  Ridout)
Subject: Re: Virtual Reality for X on the CHEAP!
Organization: Air Force Phillips Lab.
Lines: 23
Distribution: world
NNTP-Posting-Host: bink.plk.af.mil
In article <1993Apr15.134802.21995@mfltd.co.uk>, sts@mfltd.co.uk (Steve Sherwood (x5543)) writes:
|> Has anyone got multiverse to work ?
|>
|> I have built it on 486 svr4, mips svr4s and Sun SparcStation.
|>
|> There seems to be many bugs in it.  The 'dogfight' and 'dactyl' simply do nothing
|> (After fixing a bug where a variable is defined twice in two different modules - One needed
|> setting to static - else the client core-dumped)
|>
|> Steve
|> --
|>
|>          Extn 5543, sts@mfltd.co.uk, !uunet!mfocus!sts
|> +-----------------------------------+------------------------+ Micro Focus
|> | Just like Pariah, I have no name, |    rm -rf *            | 26 West Street
|> | Living in a blaze of obscurity,   |      "rum ruff splat"  | Newbury
|> | Need courage to survive the day.  |                        | Berkshire
|> +-----------------------------------+------------------------+ England
|>          (A)bort (R)etry (I)nfluence with large hammer
I built it on a rs6000 (my only Motif machine) works fine.  I added some objects
into dogfight so I could get used to flying.  This was very easy.
All in all Cool!.
Brian
From: gmt@beach.cis.ufl.edu (Gary McTaggart)
Subject: 3d Animation Studio file format??
Organization: Univ. of Florida CIS Dept.
Lines: 7
Distribution: world
NNTP-Posting-Host: beach.cis.ufl.edu
Is the ".3ds" file format for Autodesk's 3D Animation Studio available?
Thanks,
Gary
(Please respond by email.  I have a hell of a time keeping up with news!!
:-) )
From: kai_h@postoffice.utas.edu.au (Kai Howells)
Subject: Re: Ray tracer for ms-dos?
Organization: University of Tasmania
Lines: 33
In article <1r1cqiINNje8@srvr1.engin.umich.edu>,
tdawson@llullaillaco.engin.umich.edu (Chris Herringshaw) wrote:
>
>
> Sorry for the repeat of this request, but does anyone know of a good
> free/shareware program with which I can create ray-traces and save
> them as bit-mapped files?  (Of course if there is such a thing =)
>
> Thanks in advance
>
> Daemon
PPPPP    OOOOO  V     V  Persistance Of Vision Raytracer.
P    P  O     O V     V
P    P  O     O V     V
PPPPP   O     O V     V
P       O     O  V   V
P       O     O   V V
P        OOOOO     V
Available on archie and wuarchive in graphics type directories.
PS It's freeware.
--
_/_/_/
_/                                        Kai Howells.
_/         _/_/_/   _/ _/_/   _/  _/_/_/  kai_h@postoffice.utas.edu.au
_/_/    _/     _/ _/_/   _/ _/ _/       35 Mortimer Ave
_/  _/     _/ _/     _/ _/ _/       New Town TAS 7008
_/  _/     _/ _/     _/ _/ _/       Ph. Within Australia 002 286 110
_/_/_/     _/_/_/  _/     _/ _/   _/_/_/  Elsewhere:        +61 02 286 110
From: schwartz@ils.nwu.edu (diane schwartz)
Subject: SIGKids Research Showcase Call
Organization: institute for the learning sciences
Lines: 250
Distribution: world
NNTP-Posting-Host: schwartz.ils.nwu.edu
SIGKIDS CALL FOR PARTICIPATION
SIGKids Research Showcase is where learning is hip.  Pushing the edge in
education, computer graphics, and new technologies, the SIGKids Research
Showcase will provide SIGGRAPH's attendees with the latest in applying
computer technology to form state of the art educational experiences.  So
hop to it!  Submit any works which converge the disciplines of education
and computer technology.
Possible categories and domains include but are NOT LIMITED to:
-Interactive/stand-alone applications
-Self-Run demonstrations and tutorials
-Museum Installations
-Groupware/Collaborative systems
-Hypermedia
-Virtual Reality
-Scientific Visualization
-Interactive Art
-Microworlds
Deadlines:
May 21, 1993 submissions due
Submit to:
Diane Schwartz
SIGGRAPH '93 SIGKids Committee
c/o The Institute for the Learning Sciences
1890 Maple Avenue, Suite 150
Evanston, Illinois 60201
Fax:	708.491.5258
schwartz@ils.nwu.edu
Electronic Submission Form:
schwartz@ils.nwu.edu
How to Submit:
1. Fill out the 'Permission to Use' form (see page 19 of the SIGGRAPH '93
Call for Participation or send email to schwartz@ils.nwu.edu to have one
faxed to you.)
2. Fill out the SIGKids '93 Research Showcase Submission Form (below).
3. Send an abstract/description of the submission (approximately 100 words)
in one of the following ways:
A. Send 3 hard copies to Diane Schwartz (via surface mail) at the above
address
OR
B. Fax 1 copy to Diane Schwartz at (708)491-5258
OR
C. Email 1 copy to Diane Schwartz at schwartz@ils.nwu.edu
4. If it is necessary to explain the project, additional support material
such as videotapes and slides that will assist the selection committee in
reaching a decision are highly reccommended.
Fax and email submissions are acceptable.
PLEASE SEND ALL OF YOUR SUBMISSION MATERIAL IN THE SAME FORM (either
surface mail, email, or fax. The only exception to this should be the
additional support material which should only be sent via surface mail).
NOTE: Due to our very limited budget, if the submitter chooses to have a
dedicated machine for their work, they will have to pay rental fees
for the hardware personally.
NOTE: Contributors outside for the United States should be aware of customs
and carrier delays and send submissions early.
______________________________________cut
here__________________________________
ACM SIGGRAPH '93 SIGKIDS RESEARCH SHOWCASE ENTRY FORM
A copy of this form must accompany each proposal you submit.  Send SIGKids
Research Showcase Entries to:
Diane Schwartz
SIGGRAPH '93 SIGKids Committee
c/o The Institute for the Learning Sciences
1890 Maple Avenue, Suite 150
Evanston, Illinois 60201
Fax:	708.491.5258
schwartz@ils.nwu.edu
Please print legibly.
Contact Information:
Name________________________________________________
Company______________________________________________
Address______________________________________________
City_________________________________________________
State_____________Postal code______________Country_________________
Daytime phone_____________________Evening phone____________________
Fax_____________________________Email______________________________
Additional Information:
Title or Theme of Piece__________________________________
Participant(s') name(s)___________________________________
Collaborator(s') name(s)__________________________________
Hardware (platform and periferals):
1. What is
needed:_____________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
2. Supplied by Participant:
___ Yes  ___ No
3. Dedicated machine?
___ Yes  ___ No
NOTE:  Due to our very limited budget the participant must pay the rental
fees for any dedicated hardware.
___Need assistance
(specify)____________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Software________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Statement - Please tell us the significance of the work.
(less than 50 words)
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Medium:
___Other (describe - i.e. virtual reality, virtual sculpture, interactive
multimedia installation,
etc.)__________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Special Requirements:
Physical
description____________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Power___________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Dimensions______________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Other__________________________________________________________________________
________________________________________________________________________________
________________________________________________________________________________
Authorization
Permission to use visual and audio:  In the event that materials used in my
ACM SIGGRAPH'93 SIGKids Research Showcase Entry contain the work of other
individuals or organizations (including any copyrighted musical
compositions or excerpts thereof), I understand that it is my
responsibility to secure any necessary permissions and/or liscenses.
___Yes ___No  My piece contains images, audio, or video components.
If yes:
___Yes ___No  I have the necessary rights and/or permissions
to
use the images, audio, or video components in
my
piece.
Conference presentation release:  By signing this form, I grant SIGGRAPH'93
permission to consider my piece for the SIGKids Research Showcase.  I
maintain the copyright to my work and will receive full credit wherever
this work is used.
Conference promotional material:  I grant ACM SIGGRAPH the right to use my
slides for conference and organization publicity, both now and in the
future.  This includes usage on posters, brochures, catalogs, promotional
items, or media broadcast. In exchange, SIGGRAPH provides full
author/artist credit information on all promotional material.
___Yes ___No  I grant ACM SIGGRAPH permission to use slides of my work
for conference and organization publicity.
Signature______________________________________Date_________
ACM SIGGRAPH makes every attempt to respect and protect intellectual
property rights of people and organizations preparing material for
SIGGRAPH conferences. This entry form explains the uses SIGGRAPH will
make of the material and requires you to acknowledge that you have
permission to use this material.  This may involve seeking clearance from
your employer or from others who have loaned you material, such as
videotapes and slides.  This form helps prevent situations whereby
SIGGRAPH'93 presentations include material without permission that
might lead to complaints or even legal action.
This form also asks you to grant SIGGRAPH the right to distribute your
work, while you maintain the copyright.  Slide sets and catalogs are
publications for which you grant SIGGRAPH nonexclusive worldwide
distribution rights.  SIGGRAPH marks each item in these publications with a
proper copyright notice, which informs viewers that these items may not be
copied, reproduced, broadcast, or used for commercial purposes without the
explicit permission of the indivicual copyright owners.  In addition, this
form asks if  ACM SIGGRAPH may  use the your materials for conference and
organizational promotional material in exchange for full author/artist
credit information.
From: omar@godzilla.osf.org (Mark Marino)
Subject: WANTED: Playmation Info
Organization: Open Software Foundation
Lines: 21
Hi Folks,
Does anyone have a copy of Playmation they'd be willing to sell me.  I'd
love to try it out, but not for the retail $$$.  If you have moved onto
something bigger (3DS) or better (Imagine), I'd love to buy your table scraps.
If noone is selling, can anyone recommend a place to buy Playmation
mail-order for cheap?
Thanks in advance,
Mark
--
-----------------------------------------------------------------------------
|                                                                             |
| Mark Marino              | omar@osf.org           |  uunet!osf!omar         |
| Open Software Foundation | 11 Cambridge Center    |  Cambridge, MA 02142    |
|_____________________________________________________________________________|
From: fsmarc@tristero.lerc.nasa.gov (Marc Cooper)
Subject: Re: Marching Cubs
Organization: NASA Lewis Research Center [Cleveland, Ohio]
Lines: 17
Distribution: world
NNTP-Posting-Host: tristero.lerc.nasa.gov
Keywords: Cube,Program,C
I saw this subject and all I could think of was a parade at Wrigley Field
in Chicago.
Or maybe it's just me.
:)
--
Marc Cooper - Graphics Programmer - Sverdrup Tech.| "As a child, I WAS an
fsmarc@lerc.nasa.gov                              |       imaginary playmate."
NASA Lewis Research Center  MS 5-11               |
21000 Brookpark Dr.                               | Tom Robbins
Cleveland, OH  44135               (216) 433-8898 | Even Cowgirls Get the Blues
-------------------------------------------------------------------------------
Disclaimer:  "It's mine! All mine!"  -D. Duck
Subject: POV file constructor for Unix/X11
From: Craig.Humphrey@comp.vuw.ac.nz (chumphre)
Reply-To: chumphre@comp.vuw.ac.nz
Distribution: world
Organization: Victoria University of Wellington. New Zealand
NNTP-Posting-Host: regent.comp.vuw.ac.nz
Lines: 13
Hi, I'm just getting into PoVRay and I was wondering if there is a graphic
package that outputs .POV files.  Any help would be appreciated.
Thanks.
Later'ish
Craig
--
|\/\/\/\/\/|
| ___  ___ |         "I didn't do it, nobody saw me do it,
|/   \/   \|             you can't prove anything."
_ccc_c_#_|__#_ccc_c_____chumphre@comp.vuw.ac.nz_______________________________
From: nfotis@ntua.gr (Nick C. Fotis)
Subject: Re: more on radiosity
Organization: National Technical University of Athens
Lines: 34
amann@iam.unibe.ch (Stephan Amann) writes:
>In article 66319@yuma.ACNS.ColoState.EDU, xz775327@longs.LANCE.ColoState.Edu (Xia Zhao) writes:
>>
>>
>>In article <1993Apr19.131239.11670@aragorn.unibe.ch>, you write:
>>|>
>>|>
>>|> Let's be serious... I'm working on a radiosity package, written in C++.
>>|> I would like to make it public domain.  I'll announce it in c.g. the minute
>>|> I finished it.
>>|>
>>|> That were the good news. The bad news: It'll take another 2 months (at least)
>>|> to finish it.
Please note that there are some radiosity packages in my Resource Listing
(under the Subject 3: FTP list)
Greetings,
Nick.
--
Nick (Nikolaos) Fotis         National Technical Univ. of Athens, Greece
HOME: 16 Esperidon St.,       InterNet : nfotis@theseas.ntua.gr
Halandri, GR - 152 32   UUCP:    mcsun!ariadne!theseas!nfotis
Athens, GREECE          FAX: (+30 1) 77 84 578
USENET Editor of comp.graphics Resource Listing and soc.culture.greece FAQ
NTUA/UA ACM Student Chapter Chair - we're organizing a small conference
in Comp. Graphics, call if you're interested to participate.
--
Nick (Nikolaos) Fotis         National Technical Univ. of Athens, Greece
HOME: 16 Esperidon St.,       InterNet : nfotis@theseas.ntua.gr
Halandri, GR - 152 32   UUCP:    mcsun!ariadne!theseas!nfotis
Athens, GREECE          FAX: (+30 1) 77 84 578
From: deweeset@ptolemy2.rdrc.rpi.edu (Thomas E. DeWeese)
Subject: Finding equally spaced points on a sphere.
Article-I.D.: rpi.4615trd
Organization: Rensselaer Polytechnic Institute, Troy, NY
Lines: 8
Nntp-Posting-Host: ptolemy2.rdrc.rpi.edu
Hello, I know that this has been discussed before.  But at the time
I didn't need to teselate a sphere.  So if any kind soul has the code
or the alg, that was finally decided upon as the best (as I recall it
was a nice, iterative subdivision meathod), I would be very
appreciative.
Thomas DeWeese
deweeset@rdrc.rpi.edu
From: Gordon_Sumerling@itd.dsto.gov.au (Gordon Sumerling)
Subject: Re: Grayscale Printer
Organization: ITD/DSTO
Lines: 2
Distribution: na
NNTP-Posting-Host: iapmac2.dsto.gov.au
Have you considered the Apple Laserwriter IIg. We use it for all our B&W
image printing.
From: newmme@helios.tn.cornell.edu (Mark E. J. Newman)
Subject: HELP: advice on what video system to buy
Keywords: video, RS6000
Organization: Cornell University
Lines: 22
If this question is covered elsewhere, I apologize, but I need information
fast.
My department has been given a large sum of money to install a video system
on our network of IBM RS6000 workstations.  This is not an area in which I
have any expertise, so I wonder if anyone out there can offer advice.  We
would like a system, based either on VHS or 8mm video which will allow one
write video, frame by frame on tape for play-back in real time.  It's for
visualization of physics problems.  Can anyone tell me what hardware is
available which would work for our system?  Some support software is
obviously needed too, but nothing particularly sophisticated, since the
software we actually use for the visualization is all already written.
Please email with replies, as I don't read this group.  Many thanks for your
help.
Dr. M. E. J. Newman.
Department of Physics,
Cornell University.
newmme@helios.tn.cornell.edu
From: tmc@spartan.ac.BrockU.CA (Tim Ciceran)
Subject: Re: TIFF -> Anything?!
Organization: Brock University, St. Catharines Ontario
X-Newsreader: TIN [version 1.1 PL9]
Lines: 10
There is a program called Graphic Workshop you can FTP from
wuarchive.  The file is in the msdos/graphics directory and
is called "grfwk61t.zip."  This program should od everthing
you need.
--
TMC
(tmc@spartan.ac.BrockU.ca)
From: weilej@cary115.its.rpi.edu (Jason Lee Weiler)
Subject: Re: Sun IPX root window display - background picture
Keywords: sun ipx background picture
Article-I.D.: rpi.gc15hqk
Reply-To: weilej@rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy, NY.
Lines: 31
Nntp-Posting-Host: cary115.its.rpi.edu
In article <1993Apr19.220817.22480@osi.com>, scott@osi.com (Scott Fleming) writes:
|>
|> Hello netters!
|>
|> I have a fairly weak question to ask everybody in netland.  I've looked though
|> the last FAQ for comp.graphics but I didn't find my answer.  Thus the post.
|>
|> I'll keep it short.
|>
|> QUESTION:  How do I display any raster files, gif files, iff or tiff images
|> that I have on my "root window" or background?  I have a sun ipc, openwindows
|> 3.0, Sun OS 4.1.3 if that helps any.
|>
|> I've compiled POV for the sun and would like to display some of the work I have
|> done as a background/tile.  Thanks for any help or information that you
|> provide.  Have a good day.
|>
|> Scott Fleming
|> OSI
|>
|> P.S.
|> Kudo's to the people who provided POV, its great!
|>
Scott,
I'm not so sure if this is helpful, but I usually use XV v2.21.  I use Sun IPCs and IPXs, and it works fine.  It can display in a good number of ways.(root being one of them)  It's also possible to have XV put up a background automatically at login.  Hope this helps.
Jason Weiler
<weilej@rpi.edu>
BTW  XV v2.21 is on anonymous FTP somewhere. (archie fer it!)
From: ferdinan@oeinck.waterland.wlink.nl (Ferdinand Oeinck)
Subject: Re: detecting double points in bezier curves
Organization: My own node in Groningen, NL.
Lines: 34
renner@adobe.com (John Renner) writes:
> In article <19930420.090030.915@almaden.ibm.com> capelli@vnet.IBM.COM (Ron Ca
> >In <ia522B1w165w@oeinck.waterland.wlink.nl> Ferdinand Oeinck writes:
> >>I'm looking for any information on detecting and/or calculating a double
> >>point and/or cusp in a bezier curve.
> >
> >See:
> >   Maureen Stone and Tony DeRose,
> >   "A Geometric Characterization of Parametric Cubic Curves",
> >   ACM TOG, vol 8, no 3, July 1989, pp. 147-163.
>
> I've used that reference, and found that I needed to go to their
> original tech report:
>
> 	Maureen Stone and Tony DeRose,
> 	"Characterizing Cubic Bezier Curves"
> 	Xerox  EDL-88-8, December 1988
>
First, thanks to all who replied to my original question.
I've implemented the ideas from the article above and I'm very satisfied
with the results. I needed it for my bezier curve approximation routine.
In some cases (generating offset curves) loops can occur. I now have a
fast method of detecting the generation of a curve with a loop. Although
I did not follow the article above strictly. The check if the fourth control
point lies in the the loop area, which is bounded by two parabolas and
one ellips is too complicated. Instead I enlarged the loop-area and
surrounded it by for straight lines. The check is now simple and fast and
my approximation routine never ever outputs self-intersecting bezier curves
again!
Ferdinand.
From: ryanph@mrl.dsto.gov.au
Subject: DREGISTERe: XV for MS-DOS
Organization: Defence Science and Technology Organisation
Lines: 43
NNTP-Posting-Host: mrl.dsto.gov.au
Pascal Perret, in article <1993Apr21.125750.263@eicn.etna.ch>, wrote
>
> 	Site	: omnigate.clarkson.edu
> 	Aliases	: grape.ecs.clarkson.edu
> 	Number	: 128.153.4.2
>
> 	/pub/msdos/djgpp/pub
>
> 	it's xv221.zip (?) I think...
> Certainly you read the other answer from Kevin Martin... He write about DV/X
> (?).
>
>     What is it ?????? Could Someone answer ????
Funny thing, the InterNet: I have no idea what xv221 might be - except that it
might be something to do with X-windows on PCs (? If you know, and have used
it, and think that it is good, email me. [ryanph@mrl.dsto.gov.au]).
DV/X is a common abbreviation for QuarterDeck corporation's Desqview/X
software.
I have not used DV/X yet, but reading the blurbs that Quarterdeck sent me, it
sounds pretty great:
* allows multiple DOS machines - the way that OS/2 does, but without
requiring 10 MB of RAM to get OS/2 going
* pre-emptive multi-tasking
* network computing - a proper X-windows client/server application -
this means that DOS program can be used on other X-windows computers on your
network, and that X-windows programs can be used on your DV/X computer
* although it is NOT a version of Unix, it effectively has many of
Unix's features, and mostly you will be able to compile unix-type programs
using the djgpp or gnu c compilers
They advertise regularly in all of the major computing and programming
magazines. They also have InterNet support online (support@qdeck.com).
> *  Pascal PERRET     		|	perret@eicn.etna.ch         *
Hope that this helps anyone wanting to know.
Phil Ryan
Melbourne, australia
Subject: Re: Looking for Tseng VESA drivers
From: t890449@patan.fi.upm.es ()
Organization: /usr/local/lib/organization
Nntp-Posting-Host: patan.fi.upm.es
Lines: 10
Hi, this is my first msg to the Net (actually the 3rd copy of it, dam*ed VI!!).
Look for the new VPIC6.0, it comes with updated VESA 1.2 drivers for almost every known card. The VESA level is 1.2, and my Tseng4000 24-bit has a nice affair with the driver.
Hope it is useful!!
Bye
From: eapu207@orion.oac.uci.edu (John Peter Kondis)
Subject: I need to make my VGA do shades.
Nntp-Posting-Host: orion.oac.uci.edu
Lines: 12
I have a routine that changes the color (RGB) attributes on my
VGA adapter, but it doesn't work in the mode that I need.
Specifically 68 hex.  An obscure mode, of course, but I need to
change the zillions of colors to 64 shade greyscale, but I do
not have the correct memory address for the pointer I need.
PLEASE, someone, I need the starting address, or maybe somewhere
I can find it.  Thank you.
John Kondis
eapu207@orion.oac.uci.edu
From: aron@tikal.ced.berkeley.edu (Aron Bonar)
Subject: Re: Photoshop for Windows
Organization: University of California, Berkeley
Lines: 26
Distribution: world
NNTP-Posting-Host: tikal.ced.berkeley.edu
In article <1993Apr22.011720.28958@midway.uchicago.edu>, dgf1@quads.uchicago.edu (David Farley) writes:
|> In article <C5uHIM.JFq@rot.qc.ca> beaver@rot.qc.ca (Andre Boivert) writes:
|> >
|> >
|> >I am looking for comments from people who have used/heard about PhotoShop
|> >for Windows. Is it good? How does it compare to the Mac version? Is there
|> >a lot of bugs (I heard the Windows version needs "fine-tuning)?
|> >
|> >Any comments would be greatly appreciated..
|> >
|> >Thank you.
|> >
|> >Andre Boisvert
|> >beaver@rot.qc.ca
|> >
|> An review of both the Mac and Windows versions in either PC Week or Info
|> World this week, said that the Windows version was considerably slower
|> than the Mac.  A more useful comparison would have been between PhotoStyler
|> and PhotoShop for Windows.  David
|>
I don't know about that...I've used Photoshop 2.5 on both a 486dx-50 and a Quadra
950...I'd say they are roughly equal.  If anything the 486 was faster.
Both systems were running in 24 bit color and had the same amount of RAM (16 megs)
I also believe the quadra had one of those photoshop accelerators.
From: aron@tikal.ced.berkeley.edu (Aron Bonar)
Subject: Re: 3d-Studio V2.01 : Any differences with previous version
Organization: University of California, Berkeley
Lines: 18
Distribution: world
NNTP-Posting-Host: tikal.ced.berkeley.edu
In article <1993Apr22.021708.13381@hparc0.aus.hp.com>, doug@hparc0.aus.hp.com (Doug Parsons) writes:
|> FOMBARON marc (fombaron@ufrima.imag.fr) wrote:
|> : Are there significant differences between V2.01 and V2.00 ?
|> : Thank you for helping
|>
|>
|> No.  As I recall, the only differences are in the 3ds.set parameters - some
|> of the defaults have changed slightly.  I'll look when I get home and let
|> you know, but there isn't enough to actually warrant upgrading.
|>
|> douginoz
Wrong...the major improvements for 2.01 and 2.01a are in the use of IPAS routines
for 3d studio.  They have increased in speed anywhere from 30-200% depending
on which ones you use.
All the Yost group IPAS routines that you can buy separate from the 3d studio
package require the use of 2.01 or 2.01a.  They are too slow with 2.00.
From: richter@fossi.hab-weimar.de (Axel Richter)
Subject: True Color Display in POV
Keywords: POV, Raytracing
Nntp-Posting-Host: fossi.hab-weimar.de
Organization: Hochschule fuer Architektur und Bauwesen Weimar, Germany
Lines: 6
Hallo POV-Renderers !
I've got a BocaX3 Card. Now I try to get POV displaying True Colors
while rendering. I've tried most of the options and UNIVESA-Driver
but what happens isn't correct.
Can anybody help me ?
From: inu530n@lindblat.cc.monash.edu.au (I Rachmat)
Subject: Fractal compression
Summary: looking for good reference
Keywords: fractal
Organization: Monash University, Melb., Australia.
Lines: 6
Hi... can anybody give me book or reference title to give me a start at
fractal image compression technique. Helps will be appreciated... thanx
inu530n@lindblat.cc.monash.edu.au
inu530n@aurora.cc.monash.edu.au
From: h8902939@hkuxa.hku.hk (Abel)
Subject: Developable Surface
Nntp-Posting-Host: hkuxa.hku.hk
Organization: The University of Hong Kong
X-Newsreader: TIN [version 1.1 PL6]
Lines: 9
Hi netters,
I am currently doing some investigations on "Developable Surface".
Can anyone familiar with this topic give me some information or sources
which can allow me to find some infomation of developable surface?
Thanks for your help!
Abel
h8902939@hkuxa.hku.hk
From: sts@mfltd.co.uk (Steve Sherwood (x5543))
Subject: Re: Virtual Reality for X on the CHEAP!
Reply-To: sts@mfltd.co.uk
Organization: Micro Focus Ltd, Newbury, England
Lines: 39
In article <1r6v3a$rj2@fg1.plk.af.mil>, ridout@bink.plk.af.mil (Brian S.  Ridout) writes:
|> In article <1993Apr15.134802.21995@mfltd.co.uk>, sts@mfltd.co.uk (Steve Sherwood (x5543)) writes:
|> |> Has anyone got multiverse to work ?
|> |>
|> |> I have built it on 486 svr4, mips svr4s and Sun SparcStation.
|> |>
|> |> There seems to be many bugs in it.  The 'dogfight' and 'dactyl' simply do nothing
|> |> (After fixing a bug where a variable is defined twice in two different modules - One needed
|> |> setting to static - else the client core-dumped)
|> |>
|> |> Steve
|> |> --
|> |>
|> |>          Extn 5543, sts@mfltd.co.uk, !uunet!mfocus!sts
|> |> +-----------------------------------+------------------------+ Micro Focus
|> |> | Just like Pariah, I have no name, |    rm -rf *            | 26 West Street
|> |> | Living in a blaze of obscurity,   |      "rum ruff splat"  | Newbury
|> |> | Need courage to survive the day.  |                        | Berkshire
|> |> +-----------------------------------+------------------------+ England
|> |>          (A)bort (R)etry (I)nfluence with large hammer
|> I built it on a rs6000 (my only Motif machine) works fine.  I added some objects
|> into dogfight so I could get used to flying.  This was very easy.
|> All in all Cool!.
|> Brian
The RS6000 compiler is so forgiving, I think that if you mixed COBOL & pascal
the C compiler still wouldn't complain. :-)
Steve
--
Extn 5543, sts@mfltd.co.uk, !uunet!mfocus!sts
+-----------------------------------+------------------------+ Micro Focus
| Just like Pariah, I have no name, |    rm -rf *            | 26 West Street
| Living in a blaze of obscurity,   |      "rum ruff splat"  | Newbury
| Need courage to survive the day.  |                        | Berkshire
+-----------------------------------+------------------------+ England
(A)bort (R)etry (I)nfluence with large hammer
From: diablo.UUCP!cboesel (Charles Boesel)
Subject: Alias phone number wanted
Organization: Diablo Creative
Reply-To: diablo.UUCP!cboesel (Charles Boesel)
X-Mailer: uAccess LITE - Macintosh Release: 1.6v2
Lines: 9
What is the phone number for Alias?
A toll-free number is preferred, if available.
Thanks
--
charles boesel @ diablo creative |  If Pro = for   and   Con = against
cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress?
+1.510.980.1958(pager)           |  What else, Congress.
From: diablo.UUCP!cboesel (Charles Boesel)
Subject: Re: Postscript drawing prog
Organization: Diablo Creative
Reply-To: diablo.UUCP!cboesel (Charles Boesel)
X-Mailer: uAccess LITE - Macintosh Release: 1.6v2
Lines: 22
In article <1993Apr19.171704.2147@Informatik.TU-Muenchen.DE> (comp.graphics.gnuplot,comp.graphics), rdd@uts.ipp-garching.mpg.de (Reinhard Drube) writes:
>In article <C5ECnn.7qo@mentor.cc.purdue.edu>, nish@cv4.chem.purdue.edu (Nishantha I.) writes:
>|> 	Could somebody let me know of a drawing utility that can be
>|> used to manipulate postscript files.I am specifically interested in
>|> drawing lines, boxes and the sort on Postscript contour plots.
>|> 	I have tried xfig and I am impressed by it's features. However
>|> it is of no use since I cannot use postscript files as input for the
>|> programme.Is there a utility that converts postscript to xfig format?
>|> 	Any help would be greatly appreciated.
>|> 				Nishantha
Have you checked out Adobe Illustrator? There are a few Unix versions
for it available, depending on your platform. I know of two Unix versions:
One for Mach (NeXT) and for Irix (SGI). There may be others, such
as for Sun SparcStation, but I don't know for sure.
ttyl,
--
charles boesel @ diablo creative |  If Pro = for   and   Con = against
cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress?
+1.510.980.1958(pager)           |  What else, Congress.
From: diablo.UUCP!cboesel (Charles Boesel)
Subject: Why does Illustrator AutoTrace so poorly?
Organization: Diablo Creative
Reply-To: diablo.UUCP!cboesel (Charles Boesel)
X-Mailer: uAccess LITE - Macintosh Release: 1.6v2
Lines: 12
I've been trying to figure out a way to get Adobe Illustrator
to auto-trace >exactly< what I see on my screen. But it misses
the edges of templates by as many as 6 pixels or more - resulting in images
that are useless  - I need exact tracing, not approximate.
I've tried adjusting the freehand tolerances as well as autotrace
tolerances but it doesn't help. Any suggestions?
--
charles boesel @ diablo creative |  If Pro = for   and   Con = against
cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress?
+1.510.980.1958(pager)           |  What else, Congress.
From: lm001@rrz.Uni-Koeln.DE (Erwin H. Keeve)
Subject: Marchin Cubes
Organization: Regional Computing Center, University of Cologne
Lines: 27
Distribution: world
NNTP-Posting-Host: rs1.rrz.uni-koeln.de
Keywords: Polygon Reduction
Hi there,
is there anybody who know a polygon_reduction algorithm for
marching cube surfaces. e.g. the algirithm of Schroeder,
Siggraph'92.
For any hints, hugs and kisses.
- Erwin
,,,
(o o)
___________________________________________oOO__(-)__OOo_____________
|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|_|
|_|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|___|
|                               |                                     |
| Erwin Keeve                   | adress:  Peter-Welter-Platz 2       |
|                               |          W-5000 Cologne 1, Germany  |
|                               |                                     |
| Dept. of Computergraphics &   | phone:   +49-221-20189-132 (-192)   |
|          Computeranimation    | FAX:     +49-221-20189-17           |
|                               |                                     |
| Academy of Media Arts Cologne | Email:   keeve@khm.uni-koeln.de     |
|_______________________________|_____________________________________|
From: u7711501@bicmos.ee.nctu.edu.tw (jih-shin ho)
Subject: disp135 [0/7]
Organization: National Chiao Tung University
X-Newsreader: TIN [version 1.1 PL8]
Lines: 285
I have posted disp135.zip to alt.binaries.pictures.utilities
******   You may distribute this program freely for non-commercial use
if no fee is gained.
******   There is no warranty. The author is not responsible for any
damage caused by this program.
Important changes since version 1.30:
Fix bugs in file management system (file displaying).
Improve file management system (more user-friendly).
Fix bug in XPM version 3 reading.
Fix bugs in TARGA reading/writng.
Fix bug in GEM/IMG reading.
Add support for PCX and GEM/IMG writing.
Auto-skip macbinary header.
(1) Introduction:
This program can let you READ, WRITE and DISPLAY images with different
formats. It also let you do some special effects(ROTATION, DITHERING ....)
on image. Its main purpose is to let you convert image among different
formts.
Include simple file management system.
Support 'slide show'.
There is NO LIMIT on image size.
Currently this program supports 8, 15, 16, 24 bits display.
If you want to use HiColor or TrueColor, you must have VESA driver.
If you want to modify video driver, please read section (8).
(2) Hardware Requirement:
PC 386 or better. MSDOS 3.3 or higher.
min amount of ram is 4M bytes(Maybe less memory will also work).
(I recommend min 8M bytes for better performance).
Hard disk for swapping(virtual memory).
The following description is borrowed from DJGPP.
Supported Wares:
* Up to 128M of extended memory (expanded under VCPI)
* Up to 128M of disk space used for swapping
* SuperVGA 256-color mode up to 1024x768
* 80387
* XMS & VDISK memory allocation strategies
* VCPI programs, such as QEMM, DESQview, and 386MAX
Unsupported:
* DPMI
* Microsoft Windows
Features: 80387 emulator, 32-bit unix-ish environment, flat memory
model, SVGA graphics.
(3) Installation:
Video drivers, emu387 and go32.exe are borrowed from DJGPP.
(If you use Western Digital VGA chips, read readme.wd)
(This GO32.EXE is a modified version for vesa and is COMPLETELY compatible
with original version)
+  *** But some people report that this go32.exe is not compatible with
+      other DJGPP programs in their system. If you encounter this problem,
+      DON'T put go32.exe within search path.
*** Please read runme.bat for how to run this program.
If you choose xxxxx.grn as video driver, add 'nc 256' to environment
GO32.
For example, go32=driver x:/xxxxx/xxxxx.grn nc 256
If you don't have 80x87, add 'emu x:/xxxxx/emu387' to environment GO32.
For example, go32=driver x:/xxxxx/xxxxx.grd emu x:/xxxxx/emu387
**** Notes: 1. I only test tr8900.grn, et4000.grn and vesa.grn.
Other drivers are not tested.
2. I have modified et4000.grn to support 8, 15, 16, 24 bits
display. You don't need to use vesa driver.
If et4000.grn doesn't work, please try vesa.grn.
3. For those who want to use HiColor or TrueColor display,
please use vesa.grn(except et4000 users).
You can find vesa BIOS driver from :
wuarchive.wustl.edu: /mirrors/msdos/graphics
godzilla.cgl.rmit.oz.au: /kjb/MGL
(4) Command Line Switch:
+   Usage : display [-d|--display initial_display_type]
+                   [-s|--sort sort_method]
+                   [-h|-?]
Display type: 8(SVGA,default), 15, 16(HiColor), 24(TrueColor)
+   Sort method: 'name', 'ext'
(5) Function Key:
F2 : Change disk drive
+   CTRL-A -- CTRL-Z : change disk drive.
F3 : Change filename mask (See match.doc)
F4 : Change parameters
F5 : Some effects on picture, eg. flip, rotate ....
F7 : Make Directory
t : Tag file
+ : Tag group files (See match.doc)
T : Tag all files
u : Untag file
- : Untag group files (See match.doc)
U : Untag all files
Ins : Change display type (8,15,16,24) in 'read' & 'screen' menu.
F6,m,M : Move file(s)
F8,d,D : Delete file(s)
r,R : Rename file
c,C : Copy File(s)
z,Z : Display first 10 bytes in Ascii, Hex and Dec modes.
+   f,F : Display disk free space.
Page Up/Down : Move one page
TAB : Change processing target.
Arrow keys, Home, End, Page Up, Page Down: Scroll image.
Home: Left Most.
End: Right Most.
Page Up: Top Most.
Page Down: Bottom Most.
in 'screen' & 'effect' menu :
Left,Right arrow: Change display type(8, 15, 16, 24 bits)
s,S : Slide Show. ESCAPE to terminate.
ALT-X : Quit program without prompting.
+   ALT-A : Reread directory.
Escape : Abort function and return.
(6) Support Format:
Read: GIF(.gif), Japan MAG(.mag), Japan PIC(.pic), Sun Raster(.ras),
Jpeg(.jpg), XBM(.xbm), Utah RLE(.rle), PBM(.pbm), PGM(.pgm),
PPM(.ppm), PM(.pm), PCX(.pcx), Japan MKI(.mki), Tiff(.tif),
Targa(.tga), XPM(.xpm), Mac Paint(.mac), GEM/IMG(.img),
IFF/ILBM(.lbm), Window BMP(.bmp), QRT ray tracing(.qrt),
Mac PICT(.pct), VIS(.vis), PDS(.pds), VIKING(.vik), VICAR(.vic),
FITS(.fit), Usenix FACE(.fac).
the extensions in () are standard extensions.
Write: GIF, Sun Raster, Jpeg, XBM, PBM, PGM, PPM, PM, Tiff, Targa,
XPM, Mac Paint, Ascii, Laser Jet, IFF/ILBM, Window BMP,
+        Mac PICT, VIS, FITS, FACE, PCX, GEM/IMG.
All Read/Write support full color(8 bits), grey scale, b/w dither,
and 24 bits image, if allowed for that format.
(7) Detail:
Initialization:
Set default display type to highest display type.
Find allowable screen resolution(for .grn video driver only).
1. When you run this program, you will enter 'read' menu. Whthin this
menu you can press any function key except F5. If you move or copy
files, you will enter 'write' menu. the 'write' menu is much like
'read' menu, but only allow you to change directory.
+       The header line in 'read' menu includes "(d:xx,f:xx,t:xx)".
+         d : display type. f: number of files. t: number of tagged files.
pressing SPACE in 'read' menu will let you select which format to use
for reading current file.
pressing RETURN in 'read' menu will let you reading current file. This
program will automatically determine which format this file is.
The procedure is: First, check magic number. If fail, check
standard extension. Still fail, report error.
pressing s or S in 'read' menu will do 'Slide Show'.
If delay time is 0, program will wait until you hit a key
(except ESCAPE).
If any error occurs, program will make a beep.
ESCAPE to terminate.
pressing Ins in 'read' menu will change display type.
pressing ALT-X in 'read' menu will quit program without prompting.
2. Once image file is successfully read, you will enter 'screen' menu.
Within this menu F5 is turn on. You can do special effect on image.
pressing RETURN: show image.
in graphic mode, press RETURN, SPACE or ESCAPE to return to text
mode.
pressing TAB: change processing target. This program allows you to do
special effects on 8-bit or 24-bit image.
pressing Left,Right arrow: change display type. 8, 15, 16, 24 bits.
pressing SPACE: save current image to file.
B/W Dither: save as black/white image(1 bit).
Grey Scale: save as grey image(8 bits).
Full Color: save as color image(8 bits).
True Color: save as 24-bit image.
This program will ask you some questions if you want to write image
to file. Some questions are format-dependent. Finally This program
will prompt you a filename. If you want to save file under another
directory other than current directory, please press SPACE. after
pressing SPACE, you will enter 'write2' menu. You can change
directory to what you want. Then,
pressing SPACE: this program will prompt you 'original' filename.
pressing RETURN: this program will prompt you 'selected' filename
(filename under bar).
3. This program supports 8, 15, 16, 24 bits display.
4. This Program is MEMORY GREEDY. If you don't have enough memory,
the performance is poor.
5. If you want to save 8 bits image :
try GIF then TIFF(LZW) then TARGA then Sun Raster then BMP then ...
If you want to save 24 bits image (lossless):
try TIFF(LZW) or TARGA or ILBM or Sun Raster
(No one is better for true 24bits image)
6. I recommend Jpeg for storing 24 bits images, even 8 bits images.
7. Not all subroutines are fully tested
8. This document is not well written. If you have any PROBLEM, SUGGESTION,
COMMENT about this program,
Please send to u7711501@bicmos.ee.nctu.edu.tw (140.113.11.13).
I need your suggestion to improve this program.
(There is NO anonymous ftp on this site)
(8) Tech. information:
Program (user interface and some subroutines) written by Jih-Shin Ho.
Some subroutines are borrowed from XV(2.21) and PBMPLUS(dec 91).
Tiff(V3.2) and Jpeg(V4) reading/writing are through public domain
libraries.
Compiled with DJGPP.
You can get whole DJGPP package from SIMTEL20 or mirror sites.
For example, wuarchive.wustl.edu: /mirrors/msdos/djgpp
(9) For Thoese who want to modify video driver:
1. get GRX source code from SIMTEL20 or mirror sites.
2. For HiColor and TrueColor:
15 bits : # of colors is set to 32768.
16 bits : # of colors is set to 0xc010.
24 bits : # of colors is set to 0xc018.
Acknowledgment:
I would like to thank the authors of XV and PBMPLUS for their permission
to let me use their subroutines.
Also I will thank the authors who write Tiff and Jpeg libraries.
Thank DJ. Without DJGPP I can't do any thing on PC.
Jih-Shin Ho
u7711501@bicmos.ee.nctu.edu.tw
From: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Subject: Re: POV file constructor for Unix/X11
Nntp-Posting-Host: merkur.prakinf.tu-ilmenau.de
Reply-To: schmidt@PrakInf.TH-Ilmenau.DE (Schmidt)
Organization: Technische Hochschule Ilmenau
Lines: 17
In article <1r7hl1$csc@st-james.comp.vuw.ac.nz>, Craig.Humphrey@comp.vuw.ac.nz (chumphre) writes:
|>
|> Hi, I'm just getting into PoVRay and I was wondering if there is a graphic
|> package that outputs .POV files.  Any help would be appreciated.
|> Thanks.
|>
A very good modeling package I found is `irit' (look for irit.tar.Z).
However there is no converter from it's format to POV format. I postet
a request for such a converter in this group but got no response,
so I'm considering to write such a program myself.
--
Sebastian Schmidt
TU Ilmenau Institut f. praktische Informatik
From: tp892275@vine.canberra.edu.au (C. Mierzanowski)
Subject: Which Video Card? (Please HELP)
Organization: Info Sci & Eng, University of Canberra, AUSTRALIA
Lines: 13
I've got a 386 20Hz computer which is under warranty and my Trident
8900C video card is starting to play-up (surprise, surprise). Therefore
I'm going to try to exchange it for a better card.
The BIG Question is:
Which video card is high quality and with an
acceptable price tag (on student budget) ???
Thank you in advance.
From: bernard@cs.su.oz.au (Bernard Gardner)
Subject: Re: Fast polygon routine needed
Organization: Basser Department of Computer Science
Keywords: polygon, needed
Lines: 10
For some reason I never saw the original post on this thread, but if you are
looking for fast polygon routines on vga on a PC, you really can't go past
the mode X stuff from Dr Dobbs. This code is all p.domain (as far as I know),
and in the original articles, the routines were all presented as dumb vga
routines, and then optimised to modeX with some interesting discussion along
the way.
If you are interested, I could find out more details of the issues in question,
(I have them at home).
Bernard.
From: ger@cv.ruu.nl (Ger Timmens)
Subject: Re: Postscript drawing prog
Nntp-Posting-Host: triton.cv.ruu.nl
Organization: University of Utrecht, 3D Computer Vision Research Group
Lines: 30
In <0010580B.vma7o9@diablo.UUCP> diablo.UUCP!cboesel (Charles Boesel) writes:
>In article <1993Apr19.171704.2147@Informatik.TU-Muenchen.DE> (comp.graphics.gnuplot,comp.graphics), rdd@uts.ipp-garching.mpg.de (Reinhard Drube) writes:
>>In article <C5ECnn.7qo@mentor.cc.purdue.edu>, nish@cv4.chem.purdue.edu (Nishantha I.) writes:
>>|> 	Could somebody let me know of a drawing utility that can be
>>|> used to manipulate postscript files.I am specifically interested in
>>|> drawing lines, boxes and the sort on Postscript contour plots.
>>|> 	I have tried xfig and I am impressed by it's features. However
>>|> it is of no use since I cannot use postscript files as input for the
>>|> programme.Is there a utility that converts postscript to xfig format?
>>|> 	Any help would be greatly appreciated.
>>|> 				Nishantha
>Have you checked out Adobe Illustrator? There are a few Unix versions
>for it available, depending on your platform. I know of two Unix versions:
>One for Mach (NeXT) and for Irix (SGI). There may be others, such
>as for Sun SparcStation, but I don't know for sure.
You can include postscript epsi files in xfig (encapsulated postscript
info files). You can't actually edit the postscript file, but you're able
to draw over the postscript file.
There a eps to epsi converter: eps2epsi (perl program),
Succes,
--
Ger Timmens (ger@cv.ruu.nl) 3DCV Research Group, Utrecht, The Netherlands
Tel.: +31 -30 50 67 11;      Room: F.01.7.03;      Fax.: +31 -30 51 33 99
Unquestionably, there is progress.  The average American now pays out
twice as much in taxes as he formerly got in wages. --- H. L. Mencken
From: SITUNAYA@IBM3090.BHAM.AC.UK
Subject: Any good Morphing Anims...
Organization: The University of Birmingham, United Kingdom
Lines: 8
NNTP-Posting-Host: ibm3090.bham.ac.uk
==============================================================================
Has anyone created any interesting animations using Dmorph
I seem to be unable to create anything that looks remotely
realistic although this is probably due to the crappy GIF's
at I am using (One of Captain Kirk and One of Spock), i'm a
bit of a 'Trekker'.  What are the best type of pictures to use.
thanks........
A.Situnayake
From: MCAVALCANTI%VORTEX.UFRGS.BR@UICVM.UIC.EDU
Subject: DTP
Organization: UTexas Mail-to-News Gateway
Lines: 3
NNTP-Posting-Host: cs.utexas.edu
Please Ineed information about desk top publishe- post graduate courses
and if possible email address or normal mail.
thanks in advance
From: hintmatt@cwis.isu.edu (HINTZE_MATTHEW)
Subject: Re: Diamond Stelth 24- any good?
Organization: Idaho State University, Pocatello
Lines: 26
NNTP-Posting-Host: cwis.isu.edu
I bought the diamond stealth 24 a few months ago.  it seems to be a
great card especially with my multimedia presentations.  It runs graphics
and animation as well as some near full motion video very well.  The only
thing I can tell that it lacks is speed above 256 colors.  Its qualit in
between 256 and 16.7 million collors un unreal but you definitly
compromise speed.  It seems to be a great card for graphics and it comes
with some great software, but Im not so sure about the excelerator
part.  I used to own a paridise and it doesnt seem to be much faster
than that.  One thing I do like is that it loads its own vesa driver
from ROM at startup, (I think) because I have never had to load it for
links386 or any other programs that require special VESA drivers at
startup.
gromi a16pd
HINTMATT@BA.BA.ISU.EDU
--
From: ldawes@uahcs2.cs.uah.edu (Lisa Dawes)
Subject: gif aerial maps?
Reply-To: ldawes@uahcs2.cs.uah.edu (Lisa Dawes)
Organization: Computer Science Dept. - Univ. of Alabama in Huntsville
Lines: 5
Is there an ftp site for maps of the US.  Preferably aerial
photographs?
Thanks
From: jbalgley@bbn.com (Jon Balgley)
Subject: Hidden-line removal program
Organization: Bolt Beranek and Newman (BBN)
Lines: 11
NNTP-Posting-Host: labs-n.bbn.com
I'm posting this for a friend:
I have an immediate need for a polygon-based hidden-line removal
program.  I can deal with any input/output format, but I need to be able
to do perspective views in any orientation and range.
Is there a public-domain hidden-line program around?  It seems like
there should be, but I have not been able to locate one.
Email replies and I will summarize.
Thanks
From: louis@loa.citilille.fr (Louis Gonzalez 20-43-41-19)
Subject: SPHINX: Satellite Image Processing under X11
Organization: Universite des Sciences et Technologie de LILLE, France
Lines: 106
NNTP-Posting-Host: loasil.citilille.fr
X-Newsreader: TIN [version 1.1 PL8]
****************************   SPHINX   ***************************
Sphinx is a user-friendly, state-of-the-art image processing
and analysis package that runs across a spectrum of high performance
computer platforms operating UNIX and the X-Window System.
It was created to meet to the daily research needs of scientists
conducting climate investigations using satellite data and remote
sensing techniques.
Intuitive Graphic Interface
Sphinx features an interactive interface with pop-up menus and
point-and-click dialog boxes which makes image processing and
analysis simple and fast.
This accessible menuing enables you to build attractive image
layouts quickly while also providing you the flexibility of returning
to the main menu to conduct other image analysis and processing operations.
Image Format Compatibility
Using smart read/write functions, Sphinx allows you to easily open
and save image files in a variety of formats using bit, integer or real
data values.  Sphinx also reads and writes the common TIFF and GIF formats
as well as compresses and decompresses image formats to save disk space.
Image Analysis & Processing
For image and pixel analysis, the Sphinx package includes an
assortment of processing tools that perform useful statistical and
mathematical filtering operations, such as Fourier transforms, convolution
product or principal component analyses.
An interactive interpreter for both algebraic equations and images allows
the user to manipulate and combine individual data channels interactively.
Standard FORTRAN notation is used for formula entry and for trig
onometric and transcendental functions.
Satellite Spectra & Orbit Analysis
Sphinx possesses functions to simulate satellite signal sensitivity
for various meteorological satellites (e.g., GOES, METEOSAT, NOAA, Spot etc.).
The simulations are conducted for a selection of standard atmospheric and
surface conditions and instrument spectral bands.
A geometry model computes the solar zenith angles, warping, orbit simulation,
and 3-D image projection.
Easy External Program Interfacing
Sphinx allows users the flexibility to integrate externally
developed software algorithms for processing and converting satellite
observations.  Sphinx exports and imports image files and image parameters
to external programs using special interface functions.
Quick Quality Presentation
Sphinx rapidly displays, manipulates, and enhances high-resolution
multispectral images and color tables.  Using six 8-bit 1024x1024 image
planes and one graphics plane, the package conveniently combines color images,
graphics and text to generate sharp digital images for articles and reports.
Sphinx's 2-D and 3-D graphics editor provides complete flexibility for modifying
and integrating vector graphics and analysis plots with images, such as
histograms and radial graphs.  The package supplies color and gray scale
output for standard inkjet and laser printers.
Other Capabilities Sphinx also performs image animation, external
graphics importing, mosaic fitting... what else?
Software Support & Development
Sphinx was developed at the Laboratoire d'Optique Atmospherique (LOA)
of the Universite de Lille, France.
The package has received critical feedback and support from scientists at
the French national laboratory, Centre National de Recherche Scientifique (CNRS),
and the French space agency, Centre National d'Etudes Spatiales (CNES).
At LOA, Sphinx undergoes continued refinement and development to meet changing
research needs and advances in computer technology.  The package, which features
on-line help, is supported by an Internet address
sphinx@loasil.citilille.fr through which questions can be answered and
version updates provided without delay.
Performance Tested
CNES has selected Sphinx to analyze and process the satellite data
collected during the upcoming ADEOS/POLDER satellite mission.  Today,
the Sphinx package is in use at the NASA - Goddard Space Flight Center
and is widely used in many French laboratories, including
the Centre de Recherche en Physique de l'Environnement, Ecole Normale Superieure ,
Laboratoire d' Etudes et de Recherches en Teledetection Spatiale,  Laboratoire
de Meteorologie Dynamique.
A TEST VERSION OF SPHINX IS AVAILABLE AT loasil.citilille.fr
(134.206.50.4) anonymous (bin : cd SPHINX : get ALL_SPHINX.tar.Z)
IN THE TEST VERSION THE OUTPUT FILES ARE DISABLE. HOWEVER THE
VISUALISATION AND GRAPHIC FUNCTIONS ARE AVAILABLE. THIS IS
SUFFICIENT TO WORK WITH.
IF YOU ARE INTERESTED IN KEEPING "SPHINX", SEND US YOUR EMAIL
AND YOU WILL RECEIVE NEWS ABOUT THE PACKAGE EVOLUTION.
THE SOFTWARE IS CHANGING WITH USER SUGGESTIONS WE WILL
APPRECIATE YOUR COMMENTS.
From: patrick@Erc.MsState.Edu (Patrick Bridges)
Subject: Re: Diamond Stelth 24- any good?
In-Reply-To: hintmatt@cwis.isu.edu's message of 23 Apr 1993 07:24:32 -0600
Nntp-Posting-Host: andy.erc.msstate.edu
Organization: /merlin-home2/patrick/.organization
Lines: 7
The real problem w/ the Stealth from what I've heard is that Diamond won't
tell anyone how to program their proprietary clock stuff, so X under Linux
and 386BSD won't run....
Patrick Bridges
patrick@erc.msstate.edu
From: dgf1@ellis.uchicago.edu (David Farley)
Subject: Re: Photoshop for Windows
Reply-To: dgf1@midway.uchicago.edu
Organization: University of Chicago
Lines: 37
In article <1r85m2$k66@agate.berkeley.edu> aron@tikal.ced.berkeley.edu (Aron Bonar) writes:
>In article <1993Apr22.011720.28958@midway.uchicago.edu>, dgf1@quads.uchicago.edu (David Farley) writes:
>|> In article <C5uHIM.JFq@rot.qc.ca> beaver@rot.qc.ca (Andre Boivert) writes:
>|> >
>|> >
>|> >I am looking for comments from people who have used/heard about PhotoShop
>|> >for Windows. Is it good? How does it compare to the Mac version? Is there
>|> >a lot of bugs (I heard the Windows version needs "fine-tuning)?
>|> >
>|> >Any comments would be greatly appreciated..
>|> >
>|> >Thank you.
>|> >
>|> >Andre Boisvert
>|> >beaver@rot.qc.ca
>|> >
>|> An review of both the Mac and Windows versions in either PC Week or Info
>|> World this week, said that the Windows version was considerably slower
>|> than the Mac.  A more useful comparison would have been between PhotoStyler
>|> and PhotoShop for Windows.  David
>|>
>
>I don't know about that...I've used Photoshop 2.5 on both a 486dx-50 and a Quadra
>950...I'd say they are roughly equal.  If anything the 486 was faster.
>
>Both systems were running in 24 bit color and had the same amount of RAM (16 megs)
>I also believe the quadra had one of those photoshop accelerators.
I went back and looked at the review again.  They claim there were
significant differences in manipulating a 27 meg test file, but with
smaller files, the two platforms were the about the same.  David
--
David Farley                           The University of Chicago Library
312 702-3426                              1100 East 57th Street, JRL-210
dgf1@midway.uchicago.edu                         Chicago, Illinois 60637
From: dgf1@ellis.uchicago.edu (David Farley)
Subject: Re: Why does Illustrator AutoTrace so poorly?
Reply-To: dgf1@midway.uchicago.edu
Organization: University of Chicago
Lines: 25
In article <0010580B.vmcbrt@diablo.UUCP> diablo.UUCP!cboesel (Charles Boesel) writes:
>I've been trying to figure out a way to get Adobe Illustrator
>to auto-trace >exactly< what I see on my screen. But it misses
>the edges of templates by as many as 6 pixels or more - resulting in images
>that are useless  - I need exact tracing, not approximate.
>
>I've tried adjusting the freehand tolerances as well as autotrace
>tolerances but it doesn't help. Any suggestions?
>
>--
>charles boesel @ diablo creative |  If Pro = for   and   Con = against
>cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress?
>+1.510.980.1958(pager)           |  What else, Congress.
I've had exactly the same problems in Aldus Freehand.  I think autotracing
is one of those "features" that barely works, but everybody feels compelled
to throw it in because the other guys are doing it.  :)
--
David Farley                           The University of Chicago Library
312 702-3426                              1100 East 57th Street, JRL-210
dgf1@midway.uchicago.edu                         Chicago, Illinois 60637
From: 8910782@sunvax.sun.ac.za
Subject: Rayshade query
Article-I.D.: sunvax.1993Apr23.104107.5742
Organization: University of Stellenbosch
Lines: 23
Hi there
I am very interested in Rayshade 4.00. I have managed to make a chessboard
for Rayshade. Unfortunately I still have to do the knight (horse). Any ideas?
I am also looking for a surface for the chesspieces. The board is marble.
Unfortunately black won't work very well for the one side. Anybody with ideas
for nice surfaces?
I would also like to use the image command of rayshade and the heightfield
command. Unfortunately the manual is very vague about this, and I don't have
Craig Kolb's email address. Anybody with ideas, because this is essential
for my next venture into raytracing.
Where should I post the finished chessboard?
Is there anybody else using rayshade on non-Unix systems?
How fast does Unix render?
Thanks
Rayshade is the best program for people who loves graphics, but have no
artistic talent.
From: renes@ecpdsharmony.cern.ch (Rene S. Dutch student)
Subject: InterViews graphics package
Organization: CERN European Lab for Particle Physics
Lines: 7
Hello,
I'm trying out the C++ graphics package InterViews. Besides the man pages
on the classes, I haven't got any documentation. Is there anything else
around? Furthermore, can anyone send me a (small!) example program
which shows how to use these classes together ? I would be very gratefull...
From: leyfre@McRCIM.McGill.EDU (Frederic Leymarie)
Subject: Re: Developable Surface
Organization: McGill Research Center for Intelligent Machines, Montreal, Canada
Lines: 38
In article <C5x9xs.KHE@hkuxb.hku.hk>, h8902939@hkuxa.hku.hk (Abel) writes:
|> Hi netters,
|> 	I am currently doing some investigations on "Developable Surface".
|> Can anyone familiar with this topic give me some information or sources
|> which can allow me to find some infomation of developable surface?
|> 	Thanks for your help!
|> Abel
|> h8902939@hkuxa.hku.hk
A developable surface is s.t. you can lay it (or roll it) flat on the
plane (it may require you to give it a "cut" though...)
E.g., a cylinder, a cone, a plane (of course!) or any surface or patch
having vanishing Gaussian (intrinsic) curvature (i.e., with singular
Hessian, the matrix of 2nd derivatives for an adequate coordinate patch)
are "developable". In more technical words, a developable surface is
"locally isometric to a plane" at all points.
Think also of the sphere (or the earth) which in a non-developable:
whatever way(s) you cut it, you will not be able to lay flat any pieces
of it... (its intrinsic curvature is nowhere vanishing).
For more details on this look at any book on differential geometry
which treats surfaces (2D manifolds); e.g., M. do Carmo's book:
@Book{Carmo76Differential,
author =      {do Carmo, Manfredo P.},
title =       {Differential Geometry of Curves and Surfaces},
year =        1976,
publisher =   {Prentice-Hall},
note =        {503 pages.}}
Enjoy!
--
Frederic Leymarie -- leyfre@mcrcim.mcgill.edu
McGill University, Electrical Eng. Dept., McRCIM,    |	Tel.: (514) 398-8236
3480 University St., Montreal, QC, CANADA, H3A 2A7.  |	FAX:  (514) 398-7348
From: pinky@tamu.edu (The Man behind The Curtain)
Subject: Views on isomorphic perspectives?
Organization: Texas A&M University
Lines: 87
NNTP-Posting-Host: tamsun.tamu.edu
Keywords: isomorphic perspectives
I'm working upon a game using an isometric perspective, similar to
that used in Populous.  Basically, you look into a room that looks
similar to the following:
xxxx
xxxxx   xxxx
xxxx    x       xxxx
xxxx        x           xxxx
xxxx     2      xxxx     1      xxxx
x           xxxx    xxxx           x
x       xxxx            xxxx       x
x   xxxx             o      xxxx   x
xxxx              3 /|\         xxxx
xxxx            /~\     xxxx
xxxx            xxxx
xxxx    xxxx
xxxx
The good thing about this perspective is that you can look and move
around in three dimensions and still maintain your peripheral vision. [*]
Since your viewpoint is always the same, the routines can be hard-coded
for a particular vantage.  In my case, wall two's rising edge has a slope
of 1/4. (I'm also using Mode X, 320x240).
I've run into two problems; I'm sure that other readers have tried this
before, and have perhaps formulated their own opinions:
1) The routines for drawing walls 1 & 2 were trivial, but when I ran a
packed->planar image through them, I was dismayed by the "jaggies."  I'm
now considered some anti-aliasing routines (speed is not really necessary).
Is it worth the effort to have the artist draw the wall already skewed,
thus being assured of nice image, or is this too much of a burden?
2) Wall 3 presents a problem; the algorithm I used tends to overly distort
the original.  I tried to decide on paper what pixels go where, and failed.
Has anyone come up with method for mapping a planar to crosswise sheared
shape?
Currently I take:
1  2  3  4  5  6  7  8  9 10 11 12 13 14 15 16
17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32
33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
and produce:
1  2  3  4
33 34 35 36 17 18 19 20  5  6  7  8
49 50 51 52 37 38 39 40 21 22 23 24  9 10 11 12
53 54 55 56 41 42 43 44 25 26 27 28 13 14 15 16
57 58 59 60 45 46 47 48 29 30 31 32
61 62 63 64
Line 1 follows the slope.  Line 2 is directly under line 1.
Line 3 moves up a line and left 4 pixels.  Line 4 is under line 3.
This fills the shape exactly without any unfilled pixels.  But
it causes distortions.  Has anyone come up with a better way?
Perhaps it is necessary to simply draw the original bitmap
already skewed?
Are there any other particularly sticky problems with this perspective?
I was planning on having hidden plane removal by using z-buffering.
Locations are stored in (x,y,z) form.
[*] For those of you who noticed, the top lines of wall 2 (and wall 1)
*are* parallel with its bottom lines.  This is why there appears to
be an optical illusion (ie. it appears to be either the inside or outside
of a cube, depending on your mood).  There are no vanishing points.
This simplifies the drawing code for objects (which don't have to
change size as they move about in the room).  I've decided that this
approximation is alright, since small displacements at a large enough
distance cause very little change in the apparent size of an object in
a real perspective drawing.
Hopefully the "context" of the picture (ie. chairs on the floor, torches
hanging on the walls) will dispell any visual ambiguity.
Thanks in advance for any help.
--
Till next time,                \o/   \o/
V \o/ V     email:pinky@tamu.edu
<>  Sam  Inala  <>                 V
From: besmith@uncc.edu (Brian E Smith)
Subject: Re: Rayshade query
Nntp-Posting-Host: ws27.uncc.edu
Reply-To: besmith@uncc.edu
Organization: University of NC at Charlotte
Lines: 22
In article 5742@sunvax.sun.ac.za, 8910782@sunvax.sun.ac.za () writes:
>I am also looking for a surface for the chesspieces. The board is marble.
>Unfortunately black won't work very well for the one side. Anybody with ideas
>for nice surfaces?
How about brass or silver?  I've seen real chessboards that use that material.
>
>Where should I post the finished chessboard?
>
Right here is as good a place as any.  Can't wait to see it.  I use the POV
raytracer - is it compatible enough for your chessboard?
-------------------------------------------------------------------------------
"I don't know if you've got the whole picture or not, but it doesn't
seem like he's running on all thrusters!" -- Leonard McCoy
"A guess?  You, Spock?  That's extraordinary!" -- James T. Kirk
-------------------------------------------------------------------------------
Brian Smith  (besmith@mosaic.uncc.edu)
From: spl@dim.ucsd.edu (Steve Lamont)
Subject: Re: Finding equally spaced points on a sphere.
Organization: University of Calif., San Diego/Microscopy and Imaging Resource
Lines: 326
NNTP-Posting-Host: dim.ucsd.edu
In article <4615trd@rpi.edu> deweeset@ptolemy2.rdrc.rpi.edu (Thomas E. DeWeese) writes:
>  Hello, I know that this has been discussed before.  But at the time
>I didn't need to teselate a sphere.  So if any kind soul has the code
>or the alg, that was finally decided upon as the best (as I recall it
>was a nice, iterative subdivision meathod), I would be very
>appreciative.
Here is one by Andrew "Graphics Gems" Glassner that I got from a
collegue of mine.  I think I fiddled with it a little bit to make it
deal with whatever bizarre problem I was working on at the time but it
is known to work.
spl
- - - -
/* spheres
ASG     9 Feb 85
spl Thu Mar  8 17:17:40 EST 1990
*/
#include <stdio.h>
#include <math.h>
#define PI 3.141592654
struct Point_struct {
double x, y, z;
};
static double radius;
static double xorg;
static double yorg;
static double zorg;
do_sphere( r, freq, x, y, z )
double r;
int freq;
double x;
double y;
double z;
{
int pole;
double northy, southy, poley;
double rtheta, rtheta2, ntheta, ntheta2, magicangle;
double theta, thetastart, thisy, den, t;
struct Point_node *pnp;
struct Point_struct p1, p2, p3, p4, n1, n2, n3, n4, pt;
radius = r;
xorg = x;
yorg = y;
zorg = z;
/* north pole */
magicangle = 30.0*PI/180.0;
northy = radius*sin(magicangle);
southy = -radius*sin(magicangle);
for (pole=0; pole<2; pole++) {
if (pole==0) {
poley=radius;
thisy=northy;
thetastart=0.0;
}
else {
poley= -radius;
thisy=southy;
thetastart=36.0;
}
for ( theta = thetastart; theta < 360.0; theta += 60.0 ) {
rtheta = theta*PI/180.0;
rtheta2 = (theta+60.0)*PI/180.0;
p1.x = 0.0;
p1.y = poley;
p1.z = 0.0;
p2.x = radius*cos(rtheta);
p2.y = thisy;
p2.z = radius*sin(rtheta);
p3.x = radius*cos(rtheta2);
p3.y = thisy;
p3.z = radius*sin(rtheta2);
if (pole==0) {
/* make ring go the other way so normals are right */
pt.x = p3.x;
pt.y = p3.y;
pt.z = p3.z;
p3.x = p2.x;
p3.y = p2.y;
p3.z = p2.z;
p2.x = pt.x;
p2.y = pt.y;
p2.z = pt.z;
}
den = (p1.x*p1.x)+(p1.y*p1.y)+(p1.z*p1.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p1.x *= t;
p1.y *= t;
p1.z *= t;
}
den = (p2.x*p2.x)+(p2.y*p2.y)+(p2.z*p2.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p2.x *= t;
p2.y *= t;
p2.z *= t;
}
den = (p3.x*p3.x)+(p3.y*p3.y)+(p3.z*p3.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p3.x *= t;
p3.y *= t;
p3.z *= t;
}
subdivide_tri(&p1,&p2,&p3,freq);
}
}
/* now the body */
for (theta=0.0; theta<360.0; theta += 60.0) {
rtheta = theta*PI/180.0;
rtheta2 = (theta+60.0)*PI/180.0;
ntheta = (theta+36.0)*PI/180.0;
ntheta2 = (theta+96.0)*PI/180.0;
p1.x = radius*cos(rtheta);
p1.y = northy;
p1.z = radius*sin(rtheta);
p2.x = radius*cos(rtheta2);
p2.y = northy;
p2.z = radius*sin(rtheta2);
p3.x = radius*cos(ntheta);
p3.y = southy;
p3.z = radius*sin(ntheta);
p4.x = radius*cos(ntheta2);
p4.y = southy;
p4.z = radius*sin(ntheta2);
den = (p1.x*p1.x)+(p1.y*p1.y)+(p1.z*p1.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p1.x *= t;
p1.y *= t;
p1.z *= t;
}
den = (p2.x*p2.x)+(p2.y*p2.y)+(p2.z*p2.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p2.x *= t;
p2.y *= t;
p2.z *= t;
}
den = (p3.x*p3.x)+(p3.y*p3.y)+(p3.z*p3.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p3.x *= t;
p3.y *= t;
p3.z *= t;
}
den = (p4.x*p4.x)+(p4.y*p4.y)+(p4.z*p4.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p4.x *= t;
p4.y *= t;
p4.z *= t;
}
subdivide_tri(&p1,&p2,&p3,freq);
subdivide_tri(&p3,&p2,&p4,freq);
}
return;
}
#define norm_pt(v) { register double r = sqrt( ( ( v )->x * ( v )->x ) + \
( ( v )->y * ( v )->y ) + \
( ( v )->z * ( v )->z ) ); \
( v )->x /= r; \
( v )->y /= r; \
( v )->z /= r; \
}
subdivide_tri(p1,p2,p3,a)
struct Point_struct *p1, *p2, *p3;
int a;
{
struct Point_struct n1, n2, n3;
struct Point_struct p12, p13, p23;
double den, t;
if (a>0) {
p12.x = (p1->x+p2->x)/2.0;
p12.y = (p1->y+p2->y)/2.0;
p12.z = (p1->z+p2->z)/2.0;
den = (p12.x*p12.x)+(p12.y*p12.y)+(p12.z*p12.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p12.x *= t;
p12.y *= t;
p12.z *= t;
}
p13.x = (p1->x+p3->x)/2.0;
p13.y = (p1->y+p3->y)/2.0;
p13.z = (p1->z+p3->z)/2.0;
den = (p13.x*p13.x)+(p13.y*p13.y)+(p13.z*p13.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p13.x *= t;
p13.y *= t;
p13.z *= t;
}
p23.x = (p2->x+p3->x)/2.0;
p23.y = (p2->y+p3->y)/2.0;
p23.z = (p2->z+p3->z)/2.0;
den = (p23.x*p23.x)+(p23.y*p23.y)+(p23.z*p23.z);
den = sqrt(den);
if (den != 0.0) {
t = radius / den;
p23.x *= t;
p23.y *= t;
p23.z *= t;
}
subdivide_tri(p1,  &p12,&p13,a-1);
subdivide_tri(&p12, p2, &p23,a-1);
subdivide_tri(&p13,&p23, p3, a-1);
subdivide_tri(&p12,&p23,&p13,a-1);
} else {
n1.x = p1->x;
n1.y = p1->y;
n1.z = p1->z;
norm_pt(&n1);
n2.x = p2->x;
n2.y = p2->y;
n2.z = p2->z;
norm_pt(&n2);
n3.x = p3->x;
n3.y = p3->y;
n3.z = p3->z;
norm_pt(&n3);
/* nothing special about this poly */
printf( "%f %f %f  %f %f %f\n", p1->x + xorg,
p1->y + yorg,
p1->z + zorg,
n1.x, n1.y, n1.z );
printf( "%f %f %f  %f %f %f\n", p2->x + xorg,
p2->y + yorg,
p2->z + zorg,
n2.x, n2.y, n2.z );
printf( "%f %f %f  %f %f %f\n", p3->x + xorg,
p3->y + yorg,
p3->z + zorg,
n3.x, n3.y, n3.z );
}
return;
}
--
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@szechuan.ucsd.edu
San Diego Microscopy and Imaging Resource/UC San Diego/La Jolla, CA 92093-0608
"My other car is a car, too."
- Bumper strip seen on I-805
From: beck@irzr17.inf.tu-dresden.de (Andre Beck)
Subject: Re: Fonts in POV??
Organization: Dept. of Computer Science, TU Dresden, Germany.
Lines: 57
Distribution: world
Reply-To: Andre_Beck@IRS.Inf.TU-Dresden.DE
NNTP-Posting-Host: irzr17.inf.tu-dresden.de
Keywords: fonts, raytrace
In article <1qg9fc$et9@wampyr.cc.uow.edu.au>, g9134255@wampyr.cc.uow.edu.au (Coronado Emmanuel Abad) writes:
|>
|>
|> 	I have seen several ray-traced scenes (from MTV or was it
|> RayShade??) with stroked fonts appearing as objects in the image.
|> The fonts/chars had color, depth and even textures associated with
|> them.  Now I was wondering, is it possible to do the same in POV??
|>
Hi Noel,
I've made some attempts to write a converter that reads Adobe Type 1 fonts,
triangulates them, bevelizes them and extrudes them to result in a generic
3d object which could be used with PoV f.i.
The problem I'm currently stuck on is that theres no algorithm which
triangulates any arbitrary polygonal shape. Delaunay seems to be limited
to convex hulls. Constrained delaunay may be okay, but I have no code
example of how to do it.
Another way to do the bartman may be
- TGA2POV
- A selfmade variation of this, using heightfields.
Create a b/w picture (BIG) of the text you need, f.i. using a PostScript
previewer. Then, use this as a heightfield. If it is white on black,
the heightfield is exactly the images white parts (it's still open
on the backside). To close it, mirror it and compound it with the original.
Example:
object {
union {
height_field { gif "abp2.gif" }
height_field { gif "abp2.gif" scale <1 -1 1>}
}
texture {
Glass
}
translate <-0.5 0 -0.5>      //center
rotate <-90 0 0>             // rotate upwards
scale  <10 5 100>            // scale bigger and thicker
translate <0 2 0>            // final placement
}
abp2.gif is a GIF of arbitrary size containing "ABP" black on white in
Times-Roman 256 points.
--
+-o-+--------------------------------------------------------------+-o-+
| o |                \\\-  Brain Inside -///                       | o |
| o |                    ^^^^^^^^^^^^^^^                           | o |
| o | Andre' Beck (ABPSoft) mehl: Andre_Beck@IRS.Inf.TU-Dresden.de | o |
+-o-+--------------------------------------------------------------+-o-+
From: samson@prlhp1.prl.philips.co.uk (Mark Samson)
Subject: Psygnosis CD-I titles (was Re: Rumours about 3DO ???)
Reply-To: samson@prlhp1.UUCP (Mark Samson)
Organization: Philips Research Laboratories, Redhill, UK
Lines: 42
In article <1993Apr20.130854.27039@rchland.ibm.com> ricardo@rchland.vnet.ibm.com (Ricardo Hernandez Muchado) writes:
>
>   Anyway, still with 15Mhz, you need sprites for a lot of tricks for
>making cool awesome games (read psygnosis).
Speaking of Psygnosis, they have licensed games to Philips Interative
Media International for CD-I.
The following was recently posted in a message in the CD-I section of
the Multimedia Forum.
"Seventh Guest has been licensed by Virgin Games to Philips Interactive
Media International for worldwide CD-I rights. Were also licensed to
P.I.M.I. Litil Divil from Gremlin Graphics (UK) and Microcosm from
Psygnosis (UK). Those three titles will be adapted on CD-I using the full
potential of the FMV cartridge, meaning, using the additional memory as
well as the motion video capabilities. Those titles have been negociated
in Europe but will be available worldwide.
Also, Lemmings 1 & 2 have been licensed from Psygnosis, as well as Striker
Soccer from Rage (UK)."
I don't know when these titles will be available or when work on them even
started (so don't expect your CD-I retailer to have them yet).
There was also some mention of future Nintendo CD-I games in an issue of the
UK magazine ERT - Mario Hotel was mentioned as having 75 levels.
Mark
[Although I work for Philips, I don't work on CD-I or multimedia. The above
info is just provided in good faith from what I've read and does not
represent any statement from Philips]
******************************************************************************
Mark Samson: Information Technology Group, Philips Research Laboratories,
Cross Oak Lane, Redhill, Surrey RH1 5HA
Tel(my Ext): 0293 815387 Tel(labs): 0293 785544 Telex: 877261 Fax: 0293 776495
Email:- SERI: samson@prlhp0  UNIX: samson@prl.philips.co.uk
Binary files: packages@prlhp0
******************************************************************************
From: sherry@a.cs.okstate.edu (SHERRY ROBERT MICH)
Subject: Re: .SCF files, help needed
Organization: Oklahoma State University
Lines: 27
From article <1993Apr21.013846.1374@cx5.com>, by tlc@cx5.com:
>
>
> I've got an old demo disk that I need to view. It was made using RIX Softworks.
> The files on the two diskette set end with: .scf
>
> The demo was VGA resolution (256 colors), but I don't know the spatial
> resolution.
>
According to my ColoRIX manual .SCF files are 640x480x256
> First problem: When I try to run the demo, the screen has two black bars that
> cut across (horizontally) the screen, in the top third and bottom third of the
> screen. The bars are about 1-inch wide. Other than this, the demo (the
> animation part) seems to be running fine.
>
> Second problem: I can't find any graphics program that will open and display
> these files. I have a couple of image conversion programs, none mention .scf
> files.
>
You may try VPIC, I think it handles the 256 color RIX files OK..
Rob Sherry
sherry@a.cs.okstate.edu
From: chris@sarah.lerc.nasa.gov (Chris Johnston)
Subject: Re: 3d-Studio V2.01 : Any differences with previous version
Organization: NASA Lewis Research Center, Cleveland, OH
Lines: 13
Distribution: world
Reply-To: chris@sarah.lerc.nasa.gov (Chris Johnston)
NNTP-Posting-Host: looney.lerc.nasa.gov
Keywords: 3d studio 2.01
As I understand it, THe difference between 3D Studio 2.00 and 2.01 is mainly
in the IPAS interface, along with a few small bug fixes. The IPAS code runs
a lot faster in the newest version.
--
+---------------------------------------------------------------------------+
| Chris Johnston                  (216) 433-5029                            |
| Materials Engineer		  (216) 433-5033                            |
| NASA Lewis Research Center   Internet: chris@sarah.lerc.nasa.gov          |
| 21000 Brookpark Rd MS 105-1		 				    |
| Cleveland, OH 4413 USA	Resistance is futile!			    |
+---------------------------------------------------------------------------+
From: aleahy@cch.coventry.ac.uk (ODD FROG)
Subject: Re: Photoshop for Windows
Nntp-Posting-Host: cc_sysh
Organization: ODD FROGS BALLOON SHOP
Lines: 21
In article <C5uHIM.JFq@rot.qc.ca> beaver@rot.qc.ca (Andre Boivert) writes:
>
>
>I am looking for comments from people who have used/heard about PhotoShop
>for Windows. Is it good? How does it compare to the Mac version? Is there
>a lot of bugs (I heard the Windows version needs "fine-tuning)?
>
Also photoshopII is out soon, has anyone got a date and any cofmments?
Andy
_______________________________________________________
| Andrew Leahy | aleahy@cch.coventry.ac.uk | Odd FROG |
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
"What a piece of work is man! how noble in reason! how infinite in faculties!
in form and moving, how express and admirable! in action how like an angel!
in apprehension how like a god! the beauty of the world, the paragon of
animals! And yet to me what is the quintessence if dust?
Man delights not me....... "
Shakespeare, Hamlet
From: brian@porky.contex.com (Brian Love)
Subject: Re: TIFF: philosophical significance of 42
Organization: Xyvision Design Systems
Lines: 9
In article <25335@alice.att.com> td@alice.att.com (Tom Duff) writes:
>ulrich@galki.toppoint.de wrote:
>> Does anyone have any  other suggestions where the 42 came from?
>Forty-two is six times nine.
...for very small values of six and nine.
(Sorry, Tom, I couldn't resist...)
From: erikb@idt.unit.no (Erik Brenn)
Subject: graphics formats
Reply-To: erikb@idt.unit.no (Erik Brenn)
Organization: Norwegian Institue of Technology
Lines: 14
I'm currently looking for information about different graphics
formats, especially PPM, PCX BMP and perhaps GIF.
Does anyone know if there exist any files at some site
that describes these formats ???
Thanks !
--
~~~
(o o)           | Erik Brenn ,email: erikb@idt.unit.no
(  O  )   oOOO   | Faculty of Computer Science & Telematics
\\_//    / /    | The Norwegian Institute of Technology, Trondheim
-oOOO--------------------| Not to make sense, just cents !
From: IMAGING.CLUB@OFFICE.WANG.COM ("Imaging Club")
Subject: Re: WANTED: Info on Image Databases
Organization: Mail to News Gateway at Wang Labs
Lines: 14
Padmini Srivathsa in Wisconsin writes:
>I would like references to any introductory material on image
>databases.
I'd be happy to US (international) Snail mail technical information on
imaging databases to anyone who needs it, if you can provide me with your
address for hard copy (not Email).  We're focusing mostly on Open PACE,
Oracle, Ingres, Adabas, Sybase, and Gupta, regarding our imaging
databases installed.  (We have over 1,000 installed and in production now;
most of the new ones going in are on Novell LANs, the RS/6000, and now HP
Unix workstations.)  We work with Visual Basic too.
Michael.Willett@OFFICE.Wang.com
From: prestonm@cs.man.ac.uk (Martin Preston)
Subject: Problems grabbing a block of a Starbase screen.
Keywords: Starbase, HP
Lines: 26
At the moment i'm trying to grab a portion of a Starbase screen, and store it
in an area of memory. The data needs to be in a 24-bit format (which
shouldn't be a problem as the app is running on a 24 bit screen), though
i'm not too fussy about the exact format.
(I actually intend to write the data out as a TIFF but that bits not the
problem)
Does anyone out there know how to grab a portion of the screen? The
block_read call seems to grab the screen, but not in 24 bit colour,
whatever the screen/window type i get 1 byte per pixel.
thanks in advance,
Martin
--
---------------------------------------------------------------------------
|Martin Preston,      (m.preston@manchester.ac.uk)    | Computer Graphics |
|Computer Graphics Unit, Manchester Computing Centre, |    is just        |
|University of Manchester,                            |  a load of balls. |
|Manchester, U.K., M13 9PL     Phone : 061 275 6095   |                   |
---------------------------------------------------------------------------
From: tom@inferno.UUCP (Tom Sherwin)
Subject: Re: XV under MS-DOS ?!?
Organization: Periphonics Corporation
Lines: 30
NNTP-Posting-Host: ablaze
|> Hi ... Recently I found XV for MS-DOS in a subdirectory of GNU-CC (GNUISH). I
|> use frequently XV on a Sun Spark Station 1 and I never had problems, but when I
|> start it on my computer with -h option, it display the help menu and when I
|> start it with a GIF-File my Hard disk turns 2 or 3 seconds and the prompt come
|> back.
|>
|> My computer is a little 386/25 with copro, 4 Mega rams, Tseng 4000 (1M) running
|> MS-DOS 5.0 with HIMEM.SYS and no EMM386.SYS. I had the GO32.EXE too... but no
|> driver who run with it.
|>
|> Do somenone know the solution to run XV ??? any help would be apprecied..
|>
You probably need an X server running on top of MS DOS.  I use Desqview/X
but any MS-DOS X server should do.
--
XX           X  Technical documentation is writing 90% of the words
XX         X  for 10% of the features that only 1% of the customers
XX       X  actually use.
XX     X  -------------------------------------------------------
A PC to  XX   X  I don't have opinions, I have factual interpretations...
the power  XX X                                 -Me
of      X XX  ---------------------------------------------------------
X   XX  ...uunet!rutgers!mcdhup!inferno!tom can be found at
X     XX               Periphonics Corporation
X       XX  4000 Veterans Memorial Highway  Bohemia, NY 11716
X         XX  ----------------------------------------------------
X           XX  They pay me to write, not express their opinions...
From: zeno@phylo.genetics.washington.edu (Sean Lamont)
Subject: Closed-curve intersection
Article-I.D.: shelley.1ra2paINN68s
Organization: Abstract Software
Lines: 10
NNTP-Posting-Host: phylo.genetics.washington.edu
I would like a reference to an algorithm that can detect whether
one closed curve bounded by some number of bezier curves lies completely
within another closed curve bounded by bezier curves.
Thanks.
--
Sean T. Lamont                           |   Ask me about the WSI-Fonts
zeno@genetics.washington.edu             |   Professional collection for NeXT
lamont@abstractsoft.com                  |____________________________________
Abstract Software
From: thomas@ramsey.cs.laurentian.ca (F. Thomas)
Subject: print graph on printer
Organization: Dept. of Computer Science, Laurentian University, Sudbury, ON
Lines: 6
This seems to be a simple problem but I just cannot solve it.
I wrote a C program to draw some polygons on the screen, and I want to
print it on my printer. So, I press "print-screen" on the keyboard.
The problem is the printer just print out some ASCII characters.
Is there any other way to print the screen without using "print-screen"????
Please help!
From: diablo.UUCP!cboesel (Charles Boesel)
Subject: Is there an FTP achive for USGS terrain data
Organization: Diablo Creative
Reply-To: diablo.UUCP!cboesel (Charles Boesel)
X-Mailer: uAccess LITE - Macintosh Release: 1.6v2
Lines: 6
Is there an FTP archive for United States Geological Services (USGS)
terrain data? If so, where?
--
charles boesel @ diablo creative |  If Pro = for   and   Con = against
cboesel@diablo.uu.holonet.net    |  Then what's the opposite of Progress?
+1.510.980.1958(pager)           |  What else, Congress.
From: squeegee@world.std.com (Stephen C. Gilardi)
Subject: Need PostScript strokeadjust info
Summary: Seeking algorithm for endpoint "snapping"
Keywords: postscript emulation adjust stroke strokeadjust
Organization: SQ Software via The World Public Access UNIX, Brookline, MA
Lines: 31
I need information on the Display PostScript strokeadjust feature.
This feature adjusts the endpoints of lines so that the displayed line
looks better on low resolution devices.
The PostScript literature explains the process to some extent.  They
also give an example of how to "emulate" strokeadjust in PostScript
environments where it is absent.
The suggested emulation is to modify the coordinates of the endpoints
of a line using the following formula for each coordinate:
new_coord = (round (old_coord - 0.25)) + 0.25
Doing this we end up with all coordinates ending in ".25".  From
reading I thought that what they might actually do is:
new_coord = ((trunc (old_coord * 2)) / 2) + 0.25
This results in all the coordinates ending in either "0.25" or "0.75"
whichever is closer.
By doing some actual comparisons with Display PostScript, I find that
neither of these is what DPS really uses.  Since I like how the DPS
result looks better than how my stuff looks, I'd like to know if
anyone who knows how DPS does it is willing/able to tell me.
Thanks,
--Steve
squeegee@world.std.com
From: news@magnus.acs.ohio-state.edu
Subject: Package for Fashion Designer?
Nntp-Posting-Host: bottom.magnus.acs.ohio-state.edu
Organization: The Ohio State University
Lines: 1
This article was probably generated by a buggy news reader.
From: gwang@magnus.acs.ohio-state.edu (Ge Wang)
Subject: Packages for Fashion Designers?
Nntp-Posting-Host: bottom.magnus.acs.ohio-state.edu
Organization: The Ohio State University
Lines: 3
Hello, I am looking for commercial software packages for professional
fashion designers.  Any recommendation and pointers are greatly appreciated.
Please e-mail me, if you may.  Thanks a million.  -- Ge
From: ajackson@cch.coventry.ac.uk (Alan Jackson)
Subject: MPEG Location
Nntp-Posting-Host: cc_sysh
Organization: Coventry University
Lines: 11
Can anyone tell me where to find a MPEG viewer (either DOS or
Windows).
Thanks in advance.
--
Alan M. Jackson      Mail : ajackson@cch.cov.ac.uk
Liverpool Football Club - Simply The Best
"You'll Never Walk Alone"
From: eeerik@cc.newcastle.edu.au
Subject: Color palette for 256 color VGA rainbow
Organization: University of Newcastle, AUSTRALIA
Lines: 11
Does anybody out there have or know how to calculate the RGB values
required to set the 256 color VGA palette so that the colors from
0..255 will give 256 colors  of the rainbow ie red, orange,
yellow, etc.
Any help would be appreciated. Please email to eeerik@cc.newcastle.edu.au
Erik de Castro Lopo,
Dept. Electrical & Computer Eng.,
Uni. of Newcastle,
Australia.
From:  Valentin E. Vulihman <vulih@ipmce.su>
Subject: Attractive drawing on the sphere
Lines: 23
Reply-To: vulih@ipmce.su
Organization: Inst. of Prec. Mech. & Comp. Equip., Moscow, Russia
S P H E R I C A L   D E S I G N I N G
I have made an attractive program on AT-computer  for  drawing
on the sphere and pasting it of paper.  For children,  artists
and education.  I can send an example to alt.source.wanted, on
which  you  can  see  the  rotation of the sphere,  if you are
interested.  Children can  design  tesselations  of  the  many
famous  regular  polyhedra  without  serious difficaltis,  and
print patterns to paste their spherical models.  Moscow,  tel.
280-53-53, after 21 o'clock, or E-mail, Valentin Vulihman.
From:  Valentin E. Vulihman <vulih@ipmce.su>
Subject: Attractive drawing on the sphere
Lines: 2
Reply-To: vulih@ipmce.su
Organization: Inst. of Prec. Mech. & Comp. Equip., Moscow, Russia
subscribe comp.graphics
quit
From: holler@holli.augs1.adsp.sub.org (Jan Holler)
Subject: Re: Newsgroup Split
Reply-To: holli!holler@augs1.adsp.sub.org
Organization: private
Lines: 24
X-NewsSoftware: GRn 1.16f (10.17.92) by Mike Schwartz & Michael B. Smith
In article <NERONE.93Apr20085951@sylvester.cc.utexas.edu> nerone@ccwf.cc.utexas.edu (Michael Nerone) writes:
> In article <1quvdoINN3e7@srvr1.engin.umich.edu>, tdawson@engin.umich.edu (Chris Herringshaw) writes:
>
>   CH> Concerning the proposed newsgroup split, I personally am not in
> Also, it is readily observable that the current spectrum of amiga
> groups is already plagued with mega-crossposting; thus the group-split
> would not, in all likelihood, bring about a more structured
> environment.
Am I glad you write that. I got flamed all along because I begged NOT to
crosspost some nonsense articles.
The problem with crossposting is on the first poster. I am aware that this
posting is a crossposting too, but what else should one do. You never know
where the interested people stay in.
To split up newsgroups brings even more crossposting.
--
Jan Holler, Bern, Switzerland         Good is not good enough, make it better!
holli!holler@augs1.adsp.sub.org      ((Second chance: holler@iamexwi.unibe.ch))
-------------------------------------------------------------------------------
(( fast mail: cbmehq!cbmswi!augs1!holli!holler@cbmvax.commodore.com ))
From: merlin@neuro.usc.edu (merlin)
Subject: Tom Gaskins Pexlib vs Phigs Programming Manuals (O'Reilly)
Organization: University of Southern California, Los Angeles, CA
Lines: 24
NNTP-Posting-Host: neuro.usc.edu
Could someone explain the difference between Tom Gaskins' two books:
o  PEXLIB Programming Manual
o  PHIGS Programming Manual
Why would I want to buy one book vs the other book?  I have an 80386
running SCO UNIX (X11R4) on my desktop, a SUN IV/360 in my lab, and
access to a variety of other systems (Alliant FX/2800, Cray Y/MP) on
the network.  Mostly, we would like to do 3D modeling/visualization
of rat, rabbit, monkey, and human brain structure.
Thanks, AJ
------------------------------------------------------------------------------
Alexander-James Annala
Principal Investigator
Neuroscience Image Analysis Network
HEDCO Neuroscience Building, Fifth Floor
University of Southern California
University Park
Los Angeles, CA 90089-2520
------------------------------------------------------------------------------
From: alex@falcon.demon.co.uk (Alex Kiernan)
Subject: Re: .SCF files, help needed
Distribution: world
Organization: DIS(organised)
Reply-To: alex@falcon.demon.co.uk
X-Newsreader: Simple NEWS 1.90 (ka9q DIS 1.21)
Lines: 14
In article <1993Apr22.123832.23894@daimi.aau.dk> rued@daimi.aau.dk writes:
>RIX's files with the extension  .sci and .scf are just a RAW file with
>a 256 color palette.
>...stuff deleted...
>regards
>Thomas
>
Do you happen to know what a .SCO RIX file is?
--
Alex Kiernan
akiernan@falcon.demon.co.uk
From: kohut1@urz.unibas.ch
Subject: Help ! Miro Crystal or ATI GUP ?
Organization: University of Basel, Switzerland
Lines: 21
I'm planning to buy a new VLB/EISA system with a good graphic performance.
So far I looked at the ATI GUP VLB as my favorite graphics-card. But
recently I heard something about a new card from  Miro. It was the Miro
Crystal 24s with 3 MB and True Color support up to 1024x768. It costs just a
little more than the ATI. So, can't decide which one matches better my needs.
Any technical references and performance comparisons (especially from the
Miro card) would be greatly appreciated.
-Peter-
E-Mail : kohut1@urz.unibas.ch
******************************
**** Universitas Basiliensis *****
****      Switzerland        *****
********************************
From:  Club@spektr.msk.su (Koltovoy Nikolay Alexeevich)
Subject: [NEWS]Re:List or image processing systems?
Distribution: eunet
Reply-To: Club@spektr.msk.su
Organization: Moscow Scientific Industrial Ass. Spectrum
Lines: 137
Moscow Scientific Inductrial Association "Spectrum" offer
VIDEOSCAN vision system for PC/AT,wich include software and set of
controllers.
SOFTWARE
For support VIDEOSCAN family program kit was developed. Kit
includes more then 200 different functions for image processing.
Kit works in the interactive regime, and has include Help for
non professional users.
There are next possibility:
- input frame by any board of VIDEOSCAN family;
- read - white image to - from disk;
- print image on the printer;
- makes arithmetic with 2 frames;
- filter image;
- work with gistogramme;
- edit image.
- include users exe modules.
CONTROLLER VS9
The function of VS-9 controller is to load TV-images into  PC/AT.
VS-9 controller allows one to load a fragment of the TV-frame from
a field of 724x600 pixels.
The clock rate is 14,7 MHz when loading an image with 512 pixel in
the line and 7,4 MHz when loading a 256 pixels image. This
provides the equal pixel size of input image in both horizontal
and vertical directions.
The number of gray levels in any input modes is 256.
Video signal capture time - 2.5s.
CONTROLLER VS52
The purpose of the controller is to enter the TV images into a IBM
PC AT or any other machine of that type. The controller was
created on the base of modern elements, including user
programmable gate arrays.
The controller allows to digitize a input signal with different
resolutions. Its flexible architecture makes possible to change
technical parameters. Instead of TV signal one can process any
other analog signal (including signals from slow-speed scanning
devices).
The controller has the following technical characteristics:
- memory volume - from 256 K to 2 Mb ;
- resolution when working with standard video signal - from 64x64
to 1024x512 pixels ;
- resolution when working in slow input regime - up to 2048x1024
pixels;
- video signal capture time - 40 ms.
- maximum size of a screen when memory volume is 2Mb - 2048x1024
pixels ;
- number of gray level - 256 ;
- clock rate for input - up to 30 MHz ;
- 4 input video multiplexer ;
- input/output lookup table (LUT);
- possibility to realize "scroll" and "zoom";
- 8 lines for external synchronization (an input using external
controlling signal) ;
- electronic adjustment of black and white reference for analog -
digital converter;
- possibility output image to the color RGB monitor.
One can change all listed above functions and parameters of the
controller by reprogramming it.
IMAGE PROCESSOR VS100
Image processor VS100 allows to digitize and process TV
signal in real time. It is possible digitize TV signal with
512*512*8 resolution and realize arithmetic and logic operation
with two images.
Processor was created on the base of modern elements
including user programmable gate arrays and designed as a board
for PC.
Memory volume allows write to the 256 frames with 512*512*8
format. It is possible to accumulate until 16 images.
The processor has the following technical characteristics:
- memory volume to 64 Mb;
- number of the gray level - 256;
- 4 input video multiplexer;
- input/output lookup table;
- electronic adjustment for black and white ADC reference;
- image size from 256*256 to 8192*8192;
- possibility color and black / white output;
- possibility input from slow-scan video sources.
From: bates@spica.ucsb.edu (Andrew M. Bates)
Subject: Renderman Shaders/Discussion?
Organization: University of California, Santa Barbara
Lines: 12
Does anyone know of a site where I could ftp some RenderMan shaders?
Or of a newsgroup which has discussion or information about RenderMan?  I'm
new to the RenderMan (Mac) family, and I'd like to get as much info I can
lay my hands on.  Thanks!
Andy Bates.
---------------------------------------------------------------------------
Andy Bates.
---------------------------------------------------------------------------
From: freemant@dcs.glasgow.ac.uk (Toby Freeman,TJF,G151,3344813,OCT95, )
Subject: Re: CorelDraw BITMAP to SCODAL (2)
Nntp-Posting-Host: borneo
Reply-To: freemant@dcs.glasgow.ac.uk
Organization: Dept. of Computing Science, Glasgow University, Glasgow.
Lines: 52
In article 1r4gmgINN8fm@zephyr.grace.cri.nz, srlnjal@grace.cri.nz () writes:
>
>Yes I am aware CorelDraw exports in SCODAL...
>... but if you try to export in SCODAL with a bitmap
>it will say something like "cannot export...
>...If anyone out there knows a way around this
>I am all ears.
I think one (not ideal) solution is to use the
tracing utility (can't remember the name, sorry!)
included in the Corel Draw s/w pack.  It can convert
bitmaps to Corel art format.  These can then be
imported into a drawing rather than the bitmap.
Result - the file is completely in Corel format and
can be SCODAL'ed no problem!
BUT the slight problem with this, which makes the
solution less than idea, is that the trace utility
spits out many more points than are necessary to
define the shapes being traced.  Straight lines and
curves are both traced as many short segments.
So... the SCODAL taking *much* longer to
image.
The obvious solution is time-consuming - stripping
out the extra points by hand using Corel.
OUCH!
I've done it a few times :-]
>...I was just wondering if there was anything out there
>that just did the bitmap to SCODAL part a tad cheaper.
^^^^^^^^^^^^^^^^
>Jeff Lyall
As I say, if you don't mind the problems, go via the route...
BITMAP -> COREL (VIA TRACE) ->
HAND TRIMMING (USING COREL)!!! ->
COMBINE WITH MAIN COREL PIC (VIA IMPORT) -> SCODAL
Cheers,
Toby
____________________________________._.____._.__________._.__________._.______
____________________________________!  \__/  !__________!_!__________! !______
___!                            !___! . \/ . !___.__.___._.___.___._.! !__.___
___! Toby Freeman               !___! !\  /! !__/ __ \__! !__/ .__!_!. .__!___
___! Glasgow University         !___! !_\/_! !_! !__! !_! !_! <__.___! !______
___! freemant@uk.ac.glasgow.dcs !___! !____! !_! !__! !_! !__\___ \__! !______
___!____________________________!___! !____! !_! !__! !_! !_.____> !_! !__.___
____________________________________!_!____!_!__\____/__!_!_!_____/___\___!___
From: edb9140@tamsun.tamu.edu (E.B.)
Subject: POV problems with tga outputs
Organization: Texas A&M University, College Station, TX
Lines: 9
Distribution: world
NNTP-Posting-Host: tamsun.tamu.edu
I can't fiqure this out.  I have properly compiled pov on a unix machine
running SunOS 4.1.3  The problem is that when I run the sample .pov files and
use the EXACT same parameters when compiling different .tga outputs.  Some
of the .tga's are okay, and other's are unrecognizable by any software.
Help!
ed
edb9140@tamsun.tamu.edu
From: oehler@yar.cs.wisc.edu (Wonko the Sane)
Subject: 48-bit graphics...
Keywords: 48-bit alpha channel IMAGE
Organization: University of Wisconsin, Madison -- Computer Sciences Dept.
Lines: 15
I was recently talking to a possible employer ( mine! :-) ) and he made a reference to a
48-bit graphics computer/image processing system.  I seem to remember it being called IMAGE or
something akin to that.  Anyway, he claimed it had 48-bit color + a 12-bit alpha channel.  That's
60 bits of info--what could that possibly be for?  Specifically the 48-bit color?  That's 280
trillion colors, many more than the human eye can resolve.  Is this an anti-aliasing thing?  Or
is this just some magic number to make it work better with a certain processor.
Also, to settle a bet with my roommate, what are SGI's flagship products?  I know of
Iris, Indigo, and Crimson, but what are the other ones, and which is their top-of-the-line?
(sadly, I have access to none of them.  Just a DEC 5000/25.  Sigh.)
Eric Oehler
oehler@picard.cs.wisc.edu
From: ib@ivan.asd.sgi.com (Ivan Bach)
Subject: Re: Adobe Photo Shop type software for Unix/X/Motif platforms?
Nntp-Posting-Host: ivan.asd.sgi.com
Organization: Silicon Graphics, Inc., Mountain View, CA
Lines: 9
We have been shipping for over one year the Adobe Display PostScript (DPS)
on Silicon Graphics workstations, file servers, and supercomputers.
The Adobe Illustrator 3.5 for Silicon Graphics machines was released
last February.  Adobe and SGI announced last October that Photoshop
will be available on SGI systems in 1993.  Initial release will support
24-bit color graphics.
Ivan Bach, ib@sgi.com
Disclaimer: I do not speak for my employer.
From: danj@welchgate.welch.jhu.edu (Dan Jacobson)
Subject: Re: Is there an FTP achive for USGS terrain data
Organization: Johns Hopkins Univ. Welch Medical Library
Lines: 123
diablo.UUCP!cboesel (Charles Boesel) writes:
>Is there an FTP archive for United States Geological Services (USGS)
>terrain data? If so, where?
Point your gopher client at merlot.welch.jhu.edu
and select the following directories:
-->  13. Search and Retrieve Software/
-->  8.  Search and Retrieve Graphics Software and Data/
And you'll see -
-->  1.  Graphics Online Bibliography (ACM SIGGRAPH)/
2.  Graphics Software and Data Archives (ftp sites)/
3.  Search All Graphics Information <?>
4.  Search Comp.graphics FAQ <?>
5.  Search Graphics Resources (Software and Data) <?>
6.  Search Pictures Utilities FAQ <?>
1.  Graphics Online Bibliography (ACM SIGGRAPH)/
Searches and archives of bibliographic database that covers
graphics literature for over a hundred years (served
by a gopher hole in Austria).
2.  Graphics Software and Data Archives (ftp sites)/
Has links to over 70 sites around the world which
have software and/or data for computer graphics.
This can be used on its own or as a companion to the
searches found in this directory which will point you
toward software and data at various places.
3.  Search All Graphics Information <?>
4.  Search Comp.graphics FAQ <?>
5.  Search Graphics Resources (Software and Data) <?>
6.  Search Pictures Utilities FAQ <?>
These searches contain a wealth of information about
computer graphics, data, software, techniques etc...
3.  Search All Graphics Information <?>
Will simply search all of the information contained
in searches 4, 5, and 6.
4.  Search Comp.graphics FAQ <?>
Lets you search the FAQ (Frequently Asked Questions)
from the Comp.graphics newsgroup compiled by John
Grieggs at the JPL.
5.  Search Graphics Resources (Software and Data) <?>
Lets you search the Grpahics Resource Listing of
software and data provided by Nick Fotis at the
National Technical Univ. of Athens.
6.  Search Pictures Utilities FAQ <?>
Lets you search the FAQ (Frequently Asked Questions)
from the Alt.binaries.pixutils newsgroup compiled by
Jim Howard at Cadence.
Select:
-->  3.  Search All Graphics Information <?>
And search for:
usgs
And you'll find out some information about USGS data availability.
Now select:
-->  2.  Graphics Software and Data Archives (ftp sites)/
and you might find the following interesting:
-->  12. Cartographic data - USGS data (Xerox)/
-->  42. Mapgen/Plotgen and more (USGS)/
-->  68. USGS Weekly Seismicity Reports (including maps - GIF)/
-->  68. USGS Earth Science Data Directory/
(This actually is a database of available data - search
it for terrain - could prove quite useful.)
One other place to look is only available by anonymous ftp at
the moment -
US Geological Survey Maps  -  isdres.er.usgs.gov (130.11.48.2).
If you've never heard of gopher don't worry it's free and on the net,
write me a note if you'd like information on how to get started.
Best of luck,
Dan Jacobson
danj@welchgate.welch.jhu.edu
Johns Hopkins University
From: lansd@dgp.toronto.edu (Robert Lansdale)
Subject: Advice sought: Turning font outlines into renderable polygons
Organization: CSRI, University of Toronto
Distribution: na
Lines: 53
I am seeking some alternate solutions on how to turn a Postscript Type 1 or
TrueType font outline into polygons that can be subsequently scan converted
by a 3D scanline renderer.
I have been studying the problem of font conversion for a few years but
have never had the need to implement such a system. Well, I now have the
opportunity to write some font rendering software so I would like to have
some of my questions answered before I jump into the deep end.
The main problem I face is how to use the even/odd or non-winding rules to
turn the outlines into a single outline polygon (my renderer can handle
complex polygons so there is no need to reduce the polygons to simple
polygons). For example, in the letter "O" there are two outlines:
1) The outside outline which is clockwise (TrueType font)
2) The inside outline which is counterclockwise.
One common solution used by a number of rendering packages is to simply
connect the inner outline to the outer outline at the point where the
two outlines are closest. This is equivalent to descibing a "polygon with
holes". The renderer will then make the appropriate hole since the interior
polygon edges are in the opposite direction to the outside edges.
I do not want to use this simplistic system since:
1) It will not handle all outline fonts properly (it is not a simple
matter to connect the outer outline to the inner outline for
some fancy fonts).
2) It does not properly handle the even/odd or non-winding rules.
From my research over the years the proper solution is to use a trapezoid
decomposition algorithm to scan convert the outlines into trapezoids (as
is done by the Postscript and TrueType font rasterizers). These trapezoidal
polygons can then be easily and properly rendered by the 3D scanline renderer.
My question is: are there any better solutions to turning the outlines into
polgyons other than the trapezoid decomposer? I am not fond of this solution
since it creates excess number of polygons.
Another question, for those in the know: what is the best algorithm to create
bevelled and/or offset curves for font outlines? I have a dozen papers on these
subjects but I can't tell which method is the best to implement.
Thanks for any pointers.
--> Rob Lansdale
--
Robert Lansdale - (416) 978-6619       Dynamic Graphics Project
Internet: lansd@dgp.toronto.edu        Computer Systems Research Institute
UUCP:   ..!uunet!dgp.toronto.edu!lansd University of Toronto
Bitnet:	  lansd@dgp.utoronto           Toronto, Ontario M5S 1A4, CANADA
From: yoo@engr.ucf.edu (Hoi Yoo)
Subject: looking for USA map
Organization: engineering, University of Central Florida, Orlando
Lines: 11
Does anyone out there have or know of,  line drawing USA map?
Thanks very much in advance,
Hoi
yoo@engr.ucf.edu
From: doug@hparc0.aus.hp.com (Doug Parsons)
Subject: 3D2 files - what are they?
Organization: HP Australasian Response Centre (Melbourne)
X-Newsreader: TIN [version 1.1 PL8.5]
Lines: 12
I was chaining around in the anonymous ftp world looking for 3D Studio
meshes and other interesting graphical stuff for the program, and found
a few files with the extension 3D2.  My 3DS v2.01 doesn't know this type
of file, so what are they?
And of course, the perennial... Where are some meshes, fli files, etc.
out there?   I would have thought that someone would have collected a few
and put them somewhere, but alas I am without this knowledge.
mucho appreciato
douginoz.
From: jamie@genesis.MCS.COM (James R Groves)
Subject: FTP for Targa+
Organization: MCSNet Contributor, Chicago, IL
Lines: 5
Distribution: world
NNTP-Posting-Host: localhost.mcs.com
I am looking for software to run on my brand new Targa+ 16/32. If anyone knows
of any sites which have useful stuff, or if you have any yourself you want to
give, let me know via mail. Thanks a LOT! Yayayay!
jamie@ddsw1.mcs.com
From: ernie@woody.apana.org.au (Ernie Elu)
Subject: MGR NAPLPS & GUI BBS Frontends
Organization: Woody - Public Access Linux - Melbourne
Lines: 28
X-Newsreader: TIN [version 1.1 PL9]
Hi all,
I am looking into methods I can use to turn my Linux based BBS into a full color
Graphical BBS that supports PC, Mac, Linux, and Amiga callers.
Originally I was inspired by the NAPLPS graphics standard (a summary of
which hit this group about 2 weeks ago).
Following up on software availability of NAPLPS supporting software I find
that most terminal programs are commercial the only resonable shareware one being
PP3 which runs soley on MSDOS machines leaving Mac and Amiga users to buy full
commercial software if they want to try out the BBS (I know I wouldn't)
Next most interesting possibility is to port MGR to PC, Mac, Amiga. I know there
is an old version of a Mac port on bellcore.com that doesn't work under System 7
But I can't seem to find the source anywhere to see if I can patch it.
Is there a color version of MGR for Linux?
I know there was an alpha version of the libs out last year but I misplaced it.
Does anyone on this group know if MGR as been ported to PC or Amiga ?
I can't seem to send a message to the MGR channel without it bouncing.
Does anyone have any other suggestions for a Linux based GUI BBS ?
Thanks in advan
From: baalke@kelvin.jpl.nasa.gov (Ron Baalke)
Subject: Gaspra Animation (QuickTime)
Keywords: Gaspra, JPL
Organization: Jet Propulsion Laboratory
Lines: 22
NNTP-Posting-Host: kelvin.jpl.nasa.gov
News-Software: VAX/VMS VNEWS 1.41
==============================
GASPRA ANIMATION
March 12, 1993
==============================
The Gaspra animation is now available at the Ames Space Archives in
QuickTime format.  The animation was formed from 11 images taken by the
Galileo spaecraft shortly before its closest approach to the asteroid in
October 1991.  The animation is available using anonymous ftp to:
ftp:      ames.arc.nasa.gov (128.102.18.3)
user:     anonymous
cd:       pub/SPACE/ANIMATION
files:
gaspra.qt
___    _____     ___
/_ /|  /____/ \  /_ /|     Ron Baalke         | baalke@kelvin.jpl.nasa.gov
| | | |  __ \ /| | | |     Jet Propulsion Lab |
___| | | | |__) |/  | | |__   M/S 525-3684 Telos | It's kind of fun to do
/___| | | |  ___/    | |/__ /| Pasadena, CA 91109 | the impossible.
|_____|/  |_|/       |_____|/                     | Walt Disney
From: dr_bobo@ponton.hanse.de (Boris Pruessmann)
Subject: RE: VGA-Scrolling ?
Organization: Ponton European Media Art Lab, Hamburg
Lines: 12
Hi !
If you want to have Soft-Scrolling on your VGA, you have to change some
intern registers of the CRTC. But it is a little bit difficult to explain,
so I would suggest, you take a look at "The Programming of the
EGA/VGA-Adapter" by Addison-Wesley. You will find all useful descriptions
for every available VGA-Register.
-Boris
---
dr_bobo@ponton.hanse.de                 ---> Boris Pruessmann
From: tw2@irz.inf.tu-dresden.de (Thomas Wolf)
Subject: Q: TIFF description
Organization: Dept. of Computer Science, TU Dresden, Germany
Lines: 13
Distribution: world
NNTP-Posting-Host: irz205.inf.tu-dresden.de
Keywords: TIFF
Sorry for wasting your time with a probably simple question, but I'm not
an computer graphic expert. I want to read TIFF-Files with a PASCAL-program.
The problem is, that the files I want to read are in compressed form
( code 1, e.g. Huffman ). All books & articles I found describe only the
plain (uncompressed) format. I don't know where to get the original
TIFF specification, furthermore I haven't any access to a realy complete
library. Can anybody direct me to a good book or (even better) to an
specification available via ftp ?
Thanks in advance - Thomas Wolf
ps: direct mail would be prefered
From: mac@utkvx.bitnet (Richard J. McDougald)
Subject: Re: Why does Illustrator AutoTrace so poorly?
Organization: University of Tennessee
Lines: 22
In article <0010580B.vmcbrt@diablo.UUCP> diablo.UUCP!cboesel (Charles Boesel) writes:
Yeah, Corel Draw and WordPerfect Presentations pretty limited here, too.
Since there's no (not really) such thing as a decent raster to
vector conversion program, this "tracing" technique is about it.  Simple
stuff, like b&w logos, etc. do pretty well, while more complicated stuff
goes haywire.  I suspect (even though I don't write code) that a good
bitmapped to vector conversion program would probably be as big as most
of these application softwares we're using -- but even so, how come one
hasn't been written? (to my knowledge).  I mean, even Hijaak, one of the
commercial industry standards of file conversion, hasn't attempted it yet.
+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
Mac McDougald                   *   Any opinions expressed herein
The Photography Center          *   are not necessarily (actually,
Univ. of Tenn. Knoxville 37996  *   are almost CERTAINLY NOT) those
mac@utkvx.utk.edu               *   of The University of Tennessee.
mac@utkvx.bitnet                *
(615-974-3449)                  *   "Things are more like they are now
(615-974-6435) FAX              *    than they've ever been before."
++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
From: mor@expo.lcs.mit.edu (Ralph Mor)
Subject: Re: Tom Gaskins Pexlib vs Phigs Programming Manuals (O'Reilly)
Organization: X Consortium, MIT Laboratory for Computer Science
Lines: 49
merlin@neuro.usc.edu (merlin) writes:
>Could someone explain the difference between Tom Gaskins' two books:
>  o  PEXLIB Programming Manual
>  o  PHIGS Programming Manual
>Why would I want to buy one book vs the other book?  I have an 80386
>running SCO UNIX (X11R4) on my desktop, a SUN IV/360 in my lab, and
>access to a variety of other systems (Alliant FX/2800, Cray Y/MP) on
>the network.  Mostly, we would like to do 3D modeling/visualization
>of rat, rabbit, monkey, and human brain structure.
Rather than decide which book you want to buy, you need to decide which
programming interface you want to use, then buy the appropriate book.
I wrote an article for the X Resource which discusses the differences
between PHIGS and PEXlib (it will appear in Issue 6 which should be out
pretty soon).  But here's a brief summary...
PHIGS is a graphics API which was designed to be portable to many
devices.  Most implementations support the X Window System and take
advantage of a 3D extension to X called "PEX".  PEXlib is a slightly
"lower" level API which was designed to efficiently support the PEX
extension to X.
Some advantages of using PEXlib...
- Integrates with Xlib,Xt,Motif,etc. better than PHIGS
- Provides immediate mode capabilities
- Is free of "policy"
- PEX supports PHIGS, but is currently being extended to support
features not found in PHIGS (like texture mapping, anti-aliasing).
PEXlib will give you access to all of these features.
Some advantages of using PHIGS...
- Support for multiple devices, not just X based ones
- Support for archiving, metafiles, hardcopy output
- PHIGS has predefined input devices to make input easier
- PHIGS can handle exposure events and resizing for you
- PHIGS can help you with colormap selection/creation.
If you're working strictly in X and don't care about things like
archiving, I would go with PEXlib.  Either way, you will find that
both API's have a lot in common.
Ralph Mor
MIT X Consortium
From: tmc@spartan.ac.BrockU.CA (Tim Ciceran)
Subject: Re: MPEG Location
Organization: Brock University, St. Catharines Ontario
X-Newsreader: TIN [version 1.1 PL9]
Lines: 21
Alan Jackson (ajackson@cch.coventry.ac.uk) wrote:
: Can anyone tell me where to find a MPEG viewer (either DOS or
: Windows).
: Thanks in advance.
: --
: Alan M. Jackson      Mail : ajackson@cch.cov.ac.uk
:      Liverpool Football Club - Simply The Best
:               "You'll Never Walk Alone"
You can find a Windows MPEG viewer at wuarchive.wustl.edu in the
mirrors/msdos/windows3 directory.
--
TMC
(tmc@spartan.ac.BrockU.ca)
From: tmc@spartan.ac.BrockU.CA (Tim Ciceran)
Subject: Re: Newsgroup Split
Organization: Brock University, St. Catharines Ontario
X-Newsreader: TIN [version 1.1 PL9]
Lines: 19
Chris Herringshaw (tdawson@engin.umich.edu) wrote:
: Concerning the proposed newsgroup split, I personally am not in favor of
: doing this.  I learn an awful lot about all aspects of graphics by reading
: this group, from code to hardware to algorithms.  I just think making 5
: different groups out of this is a wate, and will only result in a few posts
: a week per group.  I kind of like the convenience of having one big forum
: for discussing all aspects of graphics.  Anyone else feel this way?
: Just curious.
: Daemon
What he said...
--
TMC
(tmc@spartan.ac.BrockU.ca)
From: johnm@spudge.lonestar.org (John Munsch)
Subject: Re: Rumours about 3DO ???
Organization: /etc/organization
Lines: 16
In article <loT1rAPNBh107h@viamar.UUCP> rutgers!viamar!kmembry writes:
>Read Issue #2 of Wired Magazine.  It has a long article on the "hype" of
>3DO.  I've noticed that every article talks with the designers and how
>"great" it is, but never show any pictures of the output (or at least
>pictures that one can understand)
Gamepro magazine published pictures a few months ago and Computer Chronicles
(a program that is syndicated to public tv stations around the nation) spent
several minutes on it when it was shown at CES.  It was very impressive what
it can do in real time.
John Munsch
P.S.  Don't take that to mean that I believe that the system is going to take
over the world or something.  Just that it clearly has a lot more horsepower
than any of the VIS, CD-I, Sega CD, or Turbo Duo crowd.
From: joshuaf@yang.earlham.edu
Subject: Re: TIFF -> Anything?!
Organization: Earlham College, Richmond, Indiana
Lines: 15
In article <1993Apr23.033843.26854@spartan.ac.BrockU.CA>, tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes:
> There is a program called Graphic Workshop you can FTP from
> wuarchive.  The file is in the msdos/graphics directory and
> is called "grfwk61t.zip."  This program should od everthing
> you need.
>
> --
>
> TMC
> (tmc@spartan.ac.BrockU.ca)
THANKS!  It did work, and it is just what I needed thanks...
Joshuaf
From: noble@possum.den.mmc.com (Joe A Noble)
Subject: Re: Newsgroup Split
Organization: Martin Marietta Astronautics, Denver
Lines: 26
Nntp-Posting-Host: pogo.den.mmc.com
tmc@spartan.ac.BrockU.CA (Tim Ciceran) writes:
>Chris Herringshaw (tdawson@engin.umich.edu) wrote:
>: Concerning the proposed newsgroup split, I personally am not in favor of
>: doing this.  I learn an awful lot about all aspects of graphics by reading
>: this group, from code to hardware to algorithms.  I just think making 5
>: different groups out of this is a wate, and will only result in a few posts
>: a week per group.  I kind of like the convenience of having one big forum
>: for discussing all aspects of graphics.  Anyone else feel this way?
>: Just curious.
>: Daemon
>What he said...
>--
Ditto here too...
>TMC
>(tmc@spartan.ac.BrockU.ca)
--
__/    /       _     __   Joe noble@pogo.den.mmc.com
/_     /      /__ /  /__    /__ /  ... all the beauty of a dying vulture...
_/    ____/  _/   _/  ___/  _/  _/     ...the smile of the truly stupid...
From: csc3phx@vaxa.hofstra.edu
Subject: Loosing color.
Lines: 9
Hi guys.
I am scanning in a color image and it looks fine on the screen.  When I
converted it into PCX,BMP,GIF files so as to get it into MS Windows the colors
got much lighter.  For example the yellows became white.  Any ideas?
thanks
Dan
csc3phx@vaxc.hofstra.edu
From: csc3phx@vaxa.hofstra.edu
Subject: Color problem.
Lines: 8
I am scanning in a color image and it looks fine on the screen.  When I
converted it into PCX,BMP,GIF files so as to get it into MS Windows the colors
got much lighter.  For example the yellows became white.  Any ideas?
thanks
Dan
csc3phx@vaxc.hofstra.edu
From: rah13@cunixb.cc.columbia.edu (Robert A Holak)
Subject: Re: Why does Illustrator AutoTrace so poorly?
Nntp-Posting-Host: cunixb.cc.columbia.edu
Reply-To: rah13@cunixb.cc.columbia.edu (Robert A Holak)
Organization: Columbia University
Lines: 3
A shareware graphics program called Pman has a filter that makes a picture
look like a hand drawing.  This picture could probably be converted into
vector format much easier because it is all lines. (With Corel Trace, etc..)
From: lineber@lonestar.utsa.edu (Jerry M. Lineberry)
Subject: Pov-ray problem / Please Help...
Nntp-Posting-Host: lonestar.utsa.edu
Organization: University of Texas at San Antonio
Lines: 12
Hello,
I've recently had Povray draw about 10 sample files. The problem is that
I accidently erased the command in my povray.def that made the image a targas
file. So now the files are the dump format. How do I fix these files with out
having to re-trace them? By fix I mean, turn them into targas. Thanks in
advance.
-Jerry
--
#################################################################
Jerry M. Lineberry
InterNet : lineber@lonestar.utsa.edu  or  CompuServe : 71221,3015
#################################################################
From: ianf@random.se (Ian Feldman, The Other Internet Worm[tm])
<1omb6fINNm7s@lynx.unm.edu> <a7d56e52@random.se>
Content-Type: setext/plain; charset=ascii_827
Organization: random design -- "Opinions, cheaply"
Lines: 138
Summary: formatted as two 69-line pages (use a monospaced font!)
Subject: SciP+Fi: fiction set in Comp-Science\ programming environs

================ ------------------------------------------------------------
|||||||| SciP+Fi  ction set in C-Sci\programming environs list by Ian Feldman
..........:::::: ---------------------------------------- ---- --------------
Written by:_____ _Book Title_; publisher'year, pp         v2.7           ISBN
-----------       =============================== ------- ==== ##############
John Brunner _Shockwave Rider_; Ray/Ballantine'84 $5_______ 0-345-32431-5
"cracking the net to free information for the common good"
Pat Cadigan _Mindplayers_; ("an absolute must-have" --Bruce Sterling)
Pat Cadigan _Synners_; Bantam $5; (virtual reality)_______ 0-553-28254-9
Orson Scott Card _Lost Boys_; Harper Collins'92; (programmer and family     \
encounters strange events in North Carolina)
Denise Danks _Frame Grabber_; St.Martin's, hrdb [GBP]17____ 0-312-08786-1
computer-illiterate journalix tracks down murderer via BBS
Toni Dwiggins _Interrupt_; ("a techno-mystery set in Silicon Valley")
Michael Frayn _The Tin Men_; Fontana, ("inspired lunacy" but out of print)
David Gerrold _When HARLIE was One Release 2.0_; Bantam'88__ 0-553-26465-6
William Gibson _Count Zero_; (computers as gods, part of a trilogy)
William Gibson _Mona Lisa Overdrive_; (virtual reality)______ 0-553-28174-7
William Gibson _Burning Chrome_; (cyberpunk short stories)___ 0-441-08934-8
William Gibson _Neuromancer_; (industrial espionage)_________ 0-441-56959-5
(author guilty of inventing the cyberpunk genre)
James Hogan _The Genesis Machine_; Del Ray'87 $3__________ 0-345-34756-0
James Hogan _Thrice Upon A Time_; ("time travel for information")
James Hogan _The Two Faces of Tomorrow_; Del Ray'79_______ 0-345-27517-9
ultimate test of AI-OS by letting it run a spacelab -> amok
Stanislaw Lem _His Master's Voice_; (failed attempt to decode ET-message)
Tom Maddox _HALO_ ("remarkable SF of robots & artificial intelligence")
George RR Martin _Nightflyers_; Tor Books'87___________________ 0-8125-4564-8
R A MacAvoy _Tea with the Black Dragon_; ("mystery around a computer   \
fraud situation; computing bits ring true.")
Vonda N McIntyre _Steelcollar Worker_; in Analog Nov'92; (blue-collar VR)
Marge Piercy _Body of Glass_; Penguin'92, 584pp; (data piracy++) review \
finger "books=Body_of_Glass%danny"@orthanc.cs.su.oz.au
---> David Pogue _Hard-Drive_; Diamond'93 $5, 304pp____________ 1-55773-884-X
(*programmer dies in accident, leaves no documentation    \
behind; software firms fight for market share with virii; \
"right out of the pages of MacWorld" --Steve Brock)
Richard Powers _The Gold Bug Variations_; Morrow '91, (famous molecular   \
scientist ponders on the ?why? of love, life in EDP dept.)
Paul Preuss _Human Error_; (nanotech computer infects brain-damaged kid)
Thomas J Ryan _The Adolescence of P1_; ACE'79_______________ 0-671-55970-2
(runaway AI experiment takes over mainframes, wrecks havoc)
Bruce Sterling _The Difference Engine_; (with W Gibson) Bantam'91; finger \
"books=The_Difference_Engine%danny"@orthanc.cs.su.oz.au
Cliff Stoll _The Cuckoo's Egg_; (non-fiction but reads like one); review
FTP <garbo.uwasa.fi>; /mac/tidbits/1991/tb048_18-Mar-91.etx
Tom T Thomas _ME_; ("smart computers")
Vernor Vinge _Across Realtime_; Baen Books_____________ [several titles \
Vernor Vinge _Tatja Grimm's World_; Baen Books__________ soon available \
Vernor Vinge _The Witling_; Baen Books___________________ as Millennium \
Vernor Vinge _Threats and Other Promises_; Baen Books_____ Books in UK]
Vernor Vinge _True Names & Other Dangers_; Baen Books'87___ 0-671-65363-6
Vernor Vinge _A Fire Upon The Deep_; Tor Books, 640p, $6___ 0-8125-1528-5
("essentially about the future of the Internet")
John Varley _Press Enter_; ("Short story, gruesome, but good")
Ed Yourdon _Silent Witness_; ("Computer crime caper story; gumshoe    \
has to explain intricacies of computer OS to girlfriend")
Herbert W Franke _Das Zentrum der Milchstrasse_; ("the center of the galaxy")
Herbert W Franke _Letzte Programmierer_; ("'the last programmer';           \
I do NOT mean Frank Herbert!")
Emil Zopfi _Computer Fuer 1001 Nacht_; Limmat Verlag, Switzerland
Emil Zopfi _Jede Minute Kostet 33 Franken_; (last 4 in German; last 2 \
"set in the commercial computing world of the early 70's")
-----------------------------------------------------------------------------
current version of this list via `finger "scip+fi%danny"@orthanc.cs.su.oz.au'
-----------------------------------------------------------------------------
compiled 930424; % mail -s "additions/ comments/ updates --->" ianf@random.se
================ ============================================= ==============

Statistical breakdown
--------------------------
+-- --------------------- SciP+Fiction -----+------------+------------------+
| # nominations /title    ~~~~~~~~~~~~         /author    # books nominated |
+-- =========== ----------------------------+ =========== ================= +
| 5 _The Adolescence of P-1_; Ryan          |    Vinge 10          6 titles |
| 5 _Neuromancer_; Gibson                   |   Gibson 10          5 titles |
| 4 _True Names and Other Dangers_; Vinge   |     Ryan  5 _The Adolescence..|
| 4 _Shockwave Rider_; Brunner              |  Brunner  4 _Shockwave Rider_ |
| 4 _When H.A.R.L.I.E was One_; Gerrold     |  Gerrold  4 _When H.A.R.L.I.E.|
| 4 _A Fire Upon The Deep_; Vinge           |    Hogan  3          3 titles |
| 2 _Threats and Other Promises_; Vinge     |      Lem  3 _Fiasco_HMV_Solar.|
+-- ----------------------------------------+ ----------- ----------------- +
| # total nominations: 85; authors: 27; female: 5?6; sent in by: 42 readers |
+======== ================ ============ ============ =======================+
Contributions by [unsorted FIFO]:
----------------------------------------
From: sbrock@teal.csn.org (Steve Brock)
From: "John Lacey" <johnl@cs.indiana.edu>
From: malloy@nprdc.navy.mil (Sean Malloy)
From: thom kevin gillespie <thom@silver.ucs.indiana.edu>
From: Paul Christopher Workman <pw0l+@andrew.cmu.edu>
From: kellys@code3.code3.com (Kelly Sorensen)
From: whughes@lonestar.utsa.edu (William W. Hughes)
From: North_TJ@cc.curtin.edu.au (Tim North)
From: LORETI@FNAL.FNAL.GOV (Maurizio Loreti)
From: Stephen Hart <stephenh@cs.mun.ca>
From: Duane F Marble <dmarble@magnus.acs.ohio-state.edu>
From: Matthias Neeracher <neeri@iis.ee.ethz.ch>
From: Wolfram Wagner <ww@mpi-sb.mpg.de>
From: webb@tsavo.HKS.COM (Peter Webb)
From: setzer@ssd.comm.mot.com (Thomas Setzer)
From: kevles@acf3.NYU.EDU (Beth Kevles)
From: dp@world.std.com (Jeff DelPapa)
From: rsquires@cyclops.eece.unm.edu (Roger Squires)
From: hartman@uLogic.com (Richard Hartman)
From: Vernor Vinge <vinge%saturn@sdsu.edu>
From: Paul Lebeau <plebeau@cix.compulink.co.uk>
From: "Lawrence Rounds" <ljr@beach.cis.ufl.edu>
From: phydeaux@cumc.cornell.edu (David Weingart)
From: chgs02@vaxa.strath.ac.uk (By learning+courtesy)
From: Rowan Fairgrove <rowanf@cache.crc.ricoh.com>
From: peterc@suite.sw.oz.au.sw.oz.au (Peter Chubb,x114,6982322,3982735)
From: Gara Pruesse <gara@cs.toronto.edu>
From: russell@alpha3.ersys.edmonton.ab.ca (Russell Schulz)
From: ahm@spatula.rent.com (Andreas Meyer)
From: jon@cs.washington.edu (Jon Jacky)
From: eugene@nas.nasa.gov (Eugene N. Miya)
From: "A.M.MAIR" <CHGS02@VAXB.STRATHCLYDE.AC.UK>
From: mengel@dcdmwm.fnal.gov (Marc Mengel)
From: Roger Scowen <rss@seg.npl.co.uk>
From: kevino@clbooks.com (Kevin Oster -- System Administrator)
From: chavey@cs.wisc.edu (Darrah Chavey)
From: Vonda McIntyre <mcintyre@cpac.washington.edu>
From: Bruce Sterling <bruces@well.sf.ca.us>
From: "Scott Thomas Yabiku" <yabi@midway.uchicago.edu>
From: Thomas Adshead <uad1212@dircon.co.uk>
From: Paul Andrews <76050.161@CompuServe.COM>
===== ======================================= ---------> MUCHO thanks to all!
__Ian "The Other internet Worm[tm]" Feldman <ianf@random.se>
From: scornd7@technet.sg (Tang Chang Thai)
Subject: Re: InterViews graphics package
Nntp-Posting-Host: solomon.technet.sg
X-Newsreader: TIN [version 1.1 PL9]
Lines: 9
Rene S. Dutch student (renes@ecpdsharmony.cern.ch) wrote:
: I'm trying out the C++ graphics package InterViews. Besides the man pages
: on the classes, I haven't got any documentation. Is there anything else
: around? Furthermore, can anyone send me a (small!) example program
: which shows how to use these classes together ? I would be very gratefull...
You might want to try comp.windows.interviews.
From: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
Subject: Re: Fractal compression
Keywords: fractal
Reply-To: jbulf@balsa.Berkeley.EDU (Jeff Bulf)
Organization: Kubota Pacific Computers Inc.
Lines: 12
In article <inu530n.735550992@lindblat.cc.monash.edu.au>, inu530n@lindblat.cc.monash.edu.au (I Rachmat) writes:
|> Hi... can anybody give me book or reference title to give me a start at
|> fractal image compression technique. Helps will be appreciated... thanx
For better worse, the source on this on is Michael Barnsley. His article
in The Science of Fractal Images (Peitgen et al) is a fair-to-middling
intro. Barnsley's book Fractals Everywhere is a more thorough treatment.
The book covers Iterated Function Systems in general, and their application
to image compression is clear from the text.
---
dr memory
jbulf@kpc.com
From: ajs8@kimbark.uchicago.edu (adam jeremy schorr)
Subject: Graphics Needed
Reply-To: ajs8@midway.uchicago.edu
Organization: University of Chicago
Lines: 2
I'm looking for graphics (clipart, bmp, gif...) of anything relating to ophthalmology (I know it's a weird request). Anything such as eyeglasses,
contact lenses, eyes...would be greatly appreciated. Thanks.
From: r0506048@cml3 (Chun-Hung Lin)
Subject: Re: JPEG file format?
Nntp-Posting-Host: cml3.csie.ntu.edu.tw
Reply-To: r0506048@csie.ntu.edu.tw
Organization: Communication & Multimedia Lab, NTU, Taiwan
X-Newsreader: Tin 1.1 PL3
Lines: 20
peterbak@microsoft.com (Peter Bako) writes:
:
: Where could I find a description of the JPG file format?  Specifically
: I need to know where in a JPG file I can find the height and width of
: the image, and perhaps even the number of colors being used.
:
: Any suggestions?
:
: Peter
Try ftp.uu.net, in /graphics/jpeg.
--
--------------------------------
=================================================================
Chun-Hung Lin ( �L�T�� )
r0506048@csie.ntu.edu.tw
Communication & Multimedia Lab.
Dept. of Comp. Sci. & Info. Eng.
National Taiwan University, Taipei, Taiwan, R.O.C.
=================================================================
From: stusoft@hardy.u.washington.edu (Stuart Denman)
Subject: Easy to translate JPEG code...
Article-I.D.: shelley.1rfsqbINNc2p
Organization: University of Washington
Lines: 7
NNTP-Posting-Host: hardy.u.washington.edu
Does anyone out there have any JPEG decompression code in pretty much any
language that I can read and understand?  I have trouble understanding the
JPEG Group's code that I got from an FTP site.  If any one can send me
some good code, I will appreciate it a lot!  Thanks!
Stuart Denman
stusoft@u.washington.edu
From: stusoft@hardy.u.washington.edu (Stuart Denman)
Subject: Re: 3D2 files - what are they?
Article-I.D.: shelley.1rft1nINNc7s
Organization: University of Washington
Lines: 16
NNTP-Posting-Host: hardy.u.washington.edu
doug@hparc0.aus.hp.com (Doug Parsons) writes:
>I was chaining around in the anonymous ftp world looking for 3D Studio
>meshes and other interesting graphical stuff for the program, and found
>a few files with the extension 3D2.  My 3DS v2.01 doesn't know this type
>of file, so what are they?
They are 3D object files for CAD 3D 2.0, a program written by Tom Hudson
for the Atari ST computers.  Don't know much more about them except that
they are stored with the points first, then the surfaces are next, and are
made by listing 3 point numbers that make up the triangle surface. Then
there's a header that describes coloring, lighting, etc.  Don't know much
more than this, hope this helps.
Stuart Denman
stusoft@u.washington.edu
From: eric.vitiello@tfd.coplex.com (Eric Vitiello)
Subject: .GIF to .BMP
Reply-To: eric.vitiello@tfd.coplex.com (Eric Vitiello)
Organization: Ky/In PC User's Group - Louisville, KY - 502-423-8654
Lines: 15
TO: saz@hook.corp.mot.com
SZ>Does anybody know of a program that converts .GIF files to .BMP files
SZ>and if so, where can I ftp it from?  Any help would be greatly
SZ>appreciated.
Sure... A GREAT shareware  program is Graphic Workshop (the newest
version is 6.1).  Although I don't know where you can ftp it from.  It
also converts to about 15 other formats, and does MANY other things.
....r.c V.t.ell. .r...
---
. DeLuxe./386 1.25 #959sa . My Address: eric.vitiello@tfd.coplex.com
From: weilej@cary115.its.rpi.edu (Jason Lee Weiler)
Subject: Re: need a viewer for gl files
Nntp-Posting-Host: cary115.its.rpi.edu
Reply-To: weilej@rpi.edu
Organization: Rensselaer Polytechnic Institute, Troy, NY.
Lines: 17
In article <1qu36i$kh7@dux.dundee.ac.uk>, dwestner@cardhu.mcs.dundee.ac.uk (Dominik Westner) writes:
|> Hi,
|>
|> the subject says it all. Is there a PD viewer for gl files (for X)?
|>
|> Thanks
|>
|>
|> Dominik
|>
Dominik,
Have you tried xgrasp?  It's out there on several ftp sites.(not sure which, but archie can find it, I'm sure.)  It works ok but it lacks an interface.
-Jason Weiler
<weilej@rpi.edu>
From: rych@festival.ed.ac.uk (R Hawkes)
Subject: 3DS: Where did all the texture rules go?
Lines: 21
Hi,
I've noticed that if you only save a model (with all your mapping planes
positioned carefully) to a .3DS file that when you reload it after restarting
3DS, they are given a default position and orientation.  But if you save
to a .PRJ file their positions/orientation are preserved.  Does anyone
know why this information is not stored in the .3DS file?  Nothing is
explicitly said in the manual about saving texture rules in the .PRJ file.
I'd like to be able to read the texture rule information, does anyone have
the format for the .PRJ file?
Is the .CEL file format available from somewhere?
Rych
======================================================================
Rycharde Hawkes				email: rych@festival.ed.ac.uk
Virtual Environment Laboratory
Dept. of Psychology			Tel  : +44 31 650 3426
Univ. of Edinburgh			Fax  : +44 31 667 0150
======================================================================
From: yeoy@a.cs.okstate.edu (YEO YEK CHONG)
Subject: Re: Is "Kermit" available for Windows 3.0/3.1?
Organization: Oklahoma State University
Lines: 7
From article <a4Fm3B1w165w@vicuna.ocunix.on.ca>, by Steve Frampton <frampton@vicuna.ocunix.on.ca>:
> I was wondering, is the "Kermit" package (the actual package, not a
Yes!  In the usual ftp sites.
Yek CHong
Subject: WIN STORM PC
From: srini@shannon.tisl.ukans.edu (Srini Seetharam)
Reply-To: srini@shannon.tisl.ukans.edu (Srini Seetharam)
Distribution: world
Organization: Elec. & Comp. Eng., Univ. of Kansas
Nntp-Posting-Host: erlang.tisl.ukans.edu
Originator: srini@erlang
Lines: 10
Anyone have any info. on the video/sound card from SIGMA designs.
It is called WIN STORM PC.
They also have another card called the legend 24lx
any info would be appreciated, incuding performance, pricing and
availability.
thanks
srini
Subject: Re: Win31 & doublespace
From: edowdy@vax1.umkc.edu
Organization: University of Missouri - Kansas City
NNTP-Posting-Host: vax1.umkc.edu
Lines: 33
In article <4363@hpwala.wal.hp.com>, chrisa@hpwarr.hp.com ( Chris Almy) writes:
>
> 	Doublespace, although I do not trust it for my hard disks, sounds
> 	great for floppies. The thouoght of having to mount the disk
> 	is anoying but something I can deal with. The problem arises
> 	when under windows. Is there a way to mount and unmount while
> 	under windows or is this part of the upgrades soon to be
> 	available from other vendors?
>
>
.Chris
I can't see why you would not trust it because it is safer than any previous
compression programs. It integrates into the kernal and makes it nearly
impossible to delete.
From: phoenix.Princeton.EDU!carlosn (Carlos G. Niederstrasser)
Subject: MS Mouse Driver 8.2
Originator: news@nimaster
Nntp-Posting-Host: aisle.princeton.edu
Organization: Princeton University
Lines: 15
Does anyone have the documentation for the MS Mouse Driver 8.2?  I got it when
I got Windows 3.1, but my Windows manual does not come with the documentation.
In particular I need to know how to turn it off, and how to speed it up
outside windows.  The greater sensitivity is needed so I can play various
games, esp X-wing :)
---
---------------------------------------------------------------------
| Carlos G. Niederstrasser        |  Only two things are infinite,  |
| Princeton Planetary Society     |      the universe and human     |
|                                 |   stupidity, and I'm not sure   |
|                                 |   about the former. - Einstein  |
| carlosn@phoenix.princeton.edu   |---------------------------------|
| space@phoenix.princeton.edu     |    Ad Astra per Ardua Nostra    |
---------------------------------------------------------------------
From: holmes7000@iscsvax.uni.edu
Subject: WIn 3.0 ICON HELP PLEASE!
Organization: University of Northern Iowa
Lines: 10
I have win 3.0 and downloaded several icons and BMP's but I can't figure out
how to change the "wallpaper" or use the icons.  Any help would be appreciated.
Thanx,
-Brando
PS Please E-mail me
Subject: Is SMARTDRV.EXE causing bad sectors on my hd?
From: jdriver@netlink.cts.com (John Driver)
Organization: NetLink Online Communications, San Diego CA
Lines: 47
I am having something very unusual happen.  First
some background on my system.  I have a Mitsubishi 63 meg Hard Drive,
and am running Smartdrv (the version that comes with Windows 3.1) on
it.  I rarely use Windows.  I use a program called Disk Technician
Gold v1.14 to do diagnostics live time on my hard drive.  It works by
having a device driver detect whenever more than one read is
necessary for a file, or if there is anything else is wrong with it,
and minor problems are fully checked out upon rebooting.  My hard
drive is notorious for bad sectors.  I usually end up with 8 new bad
sectors a week.
Here's what happened:  I ran a program, and DTG broke in with
an Emergency Warning and recommended I reboot.  It gave me this
message twice before the program was fully loaded.  I exited the program
and did just this.  DTG went through its bootup process, examining
for new errors etc., and a screen popped up and said something about
sectors for a brief period of time.
I then went back to the program, executed it again, and the
exact same error was detected.  I rebooted and tried again, and the
same error happened again.  So, I removed DTG from memory, and went
to the program to see if I could detect anything wrong.  Sure enough
there was a number of read attempts.  So I rebooted and reloaded DTG,
but removed the cache.  I executed the program.  No read errors,
either audible or detected by DTG.  I quit the program, loaded the
cache, and ran the program again.  The errors were detected.
Ok, so the errors are there, and DTG detects but doesn't fix
them, when the cache is loaded.  When the cache is not loaded there are
no errors.  So, to see if the cache was interfering with any other
files, I went into xtree gold and tagged all files, and searched them
for a random string (in other words, I wanted the program to
completely read every file on my hard drive).  Before I got through
the c's DTG had detected at least six errors and recommended I reboot.
Does anybody, have any idea why Smartdrv is causing misreads on
my hard drive?  Oh, there are exactly two misreads per file, and 1 in
about every 100 files are affected.
I originally posted this message to Disk Technician Corp.'s
system, but I figured someone out in netland may know enough about
smartdrv to help me out.
--
INTERNET:  jdriver@netlink.cts.com (John Driver)
UUCP:   ...!ryptyde!netlink!jdriver
NetLink Online Communications * Public Access in San Diego, CA (619) 453-1115
From: kmembry@viamar.UUCP (Kirk Membry)
Subject: Re: MS-Windows access for the blind?
Reply-To: rutgers!viamar!kmembry
Organization: Private System
Lines: 18
In <1993Apr22.235454.18199@seas.gwu.edu> louray@seas.gwu.edu (Michael Panayiotakis) writes:
>AT the MICRO$OFT display at FOSE, there were a few computers running
>windows, and win. apps for the  blind, I think.  Didn't pay much
>attention to it, but it was there.
It seems that a particular program designed for blind people is more important
than trying to interface windows with a way for blind people to use it.
If someone made a voice recognition/multimedia (sound) oriented program,
it would probably been more effective.  I don't know what the original
purpose of interfacing windows was for the person who posted the question
though.
--
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Kirk Membry                                    "Our Age is the Age of Industry"
rutgers!viamar!kmembry                         - Alexander Rodchenko
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
Organization: University of Central Florida - Computer Services
From: Mark Woodruff <CDA90038@UCF1VM.BITNET>
Subject: Why I'm not using Dos 6 anymore
Lines: 18
I've been running Dos 6 for about a month.  I was generally impressed with
the improvements:  the multiple boot configurations were great, the
new commands were nice, and DoubleSpace worked fine (twice as slow for
large data transfers, twice as fast for small with SmartDrv).
Until now.
This morning at 4 am while I was working on my research paper, I had to
reboot a hung Dos program (that did no disk i/o) from within Windows 3.1.
When my machine finished rebooting, I found my windows directory and about two
thirds of my other directories were irreversibly corrupted.
I cannot afford problems like this.  I'm returning to Dos 5.
mark
P.S.  I've also noticed bad sector errors from DoubleSpace where none should
exist.
Subject: Help with changing Startup logo
From: C..Doelle@p26.f3333.n106.z1.fidonet.org (C. Doelle)
Lines: 23
Hello Brad!
Monday April 26 1993 17:24, Brad Smalling wrote to (crosspost 1) All:
BS> For a VGA card these are the correct files but you can't just copy them
BS> back and expect it to work.  You have to create a new WIN.COM file.  Try
BS> the command (you will have to worry about what directories each file is in
BS> since I don't know your setup):
BS> COPY /B WIN.CNF+VGALOGO.LGO+VGALOGO.RLE WIN.COM
BS> (I grabbed this from _Supercharging Windows_ by Judd Robbins--great book)
BS> This is also how you can put your own logo into the Windows startup
BS> screen. An RLE file is just a specially compressed BMP file.
Brad,
What is the procedure used to 'specially' compress the BMP file?  I would
love to use some of my BMP files I have created as a logo screen.  Thanks
Chris
* Origin: chris.doelle.@f3333.n106.z1.fidonet.org (1:106/3333.26)
From: farley@access.digex.com (Charles U. Farley)
Subject: Where to get ATI card video drivers/fonts?
Organization: Express Access Online Communications USA: 800-546-2010
Lines: 8
Distribution: usa
NNTP-Posting-Host: access.digex.net
Summary: Where to get ATI card video drivers/fonts?
Keywords: ati,windows
Does anyone know where I can ftp or somehow else acquire the latest
video drivers /fonts for an ATI SVGA adapter?  The only floppy I have
is for Windows 3.0.  Does anyone know if ATI is still in business?
Thanks!
--
farley@access.digex.com  <Charles U. Farley>
Average IQ of Calgary Board of Ed. Employee: 65
From: cm@cavsys.demon.co.uk (Colin Manning)
Subject: Truetype OEM font with line drawing characters etc wanted
Distribution: world
Organization: Cavendish Systems
Reply-To: cm@cavsys.demon.co.uk
X-Newsreader: Simple NEWS 1.90 (ka9q DIS 1.21)
Lines: 13
Title says it all: I'm in need of a Truetype OEM character set font - ie
one that contains the line drawing and other characters in the PC
character set similar to those you get when running a text mode application.
If anyone could point me at such a thing, I'd be grateful.
[The only OEM fonts included with Windows are not Truetype.]
Regards,
--
Colin Manning
From: dbstrutt@acs.ucalgary.ca (David Bryan Strutt)
Subject: Re: Help with changing Startup logo
Distribution: usa
Nntp-Posting-Host: acs5.acs.ucalgary.ca
Organization: The University of Calgary, Alberta
Lines: 29
In article <1rgtba$gtn@access.digex.net> farley@access.digex.com (Charles U. Farley) writes:
>
>I know this is probably a FAQ, but...
>
>I installed the s/w for my ATI graphics card, and it bashed my Windows
>logo files.  When I start Windows now, it has the 3.0 logo instead of
>the 3.1 logo.
>
>I thought the files that controlled this were
>
>\WINDOWS\SYSTEM\VGALOGO.RLE
>\WINDOWS\SYSTEM\VGALOGO.LGO
>
>I restored these files, but it didn't change the logo.  Anyone know what
>the correct files are?
I believe you have the correct files. I think what you'll have to
do is go back into Setup and choose change video adapter or
whatever it is called. Then the trick is choose the same adaptor
you currently have. What Setup does is it actually changes the
file WIN.COM whenever you go into it and change the video
hardware selection. It incorporates the contents of VGALOGO.RLE
into WIN.COM when you do this. This trick can also be used to
change the startup logo into whatever you want it to be.
--
[.SIG ALERT]

dbstrutt@acs.ucalgary.ca
[END .SIG ALERT]
From: lipman@oasys.dt.navy.mil (Robert Lipman)
Subject: CALL FOR PRESENTATIONS: Navy SciViz/VR Seminar
Expires: 30 Apr 93 04:00:00 GMT
Reply-To: lipman@oasys.dt.navy.mil (Robert Lipman)
Distribution: usa
Organization: Carderock Division, NSWC, Bethesda, MD
Lines: 66
CALL FOR PRESENTATIONS
NAVY SCIENTIFIC VISUALIZATION AND VIRTUAL REALITY SEMINAR
Tuesday, June 22, 1993
Carderock Division, Naval Surface Warfare Center
(formerly the David Taylor Research Center)
Bethesda, Maryland
SPONSOR: NESS (Navy Engineering Software System) is sponsoring a
one-day Navy Scientific Visualization and Virtual Reality Seminar.
The purpose of the seminar is to present and exchange information for
Navy-related scientific visualization and virtual reality programs,
research, developments, and applications.
PRESENTATIONS: Presentations are solicited on all aspects of
Navy-related scientific visualization and virtual reality.  All
current work, works-in-progress, and proposed work by Navy
organizations will be considered.  Four types of presentations are
available.
1. Regular presentation: 20-30 minutes in length
2. Short presentation: 10 minutes in length
3. Video presentation: a stand-alone videotape (author need not
attend the seminar)
4. Scientific visualization or virtual reality demonstration (BYOH)
Accepted presentations will not be published in any proceedings,
however, viewgraphs and other materials will be reproduced for
seminar attendees.
ABSTRACTS: Authors should submit a one page abstract and/or videotape to:
Robert Lipman
Naval Surface Warfare Center, Carderock Division
Code 2042
Bethesda, Maryland  20084-5000
VOICE (301) 227-3618;  FAX (301) 227-5753
E-MAIL  lipman@oasys.dt.navy.mil
Authors should include the type of presentation, their affiliations,
addresses, telephone and FAX numbers, and addresses.  Multi-author
papers should designate one point of contact.
DEADLINES: The abstact submission deadline is April 30, 1993.
Notification of acceptance will be sent by May 14, 1993.
Materials for reproduction must be received by June 1, 1993.
For further information, contact Robert Lipman at the above address.
PLEASE DISTRIBUTE AS WIDELY AS POSSIBLE, THANKS.
Robert Lipman                     | Internet: lipman@oasys.dt.navy.mil
David Taylor Model Basin - CDNSWC |       or: lip@ocean.dt.navy.mil
Computational Signatures and      | Voicenet: (301) 227-3618
Structures Group, Code 2042    | Factsnet: (301) 227-5753
Bethesda, Maryland  20084-5000    | Phishnet: stockings@long.legs
The sixth sick shiek's sixth sheep's sick.
From: bjorndahl@augustana.ab.ca
Subject: Re: document of .RTF
Organization: Augustana University College, Camrose, Alberta
Lines: 10
In article <1993Mar30.113436.7339@worak.kaist.ac.kr>, tjyu@eve.kaist.ac.kr (Yu TaiJung) writes:
> Does anybody have document of .RTF file or know where I can get it?
>
> Thanks in advance. :)
I got one from Microsoft tech support.
--
Sterling G. Bjorndahl, bjorndahl@Augustana.AB.CA or bjorndahl@camrose.uucp
Augustana University College, Camrose, Alberta, Canada      (403) 679-1100
Subject: re: WINBENCH 3.11 help -- graphics comparison?!?
From: srg3sir@grv.grace.cri.nz
Distribution: world
Organization: Industrial Research Ltd., New Zealand.
NNTP-Posting-Host: rmayston.grace.cri.nz
Lines: 25
In article <C4zoGD.C56@news.udel.edu> swyatt@bach.udel.edu (Stephen L Wyatt) writes:
>I have a question about WINBENCH (pc labs thing) 3.11..
>
>I have a 386/33 and a Ahead B (512k) card and got these results-
>
>windows vga driver - 2.44 million
>ahead B (640-480-256) driver - 455,000 winmarks
>windows svga (800-600-16) driver - 1.68 million winmarks...
>
>I was thinking about upgrading to a diamond 24x card.. I read it had about
>8 million winmark..
>
>obviously this is MUCH MUCH greater... but is this in 256-color mode or what?
>is this a good card...street price is about $170...
On my 386dx 33Mhz 4Mb RAM
Winbench 2.5
24x v2.02 16.7M        1,668,274
v2.03 16.7M        1,668,985
v2.03 16           4,602,428
v2.03 256          7,635,278
Richard Mayston
maystonr@grace.cri.nz
From: rhc52134@uxa.cso.uiuc.edu (Richard)
Subject: Re: does dos6 defragment??
Article-I.D.: news.C51H9M.46p
Organization: University of Illinois at Urbana
Lines: 12
Geoffrey S. Elbo writes:
>Yes, and it is the fastest defrag I've ever watched.  It did a 170MB
>hard disk in 20 minutes.
I found the MS defrag looks very much like Norton Speedisk.
Is it just a strip-down version of the later?
I have both Norton Speedisk and Backup, so I was wondering
if I need to install MS Backup?
Richard
From: downs@helios.nevada.edu (Lamont Downs)
Subject: Re: Windows gripe...
Article-I.D.: helios.downs.189.734061833
Organization: UNLV
Lines: 19
Nntp-Posting-Host: cat.lv-lib.nevada.edu
>     There's one thing about Windows that really frosts me.
>I have 20MB of RAM installed in my system. I use a 5MB (2.5MB
>under Windows) disk-cache, and a 4MB permanent swap file.
>
>     While I can never fill the memory up, I still have problems
>sometimes because I run out of GDI resources. What gives?
>I think Windows could manage these resources a little better.
>
Are you using Windows 3.0 or 3.1? If you're still on 3.0, 3.1 devotes about
twice as much memory to these and runs out much less frequently. If 3.1,
you might use one of the resource monitors (such as the one that comes with
the Windows 3.1 Resource Kit or one of the many shareware ones available)
to see which programs are hogging the resources (every icon, internal
graphics brush, etc. in every program running uses a certain amount of
this limited memory area. Also, some don't give it back when they're
finished).
Lamont Downs
downs@nevada.edu
From: al@col.hp.com (Al DeVilbiss)
Subject: Re: WinBench
Article-I.D.: hp-col.1pqp3rINNg85
Distribution: world
Organization: HP Colorado Springs Division
Lines: 18
NNTP-Posting-Host: reptile4.col.hp.com
jorge@erex.East.Sun.COM (Jorge Lach - Sun BOS Hardware) writes:
> Is there any FTP site that carries WinBench results for different graphics
> cards? In Excel (XLS) format? What is the latest version of WinBench and
> how do they differ? Is the source available, and has anybody try to port it to
> X-Window, at least in a way that will make comparisons possible?
>
On ftp.cica.indiana.edu in pub/pc/win3/misc/winadv.zip is a writeup by
Steve Gibson of InfoWorld with winbench 3.11 and a number of other
benchmark results for nine isa and four VLB video cards.  This is a
very current upload and is likely to have any card you're currently
giving serious consideration.  Not in XLS format.  Latest version of
WinBench that I know of is ver 3.11.  I believe they try to maintain
the same rating scale between versions, and new versions are released
to defeat the lastest coding tricks put in by driver programmers to
beat the benchmarks.  Don't know on the last one.
--
Al DeVilbiss
al@col.hp.com
From: hwrvo@kato.lahabra.chevron.com (W.R. Volz)
Subject: Re: Norton Desktop for Windows 2.2
Organization: Chevron Oil Field Research Company
Lines: 18
In article <1993Apr2.180451.15428@exu.ericsson.se>, ebuwoo@ebu.ericsson.se (James Woo 66515) writes:
|> Hi,
|> I wonder if anyone has had a chance try out Norton Desktop for Windows
|> version 2.2 yet. I understand the upgrade cost from 2.0 to 2.2 is about
|> $20.00 but I have no idea what the new version has.
|>
I got the offer to upgrade this weekend. It's $19 + $8.50 shipping and
handling. The S+H seem way too steep for just a couple of disks. Sounds
like ripoff city. Can this purchased at vendors?
--
======================
Bill Volz
Chevron Petroleum Technology Co.
Earth Model/Interpretation & Analysis Division.
P.O. Box 446, La Habra, CA 90633-0446
Phone: (310) 694-9340 Fax: (310) 694-7063
From: ksl@engin1.NoSubdomain.NoDomain (Kiseok Lee  )
Subject: Re: does dos6 defragment??
Article-I.D.: cs.1993Apr6.040254.8443
Organization: Brown University Center for Fluid Mechanics
Lines: 17
In article <C51H9M.46p@news.cso.uiuc.edu>, rhc52134@uxa.cso.uiuc.edu (Richard) writes:
|> Geoffrey S. Elbo writes:
|>
|> >Yes, and it is the fastest defrag I've ever watched.  It did a 170MB
|> >hard disk in 20 minutes.
|>
|> 	I found the MS defrag looks very much like Norton Speedisk.
|> Is it just a strip-down version of the later?
|>
|> 	I have both Norton Speedisk and Backup, so I was wondering
|> if I need to install MS Backup?
|>
|> Richard
|>
Yes, defragger IS come from Norton.
If you have Norton Utility, don't bother.
From: xtifr@netcom.com (Chris Waters)
Subject: Re: PC/Geos, Windows, OS/2, and Unix/X11
Organization: NETCOM On-line Communication Services (408 241-9760 guest)
Lines: 58
In <sehari.734022369@vincent2.iastate.edu> sehari@iastate.edu (Babak Sehari) writes:
>---
>With my limited knowladge about the PC Geos, I came out with following
>comparison:
>                 PC Geos      Windows       OS/2    Unix/X11
>                ________      _______       ____    _______
>2. can run win
>   programs        nop           yap         yap     nop
^
Novell is at least
demoing windows apps
running under UNIXWare.
>5. can run unix    nop        I have not     nop     yap
>                              heard of it
^           ^
Try MKS.     MKS &
others, esp.
EMX
Note here: the MKS toolkit (for DOS/Windows & OS/2) gives you a good
suite of standard UNIX utilities.  There are other similar systems from
other vendors as well.  The EMX system for OS/2 gives you most of the
standard UNIX system calls for recompiling your UNIX programs under
OS/2.  Not quite the same thing as actually running UNIX programs
directly in either case, but EMX makes OS/2 almost as compatible with
UNIX systems as many UNIX systems are with each other.  And, best of
all, EMX is free.  :-)
There is a similar system (GO32) for DOS, but it doesn't work with
Windows, as far as I know.
>7. price          $120          $70         $120     free-$1000s
>                                                     A good one
>                                                     costs $400-$700
>                                                     avaliable on Ext.
>                                                     card too.
Should add in the cost for DOS with both Geos and Windows, neither of
which is a standalone OS at this point.  Neither OS/2 nor UNIX requires
DOS.
BTW, two of the best unices I've seen for the pee cee are UNIXWare ($300
for the personal edition) and LINUX (free).  So I don't agree that "a
good one costs $400-$700."  :-)
And, if you really want to check out the various options available to
you, you should also look into DESQview and DESQview/X.
cheers
--
Chris Waters    | the insane don't |"Judy's in the bedroom,
xtifr@netcom.COM| need disclaimers | Inventing situations."  -D. Byrne
From: holland@ug.cs.dal.ca (Shane A Holland)
Subject: Comments on Xtree for Windows ????
Organization: Math, Stats & CS, Dalhousie University, Halifax, NS, Canada
Lines: 15
Nntp-Posting-Host: ug.cs.dal.ca
I am looking for comments on Xtree (Pro ??) for Windows.  I am
thinking of buying the product but I have not even seen it yet.
Thank you...
Shane Holland
holland@ug.cs.dal.ca
--
-----------------------------------------------------------------------
holland@ug.cs.dal.ca maurack@ac.dal.ca
From: neff123@garnet.berkeley.edu (Stephen Kearney)
Subject: Re: Is Microsoft Windows really and Ope
Article-I.D.: agate.1pr6r2$t7c
Organization: University of California, Berkeley
Lines: 9
NNTP-Posting-Host: garnet.berkeley.edu
>ALL icons in Program Manager are aliases. Is that explicit
>enough??
Apparently not. Many people complain about the confusion that
results from the filemanager/progman split. It's just a basic
flaw.
Besides, what about the control panel icons? Where are all those
little files?
From: neff123@garnet.berkeley.edu (Stephen Kearney)
Subject: Re: Is Microsoft Windows really and Operating system?
Article-I.D.: agate.1pr6rm$t7f
Organization: University of California, Berkeley
Lines: 19
NNTP-Posting-Host: garnet.berkeley.edu
>Well, you may think that, but you are wrong.
Ah... The joys of networking. I just hope that you forgot the :->
>If you don't like the file manager, DON'T use it!
I don't. I use NDW.
>I like the more modular nature of Windoze.
If you like things to be modular, I think you would love System 7.
Instead of adding a line to your autoexec.bat, you just drop the
icon into the extensions folder.
>Just because one has had ignorance sold to one by the evil
>fruit empire, one is not forbidden to learn about one's file
>system below the level of the GUI.
I'm still working on that one :-/
From: moor9881@mach1.wlu.ca (Dwayne Moore u)
Subject: SOUND BLASTER ver 1.5 UNDER WINDOWS 3.1
X-Newsreader: TIN [version 1.1 PL6]
Organization: Wilfrid Laurier University
Lines: 35
[ Article crossposted from comp.speech,comp.sys.ibm.pc.soundcard,comp.os.linux ]
[ Author was MARIO LAURETTI ]
[ Posted on Mon, 5 Apr 1993 21:44:24 GMT ]
I Have a Sound Blaster ver 1.5
When I try to install driver ver 1.5 (driver that comes with window 3.1)
It tell me to upgrade my card first!!!????
Now, I have found new drivers from Creative labs.
But I have problems installing it:
After removing the vsbd.386 (old version that come in windows)
After installing Creative Sound Blaster - MIDI Synthesizer
I try to install Creative Sound Blaster 1.5 Wave...
But when I am in the menu: Add Unlisted or Updated Driver
and double click on this driver, I have this error:
--------------------------Driver Error---------------------------
Cannot load Creative Sound Blaster 1.5 Wave and MIDI driver. The driver file
may be missing. Try installing the driver again, or contact your system
administrator.
Yes, yes, yes, I have read the README.1st and try every thing!
can somebody help me??
Mario Laureti
internet: laurm00@tohi.dmi.usherb.ca
From: tedm@tsoft.net (Ted Matsumura)
Subject: Re: Windows gripe...
Organization: TSoft BBS and Public Access Unix, +1 415 969 8238
Lines: 37
In article <1ppmvf$qnh@bigboote.WPI.EDU> bigal@wpi.WPI.EDU (Nathan Charles Crowell) writes:
>
>Hi there,
>
>     There's one thing about Windows that really frosts me.
>I have 20MB of RAM installed in my system. I use a 5MB (2.5MB
>under Windows) disk-cache, and a 4MB permanent swap file.
>
>     While I can never fill the memory up, I still have problems
>sometimes because I run out of GDI resources. What gives?
>I think Windows could manage these resources a little better.
>
>     Does anyone have any input on how to conserve these resources
>so that I can avoid this problem?
>
>Nate
>--------------------------
>Nathan C. Crowell, Dept. of Mechanical Engineering/ACRL
>
>Worcester Polytechnic Institute     E-mail: bigal@wpi.wpi.edu
>
>"Costing the net hundreds if not thousands of dollars"
Nathan,
Win31 has a fixed limit of 64K GDI memory, regardless of physical RAM
installed, this is twice that of Win30, but not nearly robust enough for
many developers and power users.
Using Amish Launch as your shell, you can reduce GDI memory usage by as
much as 15% over Progman, NDW 2, DAshboard, and other graphical type icon
based and other shells.  Also, nesting, and full hot-key global support
is offered, something no other shells have at this time.
Ted Matsumura, President
Amish Software, Inc.
:wq
From: davidgl@microsoft.com (David Glenn)
Subject: Re: ATM or Truetype-which to choose?
Article-I.D.: microsof.1993Apr06.023730.5094
Distribution: usa
Organization: Microsoft Corp.
Lines: 54
In article <C4tDGt.Mqq@csn.org> rjn@teal.csn.org wrote:
> csd25@keele.ac.uk (C.M. Yearsley) writes:
>
> : I've just bought a PC which came with a bundle of Lotus stuff, including
> : Adobe Type Manager version 1.15. As a newcomer to Windows, I'm
> : confused about which I should be using, ATM or Truetype.
>
> If you are going to stay with ATM, be sure to upgrade to 2.5, which
> replaces 2.0. Who knows how old 1.15 is.  2.5 is as fast as TT, and if
> you disable the small screen fonts, ATM does better screen rendering at
> the smaller point sizes.
Not true! Both Type 1 and TT fonts can be of excellent quality and poor quality
at any size. It all depends on the font's maker and the complexity of the glyphs
related to the size and resolution at which they are viewed. Probably the reason
for your opinion/experience that TT is inferior is because most TT fonts on the
market today have been converted from Type 1 outlines to TT either by the font
vendor or end-users using Fontographer or FontMonger instead of the TT fonts being
hand-hinted to take advantage of the TT hinting language. At best these converted
TT fonts will be on a par with the Type 1 font of its orgin.
TrueType is a much richer and more robust hinting language than Type 1 (the hinting
of diagonals for instance, which TT does and Type 1 cannot). If you check out the
Windows 3.1 core fonts (Times, Arial, Courier, Symbol, Wingdings) you'll see what can
be done with TT. There are other fonts out there that have been hand-hinted and not
just converted. Some of the Microsoft TT Font Pack 2 fonts are hinted very well.
> You can use both TT and ATM fonts at the same time, if you like.
> ATM (Type 1) fonts tend to be of higher quality
> and be more complete in terms of foreign characters.
Again, not true. The characters in a TT or Type 1 font depend on the maker. If someone
converts a Type 1 font to TT they'll only get the characters in the font of orgin. TT
allows for much more flexibility in this area as well. You can have thousands of glyphs
in a TT font file (Mac/PS/Windows/Unicode char set) and use the characters appropriate
for the particular platform you are running the font on. For instance, all or our fontpack
2 TT fonts have the Mac/Windows char set in them. The metrics of the fonts are such that
if the font is brought over to the mac the user will have access to the full mac char set.
> Regards,                                            1001-A East Harmony Road
> Bob Niland                                          Suite 503
> Internet:  rjn@csn.org                              Fort Collins CO 80525
> CompuServe: 71044,2124                              (303) 223-5209
Hope this clears up some of the confusion. Feel free to contact me if anyone would like
more info.
Regards,
Dave Glenn
Program Manager, Microsoft TT font stuff
davidgl@microsoft.com
compuserve: 72420,1067
From: ardie@ux1.cso.uiuc.edu (Ardie Mack)
Subject: Re: does dos6 defragment??
Article-I.D.: ux1.ardie.272.734097933
Organization: Department of Plant Pathology
Lines: 30
In article <1993Apr6.040254.8443@cs.brown.edu> ksl@engin1.NoSubdomain.NoDomain (Kiseok Lee  ) writes:
>From: ksl@engin1.NoSubdomain.NoDomain (Kiseok Lee  )
>Subject: Re: does dos6 defragment??
>Date: Tue, 6 Apr 1993 04:02:54 GMT
>In article <C51H9M.46p@news.cso.uiuc.edu>, rhc52134@uxa.cso.uiuc.edu (Richard) writes:
>|> Geoffrey S. Elbo writes:
>|>
>|> >Yes, and it is the fastest defrag I've ever watched.  It did a 170MB
>|> >hard disk in 20 minutes.
>|>
>|> 	I found the MS defrag looks very much like Norton Speedisk.
>|> Is it just a strip-down version of the later?
>|>
>|> 	I have both Norton Speedisk and Backup, so I was wondering
>|> if I need to install MS Backup?
>|>
>|> Richard
>|>
>
>Yes, defragger IS come from Norton.
>If you have Norton Utility, don't bother.
Don't bother if you have CPBackup or Fastback.  They all offer options
not available in the stripped-down MS version (FROM CPS!).  Examples - no
proprietary format (to save space), probably no direct DMA access, and no
tape drive!
You NEED MS Defrag if you use doublespace to work on the compressed
volume.
From: rcampbel@weejordy.physics.mun.ca (Roderick Campbell)
Subject: Re: PC/Geos, Windows, OS/2, and Unix/X11
Reply-To: rcampbel@weejordy.physics.mun.ca
Organization: Dept. of Physics, Memorial University
Lines: 61
In article <sehari.734022369@vincent2.iastate.edu>, sehari@iastate.edu (Babak Sehari) writes:
|> ---
|>
|>
|>
|> With my limited knowladge about the PC Geos, I came out with following
|> comparison:
|>
|>                  PC Geos      Windows       OS/2    Unix/X11
|>                 ________      _______       ____    _______
|>
|> 1. Can run dos
|>    programs        yes           yes         yes     yes(needed add.)
|>
[lines deleted]
|>
|> 7. price          $120          $70         $120     free-$1000s
|>                                                      A good one
|>                                                      costs $400-$700
|>                                                      avaliable on Ext.
|>                                                      card too.
|>
|> 8. C compiler Don't think so    yap          yap     yap
|>
|> 9. C++           no             Yap          Yap     Yap
|>
|> 10. Fortran      no             yap          yap     yap
|>
|> 11. debuger      ?              yap           yap    yap
|>
|> 12. min to run   dos        2M & 10Mb-Hard     ?     386
|>
|> You guys and gals add to this list, so we do not throw our many down the
|> tubes.
|>
|>                       With highest regards,
|>                            Babak   Sehari.
|>
This list appears to imply, that MS-windows that has a cost listed
above at $70, comes with a C compiler, C++ and Fortran. It does not, of
course. These are expensive add-ons that drive the price WAY beyond $70.
( I don't know if the same applies to OS/2 )
As far as unix is concerned;
There is a free unix, linux, that has cc, ~c++, fortran ( f2c ),
Xwindows and many other features besides, with a large number of utilities
that can be optionally added. And there is also a free 386BSD I believe.
Both these unix's are quite robust. You can check out comp.os.linux
If you don't want to "throw our many down the tubes", you've got to break
that list down a little more.
--
Roderick Campbell
Department of Physics
Memorial University of Newfoundland
St. John's, NF, CANADA
internet: rcampbel@weejordy.physics.mun.ca
From: mpalmer@encore.com (Mike Palmer)
Subject: Re: Windows On A RAMDRIVE??? Help...
Organization: Encore Computer Corporation
Nntp-Posting-Host: sysgem1.encore.com
Lines: 31
f_langleyrh@ccsvax.sfasu.edu writes:
>[...] Stuff del'd for bandwidth's sake.
>Why?  *sigh*  If you don't have more than 16MBs of memory using a RAMDrive
>with windows is a _waste_ of memory.  Windows will access upto 16MB RAM better
>as memory.  As to why what you did didn't work, it is because driveletters
>and paths are stored inside the group/pif/ini files.  All of the sudden things
>went from drive c: to drive e:!  However, if you wanted to copy an application
>up to the RAMDrive and re-setup it up, that should work normally, but as
>previously stated, this will only hurt things unless you've got more than 16MBs
>of RAM and are using whats above 16 as the RAMDrive.
>I personally have 20MB's of RAM and run a ~4MB RAMDrive with a great deal of
>success.  However, if you are looking to speed up windows, the three things
>I've noted that work the best are:
>	1) A graphics accellerator card
>	2) A co-processor (Even an emulator helps!)
>	3) Some other disk-cache besides Smartdrive (I've tried several,
>	   and Lightning for Windows and Norton Cache give me major
>	   headaches as well.).
I think the purpose the original poster was trying to serve is to avoid the
SIGNIFICANT amount of disk access that Windows does on startup.  It's like
it's trying to it's bit in wearing the damn drive out.  I estimate it's only
reading a Mb of programs & data, but from the performance the drive gives, it
sounds like they are scattered all over the drive (my drive is however
regularily compressed).  What is it that takes so much fuss.  Perhaps if MS
would take the trouble to optimize this startup process, less people would
be wanting to find a solution themselves.
From: cgd@eden.CS.Berkeley.EDU (Chris G. Demetriou)
Subject: Re: PC/Geos, Windows, OS/2, and Unix/X11
Organization: Kernel Hackers 'r' Us
Lines: 22
NNTP-Posting-Host: eden.cs.berkeley.edu
In-reply-to: rcampbel@weejordy.physics.mun.ca's message of Tue, 6 Apr 1993 11:41:36 GMT
In article <C528HE.I1q@news.ucs.mun.ca> rcampbel@weejordy.physics.mun.ca (Roderick Campbell) writes:
=>There is a free unix, linux, that has cc, ~c++, fortran ( f2c ),
=>Xwindows and many other features besides, with a large number of utilities
=>that can be optionally added. And there is also a free 386BSD I believe.
=>Both these unix's are quite robust. You can check out comp.os.linux
i dunno about linux, but for 386bsd, don't forget networking
(well tested, at that), NFS, a fast, incredibly stable filesystem,
and the list goes on...  8-)
for us 386bsd folk, look in comp.os.386bsd.*.
chris
moderator of comp.os.386bsd.announce, anti-politician, and sometime evangelist
--
Chris G. Demetriou                                    cgd@cs.berkeley.edu
"386bsd as depth first search: whenever you go to fix something you
find that 3 more things are actually broken." -- Adam Glass
From: adriene_nazaretian@qm.yale.edu (Adriene Nazaretian)
Subject: Re: win nt
Nntp-Posting-Host: gorgon.cis.yale.edu
Organization: Yale University; New Haven, Connecticut   USA
Lines: 22
In article <1pq66v$kkt@gazette.bcm.tmc.edu>, raymaker@bcm.tmc.edu (Mark Raymaker) says:
>
>Is anyone aware of existing ipx/netx software for WindowsNT or
>is attachment to Netware a FUTURE release?
>please respond to internet mail: raymaker@bcm.tmc.edu
>thanks
>
I believe the beta version of the service is available via ftp on
ftp.cica.indiana.edu
in pub/pc/win3/nt called something like nwnt.zip
There is an INDEX ascii file there, which lists the programs in that directory
and what they do.
unfortunately this beta will also disable netbeui and tcp/ip over your
primary nic, so if you really want to run it, get yourself an extra nic and
bind it to that.
Otherwise wait for next release, like I am.
Adriene
From: ac151@Freenet.carleton.ca (David Clarke)
Subject: DOS 6 / EMM386 / Windows 3.1 PROB
Reply-To: ac151@Freenet.carleton.ca (David Clarke)
Organization: The National Capital Freenet
Lines: 22
Has anyone else experienced problems with windows hanging
after the installation of DOS 6?  I have narrowed the
problem down to EMM386.
If if remove (or disable) EMM386, windows is ok.  If EMM386
is active, with NOEMS, windows hangs.  If I use AUTO with
EMM386, the system hangs on bootup.
Dave.
--
-------------------------------------------------------------------
David Clarke   ...the well is deep...wish me well...
ac151@Freenet.carleton.ca  David_Clarke@mtsa.ubc.ca  clarkec@sfu.ca
-------------------------------------------------------------------
From: daa7365@tamuts.tamu.edu (Diego A. Aranda)
Subject: Windows Shareware Monthly (INFORMATION)
Article-I.D.: tamsun.1ps35rINNfpd
Organization: Texas A&M University, College Station
Lines: 100
NNTP-Posting-Host: tamuts.tamu.edu
Windows Shareware Monthly (WSM) is an on-line forum for information about the
newest and best Windows 3.x and NT shareware/freeware software.
WSM is a compilation of submissions from shareware/freeware authors in a single
Windows .HLP (Help System) file.  All types of software may be submitted for
entry in WSM - utilities, applications, games, programming tools, etc.
WSM benefits Windows shareware/freeware authors by allowing them to publicize
their software releases, inform users of updated versions, and to increase
their installed base of users.  Those searching for specific Windows software
will benefit by having a complete list of available software available at their
fingertips - complete with feature lists, current prices, and any other
relevant information.
Windows software authors may submit entries to Windows Shareware Monthly in the
following manner:
1. Compose a short summary of the function of the software.  Include all
special features which are unique to your product and which set it apart
from other programs in the genre.  Be sure to include specific details
such as: the current release version, where the software is available,
how much the registration fee costs, how much disk space is required, any
special requirements (e.g. sound card, or VBRUN200.DLL, etc.), how the
author may be contacted, etc.  Because text is highly compressible, the
summary may be as long as is necessary, however, it is best to keep it
short.  A good guideline is a single screenful of 12-point text at 640x480
resolution.  Order forms and other such addendum may be included if desired.
All submissions whould be in plain text (ASCII) format.  Formatting will
be exactly as it is submitted - I will simply cut and paste text files
into a Help Authoring system.  If you require special formatting
conventions - such as boldface text or italics, or a larger font size,
indicate so CLEARLY within the text file.  For best results, use Windows
NotePad to create the .TXT file.
2. Include up to 100k of Windows-format .BMP (bitmap) screen-shots which
display the workings or special features of each program.  Special cases
(rendering applications for example) which require 256-color bitmaps may
submit up to 250k of .BMP files - all other should observe the 100k limit
and use 16-color format.  For maximum compatiblity with the software which
will be used to create the WSM .HLP file (Stefan Olson's Help Writer's
Assistant for Windows), please save the bitmaps with Windows Paintbrush or
WinGIF.
3. Include a 16-color .BMP of the program's icon (.ICO file).  Many programs
are available to convert .ICO to .BMP format, or Windows Paintbrush may be
used.  The .BMP will be embedded in the summary text.
4. Double-check for spelling errors, formatting corrections, etc.
5. Compress the .TXT file, the .BMP of the program icon, and any additional
.BMPs into a single file using PKZIP (any version).
6. Submit the entry by UUENCODING the .ZIPfile, and e-mailing it to:
DAA7365@TAMUTS.TAMU.EDU
if submitting via the Internet or Compuserve. If submitting via America
Online, send a brief message indicating submission, and append the .ZIP
file, then e-mail to:
DiegoAA
7. If any changes are required, or a new version is released, complete
the above procedures again.  Send all submissions to the @TAMUTS address,
and any comments, suggestions, criticisms, to DAA7365@RIGEL.TAMU.EDU.
All entries received before the deadline will be included in the subsequent
edition of WSM.  The editor will not be held responsible for any errors, and
we reserve the right to make changes to the entries.
WSM is not limited to shareware/freeware software.  A special area will be
devoted to commercially available Windows 3.x and NT software.  Commercial
software authors should follow the same steps above, with the exception of
the limitations on size - the .TXT file and .BMPs may be as large as required
(and as large as is practical for transmission over phone lines).  There
is no charge for the publishing of either shareware/freeware or commercial
product entries.
Advertisements for computer hardware, software, bulletin boards, etc. may
be submitted as well. Again, the same procedures apply, with the exception of
the size limitations.  There is no charge for advertising space.  The first
ten advertisements submitted each month will be included; subsequent
submissions will not be included due to size constraints.
WSM is currently looking for persons willing to devote the time to author
columns within WSM.  A C/C++ programing section, a Visual Basic section, and
two Windows-specific opinion/advice columns are envisioned.  All work will
be on a voluntary basis.  If you wish to aid WSM and author a monthly column
on one of the above topics, please send us mail at DAA7365@TAMUTS.TAMU.EDU or
DiegoAA on America Online.
The first edition of WSM will be distributed May 1st via America Online,
Compuserve, and the Internet.  The deadline for submissions is April 28th.
The first edition filename will be WSM-1.ZIP, with each subsequent monthly
release continuing in the series naming convention (WSM-2.ZIP, etc.).  Each
edition will be released on the first of each month, and the deadline for
submission will be at least three days before release.
From: bkph@kauai.ai.mit.edu (Berthold K.P. Horn)
Subject: Re: ATM or Truetype-which to choose?
Organization: MIT Artificial Intelligence Lab
Lines: 50
Distribution: usa
NNTP-Posting-Host: kauai.ai.mit.edu
In-reply-to: davidgl@microsoft.com's message of 06 Apr 93 02:37:30 GMT
`In article <1993Apr06.023730.5094@microsoft.com> davidgl@microsoft.com (David Glenn) writes:
...
Again, not true. The characters in a TT or Type 1 font depend on the
maker. If someone converts a Type 1 font to TT they'll only get the
characters in the font of orgin. TT allows for much more flexibility
in this area as well. You can have thousands of glyphs in a TT font
file (Mac/PS/Windows/Unicode char set) and use the characters
appropriate for the particular platform you are running the font on.
Well, yes, both Type 1 and TrueType fonts can contain lots of characters.
And in both cases plain text fonts will be reencoded to Windows ANSI
in Windows, and to Mac standard roman encoding on the Mac.
No difference there between T1 and TT!
And as for fonts with thousands of glyphs, right know these are a liabiliaty
rather than a great new thing.  Reason is that a font with 3000 characters
is very large, and if you can only access 224 of them you are paying a heavy
price in downloading time and printer storage.  (And at the moment there
is only one program of that uses `partial font downloading')
For instance, all or our fontpack 2 TT fonts have the Mac/Windows
char set in them. The metrics of the fonts are such that if the font
is brought over to the mac the user will have access to the full mac
char set.
Yes and T1 text fonts all have the `ISO Adobe' character set, which is
a superset of Windows ANSI and Macintosh standard roman enocding.
The question is whether you can get at the glyphs.  In Windows, for example,
you cannot get at the ligatures `fi' anfd `fl' (both T1 and TT)even though a
font may very well have them.
ANd, while it is somewhat painful to reencode a Type 1 font and to create a
new Windows metric file (PFM) for it, there are utilities out there to allow
you do this.  How do I reencode a TrueType font?  How can I get at the
`fi' and `fl' ligatures in Windows (or on the Mac)?  Are there utilities
that make it possible to circumvent the hard-wired Windows ANSI encoding?
> Regards,                                            1001-A East Harmony Road
> Bob Niland                                          Suite 503
> Internet:  rjn@csn.org                              Fort Collins CO 80525
> CompuServe: 71044,2124                              (303) 223-5209
Berthold K.P. Horn
Cambridge, Massachusetts, USA
From: htanabe@ponder.csci.unt.edu (Tanabe)
Subject: terminal software
Article-I.D.: ponder.htanabe.734110579
Organization: University of North Texas
Lines: 10
Please reply via EMail...
When I use the terminal software for Windows such as TERMINAL.EXE or
Crossttalk, it doesn't use the whole window.  I mean, when the software's
window size is max, it still scrolls around the 2/3 of window.  It does not
use whole window.  I set "stty rows 30", but still the same. Scrolls at 2/3
from the top of the windows.  Could anyone tell me how to setup these software
to use whole window?
Thanks in advance.
From: taylor@mail  (Tim Taylor)
Subject: Re: PKUNZIP2.04g
Nntp-Software: PC/TCP NNTP
Lines: 12
Organization: Loral Data Systems
In article <1pn6tr$l70@dekalb.DC.PeachNet.EDU> kenneth@dekalb.DC.PeachNet.EDU (Kenneth Palmertree) writes:
Hey,
Does anyone know of an ftp site where I can get pkunzip2.04g from.
I tried using archie with no such luck.  This version of pkunzip is suppose
to correct some promblems when using pkunzip within windows.  Thanks in
advance!  :-)
you can get pk.... from ftp.cica.indiana.edu
From: gloege@Informatik.TU-Muenchen.DE (Andreas Gloege)
Subject: OTTOMENU ... Where Can I Get it ?
Originator: gloege@hphalle0a.informatik.tu-muenchen.de
Organization: Technische Universitaet Muenchen, Germany
Lines: 22
I've heard about Ottomenu which should be a good desktop
on Windows 3.0/3.1 .
Can anybody tell me where I can get it ?
It should be on CICA in /pub/pc/win3/util but it is not.
It is also not an WUSTL,SIMTEL and a great number of other
sites.
Just post it or mail me.
------------------------------------------------------------------------
Andreas Gloege
Kazmaierstr.48 (bei Klarmann)
8000 Muenchen 2
089/508336
email : gloege@Informatik.TU-Muenchen.DE
------------------------------------------------------------------------
From: mau@herky.cs.uiowa.edu (Mau Napoleon)
Subject: RFD: comp.databases.access
Organization: UUNET Communications
Lines: 25
NNTP-Posting-Host: rodan.uu.net
Oganization: uiowa.edu
This is an official RFD for the creation of a new newsgroup for the
general discussion of the Microsoft Access RDMS.
NAME: COMP.DATABASES.ACCESS
MODERATION: UNMODERATED. At this time, no need for a moderator has been
assertained. Future evaluation will determine if one is needed.
PURPOSE:
Access is a new RDBMS for the Windows Operating System. It includes WYSIWYG
design tools for easy creation of tables, reports, forms and queries and a
database programming language called Access Basic.
THe purpose of the group will be to provide help to people who use Access's
WYSIWYG design tools to create simple databases as well as to people who use
Access Basic to create complex databases.
RATIONALE:
Eventhough Access is a new RDBMS, it is very popular because of its Graphical
Development enviroment and its initial low price.
Been a version 1.0 product means that all Access users are Novices.
For that reason a newsgroup is needed where Access users can discuss
their experiences with the product and answer each other's questions.
--
Napoleon
mau@herky.cs.uiowa.edu
From: rick@sundance.SJSU.EDU (Richard Warner)
Subject: Re: ATM or Truetype-which to choose? (TT for True-Effects for windows)
Organization: San Jose State University - Math/CS Dept.
Lines: 41
games@max.u.washington.edu writes:
>In article <1993Apr3.174759.15377@seas.gwu.edu>, lai@seas.gwu.edu (William Y. Lai) writes:
>> In article <1ov6rj$gev@gabriel.keele.ac.uk> csd25@keele.ac.uk (C.M. Yearsley) writes:
>>>I've just bought a PC which came with a bundle of Lotus stuff, including
>>>Adobe Type Manager version 1.15. As a newcomer to Windows, I'm
>>>confused about which I should be using, ATM or Truetype.
>>>
>> ...
>There is a program called true-effects for windows, that allows you to define
>attributes for true-type fonts, and have them look like new fonts.  It will
>give your font different backgrounds, or shadows, or reverse, etc...
>It ONLY works with TT fonts.
Yes, and the idea was ripped off from Adobe, which has had a program
called  TypeAlign for a few years now.  TypeAlign does the same thing
for Adobe Type 1 fonts; *and* Adobe has said that the next version
will work with both Adobe Type 1 and TrueType.
And TypeAlign does some things that TrueEffects does not - including
some things you apparently want ...
>If you want to use it, you best not want to use it with an ATM type font.
>(Oh, yeah... lest you think this is a really cool program, none of the
>effects are scalable  (like the brick background pattern is the same size
>whether your font is 10 point of 100 point.), and it is not extensible,
>I.E. you CAN NOT add pattern of your own.
>And you can't rorate the background pattern...
>And you can't make the pattern extend beyond one character
>	(Every character in that new font has the entire pattern in it,
>	As opposed to having the SAME pattern run contiguously through
>	a couple of characters)
>It is however cheap.
>Maybe I will buy a copy when the next version comes out, if they fix some of
>these gripes...
>			John.
From: kwilson@casbah.acns.nwu.edu (Kirtley Wilson)
Subject: Mirosoft Office Package
Article-I.D.: news.1993Apr6.183345.28238
Organization: Northwestern University, Evanston Illinois.
Lines: 31
Nntp-Posting-Host: unseen1.acns.nwu.edu
I am in charge of purchasing some computer software for a small office and I
have a few question about Microsoft's Office Pack.
1)  I was wondering, are the programs that are packaged with the Office
Pack--WinWord, Power Point, Excel, and ccMail--complete and the latest
addition?
2) Are the programs "hobbled" in any way?
3) Can we update single programs at a latter date ( i.e. from Excel 4.0 to
Excel 5) ?
4) Do you receive all of the necessary disks and documentation?
5) Is there anything that I should be aware of that makes the Office Package
less of deal that it seems?
Sorry if I seem skeptical put the price for the Office Package--$439.39 on the
street--sounds like a great deal for the office that is purchasing its first
computer and software.  But all four complete programs for less than $450
makes me just a little suspicious.  Maybe its just me.
Thanks for your help in advance
Kirt Wilson
Northwestern University
-------------------------------
Internet: kwilson@casbah.acns.nwu.edu
Bitnet:   kwilson@casbah
From: leo@cae.wisc.edu (Leo Lim)
Subject: DOS6 - doublespace + stacker 3.0, is it okay?
Article-I.D.: doug.1993Apr6.133257.14570
Organization: College of Engineering, Univ. of Wisconsin--Madison
Lines: 7
Just as the title suggest, is it okay to do that?
I havne't got DOS6 yet, but I heart DoubleSpace is less tight than stacker 3.0.
What are disadvantage/advantages by doing that?
Any comments will be appreciated.
===Martin
From: robertt@vcd.hp.com (Bob Taylor)
Subject: Re: AmiPro/Deskjet 500 Printing Problem
Article-I.D.: vcd.C52wt5.F2
Distribution: usa
Organization: Hewlett-Packard VCD
Lines: 32
X-Newsreader: Tin 1.1 PL5
Tom Belmonte x4858 (tbelmont@feds55.prime.com) wrote:
:
: Hello,
:
: I recently tried to print some envelopes using AmiPro 3.0 with my
: Deskjet 500 printer, and I seem to be having a problem.  What
: happens is after I physically load the envelope into the printer
: (per the user manual) and then select the "Print Envelope" icon
: from AmiPro (all of the proper options have been selected), the
: printer just "spits out" the envelope without any printing of
: either a return address or the selected mailing address.  At
: this point, the printer's "ONLINE" light begins to flash, and
: the Print Manager shows the printer job as busy.  This is all
: that happens, until I either shut the printer off or cancel the
: printing job from the Print Manager.  I have also tried this
: without the use of the Print Manager, with similar results
: (AmiPro shows the printer as being busy).  So, does anybody
: have any idea/solution regarding this problem?  I appreciate
: the help.  Thanks.
Yes - ignore the manual.  Just insert the evelope - don't use the keypad
to move it up.  The Windows driver sends a message to the printer that
tells it to load the envelope - if it is already loaded, it gets ejected
and the printer tries to load another.  The instructions in the manual
are for dumb DOS apps. that don't send the "load envelople" message.
:
: -- Tom Belmonte
Bob Taylor
HP Vancouver
Subject: Re: WINBENCH 3.11 help -- graphics comparison?!?
From: franklig@helium.gas.uug.arizona.edu (Gregory C Franklin )
Organization: University of Arizona, Tucson
Lines: 32
In article <1pqd9hINNbmi@zephyr.grace.cri.nz> srg3sir@grv.grace.cri.nz writes:
>
>
>In article <C4zoGD.C56@news.udel.edu> swyatt@bach.udel.edu (Stephen L Wyatt) writes:
>>I have a question about WINBENCH (pc labs thing) 3.11..
>>
>>I have a 386/33 and a Ahead B (512k) card and got these results-
>>
>>windows vga driver - 2.44 million
>>ahead B (640-480-256) driver - 455,000 winmarks
>>windows svga (800-600-16) driver - 1.68 million winmarks...
>>
>>I was thinking about upgrading to a diamond 24x card.. I read it had about
>>8 million winmark..
>
>On my 386dx 33Mhz 4Mb RAM
>Winbench 2.5
> 24x v2.02 16.7M        1,668,274
>     v2.03 16.7M        1,668,985
>     v2.03 16           4,602,428
>     v2.03 256          7,635,278
Be very careful with these results!  As I recall, numbers from Winbench
2.5 are calculated differently from 3.1, and so these figures are not
comparable.
However, to answer Stephen's question, replacing the Ahead B card with
a Diamond 24x will yield a cost-effective, dramatic speed increase for
Windows.  That or the ATI Graphics Ultra Plus....
--
Greg Franklin
franklig@gas.uug.arizona.edu
From: rick@sundance.SJSU.EDU (Richard Warner)
Subject: Re: WinBench
Organization: San Jose State University - Math/CS Dept.
Lines: 36
al@col.hp.com (Al DeVilbiss) writes:
>jorge@erex.East.Sun.COM (Jorge Lach - Sun BOS Hardware) writes:
>> Is there any FTP site that carries WinBench results for different graphics
>> cards? In Excel (XLS) format? What is the latest version of WinBench and
>> how do they differ? Is the source available, and has anybody try to port it to
>> X-Window, at least in a way that will make comparisons possible?
>>
>On ftp.cica.indiana.edu in pub/pc/win3/misc/winadv.zip is a writeup by
>Steve Gibson of InfoWorld with winbench 3.11 and a number of other
>benchmark results for nine isa and four VLB video cards.  This is a
>very current upload and is likely to have any card you're currently
>giving serious consideration.  Not in XLS format.  Latest version of
>WinBench that I know of is ver 3.11.  I believe they try to maintain
>the same rating scale between versions, and new versions are released
>to defeat the lastest coding tricks put in by driver programmers to
>beat the benchmarks.  Don't know on the last one.
And why they are considering using WinBench as a test, they may want
to read everything Steve Gibson has said on the subject in his
InfoWorld column the past couple of month.  In short, virtually
every board manufacturer cheats on the test by writing things in the
driver that is there only to make the board appear faster on the
WinBench suite.  So the WinBench score has no bearing in reality to
how cards stack up on real world tasks.
In the last PC-Magazine they benchmarked some of the new accelerators,
and admitted that many of them 'cheated' on WinBench.  Interestingly,
they 'allowed' one type of cheating behaviour (caching for bitblt
operations, no matter how unreal), yet did not allow a couple of other
types of cheating behaviour that some of the cards used.  At least
one card was eliminated from the "Editor's Choice" because of
cheating on the benchmark.
>Al DeVilbiss
>al@col.hp.com
From: swyatt@bach.udel.edu (Stephen L Wyatt)
Subject: Re: Is Microsoft Windows really and Ope
Nntp-Posting-Host: bach.udel.edu
Organization: University of Delaware
Lines: 24
In article <1pr6r2$t7c@agate.berkeley.edu> neff123@garnet.berkeley.edu (Stephen Kearney) writes:
>
>Apparently not. Many people complain about the confusion that
>results from the filemanager/progman split. It's just a basic
>flaw.
>
I have one thing to say-- why does everyone say that spliting them up is
such a bad thing?  I actually like my program launcher and file manager
do be seperate.. it make things easier to figure out.. I mean, take a look
at OS/2's wps... (no flames!).. I personally hate it cause I just
have too much trouble figuring out how to do simple things like file copy..
and don't say "just drag the icon!".. Cause I hate icons in the first place.
I have too much trouble telling what all those little push buttons mean.
I want "F"ile "C"opy etc..
although I know I'm in the minority.
--
----------------------------------------------------------------------------
swyatt@brahms.udel.edu  !!! no disclaimer...I blame everything on someone else
----------------------------------------------------------------------------
From: swyatt@bach.udel.edu (Stephen L Wyatt)
Subject: Re: WinBench
Nntp-Posting-Host: bach.udel.edu
Organization: University of Delaware
Lines: 12
Ok, so if everyone is cheating.. is there any tests that run some
macro (to load a huge drawing, etc...) on the SAME machine that might
then tell us what the REAL world results are?
I mean, run the tests on the same machine with different video cards
running word, excel, or something like that to see how fast the cards are?
--
----------------------------------------------------------------------------
swyatt@brahms.udel.edu  !!! no disclaimer...I blame everything on someone else
----------------------------------------------------------------------------
From: franklig@helium.gas.uug.arizona.edu (Gregory C Franklin )
Subject: Re: Mouse on Com3OM3 or COM4 in Windows
Organization: University of Arizona, Tucson
Lines: 23
In article <C4v5p3.JyF@bcstec.ca.boeing.com> isbell@bcstec.ca.boeing.com (Robert Isbell) writes:
>jpaparel@cs.ulowell.edu (Joseph Paparella) writes:
>
>>I am having a problem configuring the mouse in windows to use COM3
>>with IRQ5.
>
>>COM1 and COM2 are being used to support two 24 hour bbs lines,
There you go.  COM1 and COM3 use the same IRQ, therefore you can't use
a mouse on COM3 and a modem on COM1, or vice versa.  It's a limitation
of DOS.
And in fact Windows will not see a mouse on anything other than COM1
or COM2.  Accept this fact, and either get a bus mouse, or get a new
computer.
>I would also like to know if it is possible to use the mouse on ports other
>than COM1 or COM2.
No.  The advice above applies....
--
Greg Franklin
franklig@gas.uug.arizona.edu
From: nagel@ucsu.Colorado.EDU (Kurt Nagel)
Subject: Re: AMI Pro 3.0 and equation mode
Nntp-Posting-Host: fido.colorado.edu
Organization: University of Colorado, Boulder
Lines: 37
nagel@ucsu.Colorado.EDU (Kurt Nagel) writes:
>Hi,
>	I'm having a problem with AMIPro when writing equations.  If the
>equation extends past a certain point on a line, the whole thing disappears.
>If I then try to delete the equation or cursor beyond the equation, AMI
>goes nuts.  The line counter at the bottom of the screen increments
>repeatedly and the only way out is to CTRL-ATL-DEL.  If I have been
>unfortunate enough to save a document with one of these screwed up
>equations, the document is basically trashed.  (although I have been
>able to fix them by going into an ascii editor and deleteing large
>chunks of the document)
>	Has anyone else experienced this?  Does Lotus know about it
>and or have a patch???????.
>Thanks in advance,
>Kurt
>nagel@fido.colorado.edu
I contacted Lotus about this problem today.  It has been reported previously
and there is a fix.  Apparantly the problem only occurs when TAB characters
are used immediately preceding the equation frame.  The work around when
equations are expected to touch the right margin is to delete at least one
preceding TAB and use SPACE to align the frame (or use set frame where
placed w/no text wrap around).  Unforutnately, once the page run-on has
occured you are hosed. So the moral of the story is use only SPACE characters
to align equation frames.
Hope this helps the rest of you who have already contacted me with this
problem.
Kurt
nagel@fido.colorado.edu
From: tomh@metrics.com (Tom Haapanen)
Subject: Hercules Graphite?
Organization: Software Metrics Inc.
Lines: 11
Has anyone used a Hercules Graphite adapter?  It looks good on paper, and
Steve Gibson gave it a very good review in Infoworld.  I'd love to get a
real-world impression, though -- how is the speed?  Drivers?  Support?
(Looking for something to replace this ATI Ultra+ with...)
--
[ /tom haapanen -- tomh@metrics.com -- software metrics inc -- waterloo, ont ]
[       "stick your index fingers into both corners of your mouth.  now pull ]
[          up.  that's how the corrado makes you feel."  -- car, january '93 ]
From: mcglob@usissc.DaytonOH.NCR.COM (Brian.McGloin)
Subject: Re: does dos6 defragment??
Reply-To: mcglob@usissc.DaytonOH.NCR.COM (Brian.McGloin)
Organization: DaytonOH.NCR.COM
Lines: 14
In article <1993Apr5.060929.7806@seas.gwu.edu> louray@seas.gwu.edu (Michael Panayiotakis) writes:
>
>Well, the subject saysit all:  does dos 6 do defragmentation??
>
Yes, both dblspaced and non-dblspaced drives can be defragmented. I believe
they use Norton's Speedisk.
--
Brian T. McGloin	| Lift your glasses, friend, with mine
NCR Corp.		| And raise your hand with me
USG/ISS-OLS		| I'm England stole, I'm Ireland spent
Miamisburg, OH 45342	| I'm an outlawed rapparee
From: hamish@cloud.apana.org.au (Hamish Moffatt)
Subject: Re: Mouse on Com3OM3 or COM4 in Windows
Organization: Cloud Nine BBS, Melbourne, Australia.
Lines: 53
jpaparel@cs.ulowell.edu (Joseph Paparella) writes:
> I am having a problem configuring the mouse in windows to use COM3
> with IRQ5.
I don't believe IRQ5 is the problem. I tried a mouse on COM3, IRQ4 (the
usual place) and it still did not like it. Simply, Windows seems to only
support mice on COM1 or COM2. The funny part is, though, that
Microsoft's own mouse driver (8.xx) was quite happy with my mouse
sitting on COM3. Why can't Windows use the mouse driver, or at least
support COM3? :-)
> COM2Irq=3
> COM3Irq=5
> COM4Irq=7
> MaxComPort=4
I've tried this too. Actually, I wanted to be able to use my second
modem (COM3/IRQ5) from Windows. It still will not talk to that modem. I
created two profiles, AMSTRAD (for my Amstrad modem on COM1/IRQ4) and
MAESTRO (for my Maestro on COM3/IRQ5). It will not talk to the Maestro
at all.
> (1,5106830617) that their driver does not support COM3 and COM4 in windows.
> Their suggestion was that the 'MicroSoft or PS/2' setting in windows
> setup would work. It does not.
Nor here. (Windows 3.0).
> I can not believe that it is not possible. At worst, you would need a special
> version of 'a' mouse driver that looked at COM3 and COM4 instead of COM1
> and COM2. I know that IRQ5 and IRQ7 are normally printer port IRQs, but I
I've seen nothing like that. I've experimented with Logitech's mouse
driver too, with no sucess.
> have no printers attached. A side note is that I would really like to assign
> COM4 to some higher IRQ, because my SoundBlaster board uses IRQ7 (right now,
> I'm not using COM4), but no modem that I know of allows settings other than
> IRQs 2,3,4,5, and 7.
If you have a SoundBlaster Pro, it should support IRQ10 as well.
Finally, a board that supports IRQs >9. The only one I have (except my
IDE controller).
hamish
Hamish Moffatt,      hamish@cloud.apana.org.au  APANA: The Australian Public
Cloud Nine BBS,      3:635/552@fidonet          Access Network Association.
Melbourne Australia  58:4100/43@intlnet         Mail info@apana.org.au
Titanic Software.    Voice: +61-3-803-1326      for information.
From: charles@trintex.uucp (Charles Emmons)
Subject: Version control for MAC and PC LAN
Organization: Prodigy Services Co.
Lines: 28
We have a LAN where we are doing development on product for multiple platforms.
For the moment we are only working on MAC and DOS/Windows. The department has
always used sneaker net to transport files to the MAC, since it requires a
filter to strip out the <LF> characters.
Until recently no one concidered using any version control to mediate, and as
a result, the 5 programmers spent a great deal of time merging files together
at the end of each week so that a new system could be build. We are now trying
to streamline this process, but are hampered by the lack of software that will
allow us to share files across PC and MAC platforms.
I understand that PVCS used to do this, but that they no longer support the MAC
product (anyone know why ??  Polytron ?).
I have seen people ask about development in multiple platforms, so I assume that
ours is not a new problem.  Who has had to deal with it ?  What solutions have
you come up with?
thanks in advance for any and all suggestions via posting or EMAIL. If there are
enough EMAIL responses then I will post a synopsis of the knowledge.
-Charles Emmons
--
Charles Emmons        | charles@trintex.uucp         | These opinions are
Prodigy Services Co.  | charles%trintex@uunet.uu.net | mine alone, unless
White Plains NY 10601 | Voice 914-993-8856           | you would like to
PRODIGY ID - KJRD82A  | FAX   914-993-8659           | share them.
From: liuxu@vuse.vanderbilt.edu (Xudong Liu)
Subject: File downloading
Originator: liuxu@cmr1
Nntp-Posting-Host: cmr1
Organization: Vanderbilt University School of Engineering, Nashville, TN, USA
Distribution: usa
Lines: 9
As a beginer, I just wonder how to transfer files from the Sun
system (which is on the network) to my PC at home (not connected
to the network). I tried to use 'COMit' to do so, but it was very
slow and it seemed that getting multiple files at the same time
was impossible. Could anybody give me some hints & infomation?
Thank you in advance.
liu
From: gt4356c@prism.gatech.EDU (James Dean Barwick)
Subject: Re: Permanaent Swap File with DOS 6.0 dbldisk
Distribution: git
Organization: Georgia Institute of Technology
Lines: 58
In comp.os.ms-windows.misc you write:
>While reading through the DOS 6.0 book, it states that the Windows permanaent swap file will not work correctly when placed on a compressed drive.  To make things compatable,
>I removed my Permanent swap file before starting the upgrade.  However, when all the dust settled, and I go into windows, it says that the temporary swap file is right where it always was, in the Windows directory.  My question is:  How come the temporary swap files works OK with a compressed drive, and the permanent one doesn't?
you might want to look in windows FAQ for this one, but here is my best
explanation.  But I can't guarantee that I'm not way off base...
The permenant swap file is read/written to by windows by talking
directly to the hard disk controller card.  The controller card must
use the protocal set up by western digital (or something like that).
Windows creates a file called spart.par in your windows directory that
points to that file.  It then uses the physical information about your
disk to index to information in that file.
compressed disks are actually "logical" disks.  These disks have different
characteristics than the actual physical disk.  Furthermore, the information
on the compressed disks must be uncompressed before it is used.  (i.e it must
go through the decompression program that traps disk reads at the operating
system level or the BIOS level).  Because of this "inbetween" program, windows
cannot use direct methods to read from the "logical" disk.
a permenant swap file is only there to "reserve" an area of the disk that
windows can use and to block that space from DOS.  Windows would theoretically
not even have to access the file from DOS to use that disk space. (I don't
know if it does or doesn't...but it checks for it somewhere everytime you
boot windows.)
a temporary swap file is just a normal DOS file that is accessed by windows
via DOS and the BIOS.  If a disk compression program or other TSR is loaded
the file access must go through DOS...TSR'S (disk compression)...and BIOS in
order to be access. (i.e. NEVER USE A TEMPORARY SWAP FILE...NEVER)
more on permenent swap files...
i'm sure everyone who has an uncompressed part of their compressed hard disk
has seen the message "you have selected a swap file greater than the suggested
size...windows will only use the size suggested...do you wan't to create this
swap file anyway" or something like that.
well, a friend of mine (ROBERT) called microsoft and asked them what and why.
what they said is that windows checks the amount of free disk space and
divides that number by 2.  Then it checks for the largest contiguous block
of free disk space.  Windows then suggests the smaller of the two numbers.
They also said that under absolutely no circumstances...NONE!...will windows
uses a swap file larger than the suggested size.  Well...that's what he
said!
I call bull@#$#.  If this is true why does windows report the memory is
available to me if it's not going to use it?
any takers?
James
(if this doesn't get to the net, will someone post it for me?  thanks)
From: carols@ohsu.edu (Carol Suelzle)
Subject: re: Help with WinQVT
Article-I.D.: ohsu.1993Apr15.164424.465
Organization: Oregon Health Sciences University
Lines: 17
Nntp-Posting-Host: 137.53.130.7
>This is the qvthost.rc file.
>137.112.5.2
>137.112.199.50
>
>
>
The host file requires the names that you'll be using in addition to the ip address
sucb as
100.0.0.1 name.server.name
100.2.2.1 name.router.name
Carols@ohsu.edu
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: Hercules Graphite?
Nntp-Posting-Host: silver.ucs.indiana.edu
Organization: Indiana University
Lines: 20
In article <1993Apr06.185638.12139@metrics.com> tomh@metrics.com (Tom Haapanen) writes:
>Has anyone used a Hercules Graphite adapter?  It looks good on paper, and
>Steve Gibson gave it a very good review in Infoworld.  I'd love to get a
>real-world impression, though -- how is the speed?  Drivers?  Support?
The PC World reviewers found out that the Herc people had hard-coded
Winbench text into the driver. Clever, no? In any case, the Winbench
results are pretty much inflated.
When and if you get one send me mail.. I might buy that ATI GU+ off
you.. 9-)
--
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
From: spitz@ana.med.uni-muenchen.de (Richard Spitz)
Subject: Re: Help with WinQVT
Reply-To: spitz@ana.med.uni-muenchen.de (Richard Spitz)
Organization: Inst. f. Anaesthesiologie der LMU, Muenchen (Germany)
Distribution: lrz
Lines: 63
swartzjh@NeXTwork.Rose-Hulman.Edu (Jeff H. Swartz) writes:
>  	when I use a name such as rosevc.rose-hulman.edu
>		Initiating nameserver query for 'rosevc'
>		nameserver query time out
>  	when I use the IP number
>		Local host or gateway not responding
>I know the nameserver is correct and the router is correct.  They work
>fine using NCSA telnet/ftp.
They are working ok, but your definitions in QVTNET.INI and QVTHOST.RC are
incorrect (see below).
>The docs said if you are running concurrent packet software you need to
>load PKTMUX???  Does this apply to me???
No, I don't think so. You are using QVTNET and NOVELL concurrently, aren't
you? They use different packet types, so QVTNET (TCP/IP) and NOVELL (IPX/SPX)
should be able to coexist just fine. PKTMUX is required if you are using
different TCP/IP-Packages concurrently.
>This is the qvthost.rc file.
>137.112.5.2
>137.112.199.50
There is the first problem: You didn't specify hostnames, just IP-Addresses.
Your file should look like this:
137.112.5.2        <Name of your Nameserver>
137.112.199.50     <Name of your Router>
>This is the beginning of the winqvt.ini file.
>[net]
>name=swartzjh.test.rose-hulman.edu
Here you should only specify your hostname, without the domain part.
>router=137.112.199.50
Instead, use router=<Name of your Router>, as specified in your QVTHOST.RC
I know the release notes for 3.31 say that IP addresses should work also,
but  apparently they don't.
>nameserver=137.112.5.2
Here, too, you should use the hostname of the nameserver instead of the
IP address.
It worked fine for me that way, although I could not specify more than
one nameserver. The relnotes say it should be possible to specify up to
three nameservers, separated by commas, but it didn't work.
Hope it helps,
Richard
--
+----------------------------+-------------------------------------------+
| Dr. Richard Spitz          | INTERNET: spitz@ana.med.uni-muenchen.de   |
| EDV-Gruppe Anaesthesie     | Tel     : +49-89-7095-3421                |
| Klinikum Grosshadern       | FAX     : +49-89-7095-8886                |
| Munich, Germany            |                                           |
+----------------------------+-------------------------------------------+
From: ntaib@silver.ucs.indiana.edu (Iskandar Taib)
Subject: Re: Windows 3.1 General Questions
Nntp-Posting-Host: silver.ucs.indiana.edu
Organization: Indiana University
Lines: 30
In article <1495@heimdall.sdrc.com> crgruen@sony1.sdrc.com (robert gruen) writes:
>1.  I received Amish Utilities for Windows when I purchased Turbo C++ for
>    Windows.  What is Amish Utilities?  What can it do for me?  All I
>    received was the disk, no docs.
Maybe it milks the dogcow? 9-)
>2.  I am running Windows in 1024x768x256 mode using a driver that was supplied
>    with my SVGA card.  The card is a BOCA SVGA card with 1Meg RAM, and I think
>    it has an ET4000 chip in it (at least thats what some program tells me).
>    The driver is an old driver that was written for Windows 3.1, it seems to
>    work fine, but would I gain any benefits by switching to a newer driver?  If
>    so which one should I use and where could I find it?
Lots of drivers are available off ftp.cica.indiana.edu in pub/pc/win3/
drivers/video. I've tried two: et4cview.zip and et4turbo.zip. These
give you a choice of turbo and non-turbo drivers. The turbo drivers
were FAST but caused mouse problems with my machine (which has a
Diamond Speedstar card). I finally got turbo drivers (wndSpeed by
Binar) from Diamond. Amazing. Blazingly fast (for a non-accelerated
card) and best of all - no GPF's for a month or so...
--
-------------------------------------------------------------------------------
Iskandar Taib                          | The only thing worse than Peach ala
Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
Bitnet:   NTAIB@IUBACS                 !
Organization: Penn State University
From: <DLS128@psuvm.psu.edu>
Subject: Fall Comdex '93
Lines: 8
Does anyone out there have any info on the up and coming fall comdex '93? I was
asked by one of my peers to get any info that might be available.  Or, could
anyone point me in the right direction?  Any help would be appreciated.
Dave Stevens                              dls128@psuvm.psu.edu
Training and Multimedia Services          dls128@psuvm
Penn State University
From: ajacobs@nyx.cs.du.edu (Andrew Jacobs)
Subject: Re: Using Microsoft Foundation Classes with Borland C++ 3.1
Organization: University of Denver, Dept. of Math & Comp. Sci.
Distribution: usa
Lines: 7
Thanks for the info.  I assume that this is for MFC 1.0.  Does anyone
know if this will work with MFC 2.0, or what else needs to be done?
Thanks.
--
*     *
- Andy Jacobs                       *
\_____/
From: moy@cae.wisc.edu (Howard Moy)
Subject: How to fix Word subscript spacing?
Organization: U of Wisconsin-Madison College of Engineering
Lines: 14
Hi,
I have a problem when using subscripts with MSWord.  The
problem is the subscripted characters get cut off on the display,
but print out ok.  Anyone know how to fix the subscripts so
I can see them on the screen?
Many thanks,
--
-Howard
_________________________________________________________
!                    Howard Moy				!
!                  (608) 255-6379			!
From: miket@empros.com (Mike Tipton)
Subject: Character Codes Problems
Reply-To: miket@empros.com
Nntp-Posting-Host: sbb1.empros.com
Organization: Empros Power Systems Control, a division of Siemens EA
Lines: 15
Help!
I am working on a project that involves using text with foreign language
characters (in this case Norwegian). I have been manipulating the data
with Excell 4.0 and then exporting the data as comma seperated variable
files to an RS6000 workstation.  The Norwegian characters show up fine
under Windows, but appear as "funny" characters on the workstation.  The
workstation is setup for national language support and we have problem
entering the Norwegian characters from the workstation keyboard.
On further investigation I found that the character codes used by
Windows are different (for these characters) than those specified by the
MSDOS code page.  The MSDOS codes seem to be the same as the
workstation.  What gives, and how can get around it.
Please reply by E-mail as I will be out of the office the next few days
and will not be reading the news.
Thanks.
From: mmccolli@comanche.ess.harris.com (Mike McCollister)
Subject: Faster OAK VGA drivers???
Nntp-Posting-Host: su100l.ess.harris.com
Reply-To: mmccolli@comanche.ess.harris.com
Organization: Harris Corporation, Government Aerospace Systems Division
Lines: 21
I'm using an OAK based VGA card on my computer (640x480x256).  I've
downloaded the driver from ftp.cica.indiana.edu and I've had good luck
with it.  However, does anyone know if a faster driver is available for
this card?
Thanks,
Mike
_________________________________________________________________________
/                                                                        /|
+------------------------------------------------------------------------+ |
|  _________                          |                                  | |
| |  _   _  | Michael J. McCollister  | Phone:  (407) 729-7054           | |
| |_| |_| | | Harris Corporation      | Email:                           | |
| |_/\/\/\|_| P.O. Box 94000          |   mmccolli@su100l.ess.harris.com | |
| | |_| |_| | Mailstop 100/4823       | -------------------------------- | |
| |_________| Palm Bay, Florida 32905 | I'm not going to say anything    | |
|                                     | stupid today.  Not!              |/
+------------------------------------------------------------------------+
From: 2a42dubinski@vms.csd.mu.edu
Subject: WORD 2.0 HELP!
Organization: Marquette University - Computer Services
Lines: 10
Reply-To: 2a42dubinski@vms.csd.mu.edu
NNTP-Posting-Host: vmsa.csd.mu.edu
Hello,
I'm having problems printing SPANISH characters with WFW2.  I was using the Celtic True type which has the accented characters, and used insert symbol to put in in the document.  However, when I put it in the doc, I get a big square character, and then it prints out just the same (to my dismay, thinking that was just the way it worked).
Can anyone tell me if and how they have printed Spanish characters?  I know WP 5.1 has this built-in, but I do not recall ever seeing this option on WFW2.  HELP!
------------------------------------------------------------------------
| Robert S. Dubinski |  Aliases include:  Robb, Regal, Sir, Mr., and I |
------------------------------------------------------------------------
| Marquette University ||||||||||| Math / Computer Science Double-Major|
------------------------------------------------------------------------
| Internet Address: 2A42Dubinski.vms.csd.mu.edu  |	Milwaukee, WI    |
------------------------------------------------------------------------
From: chakaw@stein.u.washington.edu (Chak-Yoon Aw)
Subject: Is there any documentation for Microsoft Diagnostics?
Article-I.D.: shelley.1qk9uqINNh0s
Distribution: na
Organization: University of Washington, Seattle
Lines: 10
NNTP-Posting-Host: stein.u.washington.edu
Hi,
I found what I believe is an undocumented feature in my windows directory,
Microsoft Diagnostics, ver 2.00. I am specifically interested in a more
in depth explanation of the legends in the memory mapping report.
Thanks.
Chak Aw
chakaw@u.washington.edu
Subject: Re: Postscript view for DOS or Windows?
From: hjstein@sunrise.huji.ac.il (Harvey J. Stein)
Distribution: world
Organization: /home/staff/hjstein/.organization
NNTP-Posting-Host: sunrise.huji.ac.il
In-reply-to: paladin@world.std.com's message of Thu, 8 Apr 1993 21:40:44 GMT
Lines: 6
I've been using version 2.5.2 of ghostscript, and I'm quite satisfied
with it.  There are, actually, 3 versions:  a plain dos version, a 386
version, and a windows version.
Harvey Stein
hjstein@math.huji.ac.il
From: finn@convex.com (Tom Finn)
Subject: Re: multiple desktops
Nntp-Posting-Host: eugene.convex.com
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
X-Disclaimer: This message was written by a user at CONVEX Computer
Corp. The opinions expressed are those of the user and
not necessarily those of CONVEX.
Lines: 22
In article <C56BHt.7qF@news.Hawaii.Edu> dmcgee@uluhe.soest.hawaii.edu (Don McGee) writes:
>
>Is there a free/share( ware) package that will allow multiple
>desktops in windows 3.1.  What is desired is to have a desk top
>for several people that each can personalize by name and choice
>of programs etc.
There's a package called Workspace on cica that has 5 desktops; I
haven't done much with it yet, but it seems to be able to do what you
want it to.
Don't have the exact archive name handy, but it's something like
wspace<blah>.zip.
Tom
--
finn@convex.com           			      I speak only for myself.
-----------------------------------------------------------------------------
"Peace is the name of the ideal we have deduced from the fact that there have
been pauses between wars."                 Jerry Pournelle in "The Mercenary"
From: mau@herky.cs.uiowa.edu (Mau Napoleon)
Subject: 2nd RFD: comp.databases.ms-access
Article-I.D.: rodan.1qkma9INNmbn
Organization: cs.uiowa.edu
Lines: 31
NNTP-Posting-Host: rodan.uu.net
This is the 2nd Reguest for Discussion ( RFD ) for the creation of
comp.databases.ms-access
The discussion period started on April 6 and it will last until April 28,
( 22 days ).
This is an official RFD for the creation of a new newsgroup for the
general discussion of the Microsoft Access RDMS.
NAME: COMP.DATABASES.MS-ACCESS
MODERATION: UNMODERATED. At this time, no need for a moderator has been
assertained. Future evaluation will determine if one is needed.
PURPOSE:
Access is a new RDBMS for the Windows Operating System. It includes WYSIWYG
design tools for easy creation of tables, reports, forms and queries and a
database programming language called Access Basic.
THe purpose of the group will be to provide help to people who use Access's
WYSIWYG design tools to create simple databases as well as to people who use
Access Basic to create complex databases.
RATIONALE:
Eventhough Access is a new RDBMS, it is very popular because of its Graphical
Development enviroment and its initial low price.
Been a version 1.0 product means that all Access users are Novices.
For that reason a newsgroup is needed where Access users can discuss
their experiences with the product and answer each other's questions.
--
Napoleon
mau@herky.cs.uiowa.edu
From: reczek@acsu.buffalo.edu (Timothy J. Reczek)
Subject: Wanted - dialog box to select file(s) for DOS apps
Article-I.D.: acsu.C5Jq1D.HCp
Organization: UB
Lines: 31
Originator: reczek@tolstoy.acsu.buffalo.edu
Nntp-Posting-Host: tolstoy.acsu.buffalo.edu
I'm looking for a program that will let me use a windows
common dialog box to select a file to use when running a DOS app.
Basically, I have several DOS apps that I use now and then
with different files.  They all accept a file as a command line
parameter, but the only way (at least that I know of) to do this
easily when running them from windows is to set up the PIF file so
that it prompts me for additional parameters (at which point I type
in the file name).
Problems are:
1) Sometimes I can't remember where the file is exactly located and it
would be nice to browse my directories for it without having to use the
file manager.
and 2) I'm lazy and hate to type long pathnames for files burried
several directory levels deep.
If anyone can point me to such a program or let me know of some
other way to handle this, I'd appreciate it.
Thanks,
Tim
--
The Net isn't organized enough to be considered an anarchy
reczek@autarch.acsu.buffalo.edu
From: alanchem@csd4.csd.uwm.edu (Alan Scott Olson)
Subject: Win NT - what is it???
Organization: Computing Services Division, University of Wisconsin - Milwaukee
Lines: 18
Distribution: usa
NNTP-Posting-Host: 129.89.7.4
Originator: alanchem@csd4.csd.uwm.edu
Two-part question:
1)  What is Windows NT - a 'real' windows OS?
2)  This past weekend, a local 'hacker' radio show metioned a new product
from Microsoft called 'Chicago' if I recall.  Anyone know what this is?
That is it -
Thanks a heap.
- Alan
--
______________/ Alan S. Olson  Swanson Environmental, Inc. \_________________
/     e-mail to alanchem@csd4.csd.uwm.edu  OR  alan@alchemy.chem.uwm.edu      \
|          Want some good music?  Check out Milwaukee's own BoDeans           |
+-----------------------------------------------------------------------------+
From: rnichols@cbnewsg.cb.att.com (robert.k.nichols)
Subject: Re: copy/move files in File Manager
Organization: AT&T
Distribution: usa
Lines: 25
In article <C58tsF.5yE@murdoch.acc.Virginia.EDU> rsc3e@orion.lib.Virginia.EDU (Scott Crittenden) writes:
>My understanding is that, to copy files from one directory to another on
>the same drive in File Manager (using a mouse), you hold down the CTRL key
>while dragging the file from one directory's window to the other.  This
>works for me... about 98% of the time.  The other 2%, the file gets
>_moved_ rather than copied.  Anybody else encountered this?
...
I tried to respond by email, but all attempts bounced.
The condition of the Ctrl key BEFORE you press the mouse button makes no
difference whatsoever.  You have to be holding the Ctrl key when you
RELEASE the mouse button if you want to force a copy operation.
Here's a simple experiment.  Select a file and begin to drag it (no Ctrl
key).  Notice that the file's icon disappears from the listing window.  Now
watch what happens to that icon as you press and release the Ctrl key
(keeping the mouse button pressed all the while).  In addition, the icon
that you are dragging will show a "+" while you are holding the Ctrl key,
indicating that the file is being copied rather than moved.
--
Bob Nichols
AT&T Bell Laboratories
rnichols@ihlpm.ih.att.com
From: charles@tinman.dev.prodigy.com ()
Subject: Re: Can I Change "Licensed To" Data in Windows 3.1?
Nntp-Posting-Host: tinman
Organization: Prodigy Services Company, White Plains, NY
Lines: 11
Have you tried re-installing the software?   Otherwise I would be dubious about
simple ways to change that screen. Is it not designed to be an embarassment to
would be pirates?
-Charles
--
Charles Emmons        | charles@trintex.uucp         | These opinions are
Prodigy Services Co.  | charles%trintex@uunet.uu.net | mine alone, unless
White Plains NY 10601 | Voice 914-993-8856           | you would like to
PRODIGY ID - KJRD82A  | FAX   914-993-8659           | share them.
From: charles@tinman.dev.prodigy.com ()
Subject: Re: multiple desktops
Nntp-Posting-Host: tinman
Organization: Prodigy Services Company, White Plains, NY
Lines: 16
In article <C56BHt.7qF@news.Hawaii.Edu> dmcgee@uluhe.soest.hawaii.edu (Don McGee) writes:
>
>Is there a free/share( ware) package that will allow multiple
>desktops in windows 3.1.  What is desired is to have a desk top
>for several people that each can personalize by name and choice
>of programs etc.
Amishware has one included in their package. They were advertising here on the
net a couple of weeks ago with a riduculously (That is in a good way, Ted!)
low price. Does anyone remember what it was ?
--
Charles Emmons        | charles@trintex.uucp         | These opinions are
Prodigy Services Co.  | charles%trintex@uunet.uu.net | mine alone, unless
White Plains NY 10601 | Voice 914-993-8856           | you would like to
PRODIGY ID - KJRD82A  | FAX   914-993-8659           | share them.
From: 2a42dubinski@vms.csd.mu.edu
Subject: Re: Can I Change "Licensed To" Data in Windows 3.1?
Organization: Marquette University - Computer Services
Lines: 19
Reply-To: 2a42dubinski@vms.csd.mu.edu
NNTP-Posting-Host: vmsd.csd.mu.edu
In article <1993Apr15.180633.3437@trintex.uucp>, charles@tinman.dev.prodigy.com () writes:
>Have you tried re-installing the software?   Otherwise I would be dubious about
>simple ways to change that screen. Is it not designed to be an embarassment to
>would be pirates?
>
ahh, yes, this is a fun topic.  No, once the name is incribed on the
disk, that is it, it is encoded.  Not even a HEX editor will find it.  You can
write over the "Licensed to:", but you can't change the name underneth it.  I
think if you wish to change this you would have to be a pirate, and we're not
going to promote that here.
------------------------------------------------------------------------
| Robert S. Dubinski |  Aliases include:  Robb, Regal, Sir, Mr., and I |
------------------------------------------------------------------------
| Marquette University ||||||||||| Math / Computer Science Double-Major|
------------------------------------------------------------------------
| Internet Address: 2A42Dubinski.vms.csd.mu.edu  |	Milwaukee, WI    |
------------------------------------------------------------------------
From: servis@author.ecn.purdue.edu (Brian K Servis)
Subject: Re: Ghostscript for win fonts????
Keywords: ghostscript,fonts
Organization: Purdue University Engineering Computer Network
Lines: 26
servis@author.ecn.purdue.edu (Brian K Servis) writes:
That's me....
>I just downloaded the Windows Ghostscript package(gswin252.zip,gs252ini.zip)
>from ftp.  When I load a PS file it says it cant find font and substitutes a
>font called Ugly. It is substituting for basic fonts such as Helv, and Cour.
>I would imagine that these fonts are included in its font library. Is there
>something I am doing wrong or am missing?  These Ugly fonts are not very clear
>and well defined, as in sharpness, etc, basically they are ugly!  Any advice
>is welcome.
Ok, I realize I have to get the font files from some ftp site.  I found them
at cica but I now have another question.....
Are the 24*.zip fonts compatible with gswin252??
>Please email
Brian Servis
===========================================================================
||  servis@author.ecn.purdue.edu   ||         "It Happened This Way"     ||
===================================|| actual quotes from insurance claims||
||  What I say may not be what I   ||                                    ||
||  think. What I say may not be   ||  "The pedestrian had no idea which ||
||  what Purdue thinks.            ||   way to go, so I ran him over."   ||
===========================================================================
From: dabl2@nlm.nih.gov (Don A.B. Lindbergh)
Subject: Diamond SS24X, Win 3.1, Mouse cursor
Organization: National Library of Medicine
Lines: 10
Anybody seen mouse cursor distortion running the Diamond 1024x768x256 driver?
Sorry, don't know the version of the driver (no indication in the menus) but it's a recently
delivered Gateway system.  Am going to try the latest drivers from Diamond BBS but wondered
if anyone else had seen this.
post or email
--Don Lindbergh
dabl2@lhc.nlm.nih.gov
From: jroberts@ux4.cso.uiuc.edu (Robertson)
Subject: ATI ultra pro Drivers?
Organization: University of Illinois at Urbana
Lines: 4
Does anybody know the FTP site with the latest Windows drivers for the ATI
GUP?
Thanks
From: guyd@austin.ibm.com (Guy Dawson)
Subject: Re: Hercules Graphite?
Originator: guyd@pal500.austin.ibm.com
Organization: IBM Austin
Lines: 38
In article <C5JBKF.9B8@usenet.ucs.indiana.edu>, ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
> In article <1993Apr06.185638.12139@metrics.com> tomh@metrics.com (Tom Haapanen) writes:
>
> >Has anyone used a Hercules Graphite adapter?  It looks good on paper, and
> >Steve Gibson gave it a very good review in Infoworld.  I'd love to get a
> >real-world impression, though -- how is the speed?  Drivers?  Support?
>
> The PC World reviewers found out that the Herc people had hard-coded
^^^^
I think it was the IIT people who make the chip the card is based on who hard-coded
the string.
One of the weeklies looked into this an came to the conclusion that the IIT chip
was still pretty fast.
> Winbench text into the driver. Clever, no? In any case, the Winbench
> results are pretty much inflated.
>
> When and if you get one send me mail.. I might buy that ATI GU+ off
> you.. 9-)
>
>
>
> --
> -------------------------------------------------------------------------------
> Iskandar Taib                          | The only thing worse than Peach ala
> Internet: NTAIB@SILVER.UCS.INDIANA.EDU |    Frog is Frog ala Peach
> Bitnet:   NTAIB@IUBACS                 !
Guy
--
-- -----------------------------------------------------------------------------
Guy Dawson - Hoskyns Group Plc.
guyd@hoskyns.co.uk  Tel Hoskyns UK     -  71 251 2128
guyd@austin.ibm.com Tel IBM Austin USA - 512 838 3377
From: kentiler@matt.ksu.ksu.edu (Kent P. Iler)
Subject: Procomm Plus for windows problems....
Organization: Kansas State University
Lines: 10
NNTP-Posting-Host: matt.ksu.ksu.edu
Hi,
I have normal procomm plus for dos, but I've been considering buying
the windows version....it got really great reviews in computer shopper.
I have a friend who connects to the mainframe and unix machines here
using it, but the screen seems to have a problem keeping up with the
modem....he has a 14,400 modem on a 486 50 Mhz machine.  I can't
see it having trouble keeping up.  His pcplus for dos works great,
but the windows just seems to always screw up....Is this common
and is there a fix?  Or is something just screwed with his machine?
Kent
From: msk9@po.CWRU.Edu (Mahesh S. Khot)
Subject: Quattro Pro File Format
Organization: Case Western Reserve University, Cleveland, OH (USA)
Lines: 12
Reply-To: msk9@po.CWRU.Edu (Mahesh S. Khot)
NNTP-Posting-Host: thor.ins.cwru.edu
We are trying to write a program which can read files created by quattro
pro 3.0 and above.  Would anyone know where to find information regarding
the format in which Quattro Pro stores its files.
Thanks in Advance
Mahesh
--
famous dummies =  Madam Tussade's Wax Museum.
Still at Case msk9@po.cwru.edu
From: bharper@cimlinc.uucp (Brett Harper)
Subject: GUI Application Frameworks for Windows ??
Organization: CIMLINC, Inc. - Engineering
Lines: 63
Hello,
I'm investigating the purchase of an Object Oriented Application Framework.  I have
come across a few that look good:
Zapp 1.1 from Inmark
Zinc 3.5 from Zinc software
C++/Views from Liant
Win++ from Blaise
Some considerations I'm using:
Being new to Windows programming (I'm from the UNIX/X world), the quality and
intuitivness of the abstraction that these class libraries provide is very
important.  However, since I'm not adverse to learning the internals of Windows
programming, the new programming methodology should be closely aligned with
the native one.  I don't believe arbitrary levels of abstraction, just for the
sake of changing the API, are valuable.
Since we will be developing for the 32bit Windows NT system the
memory management issues and issues particular to the Windows 3.1 API are less
important.
We will probably buy another C++ class library (something like Tools.h++ or Booch
components from Rational) to handle data structures and other miscellaneous stuff
(allocators etc...).  So those features are not that important for this toolkit to have.
The two that I have narrowed it down to are ZApp and Zinc, they seem to be the two
toolkits that have received the most attention from the media.  I was wondering if
anyone had any first-hand experience with any of these toolkits (especially ZApp and Zinc).
A couple of observations about these toolkits that seem particularly noteworthy are:
ZApp
----
Seems to have the most extensive coverage of Windows functionality and
also includes some other miscellaneous useful classes.
Has new fancy 3D-style controls available, and support for custom controls.
Has a Windows NT version (Essential)
Redirectable graphics display/output architecture (useful for printing)
Sizer class for automatically managing control layout after resize.
Seems to be the newcomer, this could be an advantage in designing a better system.
Zinc
----
Has a platform independent resource strategy.  (Not too important for me right now)
Comes with a interface builder tool
Has a Windows NT version (Essential)
Seems to have been around longer (more mature), but grew up out of a DOS version.
Had a better demo :-)
Both have source code availability options
Both are lacking OLE support
Neither seem to have any particular support for multimedia type stuff
Any thoughts anyone has on this would be much appreciated,
Thanks,
Brett Harper
brett.harper@cimlinc.com
From: rnichols@cbnewsg.cb.att.com (robert.k.nichols)
Subject: Re: Permanaent Swap File with DOS 6.0 dbldisk
Summary: PageOverCommit=factor
Organization: AT&T
Lines: 50
In article <93059@hydra.gatech.EDU> gt4356c@prism.gatech.EDU (James Dean Barwick) writes:
...
>more on permenent swap files...
>
>i'm sure everyone who has an uncompressed part of their compressed hard disk
>has seen the message "you have selected a swap file greater than the suggested
>size...windows will only use the size suggested...do you wan't to create this
>swap file anyway" or something like that.
>
>well, a friend of mine (ROBERT) called microsoft and asked them what and why.
>what they said is that windows checks the amount of free disk space and
>divides that number by 2.  Then it checks for the largest contiguous block
>of free disk space.  Windows then suggests the smaller of the two numbers.
>
>They also said that under absolutely no circumstances...NONE!...will windows
>uses a swap file larger than the suggested size.  Well...that's what he
>said!
>
>I call bull@#$#.  If this is true why does windows report the memory is
>available to me if it's not going to use it?
I think the support droid was malfunctioning and confused the disk space
limit with the virtual address space limit.  As far as the disk is
concerned, you are limited only by the amount of contiguous free space.
The limit that causes the message, "Windows will only use ...," is the
amount of virtual address space that the Virtual Memory Manager will
create, and this is a function of the amount of free memory that you have
when Windows starts.
In the [386enh] section of SYSTEM.INI, you can specify a parameter:
PageOverCommit=multiplier
The following description is from the Windows Resource Kit:
This entry specifies the multiplier what determines the amount of
linear address space the VMM will create for the system, which is
computed by rounding up the amount of available physical memory to
the nearest 4 MB and then multiplying that value by the value
specified for PageOverCommit=.  Increasing this value increases the
amount of available linear address space, causing the size of data
structures to increase.  This also increases paging activity
proportionately and can slow down the system.  You can specify a
value between 1 and 20.  The default is 4.  To change this entry,
you must edit SYSTEM.INI.
--
Bob Nichols
AT&T Bell Laboratories
rnichols@ihlpm.ih.att.com
From: rmohns@vax.clarku.edu
Subject: RE: Win NT - what is it???
Organization: Clark University
Lines: 52
In a previous article, alanchem@csd4.csd.uwm.edu (Alan Scott Olson) wrote:
>Two-part question:
>
>1)  What is Windows NT - a 'real' windows OS?
>
>2)  This past weekend, a local 'hacker' radio show metioned a new product
>    from Microsoft called 'Chicago' if I recall.  Anyone know what this is?
>
>That is it -
>
>Thanks a heap.
>
>- Alan
Windows NT is a giant Windows Operating System.  Unline Win3.1, it does not
run on top of DOS.  It is its own OS, with (Billy Gates assures us) true
multi-tasking/multithreading, meets DOD security specs, will run win3.1
programs as well as DOS programs, has multi-processor support, and is
primarily a Server program.  It's overhead is too high for it to be
economical for most users.
Speaking of overhead, it requires at least a 386 with 16 megs of RAM.
It iwll run with 12, but that's like running OS/2 2.0 with 4 megs.  And that's
just to run it.  Also, I have heard that the system files take up 30-50 Megs,
and it is recommended that your drive be a half gig!  The SKD is distributed
on CD-ROM.
Chicogo is what I want to use.  It is, like NT, a true OS with thrue
multitasking and multithreading, but has much smaller hardware requirements,
and does not meet DOD security specs (but that's okay since it will probably
be more of a client OS).  there are a few otehr differences, but those are the
main ones.  There was an article about Chicogo in PC Week last August.
The Chicogo and NT development groups at Micro$oft are in intense
competition, so it is said.  However, I think a different relationship will
arise: NT will be the server (*N*etowrk *T*echonology), Chicogo will be the
client machine.  It is entirely possible for different OS's to work together,
partly because Chicogo is just a small NT (think of it that way, anyway).
(Novell Netware creates an OS on the server that is truly not DOS, so don't
scorn the concept.)
Anyway, don't expect it soon.  Windows 4 and DOS 7 are supposed to be
released next year (read: see it in 95), so I expect that Chicogo won't be out
til '96.
With luck, I'll be proven wrong! =)
Rob
|------------------------------------------------------------|
\       rmohns@vax.clarku.edu       /
_________\                               /________
\         Rob Mohns         /
==================================================
Annoy Rush Limbaugh.  Think for yourself.
==================================================
From: rmohns@vax.clarku.edu
Subject: RE: Can I Change ""Licensed To"" Data in Windows 3.1?
Organization: Clark University
Lines: 15
This is in relation to a question concerning changing the registered to:
information of MS-Windows...
In a previous article, 2a42dubinski@vms.csd.mu.edu wrote:
>
>	ahh, yes, this is a fun topic.  No, once the name is incribed on the
>disk, that is it, it is encoded.  Not even a HEX editor will find it.  You can
>write over the "Licensed to:", but you can't change the name underneth it.  I
I can find it with a HEX editor, although I have not tried to overwrite it.
Are you sure it can't be?  You may be mistaken about this. (???)
Rob
rmohns@vax.clarku.edu
From: wil@shell.portal.com (Ville V Walveranta)
Subject: Re: Fall Comdex '93
Nntp-Posting-Host: jobe
Organization: Portal Communications Company
X-Newsreader: TIN [version 1.1 PL8]
Lines: 20
DLS128@psuvm.psu.edu wrote:
: Does anyone out there have any info on the up and coming fall comdex '93? I was
: asked by one of my peers to get any info that might be available.  Or, could
: anyone point me in the right direction?  Any help would be appreciated.
It's in Las Vegas (as always) between November 16th and 20th.
For more information contact: The Interface Group
300 First Avenue
Needham, MA  02194-2722
Sorry, no phone number available. Consult directory service
in Massachusetts for the number (617, 508 or 413).
-- Willy
--
*    Ville V. Walveranta      Tel./Fax....: (510) 420-0729     ****
**   96 Linda Ave., Apt. #5   From Finland: 990-1-510-420-0729  ***
***  Oakland, CA  94611-4838  (FAXes automatically recognized)   **
**** USA                      Email.......: wil@shell.portal.com  *
From: bcasavan@skyhawk.ecn.uoknor.edu (Brent Casavant)
Subject: Re: Permanaent Swap File with DOS 6.0 dbldisk
Summary: Explanation of message
Nntp-Posting-Host: skyhawk.ecn.uoknor.edu
Organization: Engineering Computer Network, University of Oklahoma, Norman, OK, USA
Lines: 63
In article <93059@hydra.gatech.EDU> gt4356c@prism.gatech.EDU (James Dean Barwick) writes:
[Stuff deleted]
>
>more on permenent swap files...
>
>i'm sure everyone who has an uncompressed part of their compressed hard disk
>has seen the message "you have selected a swap file greater than the suggested
>size...windows will only use the size suggested...do you wan't to create this
>swap file anyway" or something like that.
>
>well, a friend of mine (ROBERT) called microsoft and asked them what and why.
>what they said is that windows checks the amount of free disk space and
>divides that number by 2.  Then it checks for the largest contiguous block
>of free disk space.  Windows then suggests the smaller of the two numbers.
>
>They also said that under absolutely no circumstances...NONE!...will windows
>uses a swap file larger than the suggested size.  Well...that's what he
>said!
>
>I call bull@#$#.  If this is true why does windows report the memory is
>available to me if it's not going to use it?
>
>any takers?
>
>James
Well, someone at Microsoft told you wrong.  Windows will use a swap file
larger than the recommended size.  Last summer I went to a Microsoft
Windows 3.1 Technical Workshop and they distributed A LOT of information
that the general public might not be aware of.  Anyway in the main book
they handed out they have a section on "Creating larger than recommended
swapfile".  I'll quote the information
If you create a permanent swapfile larger than the recommended size, you
will receive a message telling you that Windows will not use anything
larger than the recommended size.  THIS ERROR MESSAGE IS INCORRECT, we
will allow the use of the larger swapfile, up to four times the amount
of RAM on your machine.
So as you see, Microsoft does know that the information is incorrect.  You
probably just ran into some doofball who was new on the job and was only
telling you what little he knew.
Be that what it may, I would really suggest to everyone to take the
opportunity to go to these Technical Workshops.  They aren't actually
incredibly in-depth, but you do get a lot of material about bugs and
optimization straight from those in the know.  Besides that they offer
you HUGE discounts on software.  If I remember correctly, you could pick
up Word 2.0, Excel 4.0, or whatever their presentation program is for $130.
That is the full blown version, not an upgrade or educational version.  You
could also pick up Microsoft Office for $500 or something like that.  Myself
I sprang for Word.
Well, hope that was helpful to someone.  And besides that I hope someone
will go to a workshop and save a little money.
And if anyone at Microsoft is reading this -- I really love your products.
I need a job once I graduate also, can we work something out?  ;-)
Thanks,
Brent Casavant
bcasavan@mailhost.ecn.uoknor.edu
From: fisk@cvdv99.mayo.edu (Tom Fisk | 2D-337 STM | 5-4341)
Subject: Re: ATI ultra pro Drivers?
News-Software: VAX/VMS VNEWS 1.41
Reply-To: fisk@mayo.edu
Organization: University of Arizona MIS Department - Mosaic Group
Lines: 20
In article <C5JLDC.HL9@news.cso.uiuc.edu>, jroberts@ux4.cso.uiuc.edu (Robertson) writes...
>Does anybody know the FTP site with the latest Windows drivers for the ATI
>GUP?
>Thanks
>
The latest driver release is 59 and can be found at ftp.cica.indiana.edu
in the pub/pc/win3/... directory structure as pro59.zip.  I checked with ATI's
BBS last nite and there were no releases past 59.
We have the ATI Local Bus card and I noticed that I get garbage around the
edges of a window when I move it.  Has anybody else noticed this also?
Tom.
-------------------------------------------------------------------------------
Thomas B. Fisk          +----------------------------+  Internet: fisk@mayo.edu
Mayo Clinic             |   If you don't know where  |  Voice: (507) 255-4341
200 First Street SW     |  you're going you'll never |  FAX: (507) 255-5484
Mail Stop 2D-337 STM    |         get there.         |
Rochester, MN  55905    +----------------------------+
-------------------------------------------------------------------------------
From: chen@citr.uq.oz.au (G. Chen)
Subject: Help on bitmaps
Summary: Bitmap size
Keywords: Bitmap, windows 3.1, SDK
Organization: Prentice Centre, University of Queensland
Lines: 18
I wonder if anyone can tell me whether or not I can create a bitmap
of any size?  I followed the bitmap creation example in SDK manual
and specified a 24x24 bitmap (set the width/height to 24) and supplied
a byte string with 72 chars.  But I just cannot get the right bitmap
image.  I changed the width/height to 32x32 and used the same value
string (padded with zero byets to make up to the right size) and
got the image.
The example in the manual is 64x32 size, which are multiple of 2 bytes.
Can you define a bitmap image of any size?
Thanks very much.
G Chen chen@citr.uq.oz.au
--
G. Chen, Centre for Information Technology Research, University of
Queensland, Australia 4072
chen@citr.uq.oz.au  Tel: +61 7 365 4325, Fax +61 7 365 4399
From: maley@micro.cs.umn.edu (Michael P Maley)
Subject: Re: GUI Application Frameworks for Windows ??
Nntp-Posting-Host: micro.cs.umn.edu
Organization: University of Minnesota
Lines: 6
I look at zApp and really liked it. However, I think you should
wait for version 2.0 (I think it will be out soon).
Mike Maley
maley@cs.umn.edu
From: chrisa@hpwarr.hp.com ( Chris Almy)
Subject: Re: (?) SpeedSTAR VGA Card Win. Drivers
Reply-To: chrisa@hpwarr.UUCP
Keywords: VGA SpeedSTAR Drivers Video Card
Lines: 6
These drivers (updated) are available directly from Diamond.
they will even ship them to you at no charge.(at least they
did for me.)
From: ak333@cleveland.Freenet.Edu (Martin Linsenbigler)
Subject: Re: Permanent Swap File
Organization: Case Western Reserve University, Cleveland, OH (USA)
Lines: 39
Reply-To: ak333@cleveland.Freenet.Edu (Martin Linsenbigler)
NNTP-Posting-Host: hela.ins.cwru.edu
In a previous article, mlipsie@rdm09.std.com (Mike Lipsie MPU) says:
>In article <C54yFD.6LD@sunfish.usd.edu> pwiseman@salmon.usd.edu (Cliff) writes:
>>
>>Your swap file is purged every time you exit windows. If you shut off your
>>computer without exiting windows your swap file remains. 20 Mb is on the large
>>side, are you running more applications than you really need to at the same time?
>
>This is, of course, not true.  The *temporary* swap file is purged
>every time you exit windows.  The permanent file is permanent and
>can only be changed by adjusting the virtual memory.
>
>I suspect that either the original poster was "tinkering" and
>adjusted the swap file to 20MB (and then forgot about it) or
>somebody "helped" him.
>
>--
>Mike Lipsie                                (work) mlipsie@ca.merl.com
>Mitsubishi Electronic Research Laboratory  (home) mikel@dosbears.UUCP
>
When I first setup windows using the self load mode It grabbed about
20 megs of swap file space, my 120 meg HD was nearly empty at that time.
I deleted windows for a time and recently reloaded, now my HD is nearly full
and windows just took 4 megs.
I have read somewhere that the best rule of thumb is have your
permanent swap file the same size as your regular RAM size.  I have 4 megs
of RAM and windows took 4 meg perm swap file.  Works very well.
In fact with my available HD space, about 20 megs it won't let me make
the swap file any bigger.
You should change your virtual mem swap file to 8 megs I think
that is what you said your RAM was.
C-ya..... /\/\artin
--
This communication is sent by    /\/\artin   University of Arizona Tucson
=========================================================================
ak333@cleveland.freenet.edu   mlinsenb@ccit.arizona.edu  mlinsenb@arizvms
DEATH HAS BEEN DEAD FOR ABOUT 2,000 YEARS ****** FOLLOW THE KING OF KINGS
From: jmeyers@ecst.csuchico.edu (Jeff Meyers)
Subject: Re: Procomm Plus for windows problems....
Organization: California State University, Chico
Lines: 20
NNTP-Posting-Host: psycho.ecst.csuchico.edu
In article <1qkqrhINNobc@matt.ksu.ksu.edu> kentiler@matt.ksu.ksu.edu (Kent P. Iler) writes:
.
.
>I have a friend who connects to the mainframe and unix machines here
>using it, but the screen seems to have a problem keeping up with the
>modem....he has a 14,400 modem on a 486 50 Mhz machine.
Tell him he probably needs to upgrade to a faster video card!  My 9600 baud
modem was one of the reasons I sought out the Diamond Speedstar 24X. I get
about 7 million WinMarks on my 386-25 and it just about keeps up with the
modem speed (using procomm plus for windows, too).  He should get over
10 million on his machine with the same card.  Anything 10+ should yield
acceptable speed...
--
============================================================================
| Jeff Meyers      |  jmeyers@ecst.csuchico.edu      | 39x43'N  121x48'W   |
| Chico, Ca 95926  |  KD6DIS@KE6LW.#NOCAL.CA.USA.NA  | Grid: CN80-CM99 ??  |
============================================================================
From: goudswaa@fraser.sfu.ca (Peter Goudswaard)
Subject: What is REGLOAD.EXE?
Keywords: regload
Organization: Simon Fraser University, Burnaby, B.C., Canada
Lines: 15
Perusing through my Windows 3.1 directory, I came across a file
called REGLOAD.EXE.  I assume this is part of the registration
database, but neither my Windows manual, Win Resource Kit, nor
PC Mag's description of files in the Windows directory had a
reference to it.  At least not one that I could find.  Does
REGEDIT.EXE use it?  Or am I way off base?
--
Peter Goudswaard                  _________                     _________
goudswaa@sfu.ca (preferred)      |         |      __/^\__      |         |
pgoudswa@cln.etc.bc.ca           |         |      \     /      |         |
pgoudswa@cue.bc.ca               |         |   _/\_\   /_/\_   |         |
|         |   >           <   |         |
"There's no gift like the present"         |    >_________<    |         |
- Goudswaard's observation    |_________|         |         |_________|
From: JOEL@jach.hawaii.edu (Joel Aycock)
Subject: Re: page setup in Notepad
In-Reply-To: krh@cbnewsh.cb.att.com's message of Tue, 13 Apr 1993 20:05:08 GMT
Organization: UK Infrared Telescope, Joint Astronomy Centre, Hawaii
X-News-Reader: VMS NEWS 1.20
Lines: 22
In <1993Apr13.200508.5167@cbnewsh.cb.att.com> krh@cbnewsh.cb.att.com writes:
> I often use Notepad to view and print "read.me" type files. I often find
> myself rushing to get to Print Manager to stop the printer and delete
> the file from the print queue because I've forgotten to reset the print
> margins from .75 inches (left and right) to 0 inches. The resulting printed
> text looks all chopped up because of the hard returns in the source file.
>
[...]
I struggled with the margin problem for ages as well, until I
finally got hold of the shareware binary editor BEAV133, and dug into
NOTEPAD.EXE (there is no SETUP facility to force NOTEPAD to default to
0.0 margins- it's hardwired into code!!!).
Do a SEARCH for ".75", then change the offending bytes to ".00",
et viola. Who are the guys who hardcode these "options" anyway?
I'm interested in whether the problem only rears it's ugly head for
certain printers- I'm using an old Epson LX-800 (or is that EX-800? never can
remember).
aloha.
From: brzyckmj@dunx1.ocs.drexel.edu (Mike)
Subject: Panasonic KX-P1091i Driver?
Organization: Drexel University, Phila. Pa.
Lines: 2
Does anyone out there know if there are print drivers for Windows for the
Panasonic KX-P1091i 9-pin dot matrix printer?
From: csd25@keele.ac.uk (C.M. Yearsley)
Subject: Re: Can I Change "Licensed To" Data in Windows 3.1?
Lines: 13
Distribution: world
NNTP-Posting-Host: seq1.cc.keele.ac.uk
X-Newsreader: TIN [version 1.1 PL6]
: write over the "Licensed to:", but you can't change the name underneth it.  I
: think if you wish to change this you would have to be a pirate, and we're not
: going to promote that here.
:
Not so! My computer was supplied with my name in an 'interesting'
mix of upper and lower case, and my workplace mis-typed. I'm
getting fed up with being 'CMyearslEY' at 'KEEL UNVERSITY'!
It took me 20 (!) phone calls to the supplier to get the computer
working at all. I really can't face tackling them again....
Chris
From: root@c1.nkw.ac.uk (Convex UNIX)
Subject: re: Help with WinQVT
Reply-To: tb@ua.nbu.ac.uk
Organization: Natural Environment Research Council
Lines: 4
I had a similar problem - try changing the netmask to 0.0.0.0 or 255.255.254.0
Tommy.
From: jpaparel@cs.ulowell.edu (Joseph Paparella)
Subject: Re: Is Anyone Using Video For Windows?
Keywords: Video Windows
Organization: UMass-Lowell Computer Science
Distribution: na
Lines: 4
My suggestion would be to contact Microsoft about the Video4Windows SDK.
You would need to call Developer Services at (800)227-4679 extension 11771
from 6:30am to 5:30pm Pacific time.
From: kjell@hut.fi (Kjell Ljungqvist)
Subject: Driver for Panasonic KX-P4430
Organization: Helsinki University of Technology
Lines: 15
Distribution: comp
Reply-To: Kjell.Ljungqvist@hut.fi
NNTP-Posting-Host: sandman.cs.hut.fi
Greetings!
I am looking pro a Win 3.1 printer driver for the Panasonic laser printer
KX-P4430. (I am not sure about the order of the first letters in the
name, but the numbers are right and they are important.) I have found
drivers for Panasonic printers 4450 and so on, but I think there should
be drivers available where the 4430 model is included.
Grateful for any help!
--
-------------------------------------------------------------------------------
kjell@hut.fi 	kjell@niksula.hut.fi	kjell@vipunen.hut.fi
-------------------------------------------------------------------------------
From: adriene_nazaretian@qm.yale.edu (ALN - Go NY Giants!)
Subject: Re: RE: Win NT - what is it???
Nntp-Posting-Host: gorgon.cis.yale.edu
Organization: Yale University; New Haven, Connecticut   USA
Lines: 72
In article <16APR93.02170289@vax.clarku.edu>, rmohns@vax.clarku.edu says:
>
>In a previous article, alanchem@csd4.csd.uwm.edu (Alan Scott Olson) wrote:
>>Two-part question:
>>
>>1)  What is Windows NT - a 'real' windows OS?
>>
>>2)  This past weekend, a local 'hacker' radio show metioned a new product
>>    from Microsoft called 'Chicago' if I recall.  Anyone know what this is?
>>
>>That is it -
>>
>>Thanks a heap.
>>
>>- Alan
>
>Windows NT is a giant Windows Operating System.  Unline Win3.1, it does not
>run on top of DOS.  It is its own OS, with (Billy Gates assures us) true
>multi-tasking/multithreading, meets DOD security specs, will run win3.1
>programs as well as DOS programs, has multi-processor support, and is
>primarily a Server program.  It's overhead is too high for it to be
>economical for most users.
It also runs OS/2 character based apps and POSIX apps.  The DOS, 16bit
and 32 bit windows apps run in a windows 32 bit subsystem.
If you consider the fact that NT has:
the Lanman redirectors,
built in support for TCP/IP
built in support for NETBEUI
comes with TCP utils like ping and an ftp client, etc
applications like schedule+ and a 32 bit version of msmail
the storage argument isnt an issue.
>        Speaking of overhead, it requires at least a 386 with 16 megs of RAM.
>It iwll run with 12, but that's like running OS/2 2.0 with 4 megs.  And that's
>just to run it.  Also, I have heard that the system files take up 30-50 Megs,
>and it is recommended that your drive be a half gig!  The SKD is distributed
>on CD-ROM.
>
I ran it on a 486 with 8MRAM and it did a ton of disk swapping, with a 19M
virtual memory paging file.  It functioned but it crawled.  (this was the OCT
build)
I upgraded the machine to 16M and the performance is good,
At that point I installed the March Build.  Consider they
are probably still working on the feature set, and havent done a lot of fine
tuning to the code yet.
>Chicogo is what I want to use.  It is, like NT, a true OS with thrue
>multitasking and multithreading, but has much smaller hardware requirements,
>and does not meet DOD security specs (but that's okay since it will probably
>be more of a client OS).  there are a few otehr differences, but those are the
>main ones.  There was an article about Chicogo in PC Week last August.
>        The Chicogo and NT development groups at Micro$oft are in intense
>competition, so it is said.  However, I think a different relationship will
>arise: NT will be the server (*N*etowrk *T*echonology), Chicogo will be the
>client machine.  It is entirely possible for different OS's to work together,
>partly because Chicogo is just a small NT (think of it that way, anyway).
>(Novell Netware creates an OS on the server that is truly not DOS, so don't
>scorn the concept.)
>        Anyway, don't expect it soon.  Windows 4 and DOS 7 are supposed to be
>released next year (read: see it in 95), so I expect that Chicogo won't be out
>til '96.
I have little info on Chicago so I cant make a comparison.  Is it in Beta?  Is
there anyone out there who has tested both and cares to make a comparison?
Just my $0.02
/ALN
From: dil.admin@mhs.unc.edu (Dave Laudicina)
Subject: Re: RE: Win NT - what is it???
Nntp-Posting-Host: dil.adp.unc.edu
Organization: UNC Office of Information Technology
Lines: 20
>
>I have little info on Chicago so I cant make a comparison.  Is it in Beta?  Is
>there anyone out there who has tested both and cares to make a comparison?
>Just my $0.02
>
>/ALN
Chicago from what I have read is projected to run in 4M on 386 and higher.
It is definitely aimed at the desktop.
It  is rumored to offer preemptive multitasking,
multithreading but will not offer multiprocessing. Is 32 bit and no reliance
on DOS. It is rumored to have an integrated file and program manager.
DOS 7 is rumored to be similar to Chicago but without the GUI. Is also
a step towards CAIRO (the next generation OS) which is rumored to be
object oriented.
I wonder where Windows 4.0 fits here is it a stepping stone to Chicago?
Hope this helps.
Thx Dave L
From: wild@access.digex.com (wildstrom)
Subject: Re: Win NT - what is it???
Organization: Express Access Online Communications, Greenbelt, MD USA
Lines: 21
NNTP-Posting-Host: access.digex.net
rmohns@vax.clarku.edu writes:
>Chicogo is what I want to use.  It is, like NT, a true OS with thrue
>multitasking and multithreading, but has much smaller hardware requirements,
>and does not meet DOD security specs (but that's okay since it will probably
>be more of a client OS).  there are a few otehr differences, but those are the
>main ones.  There was an article about Chicogo in PC Week last August.
>	The Chicogo and NT development groups at Micro$oft are in intense
>competition, so it is said.  However, I think a different relationship will
>arise: NT will be the server (*N*etowrk *T*echonology), Chicogo will be the
>client machine.  It is entirely possible for different OS's to work together,
>partly because Chicogo is just a small NT (think of it that way, anyway).
>(Novell Netware creates an OS on the server that is truly not DOS, so don't
>scorn the concept.)
>	Anyway, don't expect it soon.  Windows 4 and DOS 7 are supposed to be
>released next year (read: see it in 95), so I expect that Chicogo won't be out
>til '96.
How does Chicago differ from the (sort of) announced Windows 4. My understand-
ing, at least from the InbfoWorld accound of Windows 4 is that it's sort
of NT Lite--a full-fledged operating system but lacking server and security
features that make NT such a bear. Is W4 not true multithreading?
From: wild@access.digex.com (wildstrom)
Subject: Re: Procomm Plus for windows problems....
Organization: Express Access Online Communications, Greenbelt, MD USA
Lines: 16
NNTP-Posting-Host: access.digex.net
kentiler@matt.ksu.ksu.edu (Kent P. Iler) writes:
>Hi,
>  I have normal procomm plus for dos, but I've been considering buying
>the windows version....it got really great reviews in computer shopper.
>I have a friend who connects to the mainframe and unix machines here
>using it, but the screen seems to have a problem keeping up with the
>modem....he has a 14,400 modem on a 486 50 Mhz machine.  I can't
>see it having trouble keeping up.  His pcplus for dos works great,
>but the windows just seems to always screw up....Is this common
>and is there a fix?  Or is something just screwed with his machine?
>					Kent
I have no trouble running Procomm for Windows at 14.4 v.42 on a considerably
slower 486sx. Could be a video problem but only if he has incredibly slow
video.
From: gcook@horus.cem.msu.EDU (Greg Cook)
Subject: Re: WORD 2.0 HELP!
Organization: Michigan State University
Lines: 12
NNTP-Posting-Host: horus.cem.msu.edu
From article <0096B11B.08A283A0@vms.csd.mu.edu>, by 2a42dubinski@vms.csd.mu.edu:
> Can anyone tell me if and how they have printed Spanish characters?  I know WP 5.1 has this built-in, but I do not recall ever seeing this option on WFW2.  HELP!
Try using the extended character set  (Alt-####  sequences) . .
look in Character Map in the Accessories group and see the alt-sequence
for the font you want!
Gregory R. Cook         |  INTERNET:    gcook@horus.cem.msu.edu
Department of Chemistry     |               cookgreg@student.msu.edu
Michigan State University    |               cook@cemvax.cem.msu.edu
East Lansing, MI  48824     |  BITNET:      cook@msucem.BITNET
From: dmmatt@cajun
Subject: Re: Need Windows-logo
Lines: 19
Organization: Monsanto Company
In article <1qjqed$1ft@access.digex.net>, holland@access.digex.com (Brian Holland) writes:
> Markus Maier (S_MAIER_M@rzmain.rz.uni-ulm.de) wrote:
> : Hi,
>
> : Well I'm searching for the Ms-Windows logo, u know the picture when u
> : start Windows, in some suitable grafics-format, like gif or jpg,...
>
> C:\windows\system\vgalogo.rle.  If my memory serves me correctly,
> *.rle is a compressed *.bmp format.
>
An is readable by WinGif, Paintshop Pro, Paint, and god knows how
many other programs.
--
Mike Mattix
Agricultural Group of Monsanto
P.O. Box 174
Luling, LA 70070
INTERNET Address: dmmatt@bigez.monsanto.com
From: dewinter@prl.philips.nl (Rob de Winter)
Subject: WANTED: Symantec address
Originator: dewinter@prl.philips.nl
Organization: Philips Research Laboratories, Eindhoven, The Netherlands
Lines: 5
--
*** Nothing beats skiing, if you want to have real fun during holidays. ***
***       Rob de Winter  Philips Research, IST/IT, Building WL-1        ***
***       P.O. Box 80000, 5600 JA  Eindhoven. The Netherlands           ***
***       Tel: +31 40 743621  E-mail: dewinter@prl.philips.nl           ***
From: dewinter@prl.philips.nl (Rob de Winter)
Subject: WANTED: Address SYMANTEC
Originator: dewinter@prl.philips.nl
Organization: Philips Research Laboratories, Eindhoven, The Netherlands
Lines: 17
I am looking for the exact address of the Symantec Coporatoin, which
distributes Norton Desktop and other Windows software.
The information I am looking for is:
Mail address
Phone number
Fax number
E-mail address
Thanks in advance.
--
*** Nothing beats skiing, if you want to have real fun during holidays. ***
***       Rob de Winter  Philips Research, IST/IT, Building WL-1        ***
***       P.O. Box 80000, 5600 JA  Eindhoven. The Netherlands           ***
***       Tel: +31 40 743621  E-mail: dewinter@prl.philips.nl           ***
From: moore@email.ncsc.navy.mil (Jim Moore)
Subject: RE: Can I Change ""Licensed To"" Data in Windows 3.1?
Organization: Coastal Systems Station
Lines: 27
In article <16APR93.02280936@vax.clarku.edu> rmohns@vax.clarku.edu writes:
>This is in relation to a question concerning changing the registered to:
>information of MS-Windows...
>
>In a previous article, 2a42dubinski@vms.csd.mu.edu wrote:
>>
>>	ahh, yes, this is a fun topic.  No, once the name is incribed on the
>>disk, that is it, it is encoded.  Not even a HEX editor will find it.  You can
>>write over the "Licensed to:", but you can't change the name underneth it.  I
>
>I can find it with a HEX editor, although I have not tried to overwrite it.
>Are you sure it can't be?  You may be mistaken about this. (???)
You can change it. As part of a continuously downsizing Government
organization, my code (branch) changes about once a year. I just
finished changing the registration information using Norton Utilities.
I sent the original requester the hex offset into USER.EXE containing
the information, and his reply indicated he got several similar answers.
And it's not encoded in any way. As for the legality, there's nothing
that keeps me from changing the information; it certainly doesn't reach
out and alter the serial number printed on the inside of my manual.
--
Jim Moore
Panama City, FL
From: colburn@caesar (alex colburn)
Subject: Re: GUI Application Frameworks for Windows ??
Nntp-Posting-Host: caesar.iaf.uiowa.edu
Organization: University of Iowa, Image Analysis Facility
Lines: 38
In article <1993Apr12.154418.14463@cimlinc.uucp> bharper@cimlinc.uucp (Brett Harper) writes:
>Hello,
>
>  I'm investigating the purchase of an Object Oriented Application Framework.  I have
>come across a few that look good:
>Zinc
>----
>  Has a platform independent resource strategy.  (Not too important for me right now)
>
>
>brett.harper@cimlinc.com
Just a thought on resources,  It is very important if you do use a
multiplatform toolkit to check on how it uses resources.  I have
used Glockenspeil commonview under Motif and OS2.  I wrote a resource
converter from OS2 to Motif, but it really wasn't too easy, especially
the naming scheme. In Motif you cannot rename controls/widgets.
With windows you can call the OK button ID_OK in every instance,
this doesn't work for Motif, you'd have to call it Dialog1_OK,
and Motif expects a text string rather than a number.  So
your constructor should know how to convert a #define into the
proper resource identifier.
I'd check on how the toolkit expects names, and that if it does
use resources, that is uses resources for all platforms you intend to
port to. ( By the way, I would never use CommonView or Glockenspiel
for anything )
Alex.
--
__  __|       \      __|       Alex Colburn
|       /   \    |          Image Analysis Facility
|      _____ \   __|	       University of Iowa
______| _/      _\ _|          colburn@tessa.iaf.uiowa.edu
From: rda771v@monu6.cc.monash.edu.au (A.B. Wuysang)
Subject: Re: Hercules Graphite?
Organization: Monash University, Melb., Australia.
Lines: 22
In article <C5JBKF.9B8@usenet.ucs.indiana.edu> ntaib@silver.ucs.indiana.edu (Iskandar Taib) writes:
>In article <1993Apr06.185638.12139@metrics.com> tomh@metrics.com (Tom Haapanen) writes:
>
>>Has anyone used a Hercules Graphite adapter?  It looks good on paper, and
>>Steve Gibson gave it a very good review in Infoworld.  I'd love to get a
>>real-world impression, though -- how is the speed?  Drivers?  Support?
>
>The PC World reviewers found out that the Herc people had hard-coded
>Winbench text into the driver. Clever, no? In any case, the Winbench
>results are pretty much inflated.
But the impressive performance of the Graphite was
not its Winmark, it was its Wintach result (esp. the paint
performance). Judging from the Wintach tests, I can hardly
imagine that there is a cheat driver for it.
+---------------------------------------------------+
| Agus Budy Wuysang                                 |
| Digitech Student                                  |
| Monash University (Clayton)                       |
| Melbourne, Australia                              |
+---------------------------------------------------+
From: dabl2@nlm.nih.gov (Don A.B. Lindbergh)
Subject: Re: Diamond SS24X, Win 3.1, Mouse cursor
Organization: National Library of Medicine
Lines: 21
In article <1993Apr15.204845.24939@nlm.nih.gov> dabl2@nlm.nih.gov (Don A.B. Lindbergh) writes:
>
>Anybody seen mouse cursor distortion running the Diamond 1024x768x256 driver?
>Sorry, don't know the version of the driver (no indication in the menus) but it's a recently
>delivered Gateway system.  Am going to try the latest drivers from Diamond BBS but wondered
>if anyone else had seen this.
>
As a followup, this is a co-worker's machine.  He has the latest 2.03 drivers.
It only happens using the 1024x768x256 driver.  Sometimes it takes a minute
or so for the cursor to wig out, but it eventually does in this mode.  I
susect something is stepping on memory the video card wants.  I excluded
a000-c7ff in the EMM386 line and in system.ini  The problem persisted.
Perhaps it is something specific to the Gateway machine or it's components.
It is a 66mhz DX/2 Eisa bus with an Ultrastore (24xx?) controller.  Ah well,
I was hoping this was some kind of 'known problem' or somebody had seen it
before.  Perhaps a call to Gateway is in order, but I do find folks here
usually are far more in the know.
--Don Lindbergh
dabl2@lhc.nlm.nih.gov
From: bca@ece.cmu.edu (Brian C. Anderson)
Subject: Re: Win NT - what is it???
Originator: bca@packard.ece.cmu.edu
Lines: 11
Reply-To: bca@ece.cmu.edu (Brian C. Anderson)
Organization: Electrical and Computer Engineering, Carnegie Mellon
Distribution: cmu
In article <1qmc7e$g1b@access.digex.net>, wild@access.digex.com (wildstrom) writes:
|> From: wild@access.digex.com (wildstrom)
|> Subject: Re: Win NT - what is it???
|> Date: 16 Apr 1993 09:27:10 -0400
//// Much stuff deleted //////
What is Win32?  I upgraded to Mathcad 4.0 and it installed a directory for
Win32 under \windows\system .  During the upgrade it told me that win32 was
required.
From: eialbur@sgies9.sdrc.com (Ron Albury)
Subject: Re: Procomm Plus for windows problems....
Organization: SDRC
Lines: 14
You have a lot more problems keeping up with hardware interrupts in Windows than
in DOS - regardless of what communication software you are using.
Try the following:
1) Turn off disk write cache for the disk you are downloading to.  The
cache will save up so much that when it grabs control of the machine
it takes too long to write to disk and you loose characters.
2) Use a different UART for your serial line.  The old UART's (8250 or 16450)
can only buffer one character internally.  The new UART's (16550) can
buffer 16, which should be plenty for most situations.  You can run
\windows\msd.exe to find out what UART is on the machine.
Ron
From: rick@silver.SJSU.EDU (Richard Warner)
Subject: Re: Win NT - what is it???
Nntp-Posting-Host: silver.sjsu.edu
Organization: San Jose State University - Math/CS Dept.
Lines: 12
rmohns@vax.clarku.edu writes:
>Windows NT is a giant Windows Operating System.  Unline Win3.1, it does not
>run on top of DOS.  It is its own OS, with (Billy Gates assures us) true
>multi-tasking/multithreading, meets DOD security specs, will run win3.1
>programs as well as DOS programs, has multi-processor support, and is
>primarily a Server program.  It's overhead is too high for it to be
>economical for most users.
Correction:  All Billy is promising is that it will run 'most' Windows 3.1
programs and the 'major' DOS programs.  Do not expect everything you
have to run under NT unless all you have are current MS apps.
From: cl238405@ulkyvx.louisville.edu (Steve W Brewer)
Subject: How do I make GhostScript work?
Lines: 12
Nntp-Posting-Host: ulkyvx.louisville.edu
Organization: University of Louisville
What files do I need to download for GhostScript 2.5.2?  I have never used
GhostScript before, so I don't have any files for it.  What I *do* have is
gs252win.zip, which I downloaded from Cica.  Unfortunately, it doesn't seem to
work on it's own, but needs some more files that I don't have.  I want to run
GhostScript both in Windows 3.1 and in MS-DOS on a 386 PC (I understand there's
versions for both environments).  What are all the files I need to download and
where can I get them?  Any info would be appeciated.
--------------------------------------------------------------------------------
Steve W Brewer                                                rewerB W evetS
cl238405@ulkyvx.louisville.edu                ude.ellivsiuol.xvyklu@504832lc
--------------------------------------------------------------------------------
From: ebosco@us.oracle.com (Eric Bosco)
Subject: Windows 3.1 keeps crashing: Please HELP
Nntp-Posting-Host: monica.us.oracle.com
Reply-To: ebosco@us.oracle.com
Organization: Oracle Corp., Redwood Shores CA
X-Disclaimer: This message was written by an unauthenticated user
at Oracle Corporation.  The opinions expressed are those
of the user and not necessarily those of Oracle.
Lines: 41
As the subjects says, Windows 3.1 keeps crashing (givinh me GPF) on me of
late.  It was never a very stable package, but now it seems to crash every
day.  The worst part about it is that it does not crash consistently: ie I
can't reproduce crashes, and they are not always GPF's in the same
application. Sometimes I can recover by simply closing the application
that caused an error, but other times, windows acts very strange, and I
need to re-boot.
Some background:  I have a Leading Edge 486sx25 with Phoenix BIOS.  When I
first got it it had 4Mg of memory.  It ran windows fine (not too many
GPF's).  Then, a couple of weekends ago, I installed Lotus 123 for windows
(with ATM), a game card and an additional 4  1Mg SIMMS.  The Leading edge
machine is kind of strange, in that it has the IDE controler built into
the motherboard, the CPU is actually on a sparate board that plugs into
the motherboard and the SIMMS it uses are Macintosh SIMMS! Apparently I
was told that the Leading Edge had the parity bit built into the mother
board.  The original 4Mg 80ns SIMMS where of the 2 chip variety from
SAMSUNG, and the ones I installed are 8 chip SIMMS. They are recognized
fine by the BIOS RAM check. The game card is a generic $20 gamecard.
The reason why I mention the hardware like this is that sometimes
rebooting the machine using the reset button or ctl-alt-del still leaves
the machine kind of flaky, but turning it on and off doesn't.
I haven't tried taking out the RAM or the game card, because as I said
these GPF are not reproducible at will.  I have gone through and entire
day using the computer with no problems and then I might get 5 or so GPF's
in the sppace of 20 minutes?
What can I do.  This situation is most annoying... Are there any good
diagnostic tools for hardware? Do you think that this might be a software
problem (ie EMM386 etc.)? If it helps, i have manage to get GPF's on After
Dark, quicken, Paint shop pro. A lot of them have been in user.exe or
gdi.exe.
Any help is truly appreciated.....
-Eric
ebosco@us.oracle.com
From: dgf1@ellis.uchicago.edu (david  farley)
Subject: Re: Permanaent Swap File with DOS 6.0 dbldisk
Reply-To: dgf1@midway.uchicago.edu
Organization: University of Chicago
Lines: 35
(stuff deleted)
>
>Be that what it may, I would really suggest to everyone to take the
>opportunity to go to these Technical Workshops.  They aren't actually
>incredibly in-depth, but you do get a lot of material about bugs and
>optimization straight from those in the know.  Besides that they offer
>you HUGE discounts on software.  If I remember correctly, you could pick
>up Word 2.0, Excel 4.0, or whatever their presentation program is for $130.
>That is the full blown version, not an upgrade or educational version. You
>could also pick up Microsoft Office for $500 or something like that.  Myself
>I sprang for Word.
The value of these workshops aside, you ought to be able to buy full copies
of all this software through your campus bookstore or software distributor
at these rates.  I'm not aware that the educational version of Word or Excel
is doped down in any way.
>
>Well, hope that was helpful to someone.  And besides that I hope someone
>will go to a workshop and save a little money.
>
>And if anyone at Microsoft is reading this -- I really love your products.
>I need a job once I graduate also, can we work something out?  ;-)
>
>Thanks,
>Brent Casavant
>bcasavan@mailhost.ecn.uoknor.edu
>
--
David Farley                           The University of Chicago Library
312 702-3426                              1100 East 57th Street, JRL-210
dgf1@midway.uchicago.edu                         Chicago, Illinois 60637
From: mlipsie@rdm09.std.com (Mike Lipsie MPU)
Subject: Re: Permanent Swap File
Organization: Mitsubishi Electric Research Laboratories, Inc.
Lines: 26
In article <1qlja7$i6b@usenet.INS.CWRU.Edu> ak333@cleveland.Freenet.Edu (Martin Linsenbigler) writes:
>>
>When I first setup windows using the self load mode It grabbed about
>20 megs of swap file space, my 120 meg HD was nearly empty at that time.
>I deleted windows for a time and recently reloaded, now my HD is nearly full
>and windows just took 4 megs.
One of the rules for a permanent swap file is that it must be contiguous
(non-fragmented) space.  I suspect that is more responsible for the
difference than the amount of free disk, in your case.
>I have read somewhere that the best rule of thumb is have your
>permanent swap file the same size as your regular RAM size.  I have 4 megs
>of RAM and windows took 4 meg perm swap file.  Works very well.
>In fact with my available HD space, about 20 megs it won't let me make
>the swap file any bigger.
>You should change your virtual mem swap file to 8 megs I think
>that is what you said your RAM was.
It depends on what you are running.  We had to increase our swap
file (I think it is now 20MB) when some applications couldn't
run without *everything* else closed.
--
Mike Lipsie                                (work) mlipsie@ca.merl.com
Mitsubishi Electronic Research Laboratory  (home) mikel@dosbears.UUCP
From: lam@mrcnext.cso.uiuc.edu (Ken Lam)
Subject: Re: WANTED: Address SYMANTEC
Reply-To: lam@jove.cofc.edu
Organization: University of Illinois at Urbana
Lines: 27
dewinter@prl.philips.nl (Rob de Winter) writes:
>I am looking for the exact address of the Symantec Coporatoin, which
>distributes Norton Desktop and other Windows software.
>
>The information I am looking for is:
>
>Mail address
>Phone number
>Fax number
>E-mail address
Try postmaster@norton.com
or postmaster@symantec.com
>
>Thanks in advance.
>
>--
>*** Nothing beats skiing, if you want to have real fun during holidays. ***
>***       Rob de Winter  Philips Research, IST/IT, Building WL-1        ***
>***       P.O. Box 80000, 5600 JA  Eindhoven. The Netherlands           ***
>***       Tel: +31 40 743621  E-mail: dewinter@prl.philips.nl           ***
--
---
Ken Lam
Network Administrator @ University of Charleston / Dept of Biology & Geology
S.C. Space Grant Consortium              (803)-792-4969 / FAX (803)-792-5446
From: cl238405@ulkyvx.louisville.edu (Steve W Brewer)
Subject: How do I make GhostScript work?
Organization: University of Louisville
Apparently-To: gnu-ghostscript-bug@rutgers.edu
Distribution: world
Lines: 14
What files do I need to download for GhostScript 2.5.2?  I have never used
GhostScript before, so I don't have any files for it.  What I *do* have is
gs252win.zip, which I downloaded from Cica.  Unfortunately, it doesn't seem to
work on it's own, but needs some more files that I don't have.  I want to run
GhostScript both in Windows 3.1 and in MS-DOS on a 386 PC (I understand there's
versions for both environments).  What are all the files I need to download and
where can I get them?  Any info would be appeciated.
--------------------------------------------------------------------------------
Steve W Brewer                                                rewerB W evetS
cl238405@ulkyvx.louisville.edu                ude.ellivsiuol.xvyklu@504832lc
--------------------------------------------------------------------------------
From: wong@cs.tu-berlin.de (Wolfgang Jung)
Subject: Cirrus Logic 5426 Graph Card
Organization: Technical University of Berlin, Germany
Lines: 23
NNTP-Posting-Host: athene.cs.tu-berlin.de
Mime-Version: 1.0
Content-Type: text/plain; charset=iso-8859-1
Content-Transfer-Encoding: 8bit
X-Newsreader: TIN [version 1.1 PL8]
After setting up Windows for using my Cirrus Logic 5426 VLB GraphicsCard
It moved a normal Window from one place to another.
My Parameters where just the following : 486 DX 33 VLB
The Card is equipped with 1 MB Dram (not Vram, there are 8 sockets for Vram)
And the moving of the window just looked like it looked at a friends
386DX 25 (387DX) and an normal ISA ET4000
What I was wondering why is it not using the BITBLT  Engine which
is suuposed to be on the Chip.
How are the experiences here..
Have I done something wrong ?
(I installed the MSWIN 3.1 MultiResolution drivers which where supplied
with the Card ?!)
Would be nice if somebody could tell about his experience with this card
Also if there are new(hopefully faster) drrivers around I would love to
how to get hold of them :-) (ftp or whatsoever :-) )
Gruss
Wolfgang
From: rjn@teal.csn.org (Robert J. Niland)
Subject: Re: Procomm Plus for windows problems....
Nntp-Posting-Host: teal.csn.org
Organization: Colorado SuperNet, Inc.
X-Newsreader: Tin 1.1 PL4
Lines: 292
kentiler@matt.ksu.ksu.edu (Kent P. Iler) writes:
:   I have normal procomm plus for dos, but I've been considering buying
: the windows version....it got really great reviews in computer shopper.
: I have a friend who connects to the mainframe and unix machines here
: using it, but the screen seems to have a problem keeping up with the
: modem....he has a 14,400 modem on a 486 50 Mhz machine.  I can't
: see it having trouble keeping up.  His pcplus for dos works great,
re: What to do after the high speed modem arrives.       Edition 01 Apr 93
This article applies only to Windows 3.0 and 3.1, and not to NT, OS/2
or DOS apps not running under Windows.
One of the unadvertised limitations of most current Windows PCs is that
their RS-232C (serial, COM) performance is seriously deficient.  Almost
everyone who purchases a high-speed modem (V.32bis, V.32, PEP or HST)
discovers the problem the first time they try to download a file or accept
an incoming FAX (at 9600+) after upgrading the modem.  Overrun and retry
errors abound, even when the only active application is the datacomm or
FAX program.  If the transfer completes at all, it may take even longer
than with the old 2400bps modem.
There are three reasons for the problem:
1. The Universal Asynchronous Receiver/Transmitters (UARTs) used in most
PCs are primitive Ns8250 devices with single-byte FIFO buffers.  If the
operating system/driver cannot read and flush each character at high
interrupt rates, the next incoming character overwrites the FIFO and
the previous one is lost.  DOS, being a fairly single-minded
environment during datacomm, can usually keep up. Windows can't.
2. Windows has more operating system overhead than plain DOS, and
interrupts often take longer to service.  Overruns are much more likely
than under DOS.  As soon as you report to your PC/modem vendor that you
are losing data, you may be advised that "you need to upgrade to a
16550". More likely, since there seems to be a conspiracy of ignorance
about this issue,  you'll get no useful advice at all.  Most of the
store-front and mail-order sources I spoke with in attempting to solve
my own problem had never heard the term "16550" and many didn't even
know what a UART was.
3. Even your PC has Ns16550A UARTs (and PS/2's do), or if you can upgrade
your mother/COM board or add a new COM board, you may STILL experience
errors and overruns because the standard MicroSoft Windows COM drivers
don't take full advantage of the 16550.  Windows 3.1 is improved in this
regard over 3.0, but I still recommend a driver upgrade.  Applications
like ProComm+/Win (which is what I use) cannot get around this problem
by themselves.
If you have a modem CARD, you may not have a problem, as the modem part of
the card can be designed to be aware of the state of the UART, and avoid
overrunning it; however, I wouldn't want to bet that the card designers
were that clever, and will insist on a 16550 UART if I ever buy a modem
card.  Some modem cards don't even have conventional UARTs, but if they
are to work with standard Windows drivers, they need to simulate one.
Use MSD.EXE (below) to see what the modem card is, or is pretending to be.
The Hardware Situation.
The UARTs on most PC COM ports are based on National Semiconductor Ns8250
or Ns16450 chips (or megacells inside VLSI chips where you can't replace
them).  You can ID the UART type on your system by running the MicroSoft
diagnostic program \WINDOWS\MSD.EXE.  Be sure to run it in DOS *before*
bringing up Windows.   The Windows serial API may prevent MSD from
accurately identifying a 16550 if you run it from a Windows DOS prompt.
The Ns16550 UART has separate 16-byte transmit and receive FIFOs with
configurable trigger levels, and can run reliably at clock rates up to
460,800 bps, although with current modem technology, there's no point in
pushing your luck by going over 115,200 bps. The 16550 has shorted access
cycle times than the 16450 or 8250.  The 16550 also has DMA capability, but
it is not clear that any PC drivers ever use this.  For more technical info,
see National Semiconductor Application Note AN-491.
So, what UART component do you have?
Try to locate the UART on your mother board, multi-function I/O card, COM
board or ISA/MCA modem card.  If you can't find a socketed component with
the numbers "8250" or "16450", your COM ports are probably buried in VLSI,
and you won't be able to perform a chip replacement.  If you can DISABLE
your VLSI COM ports (as I chose to do), you can at least add an aftermarket
COM board.
If you have one or more socketed 8250 or 16450 chips, you can buy plug-in
Ns16550AFN or PC16C550CN (low power CMOS version) ICs from several
suppliers typically for $9 to $15 each.  The "N" chip is the normal 40-pin
dual-in-line package.  Other styles are available, but avoid any Ns16550
chips without the "A" (the 16C550C are presumably all OK).
Early Ns chips have bugs, although National will reportedly exchange those
of their own manufacture for free.  Clone chips are available from various
IC makers other than National.  The manual for the TurboCom drivers states
support for the following (apparently equivalent) chips:
National Semiconductor: 16550A, 16551, 16552
Chips&Technology:       82C607
Texas Instruments:      t16c550a
Silicon Systems:        73M550
VLSI                    16C550
TurboCom warns about the pre-"A" Ns16550 and Western Digital 16C550,
says that problems have been reported with early IBM PS/2 55SX and 70
systems (IBM reportedly will upgrade them).
If you DON'T have socketed 8250/16450 chips, you'll need to buy an after-
market COM or multi-function board. If this is a modem card situation, you
may be hosed. To add a new COM or multi-function card, you'll need to
either disable the COM1/2 port(s) you are replacing, or re-assign them to
COM3/4 (although watch out for IRQ conflicts without TurboCom).
Although cheaper cards are available, in the interest of getting the
problem solved quickly I elected buy the Modular Circuit Technology
MCT-AIO+ card from:
JDR Microdevices
2233 Samaritan Drive
San Jose  CA  95124
(800) 538-5000 voice US
(408) 559-1200 voice other
(800) 538-5005 FAX US
The MCT-AIO+ (and the "+" is important) sells for $89.95.  It is an 8-bit
ISA card providing:
Port Type  Connector  Address and IRQ        Comments
COM        DB9M       COM 1,2,3 IRQ 2,3,4,5  Ns16550AFN in socket
COM        ribbon     COM 2,3,4 IRQ 2,3,4,5  Ns16550AFN in socket
Parallel   DB25F      LPT1,2,3  IRQ 5,7
Game       ribbon
The kit includes a ribbon cable and DB25F connector for the secondary COM
port, a ribbon cable/connector for the game port, two bulkhead plates for
the ribbon-based connectors and a 9F-to-25F adaptor cable.  Each port can
be individually disabled, and the COM ports have TX, RX, RTS, CTS, DTR,
DCD, and DSR jumpers.
JDR also sells a Super-I/O m-f card that also has IDE.
I have heard from several people about less expensive m-f I/O cards
with 16550s:
TSD Systems
(407) 331-9130
$19.95 for the card, plus $9.95 per 16550.
Greenfield Trading and Distributors
(518) 271-2473 (voice), (518) 271-7811(FAX).
Their card is $33 w/one 16550, $45 w/2, and they sell 16550AFNs for $13.
R&S DATA SYSTEMS, INC.
820 East Highway 434
Longwood, FL  32750
PHONE: (407) 331-1424
FAX: (407) 331-8606
2COM/LPT/Game card w/2 16550s for $39
I have no personal experience with any of the firms except JDR.
Meanwhile, back at the MCT card from JDR... I only needed two serial ports,
and am running out of IRQs on my PC, so I disabled my built-in VLSI-based
8250 ports. However, with the TurboCom driver (below), I could have set
the internals as COM3 and 4, using IRQ sharing.
The Software Situation
Simply upgrading to 16550 UARTs will not completely solve common overrun
problems.  The standard MS serial drivers don't take full advantage of the
16550. The Windows 3.0 drivers are even less capable, and the Windows 3.1
drivers have the following limitations:
- They enable only the receive FIFO, and only at rates above 2400 bps.
- They never enable the transmit FIFO, which  results in an interrupt
rate of 10x during uploads.
- They set the trigger level at 14 bytes (too high - it's easy for 2
more bytes to arrive before the driver can read the FIFO).
- The Ports menu of the Control Panel only allows speeds up to 19200.
With a V.32bis modem,  sparse data and text can easily compress 3:1
or more, suggesting that a host DTE connect rate of 57,600 bps would
be effective.
- The API won't accept rates above "CBR_128000".
- The API won't let DOS programs know there is a 16550 there, and even
if it did, DOS programs that aren't 16550-aware get little benefit
from a 16550 port with the standard drivers.
- They don't allow IRQ sharing for COM3,4.
- The BIOS doesn't initialize COM3,4 properly in many systems.
- Windows provides no workaround for apps that don't provide port
speed options above 19200 bps.
These problems are reportedly NOT solved in Windows NT or DOS 6.0, and may
or may not be addressed in any Windows releases after 3.1 (but before 4.0).
Rumors suggest they "may" be solved in Windows "4.0".
You can get replacement drivers that solve all of those problems by buying
a copy of "TurboCom", current version 1.2, from:
Bio-Engineering Research
Pacific CommWare Division
180 Beacon Hill Lane
Ashland  OR   97520-9701
(503) 482-2744 voice
(503) 482-2627 FAX
(503) 482-2633 BBS
MCImail:    344-5374
CompuServe: 71521,760
Price was around $50 as I recall.  Bio-Eng is not set up to accept credit
cards, so I had to send a check.  Egghead and 1-800-Software list TurboCom
but as far as I know, they don't stock it.  Bio is not a software company
per se.  They apparently needed reliable hi-speed serial connections for
an in-house instrument application, wrote their own driver, discovered a
market for it, revised it to be a general purpose COM driver suite. They
recently upgraded it for Windows 3.1.  It is run-time licensed.
I now have my host (DTE) connect rate set to 57,600 bps most of  my
datacomm apps, and I am having ZERO problems with downloads. I routinely
see transfer rates that exceed 2,000 bps. I am also using 115,200 bps
when linking an HP95LX to my PC, with lossless bi-directional I/O.
Uploads to various remote systems are another matter, because many hosts
are still using antique UARTs and drivers.
Note that 19200 is still the highest rate that the Windows 3.1 Port menu
in Control Panel will allow in configuring a COM port.  TurboCom gets
around this by allowing you to specify, on each port, a factor that will
set the real UART rate to a multiple of the rate passed through the
Windows APIs and dialog boxes.
I also have CTS/RTS hardware flow control enabled, and I suggest that you
do the same.  Even if you only ever transfer 7-bit ASCII data, Xon/XOff is
not a sufficiently reliable method of flow control.  The informal (DEC)
standard for Xon/Xoff hysteresis is that the sender may transmit another
16 (yes, sixteen) bytes after receipt of the Xoff from the receiving
system or device.  The 16 byte FIFO in the 16550 is clearly not big enough
to let us rely exclusively on Xon/Xoff.  A well-respected datacomm
engineer has informed me that the 16550's can't really do CTS/RTS all
by itself in the DOS/Windows environment, so using data rates above
115,200 may still be risky.
Even with hardware flow control, a 16550 with TurboCom can still
experience overruns in very busy systems, with lots of apps running and
serious swapping in progress. If this is your situation, you may need to
buy a co-processed COM board, but this will cost you more than a
16550/TurboCom upgrade.  A review of two such boards, and a review of
TurboCom, can be found in the Feb'93 issue of "Windows Sources" magazine.
I suggest trying a 16550/TurboCom upgrade first, and experiment with
process priorities and time slices if you are a "power user" whose
thrashing system still runs into comm problems.
Closing Soapbox Comments
The state of RS-232C serial datacomm support is an embarrassment across
the computer industry.  Because it is the oldest standard I/O interface,
the job of designing hardware and writing software often seems to be
assigned to the least senior or lowest ranked engineers at computer
companies.  The design of the average serial port is at least ten years
behind the state of the art. In my last job, with a major workstation
vendor, I lobbied for improved serial ports when they were doing the
initial designs of a new system.  That family of machines was
subsequently introduced with 16550 ports.  However, this is the
exception.  Few computer companies seem to have any champions for decent
I/O.
You may as well learn what you can about serial I/O, because this
situation shows no sign of improving soon.  When V.FAST arrives, I expect
cries of outrage from Windows users world-wide whose 8250 PCs "sort of"
work today with V.32, but will fail miserably with V.FAST.  Without a
hardware-buffered UART (like the 16550) and without software drivers that
use that UART to best advantage, a V.FAST modem will be a waste of money.
Regards,                                          1001-A East Harmony Road
Bob Niland                                        Suite 503
Internet:  rjn@csn.org                            Fort Collins CO 80525
CompuServe: 71044,2124                            (303) 223-5209
Copyright 1993 Robert J. Niland
All Rights Reserved
Permission is granted for automatic redistribution of this article, via
electronic, magnetic and optical media, in an unedited form, through any
Usenet newsgroup where the article is posted by the author.  Permission
is granted for each CompuServe and Usenet reader subscriber and each
person who received this article from Compuserve, an ftp site authorized
by the author or via electronic mail from the author, to retain one
electronic copy and to make hardcopy reproductions of this edition of
this article for personal non-commercial use, provided that no material
changes are made to the article or this copyright statement. All other
copying, storage, reproduction or redistribution of this article, in
any form, is prohibited without the express written consent of the
author,  Robert J. Niland.
EOF
From: ytkuo@hal.gnu.ai.mit.edu (Eugene Y. Kuo)
Subject: Any updated Canon BJ-200 driver
Organization: dis
Lines: 7
Distribution: world
NNTP-Posting-Host: hal.ai.mit.edu
Hi ... can anyone tell me where I can get a copy of updated Canon BJ-200
printer driver for Windows 3.1, if any ? I have ver 1.0 which comes with
my BJ-200 printer, I just wonder if there is any newer version.
Thanks very much, please email.
From: absgh@gdr.bath.ac.uk (G Hunt)
Subject: Windows for WorkGroups and LAN Workplace
Organization: School of Architecture, University of Bath, UK
Lines: 19
This may be a simple question but:
We have a number of PC's which we use to link to a mainframe using
Novell LAN WorkPlace for DOS (via WIndows 3.1).
Now, to make life easier for us we are thinking of using Windows for
Workgroups to allow file sharing across our PC network.
Now does anyone know if it is possible to use W4WG and Lan Workplace
for DOS at the same time.
ie Can I access a file on another PC while being logged on to the
mainframe at the same time, simultaneously.
Any help well appreciated.
Gary Hunt.
Centre for Advanced Studies in Architecture
University of Bath
absgh@gdr.bath.ac.uk
From: 2a42dubinski@vms.csd.mu.edu
Subject: Re: WORD 2.0 HELP!
Organization: Marquette University - Computer Services
Lines: 17
Reply-To: 2a42dubinski@vms.csd.mu.edu
NNTP-Posting-Host: vmsa.csd.mu.edu
In article <1qmf6l$euh@msuinfo.cl.msu.edu>, gcook@horus.cem.msu.EDU (Greg Cook) writes:
>From article <0096B11B.08A283A0@vms.csd.mu.edu>, by 2a42dubinski@vms.csd.mu.edu:
>> Can anyone tell me if and how they have printed Spanish characters?  I know WP 5.1 has this built-in, but I do not recall ever seeing this option on WFW2.  HELP!
>
>Try using the extended character set  (Alt-####  sequences) . .
>look in Character Map in the Accessories group and see the alt-sequence
>for the font you want!
>
Thanks, I think I've figured it out now.
------------------------------------------------------------------------
| Robert S. Dubinski |  Aliases include:  Robb, Regal, Sir, Mr., and I |
------------------------------------------------------------------------
| Marquette University ||||||||||| Math / Computer Science Double-Major|
------------------------------------------------------------------------
| Internet Address: 2A42Dubinski.vms.csd.mu.edu  |	Milwaukee, WI    |
------------------------------------------------------------------------
From: 2a42dubinski@vms.csd.mu.edu
Subject: RE: Can I Change ""Licensed To"" Data in Windows 3.1?
Organization: Marquette University - Computer Services
Lines: 12
Reply-To: 2a42dubinski@vms.csd.mu.edu
NNTP-Posting-Host: vmsa.csd.mu.edu
Ok, then where is the info for the Licensing kept?  Which file?  In the
organization box I put my address, and when I moved, I wanted to change it, but
couldn't find it.  I could find my name, but not the organization.
------------------------------------------------------------------------
| Robert S. Dubinski |  Aliases include:  Robb, Regal, Sir, Mr., and I |
------------------------------------------------------------------------
| Marquette University ||||||||||| Math / Computer Science Double-Major|
------------------------------------------------------------------------
| Internet Address: 2A42Dubinski.vms.csd.mu.edu  |	Milwaukee, WI    |
------------------------------------------------------------------------
From: rmohns@vax.clarku.edu
Subject: RE: page setup in Notepad
Organization: Clark University
Lines: 29
In a previous article, JOEL@jach.hawaii.edu (Joel Aycock) wrote:
>
>	I struggled with the margin problem for ages as well, until I
>finally got hold of the shareware binary editor BEAV133, and dug into
>NOTEPAD.EXE (there is no SETUP facility to force NOTEPAD to default to
>0.0 margins- it's hardwired into code!!!).
>
>	Do a SEARCH for ".75", then change the offending bytes to ".00",
>et viola. Who are the guys who hardcode these "options" anyway?
>
>	I'm interested in whether the problem only rears it's ugly head for
>certain printers- I'm using an old Epson LX-800 (or is that EX-800? never can
>remember).
>
>aloha.
You are nto alone.  I get the same problems with my Panasonic kpx 1124i (24
pin).  Oterhwise, it's a great printer.  I just can't find a driver for it,
only for the non-"i" version.  Anyone seen it?
Rob
|------------------------------------------------------------|
\       rmohns@vax.clarku.edu       /
_________\                               /________
\         Rob Mohns         /
==================================================
Annoy Rush Limbaugh.  Think for yourself.
==================================================
From: rmohns@vax.clarku.edu
Subject: RE: Need Windows-logo
Organization: Clark University
Lines: 46
In a previous article, dmmatt@cajun wrote:
>In article <1qjqed$1ft@access.digex.net>, holland@access.digex.com (Brian Holland) writes:
>> Markus Maier (S_MAIER_M@rzmain.rz.uni-ulm.de) wrote:
>> : Hi,
>>
>> : Well I'm searching for the Ms-Windows logo, u know the picture when u
>> : start Windows, in some suitable grafics-format, like gif or jpg,...
>>
>> C:\windows\system\vgalogo.rle.  If my memory serves me correctly,
>> *.rle is a compressed *.bmp format.
>>
>  An is readable by WinGif, Paintshop Pro, Paint, and god knows how
>many other programs.
That isn't enough to change your Windows startup logo.  vgalogo.rle is not
needed after you have installed Windows.  It is incorporated as a part of
win.com.
To make a new win.com, you have to concatinate three files together,
using the /b option for a binary concatonation.  I beleive it is
copy /b win.cnf+vgalogo.lgo+vgalogo.rle mywin.com
Make sure you backup your win.com file in anotehr directory before you do this
-- I absent-mindedly typed win.com instead of mywin.com and had to resinstall
Windows!
Anyway, substitute whatever .RLE file you want.  The win.cnf has the
info needed to start Windows (think of it as a bootstrap) and vgalogo.vga has
video information.  Just make sure that the .RLE file doesn't tip the whole
COM file size over the 64k limit of a .COM file!
So anyway, I use mywin.com to startup MS Windows.  Now instead of that
annoying Micro$oft advertisment, I have the Joker (yes, from Batman) taking
yoru picture from the screen, saying "Smile!"  Also a little bit of text:
"Micro$oft Windows: The world's first commercially sucessful virus."  I added
that because of the frequency of crashes. <grin>
Rob
__   				   +------------------+
/  \ --		--===---	   |     a post by    |
\__/ ---------			   |     Rob Mohns    |
|      rmohns@     |
I had no water, so	   |  vax.clarku.edu  |
I drowned in sand.	   +------------------+
| |
\|/		           | |
__\\\|/____________|_______________\//___\\|_|/________\|/_________
From: yuting@Xenon.Stanford.EDU (Eugene Y. Kuo)
Subject: Any updated Canon BJ-200 driver?
Organization: Computer Science Department, Stanford University.
Lines: 8
Hi ... can anyone tell me where I can get a copy of updated Canon BJ-200
printer driver for Windows 3.1, if any ? I have ver 1.0 which comes with
my BJ-200 printer, I just wonder if there is any newer version.
Thanks very much, please email.
From: mogul@uclink.berkeley.edu (Bret Mogilefsky)
Subject: Re: Any good sound formats conversion program out there??
Organization: University of California, Berkeley
Lines: 34
NNTP-Posting-Host: uclink.berkeley.edu
In article <edd392h.733700028@mings2.cc.monash.edu.au> edd392h@mings2.cc.monash.edu.au (YWI. Li) writes:
>Hi all,
>
>Does anyone know if there is a good sound formats conversion program out
>
>there???  (Like PaintshopPro for picture formats conversion)
>
>Please send me a copy of your reply!!!
>
>thanks a lot
>
>Bel
>
Hi...
THe best sound conversion program I've ever seen is SoundTool, which
is shareware from Germany.  I found a copy somewhere in wuarchive.wustl.edu
a long time ago, but I don't know offhand what directory it was under.  It's
GREAT at converting files of all types, including Mac, NExT, Sun, and
various PC formats... It's also a great player and editor, with various
special effects that put Windows' Sound Recorder to shame.  It requires a
driver for various sound cards... The only builtin one is for the pc speaker
(and even that sounds pretty good), but if you're just using it to convert
things, you can convert them in SoundTool and then play them in Sound
Recorder.
Give it a try!
Bret
--
* "Why, that's the second    |  mogul@soda.berkeley.edu		*
*  biggest monkey head I've  |  mogul@ocf.berkeley.edu		*
*  ever seen!"  -Guybrush    |  mogul@uclink.berkeley.edu	*
From: mhembruc@tsegw.tse.com (Mattias Hembruch)
Subject: Re: Can I Change ""Licensed To"" Data in Windows 3.1?
Organization: Toronto Stock Exchange
Lines: 35
rmohns@vax.clarku.edu writes:
>This is in relation to a question concerning changing the registered to:
>information of MS-Windows...
>In a previous article, 2a42dubinski@vms.csd.mu.edu wrote:
>>
>>	ahh, yes, this is a fun topic.  No, once the name is incribed on the
>>disk, that is it, it is encoded.  Not even a HEX editor will find it.  You can
>>write over the "Licensed to:", but you can't change the name underneth it.  I
>I can find it with a HEX editor, although I have not tried to overwrite it.
>Are you sure it can't be?  You may be mistaken about this. (???)
>Rob
>rmohns@vax.clarku.edu
On a similar note, has anyone found out a way to do this with MS FoxPro for
Windows? My setup.ini file was modified on disk 1 (all encrypted).. Well,
of course I forgot about Microsoft's stupid arrangement when I got the
software, and used my name (it was paid for by the company I'm doing
consulting for. When my job is done, it's their software).. Any ideas before
I start doing dumb things to a copy of that file??
Mattias
ps NO - I don't want to pirate this software. I just want to avoid having
to buy a new copy in order to change the registration information and then
having a copy lying around I don't use...
maybe I can get a new disk 1...
--
Mattias Hembruch
>> My views do not necessarily reflect those of the TSE. <<
E-mail: mhembruc@tse.com
From: cmenzel@kbssun1.tamu.edu (Chris Menzel)
Subject: Re: Procomm Plus for windows problems....
Organization: Texas A&M University, College Station, TX
Lines: 25
NNTP-Posting-Host: kbssun1.tamu.edu
X-Newsreader: TIN [version 1.1 PL8]
Jeff Meyers (jmeyers@ecst.csuchico.edu) wrote:
: In article <1qkqrhINNobc@matt.ksu.ksu.edu> kentiler@matt.ksu.ksu.edu (Kent P. Iler) writes:
: .
: .
: >I have a friend who connects to the mainframe and unix machines here
: >using [Procomm Plus for Windows], but the screen seems to have a problem
: >keeping up with the
: >modem....he has a 14,400 modem on a 486 50 Mhz machine.
: Tell him he probably needs to upgrade to a faster video card!  My 9600 baud
: modem was one of the reasons I sought out the Diamond Speedstar 24X. I get
: about 7 million WinMarks on my 386-25 and it just about keeps up with the
: modem speed (using procomm plus for windows, too).  He should get over
: 10 million on his machine with the same card.  Anything 10+ should yield
: acceptable speed...
I'm using PC Plus at home on my trusty old NEC 386 SX/20 with a 14,400
baud modem with no problems at all.  I am, however, running only
straight 16 color VGA.
--
Christopher Menzel		    Internet -> cmenzel@tamu.edu
Philosophy, Texas A&M University    Phone ---->   (409) 845-8764
College Station, TX  77843-4237	    Fax ------>   (409) 845-045
From: dkmiller@unixg.ubc.ca (Derek K. Miller)
Subject: Gatewaying Microsoft Mail/Workgroups via 9600 modem?
Organization: University of British Columbia, Vancouver, B.C., Canada
Lines: 25
Distribution: world
NNTP-Posting-Host: unixg.ubc.ca
Our student association runs a small Novell network which has a subnetwork
of Windows for Workgroups and Microsoft Mail. The Director of Finance, en
electrical engineering student, would like to gateway this system, either
via SLIP or not, into the University's network and thus the Internet, at
the very least to exchange e-mail, but possibly also to do ftp's etc. For
now, this would be done via a 9600 bps modem.
He would like to set it up so that it would periodically call in to check
mail, but would otherwise connect whenever needed.
What is the best way to do this? Gatewaying software is available, but
what works best?
Please reply to me: dkmiller@unixg.ubc.ca
or the D of F    : dleung@ee.ubc.ca
with a cc: to the other. I don't read all of these groups regularly, so mail
is best. If this is a common question, please pot me to a FAQ or ftp site.
:=:=> Derek K. Miller                 dkmiller@unixg.ubc.ca
Researcher, Alma Mater Society        thegrodd@tz.ucs.sfu.ca
University of British Columbia, Canada
Room 230B - 6138 SUB Blvd., Vancouver, B.C. V6T 1Z1
Campus Mail Zone 1  phone (604) 822-6868  fax (604) 822-9019
From: reimert@.etdesg.trw.com (Scott P. Reimert)
Subject: Re: Win NT - what is it???
Organization: TRW Inc., Redondo Beach, CA
Lines: 14
Somewhere in this thread, it has been said that Windows NT (tm) is a
multi-user OS, as well as multi-threading, etc.  I certainly haven't
seen this to be the case.  There are seperate accounts for each person,
and even seperate directories if that is desired.  I don't see an
implentation of simultaneuos use though.
Scott
--
-------------------------------------------------------------------------------
Scott Reimert  \    reimert@mamacass.etdesg.trw.com     /Standard disclaimer:
Redondo Beach, CA \______________________________________/"Blah blah blah ... "
__________________|Always store beer in a cool dark place|_____________________
From: downs@helios.nevada.edu (Lamont Downs)
Subject: Re: Windows 3.1 keeps crashing: Please HELP
Lines: 18
Nntp-Posting-Host: cat.lv-lib.nevada.edu
Organization: UNLV
In article <1993Apr16.155637.15398@oracle.us.oracle.com> ebosco@us.oracle.com (Eric Bosco) writes:
>From: ebosco@us.oracle.com (Eric Bosco)
>Subject: Windows 3.1 keeps crashing: Please HELP
>Date: Fri, 16 Apr 1993 15:56:37 GMT
>
>As the subjects says, Windows 3.1 keeps crashing (givinh me GPF) on me of
>late.  It was never a very stable package, but now it seems to crash every
>day.  The worst part about it is that it does not crash consistently: ie I
Have you tried setting FILES in your config.sys file to a fairly high
number? (I've got mine set to 100; I've seen numbers from 40 to 100
recommended). Also check your STACKS statement, STACKS=9,256 is a good
starting point. Try increasing it if it's already set there (such as
to STACKS=12,256, etc.). Both STACKS and FILES have been identified as
_one_ cause of frequent Win3.1 crashes.
Lamont Downs
downs@nevada.edu
From: loschen@binah.cc.brandeis.edu
Subject: Re: Diamond SS24X, Win 3.1, Mouse cursor
Reply-To: loschen@binah.cc.brandeis.edu
Organization: Brandeis University
Lines: 27
In article <1993Apr16.145322.16378@nlm.nih.gov>, dabl2@nlm.nih.gov (Don A.B. Lindbergh) writes:
>In article <1993Apr15.204845.24939@nlm.nih.gov> dabl2@nlm.nih.gov (Don A.B. Lindbergh) writes:
>>
>>Anybody seen mouse cursor distortion running the Diamond 1024x768x256 driver?
>>Sorry, don't know the version of the driver (no indication in the menus) but it's a recently
>>delivered Gateway system.  Am going to try the latest drivers from Diamond BBS but wondered
>>if anyone else had seen this.
>>
>
>As a followup, this is a co-worker's machine.  He has the latest 2.03 drivers.
>It only happens using the 1024x768x256 driver.  Sometimes it takes a minute
>or so for the cursor to wig out, but it eventually does in this mode.  I
>susect something is stepping on memory the video card wants.  I excluded
>a000-c7ff in the EMM386 line and in system.ini  The problem persisted.
>Perhaps it is something specific to the Gateway machine or it's components.
>It is a 66mhz DX/2 Eisa bus with an Ultrastore (24xx?) controller.  Ah well,
>I was hoping this was some kind of 'known problem' or somebody had seen it
>before.  Perhaps a call to Gateway is in order, but I do find folks here
>usually are far more in the know.
>
>--Don Lindbergh
>dabl2@lhc.nlm.nih.gov
I haven't seen this particular problem, but another place you might
check is if your BIOS is doing video shadowing--Diamond wants that
turned off.  That might cause a memory conflict as well.  Good
luck.  Hope this helps, Chris Loschen, Brandeis U.
From: rene@hardy.u.washington.edu (Rene Magritte)
Subject: Re: Win NT - what is it???
Article-I.D.: shelley.1qnaesINNemf
Organization: University of Washington
Lines: 30
NNTP-Posting-Host: hardy.u.washington.edu
wild@access.digex.com (wildstrom) writes:
>rmohns@vax.clarku.edu writes:
>>Chicogo is what I want to use.  It is, like NT, a true OS with thrue
>>multitasking and multithreading, but has much smaller hardware requirements,
>>and does not meet DOD security specs (but that's okay since it will probably
>>be more of a client OS).  there are a few otehr differences, but those are the
>>main ones.  There was an article about Chicogo in PC Week last August.
>>	The Chicogo and NT development groups at Micro$oft are in intense
>>competition, so it is said.  However, I think a different relationship will
>>arise: NT will be the server (*N*etowrk *T*echonology), Chicogo will be the
>>client machine.  It is entirely possible for different OS's to work together,
>>partly because Chicogo is just a small NT (think of it that way, anyway).
>>(Novell Netware creates an OS on the server that is truly not DOS, so don't
>>scorn the concept.)
>>	Anyway, don't expect it soon.  Windows 4 and DOS 7 are supposed to be
>>released next year (read: see it in 95), so I expect that Chicogo won't be out
>>til '96.
>How does Chicago differ from the (sort of) announced Windows 4. My understand-
>ing, at least from the InbfoWorld accound of Windows 4 is that it's sort
>of NT Lite--a full-fledged operating system but lacking server and security
>features that make NT such a bear. Is W4 not true multithreading?
Can anyone tell me how Chicago/Windows 4 would differ from
OS/2 2.x?  Believe it or not, I'm not trying to start a flame war,
here.   I'm simply curious  if there is going to be any feature
advantage in either of these products (I do not consider the fact that
it has uncle bills seal of approval much of a feature...)
From: saz@hook.corp.mot.com (Scott Zabolotzky)
Subject: .GIF to .BMP
Organization: Motorola, Inc.
Distribution: usa
Nntp-Posting-Host: 129.188.122.164
Lines: 12
Does anybody have any idea where I could find a program that can
convert a .GIF image into a .BMP image suitable for a Windows
wallpaper (i.e. 256 colors).  Hopefully there's something out there
I can get from an ftp site somewhere...
Thanks in advance...
Scott
From: bishop@baeyer.chem.fsu.edu (Greg Bishop)
Subject: Re: Diamond SS24X, Win 3.1, Mouse cursor
Organization: Physics Department, FSU
News-Software: VAX/VMS VNEWS
Reply-To: bishop@baeyer.chem.fsu.edu
Lines: 26
>In article <1993Apr15.204845.24939@nlm.nih.gov> dabl2@nlm.nih.gov (Don A.B. Lindbergh) writes:
>>
>>Anybody seen mouse cursor distortion running the Diamond 1024x768x256 driver?
>>Sorry, don't know the version of the driver (no indication in the menus) but it's a recently
>>delivered Gateway system.  Am going to try the latest drivers from Diamond BBS but wondered
>>if anyone else had seen this.
>>
>As a followup, this is a co-worker's machine.  He has the latest 2.03 drivers.
>It only happens using the 1024x768x256 driver.  Sometimes it takes a minute
>or so for the cursor to wig out, but it eventually does in this mode.  I
>susect something is stepping on memory the video card wants.  I excluded
>a000-c7ff in the EMM386 line and in system.ini  The problem persisted.
>Perhaps it is something specific to the Gateway machine or it's components.
>It is a 66mhz DX/2 Eisa bus with an Ultrastore (24xx?) controller.  Ah well,
>I was hoping this was some kind of 'known problem' or somebody had seen it
>before.  Perhaps a call to Gateway is in order, but I do find folks here
>usually are far more in the know.
I use the Diamond SpeedStar 24X in 1024X768X256 mode all of the time.  I
have NOT found distortions in the cursor.  The cursor is a little jumpy
from time to time (due to 32 bit access to the swap file), but it is never
distorted.
Greg Bishop. (bishop@baeyer.chem.fsu.edu)
Subject: Re: Windows for WorkGroups and LAN Workplace
From: Flint.Waters@uwyo.edu (Flint Waters)
Distribution: comp.os.ms-windows.apps,comp.os.ms-windows.misc,comp.os.ms-,world
Organization: University of Wyoming
Nntp-Posting-Host: sheriff.uwyo.edu
Lines: 13
>Now does anyone know if it is possible to use W4WG and Lan Workplace
>for DOS at the same time.
>ie Can I access a file on another PC while being logged on to the
>mainframe at the same time, simultaneously.
Yup.  We're using both and they work just fine.  Hopefully, someday WFWG
will communicate over LWP TCPIP.  Right now we have to load NetBeui.
I use ODI with ODINSUP and all works well.
From: mitchell@nodecg.ncc.telecomwa.oz.au (Clive Mitchell)
Subject: Dataproducts LZR1260 not printing correctly
Organization: Regional Network Systems Group, Perth
Lines: 951
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