HDTenEightyP/NetNews huggingface dataset:
From: dougmc@ccwf.cc.utexas.edu (Doug McLaren)
Newsgroups: comp.graphics,comp.graphics.visualization
Subject: Help needed to find the part for Super VGA monitor
Date: 13 Dec 92 02:44:05 GMT
Reply-To: dougmc@ccwf.cc.utexas.edu (Doug McLaren)
Followup-To: comp.graphics
Organization: Doug's House of Disco
Originator: dougmc@sylvester.cc.utexas.edu

Just got a used monitor, broken, but all it needs is a part:
The cable itself, and the connector for the cable inside the monitor.
Other than that, it should work fine.

But the problem: The manufacturer is in Taipei, Taiwan, and I don't have
the foggiest idea of how to contact them.  Perhaps somebody can help, or
knows where I can find parts for this beast (sorry if this is the wrong
newsgroup, but it's the closest I could find.)

The monitor itself:
   Model LX1564 by Mag Technology Co, Ltd.

Thanks :)

-- 
----------------------- \  Zippy says:
Doug McLaren,            \  Please come home with me... I have Tylenol!!
DemoN on IRC              \
dougmc@ccwf.cc.utexas.edu  \
-------------------------- /
Newsgroups: comp.graphics
From: tima@sequent.com (Timothy Alan Anderson)
Subject: Re: Calculating polygon areas
Organization: Sequent Computer Systems Inc.
Date: Thu, 17 Dec 92 20:37:56 GMT

<proof using triangles deleted>

There is also a proof (more accurately a derivation) using line integrals.
Check back issues of BYTE (around 3 years ago). They had a pretty lengthy
blurb on deriving the infamous poly area summation using that method. It
uses Green's theorom and some moment of inertia stuff...

tima@sequent.com

Newsgroups: comp.graphics
From: philippe@cli52gs.edf.fr ( Philippe SUIGNARD     )
Subject: HOOPS
Reply-To: philippe@cli52gs.edf.fr ( Philippe SUIGNARD     )
Organization: Electricite de France - DER , Clamart FRANCE
Distribution: comp.graphics
Date: Thu, 17 Dec 1992 09:07:28 GMT

I hear more and more people speeking about a 3D library
called HOOPS. What does this library perform ?
What about performances ?
What about drivers : X, PEX, GL, PostScript, ...
All informations are welcomed.

Thanks

Philippe Suignard
Newsgroups: comp.graphics,comp.graphics.animation
From: chrisw@fciad2.bsd.uchicago.edu (chris williams)
Subject: Re: *Accurate* anim format on PC-VGA
Keywords: PC, SVGA, real time, animation
Organization: FCIA Univ. of Chicago
Date: Sun, 13 Dec 1992 21:08:07 GMT


   I'm afraid I didn't express myself well enough in my previous post.

   I don't really care about the image quality of the fli file
(I'm aware that most do.) What is important to me is that the animation
and player programs be able to play 30 frames of animation in one
second. You see, I'm creating animation, and do not own all the
expensive single-frame video gear to lay test animation off to check
timing. The software I use has an internal wireframe preview that
is totally inaccurate, and way too fast on a >20 mhz processor.

   So what I need to know is this: Is there an system of maker and
player that will create animations that can be played at a predetermed
speed, rather than the just the fastest that the hardware can produce.
Again, I don't even care if it has to skip over every other frame to
do it, as long as the ratio of display time to intended time at a
particular frame rate is correct.


                          Chris Williams
                          chrisw@fciad2.bsd.uchicago.edu

New SPAM LITE. Same vile taste; only half the disgusting yellow slime!

Newsgroups: comp.graphics
From: dedmunds@monashee.sfu.ca (Darran Edmundson)
Subject: Re: Screen Printing (colour separation)
Organization: Simon Fraser University, Burnaby, B.C., Canada
Date: Fri, 18 Dec 1992 05:37:19 GMT

03249587@mama.minmet.uq.oz (Darcy Clark) writes:

> A friend of mine wants a program which will separate a GIF into its component
> colours and print each 'layer' inidividually- this is so he can make the screens for each colour that make up the design. Anyone tried this or can provide
> some pointers??

If he's willing to pay, Aldus PhotoStyler can print color separations.  I
think Aldus Freehand can also (which is only ~ $100 ).  You may need to
find a public domain package to convert from .gif to .tif - there are
lots of converters available.


-- 

Darran Edmundson
dedmunds@sfu.ca

Newsgroups: comp.graphics
From: orourke@sophia.smith.edu (Joseph O'Rourke)
Subject: Re: Calculating polygon areas
Organization: Smith College, Northampton, MA, US
Date: Mon, 14 Dec 1992 16:37:51 GMT

In article <Bz994n.JtC@bailgate.gpsemi.com> martin_s@sn4608.oldham.gpsemi.com (Martin Shelley) writes:
>
>I would like to know if there are any generalised routines for calculating
>the area of a 2 dimensional polygon.

Here is an extract from some text of mine that is not yet published:

	So if the coordinates of vertex $v_i$ are $x_i$ and $y_i$,
	twice the area of a polygon is given by
	\begin{equation}
	2 \A( P ) = \sum_{i=0}^{n-1} (x_i y_{i+1} - y_i x_{i+1})
	\end{equation}

Newsgroups: comp.graphics,comp.graphics.animation
From: mkofahl@MtHolyoke.edu (Cat-in-the-Hat)
Subject: Re: Realistic 3D Studio usage
Organization: Mount Holyoke College
X-Newsreader: Tin 1.1 PL5
Date: Mon, 14 Dec 1992 06:01:08 GMT


People, people...the original poster wanted a home system. Now, if Indigos
and Crimsons are Home Systems to you people, GREAT, I'm JEALOUS... But I
assumed that by that he meant a hobby system.

486's may be a hobby system for some, but I still tend to think that they're
a little pricey yet for a hobbyist. My own 386 (no, I'm NOT a Mac bigot,
I loathe them) is doggedly slow (at 40 mhz) and I would'nt recommend it
when my experience with Macs has been so much better.

And NO, I don't claim to know which package is best, but the stuff that 
comes out of the Mac animation lab I work in is damned impressive for
the hardware/software price. 

-Meko
mkofahl@mhc.mtholyoke.edu
(I welcome corrections, I'm intensely interested in this field, and 
 don't know nearly as much yet as I'd like...as I'm sure some will
 already attest...*sigh*)

From: kaf@hpfcso.FC.HP.COM (Keith Fish)
Date: Fri, 11 Dec 1992 22:16:15 GMT
Subject: Re: HP 720 Video access?
Organization: Hewlett-Packard, Fort Collins, CO, USA
Newsgroups: comp.graphics


> A friend and I are doing a project for our graphics class aiming toward
> fast, user-controlled movement through a 3D maze.  We have versions written
> on the RS/6000 and Sun IPX, but neither is quite fast enough for our tastes.
> We would like to port the code over to the HP720, but we can't seem to find
> any info on accessing the machine's video directly.  We don't want to use
> X (too slow), and aren't using any special graphics functions...everything
> is either copied into a buffer and sent to video (RS/6000), or written 
> directly to video.

Excuse my ignorance, but does "written directly to video" == "written directly
to the frame buffer"?  If these statements are the same, then read on ...

> If anyone can direct me to info on how to do this on the 720, or know of a
> program that does it (and has source available!), please let me know.

I'm suprised you think X is too slow.  Have you alrady tried it?
Using X and doing client/server communication through shared memory
(versus sockets) should be pretty darn fast.  (I *believe* setting
DISPLAY=local:0.0 is one way to ensure this?)  Another alternative is to
use HP's Starbase graphics library to simply [dc]block_write() your data
to a graphics window.  You should find a Starbase base example in
/usr/lib/starbase/demos (boxes.c).
From: efw5565@zeus.tamu.edu (Evelyn Wells)
Newsgroups: comp.graphics
Subject: looking for current research in GUI-aspects of color
Date: 15 Dec 1992 11:52 CST
Organization: Texas A&M University, Academic Computing Services
Distribution: world
NNTP-Posting-Host: zeus.tamu.edu
News-Software: VAX/VMS VNEWS 1.41    

I am about to embark on my graduate research experiment.  The experiment
is a comparison of color spaces (RGB, HLS, etc.) and color specification
techniques (sliders, 2-D displays, etc.), a continuation of the research
conducted by Schwarz at the University of Waterloo ~1985.  There has not
been much written in this area since then, so I would like to put a call 
out for any others who are actively researching in this area to please
contact me, so that I can make sure my project is not duplicating existing
work.  Thanks very much.

Evelyn Wells
Visualization Laboratory
Texas A&M University

evelyn@archone.tamu.edu

Xref: sparky comp.graphics:12834 comp.graphics.animation:1305
From: aron@taos.ced.berkeley.edu (aron bonar)
Newsgroups: comp.graphics,comp.graphics.animation
Subject: Re: Realistic 3D Studio usage
Date: 13 Dec 1992 20:37:28 GMT
Organization: University of California, Berkeley
Distribution: world
NNTP-Posting-Host: taos.ced.berkeley.edu

In article <PHUTTER.59.724272116@cardinal.sc107.wesleyan.edu>, PHUTTER@cardinal.sc107.wesleyan.edu (Macbeth) writes:
|> In article <Bz6nGA.L29@mtholyoke.edu> mkofahl@MtHolyoke.edu (Cat-in-the-Hat) writes:
|> >Subject: Re: Realistic 3D Studio usage
|> >From: mkofahl@MtHolyoke.edu (Cat-in-the-Hat)
|> >Date: Sun, 13 Dec 1992 05:33:44 GMT
|> 
|> 
|> >Macintosh seems to be the leader for animation packages so far...here's
|> >what I know (somewhat limited, but producing some impressive stuff!):
|> 
|> You are kidding, right?
|> 
|> 
|> Come on! For $20K you can get a Silicon Graphics Iris Indigo with full 3D 
|> animation software and 24-bit accelerated graphics, as well as CD-quality 
|> sound and real-time rendering and animation. Included on these systems is 
|> the capability to capture/edit digital video from a multitude of sources and 
|> even paste them back to either digital or analog media (optical disks / 
|> video tapes). Of course, you also get the Silicon Graphics MIPS chip 
|> performance and the ability to upgrade to a 64-bit R4000. For $20,000 you 
|> can most definitely get a very nice setup ......... however, PLEASE do not 
|> make it a Macintosh.
|> 
|> >-Meko
|> >mkofahl@mhc.mtholyoke.edu
|> 
|> 						Greetings,
|> 
|> 						Macbeth


That's right...How can anyone way that Macs are the best animation machines when
there are Crimsons and Indigos around. 

I could see how there would be a strong case for image editing and manipulation
on the Mac with photoshop.  But I was down in San Jose a few weeks ago looking
at the new version of Alias and they also showed me their new image editing and
painting programs.  Photoshop is gonna have some VERY stiff competition.

Aron
Newsgroups: comp.graphics,comp.graphics.animation
From: steve@fulcrum.oz.au (Steve Taylor)
Subject: Re: Realistic 3D Studio usage
Organization: The Fulcrum Consulting Group
Date: Tue, 15 Dec 1992 02:12:19 GMT

mkofahl@MtHolyoke.edu (Cat-in-the-Hat) writes:

>People, people...the original poster wanted a home system. Now, if Indigos
>and Crimsons are Home Systems to you people, GREAT, I'm JEALOUS... But I
>assumed that by that he meant a hobby system.

Quite so. To quite Dave Howe, the original poster: "Now, keep in mind that
this is supposed to be realistic. I can't afford to spend $20,000 just for
a home system."

Somehow, this phrase mutated in peoples minds, and now people want to help
Dave spend his $20,000.

					

						Steve Taylor
						steve@fulcrum.oz.au

Newsgroups: comp.graphics
From: david@oahu.cs.ucla.edu (David Dantowitz)
Subject: Looking for spec on Scitex CT and LW Handshake file formats
Organization: UCLA, Computer Science Department
Date: Thu, 17 Dec 92 05:18:21 GMT


Title says it all:

Looking for spec on Scitex CT and LW Handshake file formats.  Are
these FPT-able from somewhere?  Photoshop and other programs
read this file format (as well as Scitex tools, I suppose :-)

Thanks,
	David
-- 
David Dantowitz
david@cs.ucla.edu

Singing Barbershop when I'm not doing parallel simulation
From: schwenk@fred.cis.udel.edu (Peter A. Schwenk)
Newsgroups: comp.graphics
Subject: A Borland C++ .BGI for 320x200, 256-color
Date: 17 Dec 92 17:18:14 GMT
Organization: University of Delaware, Newark

Howdy,

I just bought Borland C++ 3.1, and I cannot find any direct support for the
320x200, 256-color VGA mode (using the supplied library functions).  I was
wondering if there was a .BGI file floating around that would allow one to
use this mode.  I found a book that describes how to use the VGA BIOS to use
the mode and where to write into memory, but I wanted to have the option of 
using the library functions supplied with the compiler.

Also, does anyone know if there is a book out there that describes how to 
write a .BGI for Borland language products?  

Please email your responses unless you want to broadcast them.

Thanks,

	Peter Schwenk (schwenk@cis.udel.edu)
From: frank@whare.cavebbs.welly.gen.nz (Frank van der Hulst)
Newsgroups: comp.graphics
Subject: Re: *Accurate* anim format on PC-VGA;
Date: Sun, 13 Dec 92 09:10:35 NZT
Organization: Tech-Soft Systems, Wellington, NZ

chrisw@fciad2.bsd.uchicago.edu (chris williams) wrote the following: 
> 
>     I have DTA 1.8 (very, very nice), Play73, AAPLAY for Windows, MPEG
> and a number of other animation creation and playback utilities. 
> 
>     None of them seem to have one specific feature that I need; totally
> accurate playback. I am creating animations and rendering to Targa

>     Note: I am using a 486-33 DX2, and Diamond SpeedStar24X.

Hmmm... I was about to suggest getting a faster machine :-)

I can't see why PLAY73 particularly can't keep up -- do you have large areas of changes from one frame to another?

You could download FLILIB (FLILIB11.ZIP is the latest version, I think) from Simtel's MSDOS/GRAPHICS directory. It provides C source code for FLI encoding and playback, so you could roll your own player.

Frank.


--
+-------------------------------------------------------------+
| The end of the world is ni                                  |
| *O(&%^#$%g) }:&(*                                           |
| NO CARRIER                                                  |
|                                                             |
| frank@whare.cavebbs.welly.gen.nz                            |
+-------------------------------------------------------------+

Newsgroups: comp.graphics,comp.graphics.animation
From: sts@mfltd.co.uk (Steve Sherwood)
Subject: Re: POV bug when rendering 640x480
Reply-To: sts@mfltd.co.uk
Organization: Micro Focus Ltd, Newbury, England
Date: Fri, 18 Dec 1992 15:04:04 GMT

In article <SBCHANIN.92Dec17161318@raisin-nut.ai.mit.edu>, sbchanin@ai.mit.edu (Steve Chanin) writes:
|> 
|> I'm using Ver 1.0.ibmicb on a Gateway 2000 486DX2/50 the problem comes
|> up (for example) when I render sunset.pov.
|> 
|> Thanks,
|> Steve
|> --
|>

I have rendered sunset.pov to 640x480 and the image is perfect.  I have rendered 
several images, some of them stunning, and no rogue lines.
The version of POV is 1.0, and is running on both an Oki i860 and 
an NEC Mips X-Workstations.

Steve
-- 
+-----------------------------------+------------------------+ 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
      Extn 5543, sts@mfltd.co.uk, !uunet!mfocus!sts
Newsgroups: comp.graphics,comp.graphics.animation,comp.speech
From: Brandon.Vanevery@launchpad.unc.edu (Brandon Vanevery)
Subject: Must 24-bit graphics on PC == DOgS/Windoze?
Organization: University of North Carolina Extended Bulletin Board Service
Distribution: na
Date: Thu, 17 Dec 1992 21:46:33 GMT


I need to buy a computer and write ray tracers.  I'd love an SGI but my
budget is more limited than that.  So I feel I'm stuck with a souped-up PC.

All the 24-bit PC boards I know about, have drivers for DOS or Windows. 
But I need a _REAL_ (i.e. 32-bit) operating system.  OS/2 is out: to my
knowledge, there are no 24-bit OS/2 2.0 drivers in existence anywhere, nor
does anyone plan to make them.

Is there _ANY_ alternative on a PC?
X Windows under a PC UNIX, perhaps?
Anything at all???

Brandon Van Every

--
   The opinions expressed are not necessarily those of the University of
     North Carolina at Chapel Hill, the Campus Office for Information
        Technology, or the Experimental Bulletin Board Service.
           internet:  laUNChpad.unc.edu or 152.2.22.80
Newsgroups: comp.graphics
From: Linda_Strong@mindlink.bc.ca (Linda Strong)
Subject: Clip Art
Organization: MIND LINK! - British Columbia, Canada
Date: Mon, 14 Dec 1992 16:45:49 GMT

The Alexandra Projects has created a collection of over 50 quality images
that are unique to British
Columbia landmarks, geography and attributes.  Perfect for correspondence and
newsletters, these
images add pizazz to virtually any document.  BC Scapes is available in
various IBM and Macintosh
formats which allows you to place and resize the images in word processing or
desktop publishing
applications.  This also gives you the ability to alter the images to meet
your specific creative
needs through the use of a high end graphics package.  However you choose to
use BC Scapes, we hope
that  you will enjoy the fun and versatility of this package.  BC Scapes
total cost (including GST,
PST and shipping) is a mere $35 - so why delay?  To purchase BC Scapes,
please contact The Alexandra
Projects at #305-1140 Homer Street, Vancouver, B.C., V6E 2X6, Phone 683-4563
or Fax 683-6880.
Payable by cheque or money order.
Newsgroups: comp.graphics
From: O-6@sarpih.no (Student Fellesbruker)
Subject: Fill routine
Organization: stfold Ingenirhyskole
Date: Mon, 14 Dec 1992 13:58:09 GMT

Hello,

I need some help with filling an area between 4 coordiantes with assembler.
Can anyone help me....

Morten Eriksen / Twilight Zone
From: newberry@kepler.as.arizona.edu (Mike Newberry)
Newsgroups: comp.graphics
Subject: Re: Calculating polygon areas
Date: 18 Dec 92 20:47:04 GMT
Organization: University of Arizona, Tucson, AZ

In article <1992Dec16.192007.29022@sophia.smith.edu> orourke@sophia.smith.edu (Joseph O'Rourke) writes:
>
>  In article <1992Dec16.173613.5737@medusa.prime.com> mrj@CIS.Prime.COM writes:
>  >In article 24617@sophia.smith.edu, orourke@sophia.smith.edu (Joseph O'Rourke) writes:
>    >> 	So if the coordinates of vertex v_i are x_i and y_i,
>    >> 	twice the area of a polygon is given by
>    >> 	2 \A( P ) = \sum_{i=0}^{n-1} (x_i y_{i+1} - y_i x_{i+1})
>  >
>  >There is a more general form of the above:
>  >
>  >	Area = 0.5 \sum_{i=0}^{n} (P_i X P_{i+1})         
>  >
>  >	s.t. i+1 = (i+1) mod n i.e. when i = n then P_{i+1} = P_0
>  >Where X denotes a vector cross product. 
>
>These are equivalent formulae: I just unraveled the cross product
>into x and y coordinates.
>
>  >The proof is simple. If anyone is interested I'll post it to the net.
>
It's just a straight application of Green's Theorem from calculus.
.
From: ron@topaz.bds.com (Ron Natalie)
Newsgroups: comp.graphics
Subject: Re: How to make *shared-memory* Pixmaps on Sun 4?
Date: 20 Dec 1992 16:22:54 GMT
Organization: BDS Systems
Distribution: world
NNTP-Posting-Host: topaz.bds.com

You have to be careful.  There are two facilities provided by the
MIT-SHM extension.  The first is XShmPutImage.  This essentially does
the XPutImage call from the shared memory region by copying to the
destination drawable.  The other is a real Shared Memory pixmap that
makes an X Drawable out of a piece of shared memory.

The former is implemented entirely in the extension.  No ddx code is used.
Hence, all you have to do is -DMITSHM when you compile and you get it.
The turning of shared memory into a PIXMAP requires colusion with other
DDX code regarding Pixmap allocation.  This is not easy to do in all cases.
I spent some time doing this with the HP server which uses a separate module
called GRM to manage all the server memory and had to teach it how to allow
X to pass in a chunk of memory allocated outside of GRM to use as server
memory.

The distinction between the two is pretty minor.  If you are solely after
better bandwidth to the screen, XShmPutImage is OK.  If you want to do
fancier stuff like drawing into pixmaps outside of X or peeking into them
with out doing a GetImage, then you'll need to make sure that the server
supports that.  The test program in extensions/test/shmtest.c will tell
you.  If it comes up with only one window, it doesn't have the shared pixmap
part of the extension in the server in use.

-Ron
From: chrisg@cbmvax.commodore.com (Chris Green)
Newsgroups: comp.graphics
Subject: Re: Clipping polygon to rectangle
Date: 17 Dec 92 14:06:51 GMT
Reply-To: chrisg@cbmvax.commodore.com (Chris Green)
Organization: Commodore, West Chester, PA

In article <19921215.155422.690@almaden.ibm.com> capelli@vnet.ibm.com (Ron Capelli) writes:
>No intermediate polygons need be saved between stages of a
>Sutherland-Hodgman polygon clipper.
>
>The clipped edges output for each side of the clipping region
>(eg., rectangle) are in the order they need to be considered
>for the next side.  Therefore, the stages can be cascaded in a
>recursive-like way.  The output of each stage except the last
>can be implemented as a call to the subsequent stage, and the
>last stage outputs the edges of the clipped polygon, possibly
>with degenerate edges along the sides of the clipping region.
>

	Note that this method is often slower, as it prevents trivial
rejection if the earlier clipping stages would have completely
eliminated the polygon.
-- 
*-------------------------------------------*---------------------------*
|Chris Green - Graphics Software Engineer   - chrisg@commodore.COM      f
|                  Commodore-Amiga          - uunet!cbmvax!chrisg       n
|My opinions are my own, and do not         - icantforgettheimpression  o
|necessarily represent those of my employer.- youmadeyouleftaholeinthe  r
|"A screaming comes across the sky..."      - backofmyhead              d
*-------------------------------------------*---------------------------*
Xref: sparky comp.graphics:12790 sci.math.num-analysis:3544 sci.math:16723 sci.math.stat:2575 sci.electronics:20515 sci.engr:2354
From: gyan@unixg.ubc.ca (Gyan P. Sinha)
Newsgroups: comp.graphics,sci.math.num-analysis,sci.math,sci.math.stat,sci.electronics,sci.engr
Subject: Re: Plot programs
Date: 11 Dec 92 05:08:06 GMT
Organization: The University of British Columbia
Distribution: inet
NNTP-Posting-Host: unixg.ubc.ca

In <Bz061x.My1@gabriel.keele.ac.uk> phd85@seq1.keele.ac.uk (D.H. Holden) writes:

>i.engr:4117

>From article <1g27fjINNmd6@sol.deakin.OZ.AU>, by huang@deakin.OZ.AU (Weiguang Huang):
>> 
>> 	I suggest you consider PlotData. Here is some info about it.
>> 
>     who asked?
>--
>                                                                     

>phd85@uk.ac.keele.seq1
>keele university. 

This guy is a royal pest, and you'd know if you've been around the net
for long. He floods the net periodically with these blatant ads which
insult everyone's intelligence. Does he really think we can't see
through his BS? If he wishes to tout his product, I wish he'd pay for
ad space just like other software developers, and not abuse his net
privileges because of his academic status.

I wonder what people who have to pay for their newsfeeds think of him?

Gyan P. Sinha
UBC, Vancouver.
Newsgroups: comp.graphics,comp.graphics.animation