HDTenEightyP/NetNews huggingface dataset:
From: tpehrson@javelin.sim.es.com (tim clinkenpeel)
Subject: grabbing an anim with rasterops & adobe ...?
Reply-To: tpehrson@javelin.sim.es.com
Organization: Evans & Sutherland Computer Corporation
Date: Wed, 16 Sep 1992 01:36:44 GMT

i like to make myself an animation for a demo of some software i'm developing.
here at work we have a mac iifx with rasterops and adobe.  does a great job of
frame-grabbing, but i'm wondering if there is a way to grab a sequence, other
than the slothy acquire, press frame advance, acquire, press frame advance,
etc.  

perhaps other software (hopefully PD or shareware, ha ha) ?  perhaps
something the adobe manual could tell me, if it were visiting this plane of
existence (read: missing) ?

i open to a wide variety of suggestions, but purchasing hardware is not an
option.  i have access to macs (full line), pcs (8088 - 486), amigas (1 & 2),
sun workstations and dec vts (whoopee).

-- 
\clinkenpeel: aberrant analytical cynical agnostic idealist.  i exclusively /
/represent myself.  i do not offend anyone; however, some morons choose to  \
\offend themselves.  judge only those who you would have judge yourself.  i /
/don't practice what i preach - i'm not the type of person i'm preaching to.\
Newsgroups: comp.graphics.animation
From: cs169093@cs.brown.edu (Yong Liu)
Subject: surface plot routine
Organization: Brown Computer Science Dept.
Date: Mon, 14 Sep 1992 22:25:19 GMT

Can somebody send me simply X11-based routine that can draw 
a suface z=u(x,y) in which u is a general function of x and y?
No fancy routine needed but simple one.

Thanks in advanced.

Yong
From: blackdiamond+@CMU.EDU (Philip Andrew Nemec)
Newsgroups: comp.graphics
Subject: 3DS -> RIB
Date: 14 Sep 92 15:00:49 GMT
Organization: Sophomore, Math/Computer Science, Carnegie Mellon, Pittsburgh, PA

I'm looking for a utility program that will convert from 3D Studio files (.3DS)
to Renderman format (.RIB).  If anyone has this or knows where it is, please let 
met know or just send it to me (it should be small enough).
			Thanx...
			   Philip Nemec
Xref: sparky comp.graphics:9687 comp.lang.postscript:4681
Newsgroups: comp.graphics,comp.lang.postscript
Subject: Re: postscript separations
From: hovind7206@mtroyal.ab.ca
Date: 14 Sep 92 02:17:28 MDT
Organization: Mount Royal College, Calgary, Alberta

In article <1992Sep10.012128.16339@mintaka.lcs.mit.edu>, lewin@brokaw.lcs.mit.edu (Jonathan Lewin) writes:
> 
> Hi, I'm the author of a scientific textbook, and I did all the figures (some
> 600) in Micrografx Designer 3.0, and the publishers can't seem to print 
> them properly I'm desperate -- any help at all is really appreciated.
>  
> The problem is in generating color separations on Micrografx Designer 3.0?
> When Designer DRW files are used to generate 4-color (plus 1 spot)
> separations as Postscript EPS files, bit mapped patterns are lost.
> When the file is printed on typesetting equipment, what appears in the region
> that should contain the bit mapped is a pattern of large dots. The same
> problem occurs irrespective of which bit mapped pattern is being used.
> The files can be printed perfectly well on lasers in black and white or
> in color, so the problem appears to be specific to the generation of
> separations. One possibility is that the 4 screens are being
> rotated with respect to another in the region of the bit map (the angles for
> the separation are left at the default values when the postscript files are
> generated, since otherwise the rest of the drawing will not reproduce
> properly when printed). Is there any way within Designer to generate
> postscript files for 4-color separations that will allow bit maps to print
> properly, or is there any other program that could take Designer postscript
> output and manipulate it to generate effective separations?


There is a product available called Publisher's Prism from Insight Systems Inc.
10017 Coach Rd. Vienna Virginia that should solve your problem. It is a windows
product that will take any PS file and produce seperations. Will the word any
bothers me...I have used it to produces 3 color magazines with only minor
problems. Bitmaps will chew up processing time on the imager but they seem to
work ok. The PS files that I used were created in PageMaker 4 so hopefully this
will all still hold true with Designer.  Good Luck


Wade Hovind
Newsgroups: comp.graphics
From: scott@asd.com (Scott Barman)
Subject: AT-VISTA board inquiry
Organization: American Software Development Corp., West Babylon, NY
Date: Wed, 9 Sep 1992 23:41:40 GMT

[I am posting this for someone, please email all replies to me and
 I will forward them.  THANK YOU!]

Does anyone know of a portable (notebook/laptop) DOS machine
that an AT-VISTA board can be plugged into?

-- 
scott barman			| <This space intentionally left blank>
scott@asd.com			|
 (I can barely speak for myself, you expect me to speak for my employer??)
From: Robert_-_Hu@cup.portal.com
Newsgroups: comp.graphics
Subject: Re: Recommendation on high res scanner
Date: Fri,  4 Sep 92 21:01:58 PDT
Organization: The Portal System (TM)
  <1992Aug31.153554.6163@nynexst.com>

there are a number of options available to you as scanners. You need to
indicate the price range you are planning to pay.

Software wise, you need to specify what platform.  Adobe's product currently
is on the mac although I understand they are planning to unveil some for
the IBM/Dos in the Seybold Conference.

Robert Hu
A&a Printers
Newsgroups: comp.graphics
From: jjjbokma@cs.ruu.nl (John Bokma)
Subject: Help wanted: 8 pixels to one (PLEASE!!)
Date: Mon, 14 Sep 1992 11:34:44 GMT
Organization: Utrecht University, Dept. of Computer Science
Keywords: pixel conversion


Does anybody know a solution for the following problem:
                                                       
  _ _ _ _             _______
 | | | | |           |       |      I want to convert 8 pixels with an
 |_|_|_|_|  ---->    |       |      a.r 1:2 to one big pixel. How do I
 | | | | |           |       |      select the best colour?? (no dithering!)
 |_|_|_|_|           |_______|      So I need an algorithm to choose the
                                    best colour out of 8 pixels.

The pixels are 15-bit colour, &0000 = black, &FFFF = white.

I was thinking about calculating distances:

 Rw(Ri-Rj)^2+Gw*(Gi-Gj)^2+Bw*(Bi-Bj)^2

 Rw,Gw,Bw are wheights


And use this to select a colour (I don't know how yet, seems easy for
grayscale pictures)



Does anybody know a solution??






Please Mail: jjjbokma@cs.ruu.nl

Thanks, John
Newsgroups: comp.graphics
From: Q10106@maccvm.corp.mot.com (Kent Norman)
Subject: send reply to knorman@mcdmail1.fwrdc.rtsg.mot.com
Organization: Motorola
Date: 10 Sep 1992 11:35:55 CDT

------------------------- Original Article -------------------------
From: evans1@cbnewsm.cb.att.com (Dan Evans)
Newsgroups: comp.graphics
Subject: WANTED: ftp site with .art graphics for PFS: First Publisher
Date: 3 Sep 92 18:27:47 GMT
Article-I.D.: cbnewsm.1992Sep3.182747.22181
Distribution: usa
Organization: AT&T


Hi Netters,

I'm looking for an ftp site with collections of .art graphics files
for PFS: First Publisher (site and path if you can).

A .pcx/.bmp to .art converter would also be useful.

Please send E-mail, and thanks for your help.

When you find out, please send answer to:
knorman@mcdmail1.fwrdc.rtsg.mot.com
Thank You
--
The Danimal                @@@@-                    @@@@-
                          @@@@@-      @@@@-        @@@@@-       @@@@-
UUCP: att!ihlpm!evans      @@@@-     @@@@@-         @@@@-      @@@@@-
                                      @@@@-                     @@@@-
From: sl8nl@cc.usu.edu
Newsgroups: comp.graphics
Subject: Fonts
Date: 11 Sep 92 15:26:08 MDT
Organization: Utah State University

I posted this once before, but I'll try again.  

I'm looking for FTP sites, BBSs, etc, that font files (straight graphcis) in
PCX, GIF, or whatever form can be found.  FTP sites are preferable, but not
necessarily required.

Thanks in advance,
Josh
From: amaroney@deep6.UUCP (Allen Maroney)
Newsgroups: comp.graphics
Subject: Re: scanning and laser-printing
Distribution: world
Date: 5 Sep 92 14:14:19 EST
Organization: We B Amibas

 In article <BtyKp1.7Ax@news.cso.uiuc.edu> ast48365@uxa.cso.uiuc.edu
 (A Tull ) writes:
> I am looking for good scanning softwares (and places to get them) to use
> on Macs. At present I'm using AppleScan with 300dpi to scan in 2-in photos,
> and printing them out using Pagemaker, which doesn't give me a satisfactory
> result. I am looking for smooth grayscales and higher resolution on both
> the scanning and the printing part. any help ?
>
> advice appreciated.
> thanx in advance

300 DPI scans at 8 bits (256 level gray) will reproduce very good images
for most reproduction.  Here's a few things to look at improving:

1. Make sure that your gray scale reflects the image.  This requires
   reading the D-min and D-Max so that you are not wasting levels on areas
   without data.

2. The enitre image will need to be lightened considerably (but not
   equally) to account for reproduction dot gain.  This is what appens when
   ink hits paper and bleeds out.  Dot gain varies between 20% and 60%
   (newsprint).

3. Make sure that the line screen is acceptable for the paper stock.  Some
   common line screens are 85 (newsprint), 133 (most mags), 150+ Hard stock
   mags.  In the higher end a 300 DPI scan will not really be enough.
   (don't confuse this with laser DPI)  A HIGHER LINE SCREEN IS NOT ALWAYS
   BETTER!

4. End dots.  You almost always want some highlight and shadow dot.  The
   minimum may be a 4% dot (even in 'white' areas) and the max might be
   about 90%.  This is ties into the dot gain.

5. Image directly to film (or better press plates).  Photo paper is far
   less stable than film and requires going to film anyway.  (let's not
   even discuss laserwriter bond paper :)  The density of the film and
   laser intensity must be checked often (we do it every day), as does the
   chemistry.

6. The shape of the dot (ie- each 1/85 of a 85 line screen) can have many
   shapes: square, oval, round, star, etc.  The hardness of the dot as
   well as the edge shape affect the final image.

The rule here is that photos MUST look very light on the screen to
reproduce well.  If you're dealing with a commercial printer ask them
what they can handle and what you need to supply.

We are using Adobe Photoshop at work and are very pleased with it.  The
primary area to control is the 'levels' menu option and the latest version
also has a online densotometer, which is very helpful.  There are probably
other packages that work just as well on other platforms.


    Allen Maroney,                      UUCP:  ...tct!deep6!amaroney
    Pre-press Specialist,           internet: amaroney%deep6@tct.com
    St. Petersburg Times               GEnie: A.Maroney


Newsgroups: comp.graphics
From: hole@phoenix.oulu.fi (Jari K{hk|nen)
Subject: Virtual reality lib for 386?
Organization: University of Oulu, Finland
X-Newsreader: Tin 1.1 PL4
Date: Thu, 10 Sep 1992 09:59:18 GMT

   There was an announcement of Virtual Reality library for 386 in 
   comp.graphics about 4-5 months ago. I've checked my famous ftp-sites,
   but I cannot find it. Was it vr386 or something like that? Anyway, if
   somebody could tell where to get it, I would be very pleased. Thank you.

   -Jari
 
Email:hole@phoenix.oulu.fi
------------------------------------------------------------------------------
Jari Kahkonen |Phone:               |Institute of data | MICKEY MOUSE PANTS??? 
Aleksi  56D29 |(Home) +358-81-376980|Processing Science| You dont't look Cool! 
90120 Oulu    |(work) +358-81-352589|University of Oulu|You look like an IDIOT!
Suomi Finland |                     |      T O L       |      -Calvin  
-------------------------------------------------------------------------------
From: mskuhn@immd4.informatik.uni-erlangen.de (Markus Kuhn)
Newsgroups: comp.graphics
Subject: Re: CCITT standard test image documents
Keywords: CCITT images
Date: 9 Sep 92 17:05:49 GMT
Organization: CSD., University of Erlangen, Germany

prasad@m.cs.uiuc.edu (Ganesh K) writes:

>	I would like to have the 8 standard CCITT test document
>	images used for testing various image compression algorithms.

You can order them like all CCITT standards and related documents
from

     International Telecommunication Union
     General Secretariat - Sales Section
     Place des Nations
     CH-1211 Geneva 20

Markus

-- 
Markus Kuhn, Computer Science student -=-=- University of Erlangen, Germany
Internet: mskuhn@immd4.informatik.uni-erlangen.de  |  X.500 entry available
-A distributed system is one in which the failure of a computer you didn't-
-even know existed can render your own computer unusable. (Leslie Lamport)-
Newsgroups: comp.graphics
From: djb@geovision.gvc.com (Darren Burns)
Subject: Need GIFs of wood-grain for mapping onto objects
Organization: Not officially GeoVision Systems Inc., Ottawa, Ontario, Canada
Distribution: na
Date: Sat, 5 Sep 1992 16:24:56 GMT

Anybody got any GIFs of a nice-looking wood grain?  I'm working on
a radiosity/ray-tracing thing and I can now map GIFs onto surfaces,
and I'd like to see a nice wood surface.

Since the GIF will be repeated over and over as it covers the surface,
it's better if the edges match up (top to bottom, and left to right)
so that there are no visible seams.  I'll take anything though.

Come to think of it, if you have ANY surface-type GIFs (marble, for
example) it'd be great to get those.

Thanks a lot,
Darren Burns
From: JER4@psuvm.psu.edu (John E. Rodway)
Newsgroups: comp.graphics
Subject: Motion weathermaps
Date: 9 Sep 92 13:42:31 GMT
Organization: Penn State University

I have three days of weather maps of Andrew that I would like to put into
motion.  Is there somewhere I can find a way to use gl or some other method
to use on an IBM pc?  Any e-mail response would be appreciated.
John E. Rodway
jer4@psuvm.edu
From: gcapon@axion.bt.co.uk (Graham Capon)
Newsgroups: comp.graphics
Subject: Re: Graphics Gems errata
Date: 9 Sep 92 15:20:41 GMT
Reply-To: gcapon@axion.bt.co.uk (Graham Capon)
Organization: British Telecom Research Labs


I'm new to this news business so apologies if this goes to the wrong place,
(and its not a followup to Eric Haines article either!).

I'm writing a distributed ray tracer but I'm stuck on how to distribute
a reflected ray around the usual reflection angle.

I can generate the probablity distributions easily enough but I don't
know how to alter the usual (effectively 2D) reflection equations to take
account of the reflected distribution cone.

The same is true of distributed transmission but I would assume that solving
one would give the solution to the other.

Anyone got any ideas (please) ?

Graham Capon

*** gcapon@axion.bt.co.uk
Newsgroups: comp.graphics
From: bbrown@infonode.ingr.com (Bailey Brown)
Subject: Re: 24 bit images
Organization: Intergraph Corporation, Huntsville, AL.
Date: Sat, 12 Sep 1992 15:09:17 GMT



>	I have recently purchased a 24bit video card -(speedstar
>24x), and was hoping to get some images that can take advantage
>of this.  Does anybody have any suggestions for archives of
>24bit images.  Also which viewers can handle 24 bit right now?
>Any input would be appreciated....
>		Steve Rounsley

Probably most 24bit images you will come across will be in the
JFIF format, which uses JPEG compression.  The files normally have
the extension .jpg.  There are several viewers for MS Windows,
including ColorView, WinJpeg, and Jview.  I used Jview because it
is free.  It is in file jview90.zip in the pub/pc/win3/desktop 
directory on:
ftp.cica.indiana.edu               129.79.20.84

The other two programs are shareware and are in the same directory
as winjp120.zip and cview386.zip.

Someone on CIS purports to have a .cfg file for VPIC 5.1 that
works in the 32K color modes on the 24X.  I am working on adding
15 and 24bit support to the viewer I wrote.

------------
Bailey Brown                               "Above all else, confusion reigns."
Intergraph Corporation                                  
bbrown@casca.b11.ingr.com                              Procol Harum
Newsgroups: comp.graphics
From: int565c@ccds.cc.monash.edu.au
Subject: Centroid of a triangle
Organization: Monash University
Date: Tue, 8 Sep 1992 06:42:02 GMT

Given a triangle with vertices A(x1,y1), B(x2,y2) and C(x3,y3), what is the
most efficient algorithm to calculate the centroid of the triangle?
Calculation needs not to be exact but the key is efficiency/fast.

EA


Newsgroups: comp.graphics
From: boebert@sctc.com (Earl Boebert)
Subject: Reconstructing "Screened" Photos
Organization: SCTC
Date: Thu, 10 Sep 1992 21:45:44 GMT

Apologies if this is the wrong group ...

Assume you had a series of photographs that had been printed using
letterpress technology some fifty years ago. This means that they
would have been "screened" into dots of some size like 1/100 of an
inch.  Further assume that you wanted to scan them into a computer and
applying appropriate image enhancement software to "unscreen" the
dots for modern reproduction.  If your machine was a 486 clone, what
scanner and software would you use?

Earl

Newsgroups: comp.graphics,comp.sys.ibm.pc.hardware
From: tdbear@tandon.com (Tom Barrett)
Subject: Re: 486 external cache
Organization: Tandon Corporation, Moorpark, CA
Date: Thu, 3 Sep 1992 16:47:32 GMT

In article <92245.084323REE700A@MAINE.MAINE.EDU> <REE700A@MAINE.MAINE.EDU> writes:
>  Before you scoff at that 8K cache, it is NOT DIRECT MAPPED, WRITE THROUGH!
>That Intel cache is a 4-way set associative, write back cache and is
>roughly equivalent to the 64K external caches of most Motherboards!  Of

Well, instead of scoffing, I would gently like to add that it
just depends on the program/data that is being accessed.  If
one has a "ton" of tasks operating without much time devoted
to each slice, the 8K cache probably doesn't matter... nor a
1M cache for that matter.  Manufacturers give very good spec
:)


-- 
Tom Barrett (TDBear)    tdbear@tandon.com          voice: 805-378-6207
Tandon Corporation      609 Science Drive          Moorpark, CA  93021 
Sr. HW Design Engineer  "War is Peace, No is Yes, And We're All Free!" 
-=>NOTE:  The feed to tdbear@tandon.com may be interrupted in Sept.<=-
From: spl@alex.uucp (Steve Lamont)
Newsgroups: comp.graphics
Subject: Re: GIF 87a/89a
Date: 5 Sep 1992 15:10:50 GMT
Organization: University of Calif., San Diego/Microscopy and Imaging Resource
NNTP-Posting-Host: alex.ucsd.edu
Keywords: GIF

In article <1992Sep4.130918.10969@cucs5.cs.cuhk.hk> ckchiu@cucs11.cs.cuhk.hk (Chiu Chong-kan) writes:
>Can anyone tell me what is the difference between GIF87a & GIF89a ?

Two.

:-)

							spl
-- 
Steve Lamont, SciViGuy -- (619) 534-7968 -- spl@dim.ucsd.edu
UCSD Microscopy and Imaging Resource/UCSD Med School/La Jolla, CA 92093-0608
"There was a time when tyrants feared/The new world of the free.
Now freedom is afraid and shrieks/At tyranny." - "Brave New World," A. Macleish
Organization: Queen's University at Kingston
Date: Thursday, 10 Sep 1992 21:30:45 EDT
From: <JIANGY@QUCDN.QueensU.CA>
Newsgroups: comp.graphics
Subject: Re: Polygon Decomposition & Delaunay Triangulation

I have exactly same problem as yours, and am still looking for the code
for optimal polygon triangulation. Besides, does any one know of a code
for constructing a surface from two adjacent contours? This similar
inquery for the later problem was brought up two weeks ago by someone
in the group. Still no clue yet.

Please post to this group if anyone has any pointers.

Thanks!

Queen's U
Kingston, Ont
Canada
Xref: sparky comp.graphics:9716 comp.graphics.explorer:208 comp.graphics.visualization:1337
From: watson@maths.uwa.oz.au (David Watson)
Newsgroups: comp.graphics,comp.graphics.explorer,comp.graphics.visualization
Subject: Re: (Q) calculating spatial density
Date: 15 Sep 1992 00:21:05 GMT
Organization: The University of Westrn Australia
NNTP-Posting-Host: madvax.maths.uwa.oz.au
Keywords: spatial density algorithm statistics

vthrc@brolga.cc.uq.oz.au (Danny Thomas) writes:

>I've got a complex 2D shape with a set of points in it and need to 
>generate a map of density of those points. 

A little known but useful technique for density estimates of point sets
is the inverse of Voronoi neighbourhoods.  In general terms, the area
(volume, etc.) of the Voronoi region about each point is calculated and
then the inverse of this value constitutes a density measurement at that
point.  When a set of such density measurements are contoured, the surface
implied by the contouring procedure expresses the density distribution
function for the point set.  Point sets with "holes" will have negligibly
low densities in the regions of the holes.

This approach is a generalization of the "points within a circle" manual
method of density estimation in the sense that the area and shape of the
counting region is adjusted automatically to be the most efficacious
possible for each subregion.

A commercial program, NNGRIDR, is available that will compute these
inverse area values and then interpolate with natural neighbour interpolation
at the nodes of a regular grid suitable for contouring by conventional
contouring packages.  Send email to the under-signed for more details. 

--
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
Xref: sparky comp.graphics:9706 comp.multimedia:2723 de.comp.graphik:146 alt.graphics:342
From: leo@zelator.in-berlin.de (Stefan Hartmann)
Newsgroups: comp.graphics,comp.multimedia,de.comp.graphik,alt.graphics
Subject: 24 bit programing info for Genoa 7900 card posted
Summary: 24 bit
Keywords: 24 bit
Date: 13 Sep 92 20:40:22 GMT
Organization: Puplic-Access-Xenix-System

Hi,
I just have posted the info on how to program the Genoa 7900 board in
its 24 bits mode to alt.binaries.pictures.misc

It is called g7900pro.zoo

This is an archive with 4 GIF-pics inside.

Best regards Stefan Hartmann.
email to: leo@zelator.in-berlin.de


-- 
 
*************************************************************
*  Stefan Hartmann       This is how to contact me:         *
*  EMAIL: leo@zelator.in-berlin.de                          *
*  Phone : ++ 49 30 344 23 66      FAX : ++ 49 30 344 92 79 *
*************************************************************
Newsgroups: comp.graphics
From: clldomps@cs.ruu.nl (Louis van Dompselaar)
Subject: Star Wars objects
Date: Fri, 11 Sep 1992 08:43:27 GMT
Organization: Utrecht University, Dept. of Computer Science

Hello,

I'm asking this question for a friend who hasn't got 
net access....

He's looking for objects from the staw wars sequel to use
in ray tracers. He's come quite a way programming stardestroyers,
x-wings and the mil.falcon himself, but was wondering if there
was anyone who'd done this before (and thus who was able to
release him of a lot of work)

Any reactions accepted

Louis, who asked this for Viktor...


-- 

Louis van Dompselaar      |||  Life is short, Life is tiny
clldomps@cs.ruu.nl         |    -- Heart Throbs   
Newsgroups: comp.graphics
From: keith@aisg.com (Keith B. Kee {AISG} )
Subject: Deskewing algorithms and codes
Organization: Accura
Date: Sun, 13 Sep 92 20:14:19 GMT

Hi:
	Recently, I heard about de-skewing algorithms and codes. This
	might be a FAQ, but is de-skewing the same as rotation?

	Also, is there any papers, docs, books and public domain sources
	that implement this feature?

	Any direction would be greatly appreciated. Thanks.


		-- Keith

Newsgroups: comp.graphics
From: jk87377@cc.tut.fi (Juhana Kouhia)
Subject: Re: X-rated GIFs
Keywords: GIF,sex
Organization: Tampere University of Technology
Date: Sat, 12 Sep 92 20:10:55 GMT


In article <BuFoAn.2Iy@news.cso.uiuc.edu> rmihlfri@ux4.cso.uiuc.edu (Robert J Mihlfried) writes:
>Can anyone help me find the internet address of an anonymous ftp site
>for x-rated gifs?  Any advice will be warmly welcomed.

Try aurora.utm.edu:pub/pics/gif/x-rated/

Juhana Kouhia
Newsgroups: comp.graphics