HDTenEightyP/NetNews huggingface dataset:
From: haggas@kean.ucs.mun.ca
Subject: Re:  LOOKING FOR A TREE 
Organization: Memorial University. St.John's Nfld, Canada
Distribution: na
Date: Thu, 17 Dec 1992 16:12:19 GMT

In article <1992Dec16.163940.8365@msuinfo.cl.msu.edu>, gcook@horus.cem.msu.EDU (Greg Cook|xxxxxx) writes:
> 
> I'm putting together a large family tree and I want to include a graphic
> of a tree on the cover.  I want simply a tree with no leaves, sort of a
> branching thing.
> 
> I have a small clip-art graphic of what I want, but when I enlarge it,
> of course, it looks choppy (damn bitmaps anyway).
> 
> So, is there a high resolution tree out there?
> 
>   OR
> 
> Can I convert my bitmap image into a vector image that will look better?
> 
> I have Windows 3.1, MS Word 2.0, CorelDraw 3.0, and the usual windows
> paintbrush, etc., GWS.
> 
> Can any of these do what I want?  I tried using corel trace on my tree,
> but it came out like some neo-modern warped representation of a tree.
> 
> Thanks for your help.
> 
> -----------------------------------------------------------------------
> Gregory R. Cook                           gcook@horus.cem.msu.edu
> Department of Chemistry                   cookgreg@student.msu.edu
> Michigan State University                 cook@msucem.BITNET
Use a fractal tree. This should give you a good tree, without leaves, 
that could be controlled with your input parameters. Capture the image 
as an EGA 640x480x16.
Re: Fractal Programming In C, by Roger T. Stevens, 1989, M&T Books.
Chapter 12: Trees, Tree-Drawing Program, page 229.
John Haggas
haggas@kean.ucs.mun.ca
From: jeff@kuhub.cc.ukans.edu (Jeff Bangert)
Newsgroups: comp.graphics
Subject: Boolean Combinations of Half-spaces?
Date: 14 Dec 92 14:32:00 CST
Organization: University of Kansas Academic Computing Services

Some time in the past I read a something about defining regions in the
plane using boolean combinations of half-spaces.  I think that a
convex edge was produced by AND and concave by OR.  The
reference may have been in IEEE CG+A.

I know that the above is quite vague, but if anyone recognizes the
ideas and knows of a paper or monograph discussing them, I would
appreciate the reference.

Thanks,

-- 
Jeff Bangert			jeff@kuhub.cc.ukans.edu
Computer Center			jeff@ukanvax.bitnet
University of Kansas
Lawrence, KS 66045
(913)864-0466
From: davidk@raasay.Dundee.NCR.com
Newsgroups: comp.graphics
Subject: Re: Non-dithered colors in Paintbrush?
Date: 18 Dec 92 09:30:30 GMT

In article <92350.163854GIB1@psuvm.psu.edu>
GIB1@psuvm.psu.edu (Glenn Bobb) writes:

> Has anyone out there had any luck creating non-dithered colors
> in Windows 3.1 Paintbrush. .......no........Is this a limitation of
> Paintbrush .......yes....... and is there some packages out
> there that allow TRUE 256 color creations.  I would appreciate any
> guidance that may be given.
>
 The best package for this type of image is "Deluxe Paint II (enhanced)" by
ELECTRONIC ARTS. It creates true 256colour pcx files (8bit) which can then 
be converted to bitmap(BMP) images in paintbrush for windows.
	One problem you might get:   If you don't have enough Graphics memory or 
you run windows in standard mode paintbrush will still dither the image 
when you import it. I wouldn't save the image if that happens.
	E-mail me if you need more help.[I'm a graphic designer not a programmer].

********************************
*DAVID KENINGALE NCR (DUNFERMLINE) *
*   ***********FINALLY A COMP.GRAPHICS QUESTION I COULD ANSWER*******   
*\\\\\\ *
********************************
Newsgroups: comp.graphics
From: yh3w@brain.med.virginia.edu (Yuan-Chuen Hwang)
Subject: Where do I find "brlcad"?
Followup-To: poster
Organization: Neuroclinical Trials Center, University of Virginia
Date: Tue, 15 Dec 1992 14:39:53 GMT


Where can I find the brlcad source code for HP 700 series?

Newsgroups: comp.graphics
From: aorenste@cs.ulowell.edu (Aaron Orenstein)
Subject: Re: Simple 3D wireframe rendering method?
Organization: Interactive Media Group - University of Massachusetts at Lowell
Date: Thu, 17 Dec 1992 22:42:28 GMT

In article <jsm1.724536721@crux1.cit.cornell.edu>, jsm1@crux3.cit.cornell.edu (Solitude Standing) writes:
-> I am looking for formulae to render a three-dimensional wireframe model
-> onto a three dimensional screen, with a given rotation about any axis.
-> Basically I am just looking for the conversion method 3D -> 2D.  No
-> complicated things like hidden surface removal or polygons.  Any help
-> anyone could provide would be great!  Thanks.
-> 
-> 
-> --
-> Jason Scott MacDonald                    jsm1@crux2.cit.cornell.edu
-> "Technology sufficiently advanced is indistinguishable from magic."
->                                             - Arthur Charles Clarke
-> END OF LINE

Rotating points is really quitesimple...
(From Fundamentals of Interactive Computer Graphics by Foley & Van Damn...)

For every point:
Treat the point as a matrix [X Y Z W] where W is 1.

To rotate around the Z axis, multiply by the matrix:
		|	cos A	sin A 	0	0	|
		|	-sin A	cos A	0	0	|
		|	0	0	1	0	|
		|	0	0	0	1	|

(A is the Angle of Rotation)
(The vertical bars are a sorry way of representing the matrix)
To rotate around the X axis, multiply by the matrix:
		|	1	0	0	0	|
		|	0	cos A	sin A	0	|
		|	0	-sin A	cos A	0	|
		|	0	0	0	1	|

To rotate around the Y axis, multiply by the matrix:
		|	cos A	0	-sin A	0	|
		|	0	1	0	0	|
		|	sin A	0	cos A	0	|
		|	0	0	0	1	|


Now,  Once you have your rotated points, use the following equation to convert
it to 2d:

	I = XD/(Z/Q)	J = YD/(Z/Q)

	Where:
		I is the x-coordinate (-F <-> F)
		J is the y-coordinate (-F <-> F)
		D is an arbitrary scaling factor (you pick it)	
		Q is the forshortening ratio (you pick it)
		F is an arbitrary bounds (based on your X,Y,Z coords)

	You then need to scale and translate the (I,J) points into screen coords

 	The forshortening ratio represents how "deep" you want the picture.  It
should be between Z and 1.  (If it is Z then your picture will be a parallel view)

	- Aaron
-- 
--------------------
"The Code is free, It's the comments that cost a lot..."
Aaron Orenstein	(aorenste@cs.ulowell.edu, 129.63.1.11)
From: messina@netcom.com (Tony Porczyk)
Newsgroups: comp.graphics
Subject: Graphics tools for X under 386BSD or SparcClassic
Date: 15 Dec 92 19:30:36 GMT
Organization: Messina Software


There has been recently a fascinating discussion here regarding Photo CD
and suitability of various platforms to 24-bit graphics works, particularly
photo-related.  I am a newcomer to that area and would like to use
reasonably good tools within home-type budget.  I know of various tools
for Windows, and I am sure there are magnificent tools for SGI, but the
latter ones are beyond my reach.  Is anyone aware of such tools for X
under 386BSD?  Is the X direction even worth pursuing (cost)?  Are there
any X tools on different platforms within reason (such as SparcClassic)?
Is Windows the only one left (for various reasons I have no use for Mac
and Amiga since graphics is not the only thing I will be doing on the
computer and both Windows and X would get a fair amount of workout anyway)?
In particular - are there any inexpensive video capture boards that I could
use under 386BSD?  Slide scanners?  Photo CD?  Same on SparcClassic?

Thanks for any tips.

t.
Newsgroups: comp.graphics,sci.math.num-analysis,sci.math,sci.math.stat,sci.electronics,sci.engr
From: jk87377@cc.tut.fi (Juhana Kouhia)
Subject: Re: Plot programs
Organization: Tampere University of Technology
Date: Tue, 15 Dec 92 10:34:17 GMT


In article <1992Dec12.150852.28112@ucc.su.OZ.AU>
colinr@extro.ucc.su.OZ.AU (Colin Rose) writes:
>>>>     I suggest you consider PlotData. Here is some info about it.
>
>>>      who asked?                        
>
>>       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.
>
>
>If my memory serves me correctly, PlotData is a shareware / freeware/ 
>and/or public domain product. If so, I belive net advertising is
>quite acceptable. My initial irritation with Dr Huang's adverts 
>has, with time, turned into mild amusement.

Tupperware? Huang sells them but shareware versions are available.

The annoying thing in Huang is that he post his articles to every
possible newsgroup, even the original request appears in one or
two groups. And to groups which are not appropriate for such
postings (e.g. posting on symbolic calculator in sci.math
even the original article appeared only in sci.math.symbolic).

Such posting methods makes his articles as advertisements.

It is understood that such posting methods are not appreciated
by articles posted in news.announce.newusers.

Readers (yes, including me) has written about it to him
privately and in newsgroups, but still we can see such postings.

Ignoring the common rules and the recommends of fellow netters
is rather strange, specially because Huang is Dr. person.
Would you like to work with such personality?
Or have such personality as your thesis supervisor?


Juhana Kouhia
--
Maintainer of the digested mailing list Middle-Eastern Music;
for discussions on Middle-Eastern and related music.
Subscriptions to middle-eastern-music-request@nic.funet.fi.
Newsgroups: comp.graphics
From: thail@seas.gwu.edu (Samuel R. Posten)
Subject: srgp
Organization: George Washington University
Distribution: usa
Date: Wed, 16 Dec 1992 05:41:29 GMT

If anybody can tell me how to make srgp on a sun recognize the sin and cos
functions in math.h i would be really grateful!!!  thanks, sam

-- 
********************************************
*  thail@seas.gwu.edu                 SRP  *
*                                     III  *
*  Phi Sigma Kappa Fraternity              *
From: cs_b153@ceres.kingston.ac.uk (Greg Royle)
Newsgroups: comp.graphics
Subject: MACPAINT image request
Date: 14 Dec 1992 11:54:08 -0000
Organization: Kingston University, Kingston-upon-Thames
NNTP-Posting-Host: ceres.kingston.ac.uk

Hi,
	Can anyone out there please tell me where I can get hold of some 
MACPAINT images or even better an ftp-site for them?

	Also can anyone out there in other Universities that can perhaps give
me details of Postgraduate Science courses in Computer Graphics, anywhere in the
world??

			Many regards,

				Greg Royle (student@kingston Uni) 
Xref: sparky comp.graphics:12880 comp.graphics.visualization:1906 comp.org.acm:1025
From: rsc@altair.csustan.edu (Steve Cunningham)
Newsgroups: comp.graphics,comp.graphics.visualization,comp.org.acm
Subject: SIGGRAPH Visual Proceedings
Summary: Sale prices for the holidays
Date: 14 Dec 92 20:07:28 GMT
Organization: CSU Stanislaus


                   Just in time for the holidays!

             SIGGRAPH '92 Visual Proceedings available

SIGGRAPH has recently received the SIGGRAPH '92 Visual Proceedings from 
the conference, and we got more than we expected -- we're overstocked.  
This is a wonderful publication with well over 100 color plates in its 
112 pages.  Our normal member price is $25.00, but through January 15, 
1993, we are pricing it at $20.00 for all orders to trim our stocks and 
to make it available to everyone in the graphics community.  For this 
same time, we are also reducing the price on the 1989 through 1991 
SIGGRAPH art show catalogs from $20 to $15, and since we expect people 
to want to order several years' catalogs at once, we are making the 
entire four-year set available as a bundle for $60.

SIGGRAPH publications may be ordered from
	Publications Marketing Manager
	ACM Press
	1515 Broadway
	New York, NY  10036
	1-800-342-6626
	+1 301-528-4261 customer service, or orders outside the USA or in
		MD or AK (8:15 - 4:15 M-F US Eastern Time.)
	e-mail inquiries: ACMPUBS@ACMVM.BITNET

To expedite your order, the order numbers are:
	SIGGRAPH '92 Visual Proceedings: 428922
	SIGGRAPH '91 Computers in Art and Design: 428912
	SIGGRAPH '90 Digital Image -- Digital Cinema: 429904
	SIGGRAPH '89 Computer Art in Context: 428891

-- Steve Cunningham
   SIGGRAPH director for publications
Newsgroups: comp.graphics,comp.os.msdos.programmer,comp.msdos.programmer
From: slindsay@nyx.cs.du.edu (Steve Lindsay)
Subject: bitmap
Organization: Nyx, Public Access Unix @ U. of Denver Math/CS dept.
Distribution: na
Date: Sat, 12 Dec 92 05:10:26 GMT


I am working with Borland C++ 3.1 and VGA trying to use the 
Graphics.h library.  When I change my setbkcolor to BLUE and
then change setcolor to BLACK (current drawing color) and try
to draw it is not in black it is in blue.  Or at least I think it is
blue because I cannot see the lines.  

What is the deal?  Does Graphics.h change the background color
by changing color number 0 (BLACK) to what ever color I tell it 
and then when I try to draw with number 0 (BLACK) it is not black
but the same as my background color.

As a side note.. This whole thing of drawing in the
dark (by plug in in coordinates) is crazy and very time consuming
to try to draw a pretty picture with.  What I did was made a bitmap
in a paint program the same size as that will be displayed on my VGA
screen.  Then drew my picture with the color that I will have in VGA.
Then went around getting coordinates in my paint program by putting
the cursor on a pixel and reading the coordinates and plugging those
numbers into my code.  I am going nuts isn't there a easier way.  Are 
there any graphics libraries that will read a bitmap file (gif, tif, bmp
ect...)
off the disk then I could use something like getimage to store it 
and putimage to display it when I needed it.  Does anyone have
any ideas?


Newsgroups: comp.graphics
From: dave@oldcolo.oldcolo.com (Dave Hughes)
Subject: NAPLPS Action
Organization: Old Colorado City Communications (oldcolo.com - login "newuser")
Date: Mon, 14 Dec 1992 04:35:46 GMT

 
Ken Lemore, in a post sent to me said:
 
>looking for users of the ansi standard NAPLPS image format,
>North American Presentation Level Protocol Syntax.  we're
>trying to find/write software to convert other image formats
>(ex. gif, tiff, cgm ...) to naplps.
>any info or direction to another group appreciated.
>thanks in advance, ken
 
Ken - as one of those stirring up the NAPLPS pot as much as I can as 
a low-bandwidth, but standards-based solution to a whole range of 
telecom tasks - I guess I hear from a lot of Naplps 
users/developers. So we have a maillist going, linking users, 
developers, and interested parties.
 
If you (or anyone else who is interested) send e-mail to 
 
                 naplps_graphics@oldcolo.com
 
say you want to be added, a little about yourself, and your interest 
in Naplps, you will be added. This list is not large (about 25 right 
now) and not heavy traffic, but the only linked-discussion anywhere 
on the subject. 
 
Our software permits the e-maillist to be further linked to a 
newsgroup, and further to a corresponding fidonet, or TBBS (using 
uucp) or Mac Firstclass (using uucp) echo. A lot of vitality is 
going on in products to make any Fido-protocol BBS, or commercial 
TBBS system - at both the menuing and the TDBS (data base) level 
into a dual Naplps-Ascii presentation system. 
 
For those who can't stand maillists, I am slowly getting either a 
comp.graphics.naplps or alt.naplps newsgroup started. But then there 
are members of our list who have no such access to newsgroups, are 
on AT&T mail or such, so want it this way.
 
Now as to the answer to your question - boy we REALLY could use some 
conversion software. Even if it is two-step. There is some, but not 
much. Of course, as you know, you can convert bitmapped images to 
'incremental point' NAPLPS, but which usually also requires a decent 
graphics editor to scale the image and place it. Not a lot of 
savings but better than nothing.
 
Then there is one recent product by Mitsubishi called Quick Trace, 
which converts TIFF to EPS, CGM and Micrografx Graphics File (.PIC 
or .DRW). Which I found can then load into Draw Perfect and export 
to Videoshow, which is basically NAPLPS. Two steps. But better than 
none. 
 
Now whether you join the naplps_graphics maillist, or not, please
keep me informed of your product, for I know LOTS of people just 
getting into the flexible secrets of Naplps (and ignoring all advice 
to forget it), who want, short of direct scan-in Naplps format, 
conversion routines.
 
Dave Hughes
Old Colorado City Communications
dave@oldcolo.com
 


Xref: sparky comp.graphics:13001 comp.graphics.animation:1358
From: tlilley@csugrad.cs.vt.edu (Tripp Lilley)
Newsgroups: comp.graphics,comp.graphics.animation
Subject: Re: Realistic 3D Studio usage
Date: 17 Dec 92 16:35:12 GMT
Organization: The MultiMedia Lab at Virginia Tech, Blacksburg, VA

abraxis@iastate.edu (Zomfir Ali) writes:
> If you're looking for a system that can do _real_ graphics work, it has
> been my experience that you must leave the general purpose PC's Mac's and
> Amiga Game Machines behind.  For about the same price as a healthy new 486
> or alot less than a new Mac, look into used SGI systems.  At the high end,
> my roomate just spent $9k for a 210/GTXB. That means around 100,000 
> gourand shaded polygons per SECOND. Compared to 3DStudio 2.0, 50 to 100 poly/s
> Of course, 9k is alot, but I'm looking into used 4D/20TG's for around $3k. 
> That includes 24bit at 1280x1024, 19" monitor, and half gig HD, 
> rendering around 12,000 poly/sec.
> Let's see how a $3000 Mac compares.  Get Real, Get an SGI.
> Abraxis

  your assumption is that he needs to do real-time work.  For real-time (ie:
interactive/simulation) work, you're absolutely right: the SGI line is beyond
compare... but realistically speaking, most people don't need that. I think
(I may very welll be wrong) that the original poster was interested in creating
off-line animation... presumably for production of some sort (tv, multimedia,
whatever) and thus has no need of 100k gouraud triangles/s... and anyway, even
the *low* end SGI boxes can bop a hell of a lot of polys around when you stick
the geometry engine in them... I can grab an Indigo for $5k, but it's a base-
line model, with no engine and 8-bit display... nice for off-line work, but
there are no *good* modelers in my (or presumably, our original poster's)
price range...   I'd agree with the Ami for real work, as well, but I have not
had adequate experience with their modelers... I know they produce 'nice' 
<#include understatement.h> work, though... 

- t.

-- 
 USES disclaim;                                                      |^^\/^^| 2
 Tripp Lilley   -- tlilley@csugrad.cs.vt.edu                         | |\/| |
 The MultiMedia Lab of the Colleges of Architecture and Engineering  |_|  |_|
 Virginia Polytechnic Institute and State University         (silly ASCII logo)
From: gmt@beach.cis.ufl.edu (Gary McTaggart)
Newsgroups: comp.graphics
Subject: Re: Commanche Overkill
Date: 18 Dec 92 07:17:10 GMT
Distribution: comp.graphics
Organization: Univ. of Florida CIS Dept.

In article <KDEACON.92Dec17165633@dante.nmsu.edu> kdeacon@nmsu.edu (DEACON) writes:
>Has anyone seen the graphics for this IBM game, does anyone know how
>it was done?

From looking at the game and looking at the data files, it seems that the
world made up of a 2D array where each element in the array is a color and
height value.  All of the shading is precomputed when the data files are
created. 

--Gary
From: soubrane@irit.irit.fr (Olivier SOUBRANE)
Newsgroups: comp.graphics
Subject: SEARCH Modeling and rendering
Date: 18 Dec 92 15:25:21 GMT
Organization: IRIT-UPS, Toulouse, France


does anybody knows where i can FTP a Mac's Public domain modeling and rendering,
thanks...
From: akin@tuolumne.asd.sgi.com (Allen Akin)
Newsgroups: comp.graphics
Subject: Re: SGI - GL - PHIGS
Date: 17 Dec 92 19:48:33 GMT
Organization: Silicon Graphics, Inc.  Mountain View, CA
NNTP-Posting-Host: tuolumne.asd.sgi.com


In article <1992Dec17.085415.8450@edf.fr>, philippe@cli52gs.edf.fr writes:
> I have heard that the U.S. government want to develop the use
> of PHIGS and GKS. That is why SGI is searching a PHIGS to put
> on top of its GL library.
> 
> Is it true ?

Not to my knowledge.

I've spoken to several government groups about OpenGL in the past few
months.  PHIGS may be a requirement for some government bids, but it's
clearly not a requirement for others.

PHIGS implementations layered on GL have been available for several
years; Figaro+ is an example.

Allen
Newsgroups: comp.graphics,comp.graphics.animation,comp.speech
From: alvin@netcom.com (Alvin H. White)
Subject: Re: G.O.D.S.B.R.A.I.N. Multi-Media Terminal
Keywords: Multi-Lingual Synchronization Audio Video Communications
Organization: Netcom - Online Communication Services  (408 241-9760 guest) 
Date: Fri, 18 Dec 1992 02:31:55 GMT

aorenste@cs.ulowell.edu (Aaron Orenstein) writes:


>> It could be called the G.O.D.S.B.R.A.I.N. Terminal
>... (much description deleted)


>Can I get this as a watch?

I expect that the first implimentations will look like a combination
pocket cellular telephone, Sony type walkman and a hand held
computer.  I guess is they shrink it to the size of the Matel
Power Glove you might call it a watch.  Especially if they include
a Sony type Watchman.

alvin
From: kevinm@ocf.berkeley.edu (Kevin Miller)
Newsgroups: comp.graphics
Subject: Re: Where's the GIF FAQ?
Date: 12 Dec 1992 23:20:04 GMT
Organization: U. C. Berkeley Open Computing Facility
NNTP-Posting-Host: monsoon.berkeley.edu

In article <Bxz5zq.J3K@news.cso.uiuc.edu> rcj41604@uxa.cso.uiuc.edu (Huh!?) writes:
>could someone direct me to a ftp site with an extensive GIF FAQ?
>I've led a protected life, but I've become curious lately, what
>the heck all this stuff called GIF is about...  8-)
>
>   Huh!?  rcj41604@uxa.cso.uiuc.edu

You should be able to find the the files you are seeking (there are 3) at:

		orchid.csv.warwick.ac.uk

Newsgroups: comp.graphics
From: Bob Zigon <bobz@truevision.com>
Subject: PCX & DXF File formats
X-Useragent: Nuntius v1.1
Date: Mon, 14 Dec 1992 14:33:10 GMT
Organization: Truevision, Inc

   Where can I find descriptions of the PCX and DXF file formats?

Bob Zigon
bobz@truevision.com
Xref: sparky comp.graphics:12789 comp.graphics.animation:1293
From: csc@pilot.njin.net (Sean Casey)
Newsgroups: comp.graphics,comp.graphics.animation
Subject: Which do you like better, POV or Rayshade?
Date: 11 Dec 92 19:35:49 GMT
Followup-To: comp.graphics
Organization: The Leaning Tower of Patterson Office @ The Univ. of KY

Could someone who has taken a really close look at both of these
contact me and tell me what you think about them in comparison? I'm
interested in the useability of the rendering language, the richness
of the rendering features, and rendering speed.

Any input is appreciated.

Sean
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: 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!):

I am currently taking a 3D Animation course at UMass @ Amherst, and the
software we use is Adobe Premiere, Adobe Photoshop, and Specular Infini-D/
with Backburner (for rendering over a network).  This all runs on Macs,
and though we have a few quadras, all of it works fine on IIcx's (the
slowest Macs we have in the lab). For the last animation done in the
class (6 mins worth, I think....) there was 4 gigs of files to store, 
so storage would be a problem for large work. 

However, if you wanted to dabble, much of the logo work you see on
television, (especially cheesy local stations) can be done with this
software...and some of it BETTER! The files for that tend to be much
smaller than for complex animations.

With digital editing becoming more and more attainable (I've worked
with editing cards that will play back supercompressed animations (30 fps),
in realtime! Though it was betahardware, suggested price will be about
$5k, which will surely drop and is not unreasonable for an editing studio! 
Maker was radius, I believe.)

For $20,000, I would think you could get yourself quite a nice setup...

-Meko
mkofahl@mhc.mtholyoke.edu



Newsgroups: comp.graphics