HDTenEightyP/NetNews huggingface dataset:
From: davidsen@ariel.crd.GE.COM (william E Davidsen)
Newsgroups: comp.graphics,comp.graphics.visualization,comp.multimedia,comp.org.acm,alt.graphics.pixutils,comp.graphics.animation
Subject: Re: SIGGRAPH to do online electronic publication
Keywords: SIGGRAPH, electronic publication, online, experimental
Date: 8 Jan 93 15:20:29 GMT
Reply-To: davidsen@crd.ge.com (bill davidsen)
Organization: GE Corporate R&D Center, Schenectady NY

In article <1993Jan7.195626.21916@koko.csustan.edu>, rsc@altair.csustan.edu (Steve Cunningham) writes:

|    Following the successful pattern of the SIGGRAPH '91 panels transcripts, 
| we plan to make the contents available in several formats.  Articles may 
| include text, monochrome or color figures, or additional material if it can 
| be used on a wide range of platforms).  In the ftp area, text will be 
| provided in plain ASCII, rtf (rich text format), and PostScript formats, 
| and images will be provided in tiff format and possibly other formats.  
| Versions for e-mail will be in a subset of these formats, with images 
| converted to ASCII formats as far as possible to allow e-mail access.

  This is a good example when GIF may be better than JPEG, and might
even be the optimal choice for this content. GIF does a VERY good job
compressing monochrome images, while JPEG was not designed for this
application and it shows. While GIF is limited to 256 colors,
quantization and dithering can provide an acceptable (if not optimal)
image form 24 bit color, and would probably be a better compromise.

  If a less commonly used format is acceptable, I suppose compressed 24
bit TIFF would be an even better (but larger) solution than GIF.

  This is just a suggestion for this interesting publication, I'm sure
others will have preferences, possibly with some technical
justification.

-- 
bill davidsen, GE Corp. R&D Center; Box 8; Schenectady NY 12345
    Keyboard controller has been disabled, press F1 to continue.
Newsgroups: comp.graphics
From: mccreary@sword.eng.hou.compaq.com (Ed McCreary)
Subject: Re: Stereoptic Pictures?
Organization: Compaq Computer Corp.
Distribution: usa
Date: Tue, 5 Jan 1993 14:36:36 GMT

In article <1993Jan05.062727.29105@mixcom.com> Timothy.Parker <Timothy.Parker@mixcom.mixcom.com> writes:
>
>Mike,
> 
>I don't know if this is exactly what you had in mind but ...
> 
>The USGS - EROS Data Center in Sioux Falls, SD can provide photos
>from the National Aerial Photography Program covering at least the
>48 continental states.  This includes color and B&W photos of
>different scales as well as other misc subjects.  The point I am
>getting to here is that they take the aerial photos in a continuous
>strip and in the N-S direction they overlap by more than 50%, there-
>fore they can be viewed as stereo pairs of the overlapping area.  I
>not sure I explained that well but you probably get the idea.

The USGS also provides digital data on tape and CDROM.  The tapes
are expensive, around $1,000, but the CDROMs are only $32 so depending
on the content.  Call 1-800-USA-MAPS and find the option to get
the package on digital data, it's free.

--
Ed McCreary                                               ,__o
mccreary@sword.eng.hou.compaq.com                       _-\_<,
"If it were not for laughter, there would be no Tao."  (*)/'(*)
Xref: sparky comp.graphics:13585 alt.graphics.pixutils:2873 alt.binaries.pictures.utilities:2400 alt.binaries.pictures.d:6091
From: kxj6@po.CWRU.Edu (Kijin Jung)
Newsgroups: comp.graphics,alt.graphics.pixutils,alt.binaries.pictures.utilities,alt.binaries.pictures.d
Subject: Re: JPEG "Standard"
Date: 8 Jan 1993 22:43:12 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: kxj6@po.CWRU.Edu (Kijin Jung)
NNTP-Posting-Host: thor.ins.cwru.edu


In a previous article, tgl+@cs.cmu.edu (Tom Lane) says:

>
>PS: learn how to do cross-posting properly.  Posting separately to each
>group is NOT the right way --- I still don't know if I have found all the
>groups that you posted in.
>

Sorry, but my newsreader won't permit me to do that. Thanks for the
useful information; everything is much clearer now...

-- 
 __ Kijin Jung ________________________ To affect the quality of the day, __
|   kxj6@po.cwru.edu                 |  that is the highest of the arts.    |
|   Case Western Reserve University  |                                      |
|__ (216) 754-1101 __________________|________________________ -Thoreau ____|
From: ampac@netcom.com (Marc Kulla)
Newsgroups: comp.graphics
Subject: Color Viewing Software (Commercial)
Date: 6 Jan 93 22:06:05 GMT
Organization: AmPac International


I am looking to evaluate packages that will view color compressed images.
I would like the names of any product and/or company that has a software
and/or hardware solution.  I am refraining from Public Domain software
at this time.

Also, I need to capture color images.  Some form of camera and interface
to a PC based system would be desirable.

Any pointers?

Thanks.

Marc
e-mail: ampac@netcom.com
From: guest@molbio.cbs.umn.edu (guest)
Newsgroups: comp.graphics
Subject: Problems with dmorfx
Date: 9 Jan 93 22:18:08 GMT
Organization: University of Minnesota
X-Newsreader: Tin 1.1 PL5


	I have been having problems with the output from dmorfx.  It worked 
OK once, but now the frame files have "junk," random horizontal lines in the
middle.  Here is what I am doing, any help would be appreciated.
Crop a face to 320x200
convert to grayscale  (both with Paint Shop Pro)
Do same with another face
Run RTM.EXE
Run dmorfx file1 file2
use default settings, press GO
Garbage
	The same happens whether I use GIF or TGA for file1 & file2.  E-mail
is preferred, I'll post if enough interest.  Thanks.

Jeramia Ory
ory@dccc.med.umn.edu
Newsgroups: comp.graphics
From: william@lanai.cs.ucla.edu (William Cheng)
Subject: Tgif-2.12-patch16 is available on export for ftp...
Followup-To: william@cs.ucla.edu
Keywords: draw, postscript, latex, hierarchical, x11, xlib, wysiwyg, bitmap
Organization: UCLA, Computer Science Department
Date: Thu, 7 Jan 93 17:42:28 GMT

Happy New Year!!!

I've just put tgif-2.12-patch16 (16 patch for tgif-2.12) in the
following places for anonymous ftp:

	export.lcs.mit.edu:/contrib/tgif-2.12-patch16.Z
	cs.ucla.edu:/pub/tgif/tgif-2.12-patch16.Z

The patch is also posted to comp.sources.bugs.

Tgif is a X-based 2-D drawing tool.

Please uncompress and then apply the patch with
'patch -p -N < tgif-2.12-patch16'.
Here's a short list of added features/bug fixes.

1)  Allow the launch= attribute to be multiline.
2)  Make pasting work in text mode.  The default paste command is still
    <Cntrl><Meta>y.
3)  Add user interrupt when redrawing.  Add a new X default,
    Tgif*IntrCheckInterval to define the number of objects drawn before
    checking for user interrupt.
4)  Fix some memory leaks.  Thanks to Mark Sterin <mark@FibHaifa.com> for
    the fixes.

(running 'sum' on tgif-2.12-patch16.Z on a SUN4 should get: 26024  25)

Please send bug reports to william@cs.ucla.edu.
-- 
Bill Cheng // UCLA Computer Science Department // (310) 645-8328
3564-C Boelter Hall // Los Angeles, California 90024 // USA
william@CS.UCLA.EDU      ...!{uunet|ucbvax}!cs.ucla.edu!william
Newsgroups: comp.graphics
From: pfk@rz.uni-jena.de (Frank Klemm)
Subject: Slide scanner
Organization: Friedrich-Schiller-University Jena, Germany
Date: Wed, 06 Jan 1993 20:08:28 GMT

Hi folks,
I need a scanner for slides to archive thousands of slides.
These slides has a format of 60 mmx60 mm. I want to scan these
slides with an resolution better than 1000 dpi. Is there any
scanner known with this features? Prices are also welcomed.
Thanks in advance.

Frank

+-----------------------------------------------------------------------------+
| eMail | Frank.Klemm@Physik.Uni-Jena.de || pfk@hpux.rz.uni-jena.de           |
| sMail | Frank Klemm, Wiesestr. 27, D-O-6500 Gera, Germany/Europe            |
| Tel.  | +49 (365) 52712, from Germany: (0365) 52712                         |
+-----------------------------------------------------------------------------+
| Objoke: Keyboard not connected, press F1 to continue ...                    |
+-----------------------------------------------------------------------------+
PS: Please repeat the question(s) before you answer the question(s).
    Please reply via eMail

Newsgroups: comp.graphics
From: abstine@toy4x4.visix.com (Art Stine)
Subject: Re: Touch Screens
Date: Wed, 6 Jan 1993 22:55:50 GMT
Reply-To: abstine@visix.com
Organization: Visix Software Inc.
Followup-To: abstine@toy4x4.visix.com


In article <1993Jan5.232216.6435@desire.wright.edu>, dbrackman@desire.wright.edu writes:
From: dbrackman@desire.wright.edu
Newsgroups: comp.graphics
Subject: Re: Touch Screens
Date: 5 Jan 93 23:22:16 EST
Organization:  Wright State University 

In article <1993Jan2.195959.21840@spang.Camosun.BC.CA>, morley@suncad.camosun.bc.ca (Mark Morley) writes:
> About a year ago I saw someone demonstrate a touch screen that simply
> fitted over a regular 14" VGA monitor.  It converted the "touches" into
> mouse signals.  In other words, once you have written software to work
> with a Microsoft mouse you don't have to change anything to make it work
> with this touch screen.  Did that make sense?  Anyway, I can't remember
> who made it or how much it cost, etc.  If anyone out there has any info on
> this or similar products, I'd be most interested in getting it.  Also, if
> you have ideas for other touch screens or alternatives I'd like to hear them.
> 

DEC markets a touch screen that turns any display into a touch screen. Its
a device that you place your monitor on top of and then calibrate to the
dimensions of the screen. Its pretty cheap (I think less than $1K) and it
works with any monitor.

-art stine
software engineer
visix software
abstine@toy4x4.visix.com

Newsgroups: comp.graphics
From: mrob@world.std.com (Robert P Munafo)
Subject: ASCII "graphics" and text displays used by newsreaders.
Summary: I'd like to do a survey; any objections?
Keywords: ASCII graphics text aspect-ratio
Organization: The World Public Access UNIX, Brookline, MA
Date: Wed, 6 Jan 1993 17:43:46 GMT


I have developed software that converts black-and-white bitmap images of
the Mandelbrot Set into text-oriented ASCII                          -,      
graphics, like the little example shown here.  In                   ._7/,    
order for the algorithm to work well, an                         ._.-" '-_.. 
assuption must be made concerning the "aspect             :_ ,, :r`       `\_
ratio" (height-to-width ratio) of the text               ,a7~^~\/          ]`
characters in the final display format. Because    -----*(%,   .          -: 
I am interested in using these text images to            `:)/_/~\          'c
illustrate my messages on the Internet, I have            '  `  '",_     _,/^
decided that it would be a good idea to survey                   '^'^r.:^^'' 
USENET readers and collect data concerning aspect                    ^)\`    
ratios and types of equipment/software/etc that                      ^`      
are used.
 
Please let me know if you think a survey would be a *bad* idea.  I intend
of course, to use E-mail for replies and to post the results when they are
available.  The survey does not require the reader to make measurements or
calculations.
-- 
mrob's .sig #4 |                                            '^`^` T_,       .-`
collect all 5! |    Internet: mrob@world.std.com                   "r"-, .---F
Newsgroups: comp.graphics
From: aorenste@cs.ulowell.edu (Aaron Orenstein)
Subject: Re: Perspective transformation question
Organization: Interactive Media Group - University of Massachusetts at Lowell
Date: Tue, 12 Jan 1993 21:19:54 GMT

In article <1993Jan11.145732.6480@mnemosyne.cs.du.edu>, astoker@nyx.cs.du.edu (Andrew Stoker) writes:
-> In the equations typically given for the transformation, a parameter D
-> representing distance to the viewing screen/plane is used:
-> 
-> 	xs = d * x / z
-> 
-> What "units" is D in?
-> --
-> Andrew J. Stoker | "My lord, I cannot ride!"
-> Leicester Uni.   | "Capital, we shall give you a horse that can't be ridden."
-> ajs6@leicester.ac.uk   |		      ``Wyrd Sisters'', Terry Pratchett

	As far as I ever understood, D is the foreshortening ratio.  It should be somewhere in the range of 1 to z.  If it is 1, then you get the most "perspective" and lines in the distance seem MUCH closer to the center than lines which are nearer the viewer.  If D is equal to z, then you get a parallel projection.

-- 
--------------------
"The Code is free, It's the comments that cost a lot..."
Aaron Orenstein	(aorenste@cs.ulowell.edu, 129.63.1.11)
From: hlf@nic.cerf.net (Howard Ferguson)
Newsgroups: comp.graphics
Subject: Re: Touch Screens
Date: 9 Jan 1993 22:24:46 GMT
Organization: CERFnet Dial n' CERF Customer Group
NNTP-Posting-Host: nic.cerf.net

In article <1993Jan2.195959.21840@spang.Camosun.BC.CA> morley@suncad.camosun.bc.ca (Mark Morley) writes:
>About a year ago I saw someone demonstrate a touch screen that simply
>fitted over a regular 14" VGA monitor.  It converted the "touches" into
>mouse signals.  In other words, once you have written software to work
>with a Microsoft mouse you don't have to change anything to make it work
>with this touch screen.  Did that make sense?  Anyway, I can't remember
>who made it or how much it cost, etc.  If anyone out there has any info on
>this or similar products, I'd be most interested in getting it.  Also, if
>you have ideas for other touch screens or alternatives I'd like to hear them.
>


We are building a system using a touch screen which uses infared beams
infront of the screen. We use a flat screen, so I do not know if there
would be problems with a curved monitor ( since light travels in 
straight lines, most of the time). we havbe had custom work done
for  us by Carroll Touch (tel (512) 244-3500 Adres - P.O. Box 1309,
Round Rock, Texas 78680). We have been very satisfied with their work
so far. The screen connects to a board they supply, and drivers were
availabble us to drive Microsoft windows with it as if it were a mouse.

I do not know if they do any off the shelf products.


	hlf

Newsgroups: comp.graphics
From: jerry@truevision.com (Jerry Thompson)
Subject: Re: Targa 16 software for DOS/WINDOWS?
Date: Mon, 11 Jan 1993 22:57:12 GMT
Organization: Truevision Inc., Indianapolis, IN

grant@Manticore.COM (Grant J. Munsey) writes:
>I have an old Targa 16 that I would like to use under Windows and or Dos.
>Anybody have pointers to PD software for this combination? Thanks,

There is no Windows driver for the original TARGA16 only for the new
TARGA+ boards.  You can check out our section on CompuServe, section 6
of the Multimedia Vendor Forum, for TARGA16 utilities.  Let me know if
you want a free month of CompuServe to try it out.  We also have a 
Developers Toolkit for the TARGA16.  It is $25 and you can contact me
if you are interested in getting that.

-Jerry Thompson
Truevision Developer Marketing


-- 
Jerry Thompson                      |     // checks  _________  |"I'm into S&M,
What I want to know is, have you    | \\ //   and    |   |   |  | Sarcasm and
ever seen Claude Rains?   !CCR      |  \X/ balances /_\  |  /_\ | mass sarcasm."
Newsgroups: comp.graphics
From: e-sink@uiuc.edu (Eric W. Sink)
Subject: Re: SDSC Image Tools source
Originator: sink@ux2.cso.uiuc.edu
Reply-To: e-sink@uiuc.edu
Organization: University of Illinois at Urbana
Date: Thu, 7 Jan 1993 14:45:32 GMT

Dave Nadeau posted two excellent articles about the SDSC tools.  This
is really a followup to both.

I enjoyed reading both of these.  I certainly am not in agreement
with everything written, but I now free that I have an understanding
for the point of view SDSC has taken.

Although I make every attempt to be well behaved net.person, a few
weeks ago I posted a message which was apparently worded a bit to
coldly for some.  It was interpreted as somewhat offensive; a slam
against the SDSC tools, because I said that I wasn't at all interested
in the tools without full source code.  I still prefer having the full
source, but I now am interested, and plan to obtain the tools.  The
explanations in the first of Dave's articles helped considerably.
Being primarly involved in scientific visualization, it is clear that
the SDSC tools are deserving of a closer look.

I still contend that free software should come with full source, but
only because I would also content that free software should NOT be
supported to the extent the SDSC is attempting.

Given the fact that SDSC is attempting to provide tech support, I
certainly would not release the source either.  I simply don't think
SDSC should be providing support.  I'm amazed that they can afford it.

My paradigm for software, right or wrong, says that tech support is
provided with commercial products, and free software comes with source
in lieu of support.  Providing free software with support feels like
a hybrid, and makes about as much sense to me as selling commercial
software with source.  Here again, that's just the tint on my world-view
glasses.

I still plan to check the tools out.  It sounds like classy software.

Thanks Dave, for the posts.

-- 
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: raeag@kittyhawk (Andrew Gockel)
Newsgroups: comp.graphics
Subject: GKS on X11
Summary: Displaying VAX/GKS on X11
Keywords: GKS X11 VAX
Date: 13 Jan 93 05:07:05 GMT
Organization: RMIT Computer Centre
NNTP-Posting-Host: kittyhawk.aero.rmit.oz.au

Does anyone know of a public domain utility that will allow GKS type graphics to be displayed on a Xterm or similar coming off a VAX running VMS ?

Thanks

andrew@rmit.edu.au
Newsgroups: comp.graphics
From: wongw@cs.curtin.edu.au (Wai Kwong Wong)
Subject: Help!!! Radiant Air Temperature
Summary: Searching for algorithm to simulate radiant air temperature in a room
Keywords: Searching for algorithm of Radiant Air temperature
Organization: Curtin University of Technology
Date: Tue, 12 Jan 1993 09:24:44 GMT

                        HELP!!!
                        -------

                RADIANT AIR TEMPERATURE


I am doing a project on simulation of radiant air temperature inside an 
enclosure. I have get the following journals:-
 
        -Olesen et. al., Method for Mesuring and Evaluating the Thermal
                         Radiation in a Room.
                         ASHARE Transactions, CH-89-17-4, (1989)
 
        -M G Davies, Room heat needs in relation to comfort temperature:
                     Example using the rad-air model
                     Building Serv. Eng. Res. Technol. 12(3) 107-110 (1991)
 
        -M G Davies, Rad-air temperature: The global temperature in an enclosure                     Building Serv. Eng. Res. Technol. 10(3) 89-104 (1989)
 
 
as well as algorithms:-
 
        -Berch & Peavy, An Algorithm for Calculating Radiation Shape Factors 
                        Between Inside Surfaces of a Room
                        ASHARE Procedure for Determining Heating and Cooling
                        Loads for Computerizing Energy Calculations 57-74 (1975)

I would be most grateful if anyone who is doing similar research on this tropics 
or has any information/publication about it to send me a mail on to give me some
advise. My email address is:-

        wongw@cipal.cs.curtin.edu.au
        ----------------------------

Thank you!

Newsgroups: comp.graphics
From: theruvak@IASTATE.EDU (Philip Theruvakattil)
Subject: Winged-edge data struct. in c 
Reply-To: theruvak@IASTATE.EDU (Philip Theruvakattil)
Organization: Iowa State University
Date: Tue, 5 Jan 1993 18:16:03 GMT

 
Hello:
         I need to use a winged-edge data structure as part of my research. I
want to know if anybody has any public domain code (c-language) for the
winged-edge data structure or could you let me know where it is availalble.
Thank you for any help.

Philip T.
theruvak@iastate.edu
From: ninja@willard.atl.ga.us (Sonic Druid)
Newsgroups: comp.graphics
Subject: graphics lib/patch for Turbo C++ and/or Quick Basic
Date: Tue, 05 Jan 93 01:27:58 EST
Organization: Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814

 
  I'm looking for either a library or a patch for Turbo C++
or Quick Basic, but preferrably Turbo C++, which would allow
me to use more than  1 foreground color or 2 colors total in
the [ 640 x 200 ] CGA graphics mode.....
 
  all I have available is a CGA card/monitor and my application
will be icon/mouse driven, so the more colors the better....
 

-- 
ninja@willard.atl.ga.us (Sonic Druid)
gatech!vdbsan!willard!ninja
emory!uumind!willard!ninja
Willard's House BBS, Atlanta, GA -- +1 (404) 664 8814
Newsgroups: comp.graphics
From: sloan@cis.uab.edu (Kenneth Sloan)
Subject: Re: Polygon-polygon intersection
Organization: CIS, University of Alabama at Birmingham
Date: Mon, 4 Jan 1993 19:54:36 GMT

In article <7418@tivoli.UUCP> twb@tivoli.com (Tom Bereiter) writes:
>I'm looking for an efficient test for whether two 2D polygons intersect.
>The brute force approach seems to be: do a point-in-polygon test for each
>point of polyA in polyB, but if that says false you still have to check for
>line intersections.  This feels like the sort of problem, like area of
>a polygon, which has a non-obvious trivial answer.
>
Sorry, but I don't think there is a "non-obvious trivial answer".  In
the final analysis, I think you need:

    *for all Va - is Va inside Pb
    *for all Vb - is Vb inside Pa
    *for all Ea - does Ea interect any Eb

But - depending on your distribution of polygons, there may be numerous
"quick kills" - usually "trivial reject"-type tests.  Whether trying
these first is "efficient" or not depends on your set of polygons.

I would try (in order):

    *X-overlap
    *Y-overlap
    *all Va outside convex hull of Pb
    *all Vb outside convex hull of Pa

and then bite the bullet and go for the three tests above.

But....this is probably only worthwhile if your polygons are complicated
(have a lot of vertices, or are concave).  If your polygons are
triangles, or convex quadrilaterals...start with brute force.


-- 
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
Newsgroups: comp.graphics,sci.engr