HDTenEightyP/NetNews huggingface dataset:
From: alexlehm@iti.informatik.th-darmstadt.de (Alexander Lehmann)
Subject: Re: How to save as a GIF (or other image format)?
Date: Tue, 6 Oct 1992 14:45:02 GMT
Distribution: comp.graphics.gnuplot
Organization: TH Darmstadt

vonk@cs.rochester.edu (Peter VonKaenel) writes:
> 
> Hi,
> 
> 	I usually use gnuplot on a Sun and save graphs as ps to be
> included into a TeX document.  Now I have an OS/2 version of gnuplot
> and need to stick some graphs into a WordPerfect document.  So, my
> question is, how do I save a graph in a form other than ps?  I have
> a program that can convert image types, so if I can save a graph as a
> GIF, PCX, BMP, etc., from gnuplot, that would be great.  Does anyone
> know how to do this (or even how to convert ps to GIF)?
> 
> Thanks,
> Peter von Kaenel  (vonk@cs.rochester.edu)

Since there are so many different types of image formats, it seems somewhat
pointless to arbitrarily choose a few and include them in gnuplot. You can,
however, get the really great PBMplus package written by Jef Poskanzer.
Since gnuplot supports pbm, pgm and ppm (mono, gray and color portable bit
maps), you can create an appropriate bitmap which then can be converted to
almost any image format (at least to all the common ones), including gif.

(the most current version of pbmplus is 10dec91, check archie)

If you really want to convert ps images to gif (aside from gnuplot), you'll
have to get the ghostscript package which includes a gs2pbm program.

-- 
Alexander Lehmann                      | "Wopp"
alexlehm@iti.informatik.th-darmstadt.de|         -  ( THHGTTG Pt.3 )
From: mccauley@ecn.purdue.edu (Darrell McCauley)
Newsgroups: comp.graphics.gnuplot
Subject: version 3.3?
Date: 2 Oct 92 02:06:31 GMT
Organization: Ag Engineering Dept, Purdue University

When is a new version due?
-- 
James Darrell McCauley                    Dept of Ag Engineering, Purdue Univ
internet: mccauley@ecn.purdue.edu         West Lafayette, Indiana 47907-1146
bitnet: mccauley%ecn@purccvm              UUCP: pur-ee!mccauley
Newsgroups: comp.graphics.gnuplot
From: aicklen@utdallas.edu (Greg Aicklen)
Subject: GNUplot for MS Windows?
Organization: Univ. of Texas at Dallas
Date: Fri, 2 Oct 1992 17:19:34 GMT


Does anyone know of an implementation of gnuplot that will run under MS
Windows.  I already have the DOS version, but I'd like to have a version
for Windows that operates much as the X-11 version does.

Greg Aicklen
University of Texas at Dallas
School of Engineering and Computer Science
Newsgroups: comp.graphics.gnuplot,comp.os.os2.apps
From: gyan@unixg.ubc.ca (Gyan P. Sinha)
Subject: Gnuplot helpfile in OS/2 Hypertext format.
Summary: Gnuplot helpfile available in OS/2 inf format.
Keywords: Gnuplot, OS/2, Hypertext links.
Organization: University of British Columbia, Vancouver, B.C., Canada
Date: Mon, 5 Oct 1992 21:49:22 GMT


I've uploaded to ftp-os2.nmsu.edu, in /pub/uploads, the gnuplot help
file converted to OS/2 inf format, with hypertext links. A short summary
is in gnuplot.inf.doc, while the file itself is gnuplot.inf.

Hope its useful.

Gyan P. Sinha
UBC, Vancouver.
From: pk@cs.tut.fi (Kellom{ki Pertti)
Newsgroups: comp.graphics.gnuplot
Subject: Re: Gnuplot on LINUX with X11
Date: 2 Oct 92 12:02:39
Organization: Tampere Univ. of Technology, Finland.
Distribution: world
NNTP-Posting-Host: talitiainen.cs.tut.fi
In-reply-to: tdunbar@vttcf.cc.vt.edu's message of 2 Oct 92 03:20:09 GMT

You can use gnuplot with X without the X support simply by setting the
terminal to vttek and running gnuplot in xterm. xterm will pop up a
tektronix emulation window.
--
Pertti Kellom\"aki (TeX format)  #       These opinions are mine, 
  Tampere Univ. of TeXnology     #              ALL MINE !
      Software Systems Lab       #  (but go ahead and use them, if you like)


Newsgroups: comp.graphics.gnuplot
From: bcr@cernapo.cern.ch (Bill Riemers)
Subject: Commercial messages
Organization: CERN, European Research Center for High Energy Physics
Distribution: comp.graphics.gnuplot
Date: Fri, 2 Oct 1992 21:59:05 GMT

Within an hour of putting my first post in this news group, someone
mailed me a message trying to sell some sort of software service.
Isn't this illegal? Afterall, they are trying to use government money
for personal finiancial gain...  If not, it sure is ignoying.  
Obcourse, I counter flammed with hundreds of empty messages, but his
news reader could easily filter these.  Has anyone else had the
same problem.

                                  Bill

Newsgroups: comp.graphics.gnuplot
From: gershon%irit.cs.utah.edu@cs.utah.edu (Elber Gershon)
Subject: Re: surface plot on nonuniform rectangular grid?
Date: 2 Oct 92 12:33:11 MDT
Organization: University of Utah CS Dept

In article <galick.718005361@ceg.uiuc.edu> galick@ceg.uiuc.edu (Albert Galick) writes:
>Is there a trick I could use to get splot to do what NCAR srface does?
>With hidden line removal, log/linear autoscaled axes, labels and arrows?

Not sure what NCAR does, but I will try to address the nonuniform grid
issue. Basically, gnuplot does not support this representation at this time.
	One can write a simple filter that generates a rectangle grid from
a non rectangle one. The simple approach would be to compute the value of
each point in the created uniform grid as a weighted sum of all the nonuniform
original grid points. The weights can be computed as a (inverse) function
of the distance computed between the uniform and nonuniform two grid points,
by some norm. This technique only approximates the original nonuniform grid.
If it is required to interpolate the points, different methods should be
used.
	I would be interested to see some examples of nonuniform grid files,
in which such approximation method would be sufficient so I can try and test
these ideas.
	
Gershon
/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
Elber Gershon                            gershon@cs.utah.edu
918 University village                   Tel: (801) 582-1807 (Home)
Salt Lake City, Utah 84108-1180          Tel: (801) 581-5642 (Work)
From: neve@nlm.nih.gov (Leif Neve)
Newsgroups: comp.graphics.gnuplot
Subject: Terminal Type and $DISPLAY
Date: 6 Oct 92 17:50:56 GMT
Reply-To: neve@nlm.nih.gov
Organization: National Library of Medicine

When I run gnuplot with $DISPLAY set in my environment,  the monitor
comes up with my terminal set to type X11. I would expect that I would
get the same result by starting up gnuplot with the -display option, but I don't.

Am I doing something wrong? 

Is this a bug?

Leif Neve
Newsgroups: comp.graphics.gnuplot
From: eshc@elijah.ee.ic.ac.uk (Eric Cheung)
Subject: Re: How to save as a GIF (of other image format)?
Organization: IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE, LONDON.
X-Newsreader: Tin 1.1 PL5
Distribution: comp.graphics.gnuplot
Date: Mon, 5 Oct 92 09:50:38 BST

Peter VonKaenel (vonk@cs.rochester.edu) wrote:
: 
: Hi,
: 
: 	I usually use gnuplot on a Sun and save graphs as ps to be
: included into a TeX document.  Now I have an OS/2 version of gnuplot
: and need to stick some graphs into a WordPerfect document.  So, my
: question is, how do I save a graph in a form other than ps?  I have
: a program that can convert image types, so if I can save a graph as a
: GIF, PCX, BMP, etc., from gnuplot, that would be great.  Does anyone
: know how to do this (or even how to convert ps to GIF)?
: 
: Thanks,
: Peter von Kaenel  (vonk@cs.rochester.edu)

Firstly, gnuplot can write ppm (portable pixmap) files.  I don't use OS/2,
so can't suggest converter.  But I use 'xv' on the Sun.

Also, you can use 'ghostscript' to convert from ps to a variety of graphics
formats.  Again, don't know availablity on OS/2, but definitly DOS, Windows and
UNIX versions exists.

I hope this isn't too much 'such and such is good, but you can't use it'.
I just guess you can use DOS as well?  If not, my apology.
Oh, ghostscript is in simtel20, postscript drirectory, gs252*.zip.

Eric
Newsgroups: comp.graphics.gnuplot
From: ravi@evax11.eng.fsu.edu (CHELLA)
Subject: Curve smoothing
News-Software: VAX/VMS VNEWS 1.3-4   
Keywords:  Curve Smoothing
Reply-To: ravi@evax11.eng.fsu.edu
Organization: Florida State University Computing Center
Distribution:  world
Date:  6 OCT 92 10:48:22    

	Gnuplot 3.0 has options for smoothing contour plots using
the `cubicspline` and `bspline` parameters. Are there similar
capabilities for two-dimensional curve plotting? Thanks.

				Ravi Chella
				chella@scri.fsu.edu
From: eric@tantalus.nrl.navy.mil (Eric Youngdale)
Newsgroups: comp.graphics.gnuplot
Subject: Re: Gnuplot on LINUX with X11
Date: 1 Oct 92 20:06:49 GMT
Organization: Naval Research Laboratory

In article <6641@blue.cis.pitt.edu.UUCP> broadley@neurocog.lrdc.pitt.edu writes:
>Anybody know of a port of Gnuplot to Linux to run under X11??
>
>I already found a version that clears the screen and writes directly to the vga.

	You don't need a port.  Just "cp makefile.unx Makefile", and "make
All".  I think that in the end I might have had to comment out a prototype for
sys_errlist or some such because the prototype in the system header did not
quite match.

-Eric
-- 
Eric Youngdale
Newsgroups: comp.graphics.gnuplot
From: saeed@a.cs.okstate.edu (SAEED FAISEL)
Subject: what do you know about IDS model ?
Organization: Oklahoma State University, Computer Science, Stillwater
Date: Sun, 4 Oct 92 23:09:57 GMT

I need some info on the IDS model suggested by Cornsweet & Yellot.
And I want to start with a comprehensive bibliography on IDS.

Any email containing any pointers like any work done related to IDS,
specially any publications, etc will be appreciated.

I would also like to correspond with anyone currently working on it.



-- 

Faisel Saeed
Computer Science Department,   Oklahoma State University,   Stillwater, OK 
---------------------------------------------------------------------------
Newsgroups: comp.graphics.gnuplot
From: shenoy@iastate.edu (Shiva Shenoy)
Subject: Re: GNUplot for MS Windows?
Organization: Iowa State University, Ames IA
Date: Mon, 5 Oct 1992 21:31:18 GMT

In <yrdpd#p@lynx.unm.edu> jdaves@triton.unm.edu (Jonathan Daves-Brody) writes:

>In article <1992Oct5.161044.18826@dazixco.ingr.com> naftaly@dazixco.ingr.com writes:
>>
>>In article <5815@tuegate.tue.nl>, ronald@lowt.phys.tue.nl (Ronald Aarts) writes:
>>>cjwein@watcgl.uwaterloo.ca (Chris J. Wein) writes:
>>>
>>>>>Does anyone know of an implementation of gnuplot that will run under MS
>>>>>Windows.  I already have the DOS version, but I'd like to have a version
>>>>>for Windows that operates much as the X-11 version does.
>>>
>>>>There is one on ftp.cica.indiana.edu.  I got in the uploads directory a
>>>>while back so it has likely moved but it is there.  It works just like the
>>>>X11 version!
>>>
>>>I couldn't find it. Is there somebody out there who has a more precise pointer
>>>to this MS-Windows version of GnuPlot.
>>>
>>>By the way: I'd also appreciate a pointer to a recent DOS version (compiled
>>>binary) of GNUplot. 
>>>
>I tried to get that version, but was unable to decompress the executable part
>of it - pkzip claimed errors.  It did unzip the textfile parts of the zipped
>file, just not the executables.  Has anybody else had this problem?  Is it
>a problem with the file on Cica?  Is it a problem with my version of pkzip?
>I tried downloading it several times, all with identical results.

>I've been waiting for this newsgroup to ask that very question!

It is still in the pub/pc/win3/uploads directory at ftp.cica.indiana.edu
I just retrieved it and checked to see if I could extract the files. I did
not have any problem doing that. Try again.

-- 
Shiva Shenoy                           | e-mail: shenoy@iastate.edu 
2066 Black,                            | Office: (515)-294-0082
Dept. of Aero. Engg. & Engg. Mechanics | Home  : (515)-296-7640
Iowa State University, Ames, IA 50010  |
Newsgroups: comp.graphics.gnuplot
From: dwagon@nella10.cc.monash.edu.au (Dougal Scott)
Subject: Re: writing PostScript and Hidden Surface Removal
Organization: Monash University, Melb., Australia.
Date: Fri, 2 Oct 1992 04:48:35 GMT

bandari@cs.ubc.ca (Esfandiar Bandari) writes:


>Two questions from a naive user. 

>	1. How do I convert a file containing gnuplot data into PostScript? 
>	(or even get gnuplot to write postscript files)

To save the output as postscript,
set terminal postscript
to save the output into a file rather than stdout
set output "filename"

>	2. Is there a way to tell gnuplot to do hidden surface removal?

set hidden3d
-- 
Dougal Scott-Dougal.Scott@fcit.monash.edu.au  Faculty of Computing & Info Tech
I am eager for the pleasures of the flesh more    Monash University, Caulfield
than for salvation, my soul is dead, so I shall            Victoria, AUSTRALIA 
look after the flesh. -Carmina Burana
Newsgroups: comp.graphics.gnuplot
From: kurt@dfv.rwth-aachen.de (Kurt Essigmann)
Subject: best fit and gnuplot?
Keywords: gnuplot
Organization: Communication Networks
Date: Tue, 6 Oct 1992 12:56:33 GMT

I have to fit a curve to 20 (x,y) values. In the manual 
there is the option "set cntrparam bspline" or  cubicspline" described working 
only with splot(3d). Is there a possibility to plot a best fit in 2d?

 thanx.  
-- 
| Kurt Essigamnn       	Communications Networks, RWTH Aachen                  |
| Ruetscherstr. 155     Kopernikusstr. 16, D-5100 Aachen, Germany             |
| 5100 Aachen	        kurt@dfv.rwth-aachen.de || kurt@rog.rwth-aachen.de    |
| Tel: +49-241-156251						              |
Newsgroups: comp.graphics
From: pmueller@ux4.cso.uiuc.edu (Pete Mueller)
Subject: Re: public domain raytracings programs
Organization: University of Illinois at Urbana
Date: Mon, 28 Sep 1992 21:29:11 GMT
Keywords: raytrace

52kaiser@sol.cs.wmich.edu (Matthew Kaiser) writes:

>hello

>i'm looking for public domain raytracing programs and their sites where

>i can get the latest versions.

The most functional ray-tracer I've seen for DOS is POVRay.  While it
is not the best raytracer (becuase it has no front end) it has a very
good syntax (C-like) and many support modules.

Just released was the new version (ver 1.0) and I've seen it on
wuarchive, amoung others.

-pete

-- 
Peter Mueller                                | In the event of an atomic
pmueller@ux4.cso.uiuc.edu                    | attack, the federal rule
pmueller@sumter.cso.uiuc.edu <--- NeXT Mail  | concerning prayer will be
DISCLAIMER: Help! Help! I'm being Repressed! | temporarily suspended.
Xref: sparky comp.graphics:10120 alt.binaries.pictures.utilities:1159
From: govind@point.cs.uwm.edu (Govind Seshadri)
Newsgroups: comp.graphics,alt.binaries.pictures.utilities
Subject: .PIX format ?
Date: 30 Sep 1992 02:05:57 GMT
Organization: University of Wisconsin, Milwaukee
Distribution: world
NNTP-Posting-Host: 129.89.2.5

 I am working with some code that uses images stored in the 
 .pix format. Can anyone enlighten me about what exactly this
 format is ?
 Also, can anyone mail me a convertor or give me pointers to
 any utility which does the following conversion  :

 .GIF to .PIX to .GIF


Thanks in advance.


Govind
From: Lee_Robert_Willis@cup.portal.com
Newsgroups: comp.graphics
Subject: Wanted: Winged-Edge topology reference
Date: Tue,  6 Oct 92 19:26:41 PDT
Organization: The Portal System (TM)
Distribution: world

Hi,

I'm looking for documentation for an algorithm.  I unfortunately don't 
know the proper name for the algorithm, which makes doing literature
searches nearly impossible.  I'm hoping someone here recognizes it.

"Graphics Gems II" contains a chapter on maintaining "Winged-Edge" data
structures for 3D models.  I'm looking for the equivalent data structure
for 2D networks.  I have heard this called "Winged-Edge" and also "Arc-Node
topology".

The concept is that of a 2D planar graph, where anyplace two edges cross
there is a node.  Polygons exist withing closed loops of edges, and the sum
of all polygons exactly covers the entire graph's area, with no overlaps or
holes.  This data structure is often used in Geographic Information Systems.

I'm interested in locating a good source which describes the data structures
and algorithms needed to build and manipulate such a structure.  Anyone know
of such a book?

Thanks!
Lee         Lee_Robert_Willis@cup.portal.com
From: erich@eye.com (Eric Haines)
Newsgroups: comp.graphics
Subject: Re: raytracing swept objects
Date: Fri, 25 Sep 92 15:59:07 GMT
Distribution: comp
Organization: 3D/EYE, Inc.  Ithaca, NY

In article <BAGCHI.92Sep22220950@quip.eecs.umich.edu> bagchi@eecs.umich.edu (Ranjan Drzzzzt!  Bagchi) writes:
>
>	Consider this object:  I take a curve between two endpoints, and rotate
>it 360 degrees about the y axis.  How would I go about ray-tracing the solid
>I've just swept out.  
>
>	I've given this some thought.. and I'm fairly sure that in 
>the general case, this is quite difficult.  But are there any classes
>of curves which sweep out solids which are easy to get
>ray-intersections and surface normals?

My favorite (and the most directly applicable) is the van Wijk article in ACM
TOG, but here's a whole bunch from my ray tracing bibliography (see the FAQ
for more info).  I leave it to Mr. Speer to list all the ones I've missed -
he's more involved in this cross-referencing business - but these should get
you started.

Eric Haines


%A Willem F. Bronsvoort
%A Fopke Klok
%T Ray Tracing General Sweep-Defined Objects
%R 84-36
%I Dept. of Mathematics and Informatics, Delft U. of Tech.
%C Delft, Netherlands
%D 1984

%A Willem F. Bronsvoort
%A Peter R. van Nieuwenhuizen
%A Frits H. Post
%T Display of Profiled Sweep Objects
%J The Visual Computer
%V 5
%N 3
%D June 1989
%P 147-57

%A K.C. Hui
%A S.T. Tan
%T Display Techniques and Boundary Evaluation of a Sweep-CSG Modeller
%J The Visual Computer
%V 8
%N 1
%D Nov. 1991
%P 18-34

%A Jarke J. van Wijk
%T Ray Tracing Objects Defined by Sweeping Planar Cubic Splines
%J ACM Trans. on Graphics
%V 3
%N 3
%D July 1984
%P 223-37
%K prisms, cones, surfaces of revolution, object intersection, spline

%A Jarke J. van Wijk
%T Ray Tracing Objects Defined by Sweeping A Sphere
%B Eurographics '84
%I Elsevier Science Publishers
%C Amsterdam, North-Holland
%D Sept. 1984
%P 73-82
%K object intersection
%O reprinted in Computers and Graphics, Vol 9. No 3, 1985, pp. 283-290

%A Jarke J. van Wijk
%T On New Types of Solid Models and Their Visualization with Ray Tracing
%R PhD Thesis
%I Delft U. of Tech, Netherlands
%D 1986
Newsgroups: comp.graphics
Subject: Re: X-rated GIFs
From: jhsegal@wiscon.weizmann.ac.il (Livy)
Date: Sun, 27 Sep 1992 08:21:19 GMT
Organization: Weizmann Institute of Science, Computation Center

In article <1992Sep25.143451.3839@reks.uia.ac.be> dbruyne@reks.uia.ac.be (Karel De Bruyne) writes:
>How about buying a cheap handscanner, scan some real
stuff deleted      \^^^^^^^^^^^^^^^^^/
                    ------\/---------
                      There ISN'T such a thing as cheap handscanner....
		      the cheapes is still expensive,and it transsfers pictures
		      in a horrible way!!

 ---------------This Was Another L I V Y ' S  Production----------------------

  __     __  __    ___ __     _     ___   __
    |      |   \     /   |     \       \    | VM/CMS:
    |      |    \   /    |    _ \       \   | JHSEGALL @ Weizmann.weizmann.ac.il
    |___   |       /     |    _  \    |  \  | UNIX:
        |  |      /      |   /    \   |     |  JHSEGAL  @ Wiscon.weizmann.ac.il

Xref: sparky comp.graphics:10229 comp.compression:3450
From: govind@point.cs.uwm.edu (Govind Seshadri)
Newsgroups: comp.graphics,comp.compression
Subject: raw RGB bytes from GIF file ??
Date: 4 Oct 1992 01:09:08 GMT
Organization: University of Wisconsin, Milwaukee
Distribution: world
NNTP-Posting-Host: 129.89.2.5


Is there some source out there that will generate raw RGB bytes 
from an input GIF source file ?
I would be happy to receive any suggestions/pointers towards this.

Thanks much in advance.

Govind
Newsgroups: comp.graphics
From: jyang@eoc.com (Jun Yang)
Newsgroups: comp.graphics
Subject: JPEG?
Date: 5 Oct 92 17:03:52 GMT
Article-I.D.: eoc.1992Oct5.170352.17802
Organization: EO, Inc.


Does anyone know how to get the specification of JPEG?
Thanks.

Jun
Newsgroups: comp.graphics
From: kortink@cs.utwente.nl (John Kortink)
Subject: Re: X-rated GIFs
Organization: University of Twente, Dept. of Computer Science
Date: Sat, 26 Sep 1992 17:53:02 GMT

In article <herman.717468442@phage> herman@nosc.mil (John W. Herman) writes:
>
>--
>I don't know about Europe, Asia, etc. but putting X-rated pictures on aa
>net connected to NSF Net gets your site disconnected.  If your college
>gets kicked off, the poster might not be popular among his peers and the
>faculty.  Check with your system adminstrator before putting up any
>pictures that might get you in trouble.

I'm not into these kinds of pictures, but isn't it a sad state of affairs,
this Big Brother thing ? Sure it's got a practical side to it as everybody
and his dog will be downloading this R & X-rated stuff, but it's censorship
too. Some European sites do carry them, but, like most of the available
mega-MSDOS-stuff sites, they usually are sensible in allocating resources
to ftp access and/or have a sane policy of restricted downloadable volume.

But no, here's USA's prudeness again ... Live and let live, people. Next
time religion sets in etc..

John Kortink
 
Student of Informatics at the University of Twente, The Netherlands
NETMAIL : kortink@cs.utwente.nl              DISCLAIMER : the usual
rganisation: ECP-Paris France
Date: Monday, 5 Oct 1992 18:22:01 EDT
From: Morlaye Thierry <MORLAYE@FRECP12.BITNET>
Newsgroups: comp.graphics
Subject: TARGA viewer for SUN wanted svp...

           Hello,

I'm currently computing a lot of beautiful PoV pictures on a Sun with a 24 bit
display (GX +). PoV-Ray builds a TARGA 24 bits file with the result of its
calculations. I would be extremely pleased if I could find a 24 bit viewer for
TARGA files on my Sun. Currently, I need to convert it to 8 bits and I get a
bit nervous :)
           So, I would appreciate any help...

                                        Cuiviel.
Newsgroups: comp.graphics