HDTenEightyP/NetNews huggingface dataset:
From: lilleyc@cs.man.ac.uk (Chris Lilley)
Newsgroups: comp.graphics
Subject: Re: UNIX editor for CGM files wanted
Date: 19 Nov 92 12:57:12 GMT
Organization: Dept Computer Science, University of Manchester, U.K.

In article <1992Nov17.182239.485@ncar.ucar.edu> siri@acd.ucar.edu
(Siri Flocke) writes: 

>I have a whole bunch of similar looking CGM (Computer Graphics Meta)
>files.  To identify them I would like to add some sort of headerline or
>just an identification character somewhere to the plots.  Could any
>kind soul tell me whether there is a PD editor for CGM files somewhere
>(on an ftp server) available?  Any other ideas on how to solve my
>problem are also highly appreciated.  

If your CGMs are in the clear text encoding, just edit them with an
ordinary text editor of your choice. If not, convert them from binary
or character encoding to clear text, edit them, and convert back if
you need to.

RALCGM is one program that can do this - look on archie for a site
near you that has it.

--
Chris Lilley
---------------------------------------------------------------------------
Technical Author, ITTI Computer Graphics and Visualisation Training Project
Computer Graphics Unit, Manchester Computing Centre, Manchester, UK
Internet:   lilley@cgu.mcc.ac.uk        Janet:   lilley@uk.ac.mcc.cgu
Voice:      +44 (0)61 275 6095          Fax:     +44 (0)61 275 6040
---------------------------------------------------------------------------
Newsgroups: comp.graphics,comp.programming
From: spm2d@uvacs.cs.Virginia.EDU (Steven Miale)
Subject: Request: octree code
Organization: University of Virginia Computer Science Department
Date: Mon, 23 Nov 1992 19:05:13 GMT

I am looking for code that will let the programmer insert
various objects (just spheres and cubes are fine) into an
octree.

Please send replies via email to spm2d@virginia.edu.
I will post a summary of the responses.

Thanks,

Steve


-- 
__________________________________________________________
Steven Miale - spm2d@virginia.edu   
University of Virginia              
Charlottesville, Virginia           
Xref: sparky comp.graphics:12112 comp.sys.sgi:16663 comp.unix.misc:4263 comp.unix.questions:13644 rec.humor:34371
From: jim@jimmc.chi.il.us (Jim McNicholas)
Newsgroups: comp.graphics,comp.sys.sgi,comp.unix.misc,comp.unix.questions,rec.humor
Subject: Re: Turning Indigo monitor off when unused
Date: 19 Nov 92 15:46:21 GMT
Reply-To: jim@jimmc.chi.il.us (Jim McNicholas)
Organization: Prime Time Productions Aurora, Illinois

todd@kastle.com (Todd A. Scalzott) writes:

> In article <1992Nov16.203357.16203@cs.wayne.edu> atems@igor.physics.wayne.edu
> 
> >   Newsgroups: comp.graphics,comp.sys.sgi,comp.unix.misc,comp.unix.questions
> >   From: atems@igor.physics.wayne.edu (Dale Atems)
> >   Summary: Is it safe?
> >   Sender: usenet@cs.wayne.edu (Usenet News)
> >   Organization: Wayne State University, Detroit, MI
> >   Date: Mon, 16 Nov 1992 20:33:57 GMT
> >
> >   The Mitusbishi monitor that came with our new R4K Indigo needs such a
> >   high brightness level to be readable that the glow is noticeable even
> >   when the screen is blanked, which can't be a good thing in the long
> >   term. Rather than twiddle with the brightness control (slow) every
> >   night and morning, I was wondering, is it safe to simply leave the
> >   monitor powered off when not in use?
> >
> Damn.  This is a tricky one.  Which model Mitsubishi monitor is it?  Some
> of them have rather intricate power-down sequences.  I once had one that
> had to be spun 360 degrees on its horizontal axis while chanting "I love my
                 ^^^^^^^^^^^I got one of those make damn sure you go the
                 right way (clock-wise, northern hemisphere: counter clock-
                 wise, southern hemisphere) if you don't poof, the magnetic
                 draw will allow it to de-tune the resonance coupler and you
                 really don't wanna have to re-tune that!!!!

-- 
____________________________________________________________________________
|jim@jimmc.chi.il.us   |   ...And I believe in long, slow, deep, soft wet  |
|Prime Time Productions| kisses that last three days...good night...OH MY! |
|Aurora, IL. 60504     |        -crash davis to annie savoy in BULL DURHAM-|
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Newsgroups: comp.graphics
From: mpdillon@halcyon.com (Michael Dillon)
Subject: Re: NAPLPS
Organization: The 23:00 News and Mail Service
Date: Sun, 22 Nov 1992 08:14:22 GMT

converting bitmap formats such as GIF, JPEG, TIFF, etc... to NAPLPS
is not a very good idea although it *IS* possible. NAPLPS is an object
oriented graphics format like Postscript, metafiles, Corel Draw, etc...
It does allow for bitmaps but if they are any significant size you
lose the compactness advantage of NAPLPS. I have only used icon
bitmaps (I wrote an MSDOS QBASIC program to convert Windows icons.) in
NAPLPS pictures.

It is best to start with some sort of metafile format. If you can get
ahold of an older version of Corel Draw (2.0) it will export to
VideoShow format which is essentially NAPLPS. This export filter was
not included in Corel Draw 3.0.

I have used VideoShow a bit but it has problems. It basically generates
polygons with large numbers of straight line edges to simulate curves
and outlines consist of many *UNCONNECTED* line segments as a separate
object from the fill. I did succesfully export a filled ellipse and 
was able to import it into Microstar's MGE editor to add it to other
art. But when I tried a simple horse outline MGE couldn't handle it
although PP3 would display the graphic. I think the videoshow format 
allows too many nodes in a polygon whereas the NAPLPS standard only
guarantees to support 256 nodes per object.
 
I think the most promising approach would be to convert a metafile
format such as CGM or Windows Metafile but I have not yet taken the
time to write the code.

Newsgroups: comp.graphics
From: pigeons@JSP.UMontreal.CA (Pigeon Steven)
Subject: Wanted: Mapping from wavelength to RGB space (and conversely)
Organization: Universite de Montreal
Date: Thu, 19 Nov 1992 16:12:19 GMT

Hi all.

I was asking myself if someone had an algorithm to map wavelength of
light (likely in nanometers,or in Amstrong units, that's not the big
point) to a RGB space. The basic application is to convert a wave-
length into its color, in the context of a radiation simulation in-
volving an electron shift emission of a photon. A table like 600Ns
give (says) pure red, etc, would help greatly.

	regards,
		S.



-- 
 _ ___  __       __ _  | Steven Pigeon
(_  |  (__ \  / (__ |\ | (a.k.a)
__) |  (__  \/  (__ | \| pigeons@JSP.UMONTREAL.CA
==Computer Science & Operation Research, Universite de Montreal==
Xref: sparky comp.graphics:12224 comp.lang.c:16995
From: 873clifton@gw.wmich.edu
Newsgroups: comp.graphics,comp.lang.c
Subject: Re: Please Help Me Keep My Job!
Date: 22 Nov 92 16:22:58 EST
Organization: Western Michigan University

In article <1992Nov22.195326.24699@tc.cornell.edu>, elan@tasha.cheme.cornell.edu (Elan Feingold) writes:
> 
>> I second (or whatever) the nonimation for Best Article of the Week.
> 
> I (n+1) the nomination.
> 

n++; ? ;-)

/D
--
Xref: sparky comp.graphics:12263 comp.multimedia:3500 comp.sys.sun.wanted:1840
From: logan@nectarine.ucsb.edu (Logan O. Bruns)
Newsgroups: comp.graphics,comp.multimedia,comp.sys.sun.wanted
Subject: Re: Kodak Photo-CD software
Date: 24 Nov 92 00:11:17 GMT
Followup-To: comp.graphics

mist@source.nl (Michiel Steltman) writes:

>Hi,

>I'd like to know if there already is software to read/decode/vizualize
>Photo-CD images on (SUN) workstations, and I'd like to know any experiences
>with this new medium.

(parts deleted)
>-- 
>----
>Michiel Steltman     mist@source.nl    Phone (+31)-79-615511
>=============  Source Information Technology     ================

I would be curious to see format descriptions or any C, preferably,
code that accomplishes this.  MSCDEX is a reasonable interface to most
CDROM drives, so a PD reader could be written.
				- Logan (logan@cs.ucsb.edu)
Xref: sparky comp.graphics:12156 comp.lang.c:16900
From: richard@crowded-house.den.mmc.com (Richard Armstrong)
Newsgroups: comp.graphics,comp.lang.c
Subject: Re: Please Help Me Keep My Job!
Date: 20 Nov 92 19:06:48 GMT
Organization: Martin Marietta

In article <1992Nov19.224135.28721@oz.plymouth.edu> ted@oz.plymouth.edu (Ted Wisniewski) writes:
>In article <1992Nov19.173301.3870@kpc.com> hollasch@kpc.com (Steve Hollasch) writes:
>>
>>    My manager has asked me to finish several projects by the end of this
>>year, and they're really hard!  I told her I could do them, but now I don't
>>know; they're pretty tricky.  I'm sure other people have done stuff like
>>this, so why should I reinvent the wheel?  Why not use the resources of the
>>net?
>
>	Get a clue,  If you told you boss you could do it, I say you should
>do it.  If you cannot fulfill your responsibilities, you do not deserve to
>have your Job!!  There are many qualified people out there who would be
>more than happy to take it.  This is sort of like asking someone else to
>do you homework for you.  Isn't that like 'plagiarism'?  Sounds to me
>like you waited to the last minute.  I hope your boss reads this group!
>
>
>	Just an honest opinion.
>
>		--> Ted
>
>|   Ted Wisniewski    			INET:  ted@oz.plymouth.edu       |
>|   Academic Computing                               or                  |
>|   Plymouth State College                     tedw@psc.plymouth.edu     |
>|   Plymouth NH, 03264                                                   |

Hey Ted, are you having a bad hair day?  This sounds like a tounge-implanted-
firmly-in-cheek post.  Surely (sorry for calling you Shirley) you can see how
many grains of salt this post was meant to be read with!


-- 
My company never said any of this... I didn't either.
Richard Armstrong, Software Engineer, Martin Marietta
Email->>>> richard@crowded-house.den.mmc.com <<<<-Email 
Xref: sparky comp.graphics:12069 comp.graphics.visualization:1786
From: goza@norm.JSC.NASA.GOV (Mike Goza)
Newsgroups: comp.graphics
Subject: Re: Point inside a triangle
Date: 16 Nov 92 14:38:20 GMT
Organization: IGOAL

I happen to use the edge crossing method as stated by an earlier post.  It works for convex and
concave polygons and only requires counting of crossing edges to determine in/out for any polygon, not just triangles.  If odd number of crossings then interior to poly.  Below is included the
code that I used for testing points in/out of polys in the projection plane.  You can easily 
modify it for 3D points and your own data structures.  In 3D just determine the largest component
of the polygon normal and use the other two coordinates for the 2D projection.  The algorithm
works perfectly well that way.  I would have sent the 3D version, but I found this version first.
The only difference is a little code right at the beginning to determine whether I use XY, XZ, or 
YZ coordinates.  Hope this will be of some use.


/****************************************************************************
 *
 *  InteriorProjPoly - determines if point is interior to projected poly
 *
 *  Args:  pntintp - point to check
 *         projpnt - array of projection points for list
 *         list - array of index numbers for poly
 *         npnts - number of points
 *
 *  Written By:  S. Michael Goza, NASA-JSC, 8/27/92
 *
 ***************************************************************************/
int
InteriorProjPoly(POINT_2D pntintp, POINT_2D *projpnt, INDEX *list, int npnts)
{
   float Ua, Va, Ub, Vb;
   int NC, SH, NSH;
   float xint;
   float *ptmp;
   register i, ind;

/*  SET THE SIGN HOLDER  */

   NC = 0;
   ptmp = projpnt[list[0]];
   Ua = ptmp[0] - pntintp[0];
   Va = ptmp[1] - pntintp[1];
   SH = (Va < 0.0)? -1: 1;

/*  NOW GO THROUGH EDGES AND LOOK FOR CROSS POINTS  */

   for(i=1,ind=1; i<=npnts; i++,ind++) {
      if(ind >= npnts) ind = 0;
      ptmp = projpnt[list[ind]];
      Ub = ptmp[0] - pntintp[0];
      Vb = ptmp[1] - pntintp[1];
      NSH = (Vb < 0.0)? -1: 1;

/*  FOUND CROSS POINT SO SEE IF A POSITIVE INTERCEPT  */

      if(SH != NSH) {
         xint = Ua - Va*(Ub -Ua) / (Vb - Va);
         if(xint > 0.0) NC++;
      }

      Ua = Ub;
      Va = Vb;
      SH = NSH;
   }

/*  IF ODD NUMBER OF CROSSES THEN INTERIOR  */

   return(NC & 0x1);
}

Mike Goza
goza@cheers.jsc.nasa.gov
From: crd6@po.CWRU.Edu (Chad R. Dougherty)
Newsgroups: comp.graphics
Subject: Probs w/ Tseng ET4000 local bus...
Date: 20 Nov 1992 01:01:16 GMT
Organization: Case Western Reserve University, Cleveland, OH (USA)
Reply-To: crd6@po.CWRU.Edu (Chad R. Dougherty)
NNTP-Posting-Host: thor.ins.cwru.edu


  I recently upgraded and bought a local bus MB and Tseng Labs ET4000 based
local bus card.  The card worked fine until about 2 weeks ago.  I have a strong
feeling it "blew up" but I'll explain the problem so maybe someone can
help.  What happens is, on certain programs with 3D graphics, lines that
normally represent shade and reflection points, flash strange colors, many
times a bright green.  Also, screens that used to be solid black now flash
bright solid red.  Some of the programs it happens on are: Alone in the
Dark, Goblins 3, Robocop 3, and some European group demos.  If anyone can
think of an explanation about why this is happening or explain what "type"
of graphics these programs use, I'd greatly appreciate it.
From: aak@media03.UUCP (Arjen van den Akker)
Newsgroups: comp.graphics
Subject: Re: I need a good text editior
Summary: Suited editor might be 'AEDIT'.
Date: 20 Nov 92 09:31:39 GMT
Organization: Mediasystemen, Netherlands

In article <1eeenkINN9mk@agate.berkeley.edu>, aron@archangel.ced.berkeley.edu
(aron bonar) writes:
> ...deleted
> So I need a text editior for DOS that can handle them.  Right now I'm using
> Q-Edit but it chokes on anything bigger than 300k.  
> 
> Aron

A text editor that is capable of handling large text files is AEDIT. I think
opinions concerning AEDIT vary, but I'm quite happy with it (I use it every
day). I don't know if there is any FTP site where you can find it, but any PC
owner might have a version of it.

Hope this helps,

                Arjen van den Akker
From: cammarta@bucknell.edu (aaron cammarata `93)
Newsgroups: comp.graphics
Subject: Re: RenderMan - what platform should I pick
Date: 16 Nov 1992 19:35:26 GMT
Organization: Bucknell University, Lewisburg, PA
Distribution: world
NNTP-Posting-Host: mira.cs.bucknell.edu


	I've used RenderMan extensively, and I've found the most convenient
platform to run it on is the SGI Indigo, preferably with an ELAN graphics
board in it.  We run it here at Bucknell University on an Elan with 24-bit
color.  It's certainly not the best equipment we can get, but it does the
job nicely.  I learned on a Sun 3/60, and that was too slow.  I know it also
works on Personal Irises, as I've used it there, as well.
	From what I understand, the Elan will run you in the $25,000 range, but
I don't know what that's equipped with.  I don't know what price range you're
looking, but that should give you a start.  If you need more specifics,
I can find out about them.

-- 

					Aaron


==================================================================================
cammarta@bucknell.edu|     "Life is pain, Highness.
  B4ILUVU, UCT, RU   |         Anyone who says differently is selling something."
                18   |                     "The Princess Bride"
==================================================================================
Newsgroups: comp.graphics,comp.lang.c
From: haggas@kean.ucs.mun.ca
Subject: Re: Please Help Me Keep My Job!
Organization: Memorial University. St.John's Nfld, Canada
Date: Mon, 23 Nov 1992 18:33:05 GMT

In article <1992Nov19.173301.3870@kpc.com>, hollasch@kpc.com (Steve Hollasch) writes:
> 
>     My manager has asked me to finish several projects by the end of this
> year, and they're really hard!  I told her I could do them, but now I don't
> know; they're pretty tricky.  I'm sure other people have done stuff like
> this, so why should I reinvent the wheel?  Why not use the resources of the
> net?
(parts deleted)
> ______________________________________________________________________________
> Steve Hollasch                                          Satire & Vitriol, Inc.
> hollasch@kpc.com
Hi Steve,

I guess one could say that this is one way to relieve stress. 
Programmers are in one of the most stressful occupations. It is good 
to see that most people have a sense of humour; as Spok whould say,
"Hmmm... Fascinating!", to a rather amazing response to this post.
ASCII logo notwithstanding,
John Haggas
haggas@kean.ucs.mun.ca
From: Don_-_Hirschfeld@cup.portal.com
Newsgroups: comp.graphics
Subject: Re: 3D Studio - Books ?
Date: Tue, 17 Nov 92 05:23:50 PST
Organization: The Portal System (TM)
Distribution: world

I called Computer Literacy bookstore (if they don't have it, nobody has).
I also called Autodesk. Neither is aware of any independent books written
for 3D Studio. I heard of a book written as a manual for a class, but don't
know where to find it.
Newsgroups: comp.graphics.explorer
From: adominek@magnus.acs.ohio-state.edu (Allen Dominek)
Subject: Information needed on Pyramidal data type for Explorer
Organization: The Ohio State University
Distribution: comp.graphics.explorer
Date: Sat, 21 Nov 1992 19:23:04 GMT




	I am a novice at using Explorer and I would appreciate
	a little help in using Explorer for examining vector fields using a 
	tetrahedral mesh from a FEM application.  The Module Writer's Guide does
	address pyramidal data types but it still leaves me with some
	uncertainty in mapping nodal and connectivity information into the
	required input for the example pyramidal module in Module Writer's 
	Guide.	I am sure this uncertainty would be eliminated if I 
	could see what other people do.  The assistance that I would find
	useful could consist from a simple example on data input (nodal and 
	connectivity information) and DataScribe usage to existing modules
	and maps.  Also, are there any anonymous ftp sites where FEM related 
	modules and maps reside?  


        Thanks for any help.

        Allen Dominek
        akd@hertz.eng.ohio-state.edu
From: gary@enigma.esd.sgi.com (Wizard of OZ)
Newsgroups: comp.graphics.explorer
Subject: Re: saning explorer images
Date: 18 Nov 1992 19:40:38 GMT
Organization: Silicon Graphics Computer Systems, Mountain View, CA
Distribution: world
Reply-To: gary@sgi.com
NNTP-Posting-Host: enigma.esd.sgi.com
Keywords: explore images

In article <13576@ecs.soton.ac.uk>, mnn@ecs.soton.ac.uk (Mufeed Na'eem Ni'man) writes:
|> From: mnn@ecs.soton.ac.uk (Mufeed Na'eem Ni'man)
|> Subject: saning explorer images

|> I have converted an image format into the explorer lattice format
|> and i would like to be able to save that into a file to compare with
|> the original data i have.. Is that possible? and how?
|> 

Well, dscribe will do exactly that. Not only can it read in files and convert 
to Lattice, It can do the reverse. If you used dscribe to read in the 
file, merely switch the templates Input <=> Output


-- 

Gary Griffin			I just hope I'm still dreamin'
gary@sgi.com			'cause if this is for real
				I'm gonna get very depressed
Think WORLDWIDE		
						Howard T Duck
From: wellsj@gov.ornl.phy.orph14 (Jack Wells)
Newsgroups: comp.graphics.explorer
Subject: unsuported modules from anonymous ftp
Date: 18 Nov 92 05:41:50 GMT
Organization: Department of Computer Science, Edinburgh University

<From Explorer mailing list - please reply via email also>

Hello,
I've downloaded the unsupported modules from anonymous ftp.
When I load any one of these modules into the map editor,
I get an error saying "failure in executing the module. "Permission denied"
However, the access information appears to be the same as the supported
modules loaded on my system.  Why is this occuring?
Jack Wells
wellsj@orph14.phy.ornl.gov

Jack C. Wells, ORNL
Physics Division, Bldg 6003 
Oak Ridge TN 37831-6373
wellsj@orph14.phy.ornl.gov
Ph:      (615) 576-5229,     FAX:   (615) 574-4745



-- 
e|p Gordon Cameron                      |     Phone:+44 31 650 5024(Rm. 2259)
c|c Edinburgh Parallel Computing Centre |     Email: gordonc@epcc.ed.ac.uk
    oOo The University of Edinburgh oOo |    'So far so good, so now so what'
From: gordonc@epcc.ed.ac.uk (Gordon Cameron)
Newsgroups: comp.graphics.explorer
Subject: Re: mbuilder documentation?
Date: 22 Nov 92 20:33:47 GMT
Organization: Edinburgh Parallel Computing Centre


Hi Richard,

You can get the PostScript for the Module Writers guide via. anon
ftp from either ftp.epcc.ed.ac.uk or swedishchef.lerc.nasa.gov
in [/pub]/explorer/documents/moduleguide

Hope this helps,
	-Gordon.

P.S. This info is also in the FAQ, which is available from the above
addresses...

P.P.S. You can also buy an SGI Module Writers guide in the standard
SGI manual format from SGI themselves....

In article <1ejmo5INNfs4@network.ucsd.edu>, you write:
> 
> I'm looking for documentation on the Module Builder (mbuilder).  I've
> got the User's Guide, Module Definitions, and Getting Started references.
> There's a short blurb (p. 2-17) at the end of the latter, but that's all
> I could find.  Is there anything else?  A man page?
> 
> ---
> Richard Frost
> San Diego Supercomputer Center		619-534-5179 (voice)
> P.O. Box 85608				619-534-5113 (fax)
> San Diego, CA 92186-9784		frost@sdsc.edu

-- 
-- 
e|p Gordon Cameron                      |     Phone:+44 31 650 5024(Rm. 2259)
c|c Edinburgh Parallel Computing Centre |     Email: gordonc@epcc.ed.ac.uk
    oOo The University of Edinburgh oOo |    'So far so good, so now so what'
Newsgroups: comp.graphics.explorer
Subject: Import 3d Scalars into explorer
From: mwgst1+@pitt.edu (Michael W Groff)
Date: 20 Nov 92 19:27:59 GMT
Distribution: usa
Organization: University of Pittsburgh
Originator: mwgst1@unixd1.cis.pitt.edu

My data set is 256x256x124 and 8 bits deep.  We used dscribe to 
write a module that will read the data into explorer.  Unfortunately,
when we run it we get two errors in rapid succession:
	1) Module bob2lat exhauseted shared memory, aborting execution
	   Geometry output may be corrupted

	and

	2) Module "bob2lat" (0) killed -- segmentation fault, core
	   dumped.

The 3D Uniform lattice in the output lattice contains a vector of
floats in its data array while the input template has an array of chars.
Is this a problem?  
Does anyone have any suggestions?
Thanks,

-- 
michael groff
Medical Student
mwg@med.pitt.edu
From: mnn@ecs.soton.ac.uk (Mufeed Na'eem Ni'man)
Newsgroups: comp.graphics.explorer
Subject: saning explorer images
Summary: Is there a way of saving the transformed image in an explorer fomat for
Keywords: explore images
Date: 18 Nov 92 11:32:57 GMT

I have converted an image format into the explorer lattice format
and i would like to be able to save that into a file to compare with
the original data i have.. Is that possible? and how?

NP. i read through the manual very quickly but i could not find any
hints, may i have missed it(probably because my train was late today 
and it is raining and i am not feeling very well ......etc...i think 
you have heard enough from me ..BYE)