From bosch@rz.uni-karlsruhe.de (Gerhard Bosch)
Subject: Net address of Kubota Pacific Computers		
Message-ID: <1992Dec1.152534.26433@rz.uni-karlsruhe.de>
Sender: usenet@rz.uni-karlsruhe.de (USENET 'No news is bad news' News System)
Organization: University of Karlsruhe, Germany
Date: Tue, 1 Dec 1992 15:25:34 GMT
Lines: 13

Hi, I'm looking for a net address of Kubota Pacific in the USA. I have a few
addresses of them, but I haven't got any answer from them in the last 2 weeks.
I hope they read their mail more often than every month. Maybe I should ask,
if anybody knows is that company still exists. 

______________________________________________________________________
I'd would like to get in touch with some of the support people of KPC.
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^


Still pretty patient ( but who knows how long ), Gerhard Bosch



From James Peters <peters@convex.COM>
Subject: Re: Net address of Kubota Pacific Computers		
Message-ID: <1992Dec01.161149.8843@convex.com>
Originator: peters@mikey.convex.com
Sender: usenet@convex.com (news access account)
Nntp-Posting-Host: mikey.convex.com
Reply-To: peters@convex.COM (James Peters)
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
References: <1992Dec1.152534.26433@rz.uni-karlsruhe.de>
Date: Tue, 01 Dec 1992 16:11:49 GMT
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.
Lines: 24

In article <1992Dec1.152534.26433@rz.uni-karlsruhe.de> bosch@rz.uni-karlsruhe.de (Gerhard Bosch) writes:
>Hi, I'm looking for a net address of Kubota Pacific in the USA. I have a few
>addresses of them, but I haven't got any answer from them in the last 2 weeks.
>I hope they read their mail more often than every month. Maybe I should ask,
>if anybody knows is that company still exists. 
>
>______________________________________________________________________
>I'd would like to get in touch with some of the support people of KPC.
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>Still pretty patient ( but who knows how long ), Gerhard Bosch

   ----- Transcript of session follows -----
>>> RCPT To:<bosch@rz.uni-karlsruhe.de>
<<< 550 Unknown local user 'bosch'
550 <bosch@rz.uni-karlsruhe.de>... User unknown
   ----- Unsent message follows -----
In article <1992Dec1.152534.26433@rz.uni-karlsruhe.de> you write:

try geoff@kpc.com, jackb@kpc.com, ortiz@kpc.com, terry@kpc.com
phones are also a nice thing to use on occasion.

regards,
james, peters@convex.com


From dennisp@kpc.com (Dennis Preston)
Subject: Re: Net address of Kubota Pacific Computers		
Message-ID: <1992Dec1.164807.18165@kpc.com>
Sender: usenet@kpc.com
Organization: Kubota Pacific Computer Inc, Santa Clara, CA
References: <1992Dec1.152534.26433@rz.uni-karlsruhe.de>
Date: Tue, 1 Dec 1992 16:48:07 GMT
Lines: 23

In article <1992Dec1.152534.26433@rz.uni-karlsruhe.de> bosch@rz.uni-karlsruhe.de (Gerhard Bosch) writes:
>Hi, I'm looking for a net address of Kubota Pacific in the USA. I have a few
>addresses of them, but I haven't got any answer from them in the last 2 weeks.
>I hope they read their mail more often than every month. Maybe I should ask,
>if anybody knows is that company still exists. 
>
Technical Support for Kubota can be reached by e-mailing to support@kpc.com
We generally read our mail several times daily. For our European customers
we prefer to have support requests routed through the European support
center. Try mailing to beng@kpc.com . Ben is in  the European support
center. The telephone number (from the USA) is 011-49 221 252 052.
I hope this helps.

>______________________________________________________________________
>I'd would like to get in touch with some of the support people of KPC.
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
>
>
>Still pretty patient ( but who knows how long ), Gerhard Bosch
>




From loebach@netcom.com (Thomas M. Loebach)
Newsgroups: comp.graphics.avs
Subject: Mathematica modules
Message-ID: <1992Dec1.184959.2518@netcom.com>
Date: 1 Dec 92 18:49:59 GMT
Organization: Netcom - Online Communication Services  (408 241-9760 guest)
Lines: 11


   I would like to know how a person may obtain the Mathematica modules
for AVS.  

Thanks,
-tom

-- 
Tom Loebach                             E-mail: loebach@netcom.com
228 Byron Street			Tel: (415) 324-9806
Palo Alto, CA 94301			Voice Mail: (415) 306-0469


From coxjp@cs.man.ac.uk (Jonathan Cox)
Newsgroups: comp.graphics.avs
Subject: LUI Dialogue calls
Message-ID: <COXJP.92Dec1120436@beluga.cs.man.ac.uk>
Date: 1 Dec 92 12:04:36 GMT
Sender: news@cs.man.ac.uk
Distribution: comp
Organization: Department of Computer Science, University of Manchester
Lines: 94

Hi,

Does anybody know the syntax of the LUI_Dialog... calls that create pop up
dialogue boxes?  (As used by the 'edit_string' module at the IAC.)

I wish to popup a string typein window that is similar in appearance to those
that AVS use.  The only way I can think of doing this is to use the
undocumented and unsupported LUI library.  The closest I can come up with goes
something like this (working from 'edit_string' by Ian Currington, the AVS2
source library documentation and the dialog.h header file) :-

-----------------------------------------------------------------------------
#include <string.h>
#include <lui.h>

static char *Return_String;

int record_string(char *str)
{
  Return_String = str;
}

int get_string(char *program_name, char *str, int *length, char *prompt1, char
	       *prompt2, int xsize, int ysize)
{
  LUI_DIALOG *dialogue;

  /*
   * Initialise LUI (this should really be done in the module's init function) 
   */

  LUI_Color(-1.0, -1.0, -1.0);
  LUI_Initialize(program_name, NULL);

  /*
   * Create a dialogue box in the middle of the screen 
   * (This could also be done in the module's initialisation function)
   */

  dialogue = 
    LUI_DialogCreate(dialog_name, LUI_DIALOG_INPUT, LUI_RootWindow,
		     LUI_Width - xsize>>1, LUI_Height - ysize>>1, xsize, ysize,
		     LUI_MakeColour(0x50,0x50,0x50),
		     LUI_MakeColour(0x50,0x50,0x50));

  /*
   * Popup (display) the dialogue box and wait for the return string 
   */
  Return_String = 0;
  LUIdialog_request(dialog_name, prompt1, prompt2, record_string);
  XSync(LUI_Display, 0);
  
  if (Return_String)
    strncpy(str, Return_String, length);

  /*
   * Destroy the dialogue box (Could be moved to the module's destroy function)
   */
  LUI_DialogDestroy(dialogue);

  return Return_String ? 1 : 0;
}

------------------------------------------------------------------------------

This works but there are a couple of problems.

Firstly, the dialogue box does not have any 3D decoration on it.  I tried
inserting the call :-

  LUIdialog_frame(dialogue->window);

but this didn't seem to work.  In fact, I don't even know if this call is
intended to do this.  Any ideas?

Secondly, I would like to initialise the contents of the dialogue box to a
given string.  Is this possible?  There is a pointer to the string within the
LUI_DIALOG structure.  Can you set this?  If so, how is it allocated?

Any help, comments or suggestions will be greatly appreciated.  If there's any
interest I'll post the final routine to the news group.

Thanks,

Jon.

Ps. I've just typed the code in by hand so don't be supprised if it doesn't
compile.

--
Jonathan Cox.                              Email coxjp@cs.man.ac.uk
IT 301, Department of Computer Science,
University of Manchester,                  Tel: (+44) (0)61-275-6270
Manchester.  M13 9PL.  England.            Fax: (+44) (0)61-275-6280


From steritir@woods.ulowell.edu
Subject: Simple help writing avs 2d field needed.
Message-ID: <1992Dec1.214424.1@woods.ulowell.edu>
Lines: 46
Sender: usenet@ulowell.ulowell.edu (News manager - ulowell)
Organization: University of Lowell
Date: Wed, 2 Dec 1992 02:44:24 GMT


I'm new to AVS and need some help in writing AVS fields.

Below is a simple code that doesn't work, I believe the problem
lies in either outputting a linefeed or in the fwrite.

I know I should write a module but this is far simpler.

Much thanks,   Ron Steriti      steriti@dragon.ulowell.edu
                            or  steritir@woods.ulowell.edu

#include <stdio.h>
	
main ()
{
  float  *mydata;
  FILE   *fp;
  int    i, N, M, size;
  char   *InFileName, *OutFileName;

  InFileName = "in.dat";
  OutFileName = "out.fld";

  fp = fopen( InFileName, "r");
  fscanf ( fp, "%d%d", &N, &M );
  size = N*M;
  mydata = (float *) malloc ((unsigned)(size)*sizeof(float));
  for (i=0;i<size;i++) fscanf ( fp, "%e", &mydata[i] );
  fclose(fp);

  fp = fopen ( OutFileName, "w" );

  fprintf ( fp, "ndim   = 2 \n" );
  fprintf ( fp, "dim1   = %d \n", N );
  fprintf ( fp, "dim2   = %d \n", M );
  fprintf ( fp, "nspace = 1 \n" );
  fprintf ( fp, "veclen = 1 \n" );
  fprintf ( fp, "data   = float \n" );
  fprintf ( fp, "field  = uniform \n" );
  fprintf ( fp, "\n\n" );

  for (i=1;i<=N;i++) fwrite ( mydata, sizeof(float), size, fp );
 
  fclose (fp);
}



From blshyu@nctu.edu.tw ()
Subject: rgb_image output
Message-ID: <1992Dec2.032402.19342@ccnews.nctu.edu.tw>
Sender: usenet@ccnews.nctu.edu.tw
Organization: National Chiao Tung University
X-Newsreader: TIN [version 1.1 PL6]
Date: Wed, 2 Dec 1992 03:24:02 GMT
Lines: 10

Hi:

Is there any module which can write image to the SGI rgb format?
I know WRITE_ANY_IMAGE and write_rgb_image can do this. But these
modules have to be linked with SDSC image library, which doesn't 
exist on the Convex I am using.

----------------------------------------------------------------
B. L. Shyu                               <blshyu@cc.nctu.edu.tw>
National Chiao-Tung University


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Re: Mathematica modules
Message-ID: <ByM5qF.EK7@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Wed, 2 Dec 1992 03:59:03 GMT

Hi AVSers,

In an earlier posting, Tom wrote:

>   I would like to know how a person may obtain the Mathematica modules
>   for AVS.
>   Thanks,
>   -tom
>   
>   --
>   Tom Loebach                             E-mail: loebach@netcom.com
>   228 Byron Street                        Tel: (415) 324-9806
>   Palo Alto, CA 94301                     Voice Mail: (415) 306-0469

These and more that 600 other AVS modules may be obtained from the 
International AVS Center -

International AVS Center Contact Info:
-------------------------------------
International AVS Center
North Carolina Supercomputing Center
3021 Cornwallis Road
Research Triangle Park, NC 27709

avs@ncsc.org	   email questions to IAC staff here

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest IAC readme

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
(128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

Please feel free to utilize our ftp site, and email us with any
questions you might have.  I would recommend sending any message to
avsemail@ncsc.org, and checking over the automated informational replies
that you will then receive.

The Mathematica AVS modules can be found in:

avs.ncsc.org:avs_modules/data_input/field2_from_Math/*
avs.ncsc.org:avs_modules/data_input/field3_from_Math/*
avs.ncsc.org:avs_modules/data_input/geom_from_Math/*
avs.ncsc.org:avs_modules/data_output/field2_to_Math/*

FYI - their documentation, from our module catalog is included below.

Have fun,

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in our next issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------

Name        : field2_from_MathVersion      : 1.000     Mod Number : 1542 
Author      : Oleg Perelet, Wolfram Research
Submitted   : 10/14/92        Last Updated : 10/14/92  Language   : C        
Ported to   : Sun DEC Kubota
Description : The "field2 from Math" module allows a two-dimensional
              scalar field to be supplied to AVS. When the "field2 from
              Math" module is invoked an xterm is started running
              Mathematica with the input and output of the xterm directed
              to and from the Mathematica session main loop. Entering
              Mathematica commands into the window will result in the
              appropriate Mathematica results. The session is
              initialised with a package of Mathematica commands which
              have started a MathLink communication channel to AVS.
              Other initialisations are made so that the Mathematica
              command AVSWriteField[ data] will write a
              three-dimensional scalar field to AVS. Please note that at
              the present time the IAC does NOT have Mathematica
              installed on a DEC, Sun, or Kubota platforms. As a result
              this module was placed on the ftp site using the Makefiles
              provided by the author, without testing.

Name        : field3_from_MathVersion      : 1.000     Mod Number : 1540 
Author      : Oleg Perelet, Wolfram Research
Submitted   : 10/14/92        Last Updated : 10/14/92  Language   : C        
Ported to   : Sun DEC Kubota
Description : The "field3 from Math" module allows a three-dimensional
              scalar field to be supplied to AVS. When the "field3 from
              Math" module is invoked an xterm is started running
              Mathematica with the input and output of the xterm directed
              to and from the Mathematica session main loop. Entering
              Mathematica commands into the window will result in the
              appropriate Mathematica results. The session is
              initialised with a package of Mathematica commands which
              have started a MathLink communication channel to AVS.
              Other initialisations are made so that the Mathematica
              command AVSWriteField[ data] will write a
              three-dimensional scalar field to AVS. Please note that at
              the present time the IAC does not have Mathematica
              installed on a DEC, Sun, or Kubota platform. As a result this
              module was placed on the ftp site using the Makefiles
              provided by the author, without testing.

Name        : geom_from_Math  Version      : 1.000     Mod Number : 1541 
Author      : Oleg Perelet, Wolfram Research
Submitted   : 10/14/92        Last Updated : 10/14/92  Language   : C        
Ported to   : Sun DEC Kubota
Description : The "geom from Math" module allows three-dimensional
              graphics commands in Mathematica to supply AVS with an
              input geometry. When the "geom from Math" module is invoked
              an xterm is started running Mathematica with the input and
              output of the xterm directed to and from the Mathematica
              session main loop. Entering Mathematica commands into the
              window will result in the appropriate Mathematica
              results. The session is initialised with a package of
              Mathematica code which starts a MathLink communication
              channel to AVS. Other initialisations are made so the
              typical Mathematica three dimensional graphics commands
              such as Plot3D or ParametricPlot3D send their results into
              AVS rather than rendering them in the more typical
              Mathematica ways. Please note that at the present time the
              IAC does not have Mathematica installed on a DEC, Sun, or
              Kubota platform. As a result this module was placed on the
              ftp site using the Makefiles provided by the author,
              without testing.

Name        : field2_to_Math  Version      : 1.000     Mod Number : 1539 
Author      : Tom Wickham-Jones, Wolfram Research
Submitted   : 10/14/92        Last Updated : 10/14/92  Language   : C        
Ported to   : Sun DEC Kubota
Description : The "field2 to Math" module allows a two-dimensional
              scalar field to be imported into Mathematica from AVS. When
              the "field2 to Math" module is invoked an xterm is started
              running Mathematica with the input and output of the xterm
              directed to and from the Mathematica session main loop.
              Entering Mathematica commands into the window will result
              in the appropriate Mathematica results. The session is
              initialised with a package of Mathematica commands which
              have started a MathLink communication channel to AVS.
              Other initialisations are made so that the Mathematica
              command AVSReadField[ ] will read a two-dimensional
              scalar field from AVS. Please note that at the present time
              the IAC does not have Mathematica installed on a DEC, Sun, or
              Kubota platforms. As a result this module was placed on the
              ftp site using the Makefiles provided by the author,
              without testing.



From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: IAC module submission contest!
Message-ID: <ByM5y2.Et8@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Wed, 2 Dec 1992 04:03:37 GMT

----------------------------------------------------------------
CONTEST!!!   CONTEST!!!    CONTEST!!!   CONTEST!!!    CONTEST!!!
----------------------------------------------------------------

Hi AVSers!

The International AVS Center's module repository 
has been very successful in its first year.  There 
are now just over 600 public domain AVS modules available 
for your scientific visualizatition use!  Thanks to 
all who have so generously shared their work!

To encourage continued submissions, and as a reward
for the modules already contributed, the IAC is
implementing a quarterly contest.  The author of the
"best" module contributed in a quarter will receive
his/her choice of $250 cash (U.S. funds), or $250 
credit towards attendance at AVS '93 ( to be held
May 24-26 in Orlando, Florida ).  Some of the criteria 
considered in a module's evaluation include the module's: 

	1)  Utility 
	2)  Uniqueness
	3)  Popularity 

These are not necessarily all inclusive or in any 
particular order.  The final decision as to who wins
the award will be made by the IAC.

The contest will be for three quarters, October 1, 1992 until
December 31, 1992, January 1, 1993 until March 31, 1993 and
lastly, April 1, 1993 until the AVS '93 conference on May 24, 1993.
Submissions for each quarter must be received before midnight on
the final day (EST).

We have selected a lucky winner for the time preceeding Oct 1, 1992.
For his many module contributions and their usefulness to the AVS community
according to our download statistics, we have selected Wes Bethel
from Lawrence Berkeley Laboratories.  We did not want the donations
for the first year to go unrewarded. 

Thanks from the IAC and all the AVS User community for your more than
many module contributions, including the following and more:

	animate_floa
	animate_inte
	animated_str
	plot_xyz
	plot_xyz_col
	read_irregul
	read_uniform
	add_coords_2
	add_coords_3
	add_cps
	byte_image_t
	float_image
	collage
	xform_field
	irreg_2_reg
	new_crop
	persp_field
	vec_mag_2d_v
	new_arbitrar
	bivar
	field_to_con
	scat_2d
	scat_3d
	dump_sunras
	dump_icc
	dump_ps
	image_2_icc
	output_color
	output_8bit
	write_irreg
	write_reg
	hsv_to_rgb
	rgb_to_hsv
	bin_field
	psfilter
	trivar
	LBL_bezier_v
	new_ortho_sl
	write_compressed
	read_compressed
	3D_axis

IAC and MCNC staff and their families are not eligible for the
contest.  Employees and their families from Advanced Visual
Systems, Inc are also not eligible for the contest.  All other
entries will be equally considered.  We are a non-profit organization.

Have fun coding, and thanks again for an extremely
successful first year!

----------------------------------------------------------------

You can contact the IAC at:

	The International AVS Center
	3021 Cornwallis Rd
	RTP, NC 27709
	USA
	avs@ncsc.org
	(919) 248-1100

Please send AVS related articles for the AVS Network News magazine.

Send requests for advance programs for AVS'93 to avs93@ncsc.org
and join us May 24-26, 1993 for an intense 3 day AVS Conference.

----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------


From ahaus@dke.uni-linz.ac.at (Andreas Hausleitner)
Newsgroups: comp.graphics.avs
Subject: AVS-Remote-Modules
Keywords: AVS-Remote-Module
Message-ID: <1992Dec2.145656.8803@alijku05.edvz.uni-linz.ac.at>
Date: 2 Dec 92 14:56:56 GMT
Sender: news@alijku05.edvz.uni-linz.ac.at
Reply-To: ahaus@dke.uni-linz.ac.at
Organization: Johannes Kepler Universitaet
Lines: 10
Nntp-Posting-Host: poseidon.gup.uni-linz.ac.at

Because we have a secure network, i tried to run /usr/avs/bin/c_rsh.
I started it manually from my shell-window with c_rsh "nCube -n" to
create a remote shell on the remote host nCube.
That fails and their was message "AVS_NCUBE -N_TICKET ist not defined"!

What`s wrong and what can I do?

Thanks

Andreas


From ljs@cs.brown.edu (Lee J. Silverman)
Subject: Advection in changing vector field
Message-ID: <1992Dec2.183641.12756@cs.brown.edu>
Keywords: Advect, vector, dynamic
Sender: news@cs.brown.edu
Organization: Brown Computer Science Dept.
Date: Wed, 2 Dec 1992 18:36:41 GMT
Lines: 16

	I am working on a fluid mechanics problem in the Geophysics department
here, and have run into an interesting dilemma.  I have 500 3-dimensional vector
fields (33x33x17) that represent the changing velocity vector field in a prism
as a liquid convects within that prism.  I'd like to do particle advection through
each of the 500 frames in sequence, but AVS's particle advection module doesn't
seem to have any facility for this.  Before I try to develop a workaround, or
maybe a new module, I'm wondering if anyone has addressed this problem before.  
	One major issue is that each vector field may need to be in a seperate
file, because of memory constraints.  That'll certainly make things more complex,
but not unbearably so (I don't think).  
	If it makes any difference, I'm running on a DECstation 5000/200.

	Thanks in advance for any help you may be able to provide!
-- 
Lee Silverman
ljs@cs.brown.edu


From todd@strawber.princeton.edu (Todd J. Mitty)
Newsgroups: comp.graphics.avs
Subject: AVS and IBM Data Explorer?
Message-ID: <1992Dec2.180046.5515@Princeton.EDU>
Date: 2 Dec 92 18:00:46 GMT
Sender: news@Princeton.EDU (USENET News System)
Organization: Princeton University
Lines: 15
Originator: news@nimaster
Nntp-Posting-Host: strawber.princeton.edu


Is there an AVS module available that can read
files formatted according to the IBM Visualization
Data Explorer.  That is, files with the ".dx" extension.

Basically, I have unstructured data saved in files and a
".dx" header file that accesses these files.  Rather than
save my vast amount of data in different forms or try
to develop an AVS module, I figured I would try this
posting first.

Please e-mail to todd@cougarxp.Princeton.EDU

Thanks,
Todd


From lliang@nuage.rutgers.edu (Li-Wen Liang)
Newsgroups: comp.graphics.avs
Subject: questions about converting existing programs to avs modules
Message-ID: <Dec.2.16.35.52.1992.20038@nuage.rutgers.edu>
Date: 2 Dec 92 21:35:53 GMT
Organization: Rutgers Univ., New Brunswick, N.J.
Lines: 22

Hi,

I have two questions about converting an existing application program to 
avs module. I will appreciate if anyone who can help me out.

1. How can I do so my avs module can be interactive at runtime? My program
   needs some inputs from the user (for example, some numbers) which user
   will typein when they see the partial result. It seems that I can print
   out some information on a text window, but I can not get inputs from that
   window.

2. The ultimate goal of my avs module is producing several geometry objects
   (depends on how many input files I have, but the number is not fixed) and
   display these objects in different windows at the same time. Is there
   any way to create any number of output ports at runtime? So I can connect
   each of them to a geometry viewer. 

These two questions may be quite simple to you (but not for me, since I am 
a new user/programmer on avs). So if there's anyone has been dealing with
these problems, please help me. Thanks a lot.

Li-Wen


From arp@cooper!osd (Andrew Pinkowitz)
Subject: SIGGRAPH International Computer Animation Festival
Message-ID: <1992Dec2.162450.1157@cooper!osd>
Keywords: graphics animation nyc acm siggraph
Organization: Online Systems Development ( NY, NY)
Date: Wed, 2 Dec 92 16:24:50 GMT
Lines: 32

======================================================================
                NYC ACM/SIGGRAPH: DECEMBER CALENDAR
======================================================================

  SUBJECT:  International Computer Animation Festival
            =========================================
                        & HOLIDAY PARTY
                        ===============

        Hosted by:
            Dean Winkler, Post Perfect
            Gray Lorig, SIGGRAPH '92 Electronic Theater Chair
               && The French Embassy

            Selections screened will include materials from IMAGINA
        (France), VIDEOTECH de Milano (Italy), ARS ELECTRONICA
        (Germany), MIMAD (Spain), and IMAGE DU FUTURE (Canada).  The
        party will be hosted by the French Embassy.

     DATE:  Thursday, 10 December 1992

     TIME:  6:00 pm (EST)

    PLACE:  The Haft Auditorium
            Fashion Institute of Technology (F.I.T.)
            227 West 27th Street, "C" Building
            NY, NY

ADMISSION:  Members FREE
            Students $3.00
            Non-Members $7.00 (Includes Refreshments)



From sbeland@nrao.edu (Stephane Beland,,,)
Subject: Video Output/Recording
Message-ID: <1992Dec3.000817.26456@zia.aoc.nrao.edu>
Sender: news@zia.aoc.nrao.edu
Reply-To: sbeland@nrao.edu
Organization: National Radio Astronomy Observatory
Date: Thu, 3 Dec 92 00:08:17 GMT
Lines: 19

Hi:

I'm looking into a way to take the RGB signal from a IBM RS 6000 (or Sun) 
a transform it to a video signal (or NTSC and/or PAL) to record an animation
on a VCR. I now of two prducts so far RGB Spectrum and Falson CGR.
What is the prefered method for doing this? What other products are available?

Any help will be appreciated.

Thanks

Stephane Beland          |\_/|
NRAO-AOC                 'o_o`
Socorro, NM 87801         ( )
(505) 835-7335             U






From steritir@woods.ulowell.edu
Subject: More simple avs help on writing field files still needed!?
Message-ID: <1992Dec2.231150.1@woods.ulowell.edu>
Lines: 54
Sender: usenet@ulowell.ulowell.edu (News manager - ulowell)
Organization: University of Lowell
Date: Thu, 3 Dec 1992 04:11:50 GMT


I still need help, I've fixed the linefeed problem.

AVS gives an error message:
Error reading field file ...
invalid header spec: not enough info
Error on (or after) line 9.

The code is unbelievably simple, yet?

Thanks Ron Steriti (and thanks for the previous help_
  steritir@woods.ulowell.edu

#include <stdio.h>
	
main ()
{
  float  *data;
  float  *mydata;
  FILE   *fp;
  int    i, N, M, size;
  char   *InFileName, *OutFileName;

  InFileName = "in.dat";
  OutFileName = "out.fld";

  fp = fopen( InFileName, "r");

  fscanf ( fp, "%d%d", &N, &M );
  size = N*M;
  mydata = (float *) malloc ((unsigned)(size)*sizeof(float));
  for (i=0;i<size;i++) fscanf ( fp, "%e", &mydata[i] );
  fclose(fp);

  fp = fopen ( OutFileName, "w" );

  fprintf ( fp, "# AVS field file \n" );
  fprintf ( fp, "# creation date: Fri Apr 15 10:20:10 1990\n" );
  fprintf ( fp, "ndim=2\n" );
  fprintf ( fp, "dim1=%d\n", N );
  fprintf ( fp, "dim2=%d\n", M );
  fprintf ( fp, "nspace=2\n" );
  fprintf ( fp, "veclen=1\n" );
  fprintf ( fp, "data=float\n" );
  fprintf ( fp, "field=uniform\n" );

  fprintf ( fp, "%c%c", 0xc, 0xc );

  fwrite ( mydata, sizeof(float), size, fp );
 
  fclose (fp);

}



From thalli@piis10.joanneum.ac.at (Georg Thallinger (IIS))
Subject: Re: SIGGRAPH International Computer Animation Festival
Message-ID: <1992Dec3.082930.21187@news.tu-graz.ac.at>
Keywords: graphics animation nyc acm siggraph
Sender: news@news.tu-graz.ac.at (USENET News System)
Nntp-Posting-Host: piis10.joanneum.ac.at
Organization: Joanneum Research (IIS)
References:  <1992Dec2.162450.1157@cooper!osd>
Date: Thu, 3 Dec 92 08:29:30 GMT
Lines: 10

Just to prevent that wrong information is distributed.

The ARS Electronica is not a german but an AUSTRIAN art show, which takes place
every autumn in Linz.

Georg
-- 
Georg THALLINGER                      | e-mail: thalli@piis10.joanneum.ac.at
Institute for Information Systems     |         thallinger@joanneum.ada.at
JOANNEUM RESEARCH GRAZ /  AUSTRIA     | phone:  (++43/316) 8020-243


From lipman@oasys.dt.navy.mil (Robert Lipman)
Newsgroups: comp.graphics.avs
Subject: Stereo version of AVS4
Message-ID: <28098@oasys.dt.navy.mil>
Date: 3 Dec 92 14:14:24 GMT
Reply-To: lipman@oasys.dt.navy.mil (Robert Lipman)
Organization: Carderock Division, NSWC, Bethesda, MD
Lines: 15

At SIGGRAPH 92, a stereoscopic version of AVS4 was being shown in
the AVS booth.  It used CrystalEyes stereo glasses and the Logitech
head tracker.  The stereo was available only in the geometry viewer
module.

What is the availability of this stereo version of AVS.  We'd really
like to have that capability with AVS.

Bob Lipman                        | Internet: lipman@oasys.dt.navy.mil
David Taylor Model Basin - CDNSWC |       or: lip@ocean.dt.navy.mil
Computational Signatures and      | Voicenet: (301) 227-3618
   Structures Branch, Code 1282   | Factsnet: (301) 227-5753
Bethesda, Maryland  20084-5000    | Phishnet: stockings@long.legs
				   
She sells Korn shells by the produce stand.


From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: Video Output/Recording
Message-ID: <1992Dec3.101236.47@rcwusr>
Date: 3 Dec 92 10:12:36 -0600
References: <1992Dec3.000817.26456@zia.aoc.nrao.edu>
Organization: BP Research, Cleveland, OH (USA)
Lines: 35

In article <1992Dec3.000817.26456@zia.aoc.nrao.edu>, sbeland@nrao.edu (Stephane Beland,,,) writes:
> Hi:
> 
> I'm looking into a way to take the RGB signal from a IBM RS 6000 (or Sun) 
> a transform it to a video signal (or NTSC and/or PAL) to record an animation
> on a VCR. I now of two prducts so far RGB Spectrum and Falson CGR.
> What is the prefered method for doing this? What other products are available?
> 
> Any help will be appreciated.
> 
> Thanks
> 
> Stephane Beland          |\_/|
> NRAO-AOC                 'o_o`
> Socorro, NM 87801         ( )
> (505) 835-7335             U
> 
> 
> 
We have just been through this exercise.  IF the RS/6000 provides an NTSC RGB
output, in contrast to the circa 75 KHz RGB to the monitor, you can try any of
several boxes that produce composite video from RGB at NTSC rates.  Typically
this only handles the upper left corner of the monitor's view.  The box we
acquired from FSR Inc. didn't work because our Sync is on Green and their box
can't cope with that.

IF you want a proper conversion of the entire screen, as we would, I'd suggest
any of a number of conversion boxes in the $12,000 to $20,000 range.  We are
requesting a Folsom converter and are dealing with Wayne Dengel at Qutron,
(201)-327-3259.  Our colleagues in the UK are using a Folsom on an SGI machine.

Rob Lake
BP Research
lake@rcwcl1.dnet.bp.com
 


From schiano@vega.acs.uci.edu (Allen V. Schiano)
Subject: Re: Video Output/Recording
Nntp-Posting-Host: vega.acs.uci.edu
Message-ID: <2B1E3FE8.984@news.service.uci.edu>
Newsgroups: comp.graphics.avs
Reply-To: schiano@vega.acs.uci.edu (Allen V. Schiano)
Organization: University of California, Irvine
Lines: 46
References: <1992Dec3.000817.26456@zia.aoc.nrao.edu> <1992Dec3.101236.47@rcwusr>
Date: 3 Dec 92 17:12:08 GMT

In article <1992Dec3.101236.47@rcwusr>, lakerb@rcwusr.bp.com writes:
|> In article <1992Dec3.000817.26456@zia.aoc.nrao.edu>, sbeland@nrao.edu (Stephane Beland,,,) writes:
|> > Hi:
|> > 
|> > I'm looking into a way to take the RGB signal from a IBM RS 6000 (or Sun) 
|> > a transform it to a video signal (or NTSC and/or PAL) to record an animation
|> > on a VCR. I now of two prducts so far RGB Spectrum and Falson CGR.
|> > What is the prefered method for doing this? What other products are available?
|> > 
|> > Any help will be appreciated.
|> > 
|> > Thanks
|> > 
|> > Stephane Beland          |\_/|
|> > NRAO-AOC                 'o_o`
|> > Socorro, NM 87801         ( )
|> > (505) 835-7335             U
|> > 
|> > 
|> > 
|> We have just been through this exercise.  IF the RS/6000 provides an NTSC RGB
|> output, in contrast to the circa 75 KHz RGB to the monitor, you can try any of
|> several boxes that produce composite video from RGB at NTSC rates.  Typically
|> this only handles the upper left corner of the monitor's view.  The box we
|> acquired from FSR Inc. didn't work because our Sync is on Green and their box
|> can't cope with that.
|> 
|> IF you want a proper conversion of the entire screen, as we would, I'd suggest
|> any of a number of conversion boxes in the $12,000 to $20,000 range.  We are
|> requesting a Folsom converter and are dealing with Wayne Dengel at Qutron,
|> (201)-327-3259.  Our colleagues in the UK are using a Folsom on an SGI machine.
|> 
|> Rob Lake
|> BP Research
|> lake@rcwcl1.dnet.bp.com
|>  

	You might also want to look at the Lyon-Lamb RTC scan converter.  It's list price is a bit higher ($25K) but it allows a lot of capabilities the
others don't have:  pan ans scroll to any area of the screen, zooming, and
a typically higher quality image through better anit-aliasing than most
scan converters.  We've been using one for a year and a half with very good results.

	Allen V. R. Schiano
	Office of Academic Computing
	UCI
	schiano@uci.edu


From cohen@quartz.ciw.edu (Ronald Cohen)
Subject: Re: Video Output/Recording
Sender: usenet@granite.ciw.edu
Message-ID: <03Dec92.181238.18686@granite.ciw.edu>
Date: 03 Dec 92 18:12:38 GMT
References: <1992Dec3.000817.26456@zia.aoc.nrao.edu> <1992Dec3.101236.47@rcwusr> <2B1E3FE8.984@news.service.uci.edu>
Organization: Geophysical Laboratory, CIW
Lines: 16

In article <2B1E3FE8.984@news.service.uci.edu> schiano@vega.acs.uci.edu (Allen V. Schiano) writes:
>In article <1992Dec3.101236.47@rcwusr>, lakerb@rcwusr.bp.com writes:
>|> In article <1992Dec3.000817.26456@zia.aoc.nrao.edu>, sbeland@nrao.edu (Stephane Beland,,,) writes:
>
>	You might also want to look at the Lyon-Lamb RTC scan converter.  It's list price is a bit higher ($25K) but it allows a lot of capabilities the
>others don't have:  pan ans scroll to any area of the screen, zooming, and
>a typically higher quality image through better anit-aliasing than most
>scan converters.  We've been using one for a year and a half with very good results.

We also have been happy with the Lyon-Lamb RTC.  We also have a
Lyon-Lamb Minivas for controlling Panasonic AG-7750 VTR's for
frame-by-frame recording.
-- 
Ronald Cohen
Geophysical Laboratory, Carnegie Institution of Washington
5251 Broad Branch Rd., N.W.,  Washington, D.C. 20015


From yeidel@tomar.accs.wsu.edu (Joshua Yeidel)
Newsgroups: comp.graphics.avs
Subject: Re: Video Output/Recording
Message-ID: <1992Dec3.185518.8869@serval.net.wsu.edu>
Date: 3 Dec 92 18:55:18 GMT
Article-I.D.: serval.1992Dec3.185518.8869
Sender: news@serval.net.wsu.edu (USENET News System)
Reply-To: yeidel@tomar.accs.wsu.edu (Joshua Yeidel)
Organization: Academic Computing Services, Washington State University
Lines: 70


--
Joshua Yeidel               | yeidel@tomar.accs.wsu.edu
Academic Computing Services | All standard disclaimers apply
Washington State University |   "Believe it if you need it, 
Pullman, WA 99164-1226      |     or leave it if you dare..."
509/335-0441                |         -- Robert Hunter
In article <2B1E3FE8.984@news.service.uci.edu>, schiano@vega.acs.uci.edu (Allen V. Schiano) writes:
|>From: schiano@vega.acs.uci.edu (Allen V. Schiano)
|>Subject: Re: Video Output/Recording
|>Organization: University of California, Irvine
|>Lines: 46
|>
|>In article <1992Dec3.101236.47@rcwusr>, lakerb@rcwusr.bp.com writes:
|>|> In article <1992Dec3.000817.26456@zia.aoc.nrao.edu>, sbeland@nrao.edu (Stephane Beland,,,) writes:
|>|> > Hi:
|>|> > 
|>|> > I'm looking into a way to take the RGB signal from a IBM RS 6000 (or Sun) 
|>|> > a transform it to a video signal (or NTSC and/or PAL) to record an animation
|>|> > on a VCR. I now of two prducts so far RGB Spectrum and Falson CGR.
|>|> > What is the prefered method for doing this? What other products are available?
|>|> > 
|>|> > Any help will be appreciated.
|>|> > 
|>|> > Thanks
|>|> > 
|>|> > Stephane Beland          |\_/|
|>|> > NRAO-AOC                 'o_o`
|>|> > Socorro, NM 87801         ( )
|>|> > (505) 835-7335             U
|>|> > 
|>|> > 
|>|> > 
|>|> We have just been through this exercise.  IF the RS/6000 provides an NTSC RGB
|>|> output, in contrast to the circa 75 KHz RGB to the monitor, you can try any of
|>|> several boxes that produce composite video from RGB at NTSC rates.  Typically
|>|> this only handles the upper left corner of the monitor's view.  The box we
|>|> acquired from FSR Inc. didn't work because our Sync is on Green and their box
|>|> can't cope with that.
|>|> 
|>|> IF you want a proper conversion of the entire screen, as we would, I'd suggest
|>|> any of a number of conversion boxes in the $12,000 to $20,000 range.  We are
|>|> requesting a Folsom converter and are dealing with Wayne Dengel at Qutron,
|>|> (201)-327-3259.  Our colleagues in the UK are using a Folsom on an SGI machine.
|>|> 
|>|> Rob Lake
|>|> BP Research
|>|> lake@rcwcl1.dnet.bp.com
|>|>  
|>
|>	You might also want to look at the Lyon-Lamb RTC scan converter.  It's list price is a bit higher ($25K) but it allows a lot of capabilities the
|>others don't have:  pan ans scroll to any area of the screen, zooming, and
|>a typically higher quality image through better anit-aliasing than most
|>scan converters.  We've been using one for a year and a half with very good results.
|>
|>	Allen V. R. Schiano
|>	Office of Academic Computing
|>	UCI
|>	schiano@uci.edu
|>
We are using the Chromatek 9120, with similar capabilities to the
Lyon Lamb at a similar price.  We bought it from Qutron (see phone
above).  

--
Joshua Yeidel               | yeidel@tomar.accs.wsu.edu
Academic Computing Services | All standard disclaimers apply
Washington State University |   "Believe it if you need it, 
Pullman, WA 99164-1226      |     or leave it if you dare..."
509/335-0441                |         -- Robert Hunter


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: EditColors for UCD?
Message-ID: <BypI9G.8EB@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Thu, 3 Dec 1992 23:22:28 GMT

Hi Folks,

This user unfortunately can't post to comp.graphics.avs, so I am
forwarding it on for him.  Please respond to David via email as
well as the net.

BTW - only 28 days left to submit modules for the Q4 submission contest! :)

Take care,

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in our next issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------

User: dgreenbe@sable.bio.dfo.ca
Submission Date: Thu Dec  3 08:47:01 EST 1992
Keywords:
Problem Status: open
Problem # 1070 :
Hi.
I have been following comp.graphics.avs.  Unfortunately (to my surprise)
I find we do not have the capability of posting articles.  Appended is
my rejected post in the blind hope that someone there might know
something or forward it to the net news.

Newsgroups: comp.graphics.avs
Distribution: comp
Subject: EditColors for UCD?
Summary: EditColors is for field scalar float. Has anyone tried conversion to UCD?
Keywords: module colormap


The contributed module library recently got a module called EditColors
that lets you define your color table to be discrete values within a set
number of ranges.  The input is from field scalar float.  My work is with
UCD structures.  I have tried the obvious simple changes to get UCD input
and getting the UCD min and max, but the conversion to UCD needs more than
that.  Has anybody looked at the module with UCD in mind?

The diffs from on my simple minded changes from the original are (after
using emacs "untabify" and "indent-region") are:

67c67
< #include <avs/ucd_defs.h>
---
> #include <avs/field.h>
112c112
< int UCD_ed_colDesc()
---
> int EditColorsDesc()
116,117c116,117
<   extern int UCD_ed_colCompute();
<   extern int UCD_ed_colInit();
---
>   extern int EditColorsCompute();
>   extern int EditColorsInit();
119c119
<   AVSset_module_name("UCD_ed_col", MODULE_FILTER);
---
>   AVSset_module_name("EditColors", MODULE_FILTER);
122c122
<   in_port = AVScreate_input_port("InUCD", "ucd",REQUIRED);
---
>   out_port = AVScreate_input_port("InField", "field scalar float",REQUIRED);
195,196c195,196
<   AVSset_compute_proc(UCD_ed_colCompute);
<   AVSset_init_proc(UCD_ed_colInit);
---
>   AVSset_compute_proc(EditColorsCompute);
>   AVSset_init_proc(EditColorsInit);
203c203
< int UCD_ed_colCompute( InUCD,PickedColor,OutColors,ColorNr,EditedColor,
---
> int EditColorsCompute( InField,PickedColor,OutColors,ColorNr,EditedColor,
212c212
<      UCD_structure *InUCD;
---
>      AVSfield_float *InField;
290c290
<   if(   AVSinput_changed("InUCD",0)
---
>   if(   AVSinput_changed("InField",0)
292,293c292
<     UCDstructure_get_node_minmax(InUCD,minimum,maximum);
< /*    j=1;
---
>     j=1;
301c300
<       ptr++;             */
---
>       ptr++;
328c327,329
<   }
---
>   }
>
>
416c417
< UCD_ed_colInit()
---
> EditColorsInit()
427c428
<   UCD_ed_colDesc,
---
>   EditColorsDesc,

Many thanks for any help.

Dave Greenberg

-- 
_______________________________________________________________________
|David A. Greenberg                    email dgreenbe@sable.bio.dfo.ca|
|Bedford Institute of Oceanography     OMNET c/o J.LODER              | 
|P.O. Box 1006                         phone (902) 426-2431           | 
|Dartmouth, Nova Scotia                fax   (902) 426-7827           | 
|CANADA B2Y-4A2                        home  (902) 865-7511           |
_______________________________________________________________________



From wayne@concave.cs.wits.ac.za (Wayne Smith)
Subject: Generate Colourmap???
Message-ID: <1992Dec4.130729.17617@shannon.ee.wits.ac.za>
Sender: news@shannon.ee.wits.ac.za
Organization: Wits Univ. Computer Science Dept.
Date: Fri, 4 Dec 1992 13:07:29 GMT
Lines: 27

Hi,

We are using ConvexAVS with an X-terminal and an Iris Indigo Workstations to view results. One thing that I dont understand is this: why do these two machine have a different number of simultaneous colours in the colourmap generator. The Indigo only has 16 colours on the colourmap while the X-server has 32!! How do I go about getting to use more colours and thereby minimise dithering?? I dont see why I can't get up to about 216 colours. 

Please can someone help - I'm going crazy seeing my data brutalized into this small set of colours.

What is the best way to display 8-bit grey-scale images? It is pointless having to convert them into images. When I do convert them and use display image I get terrible results compared to hqdisplayimage, but there are only about 180 seperate colours. Why do I have to see dithering when I'm only using so few colours? How do I control the pallete of colours that my X-server is using in terms of normal images so that I can create e.g. animations, do resizing. etc? Hqdisplayimage is not very good at offering 





image manipulation.

I'm really confused and would appreciate any info.

Kind Regards,
Wayne.

*********************************************************************
* Wayne Smith                         (wayne@concave.cs.wits.ac.za) *   
* University of the Witwatersrand      Phone (011) 716-3295         * 
* Computer Sciece Department                                        *
* P.O Box WITS                                                      *
* Johannesburg                                                      *
* 2050                                                              *
* South Africa                                                      *
*********************************************************************




From James Peters <peters@convex.COM>
Subject: Re: AVS-Remote-Modules
Message-ID: <1992Dec04.153323.21055@convex.com>
Originator: peters@mikey.convex.com
Keywords: AVS-Remote-Module
Sender: usenet@convex.com (news access account)
Nntp-Posting-Host: mikey.convex.com
Reply-To: peters@convex.COM (James Peters)
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
References: <1992Dec2.145656.8803@alijku05.edvz.uni-linz.ac.at>
Date: Fri, 04 Dec 1992 15:33:23 GMT
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.
Lines: 25

In article <1992Dec2.145656.8803@alijku05.edvz.uni-linz.ac.at> ahaus@dke.uni-linz.ac.at writes:
>Because we have a secure network, i tried to run /usr/avs/bin/c_rsh.
>I started it manually from my shell-window with c_rsh "nCube -n" to
>create a remote shell on the remote host nCube.
>That fails and their was message "AVS_NCUBE -N_TICKET ist not defined"!
>
>What`s wrong and what can I do?
>
>Thanks
>Andreas

%/usr/avs/bin/c_rsh -usage
Usage:
    /usr/avs/bin/c_rsh host command
%/usr/avs/bin/charon
Type the following in the window AVS will be run from:
	(if using C shell)
		setenv AVS_MIKEY_TICKET 246415889

	(or if using Bourne shell)
		AVS_MIKEY_TICKET=246415889
		export AVS_MIKEY_TICKET

regards,
james, peters@convex.com


From James Peters <peters@convex.COM>
Subject: Re: Generate Colourmap???
Message-ID: <1992Dec04.190031.1476@convex.com>
Originator: peters@mikey.convex.com
Sender: usenet@convex.com (news access account)
Nntp-Posting-Host: mikey.convex.com
Reply-To: peters@convex.COM (James Peters)
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
References: <1992Dec4.130729.17617@shannon.ee.wits.ac.za>
Date: Fri, 04 Dec 1992 19:00:31 GMT
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.
Lines: 37

In article <1992Dec4.130729.17617@shannon.ee.wits.ac.za> wayne@concave.cs.wits.ac.za (Wayne Smith) writes:
>Hi,
>
>We are using ConvexAVS with an X-terminal and an Iris Indigo Workstations
>to view results. One thing that I dont understand is this: why do these 
>two machine have a different number of simultaneous colours in the colour-
>map generator. The Indigo only has 16 colours on the colourmap while the
>X-server has 32!! How do I go about getting to use more colours and thereby
>minimise dithering?? I dont see why I can't get up to about 216 colours. 
>
>Please can someone help - I'm going crazy seeing my data brutalized into
>this small set of colours.
>
>What is the best way to display 8-bit grey-scale images? It is pointless
>having to convert them into images. When I do convert them and use display
>image I get terrible results compared to hqdisplayimage, but there are only
>about 180 seperate colours. Why do I have to see dithering when I'm only
>using so few colours? How do I control the pallete of colours that my X-
>server is using in terms of normal images so that I can create e.g. ani-
>mations, do resizing. etc? Hqdisplayimage is not very good at offering 
>image manipulation.
>
>I'm really confused and would appreciate any info.
>
>Kind Regards,
>Wayne.

you may make to experiment with using different VisualID's instead of the
first one avs grabs. to find what visuals are available on your display
use the client xdpyinfo. then either make an entry to your .avsrc or set
an environment variable to use the visual of your choice, reference man avs.
you may also want to use the convexavs specific module color_editor, refer-
ence avs_help color editor. this module was written by rick franklin and is 
pretty slick.

regards,
james, peters@convex.com


From mohan@tulip.cse.utoledo.edu (Mohan Pakkurti)
Date: 5 Dec 92 19:33:53 EST
Nntp-Posting-Host: tulip.es.utoledo.edu
Lines: 21


Please reply to mohan@jupiter.cse.utoledo.edu
                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Hi,

Can someone please tell me the name of some introductory book for 
visualization ?

My school has plans to get a copy of AVS and a big Silicon Graphics IRIS.
and I want to learn some fundamentals before the machine and software are here.

Is AVS a cool software to have fun with, I really dont know what I want to
do with it?

Thanks for info :)
mohan
-- 
===============================================================================
+ Mohanakrishna Pakkurti            + mohan@jupiter.cse.utoledo.edu           +
+ HOME: 2239 University Hills Blvd #204, Toledo OH 43606. Phone:(419)536-9073 +
===============================================================================


From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: What book for intro to Visualization?
Message-ID: <1992Dec6.111657.54@rcwusr>
Date: 6 Dec 92 11:16:57 -0600
References: <1992Dec5.193354.302@uoft02.utoledo.edu>
Organization: BP Research, Cleveland, OH (USA)
Lines: 55

In article <1992Dec5.193354.302@uoft02.utoledo.edu>, mohan@tulip.cse.utoledo.edu (Mohan Pakkurti) writes:
> 
> Please reply to mohan@jupiter.cse.utoledo.edu
>                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Hi,
> 
> Can someone please tell me the name of some introductory book for 
> visualization ?

There is a FAQ in the visualization newsgroup.  They refer to the two Tufte
books.  There is an IEEE volume on Visualization and several more technical
ones.  ACM's SIGGRAPH have some excellent videos show applications of
visualization and animation.

> 
> My school has plans to get a copy of AVS and a big Silicon Graphics IRIS.
> and I want to learn some fundamentals before the machine and software are here.
> 
> Is AVS a cool software to have fun with, I really dont know what I want to
> do with it?
> 
> Thanks for info :)
> mohan
> -- 
> ===============================================================================
> + Mohanakrishna Pakkurti            + mohan@jupiter.cse.utoledo.edu           +
> + HOME: 2239 University Hills Blvd #204, Toledo OH 43606. Phone:(419)536-9073 +
> ===============================================================================

AVS *IS* software to have fun with!  First, run through the Help demonstration
files from the AVS window.  Look at the networks they produce.  About the same
time, read the AVS User Manual.

If you have access to real data, figure out how to get the data you have into:
	Volume format
	Field format
	Image format.

Then "look" at your data.

If you have the PHIGS demo (we're running on a Stardent/Kubota Pacific Titan,
so I don't know what SGI provides ...), look at the PHIGS-based demo suite in
/opt/demo/Demo.

If you need data, there's plenty on the Internet.

If you want to drive East for a couple of hours, you are welcome to visit and
see what we are doing with AVS.  We can also show you some of the
aforementioned videos.

Rob Lake
BP Research
lake@rcwcl1.dnet.bp.com
Cleveland (Warrensville Hts.), Ohio



From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: AVS '93 order your program
Message-ID: <ByvDB7.Iss@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 7 Dec 1992 03:21:07 GMT

Hi Folks,

AVS '93 will be here before you know it!  The 2nd annual AVS User
Group Conference promises to be a successful meeting with its
theme of "The Magic of Science".  There will be more than 100 different
events, including lectures, workshops, tutorials, panels, user group
meetings, and vendor exhibits.  Plus its located next to Disneyworld!
Advance programs will be ready for mailing shortly.  If you're interested
in receiving one, please send your name, address, email address, phone #,
and Fax # to avs93@ncsc.org.

FYI - here is the rest of the IAC's contact info:

Have fun AVSing,

-Steve

****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfelv
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future 
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

support@avs.com	   email here if you are interested in purchasing AVS.
                   This will go to AVS Inc. in Waltham, Massachusetts.
		   The IAC does NOT sell AVS, we give away AVS modules.

****************************************************************************
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------


From arp@cooper!osd (Andrew Pinkowitz)
Subject: SIGGRAPH International Computer Animation Festival FINAL
Message-ID: <1992Dec7.185255.9788@cooper!osd>
Keywords: graphics animation nyc acm siggraph
Organization: Online Systems Development ( NY, NY)
Date: Mon, 7 Dec 92 18:52:55 GMT
Lines: 35

======================================================================
                NYC ACM/SIGGRAPH: DECEMBER CALENDAR
======================================================================

  SUBJECT:  International Computer Animation Festival
            =========================================
                        & HOLIDAY PARTY
                        ===============

        Hosted by:
            Dean Winkler, Post Perfect
            Gray Lorig, SIGGRAPH '92 Electronic Theater Chair
               && The French Embassy

            Selections screened will include materials from
                IMAGINA (France),
                VIDEOTECH de Milano (Italy),
                ARS ELECTRONICA (Austria[!!]),
                MIMAD (Spain), and
                IMAGE DU FUTURE (Canada).

            The party will be hosted by the French Embassy.

     DATE:  Thursday, 10 December 1992

     TIME:  6:00 pm (EST)

    PLACE:  The Haft Auditorium
            Fashion Institute of Technology (F.I.T.)
            227 West 27th Street, "C" Building
            NY, NY

ADMISSION:  Members FREE
            Students $3.00
            Non-Members $7.00 (Includes Refreshments)


From naglac@vax.oxford.ac.uk
Newsgroups: comp.graphics.avs
Subject: Re: What book for intro to Visualization?
Message-ID: <1992Dec7.145921.10649@vax.oxford.ac.uk>
Date: 7 Dec 92 14:59:20 GMT
References: <1992Dec5.193354.302@uoft02.utoledo.edu>
Organization: Oxford University VAX 6620
Lines: 32

In article <1992Dec5.193354.302@uoft02.utoledo.edu>, mohan@tulip.cse.utoledo.edu (Mohan Pakkurti) writes:
> 
> Please reply to mohan@jupiter.cse.utoledo.edu
>                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
> Hi,
> 
> Can someone please tell me the name of some introductory book for 
> visualization ?
> 
> My school has plans to get a copy of AVS and a big Silicon Graphics IRIS.
> and I want to learn some fundamentals before the machine and software are here.
> 
> Is AVS a cool software to have fun with, I really dont know what I want to 
> do with it?

I would recommend the following companion books:

  Earnshaw & Wiseman `An Introductory Guide to Scientific Visualization' 
  Springer-Verlag ISBN 3-540-54664-2

and 

  Brodlie et al `Scientific Visualization - Techniques and Applications'
  Springer-Verlag ISBN 3-540-54565-4

Both give an good introduction to the discipline and are full of useful 
references, details of products etc.

Regards

Lesley Brankin
NAG


From g.coulter@daresbury.ac.uk (Gary)
Subject: Machester (UK) AVS Shadow?
Message-ID: <1992Dec8.120657.2227@gserv1.dl.ac.uk>
Reply-To: g.coulter@daresbury.ac.uk
Organization: Daresbury Laboratory, UK
Date: Tue, 8 Dec 1992 12:06:57 GMT
Lines: 10

Hi Everyone, out there!

Well what I would like to know is what is the address of the Manchester
Shadow for the Noth Carolina Module repository so that I can get some
modules from their using FTP.

Thanks. Gary.





From C.A.Blunsdon@lut.ac.uk (CA Blunsdon)
Subject: read_field
Message-ID: <1992Dec8.144355.23222@lut.ac.uk>
Reply-To: C.A.Blunsdon@lut.ac.uk (CA Blunsdon)
Organization: Loughborough University, UK.
Date: Tue, 8 Dec 92 14:43:55 GMT
Lines: 5

Anyone have their own version of read_field that they'd be prepared
to share with me? (It's a long story, but having my own version seems
to be the most convenient way forward at present.) Thanks.




From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Shadow FTP sites
Message-ID: <ByyCxC.D7p@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Tue, 8 Dec 1992 18:05:36 GMT

Hi Folks,

There was a question earlier today about shadow ftp sites.
Here are the ones I know about; FYI -

The IAC server (the most up to date):
avs.ncsc.org:   (128.109.178.23)

The France server:
lanor.matups.fr:pub/AVS (192.54.146.50)

The UK server:
hpb.mcc.ac.uk:pub/cgu/avs (130.88.200.7)

The German server:
ftp.EMBL-Heidelberg.De:AVS/ncsc (192.54.41.33)

Have fun,

-Steve
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------




From he@casbah.acns.nwu.edu (Liang He)
Subject: Want: Info on AVS
Message-ID: <1992Dec8.184446.14880@news.acns.nwu.edu>
Followup-To: l-he@nwu.edu 
Sender: usenet@news.acns.nwu.edu (Usenet on news.acns)
Nntp-Posting-Host: unseen1.acns.nwu.edu
Organization: Northwestern University, Evanston Illinois.
Date: Tue, 8 Dec 1992 18:44:46 GMT
Lines: 12

Hello Everyone,

	Where can I get general information of AVS? Like
its functionalities, list price, academic price, etc.
Could anyone send the address, phone number, fax number,
and email address of the company to me? Thanks.

Liang He
l-he@nwu.edu





From he@casbah.acns.nwu.edu (Liang He)
Subject: Want: Info about AVS
Message-ID: <1992Dec8.183503.14655@news.acns.nwu.edu>
Sender: usenet@news.acns.nwu.edu (Usenet on news.acns)
Nntp-Posting-Host: unseen1.acns.nwu.edu
Organization: Northwestern University, Evanston Illinois.
Date: Tue, 8 Dec 1992 18:35:03 GMT
Lines: 7

Hello Everyone,

	Where can I get the information about functionality,
price, etc. of AVS? Could anyone send me the address, phone
fax, email, etc. of the company? Thanks.

Liang


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Re: read_field
Message-ID: <Byz3Ju.26u@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Wed, 9 Dec 1992 03:40:41 GMT

Hi AVSers,

In an earlier posting,  C.A.Blunsdon@lut.ac.uk wrote:

> We don't have the read_field module on site, but  we do have
> many data input modules that read fields.  Here is but one of
> them that might be useful to you.  This module was written
> by Wes Bethel, and can be found in

	avs.ncsc.org:avs_modules/data_input/read_rectilinear/*

It may be a good starting point....

AVS Modules						    read rectilinear
Lawrence Berkeley Laboratory					   July 1992

NAME
	read rectilinear

SUMMARY
	Name	read rectilinear
	Type	data
	Inputs	none
	Output	field rectlinear
	Parameters	Name		Type
			File Name	Browser

DESCRIPTION
	This module reads data in ascii format into an "rectilinear
	field" data structure.

	The disk file is structured to contain information about
	the field at the beginning of the file, followed by the
	data.

	Specifically, the file format this module expects is:
	
	Number of coordinate dimensions:	m
	Dimension 1:				length of dimension 1
	Dimension 2:				length of dimension 2
	   .
	   .
	   .
        Dimension m:				length of dimension m
	Data Vector Length
	Coordinates for dimension 1
	Coordinates for dimension 2
	   .
	   .
	   .
	Coordinates for dimension m
	data

	Or, more broadly, the input file is divided into three broad
	subsections:

		1.	header information
		2.	coordinate information
		3.	data information

	Each of the specification values, number of data dimensions,
	length of dimension, and data vector length,
	are integers separated by whitespace.  

	Immediately following the header information is the coordinate
	information for the field.  The coordinates are logically
	organized so that all the X-coordinates are listed first (the number
	of X-coordinates is specified by the length of "dimension 1"),
	then all the Y-coordinates (length of dimension 2), etc.

	After the coordinate information is the data.  The data is 
	organized such that if the data vector length is N, the first
	N data items are interpreted as being the data vector at the
	first grid location X[0],Y[0]...W[0]; the next N items are
	the data vector at the next grid location X[1],Y[0]...W[0].
	(The use of X,Y,..W labels for coordinates is for illustration
	only.)

	See the EXAMPLE section below for more info.

INPUTS	

PARAMETERS

	This module accepts as a parameter a file name.  The user
	is provided a file browser.

OUTPUTS
	"Field float", any-vector, rectilinear.

EXAMPLE
	In this example, we have a 2 by 3 grid of 2 vector values.
	This two-dimensional dataset represents height and temperature
	at each location of a small grid.  The comments in the
	example below are delimited with double slashes "//".  These
	should NOT be included in any of your data files.

	2   	// two data and spatial dimensions
	2	// length of first dimension
	3	// length of second dimension
	2	// data vector length is 2
	0.1 15.2	// the two x coordinates
	0.3 .2 .6e-3   // the three y coordinates
	10 3.1e-2	// data at x[0],y[0]
	11 2.9e-2	// data at x[1],y[0]
	9  .02		// data at x[0],y[1]
	9.5 1.9e-2	// data at x[1],y[1]
	8.33 1.99e-2	// data at x[0],y[2]
	8.0 .5e-2	// data at x[1],y[2]

LIMITATIONS

	Inserting comments into your ascii file will result in errors.

RELATED MODULES
	write rectilinear

NOTES

AVS Modules						    read rectilinear
Lawrence Berkeley Laboratory					   July 1992


These and more that 600 other AVS modules may be obtained from the 
International AVS Center -

International AVS Center Contact Info:
-------------------------------------
International AVS Center
North Carolina Supercomputing Center
3021 Cornwallis Road
Research Triangle Park, NC 27709

avs93@ncsc.org	   email name, address, phone, fax, email address
		   here to receive a packet on AVS '93 

avs@ncsc.org	   email questions to IAC staff here

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest IAC readme

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
(128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

Please feel free to utilize our ftp site, and email us with any
questions you might have.  I would recommend sending any message to
avsemail@ncsc.org, and checking over the automated informational replies
that you will then receive.

Have fun!

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------


From eugene@wilbur.nas.nasa.gov (Eugene N. Miya)
Subject: Re: What book for intro to Visualization?
References: <1992Dec5.193354.302@uoft02.utoledo.edu> <1992Dec6.111657.54@rcwusr>
Sender: news@nas.nasa.gov (News Administrator)
Organization: NAS, NASA Ames Research Center, Moffett Field, CA
Date: Thu, 10 Dec 92 07:23:15 GMT
Message-ID: <1992Dec10.072315.4658@nas.nasa.gov>
Lines: 22

Hi Rob!

>> Can someone please tell me the name of some introductory book for 
>> visualization ?
>
>There is a FAQ in the visualization newsgroup.  They refer to the two Tufte
>books.

While the FAQ does point to the Tufte books, I think the books are more
considered coffee table reference rather than an introductory textbooks
(something akin to Don Norman's books like The Psychology/Design of
Every Day Things). The keyword for the Tufte books is "ducks;" scan the
books and the reader will find the signficance.

Hey, good book reviews taken anytime.

--eugene miya, NASA Ames Research Center, eugene@orville.nas.nasa.gov
  Associate Editor, Software and Publication Reviews
  Scientific Programming
  {uunet,mailrus,other gateways}!ames!eugene
Seeking Books to buy:	Bongard, Pattern Recognition
			3 down 1 to go.


From ljs@cs.brown.edu (Lee J. Silverman)
Subject: Spectral Analysis?
Message-ID: <1992Dec10.221026.15060@cs.brown.edu>
Keywords: 
	Has anyone done any work with spectral analysis with AVS?  
Sender: news@cs.brown.edu
Organization: Brown Computer Science Dept.
Date: Thu, 10 Dec 1992 22:10:26 GMT
Lines: 10

The data I have will be in the form of planes of points, each point
having a certain absorbtion spectrum.  Each plane of points represent
the same physical point, but different wavelengths of data that are being
absorbed.

Any input anyone has would be most appreciated.

-- 
Lee Silverman
Pandion@Brown.Edu


From larryg@avs.com (Larry Gelberg)
Subject: Re: Stereo version of AVS4
References: <28098@oasys.dt.navy.mil>
Sender: nobody@ctr.columbia.edu
Organization: Advanced Visual Systems Inc.
Date: Fri, 11 Dec 1992 14:54:47 GMT
X-Newsreader: Tin 1.1 PL4
Message-ID: <1992Dec11.145447.798@sol.ctr.columbia.edu>
X-Posted-From: aurora.avs.com
NNTP-Posting-Host: sol.ctr.columbia.edu
Lines: 23

lipman@oasys.dt.navy.mil (Robert Lipman) writes:
: At SIGGRAPH 92, a stereoscopic version of AVS4 was being shown in
: the AVS booth.  It used CrystalEyes stereo glasses and the Logitech
: head tracker.  The stereo was available only in the geometry viewer
: module.
: 
: What is the availability of this stereo version of AVS.  We'd really
: like to have that capability with AVS.

This feature is only available on the SGI version of AVS because (1)
it needs stereo supported by the hardware and (2) we need the InScape
library to link with and that has only been provided to us for the SGI. 
It is "available" for SGI-AVS4 and will be a built-in feature of
SGI-AVS5.  (By "available", I mean "not part of the released product,
but we can get it to you - ask your friendly AVS sales rep")

larryg

--
=== Larry Gelberg ============================ larryg@avs.com =======
      Advanced Visual Systems Inc. (AVS Inc.)
      300 Fifth Ave, Waltham, MA 02154
===== Tel: 617-890-4300 = Fax: 617-890-8287 =========================


From larryg@avs.com (Larry Gelberg)
Subject: Re: Suggested enhancement to 'display image' module
References: <2B1EA9FB.12216@news.service.uci.edu>
Sender: nobody@ctr.columbia.edu
Organization: Advanced Visual Systems Inc.
Date: Fri, 11 Dec 1992 15:03:14 GMT
X-Newsreader: Tin 1.1 PL4
Message-ID: <1992Dec11.150314.1095@sol.ctr.columbia.edu>
X-Posted-From: aurora.avs.com
NNTP-Posting-Host: sol.ctr.columbia.edu
Lines: 31

ehood@hydra.acs.uci.edu (Earl Hood) writes:
: 
: This message is directed to AVS Inc.
: 
: I think it would be nice that the 'display image' module outputed a
: upstream structure that contains coordinate information of where the
: mouse was clicked in an image.  

This has been a frequently requested feature since AVS3 and we're 
finally doing something about it!  AVS5 will feature (among other
things) extensive upstream data from the 'image viewer'.  This is 
supported by several example modules which do things like: probe cursor
locations and data values, draw on an image, put up a rubber-band
line and compute both the screen distance and image distance along 
the line, etc.

Source code for these modules will be provided in the examples 
directory.  Our beta feedback on this feature has been pretty good
so far, so we feel like we've got a good solution here.

I'd tell you more about AVS5, but I don't want to steal the thunder
from our Marketing group which is busy preparing feature lists and
other collateral materials!  Stay tuned...

larryg

--
=== Larry Gelberg ============================ larryg@avs.com =======
      Advanced Visual Systems Inc. (AVS Inc.)
      300 Fifth Ave, Waltham, MA 02154
===== Tel: 617-890-4300 = Fax: 617-890-8287 =========================


From dianne@doppler.ncsc.org (Dianne Reid)
Subject: AVS Network News
Message-ID: <Bz3pvx.4D8@doppler.ncsc.org>
Summary: AVS Network News available on IAC ftp site 
Organization: North Carolina Supercomputing Center
Date: Fri, 11 Dec 1992 15:33:33 GMT



The first two isses of AVS Network News are now available on the
International AVS Center's ftp site in avs_net_news.  The last issue 
(Volume 1,Issue 2) will be available shortly.  All future issues of AVS 
Network News will be put on the ftp site at some point after the hardcopy 
is mailed to subscribers. 
 
****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfelv
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

617-890-4300       Advanced Visual Systems Inc. phone number.
		   Call here if you are interested in purchasing AVS.

617-890-8287	   AVS Inc.'s FAX Number

****************************************************************************

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
Dianne Reid
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------


From bdickens@elara.mitre.org (Brian Dickens)
Subject:  LANSAT data in AVS
Message-ID: <1992Dec12.163258.6124@linus.mitre.org>
Keywords:  GIS, LANSAT, AVS
Sender: news@linus.mitre.org (News Service)
Nntp-Posting-Host: elara.mitre.org
Organization: Research Computer Facility, MITRE Corporation, Bedford, MA
Date: Sat, 12 Dec 1992 16:32:58 GMT
Lines: 8

I'm attempting to load a LANSAT image into AVS.

I was wondering if anyone had done this, or had information about the image format.

Thanks...

-bdickens



From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Looking for Phil McDonald
Message-ID: <1992Dec13.073201.62@rcwusr>
Date: 13 Dec 92 07:32:01 -0600
Organization: BP Research, Cleveland, OH (USA)
Lines: 8

I would like to contact:
 Phil McDonald, NOAA/ERL/Forecast Systems Laboratory 

Rob Lake
BP Research
lake@rcwcl1.dnet.bp.com
216-581-5976



From srinivas@lgc.com (Manapragada Srinivas)
Subject: Building Geometry Hierarchies
Message-ID: <1992Dec14.164027.26631@lgc.com>
Sender: usenet@lgc.com
Nntp-Posting-Host: squirt.lgc.com
Organization: Landmark Graphics LGC
Date: Mon, 14 Dec 1992 16:40:27 GMT
Lines: 63

Hi,

	I am not really sure if this should be a bug report. I am trying to
build geom hierarchies wherein the geometries are being created by different
modules. Unfortunately the geom naming convention of concatenating the module
instance number at the end, prevents this.

	For example consider two Modules A and B, which produce two geometries
G1 and G2 respectively. Furthermore Module A sends the name of its geom "G1"
on a string port to Module B. Module B then tries to set the parent of its
geometry to this name ("G1"). Assume also that Module B waits until the data
on the string port (geometry name) arrives.

	The hierarchy under top shows up as follows

	top
		G1.0
		G1.1
			G2.1

	and if were to guess the correct name of G1 and pass down G1.0 to mod B
	the following hierarchy shows up

	top
		G1.0
		G1.0.1
			G2.1

	Whereas the intended hierarchy was either

	top
		G1
			G2

	or less preferrably

	top
		G1
			G2.1

	Is there any way of turning off the concatenation of the instance
number? I guess am looking for a way by which I can refer to geometries within
a module created by other geometries.

	The only other alternative would be for us to write a module which
would have geometry inputs ( no proper documentation for doing so, and
probably a frowned upon practice ), which would then set up the hierarchies.

	I probably might be missing something, however I searched the AVS4
manuals and AVS5 updates, and didn't find anything which would help me.

	I tried using AVSset_object_group but the group name didn't show up
in the object browser.

	Any help in this matter would be greatly appreciated,

Thanks
Srinivas

Landmark Graphics Corp.

-- 
Yonder, beyond the event horizon!


From petelev@convex.com (Pete Levinthal)
Subject: Re: Building Geometry Hierarchies
Sender: usenet@news.eng.convex.com (news access account)
Message-ID: <1992Dec14.193128.8763@news.eng.convex.com>
Date: Mon, 14 Dec 1992 19:31:28 GMT
References: <1992Dec14.164027.26631@lgc.com>
Nntp-Posting-Host: imagine.convex.com
Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.
Lines: 9

>         Is there any way of turning off the concatenation of the instance
> number? I guess am looking for a way by which I can refer to geometries within
> a module created by other geometries.

Place a % (percent character) at the begining of the string supplied in your
GEOMedit_geometry call.  This is from the ConvexAVS 3.9 GEOM Reference section
and should apply to all versions and ports of AVS.

Pete


From thorpe@doppler.ncsc.org (AVS account)
Subject: Ocean Simulating in AVS
Message-ID: <Bz9uvr.7o5@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 14 Dec 1992 23:07:02 GMT

Hi folks,

Just dropping this to the net for a user from Israel who
doesn't have newsgroup access.  Please drop me an email
if you have a response for him, and I'll see that he
gets it.  Thanks!

         --------------------------------------------------
User: "tavis::mrgate::a1::glass.yossi"@tavis.enet.dec.com
Submission Date: Mon Dec 14 11:26:49 EST 1992
From:   NAME: Yossi Glass @ISO
        FUNC: Israel SA/ELS

What I want to do with AVS is to create an animated view of the ocean and
few ships/vessels on it, disappearing/reappearing beyond waves. Sone kind
of simulator, actually.

So, actually, two different things:
o An animated view of something that will look like the ocean. It does not
  have to be very detailed; What it needs to do is to create the effect of
  moving waves.
o 3D models of military vessels, similar to the jet.geom in the AVS
  standard data files.

I know that AVS is not designed to create realtime simulators; However, I
would like to hear about similar things that have been done with AVS (or
on top of PHIGS/PEX).

Thanks,
Yossi (fax #972-52-542530, phone #972-52-593254).

         --------------------------------------------------

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------

Also, FYI:
****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfeld
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

617-890-4300       Advanced Visual Systems Inc. phone number.
		   Call here if you are interested in purchasing AVS.

617-890-8287	   AVS Inc.'s FAX Number

****************************************************************************
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From thorpe@doppler.ncsc.org (AVS account)
Subject: Only 2 weeks left!
Message-ID: <Bz9uz1.7q9@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 14 Dec 1992 23:09:01 GMT

Hi Folks,

Only two weeks left to submit modules for our quarterly
contest.... details below.

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------
----------------------------------------------------------------
CONTEST!!!   CONTEST!!!    CONTEST!!!   CONTEST!!!    CONTEST!!!
----------------------------------------------------------------

The International AVS Center's module repository 
has been very successful in its first year.  There 
are now over 600 public domain AVS modules available 
for your scientific visualizatition use!  Thanks to 
all who have so generously shared their work!

To encourage continued submissions, and as a reward
for the modules already contributed, the IAC is
implementing a quarterly contest.  The author of the
"best" module contributed in a quarter will receive
his/her choice of $250 cash (U.S. funds), or $250 
credit towards attendance at AVS '93 ( to be held
May 24-26 in Orlando, Florida ).  Some of the criteria 
considered in a module's evaluation include the module's: 

	1)  Utility 
	2)  Uniqueness
	3)  Popularity 

These are not necessarily all inclusive or in any 
particular order.  The final decision as to who wins
the award will be made by the IAC.

The contest will be for three quarters, October 1, 1992 until
December 31, 1992, January 1, 1993 until March 31, 1993 and
lastly, April 1, 1993 until the AVS '93 conference on May 24, 1993.
Submissions for each quarter must be received before midnight on
the final day (EST).

We have selected a lucky winner for the time preceeding Oct 1, 1992.
For his many module contributions and their usefulness to the AVS community
according to our download statistics, we have selected Wes Bethel
from Lawrence Berkeley Laboratories.  We did not want the donations
for the first year to go unrewarded.  Thanks from the IAC and all 
the AVS User community for your more than many module contributions, 
including the following and more:

	animate_floa
	animate_inte
	animated_str
	plot_xyz
	plot_xyz_col
	read_irregul
	read_uniform
	add_coords_2
	add_coords_3
	add_cps
	byte_image_t
	float_image
	collage
	xform_field
	irreg_2_reg
	new_crop
	persp_field
	vec_mag_2d_v
	new_arbitrar
	bivar
	field_to_con
	scat_2d
	scat_3d
	dump_sunras
	dump_icc
	dump_ps
	image_2_icc
	output_color
	output_8bit
	write_irreg
	write_reg
	hsv_to_rgb
	rgb_to_hsv
	bin_field
	psfilter
	trivar
	LBL_bezier_v
	new_ortho_sl
	write_compressed
	read_compressed
	3D_axis

IAC and MCNC staff and their families are not eligible for the
contest.  Employees and their families from Advanced Visual
Systems, Inc are also not eligible for the contest.  All other
entries will be equally considered.  We are a non-profit organization.

Have fun coding, and thanks again for an extremely
successful first year!


International AVS Center Contact Info:
-------------------------------------
International AVS Center
North Carolina Supercomputing Center
3021 Cornwallis Road
Research Triangle Park, NC 27709

Please send AVS related articles for the AVS Network News magazine.

avs93@ncsc.org	   email for here information on The 2nd Annual 
		   International AVS User's Group Conference, to be 
		   held May 24-26, 1993 outside of Orlando, Florida

avs@ncsc.org	   email questions to IAC staff here

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest IAC readme

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
(128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From nadeau@sdsc.edu (Dave Nadeau,,45062)
Newsgroups: comp.graphics.avs
Subject: SDSC Image Tools V2.1 Release
Date: 14 Dec 1992 23:10:19 GMT
Organization: San Diego Supercomputer Center @UCSD.
Lines: 140
Distribution: world
Message-ID: <1gj48rINN6rd@network.ucsd.edu>
Reply-To: nadeau@sdsc.edu
NNTP-Posting-Host: dudley.sdsc.edu
Keywords: image file format, graphics, pixel utilities, image processing

		      S D S C   I M A G E   T O O L S

			         Version 2.1
			        December 1992

		        **** RELEASE ANNOUNCEMENT ****

The San Diego Supercomputer Center is pleased to announce the version 2.1
release of its FREE, portable Image Tools software.

The SDSC Image Tools support a wide range of image file formats, including:

	Format  Description
	------- --------------------------------------------------------
	bmp     Microsoft Windows bitmap image file
	cur     Microsoft Windows cursor image file
	eps     Adobe Encapsulated PostScript file
	gif     Compuserve Graphics image file
	hdf     Hierarchical Data File
	ico     Microsoft Windows icon image file
	icon    Sun Icon and Cursor file
	iff     Sun TAAC Image File Format
	mpnt    Apple Macintosh MacPaint file
	pbm     PBM Portable Bit Map file
	pcx     ZSoft IBM PC Paintbrush file
	pgm     PBM Portable Gray Map file
	pic     PIXAR picture file
	pict    Apple Macintosh QuickDraw/PICT file
	pix     Alias image file
	ppm     PBM Portable Pixel Map file
	pnm     PBM Portable aNy Map file
	ps      Adobe PostScript file
	ras     Sun Rasterfile
	rgb     SGI RGB image file
	rla     Wavefront raster image file
	rle     Utah Run length encoded image file
	synu    SDSC Synu image file
	tga     Truevision Targa image file
	tiff    Tagged image file
	viff    Khoros Visualization image file
	x       AVS X image file
	xbm     X11 bitmap file
	xwd     X Window System window dump image file

The tools include extensive support for formats with multiple variants for
different image depths and compression schemes.

Individual sites may reconfigure the Image Tools to support additional
site-specific file formats.  Sample source code is provided as part of
the release.

The SDSC Image Tools include command-line tools for the manipulation of
images in any of the above file formats.  The version 2.1 release expands
the tool suite to include the following tools:

	Tool		Description
	--------------- ------------------------------------------------
	imadjust	Adjust image colors, desaturate, brighten, etc.
	imcat		Concatenate images into multi-image files
	imcltroll	Cycle a color lookup table
	imcomp		Digitally composite images
	imconv		Convert between all supported image file formats
	imcopy		Copy a portion of an image into a new file
	imfile		Display image attributes
	imfill		Fill a region of an image with a color or gradient
	imflip		Flip an image horizontally or vertically
	imformats	Describe image file format support
	imgray		Convert to grayscale
	imhist		Compute an image histogram
	immono		Convert to monochrome
	impaste		Paste an image into another
	imroll		Cycle an image horizontally or vertically
	imrotate	Free rotate an image
	imscale		Scale an image up or down
	imshear		Shear an image horizontally or vertically
	imsplit		Split apart multi-image files

All tool functionality is contained within a C library of functions, making
it easy to create new custom tools.

The SDSC Image Tools are released in binary form for the following UNIX
machine architectures:

	Architecture	Description
	--------------- ------------------------------------------------
	alliantfx2800	Alliant Computers, FX/2800
	crayy		Cray Research, Cray Y-MP (UNICOS)
	decstation	Digital Equipment Corp, DECStation (ULTRIX)
	decvax		Digital Equipment Corp, VAX (ULTRIX)
	hp700		Hewlett-Packard 700
	next		NeXT
	sgi4d		Silicon Graphics, SGI 4D
	sun4		Sun Microsystems, Sun 4 and SPARC

Additional architectures are forthcomming.

The SDSC Image Tools are available for uploading via anonymous ftp from
'ftp.sdsc.edu'.  The anonymous ftp directory tree is structured by
machine architecture, and then by topic.  For instance, to get the SDSC Image
Tools for a Sun 4, use:

	ftp> cd sdscpub
	ftp> cd sun4
	ftp> cd graphics
		or
	ftp> cd [.sdscpub.sun4.graphics]

	ftp> type binary
	ftp> get IMTOOLS_V2_1_TAR.Z imtools_v2_1.tar.Z

For most architectures, software is bundled in both tar and cpio format and
compressed using the UNIX 'compress' utility.

Tool binaries, object library, release notes, and tool and library man pages
(nroff source, post-nroff text, and PostScript) are included.  Tool source
code is included.  Library source is not provided except for sample source
illustraiting how to add support for additional site-specific image file
formats.

00README's and 00INDEX's in the ftp directories explain their contents.
To get one of these, use:

	ftp> get 00README 00README
	ftp> get 00INDEX 00INDEX

Questions about the SDSC Image Tools, or any SDSC software products, may
be directed to:

	E-mail:		info@sdsc.edu
	Phone:		(619) 534-5100, M-F 8am-5pm, pacific time

Thank you.


---
Dave Nadeau						nadeau@sdsc.edu
Advanced Scientific Visualization Laboratory		(619) 534-5062
San Diego Supercomputer Center
P.O. Box 85608   San Diego, CA   92186-9784



From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Help with Creating Colored, Time-Varying, Geometric Object
Message-ID: <1992Dec15.064951.65@rcwusr>
Date: 15 Dec 92 06:49:50 -0600
Organization: BP Research, Cleveland, OH (USA)
Lines: 17

I am setting forth on my first major AVS application.  This involves
visualizing air pollution data superimposed on a map.  The map is a geometry
object and I would like to create colored circles/spheres/objects at four
particular locations on the map.  The color of these objects would vary as
Animated Integer and a Slicer step through a data file of hourly pollution
readings.

In a later stage, the map will become the output of a Field-to-Mesh module,
with the same requirement for colored circles/spheres/objects.

Any suggestions or hints would be most welcome!

Thank you,
Rob Lake
BP Research
lake@rcwcl1.dnet.bp.com



From wes@ux6.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.avs
Subject: Re: Help with Creating Colored, Time-Varying, Geometric Object
Date: 15 Dec 1992 16:11:23 GMT
Organization: Lawrence Berkeley Laboratory
Lines: 72
Message-ID: <1gl03bINNctv@overload.lbl.gov>
References: <1992Dec15.064951.65@rcwusr>
Reply-To: wes@ux6.lbl.gov (Wes Bethel)
NNTP-Posting-Host: ux6.lbl.gov

In article <1992Dec15.064951.65@rcwusr> lakerb@rcwusr.bp.com writes:
>..The map is a geometry
>object and I would like to create colored circles/spheres/objects at four
>particular locations on the map.  The color of these objects would vary as
>Animated Integer and a Slicer step through a data file of hourly pollution
>readings.
>
>In a later stage, the map will become the output of a Field-to-Mesh module,
>with the same requirement for colored circles/spheres/objects.
>

We've done similar work doing movies of earthquakes (we have a keen
interest in earthquakes ;-).

One of the biggest holes that folks fall into when doing visualizations
of multiple sets of different types of data is when the datum are in
different coordinate systems.  The map is in one system, the earthquakes
in another, etc. etc. etc.  It is an incredible pain.  The result is
that whoever is doing the visualization gets the thankless task of
rectifying these divergent coordinate systems, often the result of the
lack of communication (or worse, agreement) between the collaborating
factions.  Ok, having soapboxed, I'll pass along descriptions of a 
few subnetworks:

1. Colored spheres:

	read field -> bubbleviz -> scatter dots -> render geometry

	The field must be a 1d, 3space field; a list of points.  The
	data must be reducable to a scalar which you can color code.
	Use the opacity channel of the colormap to control the radius
	size of the spheres, in conjunction with the radius dial on
	scatter dots.  Thus, you can get colored spheres of varying
	radius.

	Pitfall: scatter dots only takes 1d, 3space fields.  I suggest
	that scatter dots be modified to take N-d, 3-space fields (hint,
	hint, AVS!).

	Adding the slicer between read_field and bubbleviz will give
	you the capability to animate this network.  Hint: use the
	interpolating slicer module at the IAC to do linear interpolation
	between integral slices.  This has worked well for us doing 
	particle collision tracking in nuclear experiments.  As presentations
	at Vis92 in Boston demonstrated, this type of interpolation can
	produce disastrous results for certain types of data (like
	combustion experiments, for example).  

2. Colored "objects"

	The same discussion holds, assuming that you have the capability
	to map from non-geometry to geometry, coupled with the capability
	to color the geometry using a colormap and a scalar value.  You
	may have to write a custom module, or rummage around at the IAC
	to find something suitable.

	My opinion is that these mapper-type modules are more useful when
	color and "shape" (like radius, or eccentricity or whatever) can
	be mapped to independent variables.  The bubbleviz module does
	colorizing and radius specification with a single independent
	variable.


In the future, I'd like to see the capability to colorize based on more
than one independent variable.  THis is awkward in AVS, but doable.  We
have a couple of modules here that perform this task: one variable maps
to hue while another maps to saturation.  I will put these modules at
the IAC in the not-to-distant future.

Happy holidays!

wes


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - ColorToBW
Message-ID: <BzBHyG.Gr8@doppler.ncsc.org>
Sender: avs@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Tue, 15 Dec 1992 20:23:04 GMT

Name        : ColorToBW       Version      : 1.000     Mod Number : 1563 
Author      : Steve Thorpe, International AVS Center
Submitted   : 12/15/92        Last Updated : 12/15/92  Language   : C        
Ported to   : DEC Kubota Convex HP IBM
Description : Converts an image from color to black and white, keeping the
              alpha channel the same in the resulting image.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - ucd_extract_new
Message-ID: <BzBLwn.Jn3@doppler.ncsc.org>
Sender: avs@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Tue, 15 Dec 1992 21:48:23 GMT

Name        : ucd_extract_new Version      : 1.000     Mod Number : 1564 
Author      : David Bock, North Carolina Supercomputing Center
Submitted   : 12/15/92        Last Updated : 12/15/92  Language   : C        
Ported to   : DEC IBM
Description : The ucd extract new module is a simple extension to the
              original ucd extract module. This module uses an integer
              instead of a string for one of it's parameters. The module
              can be used in conjunction with animate integer to read and
              visualize a ucd data set across time. By including every
              time step of ucd data at the nodes, animate integer can be
              connected to the integer parameter on this module to select
              and read each time step from memory in succession.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: New IAC member
Message-ID: <BzBpKn.MCK@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Tue, 15 Dec 1992 23:07:34 GMT

Hi Folks,

FYI, the IAC just brought on board a new member yesterday.
Here is a short biography:

Katie Mohrfeld is the newest member of the IAC staff.  She 
recently completed her masters in computer science at Brown University.
Prior to that she worked at the Univ. of North Carolina at Chapel Hill 
and at SAS Institute in Cary, N.C.

Please join us IACers in welcoming her aboard!  You can reach
her, and all of us, at avs@ncsc.org.

Thanks!

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------
****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfeld
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

617-890-4300       Advanced Visual Systems Inc. phone number.
		   Call here if you are interested in purchasing AVS.

617-890-8287	   AVS Inc.'s FAX Number

****************************************************************************
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From IFIPconf@uci.edu (IFIP WG 3.2 July 1993 Working Conference)
Subject: Visualization in Scientific Computing: Uses in University Education
Nntp-Posting-Host: hydra.acs.uci.edu
Message-ID: <2B2E7304.6872@news.service.uci.edu>
Newsgroups: comp.edu,sci.edu,misc.education,comp.graphics.visualization,comp.graphics.avs,comp.graphics.explorer
Organization: University of California, Irvine
Lines: 238
Date: 16 Dec 92 00:06:28 GMT
Followup-To: IFIPconf@uci.edu

Conference Announcement:

                         Working Conference on
      Visualization in Scientific Computing: Uses in University Education
                   to be held at University of California, Irvine
                        28-30 July 1993 (Wednesday-Friday)

Organized by the School of Engineering and the Office of Academic
Computing of the University of California, Irvine on behalf of IFIP
Working Group 3.2 (Computers in University Education)


Abstract:
   Computer Graphics and Scientific Visualization are an accepted
   part and essential tool in engineering and scientific research,
   but their incorporation into university education is still
   very much in the formative stage.  This conference will bring
   together key participants in the educational uses of scientific
   visualization in a range of disciplines (engineering, computer
   science, and computational sciences (chemistry, physics, biology,
   mathematics)) to share their experiences, to explore common
   problems and opportunities, and to identify promising directions
   for future work applicable in a range of disciplines.

Conference activities
---------------------
Outstanding invited speakers will present papers on the educational
uses of visualization in these disciplines, followed by one or more 
submitted papers, with group discussions of each set of presentations.
There will also be demonstrations and interactive use of materials 
described in the presentations and other relevant materials.

The issues to be addressed at the conference will include:

       -o- Examples of current and planned educational applications of
           Scientific Visualization.
       -o- Uses of Scientific Visualization in furthering the
           interaction and integration of university research
           and instructional activities.
       -o- Long term opportunities and difficulties for
           widespread educational use of Scientific Visualization.
       -o- Tools and methodologies for developing curricular
           materials incorporating scientific visualization.
       -o- Educational implications and exploitation of new 
	   technologies in multimedia, high-speed networking,
	   and computing.

Venue
-----
The conference venue is the University of California, Irvine (UCI).
One of nine campuses of the University of California system,
UCI is among the leading research universities in the United States.
Forty miles south of Los Angeles, five miles from the Pacific
Ocean and 5 minutes from Orange County Airport (with direct flights 
from such major hubs as Chicago, Dallas, and San Francisco), 
the campus's modern facilities are located amid coastal footlands 
featuring a natural arboretum planted with trees and shrubs from 
all over the world.

In timing and location, the working conference will be convenient for
those wishing to attend SIGGRAPH'93 or the (collocated) ACM Multimedia'93
Conference the following week in Anaheim, California, some 15 freeway
miles from UCI.  The local arrangements committee for this IFIP WG3.2
working conference will be happy to assist participants who wish to
take advantage of this multiple opportunity.

Program
-------
The program will start with a keynote address by Professor Troy Nagle,
President-elect of IEEE, on July 28, 1993, at 9:30 a.m.  There will
follow sessions in which invited speakers will present papers on the
educational uses of visualization in these disciplines, followed by one
or more submitted papers, with group discussions of each set of
presentations. There will also be demonstrations and interactive use of
materials. The working conference will adjourn at 3:30 p.m., Friday,
July 30.

There will be a welcoming reception for participants on the evening of
Tuesday, July 27.

Conference Proceedings
----------------------
The conference proceedings will be published by Elsevier Scientific
Publishers.

Participants
------------
As is usual with IFIP working Conferences, participation is by
invitation only.  The projected size of the conference is between
70 and 90 participants.  The organizers will ensure a fair
representation from different disciplines and different parts of the
world, with the cooperation of computer vendors in sponsoring this
broadly based attendance.

In addition to invited speakers, the list of invited participants
will include the following:
    1) Authors of original papers (of no more than 5,000 words)
       presented at the conference.  These papers will be selected on
       the basis of an extended abstract (of approximately 1,000 words)
       submitted by January 31, 1993.  The conference proceedings will
       be published by Elsevier Scientific Publishers.
    2) People with experience in the area of the working conference
       who request an invitation to participate.  This request should 
       include a brief (no more than 2 pages) resume with a statement 
       of interests relevant to the working conference.  It should be
       submitted by January 31, 1993.  The outline of such a request,
       suitable for e-mail submission, is enclosed.
On the basis of materials submitted by January 31, 1993, invitations for
participation and for paper submission will be sent out by February 28.
Final papers will be due by April 30 with authors notified of acceptance
by May 31 and camera ready copy due by June 31.

Registration fee
----------------
A registration fee of $150 will cover meals and materials distributed
at the working conference.  Participants are expected to find funding
for travel and living expenses.  The Organizing Committee is prepared
to offer assistance in these areas.

Correspondence
--------------
Please address correspondence regarding the conference to
    IFIPconf@uci.edu
or by post to the following address:
    C.R. Murphy
    IFIP WG3.2 Working Conference
    Dept. Electrical & Computer Engineering
    University of California
    Irvine, California  92717   USA
Phone: +1 714 856-4821; Fax: +1 714 725-3203.
Electronic correspondence whenever feasible is prefered.

Program Committee
-----------------
In addition to the formal submission of materials as described above,
the Program Committee is eager to receive any suggestions, questions,
or comments regarding this working conference. 

    Alfred Bork        University of California, Irvine
    Gordon Davies      Open University, Milton Keynes, UK
    Jose Encarnacao    Technical University of Darmstadt, Germany
    Leonard Ferrari    University of California, Irvine
    Stephen Franklin   University of California, Irvine
    John Hughes        University of Technology, Sydney, Australia
    Bernard Levrat     University of Geneva, Switzerland
    G. Scott Owen      Georgia State University
    Allen Stubberud    University of California, Irvine
    Harry Tan          University of California, Irvine
    Tom van Weert      University of Nijmegen, The Netherlands
    John Werth         University of Texas at Austin

What is IFIP?
-------------
The International Federation for Information Processing (IFIP) is a
multinational federation of professional and technical organizations
concerned with information processing. IFIP was founded in 1960 under
the auspices of UNESCO. IFIP is dedicated to improving worldwide
comunication and increased understanding among practitioners of all
nations about the role information processing can play in all walks of
life. Members of IFIP are national organizations in the field of
information processing.

Technical work, which is at the heart of IFIP's activity, is managed by
a series of Technical Comittees (TC). Each Technical Committee is
composed of representatives of IFIP Member organizations. Technical
Committee 3 is on Education.  Under each Technical Committee there
operate Working Groups. These consist of specialists who are
individually appointed by their peers independent of nationality.
Working Group 3.2 (WG 3.2) is one such group with as its focus
University Education.

IFIP Working Group 3.2, Computers in University Education
---------------------------------------------------------
WG 3.2 is chartered to "provide guidance on the adequate informatics
component needed in the curricula of all disciplines making significant
use of informatics." This working conference is one of a series WG 3.2
has organized on curricula including one at Brown University
(Providence, R.I.) in April 1990 and another at Swiss Federal Institute
of Technology (ETH), Zurich, in October 1991.  Proceedings of both these
working conferences were published as special issues of the journal
"Education & Computing" published by Elsevier Scientific Publishers.


------------------------------------------------------------------------
Statement of Interest in Participating in the Working Conference on
Visualization in Scientific Computing: Uses in University Education
to be held at University of California Irvine, 28-30 July 1993.

Organized by the School of Engineering and the Office of Academic Computing
of the University of California at Irvine on behalf of 
    IFIP Working Group 3.2 (Computers in University Education)


Name:____________________________________________________

Organization: ___________________________________________

Address: ________________________________________________

	 ________________________________________________

	 ________________________________________________

	 ________________________________________________

E-mail address: _________________________________________

Phone: ______________________  FAX: _____________________


Special arrangements are being made to assure an adequate supply
of convenient, attractive, reasonably priced accomodations.
To assist the local arrangements committee in this effort,
please indicate the period for which you will want such lodging
and how many people will be in your party.

  Period of Lodging:

  Number of People:


Professional background and description of interests relevant
to this working conference.  (Approximately one page please.)


If you are interested in demonstrating materials (whether "work in 
progress" or available for distribution), please provide an abstract
of approximately 500 words (including references as appropriate).



If you are interested in presenting a paper, please provide
an extended abstract of approximately 1,000 words (including
references as appropriate).

------------------------------------------------------------------------
--
IFIP WG 3.2 1993 Working Conference Program Committee


From schiano@vega.acs.uci.edu (Allen V. Schiano)
Subject: read image Endian questions
Nntp-Posting-Host: vega.acs.uci.edu
Message-ID: <2B2E7F6D.8114@news.service.uci.edu>
Newsgroups: comp.graphics.avs
Reply-To: schiano@vega.acs.uci.edu (Allen V. Schiano)
Organization: University of California, Irvine
Keywords: read image module, Endians
Lines: 33
Date: 16 Dec 92 00:59:26 GMT

	Given that we have been having a lot of fun with this recently,
I thought it would be a good time to ask the AVS community and AVS designers
about how AVS reads images, i.e., *.x files.

	We've noticed that on our DEC 5200s running AVS, that the
form of the various .x files in /usr/avs/data/image are often different.
In particular, the digital.x and the avs.x, seem to have their
bytes flipped in terms of the width (or nx) and height (ny) of
the picture.  Since these are the only pieces of information
in the images that specify the image size (no XDR type stuff in the file
like with a field), we're guessing that when the read image module
or the image viewer reads this file it tries to make some
sense of these numbers.  If they are wierd (like negative or large) it
tries to flip the Endian of ALL the values in the dataset (including
the data that defines the alpha, R, G, B of the image).

Is this true?  We found this out when we tried to write X apps
that read in AVS image files.  Some seem to work fine but others died
because they were not flipping the Endian.  We assumed that all the .x files
were the same type.  Forgive us!

You can see this quite easily by using the 'od' command on a couple of
these files (like digital.x and avs.x).

Allen V. R. Schiano
Advanced Scientific Computing
Office of Academic Computing
University of California, Irvine
Irvine, Ca 92727
schiano@uci.edu





From bosch@rz.uni-karlsruhe.de (Gerhard Bosch)
Newsgroups: comp.graphics.avs
Subject: To whom it may concern:
Date: 18 Dec 1992 10:57:14 GMT
Organization: University of Karlsruhe, Germany
Lines: 17
Distribution: world
Message-ID: <1gsaqaINN7vs@nz12.rz.uni-karlsruhe.de>
NNTP-Posting-Host: ifh-hp2.bau-verm.uni-karlsruhe.de

Regarding my postings to the newsgroup about Kubota Pacific
Computer (KPC), I would like to make some clarifications. Since
January 1991, KPC has had its European sales and customer support
operation in Cologne Germany ( tel: +49 221-252-052, CS email:
Support_Europe@kpc.com). The head of the Customer Support
operations in Europe is Mr Gunter Born. KPC's operation in Europe
has suppported the 120 system TITAN customer base since the 
dissolution of Stardent in December of 1991. It has been my own
decision not to purchase service from Kubota either on a contract or
on time-and-materials basis. Mr Born then refused to provide me
free service for a problem which recently occured on my system.
This impasse produced some heated words from me about KPC in my
newsgroup postings. The readers of the newsgroup should know that
my words and opinions are my own and not reflecting of the opinions
of the University of Karlsruhe.

Sincerely, Gerhard Bosch


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Please submit your modules
Message-ID: <BzGvFr.Gno@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Fri, 18 Dec 1992 18:02:14 GMT

Hi Folks,

Before you all run off for a holiday vacation, please take
a few minutes out to submit your modules to the IAC.  Our
quarterly contest submission deadline is December 31st ....

Thanks!

-Steve

----------------------------------------------------------------
CONTEST!!!   CONTEST!!!    CONTEST!!!   CONTEST!!!    CONTEST!!!
----------------------------------------------------------------

The International AVS Center's module repository 
has been very successful in its first year.  There 
are now over 600 public domain AVS modules available 
for your scientific visualizatition use!  Thanks to 
all who have so generously shared their work!

To encourage continued submissions, and as a reward
for the modules already contributed, the IAC is
implementing a quarterly contest.  The author of the
"best" module contributed in a quarter will receive
his/her choice of $250 cash (U.S. funds), or $250 
credit towards attendance at AVS '93 ( to be held
May 24-26 in Orlando, Florida ).  Some of the criteria 
considered in a module's evaluation include the module's: 

	1)  Utility 
	2)  Uniqueness
	3)  Popularity 

These are not necessarily all inclusive or in any 
particular order.  The final decision as to who wins
the award will be made by the IAC.

The contest will be for three quarters, October 1, 1992 until
December 31, 1992, January 1, 1993 until March 31, 1993 and
lastly, April 1, 1993 until the AVS '93 conference on May 24, 1993.
Submissions for each quarter must be received before midnight on
the final day (EST).

We have selected a lucky winner for the time preceeding Oct 1, 1992.
For his many module contributions and their usefulness to the AVS community
according to our download statistics, we have selected Wes Bethel
from Lawrence Berkeley Laboratories.  We did not want the donations
for the first year to go unrewarded.  Thanks from the IAC and all 
the AVS User community for your more than many module contributions, 
including the following and more:

	animate_floa
	animate_inte
	animated_str
	plot_xyz
	plot_xyz_col
	read_irregul
	read_uniform
	add_coords_2
	add_coords_3
	add_cps
	byte_image_t
	float_image
	collage
	xform_field
	irreg_2_reg
	new_crop
	persp_field
	vec_mag_2d_v
	new_arbitrar
	bivar
	field_to_con
	scat_2d
	scat_3d
	dump_sunras
	dump_icc
	dump_ps
	image_2_icc
	output_color
	output_8bit
	write_irreg
	write_reg
	hsv_to_rgb
	rgb_to_hsv
	bin_field
	psfilter
	trivar
	LBL_bezier_v
	new_ortho_sl
	write_compressed
	read_compressed
	3D_axis

IAC and MCNC staff and their families are not eligible for the
contest.  Employees and their families from Advanced Visual
Systems, Inc are also not eligible for the contest.  All other
entries will be equally considered.  We are a non-profit organization.

Have fun coding, and thanks again for an extremely
successful first year!


International AVS Center Contact Info:
-------------------------------------
International AVS Center
North Carolina Supercomputing Center
3021 Cornwallis Road
Research Triangle Park, NC 27709

Please send AVS related articles for the AVS Network News magazine.

avs93@ncsc.org	   email for here information on The 2nd Annual 
		   International AVS User's Group Conference, to be 
		   held May 24-26, 1993 outside of Orlando, Florida

avs@ncsc.org	   email questions to IAC staff here

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest IAC readme

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
(128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number


From cammejpm@camme.ac.be (J.-P. Malisse CAMME project)
Newsgroups: news.announce.newgroups,news.groups,comp.sys.super,comp.lang.perl,comp.graphics.avs,comp.lang.fortran,comp.unix.bsd,comp.unix.misc,sci.physics,sci.geo.fluids,sci.geo.meteorology
Subject: RESULT: comp.sys.convex passes 292:7
Followup-To: news.groups
Date: 18 Dec 1992 20:59:39 -0500
Organization: MUMM, Brussels
Lines: 359
Sender: tale@news.UU.NET
Approved: tale@uunet.uu.net
Distribution: inet
Message-ID: <1gtvmbINN43c@news.UU.NET>
NNTP-Posting-Host: news.uu.net
Keywords: convex, newsgroup, votes, supercomputer, vector

At the end of the voting period (23:59 pm, December 17, 1992),
299 people had sent in their ballots in response to the CFV.

The proposal passed with a broad margin : 292 YES and 7 NO votes
were cast. 
this represents 97.7 % of YES votes 
                 2.3 % of NO  votes
The criteria for the creation of the comp.sys.convex newsgroup
are then fullfilled we have more than 2/3 YES votes and 
285 YES (> 100) votes more than NO votes.

As usual there will be a five day waiting period before the group
comes to existence. It might also take some day more before the
gateway with the user mailing list will be set up, Karen Birchelbach
is alledgedly collecting information to make it work. 
The newyear holidays would maybe slow down lightly the process.

Newgroup control message(s) will be sent out by David Lawrence, 
the moderator of news.announce.newgroups, after the 5-day waiting
period.  [[ The actual newgroup creation message will not go out
until 6 January, accounting for the Christmas and New Year holidays.
-- David ]]

I would like to express my gratitude to each and every one of you
whose participation has made this CFV a tremendous success 

THANK *YOU*  ALL *<:-) 

       *
      i**      and I wish *you* a Merry Christmas and an Happy New Year
     ****i    
    *i**i**    and a long life to the 'comp.sys.convex' newsgroup 
       |
      [_]

  Sincerely,
  Jean-Pierre Malisse (cammejpm@camme.ac.be)

Voter number      : 299

Number of Yes votes: 292/299
Number of No  votes: 7/299

The tally...

The duplicate votes (last vote retained)
tom_limoncelli@Warren.MENTORG.COM      Tom Limoncelli       
beckmkai@clio.rz.uni-duesseldorf.de    Kai Beckmann         
stankerr@uiuc.edu                                           
as@info.ucl.ac.be     Alain Silovy                          
as@info.ucl.ac.be     Alain Silovy                          
crtb@helix.nih.gov    Chuck Bacon                           

No Voters list

crtb@helix.nih.gov                    Chuck Bacon             10 Dec
dem@scripps.edu                       Duncan McRee            10 Dec
ejo@kaja.gi.alaska.edu                                        25 Nov
hjw@c3serve.c3.lanl.gov               Harvey Wasserman        24 Nov
rick@CRICK.SSCTR.BCM.TMC.EDU          Richard H. Miller       23 Nov
shair@barolo.cso.uiuc.edu             Bob Shair               24 Nov
zooid!smarry@mcsun.uucp               Marc Moorcroft          25 Nov

Yes Voters list

A.AGNEW@qut.edu.au
A.G.P.Pronk@research.ptt.nl
A.SMITH@qut.edu.au                    Tony Smith - QUT Compu
B.WHITAKER@qut.edu.au
CZIS303@VMSFE.ULCC.AC.UK              Bob Vickers
EEKHOF@UTWENTE.NL
HAIDER@EMAIL.TUWIEN.AC.at             Walter Haider           4 Dec 
Helmold@tu-harburg.dbp.de             Annette Helmold         9 Dec 
J.W.Schilperoort@research.ptt.nl      Sjaak Schilperoort
J.ZAWKO@qut.edu.au
J.vanderReijden@research.ptt.nl       Jeroen vd Reijden
Jarmo.Ahonen@sisu.lut.fi              Jarmo Ahonen            24 Nov
Junglas@tu-harburg.dbp.de             Peter Junglas           1 Dec 
KW010SU@DACTH11.bitnet                Sutter                  02 Dec
Kabelitz@tu-harburg.dbp.de            Juergen Kabelitz        25 Nov
M.E.Koren@research.ptt.nl
MJQUINN@PUCC.bitnet                   Michael Quinn           23 Nov
MOORERR@MSU.bitnet
Mark.Martinec@IJS.si                                          16 Dec
Martens@tu-harburg.dbp.de             Klaus Martens           26 Nov
Matej.C.Wedam@IJS.si                                          16 Dec
NELSON@MSU.bitnet
POSTMASTER@dlgm.dl.ac.uk                                      24 Nov
Patrick.Laporte@cerfacs.fr                                    24 Nov
Schlichting@tu-harburg.dbp.de         Thorsten Schlichting    15 Dec
Schoessler@tu-harburg.dbp.de          Manfred Schoessler      2 Dec 
Tessmann@tu-harburg.dbp.de            Ingo Tessmann           26 Nov
UBCG08C@CCS.BBK.AC.UK
W.FISHER@qut.edu.au                   Bill Fisher
Wierse@rus.uni-stuttgart.de           Andreas Wierse          26 Nov
acp@pruxp.att.com                                             24 Nov
ad@dmicvx.dmi.min.dk                  Adam Dybbroe            26 Nov
adrian@cc.ruu.nl                                              27 Nov
akke@scripps.edu                      Mikael Akke             11 Dec
alex@espcvx.convex.es                                         16 Dec
alfred@titan.mathematik.uni-freiburg. Alfred Schmidt          24 Nov
altfahrt@ecx.tuwien.ac.at             Werner ALTFAHRT         4 Dec 
amir@discus.technion.ac.il            Amir Plivatsky          30 Nov
andras@concave.cs.wits.ac.za          Andras Salamon          25 Nov
angel@hobbit.quimica.uniovi.es        Angel Martin Pendas
arevalo@scripps.edu                   Jairo Arevalo           24 Nov
arvai@scripps.edu                     Andy Arvai              10 Dec
as@info.ucl.ac.be                     Alain Silovy            16 Dec
asl0201@pluto.ulcc.ac.uk              Prof MA Robb            24 Nov
beckmkai@clio.rz.uni-duesseldorf.de   Kai Beckmann            26 Nov
bek@dmicvx.dmi.min.dk                 Bernd Kuemmel           27 Nov
benavide@natasha.convex.com           John Benavides          29 Nov
bob@oxford.ac.uk                      Bob Douglas             16 Dec
bogstad@blaze.cs.jhu.edu              Bill Bogstad            23 Nov
brooks@csd4.csd.uwm.edu                                       27 Nov
bruce@umdsun2.umd.umich.edu           bruce elenbogen         17 Dec
bushfly@convex.cl.msu.edu             guy bush                17 Dec
but@UniBw-Hamburg.DE                  Lothar Butsch           27 Nov
bvd@ccsun2.cc.adfa.oz.au              Brian Denehy            11 Dec
bwolfe@starman.convex.com             Bruce Wolfe             24 Nov
cammejpm@camme.ac.be                  Jean-Pierre Malisse     17 Dec
cammess@camme.ac.be                   Serge Scory             26 Nov
cary@scripps.edu                      Steve Cary              10 Dec
case@scripps.edu                      David Case              10 Dec
chakrava@egr.msu.edu                                          17 Dec
charles@convex.oxford.ac.uk           Charles Curran          24 Nov
chisco@sis.ucm.es                     Manuel Hernandez Urrea  16 Dec
chris@cs.uchicago.edu                 Chris Johnston          10 Dec
chrisg@woozle.mel.dbe.CSIRO.AU        Chris Green             25 Nov
colin@helios.iihe.rtt.be              Michel Colin            3 Dec 
corinne@rubens.uucp                   Corinne Cerf            27 Nov
craven@cg.emr.ca                      Jim Craven              24 Nov
crs@crs.cl.msu.edu                    Charles Severance       17 Dec
daniel@lternet.washington.edu         Daniel Pommert          30 Nov
dasting@ze8.rz.uni-duesseldorf.de                             26 Nov
dave@csd4.csd.uwm.edu                 David A Rasmussen       27 Nov
davem@ncsa.uiuc.edu                   David McWilliams        24 Nov
dbrenner@mikey.convex.com             Daniel Brenner          24 Nov
detlev.mueller@gate1.bgr.dbp.de       Detlev Mueller          14 Dec
djohnson@audrey.amgen.com                                     24 Nov
dmaes@ulb.ac.be                       Maes D.                 25 Nov
dov@menora.weizmann.ac.il             Dov Grobgeld            24 Nov
dregger@convex.rz.uni-duesseldorf.de  Elisabeth Dregger-Capp  25 Nov
dvs@ze8.rz.uni-duesseldorf.de         Wolfgang R. Mueller     1 Dec 
dwallach@zonker.cs.berkeley.edu       Dan Wallach             25 Nov
ek@dmicvx.dmi.min.dk                  Eigil Kaas              26 Nov
ekrausse@AWI-Bremerhaven.DE           Elke Krausse            24 Nov
eliu@math.msu.edu                     E. Liu                  17 Dec
elsen@imec.be                                                 24 Nov
emcguire@intellection.com             Ed McGuire              24 Nov
enbody@cps.msu.edu                                            17 Dec
erchul@csd4.csd.uwm.edu               David A. V. Erchul      1 Dec 
erk@dmicvx.dmi.min.dk                 Erland Kallen           26 Nov
eugene@nas.nasa.gov                   Eugene N. Miya          23 Nov
evansj@crs.cl.msu.edu                 Jeffrey Evans           17 Dec
ferna1@sis.ucm.es                                             16 Dec
fisher@scripps.edu                    Cindy Fisher            24 Nov
folkes@dhostwo.convex.com             Ron Folkes              24 Nov
forker@convex.rz.uni-duesseldorf.de   Harry Forker            26 Nov
forsyth@cps.msu.edu                                           17 Dec
franklin@geneva.acs.uci.edu                                   12 Dec
frederik@pollux.acs.uci.edu                                   24 Nov
fvance@wg.waii.com                    Frank Vance             24 Nov
galway@chtm.eece.unm.edu              Denis McKeon            24 Nov
garrett@scripps.edu                   Garrett M. Morris       10 Dec
gharvey@trojan.convex.com             George Harvey           24 Nov
gisler@sstcx1.lanl.gov                Galen Gisler            25 Nov
gmc@helix.nih.gov                                             7 Dec 
goodgulf@mato.lut.fi                  Hannu Martikka          24 Nov
gustavo@cica.es                       Gustavo Sanchez Gomez   12 Dec
hakuline@csc.fi                       Erkki Hakulinen         24 Nov
hamilton@cnvxla.convex.com            Ken Hamilton            10 Dec
hammond@trout.nosc.mil                John Hammond            24 Nov
hans@ub4b.uucp                        Hans Baele              16 Dec
harper@csc.fi                         Rob Harper              24 Nov
harrisot@cps.msu.edu                                          17 Dec
hasty@scofflaw.convex.com             Robert Hasty            25 Nov
henrich@crh.cl.msu.edu                Charles Henrich         17 Dec
herbison@erlang.enet.dec.com          B.J.  25-Nov-1992 0929  25 Nov
hideaki@crayamid.cray.com             Hideaki Moriyama        24 Nov
hinkle@ux1.cso.uiuc.edu               Steven Hinkle           24 Nov
hndrcksn@convex.cl.msu.edu            kevin a. hendrickson    17 Dec
hosking@osf.org                                               24 Nov
hsmith@imagine.convex.com             Henry Smith             24 Nov
hz209ro@duc220.uni-duisburg.de        Roestel                 9 Dec 
i6040504@ws.rz.tu-bs.de               Holthoff                24 Nov
ignasiak@netsun.cl.msu.edu            Todd Ignasiak           17 Dec
iris2!helmut@IBM.rhrz.uni-bonn.de      Helmut Biesenbach      24 Nov
jab@dmicvx.dmi.min.dk                 Jacob Baekke-Groome     27 Nov
jallen@mikey.convex.com               Jeff Allen              24 Nov
jans@rhein.iam.uni-bonn.de               Soenke Jans          27 Nov
jd@helix.nih.gov                      John Dickson            24 Nov
jean@rubens.uucp                      Jean Richelle           26 Nov
jerrymc@convex.cl.msu.edu             Jerry McAllister        24 Nov
jf@cxa.daresbury.ac.uk                                        16 Dec
jgd@csd4.csd.uwm.edu                  John G Dobnick          30 Nov
jgodsil@ncsa.uiuc.edu                 Joseph Godsil           24 Nov
jhaataja@csc.fi                       Juha Haataja            25 Nov
jharmatz@Jade.Tufts.EDU                                       30 Nov
jhs@dmicvx.dmi.min.dk                 Jens Havskov Sorensen   26 Nov
jjohnson@muse.convex.com              Jennifer L. Johnson     25 Nov
jmc@cnd.hp.com                        Jerry McCollom          24 Nov
jme@leicvx.labein.es                  Jose Manuel Escajedo O  16 Dec
jonesm@ksc.com                        Sheldon Jones           11 Dec
jsblau@panix.com                      Jonathan Blau           24 Nov
jth@ll.mit.edu                        Joe Healey              24 Nov
jwa@yog-sothoth.dcrt.nih.gov          James W. Adams          30 Nov
kaas@cc.ruu.nl                                                11 Dec
karen@guinan.space.swri.edu           Karen Birkelbach        24 Nov
khb@Eng.Sun.COM                       Keith Bierman fpgoup    23 Nov
kim@bbl.be                            Marc Kimpe              27 Nov
kkoski@finsun.csc.fi                  Kimmo Koski             24 Nov
kreidler@convex.rz.uni-duesseldorf.de Homer Simpson           27 Nov
krej@electrum.kth.se                  Kristian Ejvind         24 Nov
krickl@convex.rz.uni-duesseldorf.de   Norbert Krickl          11 Dec
krone@sstcx1.lanl.gov                 Jim Krone               24 Nov
kumar@cvax.psi.ch                     sreekumar               25 Nov
kunicke                                                       14 Dec
kupec@agouron.com                     John W. Kupec           24 Nov
lassini@egr.msu.edu                                           17 Dec
lbell@sun.geosig.sccsi.com            Lee Bell                11 Dec
lebay@mercury.cl.msu.edu              Jim LeBay               17 Dec
lebherz@fconvx.ncifcrf.gov            Bob Lebherz             24 Nov
lemek@cps.msu.edu                                             17 Dec
levie@dutiws.TWI.TUDelft.NL           M.Levie.TA-tel-7230     25 Nov
lindsey@hydra.convex.com              Norman Lindsey          24 Nov
linneman@rulcvx.LeidenUniv.nl         Stefan Linnemann        26 Nov
linth@mozart.convex.com               Tony Linthicum          24 Nov
little@carina.hks.com                 Jim Littlefield         24 Nov
lou@scripps.edu                       Lou Noodleman           25 Nov
ls@dmicvx.dmi.min.dk                  Lennart Sorth           26 Nov
lucag@c220.unimo.it                   Luca Gentili            27 Nov
mahonen@koralli.funet.fi              Manu Mahonen FUNET      24 Nov
maier@ecx.tuwien.ac.at                Dr. Peter MAIER         15 Dec
maite@cica.es                         MAITE SIERRA MACIA      24 Nov
makila@finsun.csc.fi                                          24 Nov
mark@sun.geosig.sccsi.com             Mark Czigan             15 Dec
martens@cis.ohio-state.edu            Jeff Martens            23 Nov
masjol@dou.ou.dk                                              11 Dec
masson@Solbourne.COM                  Bob Masson              24 Nov
mastkr@camme.ac.be                    Kevin Ruddick           25 Nov
mastpl@camme.ac.be                    Patrick Luyten          17 Dec
masttdm@camme.ac.be                   Tom de Mulder           14 Dec
mbrown@eugene.convex.com              Mark Brown              24 Nov
mccalpin@perelandra.cms.udel.edu                              24 Nov
mederer@GSF.DE                        Reimund Mederer         30 Nov
meidinge@GSF.DE                       Thomas Meidinger        24 Nov
michael@scripps.edu                   Michael Denisevich      24 Nov
michlu@rubens.uucp                    Michel Luhmer           30 Nov
mila@espcvx.mopu.es                   Milagros Huerta         16 Dec
milind@ndcvx.cc.nd.edu                Milind Saraph           24 Nov
mlce@csn.es                           Maria Luisa de la Cruz  16 Dec
mousseau@convex.cl.msu.edu            normand mousseau        17 Dec
mpluczak@cbda9.apgea.army.mil         Mary P. Luczak          25 Nov
much@UniBw-Hamburg.DE                 Reiner Muchow           17 Dec
muir@cogsci.Berkeley.EDU              David Muir Sharnoff     28 Nov
mummjb@camme.ac.be                    Johan Bakers            9 Dec 
nancy@scripps.edu                     Nancy Evans             10 Dec
nathalie@rubens.uucp                  Nathalie Boutonnet      3 Dec 
naveda@bohemia.cs.uofs.edu            Fernando Naveda         17 Dec
nieprask@convex.ifh.de                Waltraut Niepraschk     11 Dec
nondas@iai.kfk.de                     Nondas Kapetanios       25 Nov
ocean@dmicvx.dmi.min.dk               oceangroup              27 Nov
ooms@delft.sgp.slb.com                Frank Ooms              24 Nov
oreilly@scripps.edu                                           10 Dec
oved@convex.technion.ac.il            Oved Ben-Aroya          30 Nov
pat@jaameri.gsfc.nasa.gov             patrick m. ryan         24 Nov
paul@rox.mel.dbe.csiro.au             Paul Davis              11 Dec
pbarr@mikey.convex.com                                        24 Nov
pcl@oxford.ac.uk                      Paul Leyland            16 Dec
pehl@dkrz-hamburg.dbp.de              Annette Pehl
petelev@imagine.convex.com            Pete Levinthal          25 Nov
peter@cc.ruu.nl                                               30 Nov
peters@dkrz-hamburg.dbp.de            Heino Peters            30 Nov
phiggins@crux.acs.uci.edu             Paul Higgins            23 Nov
phil@scripps.edu                      Phil Cohen              14 Dec
pjordan@rp.csiro.au                   Patrick Jordan          9 Dec 
plecomte@rc1.vub.ac.be                Lecomte Philippe        1 Dec 
pml@bbl.be                            Paul Malisse            26 Nov
pope@cps.msu.edu                                              17 Dec
postman@GSF.DE                        Markus Brylski          30 Nov
postmaster@tu-harburg.dbp.de                                  27 Nov
pp@info.ucl.ac.be                     Philippe Pirlot         16 Dec
ptb@ptb.cl.msu.edu                    Paul T. Barczak         17 Dec
ra@gfz-potsdam.dbp.de                                         11 Dec
rahola@finsun.csc.fi                  Jussi Rahola            24 Nov
ralph@idefix.laas.fr                                          29 Nov
rccsjva@dutrex.tudelft.nl             Jana Vasiljev           10 Dec
rcpsewi@dutrex.tudelft.nl             Eric Winkel             11 Dec
recbjorn@aauc32.uni-c.dk              Bjorn Reynisson         25 Nov
recnh@aauc32.uni-c.dk                 Niels Carl Hansen       11 Dec
redding@cps.msu.edu                                           17 Dec
rich@samson.cc.nd.edu                 Rich Sudlow             25 Nov
richardh@pixel.convex.com             Richard Hargrove        24 Nov
richsun!tjohnson@mcsun.uucp           Tom K. Johnson          25 Nov
rick@helix.nih.gov                    Rick Troxel             6 Dec 
roland@rubens.uucp                    Roland Gordon-Beresfor  26 Nov
root@dnlunx.research.ptt.nl           System PRIVILEGED Acco
root@sunny.EDVZ.Uni-Linz.AC.at        Operator                14 Dec
rosenbau@convex.rz.uni-duesseldorf.de Rosenbaum               13 Dec
rowan@mozart.convex.com               Steve Rowan             17 Dec
rwittick@msu.edu                      Bob Wittick             17 Dec
sainio@luna.csc.fi                    Asko Sainio             14 Dec
salazar@sstcx1.lanl.gov               Anthony Salazar         11 Dec
sbs@finsun.csc.fi                     Sami Saarinen           24 Nov
schlepuetz@cvax.psi.ch                Fritz Schlepuetz        11 Dec
schott@ze8.rz.uni-duesseldorf.de                              2 Dec 
sebas@espcvx.mopu.es                  Sebastian Espinar Cerr  16 Dec
sfb256!rainer@IBM.rhrz.uni-bonn.de     Rainer Kleinrensing    24 Nov
sfb256!ratte@IBM.rhrz.uni-bonn.de       Cordula Reineke       24 Nov
sfb256!volker@IBM.rhrz.uni-bonn.de     Volker A. Brandt       24 Nov
sidney@maize.qut.edu.au               Mr Sidney James DUFFY   25 Nov
sigut@rzvax.ethz.ch                                           11 Dec
spray@trojan.convex.com               Rob Spray               24 Nov
stahl@dkrz-hamburg.dbp.de             Wolfgang Stahl
stankerr@uiuc.edu                                             11 Dec
steger@clio.rz.uni-duesseldorf.de     Dr. G. Steger           27 Nov
stgprao@st.unocal.com                 Richard Ottolini        23 Nov
suchen@scripps.edu                    Su Chen                 25 Nov
sylvaine@lccp.ibs.fr                  Sylvaine ROY            16 Dec
tchrist@pixel.convex.com              Tom Christiansen        25 Nov
tdd@luke.cl.msu.edu                   Tom Davis               17 Dec
tesuito@afterlife.ncsc.mil            Terry Suitor            4 Dec 
thchemb4@convex.oxford.ac.uk          Tom Weston              16 Dec
thfrueha@igd.fhg.de                                           11 Dec
thomas@titan.mathematik.uni-freiburg. Thomas Mackeben         26 Nov
thorpe@ncsc.org                       Steve Thorpe            30 Nov
todd@cougarxp.Princeton.EDU                                   24 Nov
tom_limoncelli@Warren.MENTORG.COM     Tom Limoncelli          24 Nov
torabi@navajo.rc.arizona.edu          Mohammad Torabi         24 Nov
tpaquett@ita.lgc.com                  Trevor Paquette         24 Nov
turbo@cse.uta.edu                     Chris Turbeville        24 Nov
u89rhc@ecs.oxford.ac.uk                                       16 Dec
ukkonen@csc.fi                        Jukka Ukkonen           24 Nov
usadi@spacsun.rice.edu                Adam K. Usadi           24 Nov
vankemme@imec.be                                              25 Nov
verbund@ze8.rz.uni-duesseldorf.de     Angelika Kottwitz       26 Nov
victor@hobbit.quimica.uniovi.es       Victor Luana Cabal
wallin@risrms1.risoe.dk
watson@zeppelin.convex.com            Tom Watson              24 Nov
wavesvde@camme.ac.be                  Dries van den Eynde     16 Dec
wayne@concave.cs.wits.ac.za           Wayne Smith             25 Nov
wbahvdz@dutrex.tudelft.nl                                     10 Dec
weeks@mozart.convex.com               Dennis Weeks            24 Nov
weger@fstgds01.tu-graz.ac.at                                  16 Dec
weintrau@convex.cl.msu.edu            Jason Weintraub         17 Dec
wiedeman@altair.acs.uci.edu           Lyle Wiedeman           23 Nov
willard@hvsun1.mdc.com                David Willard           10 Dec
wood@cps.msu.edu                      Wood Robert B           17 Dec
xrkch@jmh.gsfc.nasa.gov                                       25 Nov
xxss517@hermes.chpc.utexas.edu        Bruce Whittington       24 Nov
xzou@math.msu.edu                     Xiulin Zou              17 Dec
yangwang@convex.cl.msu.edu            yang wang               17 Dec
yeksiezy@cyf-kr.edu.pl                Marek Ksiezyk           9 Dec 
young@wheat.qut.edu.au                Joseph Young            25 Nov
yuri@amath.washington.edu             Yuri Yulaev             24 Nov
zrsuk01@convex.zdv.uni-tuebingen.de   U. Koch                 26 Nov

End of Voter List


From blshyu@nctu.edu.tw ()
Subject: Help with Synchronization
Message-ID: <1992Dec20.054705.8951@ccnews.nctu.edu.tw>
Sender: usenet@ccnews.nctu.edu.tw
Organization: National Chiao Tung University
X-Newsreader: TIN [version 1.1 PL6]
Date: Sun, 20 Dec 1992 05:47:05 GMT
Lines: 35


Dear Netter:

  I met a problem in using AVS to generate a series of images and I am 
looking for your help. What I want to do is to read in a series of fields,
calculate their isosurfaces, render the isosurfaces, write them to a 
series of image files. My network is as below:

                                 boolean
                                    |
			 ----------------------
			|                      |
			|                animate_file
	                |                      |
			|                 read_field
			|                      |
	           animate_file           iso_surface
			|                      |
			|               render_geometry
			|                      |
			 ---------    --------- 
			          |  |
                               write_image

  The "write_image" module needs two inputs from the two branches of
the network indevudually.  Since the right branche of the network
needs more time to complete the calculation than the left branch, I
need a method to do the synchronization of the two branch or I can have
many images saved with different names but with the same content.
Do you know how to synchronize them? Please help me.

-------------------------------------------------------------------------
Bor-Lin Shyu                         <blshyu@cc.nctu.edu.tw>
National Chiao Tung University



From wes@ux6.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.avs
Subject: Re: Help with Synchronization
Message-ID: <1h50kuINNejm@overload.lbl.gov>
Date: 21 Dec 92 17:58:54 GMT
References: <1992Dec20.054705.8951@ccnews.nctu.edu.tw+
Reply-To: wes@ux6.lbl.gov (Wes Bethel)
Organization: Lawrence Berkeley Laboratory
Lines: 57
NNTP-Posting-Host: ux6.lbl.gov

In article <1992Dec20.054705.8951@ccnews.nctu.edu.tw+ blshyu@nctu.edu.tw () writes:
+...
+                                 boolean
+                                    |
+			 ----------------------
+			|                      |
+			|                animate_file
+	                |                      |
+			|                 read_field
+			|                      |
+	           animate_file           iso_surface
+			|                      |
+			|               render_geometry
+			|                      |
+			 ---------    --------- 
+			          |  |
+                               write_image
+
+  The "write_image" module needs two inputs from the two branches of
+the network indevudually.  Since the right branche of the network
+needs more time to complete the calculation than the left branch, I
+need a method to do the synchronization of the two branch or I can have
+many images saved with different names but with the same content.

(sorry for including so much of the original article - it was unavoidable)

Back when I was in school, the EE's would use a T-flop (trigger
flip-flop) to solve this problem. At the IAC is a module called
"shutter" which provides the functionality that you need. 

It takes as input an image, and when a "true" signal is applied to
it's "fire" parameter, it sends the input image to its output port.

So, your modified network would look like:

+                                 boolean
+                                    |
+			 ----------------------
+			|           |          |
+			|           |    animate_file
+	                |           |          |
+			|           |     read_field
+			|           |          |
+	           animate_file     |     iso_surface
+			|           |          |
+			|           |   render_geometry
+			|           |          |
+			 ---------  | --------- 
+			          | ||
+			          | shutter
+			          |  |
+                               write_image
+

Happy holidays!

wes


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: HP SDSC Image Tools
Message-ID: <BzMr27.LqE@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 21 Dec 1992 22:13:19 GMT

Hi Folks,

The ever popular AVS modules based on the San Diego Supercomputing
Center's image conversion tools, and converted into AVS by Terry Myerson,
are now available on the HP platform!  With SDSC's latest release of 
the tools, they have released an HP port.

Two of the approximately 60 AVS modules based on the SDSC tools are
READ_ANY_IMAGE and WRITE_ANY_IMAGE.  These are in the top 3 most 
frequently downloaded modules on the ftp site.  Because they are so
popular, executable versions as well as source code are provided for
your use.

I'll include a copy of their documentation below.  Enjoy!

-Steve

Name        : READ_ANY_IMAGE  Version      : 2.000     Mod Number : 1211 
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 05/21/92        Last Updated : 12/21/92  Language   : C        
Ported to   : Sun DEC IBM HP
Description : This module reads an image into an AVS Network in a variety of
              formats. All formats which the San Diego Supercomputing
              Center's image tools support, this module supports. With
              this module you can read in a postscript file, and edit it
              with the standard tools of AVS ! Any of the following image
              file formats can be read in by this module eps Encapsulated
              PostScript file, gif Compuserve Graphics image file, hdf
              Hierarchical Data File, icon Sun Icon and Cursor file, iff
              Sun TAAC Image File Format, mpnt Apple Macintosh MacPaint
              file, pbm Portable Bit Map file, pcx ZSoft IBM PC Paintbrush
              file, pgm Portable Gray Map file, pic PIXAR picture file,
              pict Apple Macintosh QuickDraw/PICT file, pix Alias image
              file, pnm Portable aNy Map file, ppm Portable Pixel Map
              file, ps PostScript file, ras Sun Rasterfile, rgb SGI RGB
              image file, rla Wavefront raster image file, rle Utah Run
              length encoded image file, rpbm Raw Portable Bit Map file,
              rpgm Raw Portable Gray Map file, rpnm Raw Portable aNy Map
              file, rppm Raw Portable Pixel Map file, synu Synu image
              file, tiff Tagged image file, x Stardent AVS X image file,
              xbm X11 bitmap file, xwd X Window System window dump image
              file.

Name        : WRITE_ANY_IMAGE Version      : 2.000     Mod Number : 1212 
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 05/21/92        Last Updated : 12/21/92  Language   : C        
Ported to   : Sun DEC IBM HP
Description : This module writes an image from an AVS Network in a variety
              of formats. All formats which the San Diego Supercomputing
              Center's image tools support, this module supports. With
              this module you can write out an AVS image in MacPaint format
              for inclusion in a to-be published document !! Any of the
              following image file formats can be read in by this module
              eps Encapsulated PostScript file, gif Compuserve
              Graphics image file, hdf Hierarchical Data File, icon Sun
              Icon and Cursor file, iff Sun TAAC Image File Format, mpnt
              Apple Macintosh MacPaint file, pbm Portable Bit Map file,
              pcx ZSoft IBM PC Paintbrush file, pgm Portable Gray Map
              file, pic PIXAR picture file, pict Apple Macintosh
              QuickDraw/PICT file, pix Alias image file, pnm Portable
              aNy Map file, ppm Portable Pixel Map file, ps PostScript
              file, ras Sun Rasterfile, rgb SGI RGB image file, rla
              Wavefront raster image file, rle Utah Run length encoded
              image file, rpbm Raw Portable Bit Map file, rpgm Raw
              Portable Gray Map file, rpnm Raw Portable aNy Map file, rppm
              Raw Portable Pixel Map file, synu Synu image file, tiff
              Tagged image file, x Stardent AVS X image file, xbm X11
              bitmap file, xwd X Window System window dump image file.
              Version 2.0 frees allocated memory after writing each
              image.

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------

****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfeld
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

617-890-4300       Advanced Visual Systems Inc. phone number.
		   Call here if you are interested in purchasing AVS.

617-890-8287	   AVS Inc.'s FAX Number

info@avs.com	   AVS Inc.'s email address
****************************************************************************


From dsmith@uoft02.utoledo.edu
Newsgroups: comp.graphics.avs
Subject: AVS Chemistry Viewer and GAMESS
Message-ID: <1992Dec23.121306.618@uoft02.utoledo.edu>
Date: 23 Dec 92 12:13:06 EST
Organization: University of Toledo, Computer Services
Lines: 12

Has anyone written a module or modules to interface the AVS Chemistry Viewer
from Molecular Simulations, Inc. with the ab initio code GAMESS, available
from Mark Gordon and Mike Schmidt?

Doug Smith
Assistant Professor of Chemistry
The University of Toledo
Toledo, OH  43606-3390

voice    419-537-2116
fax      419-537-4033
email    dsmith@uoft02.utoledo.edu


From wbardwel@elara.mitre.org (Bill Bardwell)
Subject: Irregular Field Coords 
Message-ID: <1992Dec23.212707.9451@linus.mitre.org>
Sender: news@linus.mitre.org (News Service)
Nntp-Posting-Host: elara.mitre.org
Organization: Research Computer Facility, MITRE Corporation, Bedford, MA
Date: Wed, 23 Dec 1992 21:27:07 GMT
Lines: 13


While trying to figure out how to set coordinates
in a 2D 3-coords irregular I came across this in field.h:
"NOTE: These only work for 3D 3-space data! If there is some other dimensionality or space, you want to use
UTILget_coord(field, i, j, k, &x, &y, &z)"
Can anyone tell me how to use this (why is so much stuff
missing from the manuals...(like the existance of any of
the UTIL stuff...))
Thanks.

William Bardwell
wbardwel@elara.mitre.org
P.S. still haven't figured out how to set the coords right.


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Top 10 Modules at the IAC
Message-ID: <BzzJJI.DMo@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 28 Dec 1992 19:59:41 GMT

Hi Folks,

The 10 most frequently downloaded AVS modules have been determined
through analysis of our ftp log.  Compressed tar archives of all of 
these binary executables have been created for each of the AVS Consortium 
platforms, as well as an archive of all the source.  These can be found
on the ftp site at avs.ncsc.org:avs_top10_mods/*

	-rwxr-xr-x  1 avs       2564497 Dec 28 13:56 Convex10.exe.tar.Z*
	-rwxr-xr-x  1 avs       4721820 Dec 28 13:56 DEC10.exe.tar.Z*
	-rwxr-xr-x  1 avs       3578731 Dec 28 13:56 HP10.exe.tar.Z*
	-rwxr-xr-x  1 avs       4174357 Dec 28 13:56 IBM10.exe.tar.Z*
	-rwxr-xr-x  1 avs       2537085 Dec 28 13:56 Kubota10.exe.tar.Z*
	-rwxr-xr-x  1 avs       4289329 Dec 28 13:56 Sun10.exe.tar.Z*
	-rwxr-xr-x  1 avs        391710 Dec 28 13:56 Top10.src.tar.Z*

There are actually 11 modules included, as there are two 3D_axis modules
included in the statistics.  Their names and rankings are:

        Top Ten IAC Modules
        -------------------
            12/28/92
	Rank         Module  
	----         ------ 
	1.   READ_ANY_IMAGE  
	2.    Wes's 3D_axis 
	      KCI's 3D_axis 
	3.  WRITE_ANY_IMAGE
	4.        read_tiff 
	5.         plot_xyz
	6.       mandelbrot 
	7.          contour  
	8.         read_gif 
	9.     fast_animate 
	10.    animate_file


FYI, I'll include their documentation from the catalog below.  Enjoy!

-Steve

PS  Would you be interested in sharing your AVS work with the
scientific visualization community worldwide via a short article 
and / or slides in an upcoming issue of AVS Network News?  This 
is the IAC's quarterly magazine made up of user contributed 
articles.  Thanks for considering this!
----------------------------------------------------------------
   Steve Thorpe, Application Visualization System Specialist
International AVS Center, North Carolina Supercomputing Center
PO Box 12889   3021 Cornwallis Rd, RTP, NC 27709   avs@ncsc.org
----------------------------------------------------------------

Name        : READ_ANY_IMAGE  Version      : 2.000     Mod Number : 1211
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 05/21/92        Last Updated : 05/21/92  Language   : C
Ported to   : Sun DEC IBM HP
Description : This module reads an image into an AVS Network in a variety of
              formats. All formats which the San Diego Supercomputing
              Center's image tools support, this module supports. With
              this module you can read in a postscript file, and edit it
              with the standard tools of AVS ! Any of the following image
              file formats can be read in by this module eps Encapsulated
              PostScript file, gif Compuserve Graphics image file, hdf
              Hierarchical Data File, icon Sun Icon and Cursor file, iff
              Sun TAAC Image File Format, mpnt Apple Macintosh MacPaint
              file, pbm Portable Bit Map file, pcx ZSoft IBM PC Paintbrush
              file, pgm Portable Gray Map file, pic PIXAR picture file,
              pict Apple Macintosh QuickDraw/PICT file, pix Alias image
              file, pnm Portable aNy Map file, ppm Portable Pixel Map
              file, ps PostScript file, ras Sun Rasterfile, rgb SGI RGB
              image file, rla Wavefront raster image file, rle Utah Run
              length encoded image file, rpbm Raw Portable Bit Map file,
              rpgm Raw Portable Gray Map file, rpnm Raw Portable aNy Map
              file, rppm Raw Portable Pixel Map file, synu Synu image
              file, tiff Tagged image file, x Stardent AVS X image file,
              xbm X11 bitmap file, xwd X Window System window dump image
              file.

Name        : 3D_axis         Version      : 1.000     Mod Number : 1552
Author      : Wes Bethel, Lawrence Berkeley Laboratory
Submitted   : 10/10/91        Last Updated : 12/18/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : This module generates 3D coordinate axis for a 3D data set.
              It will also optionally generate tick marks along each
              axis, numeric labels for the tick marks, and movable mesh
              planes perpendicular to each of the axes. Ported to HP and
              Sun on 12/18/92 by SRT.

Name        : 3D_axis         Version      : 1.000     Mod Number : 1152
Author      : Kubota Pacific Computer Inc
Submitted   : 03/12/92        Last Updated : 03/12/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : This module displays the coordinate axis of the 3D graphic
              display.

Name        : WRITE_ANY_IMAGE Version      : 2.000     Mod Number : 1212
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 05/21/92        Last Updated : 05/21/92  Language   : C
Ported to   : Sun DEC IBM HP
Description : This module writes an image from an AVS Network in a variety
              of formats. All formats which the San Diego Supercomputing
              Center's image tools support, this module supports. With
              this module you can write out an AVS image in MacPaint format
              for inclusion in a to-be published document !! Any of the
              following image file formats can be read in by this module
              eps Encapsulated PostScript file, gif Compuserve
              Graphics image file, hdf Hierarchical Data File, icon Sun
              Icon and Cursor file, iff Sun TAAC Image File Format, mpnt
              Apple Macintosh MacPaint file, pbm Portable Bit Map file,
              pcx ZSoft IBM PC Paintbrush file, pgm Portable Gray Map
              file, pic PIXAR picture file, pict Apple Macintosh
              QuickDraw/PICT file, pix Alias image file, pnm Portable
              aNy Map file, ppm Portable Pixel Map file, ps PostScript
              file, ras Sun Rasterfile, rgb SGI RGB image file, rla
              Wavefront raster image file, rle Utah Run length encoded
              image file, rpbm Raw Portable Bit Map file, rpgm Raw
              Portable Gray Map file, rpnm Raw Portable aNy Map file, rppm
              Raw Portable Pixel Map file, synu Synu image file, tiff
              Tagged image file, x Stardent AVS X image file, xbm X11
              bitmap file, xwd X Window System window dump image file.
              Version 2.0 frees allocated memory after writing each
              image.

Name        : read_tiff       Version      : 2.000     Mod Number : 1159
Author      : Steve Thorpe, International AVS Center (NCSC)
Submitted   : 03/20/92        Last Updated : 12/27/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : This module reads a TIFF format file and creates a 32-bit
              ARGB image in the AVS "field 2D 4-vector byte" format. Code
              modified to compile on Sun, DEC, Kubota, Convex and HP on
              12/27/92 - SRT.

Name        : plot_xyz        Version      : 1.000     Mod Number : 1064
Author      : Wes Bethel, Lawrence Berkeley Laboratory
Submitted   : 10/10/91        Last Updated : 10/10/91  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : This module reads an ASCII file consisting of lists of x,y,z
              points and constructs a polyline geometry object using the
              points in the file as vertices.

Name        : mandelbrot      Version      : 1.000     Mod Number : 1108
Author      : Larry Gelberg, Stardent Computer
Submitted   : 11/27/91        Last Updated : 11/27/91  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : Generates the mandelbrot set, at a specific location, for a
              certain number of iterations, at a certain size, all
              determined by paramter widgets.

Name        : contour         Version      : 2.000     Mod Number : 1023 
Author      : Stardent Computer
Submitted   : 10/10/91        Last Updated : 12/16/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : Finds and creates contour lines of similar value in a 2D
              scalar field. The parameter "threshold" controls the
              level of contour being found. The parameter "new" controls
              the byte value written into a black (value = 0) image as the
              contour. This module could be used to find, for example, a
              contour on the red channel of an image, then overlay it back
              onto the original image. Updated by Steve Thorpe as per
              Susan Katz's suggestion on 12/16/92 to remove the
              informational messages every time it is executed.

Name        : read_gif        Version      : 1.000     Mod Number : 1101
Author      : Larry Gelberg, Stardent Computer
Submitted   : 11/22/91        Last Updated : 11/22/91  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : This module reads a GIF format file and creates a 32-bit ARGB
              image in the AVS "field 2D 4-vector byte" format. If the GIF
              file has an embedded color-map, that is used, otherwise, it
              creates a linear grey-scale ramp.

Name        : fast_animate    Version      : 1.000     Mod Number : 1181
Author      : Keith Refson, Oxford University
Submitted   : 04/30/92        Last Updated : 04/30/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : The fast animate module implements an animation of a
              sequence of AVS geometry files by reading them into memory
              and sending the geometries in rapid succession to its
              output port. By storing the geometries in memory it can
              achieve substantially better animation rates than the use
              of a cycle object in a script would. Furthermore the
              animation rate is independent of the length of the sequence
              until physical memory is exhausted. The module was
              developed for visuali- zation of molecular dynamics
              simulations where the geometries are "ball and stick"
              representations of molecular assemblies, but is not
              restricted to such.

Name        : animate_file    Version      : 2.000     Mod Number : 1135
Author      : Terry Myerson, International AVS Center (NCSC)
Submitted   : 02/24/92        Last Updated : 11/04/92  Language   : C
Ported to   : Sun DEC Kubota Convex HP IBM
Description : anim_fname is used to output a series of filenames for input
              into a reader module. The module inputs an integer and a
              filename base, and output a filename in the form
              "$base.%3d". This module is very useful for a series of
              files containing a time series of data. Bug fixes and
              extensions for version 2.0 added by Wes Bethel, LBL.

****************************************************************************

                   INTERNATIONAL AVS CENTER CONTACT INFO:
                   -------------------------------------

		   David Bennett, IAC Director
		   Katie Mohrfeld
		   Steve Thorpe
		   Terry Myerson
		   Ann Cadran
		   Rebecca Gebuhr
		   Sandra Hedrick
		   Dianne Reid

                   International AVS Center
                   North Carolina Supercomputing Center
                   3021 Cornwallis Road
                   Research Triangle Park, NC 27709

		   Please send articles and slides for future
		   issues of AVS Network News, our quarterly
		   magazine featuring articles from AVS users
		   worldwide.

avs93@ncsc.org     email here for info on the AVS '93 conference
                   to be held outside of Orlando, Florida, on
		   May 24-26, 1993.  Theme:  The Magic of Science

avsemail@ncsc.org  email anything here to receive an automated
		   reply including the latest module catalog,
		   AVS User Group registration information, and
		   the latest version of the IAC README file

avs@ncsc.org	   email questions to IAC staff here.  Messages
		   will be routed to all of us and answered by
		   at least one of us.

avsorder@ncsc.org  use this email address to order AVS module source code
		   if you do not have ftp access.  These messages are
		   sent through an automated script - please see 
		   the section "EMAIL FACILITIES" in the mail returned
		   by avsemail@ncsc.org for further info on this.

avs.ncsc.org	   ftp address of the IAC's anonymous ftp site
		   (this is IP number 128.109.178.23)

919-248-1100	   Our phone number - though frequently its easier to
		   track us down via email to avs@ncsc.org 

919-248-1101	   Our FAX number

WHAT_IS_WAIS	   Check these files for information on two useful
WHAT_IS_GOPHER     tools for perusing our anonymous ftp site.  These
		   can be obtained via anonymous ftp (of course!) from
		   the directory avs.ncsc.org:avs_readme

617-890-4300       Advanced Visual Systems Inc. phone number.
		   Call here if you are interested in purchasing AVS.

617-890-8287	   AVS Inc.'s FAX Number

info@avs.com	   AVS Inc.'s email address
****************************************************************************


From rsignell@crusty.er.usgs.gov (Richard P. Signell)
Newsgroups: comp.graphics.avs
Subject: Handling of "missing" or "special values"
Message-ID: <1992Dec30.150955.18683@netnews.whoi.edu>
Date: 30 Dec 92 15:09:55 GMT
Sender: news@netnews.whoi.edu
Organization: U.S. Geological Survey, Woods Hole, MA
Lines: 30

Is there a way to tell isosurface to ignore missing or special
values in a 3D grid?  Setting missing values to zero or some
other value does *not* have the desired affect.

The problem of missing values arises all the time in oceanography,
since we are often working with data on some sort of a latitude,
longitude and depth grid, but we only have data in ocean grid cells.
In land grid cells, we have no data, and for graphical techniques 
like contouring and isosurfaces, we want these points to be ignored.  
Most contouring packages (e.g. ISM, NCAR graphics) allow you to define 
a special value, say 1.e35, that indicates to the application that the 
point is to be ignored.  The contouring routine recognized special values,
and no contours are drawn in any box of the grid with a special value at 
one or more of its four corners.   This capability, however, does not
seem to exist in AVS.  Am I missing something fundamental here?

The simple technique of just manipulating the data field by 
setting all the values to zero or some other number does not work,
since contour or isosurface will try to draw contours or isosurfaces between
the "good" data points and the "missing" data points.   I believe the
modules themselves (isosurface, contour to geom ,etc) would have to 
recognize "special values" and act apppropriately to handle this problem.

I would love to here what other people have to say about this problem....

--
Rich Signell               |  rsignell@crusty.er.usgs.gov
U.S. Geological Survey     |  (508) 457-2229  |  FAX (508) 457-2310
Quissett Campus            |  " When marriage is outlawed, 
Woods Hole, MA  02543      |    only outlaws will have inlaws. "


From gardner@convex.com (Steve Gardner)
Newsgroups: comp.graphics.avs
Subject: Re: Handling of "missing" or "special values"
Message-ID: <1992Dec30.164201.10705@news.eng.convex.com>
Date: 30 Dec 92 16:42:01 GMT
References: <1992Dec30.150955.18683@netnews.whoi.edu>
Sender: usenet@news.eng.convex.com (news access account)
Organization: Engineering, CONVEX Computer Corp., Richardson, Tx., USA
Lines: 43
Nntp-Posting-Host: imagine.convex.com
X-Disclaimer: This message was written by a user at CONVEX Computer
              Corp. The opinions expressed are those of the user and
              not necessarily those of CONVEX.

In article <1992Dec30.150955.18683@netnews.whoi.edu> rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:
>Is there a way to tell isosurface to ignore missing or special
>values in a 3D grid?  Setting missing values to zero or some
>other value does *not* have the desired affect.
	You might try putting your data into a UCD.  You will have to
	partition your data space into 3-D cells ( hexahedrons,tetrahedrons,
	pyramids, prisms) such that none of the nonexistent data points
	is included in a cell. Note that it must be a partition---no
	overlap is allowed.  The ucd iso module should then do the right thing.

	By the way, the problem you describe is rather common with the 
	AVSfield data type and one of the reasons why the UCD type is needed.
	Any time that the domain of definition of the function (the points 
	at which functional values occur) is topologically "complex" it 
	cannot be represented well with an AVSfield.  AVSfields assume that 
	the domain of definition is 2N-fold connected (where N is the 
	dimensionality of the space) and that linear interpolation can be done
	between neighboring points.  To make this more concrete, AVS fields
	in 3D assume that there are 6 neighbor points to point(i,j,k) 
	{point(i,j,k+1),point(i,j,k-1), . . . point(i+1,j,k),point(i-1,j,k)}
	It also assumes this same neighbor relation for functional values 
	and assumes that linear interpolation can generate the values 
	between two points (e.g. data(i,j,k) and data(i,j,k+1)).
	Your functions do not fit this assumption.  As you pointed out some 
	other packages take care of topological problems like yours by 
	allowing a complex data domain to be "gridded over" by a nice 2N-fold 
	grid where "illegal" values are used to indicate "holes".
	This can be a problem since it is conceivable that any value you
	may choose to be illegal may exist in some data sets and it can
	also be wasteful of storage since the grid must be the bounding box 
	of the data set.  In AVS the use of UCDs to model complex topologies
	is the preferred method.

	I hope this answers your question.  Feel free to contact me via
	email at the address below if you have any further questions.

==============================================================================
Steve Gardner					Convex Computer Corporation
Software Engineer				3000 Waterview Parkway
Scientific Visualization Applications		P.O. Box 833851
email: gardner@convex.com			Richardson, Texas 75083-3851
Phone: 214-497-4539  				Fax: 214-497-4500
==============================================================================


From massiot@felix-e.crihan.fr (Alain Massiot)
Newsgroups: comp.graphics.avs
Subject: Changing the value of Stride using AVS File Descriptor
Keywords: stride
Message-ID: <1992Dec30.092656.5901@felix-e.crihan.fr>
Date: 30 Dec 92 09:26:56 GMT
Sender: massiot@felix-e (Alain Massiot)
Organization: CRIHAN, France
Lines: 17



Can somebody tell me how to change the (max.) value of the stride, because 
when I try to put a value greater than 50 , it keeps as max. value 50.
The problem is that my mesh must be read with a stride of 100 ...
Can somebody help me ???

Please  e-mail your answer .

alain massiot
massiot@crihan.fr

-- 
---------------------------------------------------------------------
Alain Massiot                    | C R I H A N
				 | Centre de Ressources Informatiques
Phone: +33 35 59 61 50		 | de Haute Normandie


From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: Handling of "missing" or "special values"
Message-ID: <1992Dec30.121439.81@rcwusr>
Date: 30 Dec 92 18:14:39 GMT
References: <1992Dec30.150955.18683@netnews.whoi.edu>
Organization: BP Research, Cleveland, OH (USA)
Lines: 16

In article <1992Dec30.150955.18683@netnews.whoi.edu>, rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:
> Is there a way to tell isosurface to ignore missing or special
> values in a 3D grid?  Setting missing values to zero or some
> other value does *not* have the desired affect.
> 

One trick we considered (topo map with some corners missing) was to break the
grid domain into several rectilinear 2-D fields.  We would then assign the
appropriate coordinates to each data point and combine the several 2-D views in
a Geometry Viewer.

We ended up re-gridding the data into a spreadsheet and filling in the missing
corners by hand ...

Rob Lake
BP Research


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - Read_Unversal_FI
Message-ID: <C036z6.9Dp@doppler.ncsc.org>
Sender: thorpe@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Wed, 30 Dec 1992 19:18:42 GMT

Name        : Read_Unversal_FIVersion      : 1.000     Mod Number : 1562 
Author      : kawanishi@tkov51.enet.dec.com, Digital Equipment
              Corporation
Submitted   : 12/30/92        Last Updated : 12/30/92  Language   : C        
Ported to   : DEC Kubota Convex IBM
Description : Read Unversal File is a utility module for conversion of
              I-DEAS Unversal Files into AVS UCD data. This module only
              extracts Stress data and node-element information.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - Vector_Label
Message-ID: <C037KC.A9y@doppler.ncsc.org>
Sender: thorpe@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Wed, 30 Dec 1992 19:31:24 GMT

Name        : Vector_Label    Version      : 1.000     Mod Number : 1563 
Author      : Charles J Williams III, Naval Research Lab
Submitted   : 12/30/92        Last Updated : 12/30/92  Language   : C        
Ported to   : DEC Kubota Convex IBM
Description : This module produces labels that are geometries. They can
              be scaled, rotated, and translated. Other geometric
              operators work as well, such as color, perspective, and
              material properties. The source for the vector
              information for the fonts is derived from the Hershey
              Fonts, stored in comp.sources.unix, volume 4, on your
              nearest archive site. The Hershey Fonts were originally
              created by Dr. A. V. Hershey while working at the U.S.
              National Bureau of Standards. The format of the font data in
              the Internet distribution was originally created by James
              Hurt at Cognition, Inc.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From wes@ux6.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.avs
Subject: Re: Handling of "missing" or "special values"
Date: 30 Dec 1992 20:50:06 GMT
Organization: Lawrence Berkeley Laboratory
Lines: 48
Message-ID: <1ht21uINN1ui@overload.lbl.gov>
References: <1992Dec30.150955.18683@netnews.whoi.edu+
Reply-To: wes@ux6.lbl.gov (Wes Bethel)
NNTP-Posting-Host: ux6.lbl.gov

In article <1992Dec30.150955.18683@netnews.whoi.edu+ rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:
+Is there a way to tell isosurface to ignore missing or special
+values in a 3D grid?  Setting missing values to zero or some
+other value does *not* have the desired affect.
+
+...
+The simple technique of just manipulating the data field by 
+setting all the values to zero or some other number does not work,
+since contour or isosurface will try to draw contours or isosurfaces between
+the "good" data points and the "missing" data points.   I believe the
+modules themselves (isosurface, contour to geom ,etc) would have to 
+recognize "special values" and act apppropriately to handle this problem.
+
+I would love to here what other people have to say about this problem....
+

Ok.  you asked, for it. ;-)

The power of the "marching cubes" (tm) (blech) algorithm is that it
breaks a big problem into  a bunch of little problems.  The little
problem is to find where the surface of interest intersect the (possibly
twisted) hexahedron that you're looking at.

But wait, there's an assumption that there is data at each corner of the
hexahedron.  You're saying that you don't necessarily have data at
each corner of the hexahedron, so this isn't the right algorithm to
use.  Unfortunately, unless someone else has some code laying around
that gets around this problem (ie, "non-marching" methods) you're
stuck with the AVS supplied isosurface.

The absolute best you can do, using marching cubes that is, is to use 
your judgement to provide data values where there are none.  I guess 
you've tried some of the crusty interpolation modules which are 
available, only to have land crop up in the middle of the ocean ;-). 

One suggestion for a modification to marching cubes that might work is
to create an adaptive algorithm that will collapse or combine adjacent 
grid cells when these undefined values are detected.  This sounds like 
a master's project, so I'll pass for the time being.  It definitely
sounds like something that should come from the user community though,
as opposed to asking AVS for something suitable (its too specific, not
general enough, or whatever).

Let us know when you write the module and submit it to the IAC. ;-)

wes




From srinivas@lgc.com (Manapragada Srinivas)
Subject: Geometry Viewer misses inputs?
Message-ID: <1992Dec31.012514.7123@lgc.com>
Sender: usenet@lgc.com
Nntp-Posting-Host: squirt.lgc.com
Organization: Landmark Graphics LGC
Date: Thu, 31 Dec 1992 01:25:14 GMT
Lines: 114

Hi,

	We are having a problem with the geometry viewer, it seems to be
missing certain inputs. I will explain the problem with the help of the
network below -


                                             +-----+
                                             |     |
			+--------------------+-+   |
			|         CM1          |   |
			| UI Module (Coroutine)|   |
			+------------------+---+   |
					   |    integer
					   |     (ack)
			                string     |
				      (file name)  |
					   |       |
			+------------------+---+   |
			|         SM1          |   |
			| Data Reader Module   |   |
			|    (Subroutine)      |   |
			+------------------+-+-+   |
					   | |     |
					   | +-----+
			                 field
					   |
			+------------------+---+
			|         SM2          |
			| Data Mapper Module   |
			|    (Subroutine)      |
			+------------------+---+
					   |
				        Geometry
					   |
			+------------------+---+
			|          G1          |
			|   Geoemtry Viewer    |
			+----------------------+


	CM1 (UI Module) implements a motif user interface, among various
ui components, there is a file selection dialog box, wherein a user can
select one or more files. If more than one file is selected, the module
will output the name of the first one and queue up the rest for subsequent
outputs. The file names in the queue are sent one by one to SM1 (Data Reader
Module), the module downstream. A name from the queue is output if and only
if an acknowledgement is received from SM1, which simply is an integer input
port in CM1. Finally when the queue is drained, CM1 will call
AVSmark_output_unchanged on its string output port, to prevent uncontrolled
loops.

	SM1 implements the file IO, it accepts a name from CM1 and reads
the file, creates an AVS field, and sets the first label to the filename.
After it is done it outputs the field to SM2 (Data Mapper Subroutine) and an
integer to CM1. The integer serves as an acknowledgement to CM1, which then
outputs another filename.

	SM2 implements a mapper which creates a geometry from the field.
The first label is extracted from the field and is used for the naming the
geometry. Hence each geometry object is named after the file from which the
data was read in. This geometry is output to G1 (Geometry Viewer).

	The above explains in a nutshell what we are doing. Now the problem
is that when a user selects multiple file names, for eg. A, B and C, only
the geometry corresponding to C shows up in G1. When looking at the printf's
to trace the flow of the data, we see that SM1 has successfully read all
the files, and SM2 has successfully generated the corresponding geometries.
So there is no loss of data among CM1, SM1 and SM2. However G1 is missing
the geometries corresponding to A and B. Isn't the flow executive supposed
to handle this?

	Now I know that in the interface between a coroutine module running
asynchronously and a subroutine module, data loss is possible. We took
elaborate measures to counter this by passing all the critical data through
FIFO buffers and having an acknowledgement mechanism to time the outputs
properly. This solution has worked very well for us.

	However I did not expect data loss between a subroutine module and
the geometry viewer (which is a builtin module). Is it possible that the
geometry viewer also runs asynchronously like a coroutine module? If so the
upstream information currently put out is inadequate. For instance in the
problem above upstream information about objects being added should be
sent out, so that the upstream module can know when it is safe to output yet
another geometry.

	Ofcourse the proper and elegant solution would be to use queues on
the geometry viewers input ports, as FIFO buffers, so that no data is lost.

	Now I will describe the current work-around we are using. In SM2
we call GEOMinit_edit_list only once and reuse the edit list for subsequent
invocations. This seems to solve the problem and all the geometries appear
without being lost. The code fragment looks like this,

		if( !*geom ) // Dangerous! remove this later
	    		*geom = GEOMinit_edit_list( *geom );

		GEOMedit_geometry( *geom, name, obj );
		GEOMdestroy_obj( obj );
	
however I am afraid this might be a very bad thing to do :^) What are the
possible repurcussions of reusing the edit list, without initializing it?
I guess the list will keep growing endlessly. Also deletions would become
a headache.

	I hope I am missing something very obvious, if so please point it out.
In either case any help, suggestions and or workarounds would be greatly
appreciated.

Thanks,
Srinivas
Landmark Graphics Corp.					(713) 560-1073
-- 
Yonder, beyond the event horizon!


From wes@ux6.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.avs
Subject: Re: Handling of "missing" or "special values"
Message-ID: <1992Dec31.132211.23208@netnews.whoi.edu>
Date: 31 Dec 92 13:22:11 GMT
References: <1992Dec30.150955.18683@netnews.whoi.edu+ <1ht21uINN1ui@overload.lbl.gov>
Sender: news@netnews.whoi.edu
Organization: U.S. Geological Survey, Woods Hole, MA
Lines: 31

In article <1ht21uINN1ui@overload.lbl.gov> wes@ux6.lbl.gov (Wes Bethel) writes:

>In article <1992Dec30.150955.18683@netnews.whoi.edu+ rsignell@crusty.er.usgs.gov (Richard P. Signell) writes:

>+Is there a way to tell isosurface to ignore missing or special
>+values in a 3D grid?  Setting missing values to zero or some
>+other value does *not* have the desired affect.

>The power of the "marching cubes" (tm) (blech) algorithm is that it
>breaks a big problem into  a bunch of little problems.  The little
>problem is to find where the surface of interest intersect the (possibly
>twisted) hexahedron that you're looking at.
>
>The absolute best you can do, using marching cubes that is, is to use 
>your judgement to provide data values where there are none.  I guess 
>you've tried some of the crusty interpolation modules which are 
>available, only to have land crop up in the middle of the ocean ;-). 

In fact, this is how I currently deal with the situation: I provide 
data values where there are none, making the data value equal to the
neighboring *good* point.  This way isosurface can't put a surface 
between the *special value* point and the *good* point.

I was hoping for something better, but thanks to the explanation about
how isosurface works, I now understand why it's a problem.

--
Rich Signell               |  rsignell@crusty.er.usgs.gov
U.S. Geological Survey     |  (508) 457-2229  |  FAX (508) 457-2310
Quissett Campus            |  " When marriage is outlawed, 
Woods Hole, MA  02543      |    only outlaws will have inlaws. "


