From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: How to create 3D models
Message-ID: <C0C6o7.6BI@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 4 Jan 1993 15:50:30 GMT

Hi Folks,

I'm posting this for a gentleman named Mr. Yossi Glass who
works for DEC in Israel.  Yossi doesn't have access to the 
newsgroups directly, so I am taking care of this for him.
Please send any responses to me via email, and I will
forward them on to Yossi.  Thank you and Happy New Year !

----------------------------------------------------------------
I am looking for a way to create 3D models, and manipulate them 
from an application.  A possible way to do that would be to use 
the "create geom" module of AVS, write the data, and then read
it from an application and render it using PHIGS. 

Has anyone done something like this?  Or can I get the source 
code of a geometry viewer module of AVS that does this (using
PHIGS)."
 
Thanks,

- Yossi Glass 
----------------------------------------------------------------

----------------------------------------------------------------
   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 thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Missing data, or data with holes
Message-ID: <C0Etpy.6AM@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Wed, 6 Jan 1993 02:03:34 GMT

Here is a posting from Ian Curington at AVS Inc - Steve

User: ianc@AVS.COM
Submission Date: Tue Jan  5 17:47:04 EST 1993
News Group message:
 I have used to following to visualize data with holes in AVS:
  1. Set missing values to something well out of range of actual data
  2. Use some form of field reader
  3. use field to UCD
  4. use ucd threshold to throw out all cells with out of range values
  5. Then use ucd iso, ucd contour, ucd slice, etc.
    -- producing pictures with holes.
  Note, field to ucd needs 3D fields.

 Sincerely,
 Ian

----------------------------------------------------------------
   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 dianne@doppler.ncsc.org (Dianne Reid)
Subject: AVS Network News
Message-ID: <C0Jo57.EDt@doppler.ncsc.org>
Summary: AVS Network News available electronically
Keywords: AVS Network News
Organization: North Carolina Supercomputing Center
Date: Fri, 8 Jan 1993 16:51:07 GMT


*****************************************************************************
                               ATTENTION! 
*****************************************************************************

 	The Spring 1992 issue of AVS Network News (Vol1_Issue2) is
	now available in text only format from the IAC's anonymous 
	FTP site.  The last issue, Vol1_Issue3, will be posted soon.

	Also note that the Spring '92 issue as well as the others
	on the FTP site are also available in postscript format. ENJOY!



From edb@dmssyd.syd.dms.CSIRO.AU (Ed Breen)
Subject: CALL FOR PAPERS DICTA '93
Message-ID: <C0nyAC.E05@syd.dms.CSIRO.AU>
Originator: edb@friend.syd.dms.CSIRO.AU
Sender: news@syd.dms.CSIRO.AU
Reply-To: edb@dmssyd.syd.dms.CSIRO.AU (Ed Breen)
Organization: CSIRO Division of Mathematics and Statistics, Australia
Date: Mon, 11 Jan 1993 00:20:35 GMT
Lines: 136


		Australian Pattern Recognition Society

			FIRST CALL FOR PAPERS

		     	    DICTA '93

			2nd Conference on -

	DIGITAL IMAGING COMPUTING TECHNIQUES AND APPLICATIONS


Location: Macquarie Theatre
	  Macquarie University
	  Sydney

Date: 8-10 December 1993.


   DICTA '93 is the second biennial national conference of the
Australian Pattern Recognition Society.

   This event will provide an opportunity for any persons with an
interest in computer vision, digital image processing/analysis and other
aspects of pattern recognition to become informed about contemporary
developments in the area, to exchange ideas, to establish contacts and
to share details of their own work with others.

   Several invited speakers will provide specialized presentations on
their own area of expertise. A number of overseas speakers will also be
presenting their work.

   The conference will concentrate on (but is not limited to) the
following areas of image processing:-

	* Computer Vision and Object Recognition
	* Motion Analysis
	* Morphology
	* Medical Imaging
	* Fuzzy logic and Neural Networks
	* Image Coding
	* Machine Vision and Robotics
	* Enhancement and Restoration
	* Industrial Applications
	* Software and Hardware Tools

   Papers are sought for prensentation at the conference and publication
in the conference proceedings. Submission for peer review should consist
of an extended abstract of 750-1000 doubled spaced text, summarizing the
technical aspects of the paper and any results that will be quoted.
Final papers should be limited to no more than 8 pages of text and
illustrations in camera-ready form.


   Four (4) copies of the abstract should be sent to:


		 DICTA '93
	    C/- Tony Adriaansen
    CSIRO - Division of Wool Technology
		 PO Box 7
	      Ryde NSW 2112
	        Australia



		IMPORTANT DATES

	Abstract due		- 25th June 1993
	Acceptance notified	- 27th August 1993
	Final paper due		- 15th October 1993 


   If you are planning to present a paper or attend the conference,
please mail/email expression of interest by March 1993.


		Expression of Interest
--------------------------------------------------------------------

Name:...............................................................

Organization:.......................................................

....................................................................

Postal Address:.....................................................

....................................................................

  +-+
  | |  I expect to attend the conference.
  +-+
 
  +-+
  | |  I expect to present a paper entitled:
  +-+
      .............................................................

      .............................................................

  +-+
  | | Please keep me informed about the conference.
  +-+

  +-+
  | | Please send me accomondation details.
  +-+

  +-+
  | | Please send me details on APRS activities and membership. 
  +-+  
-------------------------------------------------------------------
	

For further information contact:

* Tony Adriaansen (02) 809 9495

* Athula Ginigie (02) 330 2393

* email: dicta93@ee.uts.edu.au











Keywords: 




From gates@cscsparc.larc.nasa.gov (Ray Gates)
Newsgroups: comp.graphics.avs
Subject: Parallel AVS????
Date: 11 Jan 1993 18:43:48 GMT
Organization: NASA Langley Research Center, Hampton, VA  USA
Lines: 14
Distribution: world
Message-ID: <1isf54INN1p3@rave.larc.nasa.gov>
NNTP-Posting-Host: cscsparc.larc.nasa.gov

Just talking to a computer vendor who mentioned something about Parallel AVS????
Anybody out there ever heard of this???  Anyone know anything about it????
Any info would be greatly appreciated.....thanks in advance.......
-- 
_______________________________________________________________________________
				       |        Ray Gates 
	"Mama, mama, many worlds       |	CSC/NASA-Langley
	 have come since I first       |	gates@cscsun1.larc.nasa.gov
               left home."	       |              (128.155.42.32)
				       |        Phone:  804.865.1725
-------------------------------------------------------------------------------
DISCLAIMER: The comments/opinions contained within are my own and do not
            necessarily represent the opinions of my employer(s).
-------------------------------------------------------------------------------


From dianne@doppler.ncsc.org (Dianne Reid)
Subject: AVS Network News
Message-ID: <C0pIDn.1I2@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Mon, 11 Jan 1993 20:32:10 GMT


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

	The latest issue of AVS Network News (Vol1_Issue3) 
	is now available in both text-only and postscript
	formats from the IAC's anonymous FTP site, under
	the directory avs_net_news.  ENJOY!

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


From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: Parallel AVS????
Message-ID: <1993Jan11.175438.101@rcwusr>
Date: 11 Jan 93 17:54:38 -0600
References: <1isf54INN1p3@rave.larc.nasa.gov>
Distribution: world
Organization: BP Research, Cleveland, OH (USA)
Lines: 39

In article <1isf54INN1p3@rave.larc.nasa.gov>, gates@cscsparc.larc.nasa.gov (Ray Gates) writes:
> Just talking to a computer vendor who mentioned something about Parallel AVS????
> Anybody out there ever heard of this???  Anyone know anything about it????
> Any info would be greatly appreciated.....thanks in advance.......
> -- 
> _______________________________________________________________________________
> 				       |        Ray Gates 
> 	"Mama, mama, many worlds       |	CSC/NASA-Langley
> 	 have come since I first       |	gates@cscsun1.larc.nasa.gov
>                left home."	       |              (128.155.42.32)
> 				       |        Phone:  804.865.1725
> -------------------------------------------------------------------------------
> DISCLAIMER: The comments/opinions contained within are my own and do not
>             necessarily represent the opinions of my employer(s).
> -------------------------------------------------------------------------------

>From the AVS User's Guide, pg 3-18, in "Starting AVS":

-parallel n

Sets the maximum nunmber of module processes that will attempt to execute in
parallel at any one time.  The default is 1 (no parallelization).  You should
set this figure intelligently for the system(s) you are running on.  If two
processors are available (a two-processor system, or a local and a remote
system) then this figure can reasonably be set to 2.

...

Modules must be in separate processes to execute in parallel.  Most modules
supplied with AVS are combined into a single executable that runs as a single
process ["mongo"?].  Thus, they will not run in parallel unless they are
divided into separate processes.  This may be done wholesale with the -separate
option (which may greatly increase memory utilization), or precisely using the
Network Editor's module group editing facility.

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



From dianne@doppler.ncsc.org (Dianne Reid)
Subject: AVS Network News IMAGES
Message-ID: <C0r9pA.H2t@doppler.ncsc.org>
Summary: Images available for last issue of AVS Network News
Organization: North Carolina Supercomputing Center
Date: Tue, 12 Jan 1993 19:19:57 GMT


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

		The IAC has just placed the images for articles
         	in AVS Network News, Vol1_Issue3, on their
		anonymous ftp site.  These images can be found
		in /avs_net_news/images.  Each image is listed
		by the volume and issue number, article author,
		and figure number (ie Vol1_Issue3_Flurchick_Fig1.x).

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

                   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 thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: Please fill out this IAC survey
Message-ID: <C0ro55.6qC@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Wed, 13 Jan 1993 00:31:52 GMT

Hi Folks,

You most likely have already received a copy of this survey
in your electronic mailbox - if so, please ignore this.  (Unless
of course you deleted that message... :)  Thanks!

-Steve

		International AVS Center User Survey

The IAC would like to thank everyone who has contributed with modules, 
magazine articles, technical support, etc. to a successful first 15 
months of operations.  We'd like to solicit your help in making the
next year even better.
 
Please take a few moments to fill out any or all of this survey, and
email it to us at avs@ncsc.org, or "snail mail" it to us at:

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

Results of the survey will be emailed out to everyone who responds. 
Many of the questions are multiple choice - just delete the ones that
don't apply.  Please try to respond by January 31, 1993 if possible.  
Thanks again for your help!

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

1.  My frequency of AVS use is approximately:

			DAILY
			WEEKLY
			MONTHLY
			OTHER:______________
			
-----------------------------------------------------------------------

2.  I've written approximately this many AVS modules:

			0
			1-5
			6-10
			11-20
			> 20
			
-----------------------------------------------------------------------

3.  The number of AVS modules I've downloaded from the IAC is about:

			0
			1-5
			6-10
			11-20
			21-100
			101-600
			All 600+ of them

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

4.  My use of the International AVS Center's anonymous ftp site is:

			FREQUENT   (at least 10 times so far)
			OCCASIONAL (less than 10 times so far)
			NEVER   

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

5.  Things I like about the ftp site are:




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

6.  Things I don't like about the ftp site are:



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

7.  I think the quality and portability of the modules on the 
    ftp site is:




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

8.  Suggestions for improving the ftp site are:




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

9.  Five AVS modules I would like to see contributed to the IAC's
    module repository are (list as many or as few as you would like):

    1.
    2.
    3.
    4.
    5.  

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

10. I'm a member of the International AVS Users Group

			YES
			NO

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

11. Suggestions for future International AVS User Group activities:




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

12. I have a subscription to AVS Network News, the IAC's quarterly
    magazine

			YES
			NO

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

13. If the answer to 12 is NO, what can the IAC do to make it YES?




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

14. Suggestions for future AVS Network News article features:




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

15. I attended SIGGRAPH '92

			YES
			NO

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

16. I attended VISUALIZATION '92

			YES
			NO

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

17. I attended AVS '92 at the International AVS Center.

			YES	
			NO	

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

18. If your answer to 17 was YES, what are your recommendations to
    make future AVS conferences even better?




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

19. I plan on attending AVS '93, to be held May 24-26, 1993 at 
    Disneyworld, Florida.

			YES	
			NO	
			UNDECIDED

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

20. If your answer to 19 is NO or UNDECIDED, what could the IAC do to 
    make it YES?




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

21. I use AVS on the following vendor platforms:

			Convex
			DEC
			IBM
			HP
			Kubota (Stardent)
			Sun
		 	OTHER (please list):______________	

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

22. I would like to receive a hard copy of the advance program for
    AVS '93 via "snail mail".  (This is also available electronically 
    via anonymous ftp to avs.ncsc.org if you would like to obtain this 
    immediately.)

			YES	
			NO

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

23. I would like to receive information on:

			Joining the International AVS User Group
			Subscribing to the AVS Network News magazine
			Joining IAC listserv mailing lists,
			    such as the one the automatically
			    emails every posting to comp.graphics.avs
			    to all subscribers
			Contributing an article for AVS Network News
			Submitting an AVS module to the ftp site
			Submitting a video to AVS '93's video theater

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

24. My feelings (if any) on the responsiveness of the IAC to 
    user inquiries are:




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

25. Please supply us with your complete contact information.  This
    information will only be used within the IAC for updating you
    on our ongoing activities to serve the scientific visualization 
    community.

            Name:
   Email address:
	   Phone:
	     FAX:
           Title:
    Organization:
  Street Address:
            City:
           State:
             Zip:
  	 Country:

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

Thanks again for your help on this survey !

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

                   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.  PLEASE SEND YOUR FILLED OUT
		   SURVEY TO THIS ADDRESS.

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

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 tbowman@nmsu.edu (Todd Wayne Bowman)
Subject: Object List
Message-ID: <1993Jan13.164706.20913@nmsu.edu>
Sender: usenet@nmsu.edu
Organization: New Mexico State University
Date: Wed, 13 Jan 1993 16:47:06 GMT
Lines: 14

Using the geometry viewer I am rendering flat objects, such as a mesh
with Z scale =0.  Some of these objects hide parts or all of other 
objects, depending which objects were sent to the geometry viewer first.
To change which objects are seen and which ones are hidden I have to 
delete the objects and manually send the objects to the geometry viewer
in the order that I want.  One of the remedies might be to re-order
the object list in the geometry viewer, but I can't find a way to
access that list.  Does someone know how to re-order the object list
or a different solution to my problem. 

Many thanks.
Todd Bowman
tbowman@nmsu.edu



From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Help co-scaling object and texture map?
Message-ID: <1993Jan13.113000.103@rcwusr>
Date: 13 Jan 93 11:30:00 -0600
Organization: BP Research, Cleveland, OH (USA)
Lines: 18

I have just begun to use Texture Mapping in the Geometry Viewer. Discovering
the direct type-in capability of scaling and positioning the texture
map was a joy.  The application is to scale and position an aerial photo onto a
topographic grid.

However, I find that there is apparently no way to scale the object and the
texture map TOGETHER!  One may scale the map to approximately the correct
position w.r.t. the object, then scale up the object for a better view of the
mis-positioning.  But going back to the Transform Map and type-in means that
the map is no longer to the same scale as the object!  And the hunt for the
right position starts all over again!!!

Does anyone know a trick to scale the two together using the type-ins?

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


From lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: AVS Network News IMAGES
Message-ID: <1993Jan13.093113.102@rcwusr>
Date: 13 Jan 93 09:31:13 -0600
References: <C0r9pA.H2t@doppler.ncsc.org>
Organization: BP Research, Cleveland, OH (USA)
Lines: 20

In article <C0r9pA.H2t@doppler.ncsc.org>, dianne@doppler.ncsc.org (Dianne Reid) writes:
> 
> ******************************************************************************
> 
> 		The IAC has just placed the images for articles
>          	in AVS Network News, Vol1_Issue3, on their
> 		anonymous ftp site.  These images can be found
> 		in /avs_net_news/images.  Each image is listed
> 		by the volume and issue number, article author,
> 		and figure number (ie Vol1_Issue3_Flurchick_Fig1.x).
> 
> 	
> ****************************************************************************

But that directory is not accessable to lowly users for FTP transfer!

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



From lipman@oasys.dt.navy.mil (Robert Lipman)
Newsgroups: comp.graphics.avs
Subject: Navy lab contacts for sciviz and vr
Message-ID: <29688@oasys.dt.navy.mil>
Date: 13 Jan 93 19:09:48 GMT
Reply-To: lipman@oasys.dt.navy.mil (Robert Lipman)
Organization: Carderock Division, NSWC, Bethesda, MD
Lines: 24


I am in the process of planning a Navy Lab Scientific Visualization
and Virtual Reality seminar.  The one day seminar will take place
in the spring and be held twice, once on the east coast and once on 
the west coast.  

I am looking for two pieces of information:

  1 - Contacts at all of the Navy labs for scientific visualization
      and virtual reality.

  2 - Participants at the Navy labs willing to make a presentation
      at the seminar.

If you can provide either piece of information, please respond by
e-mail to the address below.  Thanks.

Robert 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 Group, Code 2042    | Factsnet: (301) 227-5753
Bethesda, Maryland  20084-5000    | Phishnet: stockings@long.legs
                                   
The sixth sick shiek's sixth sheep's sick.


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: IGES / CATIA / Intergraph CAD to AVS ?
Message-ID: <C0v68o.JpI@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Thu, 14 Jan 1993 21:55:36 GMT

Hi Folks -  here's a quick posting from Ian:

 I am looking for any code, project, or company involved with
 building translators for
    1. IGES to AVS (geometry or UCD)
    2. CATIA to AVS (UCD)
    3. Intergraph CAD data

 Any information could be useful, please email reply to "ianc@avs.com"
 Sincerely,
 Ian Curington

--
-------------------------[ New Address ] -------------------------
Ian Curington            Advanced Visual Systems, Inc.
Tel: +44-372-471161      Unit C, Thames Mews, Portsmouth Road
Fax: +44-372-470506      Esher, Surrey, KT10 9AO,          UK
------------------------ [ Windsor Desk ] ------------------------



From larryg@avs.com (Larry Gelberg)
Newsgroups: comp.graphics.avs
Subject: Re: Help co-scaling object and texture map?
Message-ID: <1993Jan14.224823.22770@sol.ctr.columbia.edu>
Date: 14 Jan 93 22:48:23 GMT
References: <1993Jan13.113000.103@rcwusr>
Sender: nobody@ctr.columbia.edu
Organization: Advanced Visual Systems Inc.
Lines: 14
X-Newsreader: Tin 1.1 PL4
X-Posted-From: aurora.avs.com
NNTP-Posting-Host: sol.ctr.columbia.edu

One thing to do is check out Wes Bethel's module, TEXTURE MESH, 
available at the IAC.  It's great.  

As for scaling both things together, couldn't you just scale the top
level object or re-parent both obejcts together and scale the parent?
Or am I missing something?

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: How big a dataset have YOU used AVS with?
Sender: nobody@ctr.columbia.edu
Organization: Advanced Visual Systems Inc.
Date: Thu, 14 Jan 1993 23:01:25 GMT
X-Newsreader: Tin 1.1 PL4
Message-ID: <1993Jan14.230125.23238@sol.ctr.columbia.edu>
X-Posted-From: aurora.avs.com
NNTP-Posting-Host: sol.ctr.columbia.edu
Lines: 31

Nancy Rowe (of CRAY) and I were talking recently about whether or not
AVS on a Y-MP EL could handle a 1 Mega-cell UCD structure, and I 
responded that it probably depended on the complexity of the network, 
but to be safe, reduce the dataset size by using UCD CROP or 
UCD THRESHOLD.  

But it did raise the interesting question of how big a dataset HAS been
pushed through AVS.  If you think you've pushed some pretty big datasets
(both field and UCD) through AVS, could you please send me the relevant 
information and I'll publish the results back on this newsgroup?

I'd be interested in facts like:
	field or UCD (datatype, dimensions, etc.)
	computer type(s)
	physical memory on the computer(s)
	the type of operation & how long it took
	can I use your name in any published results?

To seed the pot, I have done volume rendering (gradient shaded tracer) 
on a Stellar GS with 128 MBytes memory on a 256x256x192 byte field 
(12.6 M), but I don't know how long it took, because I went home. (I
think it was 2.5 hours, but I'm not sure)

Thank you in advance,
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 Christopher Kalevi Nuuja <cn09+@andrew.cmu.edu>
Subject: AVS script files?
Lines: 8

Is it possible to run an avs session via a script (i.e. with no user
interaction needed)?  The script should start avs, load a network file,
start the network with the file-name argument given to the script, then
terminate AVS once the network has finished execution.

thanks

chris


From thorpe@doppler.ncsc.org (Steve Thorpe)
Subject: RE: AVS script files?
Message-ID: <C0vF37.4IH@doppler.ncsc.org>
Organization: North Carolina Supercomputing Center
Date: Fri, 15 Jan 1993 01:06:43 GMT

Chris recently asked:

> Is it possible to run an avs session via a script (i.e. with no user
> interaction needed)?  The script should start avs, load a network file,
> start the network with the file-name argument given to the script, then
> terminate AVS once the network has finished execution.

This struct me as deja vu all over again!

>From a previous posting to the net:

> : Hello,
> :
> :       Is it possible to start AVS up with NO display -- that is, I'd
> :       like AVS to run a script to generate some pictures without 
> :       actually displaying
> :       anything on the console.
> 
> Yes, run:
>         avs -nodisplay -cli
> Then, you can run scripts, etc. which produce images and use the
> WRITE IMAGE module (for example) to dump the images to disk.  With the
> AVS4 geometry viewer, you can get images directly out of the
> geom viewer for archiving.  With the Animator, you can dump an image
> sequence in an encoded format.
> 
> I hope this helps you,
> 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 =========================
> ------------------------------------------------------------------

----------------------------------------------------------------
   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 lakerb@rcwusr.bp.com
Newsgroups: comp.graphics.avs
Subject: Re: Help co-scaling object and texture map?
Message-ID: <1993Jan14.211438.106@rcwusr>
Date: 14 Jan 93 21:14:38 -0600
References: <1993Jan13.113000.103@rcwusr> <1993Jan14.224823.22770@sol.ctr.columbia.edu>
Organization: BP Research, Cleveland, OH (USA)
Lines: 36

In article <1993Jan14.224823.22770@sol.ctr.columbia.edu>, larryg@avs.com (Larry Gelberg) writes:
> One thing to do is check out Wes Bethel's module, TEXTURE MESH, 
> available at the IAC.  It's great.  

It is indeed a very handy tool.  However, I had some problems getting the
min/max type-ins into a range where the image would wrap the mesh.  The OTHER
problem is that there is no relative rotation between the mesh and the image
map.

Wes was kind enough to e-mail me, and in the ensuing exchange the idea of a 4x4
rotation/translation matrix came up.  When I know enough about modules and have
time, I may try that.  Meanwhile, the project gets reviewed on Monday!

> 
> As for scaling both things together, couldn't you just scale the top
> level object or re-parent both obejcts together and scale the parent?

I honestly  don't know how to "re-parent" both objects together.  In using the
Geometry Viewer texture map approach, it seems that I might accomplish the
relative moves between mesh and map via the type-ins if and only if I am
perfect in my Absolute/Relative choices and by calculating the product of the
Scalings.

> Or am I missing something?

No, I'm missing something!  Matching mesh and map is an art, not a science!

> 
> larryg
> 
Thank you for your suggestions!

Robin Lake
BP America Warrensville Research and Environmental Science Center
lake@rcwcl1.dnet.bp.com  [e-mail and News on separate systems]
216-581-5976


From harm@tessella.co.uk (Mark Harrison)
Newsgroups: comp.graphics.avs
Subject: Re: Postscript Printing
Message-ID: <C0uqow.9y0@tessella.co.uk>
Date: 14 Jan 93 16:19:43 GMT
References: <1993Jan13.113000.103@rcwusr>
Organization: Tessella Support Services plc, Abingdon, England
Lines: 25

Using the image to Postscript module from the bottom of the Geometry
Viewer is a fairly basic way of getting hardcopy output out of AVS.
It rarely gives a resolution which comes close to that of the target
printer.  The size of the geometry viewer window can be increased, 
which does help, but makes for massive files.

I've also tried the geom_save_postscript command from the CLI,
but for 3D rendering this seems to need to go back to the
renderer at the low resolution of the screen .....!

Does anyone know of or have a better module or work around to get
output at 300dpi on A4 paper??

Any ideas?

  ----------------------------------------------------------
  |    Mark Harrison                                       |
  |    Consultant                                          |
  |                                                        |
  |    Tessella Support Services plc                       |
  |    3 Vineyard Chambers, Abingdon, Oxon OX14 3PX, UK    |
  |    Telephone (+44) (0) 235 555511                      |
  |    Facsimile (+44) (0) 235 553301                      |
  |    Email:  harm@tessella.co.uk                         |
  ----------------------------------------------------------


From James Peters <peters@convex.COM>
Subject: Re: AVS script files?
Message-ID: <1993Jan15.231849.28236@convex.com>
Originator: peters@mikey.convex.com
Keywords: avs cli scripts
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: <C0vF37.4IH@doppler.ncsc.org>
Date: Fri, 15 Jan 1993 23:18:49 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: 35

In article <C0vF37.4IH@doppler.ncsc.org> thorpe@doppler.ncsc.org (Steve Thorpe) writes:
>> Is it possible to run an avs session via a script (i.e. with no user
>> interaction needed)?  The script should start avs, load a network file,
>> start the network with the file-name argument given to the script, then
>> terminate AVS once the network has finished execution.
>
>> :       Is it possible to start AVS up with NO display -- that is, I'd
>> :       like AVS to run a script to generate some pictures without 
>> :       actually displaying
>> :       anything on the console.
>> 
>> Yes, run:
>>         avs -nodisplay -cli
>> Then, you can run scripts, etc. which produce images and use the
>> WRITE IMAGE module (for example) to dump the images to disk.  With the
>> AVS4 geometry viewer, you can get images directly out of the
>> geom viewer for archiving.  With the Animator, you can dump an image
>> sequence in an encoded format.

also take a look at the test scripts in /usr/avs/test. to run them type
in /usr/avs/test/RUNME. RUNME is a bourne shell script which executes 
another bourne shell script, /usr/avs/test/autoexec, which runs the
cli scripts contained in /usr/avs/test/scripts.

an example extracted from /usr/avs/test/autoexec:
/usr/avs/bin/avs -path /usr/avs -cli "script -play /usr/avs/test/scripts\
	/script1 -quit -sleep 0"

performing the RUNME test is also a good sanity test of your avs install 
which i highly recommend. the cli scripts are also a tutorial for writing
your own cli's. i believe the standard issue documentation set has a 
chapter on cli and i know convexavs does.

regards,
james, peters@convex.com


From sl6rt@cc.usu.edu
Newsgroups: comp.graphics.avs
Subject: Info about .tar.Z files of objects.
Message-ID: <1993Jan15.190658.62778@cc.usu.edu>
Date: 15 Jan 93 19:06:58 MDT
Organization: Utah State University
Lines: 11

Hi !
I need information how to get data from .tar.Z
I  uncompressed & tar xvf I get .iob files .
Now how to proceed further.

My e-mail is  sl6rt@cc.usu.edu

Thanks.

Shah Shalin



From "danny hawrysio" <danny.hawrysio@canrem.com>
Subject: best way to describe jpeg
Message-ID: <199315.2587.1388@dosgate>
Reply-To: "danny hawrysio" <danny.hawrysio@canrem.com>
Organization: Canada Remote Systems
Distribution: comp
Date: 15 Jan 93 21:04:58 EST
Lines: 13


 On a graphic BBS I'm often asked how JPEG works in technical terms (and
yet they want it a fashion they can understand), I find any
explanation I come with is too long and hard to understand for the
average computer graphics user.  Has anybody come up with a brief but
yet all covering description of JPEG?
 The JPEG frequent question list is really no help since they avoid the
questions by recommending periodicals.

 Thanks in advance.
--
Canada Remote Systems  - Toronto, Ontario
World's Largest PCBOARD System - 416-629-7000/629-7044


From ehood@hydra.acs.uci.edu (Earl Hood)
Subject: Re: Postscript Printing
Nntp-Posting-Host: hydra.acs.uci.edu
Message-ID: <2B58CEA6.388@news.service.uci.edu>
Newsgroups: comp.graphics.avs
Organization: University of California, Irvine
Lines: 30
Date: 17 Jan 93 03:12:39 GMT
References: <1993Jan13.113000.103@rcwusr> <C0uqow.9y0@tessella.co.uk>

In article <C0uqow.9y0@tessella.co.uk> harm@tessella.co.uk (Mark Harrison) writes:
>Using the image to Postscript module from the bottom of the Geometry
>Viewer is a fairly basic way of getting hardcopy output out of AVS.
>It rarely gives a resolution which comes close to that of the target
>printer.  The size of the geometry viewer window can be increased, 
>which does help, but makes for massive files.
>
>I've also tried the geom_save_postscript command from the CLI,
>but for 3D rendering this seems to need to go back to the
>renderer at the low resolution of the screen .....!
>
>Does anyone know of or have a better module or work around to get
>output at 300dpi on A4 paper??
>
>Any ideas?

The ideal situation would have a module that directly converts AVS
geometries to Postscript geometries.  Therefore, you are only limited
to the resolution of your printer.

However, I'm not all that familiar with Postscript, so I do not the
difficulties of writing such module.  Also, no documentation is
provided in interpreting AVS geometry edit lists so some outside
ambitious source cannot look into the problem on their own :-).

--
-------------------------------------------------------------------------
    Earl Hood           |   Advanced Scientific Computing: OAC
    ehood@uci.edu       |   University of California: Irvine
    ehood@UCI.BITNET    |   Irvine, CA  92717


From larkin@v2.cgu.mcc.ac.uk (Steve Larkin)
Newsgroups: comp.graphics.avs
Subject: Advanced AVS Course for UK Academics (14/4/93)
Message-ID: <1993Jan18.082347.1@v2.cgu.mcc.ac.uk>
Date: 18 Jan 93 08:23:47 GMT
Sender: news@nessie.mcc.ac.uk (Usenet News System)
Organization: Manchester Computing Centre CGU
Lines: 52


                             Advanced AVS Course
                             =================== 
 
                            Computer Graphics Unit
                          Manchester Computing Centre

                          Wednesday 14th April 1993

 There will be an one day advanced AVS course held at the University of
 Manchester on Wednesday 14th April 1993.

 The course will be aimed at users who are already familiar with the
 Application Visualisation System (AVS) and wish to extend their use
 by writing modules for the system. The course will cover the various
 AVS data types in detail and will provide information on how to write
 modules.  All practical programming on the course will be carried out
 using C.

 The course is open to all UK academics and no charge will be made.
 It will start at 9.30 and finish at about 4.30 with the local
 arrangements and travel information being forwarded to each attendee
 nearer the date.

 As the course will involve practical sessions using AVS throughout
 the day the number of attendees will be limited and places allocated
 on a first come first served basis.

 Important
 ---------

 Please note that the course is for one day only so it is important that
 attendees are already familiar with the basic use of the AVS system and 
 the C programming language as these will not be covered.

 Please complete the following sections or email the relevant details 
 to:
            Ms Mary McDerby
            Manchester Computing Centre
            University of Manchester
            Manchester M13 9PL
            Tel 061 275 6095
            mcderby@uk.ac.mcc.cgu

 Name:     _________________________________________________________________
 Institute:_________________________________________________________________
 Address:  _________________________________________________________________
           _________________________________________________________________
           _________________________________________________________________
           _________________________________________________________________
 Postcode: _________________________  Email:   _____________________________
 Tel:      _________________________  Fax:     _____________________________


From thalli@piis10.joanneum.ac.at (Georg Thallinger (IIS))
Newsgroups: comp.graphics.avs
Subject: Problems when profiling avs-modules
Date: 20 Jan 1993 18:19:30 GMT
Organization: Joanneum Research, Graz, Austria
Lines: 40
Distribution: world
Message-ID: <1jk53iINN1k2@fstgds15.tu-graz.ac.at>
Reply-To: thalli@piis10.joanneum.ac.at (Georg Thallinger (IIS))
NNTP-Posting-Host: piis10.joanneum.ac.at
Keywords: profiling modules


Hi netters,

  Currently I am trying to profile one of my modules.

  But none of the profile techniques described in the prof manpage works.

  The pc-sampling probably doesnt work, because avs uses not the standard 
  startup-code and so the code installed by the -p option doesn't come in
  effect.

  What the problem with basic-block profiling is, I don't know. The fact is
  that no profiling output is produced.


  So anybody outthere has any hints ??

  All help is appreciated,

  thanks

  Georg

--
    _--_     _--_             
   (    )~~~(    )
    \           /		
     (  ' _ `  )		Georg THALLINGER                    
      \       /			Institute for Information Systems   
    .__( `-' )  ___		JOANNEUM RESEARCH GRAZ /  AUSTRIA   
   /   /`---'`-'   \
  /   /          ._/   __
/'   /.-----\___/     /  )
\___//          `----'   !	e-mail: thallinger@pbox.joanneum.ac.at  
     \            ______/	        thallinger@joanneum.ada.at    
      `--_____----'		phone:  (++43/316) 8020-240           
       \    /			fax:	(++43/316) 8020-181
        !   !
        /  /__
       (______)


From wes@ux6.lbl.gov (Wes Bethel)
Newsgroups: comp.graphics.avs
Subject: Re: Problems when profiling avs-modules
Date: 20 Jan 1993 21:35:38 GMT
Organization: Lawrence Berkeley Laboratory
Lines: 21
Message-ID: <1jkgjaINNe3t@overload.lbl.gov>
References: <1jk53iINN1k2@fstgds15.tu-graz.ac.at>
Reply-To: wes@ux6.lbl.gov (Wes Bethel)
NNTP-Posting-Host: ux6.lbl.gov
Keywords: profiling modules

In article <1jk53iINN1k2@fstgds15.tu-graz.ac.at> thalli@piis10.joanneum.ac.at (Georg Thallinger (IIS)) writes:
#
#  Currently I am trying to profile one of my modules.
#
#  But none of the profile techniques described in the prof manpage works.
#...
#  What the problem with basic-block profiling is, I don't know. The fact is
#  that no profiling output is produced.
#

In order for profile output to be produced, your process has to get
started, execute, then finish.  When you include a module in a network,
the process starts, then executes when it gets data, etc.  It doesn't
finish until you either hammer it or clear the network.  After
the process terminates, then you can run "prof" to get the profile
analysis.

The above is true for Sun, SGI and KPC systems (the ones I've used.)

wes



From cabral@lll-crg.llnl.gov (Brian Cabral)
Newsgroups: comp.graphics.avs
Subject: Widget control
Message-ID: <147125@lll-winken.LLNL.GOV>
Date: 21 Jan 93 19:05:30 GMT
Sender: usenet@lll-winken.LLNL.GOV
Organization: Lawrence Livermore National Laboratory
Lines: 15
Nntp-Posting-Host: lll-crg.llnl.gov


   I am interested in creating a complex AVS widget panel. Specifically, I
want to have a number of widgets popup as function of the boolean state
of other widgets on the panel. The only way I see of performing this task
is to maintain state in the main body of a co-routine and control the
creation and deletion of the contingent widgets. Does anyone know
of a better way of doing this or if AVS has a built in facility for handling
this sort of contingent widget control? I'll listen to the news group
for the answer. Thanks.


				Brian Cabral (B.c.)
				Lawrence Livermore National Laboratory
				Center for Advanced Visualization



From hayes%valkris@hac2arpa.hac.com (Brian Hayes 74-35 x65129)
Newsgroups: comp.graphics.avs
Subject: AVScorout_event_wait
Message-ID: <24829@hacgate.SCG.HAC.COM>
Date: 22 Jan 93 02:14:38 GMT
Sender: news@hacgate.SCG.HAC.COM
Organization: Hughes Aircraft Company, EDSG
Lines: 12
Originator: hayes@valkris

Has anyone been succesful with the AVScorout_event_wait() library 
routine?

I'm using it with sockets and I've noticed that the routine seems to 
ignore any timeout value passed to it.

Brian Hayes
hayes@hac2arpa.hac.com
-- 
| Brian Hayes		| "Know you analysis and design methodology, |
| (310) 616-5129	|  its strengths and weaknesses!" -B.S.Hayes |
| hayes@hac2arpa.hac.com| <standard disclaimer here>                 |


From hayes%valkris@hac2arpa.hac.com (Brian Hayes 74-35 x65129)
Newsgroups: comp.graphics.avs
Subject: Rendering of flat complex geometries
Message-ID: <24830@hacgate.SCG.HAC.COM>
Date: 22 Jan 93 02:28:25 GMT
Sender: news@hacgate.SCG.HAC.COM
Organization: Hughes Aircraft Company, EDSG
Lines: 34
Originator: hayes@valkris

I'm having the geometry viewer display a GEOM_POLYHEDRON geometry of a
double headed arrow:
  /      \
 /|______|\
/          \       (wow, with ascii graphics like this, why use AVS?;^)
\  ______  /
 \|      |/
  \      /

When I set the render mode to "lines", I observe the expected result in 
the geometry viewer window: I see an outline of a double headed arrow.

HOWEVER, when I set the render mode to "no_light", I don't get a solid 
double headed arrow like I want.  I get something like this:
           
  /     /\
 /|___ /  \
/          \ 
\    ____  /
 \  /    |/
  \/     /
  

How can I get a solid double headed arrow like I want?  I've tried other
rendering modes but I don't get a solid double headed arrow.

Thanks.
Brian Hayes
hayes@hac2arpa.hac.com

-- 
| Brian Hayes		| "Know you analysis and design methodology, |
| (310) 616-5129	|  its strengths and weaknesses!" -B.S.Hayes |
| hayes@hac2arpa.hac.com| <standard disclaimer here>                 |


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - read_netcdf_2
Message-ID: <C19x44.380@doppler.ncsc.org>
Sender: myerson@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Fri, 22 Jan 1993 21:02:27 GMT

Name        : read_netcdf_2   Version      : 1.000     Mod Number : 1564 
Author      : Wright, E.L., U.S Geological Survey
Submitted   : 01/22/93        Last Updated : 01/22/93  Language   : C        
Ported to   :
Description : This module reads data from netCDF files into uniform or
              rectilinear AVS fields. The data variables must be of
              dimension 8 or less. Variables that are one-dimensional
              and have the same name as a dimension name are assumed to be
              coordinate variables. Coordinate variables, if present,
              define the coordinate values along each axis of the data
              space. A maximum of 8 data variables that are NOT coordinate
              variables may be present.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From novak@ninja.nrl.navy.mil (Larry Novak)
Subject: Large Number of Objects
Message-ID: <C19wz9.ErM@ra.nrl.navy.mil>
Followup-To: lnovak@cen.com
Sender: L. Novak
Organization: TEW Division, Naval Research Lab
Distribution: usa
Date: Fri, 22 Jan 1993 20:59:32 GMT
Expires: Fri, 5 Feb 1993 05:00:00 GMT
Lines: 13

We are running AVS on a Convex. We have an application in which we want
to be able to pick any of a large number (80,000) of objects. When we
try to define a geometry with 80,000 named objects, AVS begins to
gobble memory and runs out of memory long before it completes the
definition of the geometry. Using the same geometry without naming the
objects is no problem.  Is this unique to the Convex implementation or
is it an AVS issue? Is there any workaround?

Thanks,

Larry




From hayes@valkris.aero.org (Brian Hayes 74-35 x65129)
Newsgroups: comp.graphics.avs
Subject: Re: Widget control
Message-ID: <24839@hacgate.SCG.HAC.COM>
Date: 22 Jan 93 21:17:40 GMT
References: <147125@lll-winken.LLNL.GOV>
Sender: news@hacgate.SCG.HAC.COM
Organization: Hughes Aircraft Company, EDSG
Lines: 74

In article <147125@lll-winken.LLNL.GOV> cabral@lll-crg.llnl.gov (Brian Cabral) writes:
>
>   I am interested in creating a complex AVS widget panel. Specifically, I
>want to have a number of widgets popup as function of the boolean state
>of other widgets on the panel. The only way I see of performing this task
>is to maintain state in the main body of a co-routine and control the
>creation and deletion of the contingent widgets. Does anyone know
>of a better way of doing this or if AVS has a built in facility for handling
>this sort of contingent widget control? I'll listen to the news group
>for the answer. Thanks.

Brian:
   What's the problem with your approach?  Sounds okay to me.  I can do
   you one better:  I determine which panel to display in seperate 
   executable written in Ada.  
   But, to provide you with another solution, I _suspect_ that you may be
   able to describe the state dependent panels in a network file(s)
   where the panels may may share common widgets (parameters).  
   The problem with this is
     a) AVS may not allow you to share common widgets across panels and
     b) you'll still have to maintain the state.
   As an alternative suggestion, I suggest you put unique widgets on
   each state dependent panel.  You'll have to name and access each
   widget with a unique name.  For example "HELP Panel 1" and "HELP
   Panel 2." In this example, I want to have the buttons both labeled 
   "HELP"...not "Help Panel 1" and "Help Panel 2." code excerpts are as
   follows:

   int example_desc ()
   {
      ...
      param1 = AVSadd_parameter("Help Panel 1", "oneshot", 0, 0, 1);
      param1 = AVSadd_parameter_prop (param1, "title", "string",
      "HELP");
      AVSconnect_widget (param1, "oneshot");
      param2 = AVSadd_parameter("Help Panel 2", "oneshot", 0, 0, 1);
      param2 = AVSadd_parameter_prop (param2, "title", "string",
      "HELP");
      AVSconnect_widget (param2, "oneshot");
     ...
   }

   int example_comp (...Help_Panel_1, Help_Panel_2, ...)
   ...
   {
      ...
      if (AVSparameter_changed ("Help Panel 1")) {
	/* Some action...which just so happens to be state dependent
	since the help buttons appear on different panels! :-) */
      } else if (AVSparameter_changed ("Help Panel 2")) {
      ...
      } ...
      ...
   }

   Since the panels describe the state by providing the user with the 
   control widgets (and other widgets) applicable only to that state, 
   state dependent action can be obtained without explicity maintaining
   a state.  We retitle the buttons so that the user does not see that 
   he/she/otherwise is manipulating a parameter named differently than 
   it is titled.

   The drawback to this approach is that you have lots of widgets.  For
   example if you have 5 panels that share 5 commonly titled oneshots, 
   you need to define 25 uniquely named parameters and have 25 if-AVS-
   parameter-changed statements (thank goodness for copy-cut-and-replace
   =:^)

   Brian Hayes

-- 
| Brian Hayes		| "Know you analysis and design methodology, |
| (310) 616-5129	|  its strengths and weaknesses!" -B.S.Hayes |
| hayes@hac2arpa.hac.com| <standard disclaimer here>                 |


From hayes@valkris.aero.org (Brian Hayes 74-35 x65129)
Newsgroups: comp.graphics.avs
Subject: Re: AVScorout_event_wait
Message-ID: <24841@hacgate.SCG.HAC.COM>
Date: 22 Jan 93 21:26:28 GMT
References: <24829@hacgate.SCG.HAC.COM>
Sender: news@hacgate.SCG.HAC.COM
Organization: Hughes Aircraft Company, EDSG
Lines: 26

In article <24829@hacgate.SCG.HAC.COM> hayes%valkris@hac2arpa.hac.com (Brian Hayes 74-35 x65129) writes:
>Has anyone been succesful with the AVScorout_event_wait() library 
>routine?
>
>I'm using it with sockets and I've noticed that the routine seems to 
>ignore any timeout value passed to it.
>
We'll, I've found the answer to my problem.  Thank goodness for undocumented 
"features" in the AVS manuals: otherwise, debugging would be such a bore=;^).

On DEC 5000 ULTRIX (and maybe other machines too):
A coroutine module must operate synchronously (AVScorout_set_sync(1)) so 
that AVScorout_event_wait() will function properly with respect to timeout.
If the coroutine module is operating asynchronously, it will return 
immediately regardless of the timeout value (NULL or non-NULL).

GRRRR. (Release product, allow users to find bugs, announce upgrade program).





-- 
| Brian Hayes		| "Know you analysis and design methodology, |
| (310) 616-5129	|  its strengths and weaknesses!" -B.S.Hayes |
| hayes@hac2arpa.hac.com| <standard disclaimer here>                 |


From larryg@avs.com (Larry Gelberg)
Subject: Big Dataset Survey Results
Sender: nobody@ctr.columbia.edu
Organization: Advanced Visual Systems Inc.
Date: Mon, 25 Jan 1993 19:12:36 GMT
X-Newsreader: Tin 1.1 PL4
Message-ID: <1993Jan25.191236.19800@sol.ctr.columbia.edu>
X-Posted-From: aurora.avs.com
NNTP-Posting-Host: sol.ctr.columbia.edu
Lines: 209

Here are the results of the Big Dataset Survey I queried the network
about several weeks ago.  You may remember that I asked the question
"What is the biggest dataset YOU have ever pushed through AVS?" The
numbers are interesting for several reasons: the sizes of the datasets
presented, and the variety of techniques for which AVS is being used.

Here is a summary table followed by the brief descriptions everyone
sent me.  Please continue to send me this information - I will
continue to compile it and present the results at the User's
Group Meeting in May! 

Fields:
	67,108,864 Bytes - Marc Kessler, U of Mich. Hospital
			 - (Anonymous)
	60,000,000 Bytes - Ronald J.G. Goossens, Stanford University
	51,800,000 Bytes - Wade K. Smith, Convex Computer Corporation
	24,576,000 Bytes - Jamie Pelagatti, Harvard Medical School
	20,961,952 Bytes - Ron Karwoski, BIR, Mayo Foundation
	12,582,912 Bytes - Larry Gelberg, Advanced Visual Systems Inc.
	 8,388,608 Bytes - Pierre MARTEL, C N E T PAA/TIM/SSI          
	 3,000,000 Bytes - Rob Lake, BP Research
	   120,000 Bytes - Andrew Rhodes, MIT

UCD: 
	   262,144 cells - Alexander Yarmarkovich, Advanced Visual Systems Inc.
	   100,000 cells - Peter Yerburgh, Intera
	    16,405 cells - John Sheehan, Advanced Visual Systems Inc.

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

67,108,864 Bytes
	256x256x128 doubles - 3D convolutions
	Stellar GS with 128M
	Marc Kessler, University of Michigan Hospital

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

67,108,864 Bytes 

	I've done volume rendering of a 512x256x128 uniform integer volume 
	on a XXXXX with XXXXX, and my volume renderer runs 
	in about XXXXX seconds.  At this point the results are too
	preliminary to be publishable (since I just wrote the renderer).
	But I'll let you know when the results are publishable 
	(probably about the time we release the module).

	XXXXX, XXXXX (wishes to remain anonymous until results are
	officially published)
----------------------------------------------------------------------
60,000,000 Bytes

We have a 3D semiconductor simulation code that models the electrical
behavior of submicron transistors. It solves the Poisson equation and
two transport equations. The output consists of electrical potential,
electron and hole concentration, electron and hole current density at
each node in the computational mesh, i.e. 9 double-precision
floats/grid point. The code is called STRIDE and uses rectangular
blocks as mesh elements.

We are involved in a number of high-performance computing efforts and
have been running STRIDE on an in-house Intel hypercube. Early 1992 we
got access to the Intel DELTA machine at Caltech in Pasadena, CA.
There, we were able to analyse a full series of electrical biases (13
different solutions) on a grid of 5 million points (approximately
150x150x210). Any scalar solution variable represented 20Mb per bias
point, vector variables are 60Mb per bias point. The total solution
file contained 13x9x4x5M bytes = 2.34 Gbyte.

These data were transferred to the National Center for Computational
Electronics at the University of Illinois. The most interesting visual
corresponded to a 3D streamline rendition of hole current for one of
the bias points, with a color contour map of the magnitude of hole
current for the central plane. That data set in itself contained 60
Mbyte of data.

I think - but am not sure - that the visualization was done on a
Convex machine with 2Gbyte of main memory. It is one of Convex's
high-end versions. The streamline visualization took about 16 hours of
CPU time. The visualization was done "distributed" in the sense that
we had hooked up to display windows to the geometry viewer, one
locally at Illinois, the other at Stanford.

The simulation and visualization received an honorable mention in the
Intel Grand Challenge Award, which was organized last year to
commemorate the first anniversary of the DELTA machine.

Ronald J.G. Goossens			
Integrated Circuits Lab, Stanford University

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

51,800,000 Bytes
	UCI cell data set (courtesy of D.B. Menzel, et. al.)
	360x360x100 float field (51.8Mb) converted to byte (12.9Mb)
	Convex C220 (2 heads)
	512Mb physical memory
	gradient shade 144 seconds
	tracer 14 seconds
	isosurface plus render (grew to 800Mb) 30 minutes
	work done by Duane Gustavus at Convex

	Wade K. Smith, Convex Computer Corporation

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

24,576,000 Bytes
	We have sent 320x320x60 integer (i.e 4 byte) data sets through
	AVS networks. These are CT data sets typically. We've used a
	Stardent GS2000 with 128 Mb of memory. 	Usually, we read it
	then slice it or byte-reduce it before rendering it.  Just
	reading it into a field did not take more than a few minutes.
	It will also flow through the pipes with a couple of minutes too.

	Jamie Pelagatti, Harvard Medical School

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

20,961,952 Bytes
	I have loaded a 20 Mb file, 226 x 272 x 341, (byte field) on a
	HP 9000/720 with 64 Mb of memory. The data is a CT scan of the 
	head which we interpolated to make cubic. After the initial
	reading in of the data I am able to render and display the
	data in ~5 seconds. Render types include: Voxel Gradient
	Shading, Maximum Intensity Projections, and Summed
	Projections. Threshold values and three rotation angles (x, y,
	z) can be set by the user. 

	Read ANALYZE->ANALYZE Render->Colorizer->Display Image

	Read ANALYZE and ANALYZE Render are our own AVS Modules which
	have limited ANALYZE functionality. 

	I'm sure we can go larger, I don't have any larger datasets handy
	to find the limit.


	Ron Karwoski                   Internet:   rak@bru.mayo.edu
	Biomedical Imaging Resource, Mayo Foundation
----------------------------------------------------------------------

12,582,912 Bytes
	256 x 256 x 192 byte volume
	Volume Rendering using TRACER and COMP SHADE
	Stellar GS 2000 w/ 128 MBytes 
	
	Larry Gelberg, Advanced Visual Systems
----------------------------------------------------------------------

8,388,608 Bytes
	It takes near 3 minutes for a 3D float field with color 524288
	particules with a "scatter dot" module.

524,288 Bytes
	It takes near 2 secondes for a 2D float field 128x1024 throught
	the "field to mesh" module.

500,000 Bytes
	It takes near 5 secondes for a 3D float field 50x50x50 with an
	"isosurface" module.

	and, of course, all these modules are connected out a "render geometry".
	I'm using AVS on a Stardent 800 with 32 Mbytes of memory.

	Pierre MARTEL, 	C N E T   PAA/TIM/SSI          

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

3,000,000 Bytes  (1000 * 250 * 4 (sizeof float) * 3 ([XYZ]))
 	Field 2-D, some 3-D  Fields up to 1000 by 250 or so.  Now using
        3-D topo map about 175 by 150, rendered with 608 by 865 image.
	KPC Titan 3000VS dualprocessor - 128MB
	At 60,000 to 100,000 triangles in the generated geometry, rotation
	and scaling are at the limit of usability.  3-D topo map quite
	usable interactively. 

	Rob Lake, BP Research

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

120,000 bytes (10000 * 4 (sizeof float) * 3 ([XYZ])
	We were displaying surfaces (as geometries) comprised of 10,000 points
	at a pretty good speed.  For reasons I won't get into, we actually created
	text files N x 10000 lines long with N surfaces in them.  The module that
	reads the files used a direct positioning which worked nearly instantly.
	We did find that jumping up to 15,000 points crossed a threshold and led
	to big slowdowns -- likely we ran out of memory and it had to swap.

	Our system is a DECstation 5000/200 with Ultrix 4.2, DECwindows, and AVS 4.0.
	The system has 40 Meg RAM, 160 Meg swap space. 

	Andrew Rhodes, MIT

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

UCD:

262,144 cells   Alexander Yarmarkovich, Advanced Visual Systems Inc.
		(hydrogen.dat converted to cells for testing purposes)
100,000 cells	Peter Yerburgh, Intera
 16,405 cells   John Sheehan, Advanced Visual Systems Inc.

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


--
=== 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 eec@po.CWRU.Edu (Edward E. Conroy)
Newsgroups: comp.graphics.avs
Subject: reading targa files
Date: 26 Jan 1993 07:49:23 GMT
Organization: Case Western Reserve University, Cleveland, Ohio (USA)
Lines: 13
Message-ID: <1k2qe3INNbdo@usenet.INS.CWRU.Edu>
NNTP-Posting-Host: thor.ins.cwru.edu


I have a number of image files in targa format that I would
like to read into AVS directly. I'm running AVS under ULTRIX, and
unfortunately the READANYIMAGE module from NCSC has a bug in it
that causes it not to work under ULTRIX, so that's out. Right now,
I have a GIF reader and I do a tga to gif conversion on another
machine. If anyone knows of any tga viewers, or even just a
tga to gif conversion programme that works under ULTRIX, I'd
appreciate any info you could give me.
Thanks.

-ed conroy
eec@po.cwru.edu


From peters@convex.com (James Peters)
Subject: Re: Large Number of Objects
Message-ID: <1993Jan26.144730.20046@convex.com>
Keywords: avs convexavs geom objects large
Sender: usenet@convex.com (news access account)
Nntp-Posting-Host: mikey.convex.com
Organization: CONVEX Computer Corporation, Richardson, Tx., USA
Date: Tue, 26 Jan 1993 14:47:30 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: 43


larry novak posted:
>We are running AVS on a Convex. We have an application in which we want
>to be able to pick any of a large number (80,000) of objects. When we
>try to define a geometry with 80,000 named objects, AVS begins to
>gobble memory and runs out of memory long before it completes the
>definition of the geometry. Using the same geometry without naming the
>objects is no problem.  Is this unique to the Convex implementation or
>is it an AVS issue? Is there any workaround?


hello larry,

this is a generic avs problem. the OBJ layer stores objects in a linked 
list, and each object has a large memory and access overhead associated
with it, reference /usr/avs/include/obj.h.  

think about the performance of a linked list data structure being traversed
on both sides of the geometry pipeline when the list gets on the order of 80k
nodes. also of note is that avs does not keep an end pointer so to add each
new node, object, the entire list has to be traversed to reach the end. 
this is why atom (i.e. sphere) picking is non trivial with avs not just
convexavs.

the workaround is to put all of the spheres into single object, minimizing
the object storage overhead, and use the GEOM functions for setting upstream
pick correlations via GEOMedit_selection_mode and GEOMadd_*_{prim,vertex}-
_data. reference chapter 10 Geometries page 328 and chapter 11 Geometry
routines pages 351, 352 and 374.

you then have to write a pick handler which gets the vertex id and correlates
this with a particular sphere. if you want to change color or remove the 
sphere, you have to regenerate the object with all the spheres as before, 
with the desired changes to the particular picked one. if you want to move
the picked sphere then you need to delete the previous object, regenerate 
all the previous spheres minus the picked one, and then create a new object
with just that picked sphere.  this can be applied to any type of geometry,
not just spheres.  

if you have any more questions free to send some email.

take care,
james, peters@convex.com


From wayne@concave.cs.wits.ac.za (Wayne Smith)
Subject: Crash - Display Pixmap
Message-ID: <1993Jan26.150213.13194@shannon.ee.wits.ac.za>
Sender: news@shannon.ee.wits.ac.za
Organization: Wits Univ. Computer Science Dept.
Date: Tue, 26 Jan 1993 15:02:13 GMT
Lines: 26

Hi,

I have the following problem when using ConvexAVS 3.0 with an Iris
Indigo workstation as the graphics display. This problem has only started to
appear recently when doing things that used to work fine previously.

When I try do use the store frames feature of the Display Pixmap Module
the program crashes with the following error:

X Error of failed request:  BadMatch (invalid parameter attributes)
  Major opcode of failed request:  62 (X_CopyArea) Serial number of
  failed request:  28456 Current serial number in output stream:  28471

When I use the Force X-Renderer option I do not experience it at all,
but I used to be able to use it with rglserver.

Where could my problem be lying : with the Convex side or the Indigo?
What can I do to find out? What could have caused it to suddenly start
crashing? 

Any answers or suggestions will be appreciated.

Regards,
Wayne




From James Peters <peters@convex.COM>
Subject: Re: Crash - Display Pixmap
Message-ID: <1993Jan26.190422.2686@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: <1993Jan26.150213.13194@shannon.ee.wits.ac.za>
Date: Tue, 26 Jan 1993 19:04:22 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: 31

In article <1993Jan26.150213.13194@shannon.ee.wits.ac.za> wayne@concave.cs.wits.ac.za (Wayne Smith) writes:
>I have the following problem when using ConvexAVS 3.0 with an Iris
>Indigo workstation as the graphics display. This problem has only started to
>appear recently when doing things that used to work fine previously.
>
>When I try do use the store frames feature of the Display Pixmap Module
>the program crashes with the following error:
>
>X Error of failed request:  BadMatch (invalid parameter attributes)
>  Major opcode of failed request:  62 (X_CopyArea) Serial number of
>  failed request:  28456 Current serial number in output stream:  28471
>
>When I use the Force X-Renderer option I do not experience it at all,
>but I used to be able to use it with rglserver.
>
>Where could my problem be lying : with the Convex side or the Indigo?
>What can I do to find out? What could have caused it to suddenly start
>crashing? 
>
>Any answers or suggestions will be appreciated.

hello wayne,

i have seen the aforementioned error when using the gl rendering with
a true color visual. you may want to experiment with using different
visual ids. this can be done by setting an environment variable or
by an appropriate .avsrc entry, reference man avs. to figure out the
possible visuals use the xdpyinfo client.

regards,
james, peters@convex.com


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: <2B65E544.25348@news.service.uci.edu>
Newsgroups: comp.graphics.visualization,comp.graphics.avs,comp.graphics.explorer,comp.edu,sci.edu,misc.education
Organization: University of California, Irvine
Lines: 240
Date: 27 Jan 93 01:28:37 GMT
Followup-To: IFIPconf@uci.edu

Conference Announcement (2nd posting).  
Note 17 February 1993 deadline (revised) for requesting invitation to attend.

                     IFIP WG3.2 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 February 17, 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 February 17, 1993.  The outline of such a request,
       suitable for e-mail submission, is enclosed.
On the basis of materials submitted by February 17, 1993, invitations for
participation and for paper submission will be sent out by March 10.
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 ICH561@DJUKFA11.BITNET (Astrid Kuhr)
Newsgroups: comp.graphics.avs
Subject: brick-module for ucd
Message-ID: <93027.101829ICH561@DJUKFA11.BITNET>
Date: 27 Jan 93 09:18:29 GMT
Organization: Forschungszentrum Juelich
Lines: 14


Hello all together!

I am looking for an brick-module for ucd-data.
Does anybody have something in this direction?
Is there perhaps something in the AVS-catalog?
Any help is welcome.

Thanx,

Astrid Kuhr

email: ich561@zam001.zam.kfa-juelich.de  (internet) or
       ich561@djukfa11                   (bitnet)


From larkin@v2.cgu.mcc.ac.uk (Steve Larkin)
Newsgroups: comp.graphics.avs
Subject: UK Introductory Course for AVS (12th May 1993)
Message-ID: <1993Jan27.155431.1@v2.cgu.mcc.ac.uk>
Date: 27 Jan 93 15:54:31 GMT
Sender: news@nessie.mcc.ac.uk (Usenet News System)
Organization: Manchester Computing Centre CGU
Lines: 52


                     An Introductory Course to AVS
                     =============================

    There will be an one day introductory  course to AVS held at the
    University of Manchester on Wednesday 12th May 1993.  It will be
    aimed at the user with little or no experience of AVS and includes
    the following topics:

       o Importing data into AVS

       o Building and using networks in AVS

       o Customising AVS

    The course will not include more advanced topics such as module
    writing but these will be covered in an advanced course.  The
    introductory course will however provide a user with the
    necessary AVS pre-requisites to attend the advanced course. 

    The course is open to all UK academics and no charge will be made.
    It will start at 9.30 and finish at about 4.30 with the local
    arrangements and travel information being forwarded to each attendee
    nearer the date.

    As the course will involve practical sessions using AVS throughout
    the day the number of attendees will be limited and places allocated
    on a first come first served basis.

    Please complete the following sections or email the relevant details to:

            Ms Mary McDerby
            Manchester Computing Centre
            University of Manchester
            Manchester M13 9PL
            Tel 061 275 6095
            mcderby@uk.ac.mcc.cgu

   Name:      _______________________________________________________________
   Institute: _______________________________________________________________
   Address:   _______________________________________________________________
              _______________________________________________________________
              _______________________________________________________________
              _______________________________________________________________

   Postcode: _________________________  Email:   _________________________
   Tel:      _________________________  Fax:     _________________________

   Dietry requirements : ____________________________________________________

   Do you require accommodation information: (YES/NO)
   


From jlee@cs.ulowell.edu (John Peter Lee)
Subject: Visualization '93 -> Call for Participation II
Message-ID: <C1J18r.4tF@ulowell.ulowell.edu>
Sender: usenet@ulowell.ulowell.edu (News manager - ulowell)
Organization: University of Massachusetts at Lowell Computer Science
Date: Wed, 27 Jan 1993 19:10:03 GMT
Lines: 276

	***************   Call For Participation   *****************


			    Visualization '93


			   October 25-29, 1993
			     Red Lion Hotel
			  San Jose, California


			      Sponsored by: 

	IEEE Computer Society Technical Committee on Computer Graphics
		    In Cooperation with ACM SIGGRAPH




   Scientific visualization is an important research frontier shared by a
variety of computational science and engineering fields. Visualization work
is both interdisciplinary and a field in its own right.  This conference 
focuses on interdisciplinary methods and supports collaboration among the 
developers and users of visualization methods across all of science, 
engineering, and commerce.
				  ******



		  Paper Submissions (due March 31, 1993)

	Papers are solicited that present research results related to all 
	areas of visualization, including visualization tools and 
	methods, and discipline-specific applications. Original papers 
	should be limited to 5,000 words and may be accompanied by 
	NTSC video. Please submit 5 copies of all materials. For Paper 
	submission instructions, contact Papers Co-Chair:

			     Gregory M. Nielson	
			  Arizona State University
		         Rural Rd and University Ave
			    Tempe, AZ 85287-5406
		         nielson@enuxva.eas.asu.edu
			       602-965-2785    


				  ******



		     Panel Proposals (due March 31, 1993)

	Panels should address the most important issues in 
	visualization today, with emphasis on research, applications, 
	systems and results.  Panelists should be experts in their
	field who discuss the challenges of visualization.  Summaries
	of panelists' position statements will appear in the 
	proceedings.  For Panel proposal instructions, contact Panels 
	Co-Chair:

			       Lloyd Treinish 
		       IBM T.J. Watson Research Center
		          P.O. Box 704, Room SK-Y68
		         Yorktown Heights, NY 10598
			    lloyd@watson.ibm.com
			       914-784-5038


				  ******



		   Interdisciplinary Case Studies Proposals
			   (due March 31, 1993)

	Case studies is a forum for scientists from various disci-
	plines to discuss applications, experience, and challenges 
	of visualization, and to present potential topics of future 
	research. These sessions provide an interdisciplinary meeting 
	point between scientists from different areas. We encourage the
	discussion between visualization experts of the roles, benefits,
	and limitation of visualization in particular areas such as 
	astrophysics, atmospheric sciencies, computational fluid 
	dynamics, engineering, geology, medicine, anthropology, 
	chemistry, etc. For Case Study proposal instructions, we 
	encourage electronic submission; please contact Case Studies
	Co-Chair:

			       Deborah Silver	
			     Rutgers University
			       P.O. Box 1390
			  Piscataway NJ 08855-1390
			  silver@caip.rutgers.edu
			        908-932-5546


				  ******


 	 
		 Workshop Proposals (due March 31, 1993)

	Half-day, one or two day workshops on specific visualization 
	methods or application areas will be offered Monday and 
	Tuesday. They  should deal with state-of-the-art topics and 
	involve experts in the field. Discipline-focused workshop 
	proposals devoted to a particular discipline's methods and needs 
	are encouraged (e.g.molecular graphics). If appropriate, a 
	workshop may be co-sponsored by another professional 
	organization. For Workshop proposal instructions, contact 
	Workshop Co-Chair:

			       Chuck Hansen	
		     Los Alamos National Laboratory
				 MS-B287
			      P.O. Box 1663
		           Los Alamos, NM 87545
			     hansen@lanl.gov
			      505-665-3663


				  ******



		   Tutorial Proposals (due March 31, 1993)

	Half-day and full-day course proposals are welcome for systems, 
	methods, and application areas. Tutorials will be  offered 
	Monday and Tuesday, preceeding the Wednesday through Friday 
	conference. Proposals should target visualization at a 
	beginning, intermediate, or advanced level. For Tutorial 
	proposal instructions, contact Tutorials Co-Chair:

			        Roni Yagel
			 The Ohio State University
		 Dept. of Computer and Information Science
			      2036 Neil Avenue
			  Columbus, OH 43120-1277
		         yagel@cis.ohio-state.edu
			       614-292-0060	



				  ******



		Demonstration Proposals (due May 30, 1993)

	Research groups from academia or industry, as well as vendors, 
	are invited to demonstrate their work interactively. Proposals 
	should summarize the work to be presented and identify the 
	hardware/software platform required. Demonstrations will be 
	held on Wednesday and  Thursday during the conference.  For 
	Demonstration proposal instructions, contact Demonstrations
	Co-Chair:

			       Bill Ribarsky	
		     Office of Information Technology
		      Georgia Institute of Technology
		          Atlanta, GA 30332-0710
		         bill.ribarsky@gatech.edu
			       404-894-6148



				  ******



	             2-Day Symposium on Virtual Reality
		            (due March 31, 1993)

	A 2-day Symposium on Virtual Reality applications for 
	visualization will be held Monday and Tuesday of the conference 
	week. The symposium will offer refereed papers, a panel 
	discussion, posters and extra time for discussion.  Papers and 
	posters are solicited  in Virtual Reality and visualization, 
	augmented reality, human factors, interaction techniques, and 
	application areas. For Virtual Reality Symposium submission 
	instructions, contact VR Symposium Co-Chairs:

				Steve Bryson
			 NASA-Ames Research Center
			  Moffett Field, CA 94035
			    bryson@nas.nasa.gov
			        415-604-4524



				  ******


	           2-Day Symposium on Parallel Rendering
			   (due March 31, 1993)

	A 2-day Symposium on parallel rendering techniques 
	will be held Monday and Tuesday. The symposium will offer 
	refereed papers as well as informal discussions. Papers are 
	solicited on all aspects of parallel rendering, including: 
	polygon scan conversion, ray tracing, radiosity, volume 
	rendering, constructive solid geometry, surface generation, 
	scientific visualization, massively parallel computation, 
	performance analysis, I/O and display issues, and architectural 
	impact on algorithms. Papers are not limited to a visualization 
	context. For Parallel Rendering Symposium submission 
	instructions, contact PR Symposium Co-Chair:

				Tom Crockett	
			NASA Langley Research Center
				 M.S. 132C
			  Hampton, VA 23681-0001
				tom@icase.edu
			        804-864-2182


				  ******



                        VIS '93 Conference Committee

Conference Co-Chairs:
	Carol Hunter, Lawrence Livermore National Lab
	Georges Grinstein, University of Massachusetts at Lowell
Program Committee Co-Chairs:
	Nahum Gershon, The MITRE Corporation
	Arie Kaufman, State University of New York at Stony Brook
Papers Co-Chairs:
	Dan Bergeron, University of New Hampshire
	Greg Nielson, Arizona State University
Panels Co-Chairs:
	Lloyd Treinish, IBM T.J. Watson Research Center
	Jeff Beddow, Hennepin County, Minnesota
Case Studies Co-Chairs:
	Deborah Silver, Rutgers University
	Frits Post, University of Delft, The Netherlands
Tutorials Co-Chairs:
	Roni Yagel, Ohio State University
	Haim Levkowitz, University of Massachusetts at Lowell
Workshop Co-Chairs:
	Mike Rhodes, Toshiba America Corporation
	Chuck Hansen, Los Alamos National Lab
Demonstrations Co-Chairs:
	Bill Ribarsky, Georgia Institute of Technology
	Theresa-Marie Rhyne, Martin Marietta/EPA
VR Symposium Co-Chairs:
	Steve Bryson, NASA-Ames Research Center
	Steven Feiner, Columbia University
Parallel Rendering Symposium Co-Chairs:
	Chuck Hansen, Los Alamos National Laboratory
	Scott Whitman, Lawrence Livermore National Laboratory
	Tom Crockett, NASA Langley Research Center
Videos Co-Chairs:
	Ed Council, Timberfield Systems
	Robert McDermott, University of Utah
Publicity Co-Chairs:
	Kay Howell, Naval Research Laboratory
	Carol Hunter, Lawrence Livermore National Laboratory
	J.P. Lee, University of Massachusetts at Lowell
Local Arrangements Co-Chairs:
	Stephen Watson, Jet Propulsion Laboratory
Finance Co-Chairs:
	Bruce Brown, Oracle Corporation
	Michael Danchak, Hartford Graduate Center
Registration Co-Chairs:
	Ross Gaunt, Lawrence Livermore National Lab
	Shirley Stephan, Lawrence Livermore National Lab
International Liason:
	Larry Rosenblum, Office of Naval Research, European Office
	Phil Robertson, CSIRO Information Division, Australia
Student Volunteers Co-Chairs:
	J.P.Lee, University of Massachusetts at Lowell
	Stephen Watson, Jet Propulsion Laboratory



From melissa@decwd.ece.uiuc.edu (Melissa Koch)
Subject: Help with hedgehog module
Message-ID: <C1J71p.vs@news.cso.uiuc.edu>
Sender: usenet@news.cso.uiuc.edu (Net Noise owner)
Organization: University of Illinois at Urbana
Date: Wed, 27 Jan 1993 21:15:24 GMT
Lines: 12


I would like to plot vectors indicating current flow over the surface
of a faceted geometry.  I have a list of coordinate points that   
correspond to the centers of each facet in the model.  I have a list
of 3-vector values associated with each of those coordinate points.
Given this information, how do I create a field 3D 3-vector float that
the hedgehog module expects?  

Any help appreciated,
Melissa Koch
melissa@decwd.ece.uiuc.edu



From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - Topo2irreg
Message-ID: <C1Kqqv.D68@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 17:18:31 GMT

Name        : Topo2irreg      Version      : 1.000     Mod Number : 1565 
Author      : Wright, E.L., U.S Geological Survey
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   : DEC Kubota Convex HP IBM
Description : This module converts a 2D scalar float 2-coordinate field
              to an irregular 3-D field by adding Z coordinates. The Z
              coordinates are the data values of the input field
              (typically topography) multiplied by the value of the
              vertical scale factor parameter. The input field may be
              uniform, rectilinear, or irregular.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - Z_slicer
Message-ID: <C1Kr4C.Dxn@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 17:26:36 GMT

Name        : Z_slicer        Version      : 1.000     Mod Number : 1566 
Author      : Wright, E.L., U.S Geological Survey
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   : DEC Kubota Convex HP IBM
Description : Z_slicer interpolates a 2D irregular field at a specified Z
              value from a 3D irregular field with stretched ("sigma")
              vertical coordinates. This is a common need in 3D
              atmospheric and oceanic models, where irregular fields
              have fixed X,Y locations for each vertical index, but Z
              values vary with the thickness of the fluid layer.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - Wide_Arrow
Message-ID: <C1KrBs.E85@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 17:31:04 GMT

Name        : Wide_Arrow      Version      : 1.000     Mod Number : 1567 
Author      : Wright, E.L., U.S Geological Survey
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   :
Description : This module reads a 1D 3-coordinate irregular field
              containing a single floating-point 2-element vector
              specifying X and Y velocity components at the specified
              (X,Y,Z) coordinate.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From yergeau@outpost.Stanford.EDU (Dan Yergeau)
Subject: Re: Rendering of flat complex geometries 
Message-ID: <1993Jan28.181908.994@EE.Stanford.EDU>
Sender: yergeau@outpost (Dan Yergeau)
Organization: Stanford University
Date: Thu, 28 Jan 93 18:19:08 GMT
Lines: 81

Direct mail to hayes%valkris@hac2arpa.hac.com was undeliverable,
so ...

In article <24830@hacgate.SCG.HAC.COM>, you write:
|> I'm having the geometry viewer display a GEOM_POLYHEDRON geometry of a
|> double headed arrow:
|>   /      \
|>  /|______|\
|> /          \       (wow, with ascii graphics like this, why use AVS?;^)
|> \  ______  /
|>  \|      |/
|>   \      /
|> 
|> When I set the render mode to "lines", I observe the expected result in 
|> the geometry viewer window: I see an outline of a double headed arrow.
|> 
|> HOWEVER, when I set the render mode to "no_light", I don't get a solid 
|> double headed arrow like I want.  I get something like this:
|>            
|>   /     /\
|>  /|___ /  \
|> /          \ 
|> \    ____  /
|>  \  /    |/
|>   \/     /
|>   
|> 
|> How can I get a solid double headed arrow like I want?  I've tried other
|> rendering modes but I don't get a solid double headed arrow.

AVS has problems triangulating concave polygons in a GEOM_POLYHEDRON
geometry when they have multiple concave regions.  We've reported
the problem to AVS support, and are in the queue, but according to the
last contact with them, this is a low priority item.  Perhaps,
if you report it also, the priority will get bumped, and the problem
will be fixed sooner.

Our fix was to break the regions into convex polyhedra, which
AVS cannot possibly mess up.  You lose the ability to show clean
outlines, but at least the surface representation is correct.  The
algorithm is

    begin:
	project the polygon onto a plane
	pick a starting point
	progress around the polygon in a fixed direction (CW or CCW)
	foreach point
	    check the direction of the turn 
	      (needs last, current, and next point)
	    if the direction is incorrect (e.g. left when going CW) then
		mark current point
		continue progressing around the polygon, searching
		  for a next point that
		    1. has the correct turn direction
		    2. creates a line segment from the current point 
                       that does not intersect any other line segments 
                       in the polygon
		break the polygon into two polygons by drawing a
		  line between the current and next point
		apply the algorithm recursively on each polygon
	    end if
	    if current point is the starting point then
		congratulation, the polygon is convex!
	    end if
	end foreach
    end:			  

It may not be the most efficient algorithm possible, but it works.

If you intelligently work with their GEOM file representation, you could
even triangulate the regions yourself, generating a consistent 
GEOM_POLYTRI object with the correct outline data.  


Dan Yergeau
yergeau@gloworm.Stanford.EDU
#include <std.disclaimer>






From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - E01SAF
Message-ID: <C1KxFG.JDB@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 19:42:52 GMT

Name        : E01SAF          Version      : 1.000     Mod Number : 1568 
Author      : Steve Larkin, Computer Graphics Unit, University of
              Manchester, UK
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   :
Description : This module provides an interface to the NAG Fortran
              routines E01SAF and E01SBF. The first routine (E01SAF)
              generates a 2D surface interpolating a set of scattered
              data points, using the method of Renka and Cline. The second
              routine (E01SBF) then evaluates the surface at a given
              point.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - carpet
Message-ID: <C1KyCt.KDI@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 20:02:53 GMT

Name        : carpet          Version      : 1.000     Mod Number : 1569 
Author      : Ian Curington, Advanced Visual Systems
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   : DEC Kubota Convex HP IBM
Description : A Carpet Plot surface is made showing surface height
              variation from one field, with color variations from data
              in a second field. Each cell is drawn as per field to mesh,
              (linear interpolation), or in block mode with descrete
              non-interpolated colors. In block mode, it will
              optionally leave holes in the carpet where the data goes out
              of range for the colormap, allowing mask values to control
              cell visibility, or region boundaries.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From ICH561@DJUKFA11.BITNET (Astrid Kuhr)
Newsgroups: comp.graphics.avs
Subject: ucd-filter for scaling coordinates
Message-ID: <93028.071150ICH561@DJUKFA11.BITNET>
Date: 28 Jan 93 06:11:50 GMT
Organization: Forschungszentrum Juelich
Lines: 14


Hello!

Has anybody a filter-module for ucd-data, which allows the user, to scale
the x, y, z-coordinates?
Any help is welcome.

Thanx, regards

Astrid Kuhr


email: ich561@zam001.zam.kfa-juelich.de  (internet) or
       ich561@djukfa11                   (bitnet)


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - tracer_bounds
Message-ID: <C1KzuG.M4q@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Thu, 28 Jan 1993 20:35:04 GMT

Name        : tracer_bounds   Version      : 1.000     Mod Number : 1570 
Author      : Lars M. Bishop, National Center for Comp. Elect., Univ. of
              Illinois
Submitted   : 01/28/93        Last Updated : 01/28/93  Language   : C        
Ported to   : DEC Convex IBM
Description : Tracer Volume Bounds - This module takes in a 3D Uniform 4
              vector Byte field, and adds a white frame to the edges. It is
              designed to be applied to a volume of data right before it is
              sent to the tracer module, and allows the addition of lines
              that look like the geometry viewer's volume bounds, which
              are normally inaccessible to volume-traced data. It also
              includes the ability to fill in the min X,Y, or Z walls, as the
              original volume bounds module does.
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From avs@ncsc.org (International AVS Center)
Subject: New module at IAC - shutter
Message-ID: <C1MDpD.6G1@doppler.ncsc.org>
Sender: katie@doppler.ncsc.org (AVS account)
Organization: North Carolina Supercomputing Center
Date: Fri, 29 Jan 1993 14:32:01 GMT

Name        : shutter         Version      : 1.000     Mod Number : 1571 
Author      : Wes Bethel, Lawrence Berkeley Laboratory
Submitted   : 01/29/93        Last Updated : 01/29/93  Language   : C        
Ported to   : DEC Kubota Convex HP IBM
Description : The shutter module allows the user to control the flow of an
              AVS image to downstream modules. This module is designed
              for use in networks in which animation sequences are
              created using the geometry renderer. This module allows
              for the idiosyncracies of the AVS render geometry module
              which will perform several pixmap updates prior to
              finishing the rendering of the entire scene. Shutter will
              be useful in making sure the entire scene has been rendered
              prior to passing the resultant image downstream to a data
              output module (which may put the image onto a videodisk, or
              write the image to a file).
-- 
International AVS Center
North Carolina Supercomputing Center
avs@ncsc.org


From melin@hlrz24.hlrz.kfa-juelich.de (Stephan Melin)
Newsgroups: comp.graphics.avs
Subject: Help needed: Spinning Spheres
Message-ID: <1993Jan29.112052@hlrz24.hlrz.kfa-juelich.de>
Date: 29 Jan 93 10:20:52 GMT
Sender: news@zam103.zam.kfa-juelich.de
Organization: Forschungszentrum Juelich GmbH (KFA), Germany
Lines: 16
Nntp-Posting-Host: hlrz24

Hello,

so far I can draw lots of spheres with different colors and radii, 
but for the animation I want to make I need a way to visualize that
they are spinning. Since there are so many spheres they are all in one
object.
Is there a way to put a texture (e.g. chessboard style) on each of the
spheres?

Many thanks in advance,
best regards
-- 
Stephan Melin

melin@hlrserv.hlrz.kfa-juelich.de   ||    hkf418@djukfa11.bitnet



