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Info-Graphics Digest	Sun Nov 16 03:00:29 PST 1986

 - Send submissions to Info-Graphics@ADS.ARPA
 - Send requests for list membership to Info-Graphics-Request@ADS.ARPA

Today's Topics:

 X window system
 request for GKS advice
 SurfaceII device drivers needed
 Perspective Problem with Image Derivation.
 hidden-line algorithms for animation
 FOR SALE: High Quality RGB Monitor.
 Perspective Problem deal with Image Derivation

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

Date: Sat, 8 Nov 86 00:09:09 est
From: Michael Pique <unc!mp%unc.csnet@RELAY.CS.NET>

Mike Amron is organizing a San Diego ACM SIGGRAPH local group; if
you are interested in helping, please phone him at (619) 583-5682,
or me (Michael Pique) at (619) 457-9775. Right now he especially
needs a half-dozen more ACM members to phone and say they support
forming a local group.  Please tell colleagues who don't get news.
	(Mike Amron is not on the net, so I'm posting this.)

 -- Michael Pique, Research Institute of Scripps Clinic,
	Molecular Biology MB-3, 10666 N Torrey Pines Rd, San Diego 92037


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Date: Tue, 11 Nov 86 08:55 EST
From: Robert Scheifler <RWS@ZERMATT.LCS.MIT.EDU>
Subject: X window system

There is a mailing list, "xpert@athena.mit.edu", just for
discussing X.  Send mail to "xpert-request@athena.mit.edu"
to get on the list.


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

Date: Tue 11 Nov 86 14:05:04-PST
From: Richard Steinberger <STEINBERGER@SRI-KL.ARPA>
Subject: request for GKS advice



I'm looking for a package of graphics programs.  It should include a current
GKS set and a group of higher level routines that allow 2-D, 3-D,
halftones, contours, and the usual other desired features such as a choice
of fonts.  It should run under VMS 4.4 (soon to be 4.5?), and be able
to output to at least an LN03+ and the VT240's; imagen would be a plus.
Cost: under $3000?  Does anyone have any recommendations?  Should I just
get DEC's GKS and write my own higher level routines?

Thanks in advance to all who answer.  I'm not on the info-graphics dist.
list.  Could you please reply to me directly.

-Ric Steinberger
STEINBERGER@SRI-KL.ARPA.#INTERNET

(415)859-4300

-------
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Date: Tue, 11 Nov 86 13:17:25 est
From: "Emily S. Bryant" <emilyb%dartmouth.edu@RELAY.CS.NET>
Subject: SurfaceII device drivers needed


Dartmouth runs SurfaceII under VAX/VMS; we are looking for any information
on writing device drivers for the following devices:
Tektronix 4014, 410x, 4662, 4663, and Zeta plotters.
We would be interested in hearing from anyone running SurfaceII under
VMS.

Please respond to:
Rich Ackerboom

...!{ihnp4, decvax}!dartvax!boomer
boomer@dartmouth.edu


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

Date: Wed, 12 Nov 86 07:44:34 est
From: munnari!csadfa.oz!gyp@seismo.CSS.GOV (Patrick Tang)
Subject: Perspective Problem with Image Derivation.

I am trying to solve the following problem,

	A
	^
	|
	+--->B
That is, with the two images A and B, I like to produce intermediate images
between A and B. I wonder anybody has attempted to do so. Could you let me
know what sort of literature I should look into especially on the perspective
problem involved. 

Thanks in advance.
----
Tang Guan Yaw/Patrick	   Phone ISD:	+61 62 68 8819	    STD: (062) 68 8819
Dept. Computer Science	       Telex:	ADFADM AA62030
University College	      ACSNET:	gyp@csadfa.oz
Aust. Defence Force Academy	UUCP:	...!seismo!munnari!csadfa.oz!gyp 
Canberra. ACT. 2600.		ARPA:	gyp%csadfa.oz@SEISMO.CSS.GOV
AUSTRALIA		       CSNET:	gyp@csadfa.oz

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

From: Dirk Roose <prlb2!kulcs!dirkr@seismo.CSS.GOV>
Date: Thu, 13 Nov 86 11:14:53 -0100
Subject: hidden-line algorithms for animation


I'm searching for hidden-line/hidden-surface algorithms for animation of
objects which change in time (e.g. for showing the deformation of a
structure caused by an external force). 

The objects consist of planar faces.  For each picture of the animation,
the coordinates of the endpoints of the edges are known, together with
information about the movement of each endpoint.

I would like to obtain references of papers, describing hidden-line
algorithms which use some kind of frame-to-frame coherence, which can
be applied in this situation.

I only know one paper in which frame-to-frame coherence is described,
but in the context of fixed objects and a moving viewpoint :
H. Hubschman and S. Zucker, Frame-to-frame coherence and the
hidden-surface computation: constraints for a convex world.
ACM Computer Graphics, 15 (3), 1981, 45-54.


Dirk Roose
Dept. of Computer Science    K. U. Leuven
Celestijnenlaan 200A   B-3030 Leuven    BELGIUM
UUCP : dirkr@kulcs

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

Date: Sat, 15 Nov 86 01:46:11 est
From: "M.W. Tilden, Hardware" <mwtilden%watmath.waterloo.edu@RELAY.CS.NET>
Subject: FOR SALE: High Quality RGB Monitor.
Distribution: can



Selling a Aydin controls (Actually Mitsubichi) 21 inch
high quality electrostatic RGB monitor.  1024 * 750 resolution
capable.  32 meg. bandwidth (I think).  Full in-drawer dynamic 
controls and alignment.  A switch, dial and button for everything.
Big and impressive.  Initially a main monitor for a graphics lab.
Looks sharp.  

Asking $3000 ( A steal!  A real bar-goon!)

Haggling welcome.

(Assume  all bar-goons real unless declared integer.)


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

Date: Fri, 14 Nov 86 08:15:50 est
From: munnari!csadfa.oz!gyp@seismo.CSS.GOV (Patrick Tang)
Subject: Perspective Problem deal with Image Derivation

I have sent the following submission to this newsgroup couple of days ago.
However, I just found out that I sent it to 'request' rather than the
moderator for submission. If that article is not being forward to you, then
the following is the article again or else ignore this submission. Sorry for
the inconvenience.
===========================================================================
I am trying to solve the following problem,

	A
	^
	|
	+--->B
That is, with the two images A and B, I like to produce intermediate images
between A and B. I wonder anybody has attempted to do so. Could you let me
know what sort of literature I should look into especially on the perspective
problem involved. 

Thanks in advance.
----
Tang Guan Yaw/Patrick	   Phone ISD:	+61 62 68 8819	    STD: (062) 68 8819
Dept. Computer Science	       Telex:	ADFADM AA62030
University College	      ACSNET:	gyp@csadfa.oz
Aust. Defence Force Academy	UUCP:	...!seismo!munnari!csadfa.oz!gyp 
Canberra. ACT. 2600.		ARPA:	gyp%csadfa.oz@SEISMO.CSS.GOV
AUSTRALIA		       CSNET:	gyp@csadfa.oz
===========================================================================


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End of INFO-GRAPHICS
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