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Info-Graphics Digest	Sun Apr 19 03:00:19 PDT 1987

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Today's Topics:

 GETAFM Posted on net.sources -- print in fonts you never knew you had.
 PC graphics cards/standards/monitors
 Eye tracking devices and smooth movement
 4/28 ACM SIGGRAPH/SIGBIG lecture on Vector and parallel processing
 SURFMODL 1.1 available

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From: swatsun!greenber@seismo.CSS.GOV (Peter Greenberg)
Subject: GETAFM Posted on net.sources -- print in fonts you never knew you had.
Date: 13 Apr 87 05:10:13 GMT

I wrote a program that gets Adobe Font Metrics (AFM) files from any PostScript
device, and I have posted it to net.sources. I attempted posting this program
some time ago but it was redirected to /dev/null at an upstream site, as was
all outgoing news from Swarthmore College. You should check it out, and
E-Mail me if it is useful to you. The last time I posted to net.sources, I
also posted notices like this on mod.computers.laser-printers and, I believe, 
comp.graphics and I received several requests for the program, called getafm.
I have fixed some bugs and now it works fine for teaching your computer to
ptroff and enscript in fonts that you have on your PS device but have no 
AFM files for.


-- 
Peter Greenberg, Swarthmore College, Swarthmore, PA 19081 
AT&T:(215) 328-8384 or 8610
UUCP: ...{{seismo | inhp4}!bpa | {sun | rutgers}!liberty}!swatsun!greenber
ARPA: swatsun!greenber@bpa.BELL-ATL.COM 

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Date:    Mon, 13 Apr 87 12:25 EDT
From: Kevin Broekhoven <BROEKHVN%QUCDN.BITNET@wiscvm.wisc.edu>
Subject: PC graphics cards/standards/monitors

I have just started looking at all these graphics cards for PC's (we have
zeniths with IBM cards here at Queens)  and am frankly getting quite confused
about all the different standards (CGA, EGA, HERC, ...the new IBM standard)
as well as what screen works with what (monochrome, high-res, ttl...)

I have some vendor documentation but it's difficult to see the forest for the
trees.  Is there any article or reference out there that gives a clear,
simple overview of the whole subject of graphics cards/standards/monitors?

Please send any mail to me,  I will forward a list of responses
to this list.

thanks in advance,

Kevin Broekhoven
Applications programmer (graphics)
Computing and Communications Services
Queens University K7L-3N6 (613) 545-2235
Mailnet, Bitnet, NetNorth: BROEKHVN at QUCDN

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Date: Mon, 13 Apr 87 16:32:05 PST
From: Jeffrey Mulligan <jbm@ames-aurora.arpa>
Subject: Eye tracking devices and smooth movement

pwha@tut.cc.rochester.edu (Bill Haake):
> 
> 
> by an eye tracking device (interfaced to 11/73). It is most important that 
> "the movement" appear smooth, i.e. 1 pixel at a time and that the movement 
> can be synchronized with data collected from the eye tracker. We would 
> like to create the movement by hardware pan and scroll at one pixel 
> resolution, but color map animation techniques or double frame buffer 
> methods that can be performed

For smooth movement you might want to consider vector plotting.
I had a very nice system running off of an 11-23 that consisted of:

A 3 board set from ADAC (Mass. company, check advertiser index in
  HARCOPY), consisting of DMA interface, a/d board, and expander board
  with 2 d/a's  (part numbers 1023ad, 1023ex and 1620dma, I think).

A programmable clock board, also from ADAC.

A small plotting scope (Hewlett-Packard 1350 I think).

We chose the ADAC boards because they were they only ones which offered
DMA-driven DAC's.  With DMA, we could plot points at about 10 usec /point.
Animated displays consisting of ~512 points per frame could easily
be displayed at 100 Hz, with higher refresh rates possible as the
number of points was decreased.  The DAC's were 12 bit, giving
better positional resolution that a raster system without anti-aliasing.

We also had a raster unit attached to this system:  an AED 767.
(Advanced Electronic Devices, Sunnyvale CA) 1K by 1K frame buffer,
displaying 480 x 640 at 80 Hz (Yes, that's 80 not 60), interlaced.
Price was about $7K back then, probably cheaper now.  We had it
driving a high quality monitor which cost another $7K itself.

Hope this was some help.


	Jeff Mulligan (jbm@ames-aurora.arpa)
	NASA/Ames Research Ctr., Mail Stop 239-3, Moffet Field CA, 94035
	(415) 694-5150


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From: Eugene Miya N. <eugene@ames-pioneer.arpa>
Date: 15 Apr 1987 1725-PST (Wednesday)
Subject: 4/28 ACM SIGGRAPH/SIGBIG lecture on Vector and parallel processing

   [Of interest to those in or near the San Francisco Bay Area:]

Bay Area ACM/SIGGRAPH and SIGBIG present:
"A Quick Introduction to Vector and Parallel Processors for Graphics
Programmers"

Speaker: Richard Friedman
Sr. Systems Analyst, Pacific-Sierra Research

Do you believe in the Desktop Cray?  Computer graphics is extremely
compute intensive, hence frequent use of supercomputers.  Many such
features are finding their way into smaller mini-supercomputers, main
frames, and now personal computers.  In the not too distant future, we
will see the day of the "Desktop Cray."  The question is not "if" but
"when?"  We have invited our speaker to give us a glimpse into the future.

Topic:
Richard Friedman will give us a quick tour thru today's
"supercomputers," along with the joys and difficulties of programming
them for real applications.  To utilize these machines both easy and
radical changes in coding styles are required.  He will address the
questions: "What is vectorization?" "How do you program for parallel
execution?" and "What about portability?" among others.

About the Speaker:
Mr. Friedman started working with state-of-the-art supercomputers (CDC
6600) in 1965 at the Courant Institue of New York Univ.  From 1968 to
1981, he was in charge of programming languages and libraries (CDC 6600
and 7600) at the Lawrence Berkeley Laboratory of UC Berkeley.  He spent
1977 at the European Weather Centre (ECMWF) in England which was one of
the early Cray-1 sites. Since joining Pacific-Sierra Research, Mr.
Friedman has created special applications software for the Cray and
Cyber-205 systems and has been involved with development on Alliant,
SCS, and other supercomputer systems.

When	Tuesday April 28, at 8 PM

Where:	Hewlett-Packard (The Oak Room)
	19447 Pruneridge Ave., Cupertino, CA

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Date: Thu, 16 Apr 87 7:52:31 EST
From: Kenneth Van Camp -FSAC- <kvancamp@ARDEC.ARPA>
Subject: SURFMODL 1.1 available

SURFMODL (surface/solids modeling program for the IBM PC and compatibles)
version 1.1 is now available from Simtel-20. It is broken into two
archives; the first contains the full source code (4000+ lines of Turbo
Pascal code), documentation, and example data files.  The second contains 
several different versions of the executable code to support the Hercules 
graphics board, CGA, EGA, Heath/Zenith Z-100, AT&T 6300, Sanyo MBC-55x, and 
IBM 3270.  You will need the following two files: 

Filename			Type	 Bytes	 CRC

Directory PD:<MSDOS.SURFMODL>
SURFMODL.ARC			BINARY	234507  F713H
SURFMVSN.ARC			BINARY	346348  5759H

		  --Ken Van Camp <kvancamp@ARDEC.ARPA>


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End of INFO-GRAPHICS
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