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Info-Graphics Digest	Sun Aug 16 03:00:14 PDT 1987

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Today's Topics:

  HPGL File Snaring

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Date:     Sun,  9 Aug 87  18:00:39 MDT
From: ZSYJKAA%WYOCDC1.BITNET@wiscvm.wisc.edu
          (Jim Kirkpatrick 307 766-5303)
Subject:  HPGL File Snaring

   We'd like very much to run some sort of plot package, such as a subroutine
package as well as a monolithic black box package, on IBM PCs and clones.
We'd like them to be able to produce HPGL as output, but not just to a device.
Our plan is to capture the HPGL onto a file, ship that file down to a host
computer, and from there to our color microfilm system.  We are currently
looking at HP's Drawing Gallery.  Unfortunately, it (and many other products)
wants only to talk to an HPGL device via an output port, and cannot apparently
be convinced to dump the data onto a file instead.  Since DOS is so stupid
you cannot "pipe" the data elsewhere, there seems two alternatives.  One is
to write an assembly-language demon which steals the data destined for the
alleged output port, and write it to disc.  The other is to give up.
   Does anybody have experience capturing HPGL onto a file from commercial
packages?  Does anybody have experience or references on how difficult it
is to write a demon like this?  Is there in fact some way to con Drawing
Gallery into saving the data on a file?  To convince DOS to do it for me?

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Date: Tue, 11 Aug 87 13:49 N
From: POGET%CLSEPF51.BITNET@wiscvm.wisc.edu
Subj: Multiprocessing for Computer graphics

I'm searching for people who have an experiment with computer graphics on
multiprocessors systems. Our lab is developping such  a system based on several
68020, so I would be interested in knowing what are the current unsolved
problems in this field. This field could be an interesting topic for further
discussion on INFO-GRAPHICS.


              Marc-Henri Poget
              Laboratoire de microinformatique EPFL
              Lausanne, Switzerland

              POGET @ CLSEPF51.BITNET


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