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Info-Graphics Digest	Sun Sep  6 03:00:27 PDT 1987

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Today's Topics:

      Re: Info-Graphics Digest
 Undeliverable mail
 Info-Graphics Digest
 Undeliverable mail
 Info-Graphics Digest
  HPGL File Snaring

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Date:         Mon, 31 Aug 87 08:33:32 MST
From: Jim Howard <KGJHH%ASUACAD.BITNET@wiscvm.wisc.edu>
Subject:      Re: Info-Graphics Digest
 <INFO-GRAPHICS-REQUEST@ADS.ARPA>

>HPGL File sharing
Many available black-box type graphics programs only write their hardcopy
graphics output to the serial ports (COM1) and do it via hardware rather than
the DOS interrupts. This makes it virtually impossible to intercept it. Some
vendors such as Supercalc3 and 4, give an option to direct the output to any
ports, including the parallel ports LPT1, etc. This allows interception, and
allows better plotter operation on local area nets. Some programs are beginning
to give the user an option of writing the output to a file also. Some LAN
vendors are providing harware adapters that take the COM1 output and route it
back to the network or parallel port (seriously!) to get plotting to work at
all.
Jim Howard

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Date: Mon, 31 Aug 87 11:43 PDT
From: PMDF Mail Server <Postmaster%YMIR.BITNET@wiscvm.wisc.edu>
Subject: Undeliverable mail

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 87 11:31 PDT
 Aug 87 03:22:42 pdt
Date: 30 Aug 1987 03:00:14-PDT
From: Info-Graphics moderator Andy Cromarty <Info-Graphics-Request@ADS.ARPA>
Subject: Info-Graphics Digest
Reply-to: Info-Graphics@ADS.ARPA

Info-Graphics Digest    Sun Aug 30 03:00:15 PDT 1987

 - Send submissions to Info-Graphics@ADS.ARPA
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Today's Topics:

 Undeliverable mail
 Info-Graphics Digest
  HPGL File Snaring

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Date: Thu, 20 Aug 87 16:39 PDT
From: PMDF Mail Server <Postmaster%YMIR.BITNET@wiscvm.wisc.edu>
Subject: Undeliverable mail

The message could not be delivered to:

Addressee: BEN
Reason:
  %MAIL-E-NOSUCHUSR, no such user BEN at node YMIR

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 87 16:23 PDT
 Aug 87 04:01:58 pdt
Date: 16 Aug 1987 03:00:14-PDT
From: Info-Graphics moderator Andy Cromarty <Info-Graphics-Request@ADS.ARPA>
Subject: Info-Graphics Digest
Reply-to: Info-Graphics@ADS.ARPA

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

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

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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