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From: laser-lovers@uw-beaver
Newsgroups: fa.laser-lovers
Subject: Re: LaserWriter/Postscript for TeX?
Message-ID: <863@uw-beaver>
Date: Sat, 16-Feb-85 17:37:06 EST
Article-I.D.: uw-beave.863
Posted: Sat Feb 16 17:37:06 1985
Date-Received: Tue, 19-Feb-85 05:47:04 EST
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Organization: U of Washington Computer Science
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From: Richard Furuta <Furuta@WASHINGTON.ARPA>

My reading of the messages relating to PostScript and quick scans of
the PostScript manual indicate that, on the short term, it should be
possible to do font caching using PostScript procedures.  In other
words, it should be possible to send the bits associated with the
character down only once and then subsequently refer to those stored
bits.  This is precisely the method that we use on our Symbolics LGP-1
which sits at the end of a 9600 baud line.  The performance is
certainly better than 3 pages per minute.  I'd guess that the 9600
baud line limits us to an average speed of somewhere in the range of 5
to 8 pages per minute on the LGP-1 and so it certainly should be
possible to drive the LaserWriter at close to full speed even if you
have to send the character bitmaps down.

There may be a more elegant way to get this job done in PostScript but
my immediate feeling is that it is quite plausible, even without fonts
available in the outline format.  If the TeX fonts become available in
the outline format, then the DVI driver will be quite trivial.

Another question for Adobe---what are the plans for providing TeX
fonts?

					--Rick
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