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From: eric@batcomputer.UUCP
Newsgroups: comp.sys.mac
Subject: Re: Laserwriter, PostScript, and Patterns
Message-ID: <465@batcomputer.tn.cornell.edu>
Date: Fri, 20-Mar-87 16:17:39 EST
Article-I.D.: batcompu.465
Posted: Fri Mar 20 16:17:39 1987
Date-Received: Thu, 26-Mar-87 04:41:01 EST
References: <2302@cec2.UUCP> <345@gssc.UUCP>
Reply-To: eric@batcomputer.UUCP (Eric Fielding)
Organization: Dept. Geol. Sci., Cornell University, Ithaca NY
Lines: 17

In article <345@gssc.UUCP> jdm@gssc.UUCP (John D. Miller) writes:
>From my dealings with PostScript, I have not found any indication of the
>ability to fill with a pattern, which is a real shame.  "Color" fills only,
>which means you can greyscale.

>in real life:  John D. Miller, Graphic Software Systems, Inc., Beaverton OR
>...!{tektronix!verdix}!sequent!gssc!jdm                      (503) 641-2200

I don't know what the mac does to download it's patterns, but one of 
us has written a PostScript driver that creates its own pattern fills.

One has to figure out the bit map for the pattern and send it to PostScript
in hex.  To get a fine-scale pattern you need a lot of bits, coarser
patterns (fewer bits) can be enlarged but look cruder.

					++Eric Fielding
eric@tcgould.tn.cornell.edu