Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP Path: utzoo!mnetor!uunet!seismo!husc6!mit-eddie!ll-xn!ames!ucbcad!ucbvax!THUMPER.BELLCORE.COM!mike From: mike@THUMPER.BELLCORE.COM (Mike A. Caplinger at thumper.bellcore.com) Newsgroups: comp.laser-printers Subject: PostScript, patterns, and device independence Message-ID: <8707282034.AA20107@brillig.umd.edu> Date: Wed, 22-Jul-87 16:58:09 EDT Article-I.D.: brillig.8707282034.AA20107 Posted: Wed Jul 22 16:58:09 1987 Date-Received: Thu, 30-Jul-87 02:00:21 EDT Sender: daemon@ucbvax.BERKELEY.EDU Distribution: world Organization: The ARPA Internet Lines: 18 Approved: laser-lovers@brillig.umd.edu I recently tried to print a PostScript document, produced and debugged with an Apple LaserWriter, on a Linotronics phototypesetter. One of the illustrations in the paper was done with MacDraw, and used a variety of dashed and patterned lines (using line patterns, which is the only way to do dashed lines in MacDraw). These looked just fine on the LaserWriter, but on the Lino some of the lines disappeared completely, and others looked the same when they were supposed to be different, and were different on the LaserWriter. This is a naive question, because I haven't thought through the interaction of patterns with device resolution, but should this kind of thing be allowed to happen? One of the reasons I was so enthused about PostScript was its total device independence, but this experience has told me that it isn't quite as portable as I thought. Mike Caplinger mike@bellcore.com {decvax,ihnp4}!thumper!mike