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Article #3264Re: printing thin lines on 300dpi printer
From: Woody Baker Eagle Signal
Date: Thu, 04 Oct 1990 00:32
Date: Thu, 04 Oct 1990 00:32
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In article <LAMBERT.90Oct3110022@nankeen.spectrum.cs.unsw.oz.au>, lambert@spectrum.cs.unsw.oz.au (Tim Lambert) writes: > >>>>> On 1 Oct 90 22:21:16 GMT, dsmith@applga.aa.cad.slb.com (J. Daniel Smith) said: > > > I'm trying to print 1 pixel wide lines on a 300dpi PS printer. > > Why not say "0 setlinewidth"? Because as has been pointed out before, 0 setlinewidth is not guaranteed to produce a 1 pixel wide line. setting it to .12 is supposed to explicitly do that. A lot of times the problems with wide lines can be traced to rounding problems. As I understand it, you can round up or down to .25, 0 .5. Since any dot touched by a line gets filled in, in certain roungings, you will have problems. This seems to occur when you have rounded such that you are straddling the boundry between 2 ajacent rows of pixels. Some time back, the rules were posted to the net. I'm not sure just where they are. Cheers Woody
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!chinacat!woody From: woody@chinacat.Unicom.COM (Woody Baker @ Eagle Signal) Newsgroups: comp.lang.postscript Subject: Re: printing thin lines on 300dpi printer Summary: well... Message-ID: <1604@chinacat.Unicom.COM> Date: 4 Oct 90 00:32:29 GMT References: <1990Oct1.222116.14508@applga.aa.cad.slb.com> <LAMBERT.90Oct3110022@nankeen.spectrum.cs.unsw.oz.au> Organization: a guest of Unicom Systems Development, Austin Lines: 19