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Article View: comp.lang.postscript
Article #6087

Re: Query re `arc'

#6087
From: Jim Graham
Date: Thu, 23 May 1991 03:58
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ghost@aladdin.com (L. Peter Deutsch) writes:
|> The PostScript specification trivia question for today:
|> 
|> If you ask a PostScript engine to draw a zero-degree arc and there is
|> no current point, does the arc operator just do a moveto, or does it
|> do a moveto and then draw a zero-length line?  It makes a difference,
|> because if you've selected non-round caps and round joins, 'stroke'
|> will give no output if arc does the former, whereas the latter will
|> draw a dot.

According to the Laserwriters, "newpath 50 50 20 0 0 arc" generates
a single path element, "70 50 moveto".

					...jim
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Message-ID: <13865@exodus.Eng.Sun.COM>
Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!exodus!bendenweyr!flar
References: <93.UUL1.3#5127@aladdin.com>

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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sun-barr!newstop!exodus!bendenweyr!flar
From: flar@bendenweyr.Eng.Sun.COM (Jim Graham)
Newsgroups: comp.lang.postscript
Subject: Re: Query re `arc'
Message-ID: <13865@exodus.Eng.Sun.COM>
Date: 23 May 91 03:58:52 GMT
References: <93.UUL1.3#5127@aladdin.com>
Sender: news@exodus.Eng.Sun.COM
Reply-To: flar@bendenweyr.Eng.Sun.COM (Jim Graham)
Organization: Sun Microsystems, Inc.
Lines: 14