Article View: comp.lang.postscript
Article #1170Re: Test for nocurrentpoint
From: Erik Jacobsen
Date: Tue, 10 Oct 1989 13:11
Date: Tue, 10 Oct 1989 13:11
23 lines
1276 bytes
1276 bytes
In article <3439@daimi.dk> I write:
>
>How can I test if there is no currentpoint, or the current path
>is empty? I would like something like this:
>
>
> thereisacurrentpoint { pathbbox ..... }
> { ..... } ifelse
The answer: To test if pathbbox executes with an error, you can do this:
{pathbbox} stopped { ActionIfError } { ActionIfOk } ifelse
Thanks to jlk@daimi.dk
Erik
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Erik Jacobsen, Computer Science Department, Aarhus University
Ny Munkegade, Building 540, DK-8000 Aarhus C, Denmark
Phone: +45 86127188, Telefax: +45 86135725, Home phone: +45 86169199
Internet: erja@daimi.dk, Ham-radio: OZ6KS
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<3440@daimi.dk>Path:
arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!bloom-beacon!eru!luth!sunic!dkuug!daimi!epimetheus!erjaReferences:
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Path: arc1-ca.pugleaf.net!utzoo!attcan!utgpu!jarvis.csri.toronto.edu!rutgers!mit-eddie!bloom-beacon!eru!luth!sunic!dkuug!daimi!epimetheus!erja From: erja@epimetheus.dk (Erik Jacobsen) Newsgroups: comp.lang.postscript Subject: Re: Test for nocurrentpoint Message-ID: <3440@daimi.dk> Date: 10 Oct 89 13:11:42 GMT References: <3439@daimi.dk> Sender: news@daimi.dk Reply-To: erja@daimi.DK (Erik Jacobsen) Organization: DAIMI: Computer Science Department, Aarhus University, Denmark Lines: 23