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From: pf@artcom0.artcom.north.de (Peter Funk)
Newsgroups: comp.lang.postscript
Subject: Re: Multiple flattenpaths
Message-ID: <2064@artcom0.artcom.north.de>
Date: 2 Jun 90 12:20:45 GMT
References: <56864@bbn.BBN.COM>
Distribution: comp,world
Organization: ArtCom GmbH, Atelier f. Computergrafik, Bremen(FRG)
Lines: 30

cosell@bbn.com (Bernie Cosell) writes:

[...]
bc>        strokepath
bc>        flattenpath
bc>        ...lots of irrelevant stuff
bc>        flattenpath

bc> and the second flattenpath fails [I don't actually know why, because it
bc> is in a 'stopped' protected region [in both cases, it turns out], and
bc> what I know is that the stopped is failing, and limitcheck is the only
bc> listed error for flattenpath.  I'd have thought that doing a second
bc> flattenpath would be a no-op... is there something obvious I'm missing
bc> or might this be some kind of obscure bug (horrors!) in the PS
bc> interpreter I'm using [UltraScript on an Imagen printer].
[....]

How should the interpreter "know", that the path was previously flattened ?
Indeed the interpreter-writer may have added a boolean flag to the path...
obviously he has missed that.  So the interpreter tries to create a 
temporary copy of the path during the second 'flattenpath' and rans out 
of memory during this attempt.

May be: I should better add such a boolean "already-flat"-flag to OUR 
ps-clone... ? ;-)
Peter Funk \\ ArtCom GmbH, Schwachhauser Heerstr. 78, D-2800 Bremen 1
Work at home: Oldenburger Str.86, D-2875 Ganderkesee 1 /+49 4222 6018 (8am-6pm)
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