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From: Helge Blischke <h.blischke@acm.org>
Newsgroups: comp.lang.postscript
Subject: Re: How to fill a path with a transparent pattern?
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Date: Tue, 12 Jul 2011 11:12:48 +0200
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Ernschd wrote:

> Hi,
> I know that there are plenty possibilities to create a pattern, but is
> there a solution to make it transparent? Also it should be usable with
> the "fill"-Operator for the path, like "setrgbcolor" or "setgray".
> I'm using Postscript Level 3. Are there any examples?
> Thank you.

PostScript's imaging model does not know of transparency in any respect; it 
only knows opaque painting.

Helge