Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!mailrus!iuvax!purdue!gatech!dcatla!dudkl
From: dudkl@dcatla.UUCP (Danny K. Llewallyn)
Newsgroups: comp.lang.postscript
Subject: See-thru fills
Keywords: Show what's underneath!
Message-ID: <19073@dcatla.UUCP>
Date: 18 May 89 17:40:22 GMT
Organization: DCA, Inc., Alpharetta, GA
Lines: 26

Please don't ask me why, but I have been playing around with the idea
of a fill operator that does not coverup what has already been placed
onto the page.  The only way that this can be accomplished  (please
chime in Glenn) is via the imagemask operator.  This small program
illustrates what I am trying to do.  Is anyone else out there trying
to do this kindof thing?

----------------------------- cut here ------------------------------
200 200 translate
/Helvetica-Bold findfont 32 scalefont setfont
-30 100 moveto
(Graphics or Text)show
244 244 scale
/i false def
72 72 true [72 0 0 -72 0 72]
{
  i
  {/i false def <555555555555555555>}
  {/i true def  <AAAAAAAAAAAAAAAAAA>}
  ifelse
}imagemask
showpage
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