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From: morrow@cpsc.ucalgary.ca (Mike Morrow)
Newsgroups: comp.lang.postscript
Subject: image command
Summary: multiple images on one page
Keywords: image
Message-ID: <2166@cs-spool.calgary.UUCP>
Date: 25 Nov 89 15:39:55 GMT
Sender: news@calgary.UUCP
Reply-To: morrow@enel@unca![ubc, alberta] (Bill Morrow)
Organization: U. of Calgary, Calgary, Alberta, Canada
Lines: 32

I am new to PostScript, and would like some help with the following
problem:
I am trying to show two (or more) grey-scale images on a page.
The following code segment only results in the first image being printed:

/picstr 4 string def
/imagetest
  {2 2 8 [2 0 0 -2 0 2]
    {currentfile picstr readhexstring pop}
    image 
  } bind def
----- scaling and translation
  imagetest
  ff 00 cc 88

--- scale and translate for 2nd image
  imagetest
  00 ff cc 44

showpage
restore

Any ideas why? Is it what I am doing here, or a problem with the
interpreter? I am trying this on a Sun laserwriter. It also does not
work with Sun's NeWs windowing system and the psh function. Thanks 
for help.
Bill