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Re: Rainbow printing

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From Helge Blischke <h.blischke@acm.org>
Newsgroups comp.lang.postscript
Subject Re: Rainbow printing
Followup-To comp.lang.postscript
Date Mon, 15 Jul 2013 18:56:32 +0200
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Cecil Westerhof wrote:

> I would like to print things with a rainbow stripe. So the top would
> be red, the bottom would be violet and the other colours would be in
> between. Is it possible to do this?
> 

It can be done using the shfill operator which requires a shading dictionary 
as the only parameter on the operand stack.

See the PLRM section 4.9.3 "Shading Patterns" for the details.

Helge

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Thread

Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-15 17:40 +0200
  Re: Rainbow printing abeddie <abeddie@hotmail.com> - 2013-07-15 09:54 -0700
    Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-15 20:56 +0200
      Re: Rainbow printing Mark Carroll <mtbc@bcs.org> - 2013-07-15 20:19 +0100
        Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-16 01:48 +0200
          Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-17 11:36 +0200
  Re: Rainbow printing Helge Blischke <h.blischke@acm.org> - 2013-07-15 18:56 +0200
  Re: Rainbow printing Michael Unger <spam.to.unger@spamgourmet.com> - 2013-07-15 19:06 +0200
    Re: Rainbow printing Michael Unger <spam.to.unger@spamgourmet.com> - 2013-07-15 22:07 +0200
  Re: Rainbow printing John Deubert <john@acumentraining.com> - 2013-07-16 16:34 -0700
    Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-17 09:10 +0200
  Re: Rainbow printing sjprouty3765@gmail.com - 2013-07-17 15:08 -0700
    Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-18 05:22 +0200
  Re: Rainbow printing luser- -droog <mijoryx@yahoo.com> - 2013-07-17 15:22 -0700
    Re: Rainbow printing luser- -droog <mijoryx@yahoo.com> - 2013-07-17 16:55 -0700
    Re: Rainbow printing Cecil Westerhof <Cecil@decebal.nl> - 2013-07-18 05:22 +0200

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