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Re: Rainbow printing

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From Michael Unger <spam.to.unger@spamgourmet.com>
Newsgroups comp.lang.postscript
Subject Re: Rainbow printing
Date Mon, 15 Jul 2013 19:06:39 +0200
Organization not that I'm aware of ...
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On 2013-07-15 17:40, "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?

"smooth shading" with a few sub-sections? "red" to "orange" to "yellow"
to "green" and so forth? PostScript operator "shfill" combined with a
"shading dictionary"; see the fine PLRM [1], section 8.2, "Operator
Details".

Michael


[1] <http://www.adobe.com/products/postscript/pdfs/PLRM.pdf>

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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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