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Groups > comp.lang.postscript > #1045

Re: shfil

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Am 13.11.2012 20:05, schrieb Ross Presser:
> On Tuesday, November 13, 2012 11:59:13 AM UTC-5, Cecil Westerhof wrote:
>
>> That is exactly what I found and use. But there should be more
>> functions (otherwise FunctionType would be redundant). I would like an
>> explanation about those, but I can not find it.
>
> I couldn't find any explanation, but I did find an example using
> /Functiontype 3

and one for type 4, also available with PSTricks:

%!PS-Adobe-2.0
%%BoundingBox 0 0 285 285
%
/ED { exch def } bind def
/GTriangle {
   gsave
   /mtrx matrix currentmatrix def
   /colorA ED /colorB ED /colorC ED 	% save the colors
   /yA ED /xA ED               		% save the origin
   xA yA translate
   rotate       		        	% \psk@gangle
   /yB ED /xB ED /yC ED /xC ED   	% save other coordinates
   /ds [                % save data in a array
      0 0 0 colorA aload pop     	% fd x y xr xg xb
      0 xB xA sub yB yA sub colorB aload pop
      0 xC xA sub yC yA sub colorC aload pop
%     1 xC xB add yB colorA aload pop  	% for use with 4 points ABCD
   ] def
   newpath
   <<
   /ShadingType 4           % single Gouraud
   /ColorSpace [ /DeviceRGB ]
   /DataSource ds
   >>
   shfill
   closepath
   mtrx
   setmatrix grestore} def

284.52744 0.0 142.26372 284.52744 0. 0.0 0.0
[ 0 0 1]
[ 0 1 0]
[ 1 0 0]
GTriangle
stroke


Herbert

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Thread

shfil Cecil Westerhof <Cecil@decebal.nl> - 2012-11-11 11:30 +0100
  Re: shfil "abeddie@hotmail.com" <abeddie@hotmail.com> - 2012-11-13 07:50 -0800
    Re: shfil Cecil Westerhof <Cecil@decebal.nl> - 2012-11-13 17:56 +0100
      Re: shfil "abeddie@hotmail.com" <abeddie@hotmail.com> - 2012-11-13 10:12 -0800
        Re: shfil Cecil Westerhof <Cecil@decebal.nl> - 2012-11-13 20:10 +0100
      Re: shfil Ross Presser <rpresser@gmail.com> - 2012-11-13 11:05 -0800
        Re: shfil Herbert Voss <Herbert.Voss@alumni.tu-berlin.de> - 2012-11-13 21:24 +0100
          Re: shfil Ross Presser <rpresser@gmail.com> - 2012-11-13 21:43 -0800
  Re: shfil John Deubert <john@acumentraining.com> - 2012-11-15 09:28 -0800
  Re: shfil "luser.droog" <luser.droog@gmail.com> - 2012-11-16 18:29 -0600

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