On 1/27/2016 10:05 PM, Marco Patzer wrote:
Hi,

some months ago the withshading, withfromshadecolor etc. have apparently been
replaced by the more general withshademethod, withshadevector,
withshadecolors, etc. methods.

I have issues converting the old withshading code to the withshademethod
version. The old code had no problems shading to transparent:

\definecolor [trans] [a=multiply, t=.5, s=.5]
\starttext
\startMPcode
   path p; p:=fullsquare xyscaled (8cm, 8cm);
   fill p
     withshading("linear", ulcorner p, llcorner p)
     withfromshadecolor \MPcolor{black}
     withtoshadecolor   \MPcolor{trans};
\stopMPcode
\stoptext

The new code appears to work in general, but only if no shading to
transparent is being used:

\definecolor [trans] [a=multiply, t=.5, s=.5]
\starttext
   \startMPcode
     % works
     fill fullcircle scaled 10cm withcolor \MPcolor{trans};

     fill fullsquare xyscaled (15cm, 15cm)
       withshademethod "linear"
       withshadevector (0,1)
       % works
       withshadecolors (red,\MPcolor{blue})
       % fails
       %% withshadecolors (red,\MPcolor{trans})
       ;
   \stopMPcode
\stoptext

How to make transparent shadings work with the new mechanism?

      withtransparency (1,.5)


Marco
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