Re: [NTG-context] Calculating a value in metapost, and using it in ConTeXt

27 May 2015


      On 27 May 2015 at 00:18, Hans Hagen  wrote:
...
On 5/26/2015 9:17 PM, Kate F wrote:
...
Hello,
Is it possible to calculate the position of something in Metapost, and
to export that value to TeX such that I can use it in setups and
things?
it depends on what you want to calculate
\startMPcalculation
    path p, q;
h := PaperHeight;
    w := PaperWidth;
p = (0, 0) -- (w, .5h);
    q = (0, h) -- (w, 0);
z0 = p intersectionpoint q;
passvariable("z",ypart z0) ;
\stopMPcalculation
\setuplayout
  [topspace=0pt,
   header=0pt,
   height=\MPrunvar{z}bp]
\showgrid
\starttext
    xyz:\MPrunvar{z}
\stoptext
Wonderful!

-- 
Kate