Fabrice Couvreur mailto:fabrice1.couvreur@gmail.com 24. Januar 2016 um 12:39 Hello everyone, I tested the code and it does not work: I get one page with buttons for animation is not working. thank you, Fabrice
\def\MyGraphics#1{% \unexpanded\def\MyGraphics#1{% \startMPcode path p,q; p:=fullcircle scaled 72; L:=length p; N:=20; q:=subpath (0,#1/N*L) of p; draw q withcolor red; fill fullcircle scaled 3 shifted point length q of q withcolor blue; setbounds currentpicture to unitsquare shifted (-0.5,-0.5) scaled 75; \stopMPcode}} You have nested definition which is wrong,the correct way is one of the following ones (2 or 3 are recommended):
\unexpanded\def\MyGraphics#1% {\startMPcode ... \stopMPcode} or \define[1]\MyGraphics {\startMPcode ... \stopMPcode} or \starttexdefinition unexpanded MyGraphics #1 \startMPcode ... \stopMPcode \stoptexdefinition Wolfgang