Le 7 mai 13 à 09:51, Marco Patzer a écrit :
\startuniqueMPgraphic{polygoneregulier}{sides}
drawoptions (withpen pencircle scaled 2pt);
numeric u ; u:=1*cm ;
numeric n ; n:=\MPvar{sides};
pair a[];
a[0]:=(0,3u);
path polygone[] ;
for i=1 upto n :
a[i]:=a[0] rotatedaround(origin,i*360/n) ;
polygone[i]:=a[i-1]--a[i];
draw polygone[i]; endfor;
draw fullcircle scaled 6u withcolor blue;
\stopuniqueMPgraphic
%% \polyreg{<number>}
\define[1]\polyreg
{\setupMPvariables[polygoneregulier][sides=#1]%%
\uniqueMPgraphic{polygoneregulier}}
\starttext
\dontleavehmode
\dorecurse{9}{\polyreg\recurselevel\space}
\stoptext
Thanks a lot Marco ! I have to think carefully on your way : I don't
understand
all these commands yet.
Roland
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