Hi,
I defined a function using MetaFun, and call it to draw a figure.
It is OK when I call it once.
But there is an error when it runs the same function second time.
(it stops when it call fap(3,2) after fap(2,2))
I have no idea what is wrong and how to fix it.
Would you please tell me what I miss?
Thank you.
Best regards,
Dalyoung
%%%%%%%
\startbuffer[test]
numeric u; u := 1cm;
path p[];
def fap(expr n, m) =
numeric size; size := m*u;
for i = 0 upto (n*n-1):
z[i] = ((i mod n),(floor(i/n)))*size;
drawdot z[i] withpen pencircle scaled 5pt withcolor blue;
endfor;
enddef;
fap(2,2);
fap(3,2);
\stopbuffer
\starttext
\processMPbuffer[test]
\stoptext
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