Hi,

The following sample code is working well in the \startMPpage ~ \stopMPpage, but is not working in the \startMPcode ~ \stopMPcode.

The error message is 

\textfont0 is undefined (character 63)

l.6 \setstrut\strut $A$

If I remove “$” from the code, it is also working in \startMPcode ~ \stopMPcode.

Is there anything which I have to set for \startMPcode?

Best regards,

Dalyoung

%%%%%%%%
\startMPcode{doublefun}
%\startMPpage
numeric count, temp[], tt, minus, u; u := 1cm;
path p,q,r;
pair A,B,C,D;
string varName, ss, pos[];
p := unitsquare xyscaled (8u,3.5u);
draw p;

pos[0] := "bot";
pos[1] := "rt";
pos[2] := "top";
pos[3] := "lft";
varName := "yxwz";
count := 0;
pickup pencircle scaled 5pt;

for i = 0 upto 3: 
    drawdot (point i of p);
    draw lmt_text[
        text = "$" & char(65+i) & "$",
        anchor = pos[i],
        offset = 2pt,
        position = point i of p,  
    ];
endfor;
%\stopMPpage
\stopMPcode