Dear Hans,

Thank you for the reply.
Since  \startMPcode … \stopMPcode form is used in the manual, I think that it is OK to use it for all cases.

Thank you again.

Best regards,

Dalyoung


> 2020. 4. 17. 오전 5:01, Hans Hagen <j.hagen@xs4all.nl> 작성:
> 
> On 4/16/2020 8:36 PM, Jeong Dal wrote:
>> 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 “$” from the code, it is also working in \startMPcode ~ \stopMPcode.
>> Is there anything which I have to set for \startMPcode?
> 
> \starttext ... \stoptext
> 
> or
> 
> \startMPpage[instance=doublefun]
> 
> \stopMPpage
> 
>> Best regards,
>> Dalyoung
>> %%%%%%%%
>> \startMPcode{doublefun}
>> %\startMPpage
>> numeric count, temp[], tt, minus, u; u := 1cm;
>> path p,q,r;
>> pair A,B,C,D;
>> string varName, ss, pos[];
>> p := unitsquare xyscaled (8u,3.5u);
>> *draw p;*
>> *
>> *
>> pos[0] := "bot";
>> pos[1] := "rt";
>> pos[2] := "top";
>> pos[3] := "lft";
>> varName := "yxwz";
>> count := 0;
>> pickup pencircle scaled 5pt;
>> for i = 0 upto 3:
>> drawdot (point i of p);
>> draw lmt_text[
>> text = "$" & char(65+i) & "$",
>> anchor = pos[i],
>> offset = 2pt,
>> position = point i of p,
>> ];
>> endfor;
>> %\stopMPpage
>> \stopMPcode
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> 
> 
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> 
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