Hi, 

I draw a figure using MetaFun and insert it \startplacefigure and \stopplacefigure.
(Sample file is listed below)
But, I got an error as following:

Missing \endcsname inserted

<to be read again> 
    
    \defcsname 
<macro> \mult_interfaces_get_parameters_item_okay 
    #1=#S#2,->\ifarguments \or \mult_interfaces_get_parameters_item_error {#1}\else \defcsname \m_mult_interfaces_namespace #1
    \endcsname {#2}\fi 
<macro> \mult_interfaces_get_parameters_item 
    #*#S#1,->\ifarguments \expandafter \gobbleoneargument \else \mult_interfaces_get_parameters_item_okay #1,


If I remove "\startplacefigure and \stopplacefigure”, then there is no error, but the figure is not centered.

Please tell me how to fix it.

Thank you for reading.

Best regards,

Dalyoung


\startbuffer[numbers]
path p,q;

p = unitsquare xyscaled(3,2) superellipsed .85 ;
q := p scaled 1cm;
draw q;
label.bot(textext("\naturalnumbers"), point 2 of q);

q := p scaled 1.5cm shifted (-.75cm,-.2cm);
draw q ;
label.bot(textext("\integers"), point 2 of q);

q := p scaled 2cm shifted (-1.5cm,-.4cm);
draw q;
label.bot(textext("\rationals"), point 2 of q);

q := p scaled 2.5cm shifted (-2.25cm,-.6cm);
draw q;
label.bot(textext("\reals"), point 2 of q);

q := p scaled 3cm shifted (-3cm,-.8cm);
draw q;
label.bot(textext("\Bbb C"), point 2 of q);
\stopbuffer
\starttext
\startplacefigure[location=none,\title=]
{\scale[scale=1400]{\processMPbuffer[numbers]}}
\stopplacefigure
\stoptext