On Thu, 3 May 2012, Marco wrote:
The wiki claims setting up an MPenvironment is enough to change the
font in MetaPost graphics:
\startMPenvironment%[global]
\switchtobodyfont [sans]
\stopMPenvironment
\starttext
This should be serif.
\startMPcode
draw textext("This should be in sans.");
\stopMPcode
\stoptext
However, this has no effect. All text is in default serif font. If
[global] is provided, all text is in sans font. I am aware of a
similar issue in a thread last year¹, but the solution didn't really
address the problem. textext("\sans This should be sans.") works
here, but the point is that the MPenvironment fails. Why is that?
Metapost now runs as a library. All the text is first typeset by ConTeXt
and metapost only knows the bounding box of the labels.
You can try (untested):
\starttext
This is serif
\switchtobodyfont[sans]
\startMPcode
draw textext("This should be sans");
\stopMPcode
\stoptext
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