I would like a
vardef macro to return the pair of a picture and a bounding box. I don't want to use the
setbound operator, because as soon as I do that, I cannot access the components of the picture anymore with
I found metapost vardef returning multiple values but that is about returning multiple values of the same numeric type. Is it possible to have
vardef return a set of (picture, path) or (picture, picture) in some way? If not, I need to make two
vardef macros for each result type.
I tried many things, amongst which:
vardef Foo( expr w, h) % define pic pic end group,begingroup % define pic pic endif picture foo; foo = Foo( 2, 4);