> On 15 Mar 2020, at 11:22, Gerben Wierda <gerben.wie...@rna.nl> wrote: > > 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 pathpart. > > I found metapost vardef returning multiple values on StackExchange 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.
Sure, using that same endgroup,begingroup trick. But since there is no multi-assignment in metapost that doesn’t you help much. Either two separate vardefs or passing the to-be-assigned variable(s) as an extra argument(s) are generally more practical. Best wishes, Taco ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
