[metapost] accessing control points

[Stephan Hennig]

Palle Jørgensen schrieb:
> Stephan Hennig <mailing_list at arcor.de> writes:
> 
>> is there a way to access control points of a bezier curve segment in
>> MetaPost other that "show"ing a path on the console?
> 
> There are the commands 'precontrol' and 'postcontrol':

Thanks!  I already wondered if I didn't use such macros before.  After I
didn't find something matching for "controls" or "control points" on
groups.google and (the subjects of) this list archive I came up here.
Unfortunately, the MetaPost manual only mentions precontrol and
postcontrol in appendix A.  Thanks again!

Best regards,
Stephan Hennig