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On 1/20/2022 2:59 PM, Vincent Hennebert via ntg-context wrote:
Hi,
Say I’m writing a document containing many independent MetaPost figures. I don’t want to bother with enclosing each and every graphics in a ‘begingroup...endgroup’ with the appropriate ‘save’ statement. But I don’t want variables from previous graphics to leak into following ones either.
Like this:
% SOF \starttext
Text about some topic.
\startMPcode u=1cm; draw (-u, u)--origin--(u ,u); \stopMPcode
Now on to another topic.
\startMPcode u=2cm; % Triggers an error: Inconsistent equation (off by 28.34645) draw (-u, u)..origin..(u ,u); \stopMPcode
\stoptext % EOF
Is that achievable? you could do
save u; u = 1cm; or u := 1cm; or numeric u; u := 1cm; or you could use a dedicated instance (normally not needed) Hans ----------------------------------------------------------------- Hans Hagen | PRAGMA ADE Ridderstraat 27 | 8061 GH Hasselt | The Netherlands tel: 038 477 53 69 | www.pragma-ade.nl | www.pragma-pod.nl -----------------------------------------------------------------