What's the correct way of piping this to MetaFun? Putting
DefaultRuleThickness := \defaultrulethickness;
into each "\startuseMPgraphic{}" block works, but how can I define this globally? Moving it into "\startMPinclusions" creates a scope problem … see also the other thread about BodyFontSize etc.
\def\defaultrulethickness{\the\fontdimen8\textfont\plusthree}
\startMPinitializations DefaultRuleThickness := \defaultrulethickness; \stopMPinitializations
This works like a charm! Now I'm a bit confused though as to which definitions need this "MPinitializations" block and which ones can/should go to "MPinclusions". For example, a subsequent --- \startMPinclusions medium := DefaultRuleThickness; thick := 1.5medium; \stopMPinclusions --- doesn't work. However, color definitions for instance seem to be OK there. Could you give me a hint? Thanks, Oliver