Oliver Buerschaper wrote:
>>> 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

inclusions happen once, initializations for each graphic

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