Does MetaFun provide some macro to draw oriented paths? I
would like it to basically add a small arrow *in the middle*
of the path? Such a macro

draworiented somepath somespecs ;

would have to act like

drawarrow firsthalf(somepath) somespecs ;
draw secondhalf(somepath) somespecs ;

Is it available already, or should I roll my own?

Giuseppe "Oblomov" Bilotta

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