Re: [Therion] scaling a line thickness in Metapost

Apparently you can use "save" within a begingroup section to make variables local, so I am playing with that right now to see if I can work out how to use it.

Easy enough: def l_u_foo begingroup; %allow local variables to work save scale, bar, baz; %declare local variables string scale; if known ATTR_scale: scale:=ATTR_scale; else: scale:="m"; fi; ... endgroup; enddef; I tried using vardef instead, but couldn't get it to work. "save" actually temporarily saves the existing (global) value of a variable, then restores is after the endgroup. But it has the effect of creating a local variable.