> On 22 Jun 2020, at 09:17, Otared Kavian <ota...@gmail.com> wrote: > > Hi Hans, > > After learning from you how to define an array of colors and paths, I would > like to know how is it possible to define a variable pen size. > In the following working example below, I would like to replace > > MyPens[j] := pencircle scaled 2pt ; > > by something like > > MyPens[j] := pencircle scaled (2+j) pt ;
MyPens[j] := pencircle scaled ((2+j)*pt); “pt” is just a multiplier variable in MetaPost. there is an implied multiplication operation, but that only works in bare-number cases. That is why you need (2+j)*pt The outer parentheses are to prevent MetaPost from interpreting your line as (pencircle scaled (2+j)) * pt; Best wishes, Taco ___________________________________________________________________________________ If your question is of interest to others as well, please add an entry to the Wiki! maillist : ntg-context@ntg.nl / http://www.ntg.nl/mailman/listinfo/ntg-context webpage : http://www.pragma-ade.nl / http://context.aanhet.net archive : https://bitbucket.org/phg/context-mirror/commits/ wiki : http://contextgarden.net ___________________________________________________________________________________
