[NTG-context] filling overlap ?

Mikael P. Sundqvist mickep at gmail.com
Sun Oct 7 13:19:28 CEST 2018


On Sun, Oct 7, 2018 at 1:10 PM Floris van Manen <vm at klankschap.nl> wrote:
>
> Could someone point me to te way as how to fill only the overlap of three paths using metafun ?
>
> path p ; p := fullsquare xscaled 10mm yscaled 12mm superellipsed .7 ;
> path q ; q := fullsquare xscaled  9mm yscaled 11mm superellipsed .7 ;
> q := q shifted (3mm, -2mm);
> path r ; r := fullsquare xscaled  8mm yscaled 10mm superellipsed .7 ;
> r := r shifted (0mm, -4mm);
> draw p ;
> draw q ;
> draw r ;
>
>
>
> Thanks
> .Floris
>
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Hi!

This is something similar as in page 304 of the manual
http://www.pragma-ade.com/general/manuals/metafun-p.pdf

\startMPpage
path p ; p := fullsquare xscaled 10mm yscaled 12mm superellipsed .7 ;
path q ; q := fullsquare xscaled  9mm yscaled 11mm superellipsed .7 ;
q := q shifted (3mm, -2mm);
path r ; r := fullsquare xscaled  8mm yscaled 10mm superellipsed .7 ;
r := r shifted (0mm, -4mm);
path pr,pqr;
pr = buildcycle(p, r);
%fill pr withcolor 0.5white;
pqr = buildcycle(q,pr) ;
fill pqr withcolor darkyellow;
draw p ;
draw q withcolor darkred;
draw r withcolor darkblue;
\stopMPpage

/Mikael


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