MetaFun - Pragma ADE

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The smoothed operation is a less subtle one, since it operates on the bounding box and thereby can
result in a different shape.
path p ; p := ((1,0)--(2,0)--(2,2)--cycle) xysized (4cm,2cm) ;
drawpath p ; drawpoints p ;
p := (p shifted (5cm,0)) smoothed .5cm ;
drawpath p ; drawpoints p ;
The next one, simplified, can be applied to paths that are constructed automatically. Instead of
testing for duplicate points during construction, you can clean up the path afterwards.
path p ; p :=
((0,0)--(1,0)--(2,0)--(2,1)--(2,2)--(1,2)--(0,2)--(0,1)--cycle)
xysized (4cm,2cm) ;
drawpath p ; drawpoints p ;
p := simplified (p shifted (5cm,0)) ;
drawpath p ; drawpoints p ;
A cousin of the previous operation is unspiked. This one removes ugly left overs. It works well
for the average case.
path p ; p :=
((0,0)--(2,0)--(3,1)--(2,0)--(2,2)--(1,2)--(1,3)--(1,2)--(0,1)--cycle)
xysized (4cm,2cm) ;
drawpath p ; drawpoints p ;
p := unspiked (p shifted (5cm,0)) ;
drawpath p ; drawpoints p ;
There are a couple of operations that manipulate the path in more drastic ways. Take randomized.
path p ; p := fullsquare scaled 2cm ;
drawpath p ; drawpoints p ;
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