breakPoly
Breaks the given polygons the given boundaries. Boundaries may be point marks
or other polygons. An intersection parameter is computed for every intersection
with a boundary and a series of trims is output. The same objects may be given
as the boundaries and the polygons to break. This is sometimes the easiest way
to use the function: to break a group of polygons everywhere they cross just select
the group both as the boundaries and the polygons to break.
polygons :
ObjectSet
Polygons to break
boundaries :
ObjectSet
Boundaries to break with