8 Jan
2010
8 Jan
'10
9:55 p.m.
Kef didn't specify whether he wanted to merge 2 polygons with holes or N polygons with holes. I would expect it is the latter.
I'm merging N polygons without holes into a set of polygons that may have holes. Actually, to be more specific, I'm only merging them at the edges; polygons that overlap, rather than merely touch, are rejected before the merge process. - Kef