Alessandro Ranellucci fe42427a54 Ported Polygon->is_valid() and ExPolygon->is_valid()		2013-08-26 23:27:51 +02:00
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Object.pm	Ported Polygon->is_valid() and ExPolygon->is_valid()	2013-08-26 23:27:51 +02:00
Region.pm	Rename materials to regions	2012-09-23 02:52:31 +02:00