id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
13382	Bug in polygon OR operation with collinear points	k.daloukas@…	Lucanus Simonson	"When OR operation is performed between 2 non-overlapping polygons that contain collinear points with the same y coordinate, the resulting set is empty. However, if collinear points are removed, the resulting set contains the 2 polygons. 

If generic polygon_set_data objects are used, the OR operation works fine. The problem appears when polygon_90_set_data objects are used in order to increase efficiency of boolean operations."	Bugs	new	To Be Determined	polygon	Boost 1.66.0	Showstopper