[Qgis-developer] QgsGeometry::intersection returns UnknownGeometry

[Massimo Endrighi]

Given:
featureA - polygon
featureB - polygon

geomA = featureA.geometry()
geomB = featureB.geometry()
if geomA.intersects (geomB):
    intersection = geomA.intersection(geomB)
    
the new geometry intersection has type() == 3 (UnknownGeometry) in some
circumstances BUT intersection.Area() is always correct.
After moving featureA or featureB by a small delta the intersection is
returned correctly.

Any idea?
Massimo



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