[postgis-users] 3d Point-Polygon Intersection

[Jim Jim]

Hello,

I am a little puzzled by the following:

select asEWKT(ST_Intersection(
('POLYGON((0 0 0,4 0 0,4 4 0,0 4 0,0 0 0),(1 1 0,2 1 0,2 2 0,1 2 0,1 1 0))'),
('POINT(0 4 -1000)')
 ));

Result: "POINT(0 4 -500)"

Since the point is not in the polygon the intersection should be empty. Please let me know why this is behaving otherwise. If I am missing something, could you please let me know what would be the way to get the answer I was expecting?

Thank you!

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