[postgis-users] Polygons Intersection -> LineStrings

Arnaud Lesauvage thewild at freesurf.fr
Fri Jan 13 02:34:38 PST 2006

Hi all !

I have a strange result for the intersection of two valid 
polygons. The geometry returned by the intersection is a 
GeometryCollection of 3 LineStrings and 1 polygon !

One of the Polygons is within the other one (Within(P2,P1)=true), 
so I assume that the result of the intersection should by the 
contained Polygon itself.

I can post the query, but with the WKT representations of the 
Polygons it is a 18kB text file. Can I attach it to an email to 
the list, or can I paste it into my message ?

Note : PostGIS 1.1.0 win32 binary from MCA, PostgreSQL 8.1 
official win32 binary, Win2000 Server.

Thanks a lot for your help on this !


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