[postgis-users] Intersection problems

Markus Schaber schabi at logix-tt.com
Tue Mar 8 06:03:09 PST 2005


Hi, Sean,

Sean M. Montague schrieb:
> I posted a few days ago about some intersection problems I was having,
> and speculated that it may be doughnut poly problems.  Further
> investigation shows that the doughnuts are not necessarily the problem.
> It appears that if the bb representing what I want to intersect splits a
> poly with a doughnut hole in it, postgreSQL will not even execute the
> SQL statement if the doughnut hole is intersected also.  It is difficult
> to explain, so I have exported a jpeg showing the poly and the bb
> representing what I am trying to export.  If it'll help, let me know and
> I will send the jpeg.  Thank you.

Please send it. Can you also send us WKT or HexWKB rep of those two
geometries?

Markus

-- 
Markus Schaber | Logical Tracking&Tracing International AG
Dipl. Inf.     | Software Development GIS

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