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[Maposmatic-dev] [bug #36244] GEOS Intersection() threw an error while r

From: Étienne Loks
Subject: [Maposmatic-dev] [bug #36244] GEOS Intersection() threw an error while rendering some cities and bounding boxes
Date: Wed, 18 Apr 2012 18:48:56 +0000
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.3) Gecko/20100101 Firefox/10.0.3 Iceweasel/10.0.3

Follow-up Comment #1, bug #36244 (project maposmatic):

The basic request is correct (I have checked all polygons involved with
ST_IsValid function).

So I have installed PostGIS 2.0 to see if it fixes the failing query (this
kind of error is generally corrected with new versions).
It doesn't by the error is more precise:
TopologyException: side location conflict

After some googling I have found that to correct this kind of error we should
clean up a bit the polygons by using ST_Buffer
( with a radius equal to
This doesn't work.

PS: in PostGIS 2.0 some function have changed like GeomFromText which is now
ST_GeomFromText. Some queries in ocitysmap need to be change to work with this
new version.


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