[postgis-users] Intersection errors out with null directed edge

[Andreas Laggner]

Hi Chris,

as i had this errors i installed postgis with GEOS 3.0, and such an 
errors never occurs again! I am not sure, but postgis 1.3.1 can be built 
with GEOS 2.2 too......just run the query select postgis_full_version(); 
and check your version of GEOS.

cheers      Andreas


Chris Hermansen schrieb:
> Hi folks;
>
> I had this problem today:
>
> AssertionFailedException: EdgeRing::computePoints: found null Directed
> Edge
>
> I see in the archives that there are others who have suffered this, back
> in 2006 and then in 2005, but there don't seem to be any offerings of
> techniques to either repair the code or the data - and based on the
> error above, I'm not sure which is ultimately at fault.
>
> Does anyone have some more up-to-date thought on this?
>
> I'm running postgis-1.3.1 on Ubuntu with the packaged postgresql-8.2
> installed.
>
> Thanks in advance!
>   


-- 
Dipl. Geoökologe Andreas Laggner
Institut für Ländliche Räume (LR)
Bundesforschungsanstalt für Landwirtschaft (FAL)

Institute of Rural Studies
Federal Agricultural Research Centre (FAL)

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D-38116 Braunschweig

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