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

[Chris Hermansen]

Andreas, Martin, thanks, that's the problem.

I got a new desktop recently and I guess I must have installed the
Ubuntu version of Geos rather than building from source.

Time for a small bleat in the Ubuntu direction before Gutsy comes out...

Thanks, sorry to waste everyone's time on this.

On Thu, 2007-13-09 at 11:31 +0200, Andreas Laggner wrote:
> 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!
> >   
> 
> 
-- 
Regards,

Chris Hermansen · mailto:clh at timberline.ca
tel:+1.604.714.2878 · fax:+1.604.733.0631
Timberline Natural Resource Group · http://www.timberline.ca
401 · 958 West 8th Avenue · Vancouver BC · Canada · V5Z 1E5

C'est ma façon de parler.