[postgis-users] ERROR: pt_in_ring_2d: V[n] != V[0]

[Paul Ramsey]

Somehow you've snuck an unclosed polygon into the system. They don't
usually get in, because the parser disallows them.
This will make dumping a test data tricky at best...
P.

On Thu, Dec 8, 2011 at 8:42 AM, Stephen Woodbridge
<woodbri at swoodbridge.com> wrote:
> Hi all,
>
> I'm getting this error:
>
> select gid from parcels where not isvalid(the_geom);
> ERROR:  pt_in_ring_2d: V[n] != V[0] (-83.5001 38.244 != -83.5001 38.244)
>
> ********** Error **********
>
> ERROR: pt_in_ring_2d: V[n] != V[0] (-83.5001 38.244 != -83.5001 38.244)
> SQL state: XX000
>
> select gid, st_isvalidreason(the_geom) from parcels where not
> isvalid(the_geom);
> NOTICE:  IllegalArgumentException: Invalid number of points in LinearRing
> found 3 - must be 0 or >= 4
> NOTICE:  IllegalArgumentException: Invalid number of points in LinearRing
> found 3 - must be 0 or >= 4
> ERROR:  POSTGIS2GEOS conversion failed
>
> ********** Error **********
>
> ERROR: POSTGIS2GEOS conversion failed
> SQL state: XX000
>
> "POSTGIS="1.5.1" GEOS="3.2.0-CAPI-1.6.0" PROJ="Rel. 4.6.1, 21 August 2008"
> LIBXML="2.6.32" USE_STATS"
>
> This just seems very bad in that isvalid() and st_isvalidreason() should
> never fail, IMO.
>
> -Steve
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