[geos-devel] Re: [postgis-users] ST_Contains doesn't work?

[Paul Ramsey]

I just confirmed this behavior. true/true on geos 2.2 true/false on  
geos 3.0.
Please file this at http://trac.osgeo.org/geos, it's real, and it's  
not right.

P

On Jan 17, 2008, at 7:35 PM, KXK wrote:

> SELECT
> ST_Contains(
> GeomFromText('POLYGON((0 0,0 10,10 10,10 0,0 0))', -1),
> GeomFromText('POLYGON((5 5,5 6,6 6,6 5,5 5))', -1) );
>
> returns TRUE
>
>
> But,
>
> SELECT
> ST_Contains(
> GeomFromText('POLYGON((0 0,0 11,11 10,10 0,0 0))', -1),
> GeomFromText('POLYGON((5 5,5 6,6 6,6 5,5 5))', -1) );
>
> returns FALSE
>
> I thought the above would also return TRUE.
>
>
> Is this behavior of ST_Contains correct?
>
> [VERSION INFORMATION]
> OS: fc6
> PostgreSQL: 8.2.4
> PostGIS: 1.2
> GEOS: 3.0.0
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