[postgis-users] Contains failing
Kevin Neufeld
kneufeld at refractions.net
Wed Oct 15 09:09:52 PDT 2008
I don't get your results - I get TRUE in both cases.
What version of postgis/geos are you running?
-- Kevin
David Vaz wrote:
> Hi,
>
> Does anyone have a clue why this fails:
>
> select contains(geomfromtext('POLYGON((0 0,0 8,8 8,8 0,0 0),(3 3,5 3,5
> 5,3 5,3 3))'), geomfromtext('POLYGON((0 0,5 0,5 1,0 1,0 0))'))
> ;
> contains
> ----------
> f
> (1 row)
>
> Without the Hole in the polygon
>
> select contains(geomfromtext('POLYGON((0 0,0 8,8 8,8 0,0 0))'),
> geomfromtext('POLYGON((0 0,5 0,5 1,0 1,0 0))'))
> ;
> contains
> ----------
> t
> (1 row)
>
>
> And the Hole does not intersects the other polygon
>
> select intersects(geomfromtext('POLYGON((3 3,5 3,5 5,3 5,3 3))'),
> geomfromtext('POLYGON((0 0,5 0,5 1,0 1,0 0))'))
> ;
> intersects
> ------------
> f
> (1 row)
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