[postgis-users] st_intersects() returns false with point and polygon that obviously intersect

[Sandro Santilli]

On Thu, Feb 24, 2011 at 12:58:24PM +1300, Craig de Stigter wrote:
> Hi list
> 
> This query returns false, but the box and point intersect:
> 
> select st_intersects('POINT(169.69960846592 -46.5061209281002)'::geometry,
> > 'POLYGON((169.699607857174 -46.5061218662,169.699607857174
> > -46.5061195965597,169.699608806526 -46.5061195965597,169.699608806526
> > -46.5061218662,169.699607857174 -46.5061218662))'::geometry);
> >  st_intersects

Does sound like a bug:

 st_relate | st_intersects | st_disjoint
-----------+---------------+-------------
 0FFFFF212 | f             | f

ST_Relate is correct, ST_Disjoint is correct, ST_Intersects is _wrong_

   I B E
   -----
 I 0 F F
 B F F F
 E 2 1 2

Could you please file a bug for this ?
 http://trac.osgeo.org/postgis

--strk;

  ()   Free GIS & Flash consultant/developer
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