[geos-devel] [GEOS] #560: GEOSGetCentroid EMPTY returns COLLECTION EMPTY rather than POINT EMPTY

[Sandro Santilli]

On Fri, Jun 22, 2012 at 10:27:37AM -0700, Martin Davis wrote:
> Makes sense.  I've changed JTS to have this behaviour as well.  Also
> for interiorPoint.

I saw the InteriorPointArea class still returns non-null from
getInteriorPoint, as it returns a newly created Coordinate with
values from result of centre(getEnvelopeInternal()).

Or maybe it's dereferencing NULL ?
In other words, what's supposed to be returned by EMPTY.getEnvelopeInternal ?

--strk;


> 
> 
> On 6/22/2012 8:14 AM, GEOS wrote:
> >#560: GEOSGetCentroid EMPTY returns COLLECTION EMPTY rather than POINT EMPTY
> >------------------------+---------------------------------------------------
> >  Reporter:  strk        |       Owner:  geos-devel@…
> >      Type:  defect      |      Status:  new
> >  Priority:  major       |   Milestone:  3.4.0
> >Component:  Default     |     Version:  3.3.4
> >  Severity:  Unassigned  |    Keywords:
> >------------------------+---------------------------------------------------
> >  Not very important, but as ST_Buffer is guaranteed to return an areal
> >  geometry (POLYGON EMPTY in the empty case) I guess Centroid should also
> >  return a typed POINT no matter emptyness (for consistency)
> >
> _______________________________________________
> geos-devel mailing list
> geos-devel at lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/geos-devel

-- 

 Sent from our free software
 http://www.gnu.org/philosophy/free-sw.html