On Tue, Aug 23, 2005 at 07:48:31PM +1200, Simon O'Malley wrote: > I notice the notes say computation will be more accurate if performed > by the GEOS module. How do you check if it is using GEOS. My > postgis_full_version states that GEOS is enabled but is it using it > for centroid???? Yes! If GEOS is enabled there's no way to compute centroid w/out it. --strk;