[geos-devel] BUFFER(0): JTS and GEOS difference

[strk at refractions.net]

On Thu, Aug 04, 2005 at 01:41:17PM -0400, dblasby at openplans.org wrote:
> 
> >What GEOS version?
> 
>  POSTGIS="1.0.0" GEOS="2.1.1" PROJ="Rel. 4.4.9, 29 Oct 2004" USE_STATS
> DBPROC="0.3.0" RELPROC="0.3.0"

Would this test show your problem ? I mean, should second
numinteriorrings give a different number from first ? (table
daves has been loaded with the single geom you sent)

select postgis_full_version();
select numinteriorrings(geom) from daves;
select numinteriorrings(buffer(geom,0)) from daves;

This are my results:

	POSTGIS="1.1.0CVS" GEOS="2.1.3" PROJ="Rel. 4.4.8, 3 May 2004" USE_STATS DBPROC="0.3.1" RELPROC="0.3.1"
	8
	8

	POSTGIS="1.0.3" GEOS="3.0.0" PROJ="Rel. 4.4.8, 3 May 2004" USE_STATS DBPROC="0.3.0" RELPROC="0.3.0"
	8
	8

	POSTGIS="1.1.0CVS" JTS="1.7.0" PROJ="Rel. 4.4.8, 3 May 2004" USE_STATS DBPROC="0.3.1" RELPROC="0.3.1"
	8
	8

--strk;