[postgis-devel] GEOS centroid

Paul Ramsey pramsey at refractions.net
Wed Oct 29 07:14:13 PST 2003


No, the default centroid() function should automagically use the GEOS 
centroid function if USE_GEOS is available. Combine the two C functions 
with an ifdef on the USE_GEOS flag.
Paul

On Wednesday, October 29, 2003, at 06:07 AM, strk wrote:

> I've added a geoscentroid function to postgis.
> To enable it:
>
> CREATE FUNCTION geoscentroid(GEOMETRY)
>         RETURNS GEOMETRY
>         AS '$libdir/../libpostgis.so.0.8'
>         LANGUAGE 'C' WITH (isstrict);
>
> So far you explicitly decide which version to use (centroid or 
> geoscentroid).
> Let me know about further steps we should take ( automatic geos use 
> when
> available? )
>
> --strk;
>
> _______________________________________________
> postgis-devel mailing list
> postgis-devel at postgis.refractions.net
> http://postgis.refractions.net/mailman/listinfo/postgis-devel
>
      Paul Ramsey
      Refractions Research
      Email: pramsey at refractions.net
      Phone: (250) 885-0632




More information about the postgis-devel mailing list