On Wed, Nov 26, 2008 at 02:47:04PM +0000, Mark Cave-Ayland wrote: > Please feel free to suggest any solution as to how GEOS should create > OGC-compliant geometries in 3 dimensions :) Uhm. Should refresh my memory. IIRC there was no OGC doc about 3d when I worked on adding that support in GEOS. Does GEOS trunk still do it ? --strk;