[EMAIL PROTECTED] wrote: > On Thu, Mar 30, 2006 at 02:42:19PM -0800, Martin Davis wrote: >> I'm not sure why strk is making this comment. JTS/GEOS supports >> empty geometries of all types (as per the OGC SFS). > > I'm a bit PostGIS oriented. There's no support for EMPTY whatever in > PostGIS except GEOMETRYCOLLECTION. As always I'd follow JTS, so if > the plan is to support any kind of empty geom we should drop the > ::createEmptyGeometry() and ensure no memory violation is triggered > by EMPTY types *and* results are semantically correct.
Hi, Another idea, possible and simple way to handle empty geometries would be to add a boolean flag to the Geometry class - bool empty; Then, if this flag is set, the geometry is empty. Drawback: This approach requires to keep this flag synchronized with state of geometry to avoid situation when geometry is a non-empty set of points but the empty flag is set to true ;-) Cheers -- Mateusz Łoskot http://mateusz.loskot.net _______________________________________________ geos-devel mailing list geos-devel@geos.refractions.net http://geos.refractions.net/mailman/listinfo/geos-devel
