On Mon, May 17, 2010 at 11:25:56AM -0400, Frank Warmerdam wrote: > Folks, > > I am creating a GEOS Point from 2D WKB input, then fetching back the > CoordinateSequence and interogating it's dimension. I get "3". > > Looking through the code there does not seem to be a real effort to preserve > dimension for coordinate sequences, at least with the > CoordinateArraySequence > implementation. Is this intentional?
The interface was added to later make a real effort, but none is made at this time indeed. When non-empty you could check for IsNan(Z) but when empty you can't tell.. > As the Z coordinate is NaN I'll try and adapt my code to watch for that as > a clue to dimension but it is not entirely clear to me why dimension is not > currently preserved. PostGIS extracts dimension from postgis format, then converts, does the thing and converts back to same dimension of input. --strk; () Free GIS & Flash consultant/developer /\ http://strk.keybit.net/services.html _______________________________________________ geos-devel mailing list geos-devel@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/geos-devel