Hi Oyvind, there no 3D in ISO SQL/MM part 3. If you want real 3D, you have to define volumetric objekts. PostGIS support SQL/MM part 3.
Gr Ralf Am Donnerstag 16 September 2010 14:03:09 schrieb Oyvind Idland: > Hello, > > been taking a look at "Adam's 2.5D simple features proposal" at the OGR > website. > > Question: Why not adopt the existing ISO SQL/MM part 3 standard ? > > The SQL/MM standard is an extension to the existing WKB/WKT by OGC. > > The extensions includes Z and M geometries, and even arcs > (CircularString/CompoundCurve etc). > > > regards, > > > Oyvind Idland > _______________________________________________ > gdal-dev mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/gdal-dev > _______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
