Kralidis,Tom [Burlington] wrote: >> Tom, >> >> I'm also interested in some info about internals of DWithin >> and Beyond operations. >> These both operations are supported by FDO >> (http://fdo.osgeo.org) but unfortunately I've not found much >> information about their specification. > > True. The only info I found was from FES 1.0.0, section 8.2: > > "The spatial operators DWithin and Beyond test whether the value of a > geometric property is within or beyond a specified distance of the > specified literal geometric value." > > So both DWithin and Beyond take as inputs a geometry and distance value.
Right. But I'd like to get more details, some math declarations or geometries examples. I asked on the FDO list about them: http://lists.osgeo.org/pipermail/fdo-internals/2007-May/001072.html Cheers -- Mateusz Loskot http://mateusz.loskot.net _______________________________________________ geos-devel mailing list geos-devel@geos.refractions.net http://geos.refractions.net/mailman/listinfo/geos-devel
