> 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. > I also need to learn about it soon, so if I will find > anything I let you know. _______________________________________________ geos-devel mailing list geos-devel@geos.refractions.net http://geos.refractions.net/mailman/listinfo/geos-devel