Ben, > > What's wrong with OGC simple feature definitions? Too simple for > your purposes?
Well, briefly analysing this point, I would say storing data in a non topological way may not be a problem, as far as Grass handles the format and finally, per se, can deal with spatial relationships between features of a vector map (adjacency, containment, overlapping, and so on). My point of view on vector model (perhaps we are sliding towards a new topic right now) is that topological structure is helpful mainly for : * detecting digitizing errors, * easily performing spatial analysis, * significantly reducing map storage volumes. But for my personal needs (particularly dealing with both space and time variability data mapping) I admit that non-topological models can be a good way to handle data... Vincent _______________________________________________ grass-dev mailing list grass-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-dev
