> Yes, but the fundamental question here is: should the speed of these > operations be more important then their quality ?
The quality is always important. I think the question is: is topology always required to guarantee it? The answar, IMHO, is no. In that cases the quality doesn't depend on the data structure or the algorithm, but on the input data. The algorithm shouldn't alter the instrinsic quality of the information... This, of course, depends on what you're doing. A network analysis should never let be done on non-topo data! :) _______________________________________________ grass-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-dev
