Hamish wrote: > Carlos wrote: >> I was just reading an interesting paper about the DEST algorithm to >> poduce TINS, and I was wondering how are TIN-related stuff in GRASS? I >> never needed, but.. it is possible? to generate a real TIN? > > TINs are just xyz points joined together, e.g. with v.delaunay. > http://www.ian-ko.com/resources/triangulated_irregular_network.htm > > > I had thought there was a script on the wiki add-ons page, but I don't > see it there now. (to do v.delaunay + v.distance to apply elevation > value to triangle centroid?) Maybe google could find it. > > > r.refine, again from Laura Toma's group: > http://www.bowdoin.edu/~ltoma/research.html
Just regarding TIN refinement, there's Shewchuk approach which I suspect may represent a state-of-the-art in the field [1]. [1] http://www.cs.cmu.edu/~jrs/jrspapers.html#dtstreamn Maciek _______________________________________________ grassuser mailing list [email protected] http://grass.itc.it/mailman/listinfo/grassuser
