On Thu, Mar 25, 2010 at 2:45 PM, Margherita Di Leo <[email protected]> wrote: > Hi List! > > I often use the tool r.watershed and I always wonder that it seems to be not > affected by the issue of flat areas . How it manages the surface flows in > low/zero slope areas?
AFAIK it uses a least-cost algorithm (A^T search) to figure out the *best* way. The man page contains a reference to Chuck Ehlschlaeger's document about this method. Ah, I see that the link is now http://chuck.ehlschlaeger.info/older/IGIS/paper.html will update the manual page. Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
