On Wednesday 04 July 2007 08:41, Glynn Clements wrote: > "Carlos \"Guâno\" Grohmann" wrote: > > Interesting. > > Why r.slope.aspect uses > > > > dx = ... / (4 * ewres); > > > > while r.shaded.relief uses > > > > dx = ... / (8 * ewres); > > > > ?? > > Oops. It should be 8; the ewres/nsres values are actually the > distances between the centres of the top/bottom rows and left/right > columns in the 3x3 window, which are two rows/columns apart. IOW, the > 4*ewres should have been 4*(2*ewres) = 8*ewres, ditto for nsres.
Yikes, does this mean that previous calculations are now wrong? dylan _______________________________________________ grass-dev mailing list [email protected] http://grass.itc.it/mailman/listinfo/grass-dev
