Moritz Lennert wrote: > > Also note that the calculation involves multiplying by the resolution. > > You mean internally by mapcalc, or that I should include resolution into > the calculation ?
Internally. The point is that if you have e.g. a 100m x 100m square, and you set rows = cols = 300, so each cell is 1/3rd of a metre, *all* of the cell centres will suffer from rounding error, even when the row and column are multiples of 6, as the calculation will multiply by (a binary approximation to) 1/3, not divide by 3. -- Glynn Clements <[EMAIL PROTECTED]> _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
