On 10/07/09 14:00, Margherita Di Leo wrote:
Hi Milton,
Thank you for answering,
I corrently use r.watershed to obtain my flow direction matrix
(drainage). I'm searching for a module in which I can put this
'drainage' in input, and a raster (or vector) with the river network in
input, to obtain in output a matrix in wich in each cell there is the
distance from the river, calculated on the basis of the path defined in
'drainage'.
Maybe by setting all cells other than the drainage paths to null ? Or by
using a mask which only leaves the drainage paths ? I don't know how
r.grow.distance handles null cells ?
In vector space you could maybe use v.distance upload=to_along...
Moritz
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