Dear Grass users,
I am using r.flow to generate hillslope flow paths over a high
resolution DEM. I am actually only interested in a limited number of
these paths, originating at some selected hilltop points.
r.flow computes flow paths over the whole DEM, and in order to get the
vectors I am interested in I would need to run the computation over the
whole region (with skip=1) and select afterward some of these flow
lines from the output, which is computationally prohibitive on my DEM
(potentially millions of lines and I am only interested in a few 1000s
of them).
Is there way to force r.flow to limit the computation to selected flow
starting points?
Thanks in advance,
Vincent
--
Vincent Godard
CEREGE - OSU Pytheas
Aix-Marseille Université
Europôle Méditerranéen de l’Arbois - BP 80
13545 Aix-en-Provence cedex 04, France
[email protected]
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