[GRASS-user] r.watershed speed-up

GRASS GRASS user
1

We're definitely interested in giving this a try too.

Michael
____________________
C. Michael Barton, Professor of Anthropology
Director of Graduate Studies
School of Human Evolution & Social Change
Center for Social Dynamics & Complexity
Arizona State University

Phone: 480-965-6262
Fax: 480-965-7671
www: <www.public.asu.edu/~cmbarton>

On Jul 29, 2008, at 8:44 AM, <grass-user-request@lists.osgeo.org> wrote:

Date: Tue, 29 Jul 2008 15:24:20 +0200
From: ivan marchesini <marchesini@unipg.it>
Subject: [GRASS-user] r.watershed speed-up
To: Markus Metz <markus_metz@gmx.de>
Cc: grass-user@lists.osgeo.org
Message-ID: <1217337860.4462.46.camel@ivangeo>
Content-Type: text/plain

First results of one test I did: excellent!!!

1392776 cells dem with steep slopes but also plain areas

r.watershed.fast: 7 seconds
r.watershed: 4 min and 14 seconds

no difference at all between the two generated network paths...

markus: many thanks..

Ivan