[GRASS-user] v.dissolve and r.cost problems

GRASS GRASS user
1

On Apr 1, 2009, at 12:47 PM, <grass-user-request@lists.osgeo.org> wrote:

From: Paolo Cavallini <cavallini@faunalia.it>
Date: April 1, 2009 10:31:04 AM GMT-07:00
To: Colin Nielsen <colin.nielsen@gmail.com>
Cc: grass-user <grass-user@lists.osgeo.org>
Subject: Re: [GRASS-user] v.dissolve and r.cost problems
Reply-To: cavallini@faunalia.it

Colin Nielsen ha scritto:

However, if you're getting into the hours, I would think it's more
likely that your region settings changed. Check "g.region -p" to be
sure.

Even if I bring resolution down to a ridiculous amount, it still takes
forever:

GRASS > g.region -p
projection: 99 (Transverse Mercator)
zone: 0
datum: rome40
ellipsoid: international
north: 4833555.85595178
south: 4804093.9108328
west: 1651001.9360271
east: 1688830.00910873
nsres: 1015.92914203
ewres: 995.47560741
rows: 29
cols: 38
cells: 1102

I tested it on a fractal surface, as you suggested.
Is r.cost working for somebody?
All the best, and thanks.
--
Paolo Cavallini: http://faunalia.it/pc

Do you have a lot of null cells in your region?

Michael

2

Michael Barton ha scritto:

Do you have a lot of null cells in your region?

None. Tested also with a r.fractal surface, same results.
All the best.
--
Paolo Cavallini: http://faunalia.it/pc