[GRASS-user] r.carve stalling or not working properly...

GRASS GRASS user
1

I'm trying to use r.carve for the very first time, but I can't make it
work as it stalls even with not so big region settings, and common
stream network density.
In case a restric the region to a narrower area, after a long time the
work seems done, but the resulting DEM appears carved only at few
sparse locations...
Any hints?

The command (on grass 6.4.svn, Ubuntu 8.04, Intel(R) Core(TM)2 Duo CPU
T7300@2.00GHz, 2GB RAM):
r.carve rast=dem50_affossato_zonaSW@CRA vect=strsard1@CRA
output=dem50_affossato_zonaSW_done depth=3

image of region:
http://www.geospatial.it/allegri/r.carve.png

Region:
north: 4332764.49417744
south: 4321770.67395324
west: 459755.27933916
east: 472908.29124672
nsres: 49.97191011
ewres: 50.01145212
rows: 220
cols: 263
cells: 57860

2

G. Allegri pisze:

I'm trying to use r.carve for the very first time, but I can't make it
work as it stalls even with not so big region settings, and common
stream network density.
In case a restric the region to a narrower area, after a long time the
work seems done, but the resulting DEM appears carved only at few
sparse locations...
Any hints?

Slightly shameless, but have you tried my v.breach from GRASS AddOnns?

Maciek

--
Maciej Sieczka
www.sieczka.org

3

have you tried my v.breach from GRASS AddOnns?

I didn't know it. I will try and let you know...
Thanks!