[GRASS-user] Area Extraction tools

GRASS GRASS user
1

Dear GRASS users,
I download a DEM file( SRTM geotiff) that I opened in GRASS 6.4.1
One problem I am facing is that I want to extract a part (my area of interest) of this DEM
I don’t know how to proceed

Yada
Thank You in advance!

2

Hi Yada,

If you have a raster map with your area of interest you can use
r.mask …
r.mapcalc “DEM_clip=DEM”

or

g.region rast=mask_file
g.region res=DEFINE DESIRED RESOLUTION
r.mapcalc “DEM_clip=DEM”

I hope this helps.

milton

2011/7/27 Yada Elisabeth <yadaelisabeth@gmail.com>

Dear GRASS users,
I download a DEM file( SRTM geotiff) that I opened in GRASS 6.4.1
One problem I am facing is that I want to extract a part (my area of interest) of this DEM
I don’t know how to proceed

Yada
Thank You in advance!

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