[GRASS-user] windowing / cropping very large raster layer

GRASS GRASS user
1

Hi list,

I should crop a small area out of a large raster layer (3GB) to make it
more manageable. I don't seem to find a quick way to do this.

Is there a function that just takes, xy or column row input to extract a
small subset and write it to a new (independent) layer?

Kind regards,
Koen

2

1) g.region set to smaller region;
2) r.mapcalc small=large

Maris.

2008/2/29, Koen Hufkens <koen.hufkens@ua.ac.be>:

Hi list,

I should crop a small area out of a large raster layer (3GB) to make it
more manageable. I don't seem to find a quick way to do this.

Is there a function that just takes, xy or column row input to extract a
small subset and write it to a new (independent) layer?

Kind regards,
Koen
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