[GRASS-user] Cropping maps

[Marco Alicera]

Dear list,
I am trying to crop a raster map into a smaller area, but I am failing.

This wiki page link <https://grasswiki.osgeo.org/wiki/Cropping_maps> is
quite clear:
"Make boundary into mask using r.mask
<https://grass.osgeo.org/grass72/manuals/r.mask.html> then copy raster
source to new map (g.copy
<https://grass.osgeo.org/grass72/manuals/g.copy.html>). All cells outside
of the mask will be omitted from the new copy."

r.mask vector=myarea
g.copy --overwrite raster=OldRasterWithBigArea,NewRasterWithSmallArea
r.mask -r

I expected all cell outside were not going to be omitted, but replaced by
NULL.

Regards
--
Marco
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