[GRASS-user] mosaic raster files

Hamish hamish_b at yahoo.com
Thu Jul 2 09:40:43 EDT 2009

> > use 'g.region rast=tile1,tile2,tile3,tile5' first to
> > set the computational region to the outside bounds of all
> > the tiles listed.

> Something against using g.region's "-a" flag?

If all tiles are from the same source and of the same type it
will not be needed, as bounds will line up exactly. The -a flag
is useful when resampling is not harmful (e.g. before v.to.rast).
But needlessly resampling is to be avoided.



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