[GRASSLIST:5546] Re: Using "maskmap" on raster data

[Eric G. Miller]

On Wed, Feb 12, 2003 at 06:48:06PM +0100, Jan Kohout wrote:
> Have a nice day,
> 
>     I'd like to ask about using some "maskmap" on existing map. I've got
> binmary mask describing some important area. How can I "thinner" some
> raster to contain only data from this area? (other data should be NULL or
> zero)

r.mask
echo "copy = original" | r.mapcalc

BTW, "Have a nice day" is usually used as a closing/farewell.  I think
you want "Good Day", for a opening/greeting ;-)

-- 
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