[GRASS5] r.mapcalc and NULL question

Markus Neteler neteler at geog.uni-hannover.de
Mon Jan 15 13:04:26 EST 2001

Hi there,

maybe a r.mapcalc/NULL FAQ, but I don't get it...

Assume you have a streams map (streams contain values,
other cells=NULL). 

Now I want to add some values *everywhere* using r.mapcalc, but 
it is only added in those cells not containing a NULL value.

Any ideas how to overcome this problem?

Thanks in advance


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