Easy GRASS 5 question

[Andrew E Long]

Seems to me that you want to explore r.mapcalc!
Andy

On Tue, 4 Jan 2000 bob at math.umn.edu wrote:

> 
> I'm trying to understand how to use GRASS as a read/write mapping 
> utility.  The challenge for me is to learn what to do in order to 
> read a pixel from a map layer, process it in some way, and then 
> write it back out with a new value to the same map layer.  The on-line
> docs have not yielded the dark secret of this relatively low-level
> operation set.  Could somebody point me in the right direction?  Or
> should I start looking at the source code for some related commands?
> 
> Thanks.  BTW, tangent now compiles, and thanks.
> 
> Adios,
> Chris
> -- 
> C.S. Cornuelle 
> School of Mathematics/MCIM, University of Minnesota
> 206 Church St. SE, Minneapolis, MN 55455
> (612) 626-8930v, (612) 624-2333f, bob at math.umn.edu
> Ferventer Vestite
>