[GRASS-user] How to combine rasters?

GRASS GRASS user
1

I have 3 rasters:
1. Lakes with value 2.5
2. Rivers with value 1
3. Mountains above 1000m with value 3
I need to combine the 3 rasters so as Lakes' values dominate on Rivers' and
Mountains' values and Rivers' values dominates on Mountains' values. How can
I achieve that? Is r.patch suitable for that? Where can I find any tutorial
with raster combination like that? Thank you for any help, Leonidas Greece
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2

On Sun, 2008-07-06 at 04:02 -0700, leonidas300 wrote:

I have 3 rasters:
1. Lakes with value 2.5
2. Rivers with value 1
3. Mountains above 1000m with value 3
I need to combine the 3 rasters so as Lakes' values dominate on Rivers' and
Mountains' values and Rivers' values dominates on Mountains' values. How can
I achieve that? Is r.patch suitable for that? Where can I find any tutorial
with raster combination like that? Thank you for any help, Leonidas Greece

Γεια σου Λεωνίδα.

g.manual r.patch and read the DESCRIPTION to understand the

"hierarchy" when patching.