[GRASSLIST:1291] Re: combining two raster maps

[Glynn Clements]

Uttam Kumar wrote:

>        I have a raster map of a location. I have also a raster map showing 
> the latitudes and longitudes in degrees.
> Both of them are georeferenced. I want to combile both the raster maps so 
> that I can get an image which shows both he location area
> and the latitudes and longitudes marked on it. How to do it? Can any body 
> help me.

Use r.patch. This requires that the overlay map has nulls where it is
supposed to be transparent; if you are using any other value (e.g.
zero), you will need to change it to null using e.g. r.null.

-- 
Glynn Clements <glynn.clements at virgin.net>