Thanks Markus.
I did test with r.mapcalc novo_raster = if"(mi flat_map==0.0234)", but the map is not appropiate. I know the area of value (0.0234), but is not is equal in the novo_raster.
El 13/04/2011, a las 17:27, Markus Neteler escribió:
2011/4/13 Gaspar Reyes Póndigo <gos47@hotmail.com>:
Hello, Dear grass_user. My first forum participation in the grass_user list
email.
Welcome!
How to extract values of map raster with r.mapcalc? I need make new map
raster based on specific value of other raster.
Please take a look at the if() conditions:
http://grass.osgeo.org/grass64/manuals/html64_user/r.mapcalc.html
Therein is also a section EXAMPLES.
Markus