Mwhei wrote:
> 
> Hello dear sir,.
>      I have a question to consult you.I want to know is there a  command  
> to  implement that  the cells values of  one raster  layer  to 
> minus  the cells values of another raster layer ? Would you please  give
> me some suggestions? Any help will be ok. Thank  you very much!
>                                                                               
>                                                                               
>         
> Sincerely yours,
>                                                                               
>                                                                               
>                       
> Yang
> 

You can do this with r.mapcalc. Please check
http://grass.itc.it/grass62/manuals/html62_user/r.mapcalc.html

r.mapcalc "newmap=oldmap1 - oldmap2"

Markus
-- 
View this message in context: 
http://www.nabble.com/Hello-dear-sir%2CI-have-a-question-to-consult-you.-tf4736257.html#a13544683
Sent from the Grass - Users mailing list archive at Nabble.com.

_______________________________________________
grassuser mailing list
grassuser@grass.itc.it
http://grass.itc.it/mailman/listinfo/grassuser

Reply via email to