[GRASS-user] map calculator in python loop

[Frank David]

Hi,

What do you want to do with "k" ?

Can you send what return gscript.verbose(( " %s = %s * %s ")  % (r , r , c))

Frank
Le 12/12/2018 à 17:34, Alessandro Sebastiani a écrit :
> I get the same error after trying with your suggestion! I tried to 
> define rasters in different ways, like
> >> c = ["costante"] ,
> but nothing seems to change
>
> Il giorno mer 12 dic 2018 alle ore 10:22 Moritz Lennert 
> <mlennert at club.worldonline.be <mailto:mlennert at club.worldonline.be>> 
> ha scritto:
>
>     On 12/12/18 12:59, Alessandro Sebastiani wrote:
>     > dear all,
>     > i'm dealing this time with r.mapcalc. I have different rasters
>     which i
>     > grouped using g.list.
>     > Now r_list contains all my raster. I want to multiply those
>     rasters to
>     > another raster (called "costante")  in order to obtain a new
>     map, that i
>     > want to call as r followed by the letter "k"
>     > Here it is what i've done:
>     > import grass.script as gscript
>     >  >>> r_list = gscript.read_command("g.list" , type = "rast"
>     > ).strip().split("\n")
>     >  >>> c = " costante"
>     >  >>> for r in r_list:
>     >  >>>     gscript.mapcalc ( " %s = %s * %s "  % ((r+"k") , r , c))
>
>     Try
>
>     " %sk = %s * %s "  % (r , r , c) "
>
>     Moritz
>
>
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