[GRASS-user] using mapcalc in a python script

[Glynn Clements]

Ned Horning wrote:

> I am working on converting a shell script to python and ran into a 
> problem I haven't been able to figure out using the r.mapcalc command. 
> Can someone let me know how to write the following command using python. 
> The command creates a GRASS MASK layer:
> 
> r.mapcalc "MASK=if(($cloudResampName < 0.01000),1,null())"

	import grass.script as grass

	...

	grass.mapcalc("MASK=if(($cloudResampName < 0.01000),1,null())",
	              cloudResampName = cloudResampName)

The first argument to the mapcalc function is a template (see the
Python library documentation for string.Template). Any keyword
arguments (other than quiet, verbose or overwrite) specify
substitutions.

-- 
Glynn Clements <glynn at gclements.plus.com>