[GRASS-windows] grass_width, grass_heigt and grass_pngfile

Liu, Huili HLiu at ap.org
Fri Mar 2 15:27:46 EST 2012

Hi grass experts,

I am trying to create a python script to get an image file as below:

import os.path
import sys # the sys module [2]
from grass.script import core as grass # the core module [3]
def main():
    grass.run_command('d.his i=elevation_shade h=elevation')

if __name__ == "__main__": # this allows the script to be used as a module in other scripts or as a standalone script
    #options, flags = grass.parser() #

But I got the default image file name,  map.png with GRASS_WIDTH=640 and GRASS_HEIGHT=480.
Is there any way for me to setup  width and height and my image file name in grass.run_command?
I searched the doc for a while but I still can not get a correct syntax.

Thanks for an advance!

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