[GRASS-windows] grass_width, grass_heigt and grass_pngfile

[Liu, Huili]

It works. Thanks Markus for your help.
-Willie
________________________________________
From: grass-windows-bounces at lists.osgeo.org [grass-windows-bounces at lists.osgeo.org] on behalf of Markus Neteler [neteler at osgeo.org]
Sent: Sunday, March 04, 2012 4:22 AM
To: Glynn Clements
Cc: Liu, Huili; grass-windows at lists.osgeo.org
Subject: Re: [GRASS-windows] grass_width, grass_heigt and grass_pngfile

On Sat, Mar 3, 2012 at 5:15 PM, Glynn Clements <glynn at gclements.plus.com> wrote:
> Liu, Huili wrote:
>> I am trying to create a python script to get an image file as below:
...
>> 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.
>
>        import os
>        os.environ['GRASS_PNGFILE'] = filename
>        os.environ['GRASS_WIDTH'] = str(width)
>        os.environ['GRASS_HEIGHT'] = str(height)

Added in rudimentary form to the Wiki page:
http://grass.osgeo.org/wiki/GRASS_and_Python#Controlling_the_PNG_display_driver

(feel free to improve there, just requires registration in the Wiki)

Markus
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