[GRASS-user] Python Script for changing raster values

[Christian Schwartze]

Following code could be one approach:

os.system("cat %s | r.recode input=map_a output=map_recl" % path_to_rules)

where path_to_rules is a previously created (temp) file containg the reclassifiying rules as for example:

1:1:1.1:1.1
2:2:7.5:7.5
3:3:0.4:0.4

Christian.




From: Luisa Peña 
Sent: Tuesday, September 07, 2010 12:37 PM
To: GRASS user list 
Subject: [GRASS-user] Python Script for changing raster values


Greetings 


I have a classification raster (with values that ranges from 1-20) and I need to reclassify them. I mean, to change (as an example):
1- > 255
2- > 100
3 -> 150


and I need to implement this on a Python script. What do you suggest to do? I mean, that is the most robust and easy way to implement this?
Thanks
Luisa


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