[GRASSLIST:5339] drainage and lineament density maps

[Carlos Henrique Grohmann de Carvalho]

Hello all,
 

 
So, I'm trying to make a drainage (and a lineament) density map. To do this 
I think I could use r.mask and r.stats to calculate the total lenght of 
streams channels or anything else within a 500x500m cell. My problems are:
 

 
1 - (this should be simple): how to create this mask. it is a raster map 
with 500m resolution, were each cell has a unique value (total area=2912 
cells).
 

 
2 - is there any way to make the entire process a little more 'automatic'?  
I mean, can I calculate all at once or should I set the mask for each cell?
 

 
thanks in advance.
 

 

 

 
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   Carlos Henrique Grohmann de Carvalho - Guano   
 
       Geologist  -   MSc Student IGc-USP 
 
   Linux User #89721  PGP key: www.keyserver.net
 
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