[GRASSLIST:5015] surface roughness

Carlos Henrique Grohmann de Carvalho guano at usp.br
Wed Nov 20 14:57:26 EST 2002

Does anyone know how I can make a surface roughness map?
the map is made by dividing the area into square inuts, and then calculating 
the ratio beetwen the real area and the planar area of each cell.
the basic problem is how to calculate the real area of the surface in each 


tks in advice.

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

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