Hello, I have a technichal doubt. I used* v.to.rast.constant *to tranform a line vector layer to raster. This meant i have a raster with NULL values. The output raster is to be used in map algebra operations.
So my question is: Is it advisable to set the Null cells to 0? I know r.calc works with NULL values, and I know that NULL is not the same as 0, however I never understood what difference does it make if any. Considering these two scenarios what do I win and what do I loose? Any enlightening will be very aprecciated! Thanks, André Mano --------------------------------------------------------------- Associação Leonel Trindade SOCIEDADE DE HISTÓRIA NATURAL Apartado 25 2564-909 Torres Vedras Portugal Sede e Biblioteca: rua Cavaleiros da Espora Dourada, 27A 2560 Torres Vedras Laboratório de Paleontologia e Paleoecologia: Polígono Industrial do Alto do Ameal 2565-641 Ramalhal http://alt-shn.blogspot.com www.alt-shn.org
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