Probably you changed resolution of the rasrter itself before runing r.aspect.slope.
Has Maris said, try to first run the module with DEM native resolution, and then, if you need a better resolution, set it in yout region and then run r.resample. André 2012/3/13 Maris Nartiss <[email protected]> > Hello, > are You certain that it's not just a problem with data? > > Have You run Your analysis at DEM native resolution? Try to g.region > rast=MyDEM before calculating aspect. > Also how reprojection was done? > > Maris. > > 2012/3/12 leonidas <[email protected]>: > > I run r.slope.aspect on Aster DEM (reproject in greek grid). But I get > some > > strange results (like fishnet). > > Here is a screenshot of Aspect : > > http://www.geographer.gr/downloads/aspect.png > > http://www.geographer.gr/downloads/aspect.png > > > > > > -- > > View this message in context: > http://osgeo-org.1560.n6.nabble.com/Strange-r-slope-aspect-output-of-Aster-dem-tp4571755p4571755.html > > Sent from the Grass - Users mailing list archive at Nabble.com. > > _______________________________________________ > > grass-user mailing list > > [email protected] > > http://lists.osgeo.org/mailman/listinfo/grass-user > _______________________________________________ > grass-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/grass-user > -- --------------------------------------------------------------- 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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