Hello, I'm wondering how does r.mapcalc compute the value of a new pixcel if the resolution have been reduced before (i.e. the pixcel is larger). Is it an average ?
I did a simple test with a 10*10 pixcel raster. I reduced the resolution to 5*5 and made a new raster with r.mapcalc "newrast=oldrast*1" but the result was not an average but the higher value of the four underlying pixcels. I did then the same operation with a more coarser resulution and it seemed to be ok. Could someone explain this? Thanks _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
