On Sun, Apr 7, 2013 at 1:23 PM, Tim Michelsen <[email protected]> wrote: >>> r.what [1] just prints out. >>> > Isn't the right tool v.sample [2]? >> r.what extracts values from one or more raster maps at locations given >> by coordinates. >> >> v.what.rast uploads raster values at positions of vector points to the table. > But why is there v.sample if all other commands have similar functionality?
v.sample is useful for cross-validation after surface interpolation: it samples a raster map with nearest neighbor, bilinear or bicubic, compares the sampled raster value to a point attribute and writes out the difference in a new vector map. No other module can do that Markus M _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
