On Fri, Dec 12, 2014 at 1:43 PM, Martin Album Ytre-Eide <[email protected]> wrote: > Hello! > > I have airborne gamma measurements obtain in lines. The spatial distance > between the 'points' along the line is 50m (e-w direction) and the spatial > distance between the lines is 1000m (n-s direction) > > I am currently experimenting with the v.surf.bspline function - setting > ew_step=100 and ns_step=1000. I am having trouble setting the ew_step any > lower.....? I am also using the smoothing parameter lambda_i. > > If anyone have some interpolation tips with this type of data - I would be > happy to hear about it.
While I am not familiar with this kind of data I wonder if anisotrophy is involved. If yes, then you may also check http://grass.osgeo.org/grass70/manuals/v.surf.rst.html with theta=float Anisotropy angle (in degrees counterclockwise from East) scalex=float Anisotropy scaling factor Markus _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
