On Tue, 2008-03-18 at 21:49 -0700, Michael Barton wrote: > On Mar 18, 2008, at 9:39 PM, Helena Mitasova wrote: > > > Michael - I have added an example from the book at the bottom of > > this page - please try it and let me know whether it works. > > http://skagit.meas.ncsu.edu/~helena/grasswork/grassbookdat07/ > > ncexternal/demo.txt > > > > Please keep in mind that r.resample* is for reinterpolation of > > continuous data to a different resolution not for interpolation > > from scattered data (see the equations in the Appendix on what it > > does) (r.surf.idw is designed for scattered data input in raster > > format). You should convert your points from raster to vector > > points and use the v.surf* modules to interpolate. > > > > I hope this helps and let me know if the examples don't work
Thanks. It's clear now. > > > > Thanks Helena. The issue that I ran into today (embarrassingly with > my class) is that of the v.surf.*modules, v.surf.bspline does not > work (I reported this sometime back), v.surf.rst crashes and brings > down the entire GUI (this is new), leaving only v.surf.idw as the > only functional interpolation routine in todays SVN trunk. > > Michael Michael, just out of curiousity: is your initial input data vector (points) or raster (scattered pixels)? Thank you in advance, Nikos _______________________________________________ grass-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/grass-user
