[GRASS-user] Re: [GRASS-dev] Re: another r.resamp.interp bug report

[Nikos Alexandris]

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