[GRASS-user] IDW (or similar) and cost surface

G. Allegri giohappy at gmail.com
Thu Dec 8 13:39:58 EST 2011

Thanks Hamish and Facundo!
I will give a try to the updated v.surf.icw soon ;)
If I find some time I will try a python porting anyway, as a personal
exercise with the new grass7-python facilities.

Thanks Facundo, I was also looking for similar implementations with
kriging. The same for icw, I will read and have a look to the code you
shared ASAP.


2011/12/7 Facundo Muñoz <famuvie at alumni.uv.es>

> I have implemented a while ago a cost-based kriging that I used exactly
> in that way.
> You can see the paper and sample code here:
> http://www.geeitema.org/guenmap/index.jsp?opcion=resultados&idioma=en
> There is a GRASS script that helps to compute the cost-based distances,
> and then there is an adapted geoR library that performs the cost-based
> kriging computations.
> Let me know if you need help in applying it to your case.
>    ƒacu.-
> El mar 06 dic 2011 18:11:52 CET, G. Allegri escribió:
> > Does anyone know of implementations of an IDW (or other distance
> > weighted interpolators) which can use a cost surface as a
> > supplementary weighting factor?
> > I'm exploring solutions to do spatially constrained interpolation, and
> > modelling barriers through cost surfaces could be a way to do it...
> >
> > thanks,
> > giovanni
> >
> >
> > _______________________________________________
> > grass-user mailing list
> > grass-user at lists.osgeo.org
> > http://lists.osgeo.org/mailman/listinfo/grass-user
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