[GRASS-user] Interpolate grid(s) based on vector.

Moskovitz, Bob@DOC Bob.Moskovitz at conservation.ca.gov
Thu Aug 1 12:46:49 PDT 2013

Hello Grass List,

I have a set of rasters (ground acceleration, modal mag., and distance) that I want to interpolate based on the location of my point features (borehole location) and update my point feature with the values from this interpolation.  I see that v.what.rast might help, but I'm not sure what kind of interpolation it uses (probably nearest neighbor?).  I also see that v.sample can be used, but it does not work with geographic coordinate system locations.  So, I was hoping that the list might have other ideas in solving my problem.

Thanks in advance!


Robert Moskovitz
California Geological Survey
Seismic Hazards Zonation Program

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