[OSGeo-Discuss] How to interpolate rasters at each vector point?

Alex Mandel tech_dev at wildintellect.com
Mon Aug 12 18:43:00 PDT 2013

On 08/12/2013 12:14 PM, Moskovitz, Bob at DOC wrote:
> Hello List,
> I have 3 rasters and one point feature.  I would like to use either nearest neighbor and bilinear interpolation on these rasters at each point.  I see that I can use the GRASS-GIS's v.sample<http://grass.osgeo.org/grass64/manuals/v.sample.html> to solve this problem, but I was hoping to find a way to do this without having to create a GRASS mapset for each area I am working on.  Anyone have any ideas?
> Thanks in advance!
> Robert Moskovitz
> California Geological Survey
> Seismic Hazards Zonation Program

QGIS Point sampling plugin? Postgis 2 can now do this too, but it's
quite a bit slower right now.
I'm confused about the interpolation role in this, does that just apply
to cases where a point lands on the edge between pixels?


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