[GRASS-user] v.sample output to text file

Nikos Alexandris nikos.alexandris at felis.uni-freiburg.de
Mon Oct 13 13:14:55 EDT 2008


On Mon, 2008-10-13 at 14:38 -0200, Daniel Victoria wrote:
> Hi all,
> 
> I have a set of 23 Modis NDVI images and I want to sample all images
> at specific points (50 points). What I was looking for was something
> like v.sample but, instead of generating a new vector with the raster
> value, output the values to a text file. I though about using
> i.spectral but it does not work on Windows. Another option would be
> v.what.rast but I'd have to create a lot of columns in the vector file
> first. Is there a quick way to do what I want, or should I make a loop
> and use v.what.rast?
> 
> Daniel

Daniel,

this reminds me either starspan or a combination of a MASK in a loop
with r.stats (which I have used for something similar). Or maybe I do
not understand what you need.

Cheers,
Nikos



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