FYI
Illustration:
https://sites.google.com/site/openfiles2/home/valuetoolproblem2.jpeg
Test data:
https://sites.google.com/site/openfiles2/home/samplingtoolproblem.zip

Agus

---------- Forwarded message ----------
From: Agustin Lobo <[email protected]>
Date: 2010/12/2
Subject: Discrepancy between value tool, spectral profile and Point
sampling tool  for large data sets (2)
To: Ghislain Picard <[email protected]>,
[email protected], [email protected], [email protected]


> Hi!
>
> I've found that value tool reports values in a different order than spectral 
> profile and Point Sampling tool
> for very large data sets (this one 72 layers). See in the attachment
> the value of the first band, for example, in Value tool (118),  while 
> spectral profile and the values for that point extracted by Point Sampling 
> Tool are different.
> The sequence 228, 225, 248 ... in Value tool starts in layer 50
>
> I've checked in R (where the file is made) and Value Tool is right.
>
> The most confusing is that a 3-band raster made with the first 3 bands
> works the same for all 3 tools: 118, 243, 236
>
> I'm trying to make a little 3x3x72 raster for testing and will report to
> qgis lists as well.
>
> Agus
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