[GRASS-user] r.in.mat - How can I specify a No Data Value?

[Bernhard Dobmeier]

Hello everyone,

i'd like to export an elevation raster from Octave to Grass.
>From my available data, I can't provide a height value for every cell,
so I need to use a No Data value here.
The import of the .mat file works fine, as described in the manuals.
Only the No Data Value (set to -9999 in Octave) isn't interpreted
correctly, and that gives me an artificial "Mariana Trench" around my
defined area ;)

Where can I set the No Data value to be used? Can I define it for a
specific raster map? A standard value for the whole mapset? Or do I have
to use a special value in Octave/Matlab in the first place?

Thanks for your help!

Cheers

Bernhard
-- 
--

Dipl.-Ing.
Bernhard Dobmeier

Bayerisches Zentrum für Angewandte Energieforschung e.V.
ZAE Bayern

Abteilung 1 : Technik für Energiesysteme und Erneuerbare Energien

                      -Arbeitsgruppe Biomasse-

 

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