[GRASS-dev] scale and offset in raster maps

[andrea antonello]

Hi Hamish,
thanks for your answer.

I just wanted to know if the internal GRASS binary format has this
metadata inside. At that point I guess that the answer is no?

Thanks,
Andrea



On Mon, Sep 15, 2008 at 2:59 PM, Hamish <hamish_b at yahoo.com> wrote:
> Andrea antonello wrote:
>> I'm not talking about resampling, btu instead of threating of a single
>> value. In scientific data often you could store integer maps for
>> several reasons and there is an offset and scale value that have to be
>> applied to get the usable physical floating point value of the map.
>> Scale and offset are defined in formats as for example netcdf and I
>> thought I saw this also in GRASS in the past.
>
> see  http://grass.osgeo.org/wiki/MODIS#Processing
>     http://grass.osgeo.org/wiki/MODIS#Processing_3
>     etc.
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> Hamish
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