[GRASS-user] r.in.gdal for importing categorical ArcGIS binary rasters

[manuel.martin]

On 02/14/2014 05:08 PM, Markus Metz wrote:
> On Wed, Feb 12, 2014 at 5:05 PM, manuel.martin
> <manuel.martin at orleans.inra.fr> wrote:
>> Hi all,
>>
>> I tried to import an ArcGIS binary raster (corine land cover for the French
>> territory) with three fields on each pixels (VALUE, COUNT and CODE_06) using
>> the r.in.gdal command. The import works just fine, except that in the
>> resulting raster, in GRASS, I only get one field, which seems to be the
>> VALUE field (and not the CODE_06 field, which I am interested in, and which
>> is a categorical field, although coded with integers).
> r.in.gdal will soon support import of category labels such as those
> stored in the CODE_06 field. You can then inspect the labels with
> r.category. GDAL supports reading and writing of raster attribute
> tables, so far only the color rules stored in a raster attribute table
> are imported, but I plan to add import of labels to r.in.gdal. Note
> that this applies only to GRASS 7.
>
> Markus M

Good to hear that ;-). I will wait for the next release of r.in.gdal 
(meanwhile I did import clc vector layers with v.in.ogr and later 
managed the category labels with v.to.rast).

All the best,           Manuel
>
>> Is there a way to produce a resulting raster with all the fields of the
>> initial ArcGIS layer, or alternatively to choose one unique field? Also, is
>> there a limitation on categorical fields. For instance, what if instead of
>> integer corine land cover codes I have literal labels, i.e. levels of my
>> categorical field coded with strings?
>>
>> Cheers, Manuel
>>
>> --
>>
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----------------0----0------
INRA - InfoSol
Centre de recherche d'Orléans
2163 Avenue de la Pomme de Pin
CS 40001 ARDON
45075 ORLEANS Cedex 2
tel : (33) (0)2 38 41 48 21
fax : (33) (0)2 38 41 78 69
http://www.gissol.fr
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