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

Moritz Lennert mlennert at club.worldonline.be
Fri Feb 21 05:00:13 PST 2014

On 21/02/14 11:30, Markus Metz wrote:
> On Fri, Feb 21, 2014 at 9:35 AM, Moritz Lennert
> <mlennert at club.worldonline.be> wrote:
>> On 20/02/14 22:14, Markus Metz wrote:
>>> I would not replace a working gdal version with a probably not working
>>> gdal version. Your gdalinfo reported a raster attribute table, not
>>> mine. You could double-check again if your gdalinfo still finds a
>>> raster attribute table, then import with r.in.gdal.
>> Out of curiosity: if a table contains several columns which one(s) is/are
>> imported and in what form do they appear in GRASS (I don't have a file here
>> to test myself) ?
> Each column has a dedicated usage. For "name" usage, the column is
> treated as category labels. For any of the color usages, the column is
> treated as corresponding red, green, or blue color. See also the gdal
> documentation [0]. Currently, r.out.gdal exports category labels or
> color rules to a raster attribute table with the new -t flag, and
> r.in.gdal automatically imports any information it finds.
> Markus M
> [0] http://www.gdal.org/gdal_8h.html#a27bf786b965d5227da1acc2a4cab69a1

So, IIUC you get the GFU_Name and the color information, but if the 
table contains several fields (which I guess will be of type 
GFU_Generic) these are ignored ?


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