[gdal-dev] Formats that support RAT's?

[Ivan Lucena]

> From: even.rouault at spatialys.com
> To: gdal-dev at lists.osgeo.org
> Date: Tue, 28 Apr 2015 22:58:16 +0200
> Subject: Re: [gdal-dev] Formats that support RAT's?
> 
> Le mardi 28 avril 2015 22:49:23, jramm a écrit :
> > It seems GDAL will always let you create a Raster Attribute Table (in
> > memory) but may fail when writing to disk depending on whether the format
> > supports it?
> > 
> 
> A lot of format that relies on the PAM(Persistant Auxiliary Metadata)Dataset base class will serialize it in a .aux.xml file.
> 
> > I can't seem to find any information anywhere on what formats support
> > RAT's? Is there a list I can refer to ??
> 
> From the result of "grep -r SetDefaultRAT frmts/ ", the answer is Idrisi, GeoRaster, KEA and HFA.

The RST format (Idrisi driver) doesn't really support RAT. That was included in the driver because, software ***, could not read GDAL Category Names at that time, but it could read read it as RAT. Don't ask me why.

> 
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