[Gdal-dev] Re: ENVI and raster attributes/color support

[Frank Warmerdam]

Gao wrote:

>I have a related question. Some formats have an associated value 
>attribute table, e.g.
>ESRI GRID has VAT, ERDAS Imagine image has descriptor table, etc. 
>Does GDAL
>support or plan to support these value attribute tables in its 
>object model and API?
>  
>
Peng,

There is no "standard" way of handling such data with the exception of 
when category
(class) names can be extracted and returned by GetCategoryNames().  The 
rest of such
information would naturally be returned as metadata though I haven't 
done so in either case.

Best regards,
-- 

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