[gdal-dev] How do we know the number of raster bands of a WKT Raster object?

[Frank Warmerdam]

Jorge Arévalo wrote:
> Hello,
> 
> I have a doubt: I have a raster loaded in PostgreSQL with
> gdal2wktraster, and I'm not sure of the best way to know the number of
> raster bands the raster has. The fields "pixel_types" and
> "nodata_values" from raster_columns table are arrays with one element
> per raster band, so, counting the number of elements of one of these
> arrays, I can get the number of raster bands. But it doesn't seem to
> be a very "elegant" way. Do we have another way to do this?

Jorge,

I believe taking the count of values in the pixel_types array is the
correct approach to determining the number of bands.

Elegant is in the eye of the beholder.

Best regards,
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