[Gdal-dev] RFC 15: Band Masks

[Frank Warmerdam]

Simon Perkins wrote:
> This all seems reasonable to me. Just to clarify: in the case where 
> there is a genuine binary valued bitmaks per raster band, will 
> GetMaskFlags() return 0? i.e. is it intended that there is no specific 
> flag for GMF_PER_BAND?

Sy,

PER_BAND is now the assumption unless PER_DATASET is set.

So yes, GetMaskFlags() would normally return zero when there is a
"real" band specific mask not derived from nodata, and not just the alpha.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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