Raster bands could have methods: HasNoDataValue and ClearNoDataValue

[Ari Jolma]

GDALRasterBand class is lacking methods for checking if the band has a no data value and clearing the no data value. For example currently it is possible to set the no data value but impossible to clear it except by changing it something else. The current method for checking if there is a no data value assigned is a bit vague: "an out of range value will generally be returned".

Ari

[warmerdam]

Ari,

To find out if a nodata value exists, call GetNoDataValue() and pass in the bSuccess flag, and check it on return.

Indeed there is no way to clear nodata (and a number of other similar items) which is annoying. I'll leave this open as an enhancement request for that part though I'm not sure how I'd do it without adding a bunch of new functions which I hate doing.

[Jukka Rahkonen]

Feels like clearing nodata would be a good option for gdal_edit.py ​http://www.gdal.org/gdal_edit.html.

[Kyle Shannon]

Fixed with RFC 58: Removing nodata value