Changes between Version 9 and Version 10 of rfc15_nodatabitmask


Ignore:
Timestamp:
Aug 21, 2007, 8:30:40 AM (17 years ago)
Author:
warmerdam
Comment:

fix

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  • rfc15_nodatabitmask

    v9 v10  
    3333The GDALRasterBand class will include a default implementation of !GetMaskBand() that returns one of three default implementations. 
    3434
    35  * If the band has a nodata value set, an instance of the new GDALNodataMaskRasterBand class will be returned.  !GetMaskFlags() will return zero (no flags set).
     35 * If the band has a nodata value set, an instance of the new GDALNodataMaskRasterBand class will be returned.  !GetMaskFlags() will return GNMF_NODATA.
    3636 * If there is no nodata value, but the dataset has an alpha band that seems to apply to this band (specific rules yet to be determined) and that is of type GDT_Byte then that alpha band will be returned, and the flags GNMF_PER_DATASET and GNMF_ALPHA will be returned in the flags.
    3737 * If neither of the above apply, an instance of the new GDALAllValidRasterBand class will be returned that has 255 values for all pixels.  The null flags will return GNMF_ALL_VALID.