rt_band_set_isnodata_flag()

rt_errorstate rt_band_set_isnodata_flag	(	rt_band	band,
		int	flag
	)

Set isnodata flag value.

Parameters

band	: the band on which to set the isnodata flag
flag	: the new isnodata flag value. Must be 1 or 0

Returns

ES_NONE or ES_ERROR

Definition at line 846 of file rt_band.c.

                                                  {
        assert(NULL != band);
 
        if (!band->hasnodata) {
                /* silently permit setting isnodata flag to FALSE */
                if (!flag)
                        band->isnodata = 0;
                else {
                        rterror("rt_band_set_isnodata_flag: Cannot set isnodata flag as band has no NODATA");
                        return ES_ERROR;
                }
        }
        else
                band->isnodata = (flag) ? 1 : 0;
 
        return ES_NONE;
}

References ES_ERROR, ES_NONE, and rterror().

Referenced by RASTER_setBandIsNoData(), RASTER_tile(), rt_band_set_pixel_line(), and rt_raster_generate_new_band().

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