rt_raster_replace_band()

rt_band rt_raster_replace_band	(	rt_raster	raster,
		rt_band	band,
		int	index
	)

Replace band at provided index with new band.

Parameters

raster	raster of band to be replaced
band	: new band to add to raster
index	: index of band to replace (0-based)

Returns

NULL on error or replaced band

Definition at line 1493 of file rt_raster.c.

                                                                  {
        rt_band oldband = NULL;
        assert(NULL != raster);
        assert(NULL != band);
 
        if (band->width != raster->width || band->height != raster->height) {
                rterror("rt_raster_replace_band: Band does not match raster's dimensions: %dx%d band to %dx%d raster",
                        band->width, band->height, raster->width, raster->height);
                return 0;
        }
 
        if (index >= raster->numBands || index < 0) {
                rterror("rt_raster_replace_band: Band index is not valid");
                return 0;
        }
 
        oldband = rt_raster_get_band(raster, index);
        RASTER_DEBUGF(3, "rt_raster_replace_band: old band at %p", oldband);
        RASTER_DEBUGF(3, "rt_raster_replace_band: new band at %p", band);
 
        raster->bands[index] = band;
        RASTER_DEBUGF(3, "rt_raster_replace_band: new band at %p", raster->bands[index]);
 
        band->raster = raster;
        oldband->raster = NULL;
 
        return oldband;
}

References rt_band_t::raster, RASTER_DEBUGF, rt_raster_get_band(), and rterror().

Referenced by RASTER_reclass(), RASTER_setBandPath(), RASTER_setPixelValuesGeomval(), rt_raster_gdal_rasterize(), and test_raster_replace_band().

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