rt_raster_clone()

rt_raster rt_raster_clone	(	rt_raster	raster,
		uint8_t	deep
	)

Clone an existing raster.

Parameters

raster	: raster to clone
deep	: flag indicating if bands should be cloned

Returns

a new rt_raster or NULL on error

Definition at line 1544 of file rt_raster.c.

References window::gt, pixval::nband, rt_raster_from_band(), rt_raster_get_geotransform_matrix(), rt_raster_get_height(), rt_raster_get_num_bands(), rt_raster_get_srid(), rt_raster_get_width(), rt_raster_new(), rt_raster_set_geotransform_matrix(), rt_raster_set_srid(), rtalloc(), rtdealloc(), and rterror().

Referenced by _rti_colormap_arg_init(), RASTER_colorMap(), RASTER_union_transfn(), rtpg_union_noarg(), and test_raster_clone().

                                                {
        rt_raster rtn = NULL;
        double gt[6] = {0};

        assert(NULL != raster);

        if (deep) {
                int numband = rt_raster_get_num_bands(raster);
                uint32_t *nband = NULL;
                int i = 0;

                nband = rtalloc(sizeof(uint32_t) * numband);
                if (nband == NULL) {
                        rterror("rt_raster_clone: Could not allocate memory for deep clone");
                        return NULL;
                }
                for (i = 0; i < numband; i++)
                        nband[i] = i;

                rtn = rt_raster_from_band(raster, nband, numband);
                rtdealloc(nband);

                return rtn;
        }

        rtn = rt_raster_new(
                rt_raster_get_width(raster),
                rt_raster_get_height(raster)
        );
        if (rtn == NULL) {
                rterror("rt_raster_clone: Could not create cloned raster");
                return NULL;
        }

        rt_raster_get_geotransform_matrix(raster, gt);
        rt_raster_set_geotransform_matrix(rtn, gt);
        rt_raster_set_srid(rtn, rt_raster_get_srid(raster));

        return rtn;
}

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