gserialized2_get_gbox_p()

int gserialized2_get_gbox_p	(	const GSERIALIZED *	g,
		GBOX *	box
	)

Read the bounding box off a serialization and calculate one if it is not already there.

Read the box from the GSERIALIZED or calculate it if necessary.

Definition at line 583 of file gserialized2.c.

{
        /* Try to just read the serialized box. */
        if (gserialized2_read_gbox_p(g, box) == LW_SUCCESS)
        {
                return LW_SUCCESS;
        }
        /* No box? Try to peek into simpler geometries and */
        /* derive a box without creating an lwgeom */
        else if (gserialized2_peek_gbox_p(g, box) == LW_SUCCESS)
        {
                return LW_SUCCESS;
        }
        /* Damn! Nothing for it but to create an lwgeom... */
        /* See http://trac.osgeo.org/postgis/ticket/1023 */
        else
        {
                LWGEOM *lwgeom = lwgeom_from_gserialized(g);
                int ret = lwgeom_calculate_gbox(lwgeom, box);
                gbox_float_round(box);
                lwgeom_free(lwgeom);
                return ret;
        }
}

References gbox_float_round(), gserialized2_peek_gbox_p(), gserialized2_read_gbox_p(), LW_SUCCESS, lwgeom_calculate_gbox(), lwgeom_free(), and lwgeom_from_gserialized().

Referenced by gserialized_get_gbox_p().

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