point_in_polygon_rtree()

int point_in_polygon_rtree	(	RTREE_NODE **	root,
		int	ringCount,
		LWPOINT *	point
	)

Definition at line 855 of file lwgeom_functions_analytic.c.

{
        int i;
        POINT2D pt;
 
        POSTGIS_DEBUGF(2, "point_in_polygon called for %p %d %p.", root, ringCount, point);
 
        getPoint2d_p(point->point, 0, &pt);
        /* assume bbox short-circuit has already been attempted */
 
        if (point_in_ring_rtree(root[0], &pt) != 1)
        {
                POSTGIS_DEBUG(3, "point_in_polygon_rtree: outside exterior ring.");
 
                return 0;
        }
 
        for (i=1; i<ringCount; i++)
        {
                if (point_in_ring_rtree(root[i], &pt) != -1)
                {
                        POSTGIS_DEBUGF(3, "point_in_polygon_rtree: within hole %d.", i);
 
                        return 0;
                }
        }
        return 1;
}

References getPoint2d_p(), LWPOINT::point, and point_in_ring_rtree().

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