itree_pip_contains()

bool itree_pip_contains	(	const IntervalTree *	itree,
		const LWGEOM *	lwpoints
	)

Definition at line 140 of file lwgeom_itree.c.

{
        if (lwgeom_get_type(lwpoints) == POINTTYPE)
        {
                return itree_point_in_multipolygon(itree, lwgeom_as_lwpoint(lwpoints)) == ITREE_INSIDE;
        }
        else if (lwgeom_get_type(lwpoints) == MULTIPOINTTYPE)
        {
                bool found_completely_inside = false;
                LWMPOINT *mpoint = lwgeom_as_lwmpoint(lwpoints);
                for (uint32_t i = 0; i < mpoint->ngeoms; i++)
                {
                        IntervalTreeResult pip_result;
                        const LWPOINT* pt = mpoint->geoms[i];
 
                        if (lwpoint_is_empty(pt))
                                continue;
                        /*
                         * We need to find at least one point that's completely inside the
                         * polygons (pip_result == 1).  As long as we have one point that's
                         * completely inside, we can have as many as we want on the boundary
                         * itself. (pip_result == 0)
                         */
                        pip_result = itree_point_in_multipolygon(itree, pt);
 
                        if (pip_result == ITREE_INSIDE)
                                found_completely_inside = true;
 
                        if (pip_result == ITREE_OUTSIDE)
                                return false;
                }
                return found_completely_inside;
        }
        else
        {
                elog(ERROR, "%s got a non-point input", __func__);
                return false;
        }
}

References LWMPOINT::geoms, ITREE_INSIDE, ITREE_OUTSIDE, itree_point_in_multipolygon(), lwgeom_as_lwmpoint(), lwgeom_as_lwpoint(), lwgeom_get_type(), lwpoint_is_empty(), MULTIPOINTTYPE, LWMPOINT::ngeoms, and POINTTYPE.

Referenced by contains(), and within().

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