/**
 * Multipolygon relation building utilities.
 *
 * Implements the OSM multipolygon relation specification to construct
 * polygon geometries from way members. Handles outer/inner roles,
 * way connection, and ring closure.
 *
 * @see https://wiki.openstreetmap.org/wiki/Relation:multipolygon
 *
 * @module
 */
import type { LonLat, OsmRelation, OsmRelationMember, OsmWay } from "./types.ts";
/**
 * Get way members from a relation, grouped by role (outer/inner).
 */
export declare function getWayMembersByRole(relation: OsmRelation): {
    outer: OsmRelationMember[];
    inner: OsmRelationMember[];
};
/**
 * Connect ways that share endpoints to form a continuous ring.
 * Returns an array of rings (each ring is an array of way IDs in order).
 *
 * This function handles:
 * - Ways that are reversed (end matches end, or start matches start).
 * - Closed ways (single ways that form a ring).
 * - Disconnected chains (multiple independent rings).
 */
export declare function connectWaysToRings(wayMembers: OsmWay[]): OsmWay[][];
/**
 * Build polygon rings from way members of a relation.
 * Returns an array where each element is an array of coordinate rings (outer + inner).
 *
 * Based on OSM multipolygon relation specification:
 * https://wiki.openstreetmap.org/wiki/Relation:multipolygon
 *
 * This implementation connects way members into closed rings, and then groups them
 * into polygons. Currently, it associates all inner rings with every outer ring
 * found in the relation, which is a simplification. A robust implementation would
 * use point-in-polygon checks to strictly nest holes inside their parent outer ring.
 */
export declare function buildRelationRings(relation: OsmRelation, getWay: (wayId: number) => OsmWay | null, getNodeCoordinates: (nodeId: number) => LonLat | undefined): LonLat[][][];
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