/**
 * Planar layout algorithm
 */
import type { Graph, PositionMap } from "../../types";
/**
 * Position nodes without edge intersections (planar layout).
 * @param G - Graph
 * @param scale - Scale factor for positions
 * @param center - Coordinate pair around which to center the layout
 * @param dim - Dimension of layout (must be 2)
 * @param seed - Random seed for reproducible layouts
 * @returns Positions dictionary keyed by node
 */
export declare function planarLayout(G: Graph, scale?: number, center?: number[] | null, dim?: number, seed?: number | null): PositionMap;
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