import { Line } from './line';
import { Point } from './point';
import { Polygon } from './polygon';
export declare class Polyline {
    static fromPoints(points: Point[]): Polyline;
    lines: Line[];
    constructor(polyline: Polyline);
    constructor(lines: Line[]);
    get normals(): number[];
    get path(): Polygon;
    get length(): number;
    chopAt(index: number): this;
}