import { Point, IPhysicalObject, PhysicalObject } from '.';
export declare class Segment extends PhysicalObject implements IPhysicalObject {
    vecx: number;
    vecy: number;
    constructor(x: number, y: number, vecx: number, vecy: number);
    length(): number;
    normal(): Segment;
    center(): Point;
    unit(): Segment;
    multiply(multiplier: number): void;
    project(segmentOnto: Segment): Point;
    slope(): number;
    pointInside(point: Point): boolean;
    intersect(shape: IPhysicalObject): boolean;
    intersectSegment(segment: Segment): Point;
}