import { SPoint } from "./SPoint"; export declare class SLine { p1: SPoint; p2: SPoint; get x1(): number; set x1(value: number); get y1(): number; set y1(value: number); get x2(): number; set x2(v: number); get y2(): number; set y2(value: number); get dx(): number; get dy(): number; constructor(); constructor(line: SLine); constructor(p1: SPoint, p2: SPoint); constructor(x1: number, y1: number, x2: number, y2: number); isNull(): boolean; center(): SPoint; translate(dx: number, dy: number): void; translated(dx: number, dy: number): SLine; }