import { NonConstructiable } from '../foundation';
import { Rect } from './rect';
import { Size } from './size';
export interface Point {
    readonly x: number;
    readonly y: number;
}
export declare class Point extends NonConstructiable {
    static clone(p: Point): Point;
    static fromXY(x: number, y: number): Point;
    static fromRect(rect: Rect): Point;
    static fromSize(size: Size): Point;
    static readonly zero: Point;
    static isZero(point: Point): boolean;
    static eq(lhs: Point, rhs: Point): boolean;
    static add(lhs: Point, rhs: Point): Point;
    /**
     * 三个 Point 累加
     */
    static add3(p1: Point, p2: Point, p3: Point): Point;
    static invert(p: Point): Point;
}