import { Point } from './Point';
export type Rect = {
    x: number;
    y: number;
    w: number;
    h: number;
};
export declare const emptyRect: Rect;
export declare function getBoundingRect(rects: Array<Rect>): Rect;
export declare function getIntersectingRect(rects: Array<Rect>): Rect | null;
export declare function compareRects(a: Rect, b: Rect): boolean;
export declare function substractRect(a: Rect, b: Rect): Array<Rect>;
export declare function getBarycenter(rect: Rect): Point | null;