/** 宽高 */
export interface IDimension {
    width: number;
    height: number;
}

/** 位置 */
export interface IPosition {
    left: number;
    top: number;
}

/** 坐标 */
export interface Coord {
    x: number;
    y: number;
}

/** 点坐标 */
export type Point = [number, number];

/** 四边形坐标 */
export type Polygon = [Point, Point, Point, Point];