import type { PointLike as Point } from '@antv/g-lite';
/**
 * TODO: use clock from g later.
 */
export declare const clock: Performance | DateConstructor;
export declare const calcDirection: (start: Point, end: Point) => "right" | "left" | "down" | "up";
export declare const calcDistance: (point1: Point, point2: Point) => number;
export declare const getCenter: (point1: Point, point2: Point) => {
    x: number;
    y: number;
};
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