import { Element } from '@antv/g2';
import { ShapeInfo } from '@antv/g2/lib/interface';
export declare const getLinkPath: (prev: Element, next: Element) => (string | number)[][];
/**
 * 获取两个柱状elements上端连线的中间点
 *
 * @param prev 左边柱状element
 * @param next 右边柱状element
 * @returns {x, y}
 */
export declare const getMiddleCoordinate: (prev: Element, next: Element) => {
    x: number;
    y: number;
};
/**
 * 基于中心点，绘制一个矩形
 * @param prev 左边柱状element
 * @param next 右边柱状element
 * @returns {x, y, width, height}
 */
export declare const getMiddleRect: (point: {
    x: number;
    y: number;
}, width: number, height: number) => {
    x: number;
    y: number;
    width: number;
    height: number;
};
/**
 * 基于中心点，绘制一个箭头多边形
 * @param point the center point for arrow polygon
 * @param width the width of the whole polygon
 * @param height the height of the whole polygon
 * @returns
 */
export declare const getArrowPolygon: (point: {
    x: number;
    y: number;
}, width: number, height: number) => [number, number][];
export declare const getColorByModel: (model: ShapeInfo) => any;
export declare const getColorByGroupModel: (model: ShapeInfo) => any;