import { Point } from "./map.model";
export declare class MapUtils {
    /**
     * 求两点之间的距离
     * @param from 起点
     * @param to 终点
     */
    static getLength(from: Point, to: Point, units?: "miles" | "nauticalmiles" | "degrees" | "radians" | "inches" | "yards" | "meters" | "metres" | "kilometers" | "kilometres"): number;
    /**
     * 增密
     * @param start 始点
     * @param end 终点
     * @param n 增加的点数
     */
    static density(start: Point, end: Point, n: number): (Point | {
        x: number;
        y: number;
    })[];
    /**
     * 求多点之间连线的距离
     * @param points 多点集
     * @param count 抽点次数
     */
    static distance(points: Array<Point>, count?: number | null): number;
}