package com.nuvole.util;
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/**
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* 计算坐标距离工具类
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*
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* @Author: lc
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* @Date: 2019/5/23 19:10
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*/
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public class DistanceUtil {
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private static double EARTH_RADIUS = 6378.137;
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private static double rad(double d) {
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return d * Math.PI / 180.0;
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}
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/**
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* 通过经纬度获取距离(单位：米)（腾讯坐标）
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*
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* @Author: lc
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* @Date: 2019/5/23 19:14
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*/
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public static double getDistance(double lat1, double lng1, double lat2, double lng2) {
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double radLat1 = rad(lat1);
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double radLat2 = rad(lat2);
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double a = radLat1 - radLat2;
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double b = rad(lng1) - rad(lng2);
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double s = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(a / 2), 2)
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+ Math.cos(radLat1) * Math.cos(radLat2)
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* Math.pow(Math.sin(b / 2), 2)));
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s = s * EARTH_RADIUS;
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s = Math.round(s * 10000d) / 10000d;
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s = s * 1000;
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return s;
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}
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public static void main(String[] args) {
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//金明源-杨金路34.844000,113.743560
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double distance = getDistance(34.844222, 113.743300, 34.844000, 113.743560);
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System.out.println("距离" + distance + "米");
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}
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}
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