根据两点间经纬度坐标(double值),计算两点间距离,单位为米
- 摘要://地球平均半径privatestaticfinaldoubleEARTH_RADIUS=6378137;//把经纬度转为度(°)privatestaticdoublerad(doubled){returnd*Math.PI/180.0;}/***网羽中心39.9600510000,116.5104500000*电子城39.9809880000,116.4972310000*根据两点间经纬度坐标(double值),计算两点间距离,单位为米*@paramlng1116
- 标签:为 经纬
//地球平均半径
private static final double EARTH_RADIUS = 6378137;
//把经纬度转为度(°)
private static double rad(double d){
return d * Math.PI / 180.0;
}
/**
* 网羽中心 39.9600510000,116.5104500000
* 电子城 39.9809880000,116.4972310000
* 根据两点间经纬度坐标(double值),计算两点间距离,单位为米
* @param lng1 116.4972310000
* @param lat1 39.9809880000
* @param lng2 116.5104500000
* @param lat2 39.9600510000
* @return
*/
public static double getDistance(double lng1, double lat1, double lng2, double lat2){
double radLat1 = rad(lat1);
double radLat2 = rad(lat2);
double a = radLat1 - radLat2;
double b = rad(lng1) - rad(lng2);
double s = 2 * Math.asin(
Math.sqrt(
Math.pow(Math.sin(a/2),2)
+ Math.cos(radLat1)*Math.cos(radLat2)*Math.pow(Math.sin(b/2),2)
)
);
s = s * EARTH_RADIUS;
s = Math.round(s * 10000) / 10000;
return s;
}
// public static void main(String[] args) {
// System.out.println(getDistance(116.4972310000, 39.9809880000, 116.5104500000, 39.9600510000));
// }