python根据经纬度计算距离示例

复制代码 代码如下:

/**

• 计算两点之间距离
• @param _lat1 - start纬度
• @param _lon1 - start经度
• @param _lat2 - end纬度
• @param _lon2 - end经度
• @return km(四舍五入)
  /
  public static double getDistance(double _lat1,double _lon1, double _lat2,double _lon2){
  double lat1 = (Math.PI/180)_lat1;
  double lat2 = (Math.PI/180)*_lat2;

double lon1 = (Math.PI/180)_lon1;
double lon2 = (Math.PI/180)_lon2;

//地球半径
double R = 6378.1;

double d = Math.acos(Math.sin(lat1)Math.sin(lat2)+Math.cos(lat1)Math.cos(lat2)Math.cos(lon2-lon1))R;

return new BigDecimal(d).setScale(4,BigDecimal.ROUND_HALF_UP).doubleValue();
}

public static void main(String[] args) {
System.out.println(getDistance(45.73990, 126.55893,45.73876, 126.55037));
}