相关疑难解决方法(0)

我正在尝试将此http://www.movable-type.co.uk/scripts/latlong.html中提供的代码段转换为java.但是我没有得到与网站相同的结果.这是我的代码,用于找到两个点之间的中点,其中给出了它们的纬度和经度

midPoint(12.870672,77.658964,12.974831,77.60935);
    public static void midPoint(double lat1,double lon1,double lat2,double lon2)
    {
   double dLon = Math.toRadians(lon2-lon1);
        double Bx = Math.cos(lat2) * Math.cos(dLon);
        double By = Math.cos(lat2) * Math.sin(dLon);
        double lat3 = Math.atan2(Math.sin(lat1)+Math.sin(lat2),Math.sqrt( (Math.cos(lat1)+Bx)*(Math.cos(lat1)+Bx) + By*By) );
        double lon3 = lon1 + Math.atan2(By, Math.cos(lat1) + Bx);
        System.out.print(lat3 +" " + lon3 );
    }

我不确定dLon是否正确.所以请帮助我们弄明白.PSI需要找到中点的纬度和经度