C#中的纬度/经度点之间的方向

我有两个坐标在Lat Long格式.

如何从A点(例如纽约37.149472,-95.509544)确定以B为单位的方向(例如Toronto 40.714269,-74.005973)

我正在寻找一个值,如“340度”

在C#

解决方法

如果你想要一贯的轴承跟随你不想要最短的(大圆)路径,你想要一条Rhumb线

转换可移动类型脚本

static double Degreebearing(
    double lat1,double lon1,double lat2,double lon2)
{   
    var dLon = ToRad(lon2-lon1);
    var dPhi = Math.Log(
        Math.Tan(ToRad(lat2)/2+Math.PI/4)/Math.Tan(ToRad(lat1)/2+Math.PI/4));
    if (Math.Abs(dLon) > Math.PI) 
        dLon = dLon > 0 ? -(2*Math.PI-dLon) : (2*Math.PI+dLon);
    return Tobearing(Math.atan2(dLon,dPhi));
}

public static double ToRad(double degrees)
{
    return degrees * (Math.PI / 180);
}

public static double Todegrees(double radians)
{
    return radians * 180 / Math.PI;
}

public static double Tobearing(double radians) 
{  
    // convert radians to degrees (as bearing: 0...360)
    return (Todegrees(radians) +360) % 360;
}

// verify against the website example
Degreebearing(50.36389,-4.15694,42.35111,-71.04083);