我有2个纬度格式的坐标。
如何确定从点A(例如纽约37.149472,-95.509544)到点B的方向(例如多伦多40.714269,-74.005973)
我正在寻找“340度”之类的值
在C#中
最佳答案
如果您希望跟随恒定的方位角,那么就不需要最短的(大圆)路径,而需要Rhumb线
为此的可移动类型脚本的转换
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);
关于c# - C#中2个纬度/经度点之间的方向,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/2042599/