Calculates a bearing (in degrees) between two geodetic coordinates on the surface of a reference ellipsoid.

Parameters

ge

a predefined reference ellipsoid (GeoEllipsoid)

latInDeg1

the latitude (in decimal degrees) of the first geodetic coordinate

lonInDeg1

the longitude (in decimal degrees) of the first geodetic coordinate

latInDeg2

the latitude (in decimal degrees) of the second geodetic coordinate

lonInDeg2

the longitude (in decimal degrees) of the second geodetic coordinate

bearingInDeg

the calculated bearing (in degrees), passed by reference (out)

errorMessage

an error message, passed by reference (out), that contains detailed error / warning information

Return Value

true - the function has succeeded, false - it has failed

Remarks

The function verifies validity of its arguments.

Example

This sample shows how to call the Geodetic.CalculateBearingInDeg method from C# code:

 GeoEllipsoid ge = GeoEllipsoid.WE;

 string errorMessage = String.Empty;
 
 double latInDeg = 38.889139;
 double lonInDeg = -77.049;
 double latInDeg2 = 39.889139;
 double lonInDeg2 = -78.049;
 
 double bearingInDeg = Double.NaN;
 
 if (Geodetic.CalculateBearingInDeg(ge, latInDeg1, lonInDeg1, latInDeg2, lonInDeg2, out bearingInDeg, out errorMessage))
 {
     Console.WriteLine("Bearing, in degrees: " + bearingInDeg.ToString());
 }
 else
 {
     Console.WriteLine(errorMessage);
 }
 

See Also

Geodetic Class | ApsGis Namespace | Geodetic.CalculateBearingInDeg Overload List