public static GeoAngle FromDouble(double angleInDegrees)
{
//ensure the value will fall within the primary range [-180.0..+180.0]
while (angleInDegrees < -180.0)
{
angleInDegrees += 360.0;
}
while (angleInDegrees > 180.0)
{
angleInDegrees -= 360.0;
}
var result = new GeoAngle();
//switch the value to positive
result.IsNegative = angleInDegrees < 0;
angleInDegrees = Math.Abs(angleInDegrees);
//gets the degree
result.Degrees = (int)Math.Floor(angleInDegrees);
var delta = angleInDegrees - result.Degrees;
//gets minutes and seconds
var seconds = (int)Math.Floor(3600.0 * delta);
result.Seconds = seconds % 60;
result.Minutes = (int)Math.Floor(seconds / 60.0);
delta = delta * 3600.0 - seconds;
//gets fractions
result.Milliseconds = (int)(1000.0 * delta);
return(result);
}
public static string getLongitude(PointLatLng p)
{
GeoAngle ga = GeoAngle.FromDouble(p.Lng);
return(string.Format(
"{0}° {1:00}' {2:00}\".{3:000} {4}",
ga.Degrees,
ga.Minutes,
ga.Seconds,
ga.Milliseconds,
ga.IsNegative ? 'W' : 'E'));
}
public static double ToDouble(GeoAngle angleInDegrees)
{
return(angleInDegrees.Degrees + (angleInDegrees.Minutes / 60) + (angleInDegrees.Seconds / 3600));
}