/// <summary>
/// Initializes the transform using the parameters from the specified coordinate system information
/// </summary>
/// <param name="projInfo">A ProjectionInfo class contains all the standard and custom parameters needed to initialize this transform</param>
protected override void OnInit(ProjectionInfo projInfo)
{
if (Es != 0)
{
_en = MeridionalDistance.GetEn(Es);
if (_en == null)
{
throw new ProjectionException(0);
}
_ml0 = MeridionalDistance.MeridionalLength(Phi0, Math.Sin(Phi0), Math.Cos(Phi0), _en);
_esp = Es / (1 - Es);
}
else
{
_esp = K0;
_ml0 = .5 * _esp;
}
}
/// <summary>
/// Obtains the EN parameters for the Meridional distance
/// </summary>
/// <param name="es"></param>
/// <returns></returns>
public static double[] Enfn(double es)
{
return(MeridionalDistance.GetEn(es));
}