/// <summary>
 /// Creates a <see cref="T:GeoAPI.CoordinateSystems.IVerticalDatum" /> from an enumerated type value.
 /// </summary>
 /// <param name="name">Name of datum</param>
 /// <param name="datumType">Type of datum</param>
 /// <returns>Vertical datum</returns>
 /// <exception cref="NotSupportedException"></exception>
 public IVerticalDatum CreateVerticalDatum(string name, DatumType datumType)
 {
     throw new NotSupportedException();
 }
 /// <summary>
 /// Creates <see cref="T:GeoAPI.CoordinateSystems.IHorizontalDatum" /> from ellipsoid and Bursa-World parameters.
 /// </summary>
 /// <remarks>
 /// Since this method contains a set of Bursa-Wolf parameters, the created
 /// datum will always have a relationship to WGS84. If you wish to create a
 /// horizontal datum that has no relationship with WGS84, then you can
 /// either specify a <see cref="T:GeoAPI.CoordinateSystems.DatumType">horizontalDatumType</see> of <see cref="F:GeoAPI.CoordinateSystems.DatumType.HD_Other" />, or create it via WKT.
 /// </remarks>
 /// <param name="name">Name of ellipsoid</param>
 /// <param name="datumType">Type of datum</param>
 /// <param name="ellipsoid">Ellipsoid</param>
 /// <param name="toWgs84">Wgs84 conversion parameters</param>
 /// <returns>Horizontal datum</returns>
 /// <exception cref="NotSupportedException"></exception>
 public IHorizontalDatum CreateHorizontalDatum(string name, DatumType datumType, IEllipsoid ellipsoid,
                                               Wgs84ConversionInfo toWgs84)
 {
     throw new NotSupportedException();
 }