private void cmbMeridian_SelectedIndexChanged(object sender, EventArgs e)
 {
     Proj4Meridians mer = (Proj4Meridians) Enum.Parse(typeof (Proj4Meridians), (string) cmbMeridian.SelectedItem);
     Meridian m = new Meridian(mer);
     _selectedProjectionInfo.GeographicInfo.Meridian = m;
     dbMeridian.Value = m.Longitude;
 }
 /// <summary>
 /// Creates a new instance of GeographicInfo
 /// </summary>
 public GeographicInfo()
 {
     _datum = new Datum();
     _meridian = new Meridian();
     _unit = new AngularUnit();
 }