ArcMapAddinDistanceAndDirection.ViewModels.EllipseViewModel.OnEnterKeyCommand C# (CSharp) Метод

        internal override void OnEnterKeyCommand(object obj)
        {
            if (MajorAxisDistance == 0.0 || Point1 == null || 
                MinorAxisDistance == 0.0 || Azimuth == 0.0)
            {
                return;
            }
            if (Point3 == null)
            {
                Point3 = UpdateFeedback(Point1, MinorAxisDistance);
            }
            base.OnEnterKeyCommand(obj);
        }