ArcMapAddinDistanceAndDirection.ViewModels.CircleViewModel.OnNewMapPointEvent C# (CSharp) Метод

        internal override void OnNewMapPointEvent(object obj)
        {
            var point = obj as IPoint;
            if (point == null)
                return;

            if (IsDistanceCalcExpanded)
            {
                HasPoint1 = false;
            }

            base.OnNewMapPointEvent(obj);

            if (IsDistanceCalcExpanded)
            {
                UpdateDistance(TravelRateInSeconds * TravelTimeInSeconds, RateUnit);
            }
        }