ArcMapAddinVisibility.ViewModels.LOSBaseViewModel.DeletePoints C# (CSharp) 메소드

        private void DeletePoints(List<AddInPoint> observers)
        {
            if (observers == null || !observers.Any())
                return;

            // remove graphics from map
            var guidList = observers.Select(x => x.GUID).ToList();
            RemoveGraphics(guidList);

            foreach (var point in observers)
            {
                ObserverAddInPoints.Remove(point);
            }
        }