BuildItArSample.UWP.MainPage.UpdateElementsOnScreen C# (CSharp) Method

        private void UpdateElementsOnScreen(double roll, double pitch, double yaw)
        {
            try
            {
                foreach (var element in world.Elements)
                {
                    var poiMarker = poiMarkers[element.Element];
                    if (poiMarker.ActualHeight == 0 || poiMarker.ActualWidth == 0) continue;
                    var offset = world.CalculateOffset(element, (int)poiMarker.ActualWidth, (int)poiMarker.ActualHeight, roll, pitch, yaw);
                    if (offset == null)
                    {
                        continue;
                    }
                    poiMarker.Text = element.Element.DistanceAway;
                    if (offset.TranslateX < -ActualWidth)
                    {
                        offset.TranslateX = -ActualWidth;
                    }
                    if (offset.TranslateX > ActualWidth * 2)
                    {
                        offset.TranslateX = ActualWidth * 2;
                    }
                    offset.TranslateY = ActualHeight / 2;
                    
                    poiMarker.RenderTransform = new CompositeTransform
                    {
                        TranslateX = offset.TranslateX,
                        TranslateY = offset.TranslateY,
                        ScaleY = offset.Scale,
                        ScaleX = offset.Scale
                    };
                }
            }
            catch (Exception ex)
            {
                Debug.WriteLine(ex.Message);
            }
        }