System.Object
   C1.WPF.Gauge.GeometryHelper
   System.Collections.ObjectModel.Collection<T>
      C1.WPF.Gauge.C1GaugeDecoratorCollection
   System.EventArgs
      C1.WPF.Gauge.GaugeLayoutChangedEventArgs
   System.ValueType
      C1.WPF.Gauge.C1GaugeDimension
   System.Windows.Threading.DispatcherObject
      System.Windows.DependencyObject
         C1.WPF.Gauge.C1GaugeDecorator
            C1.WPF.Gauge.C1GaugeLabel
            C1.WPF.Gauge.C1GaugeMark
            C1.WPF.Gauge.C1GaugeRange
         System.Windows.Media.Visual
            System.Windows.UIElement
               System.Windows.FrameworkElement
                  System.Windows.Controls.Control
                     C1.WPF.Gauge.C1Gauge
                        C1.WPF.Gauge.C1LinearGauge
                           C1.WPF.Gauge.C1RulerGauge
                        C1.WPF.Gauge.C1RadialGauge
                           C1.WPF.Gauge.C1Knob
                              C1.WPF.Gauge.C1RegionKnob
                           C1.WPF.Gauge.C1SpeedometerGauge
                           C1.WPF.Gauge.C1VolumeGauge
                     C1.WPF.Gauge.C1GaugePointer
                        C1.WPF.Gauge.C1LinearGaugePointer
                        C1.WPF.Gauge.C1RadialGaugePointer
                           C1.WPF.Gauge.C1KnobPointer
                     C1.WPF.Gauge.C1RadialGaugePointerCap
                        C1.WPF.Gauge.C1KnobPointerCap

Reference

C1.WPF.Gauge.4.5.2 Assembly