BVHView.xaml

<UserControl x:Class="WpfApplication1.BVHView"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:my="clr-namespace:WpfApplication1" Height="431" Width="377">
    <DockPanel>
        <DockPanel DockPanel.Dock="Top">
            <StackPanel DockPanel.Dock="Right" Orientation="Horizontal">
                <TextBlock Text="{Binding ElementName=slider1, Path=Value}" DockPanel.Dock="Right" VerticalAlignment="Center" />
                <TextBlock Text="/" DockPanel.Dock="Right" VerticalAlignment="Center" />
                <TextBlock Text="{Binding ElementName=slider1, Path=Maximum}" DockPanel.Dock="Right" VerticalAlignment="Center" />
                <ToggleButton Margin="12,6" DockPanel.Dock="Right" Height="20" Width="42" Checked="ToggleButton_Checked" Unchecked="ToggleButton_Unchecked">Run</ToggleButton>
             </StackPanel>
            <Slider Margin="12,6" Name="slider1" IsSnapToTickEnabled="True" ValueChanged="slider1_ValueChanged" />
        </DockPanel>
        <Grid>
            <Grid.RowDefinitions>
                <RowDefinition Height="166*" />
                <RowDefinition Height="217*" />
            </Grid.RowDefinitions>
            <DockPanel Margin="12,6" Background="Black" MouseMove="DockPanel_MouseMove" MouseLeftButtonDown="DockPanel_MouseLeftButtonDown" MouseWheel="DockPanel_MouseWheel" MouseRightButtonDown="DockPanel_MouseRightButtonDown">
                <Viewport3D Name="viewport">
                    <Viewport3D.Camera>
                        <PerspectiveCamera 
                            x:Name="camera"
                            FarPlaneDistance="100"
                            NearPlaneDistance="0"
                            LookDirection="0,0,-1"
                            UpDirection="0,1,0"
                            Position="0,10,40"
                            FieldOfView="45">
                            <PerspectiveCamera.Transform>
                                <Transform3DGroup>
                                    <TranslateTransform3D x:Name="cameraOffset"/>
                                    <RotateTransform3D CenterY="10">
                                        <RotateTransform3D.Rotation>
                                            <AxisAngleRotation3D x:Name="cameraRotationX" Axis="1,0,0" Angle="0"/>
                                        </RotateTransform3D.Rotation>
                                    </RotateTransform3D>
                                    <RotateTransform3D CenterY="10">
                                        <RotateTransform3D.Rotation>
                                            <AxisAngleRotation3D x:Name="cameraRotationY" Axis="0,1,0" Angle="0"/>
                                        </RotateTransform3D.Rotation>
                                    </RotateTransform3D>
                                </Transform3DGroup>
                            </PerspectiveCamera.Transform>
                        </PerspectiveCamera>
                    </Viewport3D.Camera>
                    <ModelVisual3D>
                        <ModelVisual3D.Content>
                            <AmbientLight Color="#ffffff"/>
                        </ModelVisual3D.Content>
                    </ModelVisual3D>
                    <ModelVisual3D x:Name="modelRoot">
                        <ModelVisual3D.Transform>
                            <Transform3DGroup>
                                <ScaleTransform3D x:Name="globalScale"/>
                                <TranslateTransform3D x:Name="globalOffset" />
                            </Transform3DGroup>
                        </ModelVisual3D.Transform>
                    </ModelVisual3D>
                </Viewport3D>
            </DockPanel>
            <TreeView HorizontalAlignment="Stretch" Margin="12,14,12,12" Name="treeView1" Grid.Row="1" FontFamily="MS Gothic" SelectedItemChanged="treeView1_SelectedItemChanged">
                <TreeView.Resources>
                    <HierarchicalDataTemplate DataType="{x:Type my:CompositeElement}" ItemsSource="{Binding Children}">
                        <StackPanel Orientation="Horizontal">
                            <TextBlock Text="{Binding ElementName}" />
                            <TextBlock Text=" "/>
                            <TextBlock Text="{Binding Name}" />
                            <TextBlock Text=" &lt;"/>
                            <TextBlock Text="{Binding Offset}"/>
                            <TextBlock Text="&gt; ["/>
                            <TextBlock Text="{Binding Channels}" />
                            <TextBlock Text="]"/>
                        </StackPanel>
                    </HierarchicalDataTemplate>
                    <HierarchicalDataTemplate DataType="{x:Type my:JointFrameList}" ItemsSource="{Binding Frames}">
                        <TextBlock Text="Frames" />
                    </HierarchicalDataTemplate>
                    <HierarchicalDataTemplate DataType="{x:Type my:FrameElementList}" ItemsSource="{Binding Frames}">
                        <TextBlock Text="Frames" />
                    </HierarchicalDataTemplate>
                </TreeView.Resources>
            </TreeView>
            <GridSplitter Grid.Row="1" HorizontalAlignment="Stretch" Name="gridSplitter1" Height="8" VerticalAlignment="Top" />
        </Grid>
    </DockPanel>
</UserControl>