/// <summary>
/// Handles clicks on the view cube.
/// </summary>
/// <param name="sender">The sender.</param>
/// <param name="e">The <see cref="ViewCubeVisual3D.ClickedEventArgs" /> instance containing the event data.</param>
private void ViewCubeClicked(object sender, ViewCubeVisual3D.ClickedEventArgs e)
{
var pc = this.Camera as ProjectionCamera;
if (pc == null)
{
return;
}
var target = pc.Position + pc.LookDirection;
double distance = pc.LookDirection.Length;
e.LookDirection *= distance;
var newPosition = target - e.LookDirection;
pc.AnimateTo(newPosition, e.LookDirection, e.UpDirection, 500);
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call <see cref="M:System.Windows.FrameworkElement.ApplyTemplate" />.
/// </summary>
/// <exception cref="HelixToolkitException">{0} is missing from the template.</exception>
public override void OnApplyTemplate()
{
base.OnApplyTemplate();
this.RenderHost = this.GetTemplateChild("PART_Canvas") as DPFCanvas;
if (this.RenderHost != null)
{
this.RenderHost.Renderable = this;
}
if (this.adornerLayer == null)
{
this.adornerLayer = this.Template.FindName(PartAdornerLayer, this) as AdornerDecorator;
}
if (this.adornerLayer == null)
{
throw new HelixToolkitException("{0} is missing from the template.", PartAdornerLayer);
}
if (this.coordinateView == null)
{
this.coordinateView = this.Template.FindName(PartCoordinateView, this) as Viewport3D;
this.coordinateSystemLights = new Model3DGroup();
// coordinateSystemLights.Children.Add(new DirectionalLight(Colors.White, new Vector3D(1, 1, 1)));
// coordinateSystemLights.Children.Add(new AmbientLight(Colors.DarkGray));
this.coordinateSystemLights.Children.Add(new System.Windows.Media.Media3D.AmbientLight(Colors.LightGray));
if (this.coordinateView != null)
{
this.coordinateView.Camera = new System.Windows.Media.Media3D.PerspectiveCamera();
this.coordinateView.Children.Add(new ModelVisual3D { Content = this.coordinateSystemLights });
}
}
if (this.coordinateView == null)
{
throw new HelixToolkitException("{0} is missing from the template.", PartCoordinateView);
}
if (this.viewCubeViewport == null)
{
this.viewCubeViewport = this.Template.FindName(PartViewCubeViewport, this) as Viewport3D;
this.viewCubeLights = new Model3DGroup();
this.viewCubeLights.Children.Add(new System.Windows.Media.Media3D.AmbientLight(Colors.White));
if (this.viewCubeViewport != null)
{
this.viewCubeViewport.Camera = new System.Windows.Media.Media3D.PerspectiveCamera();
this.viewCubeViewport.Children.Add(new ModelVisual3D { Content = this.viewCubeLights });
this.viewCubeViewport.MouseEnter += this.ViewCubeViewportMouseEnter;
this.viewCubeViewport.MouseLeave += this.ViewCubeViewportMouseLeave;
}
this.viewCube = this.Template.FindName(PartViewCube, this) as ViewCubeVisual3D;
if (this.viewCube != null)
{
this.viewCube.Clicked += this.ViewCubeClicked;
// this.viewCube.Viewport = this.Viewport;
}
}
// update the coordinateview camera
this.OnCameraChanged();
}
/// <summary>
/// When overridden in a derived class, is invoked whenever application code or internal processes call
/// <see
/// cref="M:System.Windows.FrameworkElement.ApplyTemplate" />
/// .
/// </summary>
public override void OnApplyTemplate()
{
if (this.adornerLayer == null)
{
this.adornerLayer = this.Template.FindName(PartAdornerLayer, this) as AdornerDecorator;
if (this.adornerLayer != null)
{
this.adornerLayer.Child = this.viewport;
}
}
if (this.adornerLayer == null)
{
throw new HelixToolkitException("{0} is missing from the template.", PartAdornerLayer);
}
if (this.cameraController == null)
{
this.cameraController = this.Template.FindName(PartCameraController, this) as CameraController;
if (this.cameraController != null)
{
this.cameraController.Viewport = this.Viewport;
this.cameraController.LookAtChanged += (s, e) => this.OnLookAtChanged();
this.cameraController.ZoomedByRectangle += (s, e) => this.OnZoomedByRectangle();
}
}
if (this.cameraController == null)
{
throw new HelixToolkitException("{0} is missing from the template.", PartCameraController);
}
if (this.coordinateView == null)
{
this.coordinateView = this.Template.FindName(PartCoordinateView, this) as Viewport3D;
this.coordinateSystemLights = new Model3DGroup();
// coordinateSystemLights.Children.Add(new DirectionalLight(Colors.White, new Vector3D(1, 1, 1)));
// coordinateSystemLights.Children.Add(new AmbientLight(Colors.DarkGray));
this.coordinateSystemLights.Children.Add(new AmbientLight(Colors.LightGray));
if (this.coordinateView != null)
{
this.coordinateView.Camera = new PerspectiveCamera();
this.coordinateView.Children.Add(new ModelVisual3D { Content = this.coordinateSystemLights });
}
}
if (this.coordinateView == null)
{
throw new HelixToolkitException("{0} is missing from the template.", PartCoordinateView);
}
if (this.viewCubeViewport == null)
{
this.viewCubeViewport = this.Template.FindName(PartViewCubeViewport, this) as Viewport3D;
this.viewCubeLights = new Model3DGroup();
this.viewCubeLights.Children.Add(new AmbientLight(Colors.White));
if (this.viewCubeViewport != null)
{
this.viewCubeViewport.Camera = new PerspectiveCamera();
this.viewCubeViewport.Children.Add(new ModelVisual3D { Content = this.viewCubeLights });
this.viewCubeViewport.MouseEnter += this.ViewCubeViewportMouseEnter;
this.viewCubeViewport.MouseLeave += this.ViewCubeViewportMouseLeave;
}
this.viewCube = this.Template.FindName(PartViewCube, this) as ViewCubeVisual3D;
if (this.viewCube != null)
{
this.viewCube.Viewport = this.Viewport;
}
}
// update the coordinateview camera
this.OnCameraChanged();
// add the default headlight
this.OnHeadlightChanged();
base.OnApplyTemplate();
}