protected void trackball_TrackBallMoved(Object sender, EventArgs e)
{
System.Windows.Media.Media3D.Quaternion delta = ((Trackball)sender).Delta;
Vector3 deltaAxis = new Vector3();
deltaAxis.X = (float)delta.Axis.X;
deltaAxis.Y = (float)delta.Axis.Y;
deltaAxis.Z = (float)delta.Axis.Z;
deltaAxis.Normalize();
Vector3 cameraLookDirection = viewport3DImage.CameraTarget - viewport3DImage.CameraPosition;
Vector3 cameraUpDirection = viewport3DImage.CameraUpVector;
cameraLookDirection.Normalize();
// Subtract any component of cameraUpDirection along cameraLookDirection
cameraUpDirection = cameraUpDirection - Vector3.Multiply(cameraLookDirection, Vector3.Dot(cameraUpDirection, cameraLookDirection));
cameraUpDirection.Normalize();
Vector3 cameraX = Vector3.Cross(cameraLookDirection, cameraUpDirection);
// Get axis of rotation in the camera coordinates
Vector3 deltaAxisWorld = Vector3.Multiply(cameraX, deltaAxis.X) +
Vector3.Multiply(cameraUpDirection, deltaAxis.Y) +
Vector3.Multiply(cameraLookDirection, -deltaAxis.Z);
SharpDX.Matrix cameraTransform = SharpDX.Matrix.RotationAxis(deltaAxisWorld, (float)(delta.Angle * Math.PI / 180.0));
viewport3DImage.CameraTarget = Vector3.Transform(viewport3DImage.CameraTarget, cameraTransform).ToVector3();
viewport3DImage.CameraPosition = Vector3.Transform(viewport3DImage.CameraPosition, cameraTransform).ToVector3();
viewport3DImage.CameraUpVector = Vector3.Transform(viewport3DImage.CameraUpVector, cameraTransform).ToVector3();
double newPhi = FindPhi();
if (newPhi != lastPhi)
{
lastPhi = newPhi;
axes.UpdateOpenSides(newPhi);
}
}
public void Initialize()
{
Background = null;
viewport3DControl = new Viewport3DControl();
viewport3DControl.SetValue(Grid.ZIndexProperty, 100);
this.Children.Add(viewport3DControl);
viewport3DImage = viewport3DControl.Viewport3DImage;
if (viewport3DImage == null)
{
axes = new Axes3D();
SetValue(ModelsProperty, new Model3DCollection(null));
return;
}
viewport3DImage.ViewPort3D = this;
SetValue(ModelsProperty, viewport3DImage.Models);
// Set the owner of the Model3DCollection to be the D3DImageViewport
// This ensures that the Model3D objects are rendered by the D3DImageViewport
viewport3DImage.SetLayer2D(viewport3DImage.Canvas, GraphToWorld);
viewport3DImage.Models.Changed += new Model3DCollection.ItemEventHandler(Models_Changed);
trackball = new Trackball();
trackball.EventSource = viewport3DControl; //viewport3DImage.Canvas;
trackball.OnTrackBallMoved += new TrackballEventHandler(trackball_TrackBallMoved);
trackball.OnTrackBallZoom += new TrackballEventHandler(trackball_OnTrackBallZoom);
trackball.OnTrackBallTranslate += new TrackballEventHandler(trackball_OnTrackBallTranslate);
axes = new Axes3D();
viewport3DImage.Models.Add(axes);
viewport3DImage.CameraPosition = new Vector3(-3f, -3f, 2f);
viewport3DImage.CameraTarget = new Vector3(0f, 0f, 0f);
//
Binding bindingGraphMin = new Binding("GraphMin");
bindingGraphMin.Source = this;
bindingGraphMin.Mode = BindingMode.TwoWay;
BindingOperations.SetBinding(axes, Axes3D.GraphMinProperty, bindingGraphMin);
Binding bindingGraphMax = new Binding("GraphMax");
bindingGraphMax.Source = this;
bindingGraphMax.Mode = BindingMode.TwoWay;
BindingOperations.SetBinding(axes, Axes3D.GraphMaxProperty, bindingGraphMax);
Binding bindingGraphToWorld = new Binding("GraphToWorld");
bindingGraphToWorld.Source = this;
bindingGraphToWorld.Mode = BindingMode.OneWay;
BindingOperations.SetBinding(viewport3DImage, ViewportImage.ModelToWorldProperty, bindingGraphToWorld);
////
GraphMax = new Point3D(1, 1, 1);
GraphMin = new Point3D(-1, -1, -1);
WorldMin = new Point3D(-1, -1, -1);
WorldMax = new Point3D(1, 1, 1);
axes.UpdateOpenSides(FindPhi());
this.IsVisibleChanged += new DependencyPropertyChangedEventHandler(Viewport3D_IsVisibleChanged);
}
public void Initialize()
{
Background = null;
viewport3DControl = new Viewport3DControl();
viewport3DControl.SetValue(Grid.ZIndexProperty, 100);
this.Children.Add(viewport3DControl);
viewport3DImage = viewport3DControl.Viewport3DImage;
if (viewport3DImage == null)
{
axes = new Axes3D();
SetValue(ModelsProperty, new Model3DCollection(null));
return;
}
viewport3DImage.ViewPort3D = this;
SetValue(ModelsProperty, viewport3DImage.Models);
// Set the owner of the Model3DCollection to be the D3DImageViewport
// This ensures that the Model3D objects are rendered by the D3DImageViewport
viewport3DImage.SetLayer2D(viewport3DImage.Canvas, GraphToWorld);
viewport3DImage.Models.Changed += new Model3DCollection.ItemEventHandler(Models_Changed);
trackball = new Trackball();
trackball.EventSource = viewport3DControl; //viewport3DImage.Canvas;
trackball.OnTrackBallMoved += new TrackballEventHandler(trackball_TrackBallMoved);
trackball.OnTrackBallZoom += new TrackballEventHandler(trackball_OnTrackBallZoom);
trackball.OnTrackBallTranslate += new TrackballEventHandler(trackball_OnTrackBallTranslate);
axes = new Axes3D();
viewport3DImage.Models.Add(axes);
viewport3DImage.CameraPosition = new Vector3(-3f, -3f, 2f);
viewport3DImage.CameraTarget = new Vector3(0f, 0f, 0f);
//
Binding bindingGraphMin = new Binding("GraphMin");
bindingGraphMin.Source = this;
bindingGraphMin.Mode = BindingMode.TwoWay;
BindingOperations.SetBinding(axes, Axes3D.GraphMinProperty, bindingGraphMin);
Binding bindingGraphMax = new Binding("GraphMax");
bindingGraphMax.Source = this;
bindingGraphMax.Mode = BindingMode.TwoWay;
BindingOperations.SetBinding(axes, Axes3D.GraphMaxProperty, bindingGraphMax);
Binding bindingGraphToWorld = new Binding("GraphToWorld");
bindingGraphToWorld.Source = this;
bindingGraphToWorld.Mode = BindingMode.OneWay;
BindingOperations.SetBinding(viewport3DImage, ViewportImage.ModelToWorldProperty, bindingGraphToWorld);
////
GraphMax = new Point3D(1, 1, 1);
GraphMin = new Point3D(-1, -1, -1);
WorldMin = new Point3D(-1, -1, -1);
WorldMax = new Point3D(1, 1, 1);
axes.UpdateOpenSides(FindPhi());
this.IsVisibleChanged += new DependencyPropertyChangedEventHandler(Viewport3D_IsVisibleChanged);
}
