private void ShowPointer(VirtualPointer pointer)
{
Canvas.SetLeft(this.FingerPointer, pointer.Position.X);
Canvas.SetTop(this.FingerPointer, pointer.Position.Y);
// This is kind of an assumption that you are approximately (2 x physical screen width) far away from your screen
// but at this point we are already working with pixels instead of centimeters
var effectiveHorizontalResolution = SystemParameters.PrimaryScreenWidth / 2;
this.ScaleTransform.ScaleX = this.ScaleTransform.ScaleY = (pointer.Depth / effectiveHorizontalResolution);
}
private void SetupKinectSensor()
{
var kinectBodyTracker = new KinectBodyTracker();
var screenCoordinates = kinectBodyTracker.TrackedJoints
.Select(joints => VirtualPointer.Create(joints, this.geometryHelper))
.Buffer(10, 1)
.Select(buffer => this.SmoothVirtualPointer(buffer));
screenCoordinates
.Do(pointer => this.ShowPointer(pointer))
.Subscribe();
}