public void Smooth(IHandSkeleton skeleton)
{
var palmPosition = skeleton.PalmPosition;
var previousAverage = CurrentAverage;
if ((palmPosition - previousAverage).TwoNorm() > _jumpThreshold)
{
// filter jump - flush the queue and start over averaging
_window.Clear();
_window.Enqueue(palmPosition);
return;
}
_window.Enqueue(palmPosition);
if (_window.Count > _windowSize)
{
_window.Dequeue();
}
var currentAverage = CurrentAverage;
SmoothedPositionChanged?.Invoke(this, new SmoothedPositionChangeEventArgs()
{
SmoothedPosition = currentAverage,
SmoothedPositionDelta = currentAverage - previousAverage
});
}
public void UpdatePosition(IHandSkeleton handSkeleton)
{
Dispatcher.Invoke(() =>
{
var fingerPosition = handSkeleton.FingerPositions[this.Finger];
var deltaXSource = MaxX - MinX;
var deltaXDest = (float)Canvas.ActualWidth;
var xDest = (fingerPosition.X - MinX) * deltaXDest / deltaXSource;
var deltaYSource = MaxY - MinY;
var deltaYDest = (float)Canvas.ActualHeight;
var yDest = (fingerPosition.Y - MinY) * deltaYDest / deltaYSource;
Canvas.SetRight(UIElement, xDest);
Canvas.SetTop(UIElement, yDest);
});
}
