void ConfigureInitialVisionTask()
{
// Assert overlay initialized
scanner = new RectangleScanner(overlay);
tracker = new ObjectTracker(overlay);
activeViewer = scanner;
captureDelegate = new VideoCaptureDelegate(OnFrameCaptured);
captureController = new VideoCapture(captureDelegate);
}
/// <summary>
/// Sees if the touch is inside a detected rectangle. If so, switches to "Tracking" mode
/// </summary>
/// <param name="touches">Touches.</param>
/// <param name="evt">Evt.</param>
public override void TouchesBegan(NSSet touches, UIEvent evt)
{
base.TouchesBegan(touches, evt);
var touch = touches.First() as UITouch;
var pt = touch.LocationInView(overlay);
var normalizedPoint = new CGPoint(pt.X / overlay.Frame.Width, pt.Y / overlay.Frame.Height);
if (activeViewer == scanner)
{
var trackedRectangle = scanner.Containing(normalizedPoint);
if (trackedRectangle != null)
{
tracker.Track(trackedRectangle);
overlay.Message = "Target acquired";
activeViewer = tracker;
resetButton.Hidden = false;
}
}
}
void ResetTracking(Object sender, EventArgs e)
{
overlay.Message = "Scanning";
activeViewer = scanner;
resetButton.Hidden = true;
}
