private void DrawLassoArea(TouchPath touchPath)
{
_polygon = new Polygon();
_polygon.Fill = new SolidColorBrush(Colors.LightGray);
_polygon.Opacity = 0.7;
_polygon.Tag = "SELECTED_AREA";
foreach (var point in touchPath.Points)
{
_polygon.Points.Add(point);
}
_feedbackCanvas.Children.Add(_polygon);
}
public static TouchPath ToTouchPath(this StylusPointCollection self, int deviceId)
{
TouchPath touchPath = new TouchPath();
touchPath.TouchDeviceId = deviceId;
foreach (var item in self)
touchPath.Points.Add(new Point(item.X, item.Y));
return touchPath;
}
