private void DrawVelocityMap(UnmanagedImage output)
{
Point sumVelocity = new Point();
int indention = 7;
int step = 10;
Invoke(() => step = VelocitiesDistanceTrackBar.Value);
//Point[,] velocityField = ((dynamic)_tracker).CalculateVelocityField(_currentPreprocessedImage, _previousPreprocessedImage);
for (int x = indention; x < _frameSize.Width - indention; x += step)
{
for (int y = indention; y < _frameSize.Height - indention; y += step)
{
IntPoint p = new IntPoint(x, y);
Point velocity = _tracker.CalculateVelocity(_currentPreprocessedImage, _previousPreprocessedImage, p);
//Point velocity = velocityField[y, x];
sumVelocity += velocity;
if (velocity.EuclideanNorm() != 0.0f)
{
IntPoint newp = (p + velocity).Round();
Drawing.Line(output, p, newp, Color.White);
output.SetPixel(newp, Color.Red);
}
}
}
Invoke(() => InfoLabel.Text = string.Format("Summary motion: ({0:+00.00;-00.00}; {1:+00.00;-00.00})", sumVelocity.X / 10, sumVelocity.Y / 10));
}
private void UpdateCursor()
{
if (ControlCursorCheckBox.Checked && _featureRegion != null && !_featureRegion.IsLost)
{
if (AbsolutePositioningCheckBox.Checked)
{
IntPoint delta = new IntPoint(
-_featureRegion.Location.X + _featureCenterPostion.X,
+_featureRegion.Location.Y - _featureCenterPostion.Y);
float speedFactor = 2.6f;
IntPoint screenCursorDelta = new IntPoint(
(int)(speedFactor * delta.X * _screenResolution.Width / _frameSize.Width),
(int)(speedFactor * delta.Y * _screenResolution.Height / _frameSize.Height));
IntPoint centerScreen = new IntPoint(_screenResolution.Width / 2, _screenResolution.Height / 2);
IntPoint newPosition = new IntPoint(
(int)Math.Max(0, Math.Min(_screenResolution.Width - 1, centerScreen.X + screenCursorDelta.X)),
(int)Math.Max(0, Math.Min(_screenResolution.Height - 1, centerScreen.Y + screenCursorDelta.Y)));
Cursor.Position = newPosition.ToGDIPoint();
}
else
{
// inversing X axis
Point delta = new Point(
-_featureRegion.Location.X + _previousFeaturePointLocation.X,
_featureRegion.Location.Y - _previousFeaturePointLocation.Y);
_lastDeltas.Add(delta);
if (_lastDeltas.Count > _valuablePointsNumber)
{
_lastDeltas.RemoveAt(0);
}
Point sumDelta = _lastDeltas.Aggregate <Point, Point>(new Point(), (sum, p) => sum + p);
Point avgDelta = sumDelta / _lastDeltas.Count;
IntPoint screenCursorDelta = (avgDelta * 10.0f * (float)Math.Pow(avgDelta.EuclideanNorm(), 0.8)).Round();
IntPoint newPosition = Cursor.Position.ToAForgePoint() + screenCursorDelta;
Cursor.Position = newPosition.ToGDIPoint();
if (_lastDeltas.Count == _valuablePointsNumber)
{
if (avgDelta.EuclideanNorm() > _idleThreshold)
{
_idleStart = DateTime.Now;
}
if ((DateTime.Now - _idleStart).TotalSeconds > _idleSecondToClick)
{
mouse_event(MOUSEEVENTF_LEFTDOWN | MOUSEEVENTF_LEFTUP, (uint)Cursor.Position.X, (uint)Cursor.Position.Y, 0, 0);
_idleStart = DateTime.Now;
}
}
}
}
_previousFeaturePointLocation = _featureRegion.Location;
}
public void EuclideanNormTest( float x, float y, float expectedNorm )
{
Point point = new Point( x, y );
Assert.AreEqual( point.EuclideanNorm( ), expectedNorm );
}