private void SetRandomImage(CalibrationPoint point)
{
if (errorLoadingImages)
{
return;
}
try
{
var imageList = new ArrayList();
var di = new DirectoryInfo(Directory.GetCurrentDirectory() + "\\InfantGraphics\\");
foreach (FileInfo file in di.GetFiles())
{
imageList.Add(file.FullName);
}
var random = new Random();
int num = random.Next(imageList.Count - 1);
var img = new BitmapImage(new Uri(imageList[num].ToString()));
point.PointImage(img);
}
catch (Exception)
{
errorLoadingImages = true;
MessageBox.Show("Could not locate the \"InfantGraphics\" folder, please ensure that it exists in the application directory.");
}
}
private void EyeTrackerPointStop(CalibrationPoint calPoint)
{
currentPoint = calPoint;
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(PointStopEvent, calPoint);
RaiseEvent(args1);
}
private void EyeTrackerPointStart(CalibrationPoint calPoint)
{
currentPoint = calPoint;
//GTCommands.Instance.CalibrationPointStart(InstancePoint.Number, InstancePoint.Point);
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(PointStartEvent, calPoint);
RaiseEvent(args1);
}
public void Reset()
{
calibrationCompleted = false;
CanvasCalibration.Children.Clear();
currentPoint = null;
nextPoint = null;
indexInstancePoint = -1;
calibrationPoints = new List <CalibrationPoint>();
_avgSumStdDev = 0;
}
private void AnimateBetweenPoints_Completed(object sender, EventArgs e)
{
// Hide last point, make a switch to the next point
currentPoint.Visibility = Visibility.Collapsed;
currentPoint = nextPoint;
currentPoint.Visibility = Visibility.Visible;
// Get next point and continue..
DisplayPoints();
}
private static CalibrationPoint CopyPoint(CalibrationPoint point)
{
var newPoint = new CalibrationPoint
{
Number = point.Number,
Point = point.Point,
PointColor = point.PointColor,
Diameter = point.Diameter,
PointDuration = point.PointDuration
};
return(newPoint);
}
public void ShowAllPoints()
{
// Loop through Calpoints in the UserControl (eg. this)
foreach (CalibrationPoint t in calibrationPoints)
{
CalibrationPoint calPoint = CopyPoint(t);
calPoint.Visibility = Visibility.Visible;
CanvasCalibration.Children.Add(calPoint);
Canvas.SetTop(calPoint, calPoint.Point.Y - calPoint.Diameter / 2);
Canvas.SetLeft(calPoint, calPoint.Point.X - calPoint.Diameter / 2);
Panel.SetZIndex(calPoint, 1);
}
}
private void StartWithFirstFakePoint(Point start, Point end)
{
fakePoint = new CalibrationPoint(
-1,
TrackingScreen.TrackingScreenCenter,
pointDiameter,
ColorPoints,
1000);
// Add point to display canvas
CanvasCalibration.Children.Add(fakePoint);
Canvas.SetTop(fakePoint, fakePoint.Point.Y - pointDiameter / 2);
Canvas.SetLeft(fakePoint, fakePoint.Point.X - pointDiameter / 2);
fakePoint.RunScalePointAnimation();
fakePoint.OnPointDisplayed += fakePoint_PointDisplayedAction;
}
public void Start()
{
Reset();
GeneratePositions(this.Width, this.Height);
if (RandomOrder)
{
RandomizeCalibrationPoints();
}
if (currentPoint == null)
{
currentPoint = GetNextPoint();
}
Cursor = Cursors.None; // Redisplay after calibration
StartWithFirstFakePoint(new Point(0, 0), currentPoint.Point);
}
private void AnimateBetweenPoints(object sender, RoutedEventArgs e)
{
// Get next point (to animate between)
nextPoint = GetNextPoint();
if (nextPoint == null)
{
// All points displayed, raise event
calibrationCompleted = true;
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(CalibrationEndEvent, this);
RaiseEvent(args1);
}
else
{
// Animate from previous to new point
var calPointX = new DoubleAnimation();
calPointX.From = currentPoint.Point.X - pointDiameter / 2;
calPointX.To = nextPoint.Point.X - pointDiameter / 2;
calPointX.Duration = TimeSpan.FromMilliseconds(PointTransitionDuration);
calPointX.AccelerationRatio = _acceleration;
calPointX.DecelerationRatio = _deacceleration;
var calPointY = new DoubleAnimation();
calPointY.From = currentPoint.Point.Y - pointDiameter / 2;
calPointY.To = nextPoint.Point.Y - pointDiameter / 2;
calPointY.Duration = TimeSpan.FromMilliseconds(PointTransitionDuration);
calPointY.AccelerationRatio = _acceleration;
calPointY.DecelerationRatio = _deacceleration;
calPointX.Completed += AnimateBetweenPoints_Completed;
// Start animations
currentPoint.BeginAnimation(Canvas.LeftProperty, calPointX);
currentPoint.BeginAnimation(Canvas.TopProperty, calPointY);
currentPoint.RunScalePointAnimationReverse(); // At the same time, zoom out again..
}
}
private void CanvasCalibration_OnUIElementMoved(object sender, RoutedEventArgs e)
{
var replacePoint = e.OriginalSource as CalibrationPoint;
var oldPoint = new CalibrationPoint(99, new Point(), 0, new SolidColorBrush(), 1);
int index = 0;
int foundIndex = 0;
foreach (CalibrationPoint c in calibrationPoints)
{
if (replacePoint != null)
{
if (c.Number == replacePoint.Number)
{
foundIndex = index;
}
}
index++;
}
calibrationPoints[foundIndex] = replacePoint;
RecalibratePoint(calibrationPoints[foundIndex], new RoutedEventArgs());
}
public void Reset()
{
calibrationCompleted = false;
CanvasCalibration.Children.Clear();
currentPoint = null;
nextPoint = null;
indexInstancePoint = -1;
calibrationPoints = new List<CalibrationPoint>();
_avgSumStdDev = 0;
}
public void GeneratePositions(double areaWidth, double areaHeight)
{
int pointNumber = 1;
int columnCount = 4; // default 12 points (indx starting at 1-4, eg. 4x3)
int rowCount = 3; // default 12 points (indx starting at 1-3, eg. 4x3)
switch (numberOfPoints)
{
case 9:
columnCount = 3;
rowCount = 3;
break;
case 12:
columnCount = 4;
rowCount = 3;
break;
case 16:
columnCount = 4;
rowCount = 4;
break;
default:
columnCount = 3;
rowCount = 3;
break;
}
double rowSpacer = (areaHeight - pointDiameter) / (rowCount - 1);
double columnSpacer = (areaWidth - pointDiameter) / (columnCount - 1);
//if (UseInfantGraphics)
// calibrationPointDiameter = calibrationPointDiameter * 2;
//rowSpacer = rowSpacer - pointDiameter / 2;
//columnSpacer = columnSpacer - pointDiameter / 2;
// Adjust for 0-based array loop
rowCount -= 1;
columnCount -= 1;
for (int row = 0; row <= rowCount; row++)
{
for (int column = 0; column <= columnCount; column++)
{
var pos = new Point(column * columnSpacer, row * rowSpacer);
pos.Y = pos.Y + pointDiameter / 2;
// Compensate for top/left positioning, eg. 0,0 is top/left when it should be 25,25 (center of point)
pos.X = pos.X + pointDiameter / 2;
var calPoint = new CalibrationPoint(
pointNumber,
pos,
pointDiameter,
_colorPoints,
PointDuration);
if (UseInfantGraphics)
SetRandomImage(calPoint);
calibrationPoints.Add(calPoint);
pointNumber++;
}
}
}
private void AnimateBetweenPoints(object sender, RoutedEventArgs e)
{
// Get next point (to animate between)
nextPoint = GetNextPoint();
if (nextPoint == null)
{
// All points displayed, raise event
calibrationCompleted = true;
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(CalibrationEndEvent, this);
RaiseEvent(args1);
}
else
{
// Animate from previous to new point
var calPointX = new DoubleAnimation();
calPointX.From = currentPoint.Point.X - pointDiameter / 2;
calPointX.To = nextPoint.Point.X - pointDiameter / 2;
calPointX.Duration = TimeSpan.FromMilliseconds(PointTransitionDuration);
calPointX.AccelerationRatio = _acceleration;
calPointX.DecelerationRatio = _deacceleration;
var calPointY = new DoubleAnimation();
calPointY.From = currentPoint.Point.Y - pointDiameter / 2;
calPointY.To = nextPoint.Point.Y - pointDiameter / 2;
calPointY.Duration = TimeSpan.FromMilliseconds(PointTransitionDuration);
calPointY.AccelerationRatio = _acceleration;
calPointY.DecelerationRatio = _deacceleration;
calPointX.Completed += AnimateBetweenPoints_Completed;
// Start animations
currentPoint.BeginAnimation(Canvas.LeftProperty, calPointX);
currentPoint.BeginAnimation(Canvas.TopProperty, calPointY);
currentPoint.RunScalePointAnimationReverse(); // At the same time, zoom out again..
}
}
private void StartWithFirstFakePoint(Point start, Point end)
{
fakePoint = new CalibrationPoint(
-1,
TrackingScreen.TrackingScreenCenter,
pointDiameter,
ColorPoints,
1000);
// Add point to display canvas
CanvasCalibration.Children.Add(fakePoint);
Canvas.SetTop(fakePoint, fakePoint.Point.Y - pointDiameter / 2);
Canvas.SetLeft(fakePoint, fakePoint.Point.X - pointDiameter / 2);
fakePoint.RunScalePointAnimation();
fakePoint.OnPointDisplayed += fakePoint_PointDisplayedAction;
}
public BitmapSource VisualizeCalibrationResults(List <CalibrationTarget> calibTargets)
{
CanvasCalibration.Children.Clear();
// Draw also to Drawing Visual
DrawingVisual drawingVisual = new DrawingVisual();
DrawingContext drawingContext = drawingVisual.RenderOpen();
// Fill with background color
drawingContext.DrawRectangle(
this.CanvasCalibration.Background,
null,
new Rect(0, 0, this.ActualWidth, this.ActualHeight));
// Redisplay cursor
Cursor = Cursors.Arrow;
double sumStdDeviation = 0;
double sumDistFromTargetsX = 0;
double sumDistFromTargetsY = 0;
// Loop through Calpoints in the UserControl
foreach (CalibrationPoint t in calibrationPoints)
{
CalibrationPoint calPoint = CopyPoint(t);
#region Draw tracker data for calPoint
foreach (CalibrationTarget trackerPoint in calibTargets)
{
// If target number is the same, create visuals for calibration point
if (trackerPoint.targetNumber.Equals(calPoint.Number))
{
#region Draw raw estimated gaze positions
foreach (GTPoint gpLeft in trackerPoint.estimatedGazeCoordinatesLeft)
{
// compensate for relative to full screen coordinates
Point p = AdjustPointToPartial(new Point(gpLeft.X, gpLeft.Y));
Ellipse g = new Ellipse {
Width = 3, Height = 3, Fill = new SolidColorBrush(Colors.Red)
};
CanvasCalibration.Children.Add(g);
Canvas.SetTop(g, p.Y);
Canvas.SetLeft(g, p.X);
// Draw also to Drawing Visual
drawingContext.DrawEllipse(Brushes.Red, null, p, 3, 3);
}
foreach (GTPoint gpRight in trackerPoint.estimatedGazeCoordinatesRight)
{
Point p = AdjustPointToPartial(new Point(gpRight.X, gpRight.Y));
Ellipse g = new Ellipse {
Width = 3, Height = 3, Fill = new SolidColorBrush(Colors.Blue)
};
CanvasCalibration.Children.Add(g);
Canvas.SetTop(g, p.Y);
Canvas.SetLeft(g, p.X);
// Draw also to Drawing Visual
drawingContext.DrawEllipse(Brushes.Blue, null, p, 3, 3);
}
#endregion
#region Draw Standard deviation indicator
CalibrationFeedbackPoint feedback = new CalibrationFeedbackPoint();
double stdDevGazeCoordinates = trackerPoint.stdDeviationGazeCoordinatesLeft;
// binocular
if (trackerPoint.stdDeviationGazeCoordinatesRight != 0)
{
stdDevGazeCoordinates += trackerPoint.stdDeviationGazeCoordinatesRight;
stdDevGazeCoordinates = stdDevGazeCoordinates / 2;
}
feedback.Width = stdDevGazeCoordinates;
feedback.Height = stdDevGazeCoordinates;
if (feedback.Width > 80)
{
feedback.EllipseBackground.Fill = new SolidColorBrush(Colors.Red);
}
else
{
feedback.EllipseBackground.Fill = new SolidColorBrush(Colors.Green);
}
CanvasCalibration.Children.Add(feedback);
#endregion
#region Average mean gaze
Point avgMeanGazeCoordinates = new Point(trackerPoint.meanGazeCoordinatesLeft.X, trackerPoint.meanGazeCoordinatesLeft.Y);
//// binocular
//if (trackerPoint.meanGazeCoordinatesRight.X != 0)
//{
// avgMeanGazeCoordinates.Y += trackerPoint.meanGazeCoordinatesRight.Y;
// avgMeanGazeCoordinates.X += trackerPoint.meanGazeCoordinatesRight.X;
// avgMeanGazeCoordinates.X = avgMeanGazeCoordinates.X/2;
// avgMeanGazeCoordinates.Y = avgMeanGazeCoordinates.Y/2;
//}
// Position avgMean feedback, compensate for relative to full screen coordinates
Point adjustedAvgMeanGazePoint = AdjustPointToPartial(avgMeanGazeCoordinates);
Canvas.SetTop(feedback, adjustedAvgMeanGazePoint.Y);
Canvas.SetLeft(feedback, adjustedAvgMeanGazePoint.X);
Panel.SetZIndex(feedback, 2);
// Draw also to Drawing Visual
drawingContext.DrawEllipse(
feedback.EllipseBackground.Fill,
null,
adjustedAvgMeanGazePoint,
stdDevGazeCoordinates,
stdDevGazeCoordinates);
#region Connect with line if more than 80 px away
// When point is more than 80px. away connect it with a dotted line to center
if (trackerPoint.meanGazeCoordinatesLeft.Y >= calPoint.Point.Y + 80 ||
trackerPoint.meanGazeCoordinatesLeft.Y <= calPoint.Point.Y + 80)
{
// Start line
var myLine = new Line {
X1 = calPoint.Point.X, Y1 = calPoint.Point.Y
};
// End line
if (!double.IsNaN(feedback.Width))
{
myLine.X2 = adjustedAvgMeanGazePoint.X + feedback.Width / 2;
}
if (!double.IsNaN(feedback.Height))
{
myLine.Y2 = adjustedAvgMeanGazePoint.Y + feedback.Height / 2;
}
myLine.Stroke = Brushes.LightSteelBlue;
var dashes = new DoubleCollection {
2, 2
};
myLine.StrokeDashArray = dashes;
myLine.StrokeDashCap = PenLineCap.Round;
CanvasCalibration.Children.Add(myLine);
// Draw also to Drawing Visual
Pen linePen = new Pen();
linePen.Brush = myLine.Stroke;
linePen.DashStyle = DashStyles.Dash;
linePen.DashCap = PenLineCap.Round;
drawingContext.DrawLine(
linePen,
new Point(myLine.X1, myLine.Y1),
new Point(myLine.X2, myLine.Y2));
}
#endregion
#endregion
#region Calculate sum std dev
sumDistFromTargetsY += avgMeanGazeCoordinates.Y - (calPoint.Point.Y - calPoint.Diameter / 2);
sumDistFromTargetsX += avgMeanGazeCoordinates.X - (calPoint.Point.X - calPoint.Diameter / 2);
double sumStdDevAvg = trackerPoint.stdDeviationGazeCoordinatesLeft + trackerPoint.stdDeviationGazeCoordinatesRight;
sumStdDevAvg = sumStdDevAvg / 2;
sumStdDeviation += sumStdDevAvg;
#endregion
}
}
#endregion
#region Draw calibration points (last to stay on top)
calPoint.Visibility = Visibility.Visible;
calPoint.Opacity = 0.5;
CanvasCalibration.Children.Add(calPoint);
Canvas.SetTop(calPoint, calPoint.Point.Y - calPoint.Diameter / 2);
Canvas.SetLeft(calPoint, calPoint.Point.X - calPoint.Diameter / 2);
Panel.SetZIndex(calPoint, 99);
// Draw also to Drawing Visual
SolidColorBrush whiteBrush = new SolidColorBrush();
whiteBrush.Color = Color.FromArgb(122, 255, 255, 255);
drawingContext.DrawEllipse(
whiteBrush,
null,
calPoint.Point,
calPoint.Diameter / 2,
calPoint.Diameter / 2);
drawingContext.DrawEllipse(
null,
new Pen(Brushes.Black, 1f),
calPoint.Point,
8,
8);
// Enable recalibration
calPoint.OnClick += RecalibratePoint;
#endregion
}
// Generate values for the 1-5 star ratings-control from quality feeback
AvgSumStdDev = sumStdDeviation / calibTargets.Count;
AvgDistFromTargets = ((sumDistFromTargetsY + sumDistFromTargetsX) / 2) / calibTargets.Count;
// Now perform the rendering of the Visual to a bitmap
drawingContext.Close();
var bmp = new RenderTargetBitmap((int)ActualWidth, (int)ActualHeight, 96, 96, PixelFormats.Pbgra32);
bmp.Render(drawingVisual);
return(bmp);
}
private void AnimateBetweenPoints_Completed(object sender, EventArgs e)
{
// Hide last point, make a switch to the next point
currentPoint.Visibility = Visibility.Collapsed;
currentPoint = nextPoint;
currentPoint.Visibility = Visibility.Visible;
// Get next point and continue..
DisplayPoints();
}
private void EyeTrackerPointStop(CalibrationPoint calPoint)
{
currentPoint = calPoint;
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(PointStopEvent, calPoint);
RaiseEvent(args1);
}
private void EyeTrackerPointStart(CalibrationPoint calPoint)
{
currentPoint = calPoint;
//GTCommands.Instance.CalibrationPointStart(InstancePoint.Number, InstancePoint.Point);
var args1 = new RoutedEventArgs();
args1 = new RoutedEventArgs(PointStartEvent, calPoint);
RaiseEvent(args1);
}
private static CalibrationPoint CopyPoint(CalibrationPoint point)
{
var newPoint = new CalibrationPoint
{
Number = point.Number,
Point = point.Point,
PointColor = point.PointColor,
Diameter = point.Diameter,
PointDuration = point.PointDuration
};
return newPoint;
}
private void SetRandomImage(CalibrationPoint point)
{
if (errorLoadingImages)
return;
try
{
var imageList = new ArrayList();
var di = new DirectoryInfo(Directory.GetCurrentDirectory() + "\\InfantGraphics\\");
foreach (FileInfo file in di.GetFiles())
{
imageList.Add(file.FullName);
}
var random = new Random();
int num = random.Next(imageList.Count - 1);
var img = new BitmapImage(new Uri(imageList[num].ToString()));
point.PointImage(img);
}
catch (Exception)
{
errorLoadingImages = true;
MessageBox.Show("Could not locate the \"InfantGraphics\" folder, please ensure that it exists in the application directory.");
}
}
private void CanvasCalibration_OnUIElementMoved(object sender, RoutedEventArgs e)
{
var replacePoint = e.OriginalSource as CalibrationPoint;
var oldPoint = new CalibrationPoint(99, new Point(), 0, new SolidColorBrush(), 1);
int index = 0;
int foundIndex = 0;
foreach (CalibrationPoint c in calibrationPoints)
{
if (replacePoint != null)
if (c.Number == replacePoint.Number)
foundIndex = index;
index++;
}
calibrationPoints[foundIndex] = replacePoint;
RecalibratePoint(calibrationPoints[foundIndex], new RoutedEventArgs());
}
public void Start()
{
Reset();
GeneratePositions(this.Width, this.Height);
if (RandomOrder)
RandomizeCalibrationPoints();
if (currentPoint == null)
currentPoint = GetNextPoint();
Cursor = Cursors.None; // Redisplay after calibration
StartWithFirstFakePoint(new Point(0, 0), currentPoint.Point);
}
public void GeneratePositions(double areaWidth, double areaHeight)
{
int pointNumber = 1;
int columnCount = 4; // default 12 points (indx starting at 1-4, eg. 4x3)
int rowCount = 3; // default 12 points (indx starting at 1-3, eg. 4x3)
switch (numberOfPoints)
{
case 9:
columnCount = 3;
rowCount = 3;
break;
case 12:
columnCount = 4;
rowCount = 3;
break;
case 16:
columnCount = 4;
rowCount = 4;
break;
default:
columnCount = 3;
rowCount = 3;
break;
}
double rowSpacer = (areaHeight - pointDiameter) / (rowCount - 1);
double columnSpacer = (areaWidth - pointDiameter) / (columnCount - 1);
//if (UseInfantGraphics)
// calibrationPointDiameter = calibrationPointDiameter * 2;
//rowSpacer = rowSpacer - pointDiameter / 2;
//columnSpacer = columnSpacer - pointDiameter / 2;
// Adjust for 0-based array loop
rowCount -= 1;
columnCount -= 1;
for (int row = 0; row <= rowCount; row++)
{
for (int column = 0; column <= columnCount; column++)
{
var pos = new Point(column * columnSpacer, row * rowSpacer);
pos.Y = pos.Y + pointDiameter / 2;
// Compensate for top/left positioning, eg. 0,0 is top/left when it should be 25,25 (center of point)
pos.X = pos.X + pointDiameter / 2;
var calPoint = new CalibrationPoint(
pointNumber,
pos,
pointDiameter,
_colorPoints,
PointDuration);
if (UseInfantGraphics)
{
SetRandomImage(calPoint);
}
calibrationPoints.Add(calPoint);
pointNumber++;
}
}
}
