private static void CreateAndVisualizeSensitiveFilteredFixationsStream()
{
_fixationDataStream = _host.Streams.CreateFixationDataStream();
_fixationDataStream
.Begin((x, y, _) =>
{
Console.WriteLine("\n" +
"Fixation started at X: {0}, Y: {1}", x, y);
_fixationBeginTime = DateTime.Now;
})
.Data((x, y, _) =>
{
Console.WriteLine("During fixation, currently at: X: {0}, Y: {1}", x, y);
})
.End((x, y, _) =>
{
Console.WriteLine("Fixation ended at X: {0}, Y: {1}", x, y);
if (_fixationBeginTime != default(DateTime))
{
Console.ForegroundColor = ConsoleColor.Cyan;
Console.WriteLine("Fixation duration: {0}", DateTime.Now - _fixationBeginTime);
Console.ForegroundColor = _defaultForegroundColor;
}
});
}
public void StartGazeDataStreams(GazePointCallback gazePointCallback, FixationCallback fixationCallback, EyePositionCallback eyePositionCallback)
{
if (gazePointCallback != null)
{
if (gazePointDataStream == null)
{
gazePointDataStream = eyeXHost.CreateGazePointDataStream(Tobii.EyeX.Framework.GazePointDataMode.Unfiltered);
}
gazePointDataStream.Next += InvokeGazePointEvent;
GazePointEvent += gazePointCallback;
GazePointEvent += RecordGazePoint;
}
if (fixationCallback != null)
{
if (fixationDataStream == null)
{
fixationDataStream = eyeXHost.CreateFixationDataStream(FixationDataMode.Sensitive);
}
fixationDataStream.Next += InvokeFixationEvent;
FixationEvent += fixationCallback;
FixationEvent += RecordFixation;
}
if (eyePositionCallback != null)
{
if (eyePositionDataStream == null)
{
eyePositionDataStream = eyeXHost.CreateEyePositionDataStream();
}
eyePositionDataStream.Next += InvokeEyePositionEvent;
EyePositionEvent += eyePositionCallback;
EyePositionEvent += RecordEyePosition;
}
}
//starts a fixation data stream (class constructor)
public _Tobii()
{
//create connection to Tobii Eyetracker
_host = new Host();
_fixationDataStream = _host.Streams.CreateFixationDataStream();
_gazePointDataStream = _host.Streams.CreateGazePointDataStream();
}
public TobiiAgentAnalyzer(object host)
{
//m_FixationBeginWithoutEnd = false;
m_SentForRecognition = false;
this.m_host = new Host();
m_Stream = m_host.Streams.CreateFixationDataStream(FixationDataMode.Sensitive, true);
}
/// <summary>
/// Detect EyeX engine presence, and starts it to get gaze positions
/// </summary>
/// <param name="fps">Number of gaze positions expected per second</param>
/// <exception cref="Exception">If EyeX engine is not installed or running</exception>
public Gaze(int fps)
{
this.interpolated = duration * fps / 1000;
this.Position = Cursor.Position;
positions = new Queue <Point>(interpolated);
// simple check of EyeX presence
switch (EyeXHost.EyeXAvailability)
{
case EyeXAvailability.NotAvailable:
throw new Exception("Please install the EyeX Engine");
case EyeXAvailability.NotRunning:
throw new Exception("Please make sure that the EyeX Engine is started");
}
Engine = new EyeXHost();
// track display size
Engine.ScreenBoundsChanged += (object s, EngineStateValue <Rect> e) => displaySize = e.Value;;
// track gaze position to set cursor on it
gazeStream = Engine.CreateFixationDataStream(FixationDataMode.Sensitive);
gazeStream.Next += OnGazeChange;
// start the EyeX engine
Engine.Start();
displaySize = Engine.ScreenBounds.Value;
// start timer
timer = new System.Timers.Timer(duration / interpolated);
timer.Enabled = true;
timer.Elapsed += OnTick;
}
/*************************EYE_X_COMPONENT.INIT********************/
/*
* Receive method for the EyeX gaze data stream.
*/
private void ReceiveGazeData(Envelope e)
{
using (gazeDataStream = host.CreateGazePointDataStream(GazePointDataMode.LightlyFiltered))
{
Console.WriteLine("EyeX data stream initiated.");
gazePoint.Post(gazeDataStream, e.OriginatingTime);
using (eyePositionStream = host.CreateEyePositionDataStream())
{
Console.WriteLine("EyeX eye position stream initiated.");
eyeData.Post(eyePositionStream, e.OriginatingTime);
gazeDataStream.Next += (s, q) =>
{
frameDataX = q.X;
frameDataY = q.Y;
};
eyePositionStream.Next += (s, q) =>
{
leftEyeX = q.LeftEye.X;
leftEyeY = q.LeftEye.Y;
leftEyeZ = q.LeftEye.Z;
leftEyeNormalizedX = q.LeftEyeNormalized.X;
leftEyeNormalizedY = q.LeftEyeNormalized.Y;
leftEyeNormalizedZ = q.LeftEyeNormalized.Z;
rightEyeX = q.RightEye.X;
rightEyeY = q.RightEye.Y;
rightEyeZ = q.RightEye.Z;
rightEyeNormalizedX = q.RightEyeNormalized.X;
rightEyeNormalizedY = q.RightEyeNormalized.Y;
rightEyeNormalizedZ = q.RightEyeNormalized.Z;
};
Console.WriteLine("Listening for gaze data...");
using (FixationDataStream fixationStream = host.CreateFixationDataStream(FixationDataMode.Sensitive))
{
fixationData.Post(fixationStream, e.OriginatingTime);
fixationStream.Next += (s, q) =>
{
fixationX = q.X;
fixationY = q.Y;
};
Console.WriteLine("Recording fixation points...");
Console.In.Read();
}
}
}
}
private static void CreateAndVisualizeSlowFilteredFixationsStream()
{
if (_fixationDataStream != null)
{
_fixationDataStream.Next -= OnNextFixation;
}
_fixationDataStream = _host.Streams.CreateFixationDataStream(FixationDataMode.Slow);
_fixationDataStream.Next += OnNextFixation;
}
public Form1()
{
eyeXHost.Start();
fixation = eyeXHost.CreateFixationDataStream(FixationDataMode.Slow);
InitializeComponent();
pictureBox1.ImageLocation = @"..\a.png";
pictureBox3.ImageLocation = @"..\c.png";
pictureBox2.ImageLocation = @"..\b.png";
fixation.Next += fixationEventHandler;
}
private void CollectData()
{
double previousTime = GetUnixTimestampForNow();
double elapsedTime = 0;
double startTime = 0;
double endTime = 0;
int numFixations = 0;
double lastFixationStartTime = 0;
double fixationLengthRunningTotal = 0;
// Increment the number of fixations each time we receive data from the eye tracker.
fixationDataStream = eyeXHost.CreateFixationDataStream(FixationDataMode.Sensitive);
System.EventHandler <FixationEventArgs> inc = delegate(object s, FixationEventArgs e) {
if (e.EventType == FixationDataEventType.Begin)
{
numFixations++;
lastFixationStartTime = e.Timestamp;
}
if (e.EventType == FixationDataEventType.End)
{
fixationLengthRunningTotal += e.Timestamp - lastFixationStartTime;
}
};
fixationDataStream.Next += inc;
// Keep collecting the data until we tell it not to.
while (!shouldEndCollection)
{
if (elapsedTime < instanceLength)
{
elapsedTime += GetUnixTimestampForNow() - previousTime;
previousTime = GetUnixTimestampForNow();
}
else
{
endTime = GetUnixTimestampForNow();
double fixationsPerSecond = numFixations / (instanceLength / 1000);
double meanLengthOfFixation = fixationLengthRunningTotal / numFixations;
Instance instance = new Instance(startTime, endTime, numFixations, fixationsPerSecond, meanLengthOfFixation, instanceClass);
collectedInstances.Add(instance);
startTime = GetUnixTimestampForNow();
numFixations = 0;
fixationLengthRunningTotal = 0;
elapsedTime = 0;
previousTime = GetUnixTimestampForNow();
}
}
}
public GazeHandler()
{
_host = new Host();
_wpfInteractorAgent = _host.InitializeWpfAgent();
_gazePointDataStream = _host.Streams.CreateGazePointDataStream();
_fixationDataStream = _host.Streams.CreateFixationDataStream();
_fixationDataStream.Subscribe(this);
_gazePointDataStream.Subscribe(this);
}
private static void SetupStream()
{
host = new Host();
stream = host.Streams.CreateFixationDataStream(FixationDataMode.Slow);
stream.Data(
(x, y, ts) =>
{
currentGazePoint.X = (int)Math.Round(x);
currentGazePoint.Y = (int)Math.Round(y);
});
}
public EyeTrackingHandler(Gecko.GeckoWebBrowser b, TransparentPanel scroll, Keyboard keys, FavoritesPanel favorites, Button click, Panel close)
{
host = new Host();
fixationStream = host.Streams.CreateFixationDataStream(FixationDataMode.Slow);
HandleFixation();
acceptClick = true;
circleCenter = new Point(1, 1);
zooming = false;
zoomingExecution = false;
freePointingExecution = false;
pointedPosition = new Point(1, 1);
browser = b;
browserX = browser.Location.X;
width = browserX + browser.Width;
browserY = browser.Location.Y;
height = browserY + browser.Height;
clickButton = click;
scrollPanel = scroll;
keyboardPanel = keys;
closePanel = close;
favoritesPanel = favorites;
firstPointedX = 0;
firstPointedY = 0;
pointedX = 0;
pointedY = 0;
fixationCounter = 0;
requiredSamplings = 120;
radiusLimit = 150;
zoomingSamplings = 30;
scrollingSamplings = 10;
settingsPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.MyDocuments), "EyeBrowserTimingPreferences.txt");
if (File.Exists(settingsPath))
{
using (StreamReader reader = new StreamReader(settingsPath))
{
requiredSamplings = Int32.Parse(reader.ReadLine());
radiusLimit = Int32.Parse(reader.ReadLine());
zoomingSamplings = Int32.Parse(reader.ReadLine());
scrollingSamplings = Int32.Parse(reader.ReadLine());
}
}
else
{
using (StreamWriter writer = new StreamWriter(settingsPath, false))
{
writer.WriteLine(requiredSamplings);
writer.WriteLine(radiusLimit);
writer.WriteLine(zoomingSamplings);
writer.WriteLine(scrollingSamplings);
}
}
}
public Form1()
{
eyeXHost.Start();
fixation = eyeXHost.CreateFixationDataStream(FixationDataMode.Slow);
InitializeComponent();
comboBox1.SelectedItem = comboBox1.Items[0];
s.SelectVoice("Microsoft Zira Desktop");
//bmp = new Bitmap(500, 500);
//using (Graphics g = Graphics.FromImage(bmp))
//{
// g.Clear(Color.White);
//}
}
public void StopAllGazeDataStream()
{
SetGazeDataRecording(false, false, false);
GazePointEvent = null;
gazePointDataStream.Dispose();
gazePointDataStream = null;
FixationEvent = null;
fixationDataStream.Dispose();
fixationDataStream = null;
EyePositionEvent = null;
eyePositionDataStream.Dispose();
eyePositionDataStream = null;
}
protected override void OnOpen()
{
PrintSampleIntroText();
// Everything starts with initializing Host, which manages the connection to the
// Tobii Engine and provides all the Tobii Core SDK functionality.
// NOTE: Make sure that Tobii.EyeX.exe is running
host = new Host();
// Initialize Fixation data stream.
fixationDataStream = host.Streams.CreateFixationDataStream();
// Because timestamp of fixation events is relative to the previous ones
// only, we will store them in this variable.
var fixationBeginTime = 0d;
fixationDataStream.Next += (o, fixation) =>
{
// On the Next event, data comes as FixationData objects, wrapped in a StreamData<T> object.
var fixationPointX = fixation.Data.X;
var fixationPointY = fixation.Data.Y;
switch (fixation.Data.EventType)
{
case FixationDataEventType.Begin:
fixationBeginTime = fixation.Data.Timestamp;
string beginString = string.Format("begin|{0}|{1}", fixationPointX, fixationPointY);
Send(beginString);
break;
case FixationDataEventType.Data:
string duringString = string.Format("during|{0}|{1}", fixationPointX, fixationPointY);
Send(duringString);
break;
case FixationDataEventType.End:
string endString = string.Format("end|{0}|{1}", fixationPointX, fixationPointY);
Send(endString);
string fixString = string.Format("duration|{0}|null",
fixationBeginTime > 0
? TimeSpan.FromMilliseconds(fixation.Data.Timestamp - fixationBeginTime)
: TimeSpan.Zero);
Send(fixString);
break;
default:
throw new InvalidOperationException("Unknown fixation event type, which doesn't have explicit handling.");
}
};
}
private void StartButton_Click(object sender, EventArgs e)
{
StartOverButton_Click(sender, e);
fsFIX = new FileStream(@"C: \Users\CTS\Desktop\testFIX.txt", FileMode.Create, FileAccess.Write);
fsSAC = new FileStream(@"C: \Users\CTS\Desktop\testSAC.txt", FileMode.Create, FileAccess.Write);
swFIX = new StreamWriter(fsFIX);
swSAC = new StreamWriter(fsSAC);
hostFIX = new Host();
hostSAC = new Host();
fixationDataStream = hostFIX.Streams.CreateFixationDataStream(Tobii.Interaction.Framework.FixationDataMode.Slow);
gazePointDataStream = hostSAC.Streams.CreateGazePointDataStream();
fixationDataStream.Data((x, y, timestamp) => addToTXTFIX(x, y, timestamp));
gazePointDataStream.GazePoint((x, y, ts) => addToTXTSAC(x, y, ts));
}
public void Connect()
{
if (!_isConnected)
{
_TobiiHost.EnableConnection();
_TobiiWPFAgent = _TobiiHost.InitializeWpfAgent();
_GazePointDataStream = _TobiiHost.Streams.CreateGazePointDataStream(Tobii.Interaction.Framework.GazePointDataMode.Unfiltered);
_GazePointDataStream.Next += OnGazePointData;
_FixationDataStream = _TobiiHost.Streams.CreateFixationDataStream();
_FixationDataStream.Next += OnFixationData;
_EyePositionStream = _TobiiHost.Streams.CreateEyePositionStream(true);
_EyePositionStream.Next += OnEyePositionData;
_isConnected = true;
}
}
public static void Main(string[] args)
{
// create host stream for Tobii
_host = new Host();
// _gazePointDataStream = _host.Streams.CreateGazePointDataStream();
_fixationDataStream = _host.Streams.CreateFixationDataStream();
// set params to save streams on file
string gaze_path = "gazeStream.csv";
string fixs_path = "fixationStream.csv";
// call for save on file function
stream_read_write(path_to_py, gaze_path, fixs_path);
Console.Write("----------------------------------------------------------------------------------------------------");
Console.ReadKey();
}
public static void Capture()
{
try
{
// Initializes Eyetracker.
EyeXHost eyeXHost = new EyeXHost();
eyeXHost.Start();
FixationDataStream lightlyFilteredGazeDataStream = eyeXHost.CreateFixationDataStream(FixationDataMode.Slow);
lightlyFilteredGazeDataStream.Next += lightlyFilteredGazeDataStream_Next;
_eyeXhost = eyeXHost;
// Timer which checks URL every 0.1s
Timer t = new Timer();
t.Interval = 100;
t.Elapsed += CheckUrl;
// Starting URL. CHANGE IT HERE IF NEEDED.
string url = "http://panache.fr/";
//string url = "http://www.fmf.uni-lj.si/si/";
//string url = "http://stackoverflow.com/questions/21555394/how-to-create-bitmap-from-byte-array";
/* Creates new visible ChromeDriver, maximizes the browser window, navigates to the starting URL
* and starts the "check url" timer. CHANGE THE PATH TO THE DRIVER HERE IF NEEDED.
*/
driver = new ChromeDriver("D:\\IJS\\EyeTracker");
driver.Manage().Window.Maximize();
driver.Navigate().GoToUrl(url);
t.Start();
lastUrl = url;
Console.ReadKey();
}
finally
{
// Dispose the driver if the above code fails.
if (driver != null)
{
driver.Dispose();
}
}
}
// KeyPress event
private void TrialForm_KeyPress(object sender, KeyPressEventArgs e)
{
if (e.KeyChar == (char)Keys.Escape)
{
StopTrials();
}
else if (e.KeyChar == (char)Keys.Space && trialState == 0)
{
if (true) //if (gazeCentered())
{
//Launch trials thread
trialsThread = new Thread(new ThreadStart(TrialsRunningThread))
{
IsBackground = true
};
trialsThread.Start();
//Init tobbi gaze
fixationDataStream = MainForm.tobii4C.Streams.CreateFixationDataStream();
fixationDataStream.Begin((x, y, timestamp) =>
{
if (x != 0)
{
currentFixation = new Fixation();
currentFixation.x = x;
currentFixation.y = y;
currentFixation.timestamp = timestamp;
}
});
fixationDataStream.End((x, y, timestamp) =>
{
currentFixation.timespan = timestamp;
trialFixations.Add(currentFixation);
});
}
else
{
synth.SpeakAsync(fixCenterMsg);
}
}
}
public DeviceInteractionHost()
{
MainWindow _mainWindow = (MainWindow)Application.Current.MainWindow;
//Device
_host = new Host();
//init tobii streams
_fixationDataStream = _host.Streams.CreateFixationDataStream();
//_fixationDataStream = _host.Streams.CreateFixationDataStream(Tobii.Interaction.Framework.FixationDataMode.Slow);
_gazePointDataStream = _host.Streams.CreateGazePointDataStream();
lsloffset = _mainWindow.stopwatch.ElapsedMilliseconds - liblsl.local_clock() * 1000;
_lslDevices = new List <LSLDevice>();
_tasks = new List <Task>();
_source = new CancellationTokenSource();
_token = _source.Token;
_mre = new ManualResetEvent(false);
}
public void StartServer()
{
this.eyeXHost = new EyeXHost();
this.eyeXHost.Start();
this.gazeDataStream = eyeXHost.CreateGazePointDataStream(GazePointDataMode.LightlyFiltered);
this.gazeDataStream.Next += new System.EventHandler<EyeXFramework.GazePointEventArgs>(this.HandleEyeGazeEvent);
this.fixationDataStream = eyeXHost.CreateFixationDataStream(FixationDataMode.Slow);
this.fixationDataStream.Next += new System.EventHandler<EyeXFramework.FixationEventArgs>(this.HandleEyeFixationEvent);
try
{
IPAddress ipAddr = IPAddress.Parse(host);
tcpServer = new TcpClient();
tcpServer.Connect(ipAddr, port);
swSender = new StreamWriter(tcpServer.GetStream());
}
catch
{
this.StopServer();
}
}
public TobiiAgentAnalyzer()
{
this.sentForRecognition = false;
this.host = new Host();
this.stream = host.Streams.CreateFixationDataStream();
}
/// <summary>
/// Gets a fixation data stream.
/// </summary>
/// <param name="mode">Specifies the kind of data processing to be applied by the EyeX Engine.</param>
/// <returns>The data stream.</returns>
public FixationDataStream CreateFixationDataStream(FixationDataMode mode)
{
var dataStream = new FixationDataStream(mode);
RegisterDataStreamObserver(dataStream);
return dataStream;
}
