internal static GazeData ToGazeData(this Tobii.Research.GazeDataEventArgs gazeDataItem)
{
var validity = GetEyeValidity(gazeDataItem.LeftEye.GazePoint.Validity, gazeDataItem.RightEye.GazePoint.Validity);
var gaze = new GazeData
(
validity,
new EyeGazeData
(
validity.GetLeftEyeValidity(),
gazeDataItem.LeftEye.GazePoint.PositionOnDisplayArea.ToPoint2(),
gazeDataItem.LeftEye.GazePoint.PositionInUserCoordinates.ToPoint3(),
gazeDataItem.LeftEye.GazeOrigin.PositionInUserCoordinates.ToPoint3(),
gazeDataItem.LeftEye.GazeOrigin.PositionInTrackBoxCoordinates.ToPoint3(),
gazeDataItem.LeftEye.Pupil.PupilDiameter
),
new EyeGazeData
(
validity.GetRightEyeValidity(),
gazeDataItem.RightEye.GazePoint.PositionOnDisplayArea.ToPoint2(),
gazeDataItem.RightEye.GazePoint.PositionInUserCoordinates.ToPoint3(),
gazeDataItem.RightEye.GazeOrigin.PositionInUserCoordinates.ToPoint3(),
gazeDataItem.RightEye.GazeOrigin.PositionInTrackBoxCoordinates.ToPoint3(),
gazeDataItem.RightEye.Pupil.PupilDiameter
),
gazeDataItem.DeviceTimeStamp,
DateTime.Now // TODO derive timestamp from Tobii timestamp
);
return(gaze);
}
private void Tracker_GazeDataReceived(object sender, Tobii.Research.GazeDataEventArgs e)
{
try
{
GazeDataReceived?.Invoke(this, e.ToGazeData());
}
catch (Exception exception)
{
Debug.WriteLine("Something bad happened when data came from Tobii device");
Debug.WriteLine(exception.ToString());
}
}
