public GazeDelta Next(GazeData data)
{
if (data == null)
{
return(null);
}
var result =
new GazeDelta
{
IsFixated = data.IsFixated,
TimeStamp = data.TimeStamp,
Presence = (data.State & GazeData.STATE_TRACKING_PRESENCE) != 0,
Gaze = (data.State & GazeData.STATE_TRACKING_PRESENCE) != 0,
Failed = (data.State & GazeData.STATE_TRACKING_FAIL) != 0,
LostTracking = (data.State & GazeData.STATE_TRACKING_LOST) != 0,
Eyes = (data.State & GazeData.STATE_TRACKING_EYES) != 0,
LeftEye = data.LeftEye,
RightEye = data.RightEye,
RawCoordinates = data.RawCoordinates,
SmoothedCoordinates = data.SmoothedCoordinates,
Head = data.HeadPosition(),
IsUsable = true,
Last = this
};
Last = null;
return(result);
}
public void OnGazeUpdate(GazeData gazeData)
{
var isValid = ((gazeData.State & GazeData.STATE_TRACKING_GAZE) != 0) &&
((gazeData.State & GazeData.STATE_TRACKING_PRESENCE) != 0) &&
((gazeData.State & GazeData.STATE_TRACKING_EYES) != 0) &&
((gazeData.State & GazeData.STATE_TRACKING_FAIL) == 0) &&
((gazeData.State & GazeData.STATE_TRACKING_LOST) == 0) &&
gazeData.SmoothedCoordinates != null &&
gazeData.SmoothedCoordinates.X != 0 &&
gazeData.SmoothedCoordinates.Y != 0
;
if (!isValid)
{
return;
}
var headPosition = gazeData.HeadPosition();
if (headPosition == null)
{
return;
}
//Now that we can suppose the data is probably valid we can make use of it.
var cursorPoint = GetCursorPosition();
var gazePoint = gazeData.SmoothedCoordinates;
ZCurrent = headPosition.Z;
YGaze = gazePoint.Y;
YMouse = cursorPoint.Y;
}