// Double Exp Function
MathUtil.Vector2 DoubleExpFilter(MathUtil.Vector2 InputPos)
{
// s0
if (!IsTime0Past)
{
HistoryPointTime0 = InputPos;
IsTime0Past = true;
return(InputPos);
}
// s1
if (!IsTime1Past)
{
s = InputPos;
b = InputPos - HistoryPointTime0;
IsTime1Past = true;
return(s + b);
}
MathUtil.Vector2 NextS, NextB;
NextS = SmoothFactorAValue * InputPos + MathUtil.MathUtil.Clamp01(1 - SmoothFactorAValue) * (s - b);
NextB = SmoothFactorBValue * (NextS - s) + MathUtil.MathUtil.Clamp01(1 - SmoothFactorBValue) * b;
s = NextS;
b = NextB;
return(s + b);
}
private void GetGazePointTimer_Tick(object sender, EventArgs e)
{
// 抓眼動位置及儲存
stream.GazePoint((x, y, ts) => CopyToGlobalVariable(x, y, ts));
// Clipping 到螢幕中
ClippingToScreenSize();
// 代表資料不一樣
// 要覆蓋 last 的值
if (lastTimeStamp != timeStamp)
{
// 使用 Double Exp
MathUtil.Vector2 tempVector2 = DoubleExpFilter(new MathUtil.Vector2(eyeX, eyeY));
eyeX = tempVector2.X;
eyeY = tempVector2.Y;
lastEyeX = eyeX;
lastEyeY = eyeY;
lastTimeStamp = timeStamp;
// 是否要被眼動儀 Control
if (IsEnableControl)
{
SetCursorPos((int)eyeX, (int)eyeY);
// 點擊判斷
if (MathUtil.Vector2.Distance(clickTempVector, tempVector2) > FreezeDistanceToClick)
{
clickTempVector = tempVector2;
clickTime = 0;
}
else if ((float)(clickTime * GetGazePointTimer.Interval) / 1000 > FreezeTimeToClick)
{
if (IsSingleClickModel)
{
DoSingleClick();
}
else
{
DoDoubleClick();
}
clickTempVector = tempVector2;
clickTime = 0;
}
else
{
clickTime++;
}
}
#region 記錄相關
if (IsRecording)
{
string line = eyeX.ToString() + "," + eyeY.ToString() + "," + timeStamp.ToString();
LineData.Add(line);
if (TryToUnRecording)
{
// 要暫停 Hook 不然會無法使用鍵盤打檔名
GetGazePointTimer.Enabled = false;
UnHook();
// 找到位置，並儲存
if (outputFileDialog.ShowDialog() == DialogResult.OK)
{
// 寫出檔案
string outputStr = "X, Y, TimeStamp\n";
for (int i = 0; i < LineData.Count; i++)
{
outputStr += LineData[i] + "\n";
}
System.IO.File.WriteAllText(outputFileDialog.FileName, outputStr);
}
LineData.Clear();
// 繼續抓
GetGazePointTimer.Enabled = true;
SetHook();
TryToUnRecording = false;
IsRecording = false;
}
}
#endregion
}
}
