private void UpdateTimer_Tick(object sender, EventArgs e)
{
lock (chartLock)
{
if (motionLevel > motionTriggerThreshold)
{
if (!playOnce && enableBeepOnTrigger)
{
playOnce = true;
PlayBeep();
}
if (!captureImageOnce && cbEnableSaveImg.IsChecked == true)
{
captureImageOnce = true;
CaptureAsImage();
}
}
// update data into collection
DateTime currentTime = DateTime.Now;
double elapsedTime = (currentTime - startTime).TotalSeconds;
motionLevelData = new MotionLevelData(elapsedTime, motionLevel, motionTriggerThreshold, startTime, currentTime, detectedObjectsCount);
GraphDataCollection.Add(motionLevelData);
if (GraphDataCollection.Count > 10000)
{
GraphDataCollection.RemoveAt(0);
}
// update sensitivity bar
UpdateSensivityBarUI();
// update graph
OxyGraph.InvalidatePlot(true);
// autoscroll graph x-axis
if ((elapsedTime + 0.001) >= xAxis.Maximum)
{
double panStep = (xAxis.ActualMaximum - xAxis.DataMaximum) * xAxis.Scale;
xAxis.Pan(panStep);
}
// write to log file
if (!customIntervalEnabled)
{
LogData(motionLevelData);
}
}
}
private void LogData(MotionLevelData data)
{
if (data == null)
{
return;
}
if (cbLimitDataLog.IsChecked == true && pointsLimitCounter > Convert.ToInt32(tbLimitDataLogPoint.Text))
{
canLogData = false;
UpdateStatusOnUI();
return;
}
if (cbLogGreaterThanThreshold.IsChecked == true && data.Value < data.ThresholdValue)
{
return;
}
if (canLogData)
{
try
{
if (!File.Exists(datalogFilePath))
{
const string header = "Elapsed Time (s), Motion Level, Trigger Threshold, Blob Count, Start Time, Current Time";
File.WriteAllText(datalogFilePath, header + Environment.NewLine);
}
var sb = new StringBuilder();
sb.Append(data.ElapsedTime);
sb.Append("," + data.Value);
sb.Append("," + data.ThresholdValue);
sb.Append("," + data.BlobCount);
sb.Append("," + data.StartTime.ToString("yyyy-MM-dd hh:mm:ss.fff"));
sb.Append("," + data.CurrentTime.ToString("yyyy-MM-dd hh:mm:ss.fff"));
sb.Append(Environment.NewLine);
File.AppendAllText(datalogFilePath, sb.ToString());
pointsLimitCounter++;
}
catch
{
// ignored
}
}
}