//LORENTZ FITTING
private void LorentzStartButton_Click(object sender, EventArgs e)
{
LorentzTimer.Start();
appSettings.isFitting = true;
LorentzStopButton.Enabled = true;
LorentzStartButton.Enabled = false;
StartPeakTrackButton.Enabled = true;
}
private void LorentzStopButton_Click(object sender, EventArgs e)
{
LorentzTimer.Stop();
FftChart.Series["Series2"].Points.Clear();
appSettings.isFitting = false;
LorentzStartButton.Enabled = true;
LorentzStopButton.Enabled = false;
StartPeakTrackButton.Enabled = false;
StopPeakTrackButton.PerformClick();
}
private void LorentzTimer_Tick(object sender, EventArgs e)
{
totalSW.Start();
Stopwatch fittingSW = new Stopwatch();
Stopwatch chartingSW = new Stopwatch();
bool canTrimFFT;
bool isIterMessage = false;
bool isTrimMessage = false;
bool isGuessMessage = false;
lorentzSettings.trimStartFreq = 0;
lorentzSettings.trimStopFreq = plottableData.fftData.freq.Max();
//
UpdateLorentzStartingPoints();
// get trim frequency from user
try
{
lorentzSettings.trimStartFreq = double.Parse(trimStartFreqTextBox.Text);
lorentzSettings.trimStopFreq = double.Parse(trimStopFreqTextBox.Text);
canTrimFFT = true;
}
catch (Exception)
{
canTrimFFT = false;
LorentzTimer.Stop();
StopWaveButton.PerformClick();
if (!isTrimMessage)
{
MessageBox.Show("The trimming frequency inputs are not doubles");
}
isTrimMessage = true;
}
// get algo iterations from user
try
{
lorentzSettings.nIter = int.Parse(IterTextBox.Text);
}
catch (Exception)
{
if (!isIterMessage)
{
MessageBox.Show("The LMA Algorithm iterations input is not an integer, a default value of 100 will be used");
}
isIterMessage = true;
lorentzSettings.nIter = 100;
}
// trim FFT array based on user specifications
if (lorentzSettings.isTrimFft && canTrimFFT)
{
LorentzFftData = pM2WaveForm.TrimFFT(plottableData.fftData, lorentzSettings);
}
else
{
LorentzFftData = plottableData.fftData;
}
// get Lorentz parameters and update lorentz chart based
if (plottableData.fftData != null)
{
fittingSW.Start();
pM2WaveForm.GetLorentzParams(LorentzFftData, lorentzSettings, ref lorentzParams);
fittingSW.Stop();
chartingSW.Start();
UpdateLorenztCharts();
chartingSW.Stop();
}
else
{
MessageBox.Show("Could not perform lorentzian fit. Please ensure you are reading data.");
LorentzTimer.Stop();
LorentzStartButton.Enabled = true;
LorentzStopButton.Enabled = false;
}
fittingSW.Start();
FittingMetrics = pM2WaveForm.GetFittingMetrics(lorentzParams, fftSettings);
UpdateFittingMetricsDisplay();
fittingSW.Stop();
processTimes.fittingTime = fittingSW.Elapsed;
chartingSW.Start();
if (appSettings.isPeakTracking)
{
UpdatePeakTrackerChart();
}
chartingSW.Stop();
peakTrackTime += LorentzTimer.Interval / 1000;
processTimes.freqPlottingTime = chartingSW.Elapsed;
processTimes.fittingTime = fittingSW.Elapsed;
FreqDomainPlottingTimeLabel.Text = "Frequency Domain Plotting (ms) = " + Convert.ToString(processTimes.freqPlottingTime.Milliseconds);
LorentzianFittingTimeLabel.Text = "Lorentzian Fitting (ms) = " + Convert.ToString(processTimes.fittingTime.Seconds * 1e3 + processTimes.fittingTime.Milliseconds);
totalSW.Stop();
}