/// <summary>
/// Draw waveforms on ZedGraph depending on which one is selected.
/// </summary>
private void DrawWaveforms()
{
if (csvDataProcessed)
{
eegGraph.PlotClear(1);
waveformColors.Clear();
BasicDSP.Waveform waveform = emotionizer.Sampler.GetEEGWaveform(currentElectrode);
EEGAnalyzer analyzer = new EEGAnalyzer(waveform);
bool normalize = NormalizeEEGWaveformsCheckBox.IsChecked == true ? true : false;
if (OriginalWaveCheckBox.IsChecked == true)
{
if (normalize)
{
waveform = EEGUtils.Normalize(waveform);
}
waveformColors.Add(System.Drawing.Color.Blue);
eegGraph.PlotWaveform(1, ref waveform, "Original Wave");
}
if (AlphaWaveCheckBox.IsChecked == true)
{
waveformColors.Add(System.Drawing.Color.Red);
BasicDSP.Waveform waveformAlpha = analyzer.FilterBand(EEGBand.ALPHA, normalize);
eegGraph.PlotWaveform(1, ref waveformAlpha, "Alpha");
}
if (BetaWaveCheckBox.IsChecked == true)
{
waveformColors.Add(System.Drawing.Color.Green);
BasicDSP.Waveform waveformBeta = analyzer.FilterBand(EEGBand.BETA, normalize);
eegGraph.PlotWaveform(1, ref waveformBeta, "Beta");
}
if (ThetaWaveCheckBox.IsChecked == true)
{
waveformColors.Add(System.Drawing.Color.DarkMagenta);
BasicDSP.Waveform waveformTheta = analyzer.FilterBand(EEGBand.THETA, normalize);
eegGraph.PlotWaveform(1, ref waveformTheta, "Theta");
}
if (DeltaWaveCheckBox.IsChecked == true)
{
waveformColors.Add(System.Drawing.Color.Orange);
BasicDSP.Waveform waveformDelta = analyzer.FilterBand(EEGBand.DELTA, normalize);
eegGraph.PlotWaveform(1, ref waveformDelta, "Delta");
}
EEGZedGraphRefresh();
}
}
/// <summary>
/// Draw spectrum on ZedGraph
/// </summary>
private void DrawSpectrum()
{
if (csvDataProcessed)
{
spectrumGraph.PlotClear(1);
BasicDSP.Waveform waveform = emotionizer.Sampler.GetEEGWaveform(currentSpectrumElectrode);
EEGAnalyzer analyzer = new EEGAnalyzer(waveform);
int spectrumIndex = Convert.ToInt32(Convert.ToDouble(analyzer.Waveform.Count) * currentVideoPositionInPercent);
BasicDSP.Spectrum spectrum = analyzer.GetSpectrum(spectrumIndex, currentSpectrumSize);
spectrumGraph.PlotDbSpectrum(1, ref spectrum, "");
SpectrumZedGraphRefresh();
}
}
