public void AddFilter(WindowedSyncFilter newFilter)
{
WorkBook workBook = manager.ActiveWorkBook();
workBook.WindowedSyncFilters.Add(newFilter.Name, newFilter);
LoadFilterData(); // Property changed event handlers will be connected in this function
}
public void PlotData()
{
List <double> summedFilterData = manager.ActiveWorkBook().CombinedFilterImpulseResponse();
if (null == summedFilterData)
{
return;
}
Signal workbookSourceSignal = manager.ActiveWorkBook().SumOfSources();
if (workbookSourceSignal == null)
{
return;
}
SignalPlotPoints = new List <DataPoint>(workbookSourceSignal.Samples.Count);
for (int idx = 0; idx < workbookSourceSignal.Samples.Count; idx++)
{
SignalPlotPoints.Add(new DataPoint(idx, workbookSourceSignal.Samples[idx]));
}
ConvolutionPlotPoints = new List <DataPoint>(summedFilterData.Count);
for (int idx = 0; idx < summedFilterData.Count; idx++)
{
ConvolutionPlotPoints.Add(new DataPoint(idx, summedFilterData[idx]));
}
List <double> convolutionResult = convolver.Convolve(summedFilterData, workbookSourceSignal.Samples, ConvolutionType.INPUTSIDE);
ResultPlotPoints = new List <DataPoint>(convolutionResult.Count);
for (int idx = 0; idx < convolutionResult.Count; idx++)
{
ResultPlotPoints.Add(new DataPoint(idx, convolutionResult[idx]));
}
//IDFT cmplxFFT = new ComplexFastFourierTransform();
IDFT cmplxFFT = new DSPGuideComplexDiscreteFourierTransform();
FrequencyDomain frequencyDomain = cmplxFFT.Transform(convolutionResult, workbookSourceSignal.SamplingHZ);
ResultFrequencyHistogram = new FrequencyHistogramViewModel(frequencyDomain);
NotifyPropertyChanged(nameof(SignalPlotPoints));
NotifyPropertyChanged(nameof(ConvolutionPlotPoints));
NotifyPropertyChanged(nameof(ResultPlotPoints));
NotifyPropertyChanged(nameof(ResultFrequencyHistogram));
}
private void ExportButton_Click(object sender, RoutedEventArgs e)
{
SaveFileDialog saveFileDialog = new SaveFileDialog();
saveFileDialog.Filter = $"{Properties.Resources.FILTER_IMPORT_EXPORT_FILE_EXTENSION} (*{Properties.Resources.FILTER_IMPORT_EXPORT_FILE_EXTENSION})|*{Properties.Resources.FILTER_IMPORT_EXPORT_FILE_EXTENSION}|{Properties.Resources.ALL_FILES} (*.*)|*.*";
if (saveFileDialog.ShowDialog() == true)
{
try
{
using (StreamWriter fileWriter = File.CreateText(saveFileDialog.FileName))
{
fileWriter.WriteLine(Properties.Resources.FILTER_CSV_HEADER);
List <double> summedFilterData = manager.ActiveWorkBook().CombinedFilterImpulseResponse(true);
ComplexFastFourierTransform cmplxFFT = new ComplexFastFourierTransform();
FrequencyDomain frequencyDomain = cmplxFFT.Transform(summedFilterData, manager.ActiveWorkBook().WindowedSyncFilters.Values.First().FilterLength);
var magPhaseList = ComplexFastFourierTransform.ToMagnitudePhaseList(frequencyDomain);
foreach (Tuple <double, double> coefficientMagPhase in magPhaseList)
{
fileWriter.WriteLine($"{coefficientMagPhase.Item1},{coefficientMagPhase.Item2}");
}
}
} catch (Exception ex)
{
Log.Warning(ex, ex.Message);
// TODO warn user
}
}
}
public void AddSignal(Signal signal)
{
workBookManager.ActiveWorkBook().Signals.Add(signal.Name, signal);
LoadSignalsFromActiveWorkBook();
}