void DrawSincReconstructionPlot(List <DataPoint> previousPoints, out List <double> measuredValues)
{
DrawSamplingPlot(previousPoints, out _, false);
var sampledSignal = SignalConverter.SampleSignal(previousPoints, Frequency, SamplingFrequencyAc, out measuredValues);
var sincPoints = SignalConverter.SincReconstruction(sampledSignal.ToList(), SamplingFrequencyAc, out measuredValues,
ConsideredSamplesNumber).ToList();
foreach (var point in sincPoints)
{
sincSeries.Points.Add(point);
}
upperPlot.Model.Series.Add(sincSeries);
}
void DrawInterpolatedPlot(List <DataPoint> previousPoints, out List <double> measuredValues)
{
DrawSamplingPlot(previousPoints, out _, false);
var sampledSignal = SignalConverter.SampleSignal(previousPoints, Frequency, SamplingFrequencyAc, out measuredValues);
var extrapolatedPoints = SignalConverter.ZeroAndHoldExtrapolation(sampledSignal.ToList(),
SamplingFrequencyAc, out measuredValues, ConsideredSamplesNumber).ToList();
interpolatedSeries.Points.Clear();
foreach (var point in extrapolatedPoints)
{
interpolatedSeries.Points.Add(point);
}
upperPlot.Model.Series.Add(interpolatedSeries);
}
void DrawSamplingPlot(List <DataPoint> previousPoints, out List <double> measuredValues, bool drawOriginalSignal = true)
{
// draw original signal
DrawChart(previousPoints, false, drawOriginalSignal);
var sampledPoints = SignalConverter.SampleSignal(previousPoints, Frequency, SamplingFrequencyAc, out measuredValues);
var scatterSeries = new ScatterSeries
{
MarkerStrokeThickness = .1,
MarkerSize = 2,
MarkerStroke = OxyColors.Red,
MarkerFill = OxyColors.Transparent,
MarkerType = MarkerType.Diamond
};
foreach (var point in sampledPoints)
{
scatterSeries.Points.Add(point);
}
upperPlot.Model.Series.Add(scatterSeries);
}