private static Signal RescaleSignal(Signal decomposition, Signal signal, DecompositionLevel level)
{
var rescaled = WaveMath.InterpolateCubic(decomposition, (uint)Math.Pow(2, level.Index + 1));
if (rescaled.SamplesCount < signal.SamplesCount)
{
var extensionSize = signal.SamplesCount - rescaled.SamplesCount;
int right;
var left = right = extensionSize / 2;
if (left + right != extensionSize)
{
left++;
}
SignalExtension.Extend(ref rescaled, SignalExtension.ExtensionMode.SmoothPadding0, left, right);
}
else
{
rescaled.Samples = SignalExtension.Deextend(rescaled.Samples, signal.SamplesCount);
}
rescaled.CustomPlot = null;
rescaled.Finish = signal.Finish;
rescaled.SamplingRate = signal.SamplingRate;
rescaled.SamplingInterval = signal.SamplingInterval;
return(rescaled);
}
/// <summary>
/// Executes the block
/// </summary>
public override void Execute()
{
var inputNode1 = InputNodes[0].ConnectingNode as BlockOutputNode;
var inputNode2 = InputNodes[1].ConnectingNode as BlockOutputNode;
if (inputNode1 == null || inputNode1.Object == null || inputNode2 == null || inputNode2.Object == null)
{
return;
}
OutputNodes[0].Object.Clear();
var approximations = inputNode1.Object;
var details = inputNode2.Object;
var tempLevels = new List <DecompositionLevel>();
var outputs = new List <Signal>();
var currentName = "";
for (var i = 0; i < approximations.Count; i++)
{
var name = approximations[i].Name != null ? approximations[i].Name.Split(new[] { " - " }, StringSplitOptions.RemoveEmptyEntries)[0] : Resources.Signal;
if (name != currentName && currentName != "")
{
outputs.Add(new Signal(DWT.ExecuteIDWT(tempLevels, _motherWavelet, Level))
{
Name = name
});
tempLevels = new List <DecompositionLevel>();
}
currentName = name;
if (approximations[i].Samples != null && i < details.Count && details[i].Samples != null)
{
var level = new DecompositionLevel
{
Approximation = approximations[i].Samples,
Details = details[i].Samples,
Index = i
};
tempLevels.Add(level);
}
if (i != approximations.Count - 1)
{
continue;
}
outputs.Add(new Signal(DWT.ExecuteIDWT(tempLevels, _motherWavelet, Level))
{
Name = name
});
}
OutputNodes[0].Object = outputs;
if (Cascade && OutputNodes[0].ConnectingNode != null)
{
OutputNodes[0].ConnectingNode.Root.Execute();
}
}
