public SpectrumAnalyzerWin()
{
InitializeComponent();
channels = 0;
spectrumAnalyzer = null;
FormClosing += SpectrumAnalyzerWin_FormClosing;
CanClose = false;
timer = new Timer();
}
public void initSpectrumAnalyzer(SpectrumAnalyzer _spectrumAnalyzer, int _channels, int _FIFOdepth)
{
inputs = new FIFO[_channels];
for (int i = 0; i < _channels; i++)
{
inputs[i] = new FIFO(_FIFOdepth);
}
lines = new SpectrumAnalyzerLine[_channels];
inputsActive = new Boolean[_channels];
inputData = new double[_channels][];
for (int i = 0; i < _channels; i++)
{
lines[i] = new SpectrumAnalyzerLine(spectrumAnalyzerScreen);
switch (i % 4)
{
case 0: lines[i].color = Color.Red; break;
case 1: lines[1].color = Color.Green; break;
case 2: lines[2].color = Color.Cyan; break;
case 3: lines[3].color = Color.Magenta; break;
}
}
FIFOdepth = _FIFOdepth;
spectrumAnalyzer = _spectrumAnalyzer;
timer.Interval = 100; // ms
timer.Tick += Timer_Tick;
_blockSize = 4096;
_windowType = FFTProcessor.WindowType.Hann;
for (int i = 0; i < _channels; i++)
{
lines[i].acf = FFTProcessor.windowAmplitudeCorrectionFactorsdB[(int)_windowType];
}
fftProcessor = new FFTProcessor(_blockSize, spectrumAnalyzer.owner.sampleRate, _windowType);
fftBlockSizes = new List <int>();
for (int i = 64; i <= 8192; i *= 2)
{
SpectrumAnalyzerBlockSize.Items.Add(String.Format("{0} --> {1:f1}ms",
i, 1000.0 * i / spectrumAnalyzer.owner.sampleRate));
fftBlockSizes.Add(i);
}
SpectrumAnalyzerBlockSize.SelectedIndex = fftBlockSizes.IndexOf(_blockSize);
SpectrumAnalyzerBlockSize.SelectedIndexChanged += SpectrumAnalyzerBlockSize_SelectedIndexChanged;
string[] windows = Enum.GetNames(typeof(FFTProcessor.WindowType));
fftWindows = new List <FFTProcessor.WindowType>();
for (int i = 0; i < windows.Length; i++)
{
fftWindows.Add((FFTProcessor.WindowType)i);
SpectrumAnalyzerWindow.Items.Add(windows[i]);
}
SpectrumAnalyzerWindow.SelectedIndex = fftWindows.IndexOf(_windowType);
SpectrumAnalyzerWindow.SelectedIndexChanged += SpectrumAnalyzerWindow_SelectedIndexChanged;
spectrumAnalyzerScreen.initSpectrumAnalyzerScreen(this, _channels, lines);
if (spectrumAnalyzerScreen.gridF.logScale)
{
SpectrumAnalyzerFLog.Checked = true;
}
SpectrumAnalyzerFLog.Click += SpectrumAnalyzerFLog_Click;
SpectrumAnalyzerFMin.Value = Convert.ToDecimal(spectrumAnalyzerScreen.gridF.min);
SpectrumAnalyzerFMax.Value = Convert.ToDecimal(spectrumAnalyzerScreen.gridF.max);
SpectrumAnalyzerYMin.Value = Convert.ToDecimal(spectrumAnalyzerScreen.gridY.min);
SpectrumAnalyzerYMax.Value = Convert.ToDecimal(spectrumAnalyzerScreen.gridY.max);
SpectrumAnalyzerFMin.ValueChanged += SpectrumAnalyzerFMin_ValueChanged;
SpectrumAnalyzerFMax.ValueChanged += SpectrumAnalyzerFMax_ValueChanged;
SpectrumAnalyzerYMin.ValueChanged += SpectrumAnalyzerYMin_ValueChanged;
SpectrumAnalyzerYMax.ValueChanged += SpectrumAnalyzerYMax_ValueChanged;
SpectrumAnalyzerAutoScale.Click += SpectrumAnalyzerAutoScale_Click;
SpectrumAnalyzerChannelOnA.Checked = lines[0].show;
SpectrumAnalyzerChannelOnB.Checked = lines[1].show;
SpectrumAnalyzerChannelOnC.Checked = lines[2].show;
SpectrumAnalyzerChannelOnD.Checked = lines[3].show;
SpectrumAnalyzerChannelOnA.Click += SpectrumAnalyzerChannelOnA_Click;
SpectrumAnalyzerChannelOnB.Click += SpectrumAnalyzerChannelOnB_Click;
SpectrumAnalyzerChannelOnC.Click += SpectrumAnalyzerChannelOnC_Click;
SpectrumAnalyzerChannelOnD.Click += SpectrumAnalyzerChannelOnD_Click;
SpectrumAnalyzerPkHldA.Checked = lines[0].showMax;
SpectrumAnalyzerPkHldB.Checked = lines[1].showMax;
SpectrumAnalyzerPkHldC.Checked = lines[2].showMax;
SpectrumAnalyzerPkHldD.Checked = lines[3].showMax;
SpectrumAnalyzerPkHldA.Click += SpectrumAnalyzerPkHldA_Click;
SpectrumAnalyzerPkHldB.Click += SpectrumAnalyzerPkHldB_Click;
SpectrumAnalyzerPkHldC.Click += SpectrumAnalyzerPkHldC_Click;
SpectrumAnalyzerPkHldD.Click += SpectrumAnalyzerPkHldD_Click;
SpectrumAnalyzerAvgA.Checked = lines[0].showAvg;
SpectrumAnalyzerAvgB.Checked = lines[1].showAvg;
SpectrumAnalyzerAvgC.Checked = lines[2].showAvg;
SpectrumAnalyzerAvgD.Checked = lines[3].showAvg;
SpectrumAnalyzerAvgA.Click += SpectrumAnalyzerAvgA_Click;
SpectrumAnalyzerAvgB.Click += SpectrumAnalyzerAvgB_Click;
SpectrumAnalyzerAvgC.Click += SpectrumAnalyzerAvgC_Click;
SpectrumAnalyzerAvgD.Click += SpectrumAnalyzerAvgD_Click;
SpectrumAnalyzerSave.Click += SpectrumAnalyzerSave_Click;
run = true;
SpectrumAnalyzerRun.Checked = run;
SpectrumAnalyzerRun.Click += SpectrumAnalyzerRun_Click;
showGrid = true;
SpectrumAnalyzerGrid.Checked = showGrid;
spectrumAnalyzerScreen.drawGrid = showGrid;
SpectrumAnalyzerGrid.CheckedChanged += SpectrumAnalyzerGrid_CheckedChanged;
channels = _channels; // Triggers start
timer.Enabled = true;
}
