private void Form1_Load(object sender, EventArgs e)
{
data = ScottPlot.DataGen.RandomWalk(rand, 10_000_000);
signal = scottPlotUC1.plt.PlotSignalConst(data);
scottPlotUC1.plt.Benchmark();
scottPlotUC1.Render();
}
public FormIncomingData()
{
InitializeComponent();
int dataPoints = 100 * 60 * 60; // 1hr of 100Hz data
dataValues = new double[dataPoints];
signal = formsPlot1.plt.PlotSignal(dataValues, 100);
formsPlot1.plt.Axis(-2, 35, -100, 300);
}
private void chart_pid_Load(object sender, EventArgs e)
{
this.plt_setpoint = this.chart_pid.plt.PlotSignal(this.plt_data_setpoint, label: "Setpoint");
this.plt_feedback = this.chart_pid.plt.PlotSignal(this.plt_data_feedback, label: "Feedback");
this.plt_setpoint.maxRenderIndex = 0;
this.plt_feedback.maxRenderIndex = 0;
this.chart_pid.plt.XLabel("Step (times)");
this.chart_pid.plt.YLabel("Process Value");
this.chart_pid.plt.Legend(location: ScottPlot.legendLocation.lowerLeft);
}
private void timer1_Tick(object sender, EventArgs e)
{
if (lastBuffer is null)
{
return;
}
double[] window = FftSharp.Window.Hanning(lastBuffer.Length);
double[] windowed = FftSharp.Window.Apply(window, lastBuffer);
double[] zeroPadded = FftSharp.Pad.ZeroPad(windowed);
double[] fftPower = cbDecibel.Checked ?
FftSharp.Transform.FFTpower(zeroPadded) :
FftSharp.Transform.FFTmagnitude(zeroPadded);
double[] fftFreq = FftSharp.Transform.FFTfreq(SAMPLE_RATE, fftPower.Length);
// determine peak frequency
double peakFreq = 0;
double peakPower = 0;
for (int i = 0; i < fftPower.Length; i++)
{
if (fftPower[i] > peakPower)
{
peakPower = fftPower[i];
peakFreq = fftFreq[i];
}
}
lblPeak.Text = $"Peak Frequency: {peakFreq:N0} Hz";
formsPlot1.plt.XLabel("Frequency Hz");
// make the plot for the first time, otherwise update the existing plot
if (formsPlot1.plt.GetPlottables().Count == 0)
{
signalPlot = formsPlot1.plt.PlotSignal(fftPower, 2.0 * fftPower.Length / SAMPLE_RATE);
peakLine = formsPlot1.plt.PlotVLine(peakFreq, ColorTranslator.FromHtml("#66FF0000"), 2);
}
else
{
signalPlot.ys = fftPower;
peakLine.position = peakFreq;
peakLine.visible = cbPeak.Checked;
}
if (cbAutoAxis.Checked)
{
formsPlot1.plt.AxisAuto(horizontalMargin: 0);
}
formsPlot1.Render();
}
// ---------------------------------
private void FormMain_Load(object sender, EventArgs e)
{
// --------------------------------------------
// init chart_signal style
// --------------------------------------------
double[] sin_swppe = ScottPlot.DataGen.SinSweep(10000, 10);
this.plt_signal = this.chart_signal.plt.PlotSignal(sin_swppe, 1000);
this.chart_signal.Render();
// -------------------------------------------
sin_swppe = ScottPlot.DataGen.SinSweep(10000, 20);
this.plt_fft = this.chart_fft.plt.PlotSignal(sin_swppe, 1000);
this.chart_fft.Render();
// --------------------------------------------
}
public FormGui()
{
InitializeComponent();
Random rand = new Random(0);
sig = formsPlot1.plt.PlotSignal(
ys: ScottPlot.DataGen.RandomWalk(rand, 10_000_000),
label: "Signal (10M)");
sigConst = formsPlot1.plt.PlotSignalConst(
ys: ScottPlot.DataGen.RandomWalk(rand, 10_000_000),
label: "SignalConst (10M)");
scat = formsPlot1.plt.PlotScatter(
xs: ScottPlot.DataGen.Consecutive(1_000, spacing: 10_000),
ys: ScottPlot.DataGen.RandomWalk(rand, 1_000, 20),
label: "Scatter (1k)");;
formsPlot1.plt.Legend();
formsPlot1.plt.Axis();
formsPlot1.Render();
}
