private void OnDataAvailable(object sender, NAudio.Wave.WaveInEventArgs args)
{
int bytesPerSample = wvin.WaveFormat.BitsPerSample / 8;
int samplesRecorded = args.BytesRecorded / bytesPerSample;
Int16[] lastBuffer = new Int16[samplesRecorded];
for (int i = 0; i < samplesRecorded; i++)
{
lastBuffer[i] = BitConverter.ToInt16(args.Buffer, i * bytesPerSample);
}
int lastBufferAmplitude = lastBuffer.Max() - lastBuffer.Min();
double amplitude = (double)lastBufferAmplitude / Math.Pow(2, wvin.WaveFormat.BitsPerSample);
if (amplitude > peakAmplitudeSeen)
{
peakAmplitudeSeen = amplitude;
}
amplitude = amplitude / peakAmplitudeSeen * 100;
buffersRead += 1;
// TODO: make this sane
ScottPlot.PlottableAxLine axLine = (ScottPlot.PlottableAxLine)scottPlotUC1.plt.GetPlottables()[1];
axLine.position = (buffersRead % amplitudes.Length) * 20.0 / 1000.0;
Console.WriteLine(string.Format("Buffer {0:000} amplitude: {1:00.00}%", buffersRead, amplitude));
PlotAddPoint(amplitude);
}
private void GenerateNewData()
{
Random rand = new Random();
int pointCount = 100;
ScottPlot.OHLC[] ohlcs = ScottPlot.DataGen.RandomStockPrices(rand, pointCount);
double[] volumes = ScottPlot.DataGen.Random(rand, pointCount, 500, 1000);
double[] timestamps = new double[ohlcs.Length];
for (int i = 0; i < timestamps.Length; i++)
{
timestamps[i] = ohlcs[i].time;
}
// stock price chart
formsPlot1.plt.Clear();
formsPlot1.plt.YLabel("Share Price");
formsPlot1.plt.Title("ScottPlot Candlestick Demo");
plottedLine = formsPlot1.plt.PlotVLine(timestamps[0], color: Color.Gray, lineStyle: ScottPlot.LineStyle.Dash);
plottedLine.visible = false;
if (rbCandle.Checked)
{
plottedOHLCs = formsPlot1.plt.PlotCandlestick(ohlcs);
}
else
{
plottedOHLCs = formsPlot1.plt.PlotOHLC(ohlcs);
}
plottedText = formsPlot1.plt.PlotText("", timestamps[0], ohlcs[0].low,
bold: true, fontSize: 10, color: Color.Black,
frame: true, frameColor: Color.DarkGray);
formsPlot1.plt.Ticks(dateTimeX: true);
formsPlot1.plt.AxisAuto();
// volume chart
formsPlot2.plt.Clear();
formsPlot2.plt.YLabel("Volume");
formsPlot2.plt.PlotBar(timestamps, volumes, barWidth: .5);
formsPlot2.plt.AxisAuto(.01, .1);
formsPlot2.plt.Axis(null, null, 0, null);
formsPlot2.plt.Ticks(dateTimeX: true);
formsPlot1.plt.MatchLayout(formsPlot2.plt, horizontal: true, vertical: false);
formsPlot1.Render();
formsPlot2.Render();
}
