WPF利用ScottPlot实现动态绘制图像

ScatterPlot dynSinPlot;
int dynClick = 0;

private void btnDynSin_Click(object sender, RoutedEventArgs e)
{
    var xs = Enumerable.Range(0, 100).Select(x => x / 10.0).ToArray();
    double shift = dynClick / 10.0;
    var ys = xs.Select(x => Math.Sin(x+shift)).ToArray();
    dynClick += 1;

    plt.Plot.Remove(dynSinPlot);
    dynSinPlot = plt.Plot.AddScatter(xs, ys, label: "sin");
    plt.Plot.Legend();
    plt.Refresh();
}

ScatterPlot dynCosPlot;

private void dynCos()
{
    double t = DateTime.Now.Ticks/1000000.0;
    Console.WriteLine(t);
    var xs = Enumerable.Range(0, 100).Select(x => x / 10.0).ToArray();
    var ys = xs.Select(x => Math.Cos(x + t)).ToArray();

    Dispatcher.Invoke(() =>
    {
        plt.Plot.Remove(dynCosPlot);

        dynCosPlot = plt.Plot.AddScatter(xs, ys, label: "cos");
        plt.Plot.Legend();
        plt.Refresh();
    });
}

private void TaskDynCosLoop(CancellationToken token)
{
    while (!token.IsCancellationRequested)
    {
        dynCos();
        Task.Delay(10);
    }
}

bool drawDynCos = false;
CancellationTokenSource dynCts;

private void btnDynCos_Click(object sender, RoutedEventArgs e)
{
    drawDynCos = ! drawDynCos;
    if (drawDynCos)
    {
        dynCts = new CancellationTokenSource();
        Task.Factory.StartNew(
            ()=> TaskDynCosLoop(dynCts.Token));
    }
    else
    {
        dynCts.Cancel();
    }
}