一、使用ScottPlot.Wpf

官网地址：https://scottplot.net/quickstart/wpf/

1、添加NuGet包：ScottPlot.Wpf

2、XAML映射命名空间：

 xmlns:ScottPlot="clr-namespace:ScottPlot.WPF;assembly=ScottPlot.WPF"

3、简单示例：

 <ScottPlot:WpfPlot x:Name="WpfPlot" Grid.Row="1" HorizontalAlignment="Stretch" VerticalAlignment="Stretch"/>

        private void UpdateTableData()
        {
            try
            {
                WpfPlot.Plot.Clear();
                WpfPlot.Plot.XLabel("Distance(mm)");
                WpfPlot.Plot.YLabel("Height(mm)");

                List<double> PosData = new List<double>() { 1, 2, 3, 4, 5, 6, 7, 8 };
                List<double> HeightData_1 = new List<double>() { 1, 4, 9, 5, 16, 22, 7, 25 };

                double[] PData = PosData.ToArray();
                double[] CH_1 = HeightData_1.ToArray();
                if (PData.Length <= 0) return;

                var spio = WpfPlot.Plot.Add.ScatterLine(PData, CH_1, ScottPlot.Color.FromColor(System.Drawing.Color.DarkRed));
                spio.LegendText = "HeightData01";
                spio.Smooth = true;// 指定曲线为平滑曲线

                 设置图例
                var legend = WpfPlot.Plot.Legend;
                legend.Alignment = Alignment.LowerRight;//设置位置为右下
                legend.FontSize = 13; // 图例字体大小
                WpfPlot.Plot.Axes.AutoScale(false, false);
                WpfPlot.Plot.Title("Data Table", 20);

                WpfPlot.Refresh();
            }
            catch (Exception ex)
            {

            }
        }