WPF_基于ScottPlot的实时曲线绘制

作者：繁依Fanyi0 | 2024-02-16 23:46:26

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scottplot

1 安装ScottPlot

2 测试代码

2.1 MainWindow.cs


using System;
using System.Diagnostics;
using System.Threading;
using System.Windows;
 
namespace ScottplotTest
{
    /// <summary>
    /// MainWindow.xaml 的交互逻辑
    /// </summary>
    public partial class MainWindow : Window
    {
 
        double[] myData1 = new double[200];
        double[] myData2 = new double[200];
        ScottPlot.Plottable.SignalPlot signalPlot1;
        ScottPlot.Plottable.SignalPlot signalPlot2;
        bool initflag = false;
        
        public MainWindow()
        {
            InitializeComponent();
 
            this.Closing += CloseWindow;
 
            signalPlot1 = this.WpfPlot1.Plot.AddSignal(myData1, 0.1, System.Drawing.Color.Black, label: "曲线1");
            signalPlot2 = this.WpfPlot1.Plot.AddSignal(myData2, 0.1, System.Drawing.Color.Magenta, label: "曲线2");
 
 
            //WpfPlot1.Plot.XAxis.Label("Time (milliseconds)");
            WpfPlot1.Plot.YAxis.Label("Celsius temperature (°C)");
            WpfPlot1.Plot.XAxis2.Label("Title");
 
            // One Axis Only
            WpfPlot1.Plot.XAxis.Ticks(false);
            WpfPlot1.Plot.XAxis.Line(false);
            WpfPlot1.Plot.YAxis2.Line(false);
            WpfPlot1.Plot.XAxis2.Line(false);
            
 
            Thread SPdataProcessing = new Thread(RefreshOPMUI);
 
            //signalPlot1.Label = "a";
            // signalPlot2.Label = "b";
 
            WpfPlot1.Plot.Legend();
           
            WpfPlot1.Refresh();
   
            signalPlot1.IsVisible = true;
            signalPlot2.IsVisible = true;
 
            initflag = true;
 
            signalPlot1.OffsetX = 0;
            signalPlot2.OffsetX = 0;
 
            
            SPdataProcessing.Start();
 
            Array.Copy(myData1, 1, myData1, 0, myData1.Length - 1);
            Array.Copy(myData2, 1, myData2, 0, myData2.Length - 1);
 
            myData1[myData1.Length - 1] = 50;
            myData2[myData2.Length - 1] = 20;
            WpfPlot1.Refresh();
 
 
 
        }
 
        public void RefreshOPMUI()
        {
            while (true)
            {
                Random rd = new Random();
 
                int v1 = rd.Next(0, 200);
                int v2 = rd.Next(0, 1000);
 
                // double[] values = ScottPlot.DataGen.RandomWalk(rand, 2);
                Array.Copy(myData1, 1, myData1, 0, myData1.Length - 1);
                Array.Copy(myData2, 1, myData2, 0, myData2.Length - 1);
 
                myData1[myData1.Length - 1] = v1;
                myData2[myData2.Length - 1] = v2;
                Dispatcher.Invoke(new Action(delegate
                {
                    WpfPlot1.Refresh();
                    WpfPlot1.Plot.AxisAutoY();
                    // WpfPlot1.Plot.AxisAutoX();
                }));
 
                
                Thread.Sleep(50);
            }
        }
 
        // 关闭窗口
        private void CloseWindow(object sender, System.ComponentModel.CancelEventArgs e)
        {
            Process.GetCurrentProcess().Kill();
            this.Close();
        }
 
 
        private void CheckBox_Checked(object sender, RoutedEventArgs e)
        {
            if (initflag == false) {
                return;
            }
            if (checkBox.IsChecked == true) {
                signalPlot1.IsVisible = true;
            }
            else{
                signalPlot1.IsVisible = false;
            }
        }
 
        private void CheckBox1_Checked(object sender, RoutedEventArgs e)
        {
            if (initflag == false)
            {
                return;
            }
            if (checkBox1.IsChecked == true)
            {
                signalPlot2.IsVisible = true;
            }
            else
            {
                signalPlot2.IsVisible = false;
            }
        }
    }
}

2.2 MainWindow.xaml


<Window x:Class="ScottplotTest.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
        xmlns:local="clr-namespace:ScottplotTest"
        mc:Ignorable="d"
        Title="MainWindow" Height="450" Width="800">
    <Grid>
        <WpfPlot Name="WpfPlot1" Margin="0,0,107,59" />
        <CheckBox x:Name="checkBox" Content="曲线1" IsChecked="True"  HorizontalAlignment="Left" Margin="695,275,0,0" VerticalAlignment="Top" Checked="CheckBox_Checked" Unchecked="CheckBox_Checked"/>
        <CheckBox x:Name="checkBox1" Content="曲线2" IsChecked="True" HorizontalAlignment="Left" Margin="695,300,0,0" VerticalAlignment="Top" Checked="CheckBox1_Checked" Unchecked="CheckBox1_Checked"/>
    </Grid>
</Window>