实时显示波形图

使用微软Chart控件，实时显示两条波形图！

 

 

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.IO;
using System.Windows.Forms.DataVisualization.Charting;

namespace 实时监控
{
    public partial class Form1 : Form
    {

        public Form1()
        {
            InitializeComponent();
            InitChart();
        }

        //初始化
        private void InitChart()
        {
            //设置series的样式
            Series series = chart1.Series[0];
            series.ChartType = SeriesChartType.Spline;
            Series series1 = chart1.Series[1];
            series1.ChartType = SeriesChartType.Spline;

            //设置X轴的样式
            chart1.ChartAreas[0].AxisX.ScaleView.Size = 5;
            chart1.ChartAreas[0].AxisX.LabelStyle.Format = "HH:mm:ss";
            chart1.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
            chart1.ChartAreas[0].AxisX.ScrollBar.Enabled = true;

            //设置Y轴的样式
            chart1.ChartAreas[0].AxisY.Minimum = 0;
            chart1.ChartAreas[0].AxisY.Maximum = 100;
        }

        //计时器   
        private void timer1_Tick(object sender, EventArgs e)
        {
            DateTime time = DateTime.Now;
            //随机数作为数据源
            Random random = new Random();
            Series series = chart1.Series[0];
            series.Points.AddXY(time, random.Next(1, 50));

            Series series1=chart1.Series[1];
            series1.Points.AddXY(time,random.Next(50,100));
            //让轴视图显示在当前进度条位置
            chart1.ChartAreas[0].AxisX.ScaleView.Position = series.Points.Count - 5;
        }

        //按钮 开始
        private void button1_Click(object sender, EventArgs e)
        {
            timer1.Start();
        }

        //按钮 停止
        private void button2_Click(object sender, EventArgs e)
        {
            timer1.Stop();
        }

    }
}