1 using System;
  2 using System.Collections.Generic;
  3 using System.ComponentModel;
  4 using System.Data;
  5 using System.Drawing;
  6 using System.Linq;
  7 using System.Text;
  8 using System.Windows.Forms;
  9 using System.Windows.Forms.DataVisualization.Charting;
 10 
 11 namespace WindowsFormsApplication1
 12 {
 13     public partial class RealChart : Form
 14     {
 15         private Queue<double> dataQueue = new Queue<double>(100);
 16 
 17         private int curValue = 0;
 18 
 19         private int num = 5;//每次删除增加几个点
 20 
 21         public RealChart()
 22         {
 23             InitializeComponent();
 24         }
 25 
 26         /// <summary>
 27         /// 初始化事件
 28         /// </summary>
 29         /// <param name="sender"></param>
 30         /// <param name="e"></param>
 31         private void btnInit_Click(object sender, EventArgs e)
 32         {
 33             InitChart();
 34         }
 35 
 36         /// <summary>
 37         /// 开始事件
 38         /// </summary>
 39         /// <param name="sender"></param>
 40         /// <param name="e"></param>
 41         private void btnStart_Click(object sender, EventArgs e)
 42         {
 43             this.timer1.Start();
 44         } 
 45         
 46         /// <summary>
 47         /// 停止事件
 48         /// </summary>
 49         /// <param name="sender"></param>
 50         /// <param name="e"></param>
 51         private void btnStop_Click(object sender, EventArgs e)
 52         {
 53             this.timer1.Stop();
 54         }
 55 
 56         /// <summary>
 57         /// 定时器事件
 58         /// </summary>
 59         /// <param name="sender"></param>
 60         /// <param name="e"></param>
 61         private void timer1_Tick(object sender, EventArgs e)
 62         {
 63             UpdateQueueValue();
 64             this.chart1.Series[0].Points.Clear();
 65             for(int i=0;i<dataQueue.Count;i++){
 66                 this.chart1.Series[0].Points.AddXY((i+1), dataQueue.ElementAt(i));
 67             }
 68         } 
 69         
 70         /// <summary>
 71         /// 初始化图表
 72         /// </summary>
 73         private void InitChart() {
 74             //定义图表区域
 75             this.chart1.ChartAreas.Clear();
 76             ChartArea chartArea1 = new ChartArea("C1");
 77             this.chart1.ChartAreas.Add(chartArea1);
 78             //定义存储和显示点的容器
 79             this.chart1.Series.Clear();
 80             Series series1 = new Series("S1");
 81             series1.ChartArea = "C1";
 82             this.chart1.Series.Add(series1);
 83             //设置图表显示样式
 84             this.chart1.ChartAreas[0].AxisY.Minimum = 0;
 85             this.chart1.ChartAreas[0].AxisY.Maximum =100;
 86             this.chart1.ChartAreas[0].AxisX.Interval = 5;
 87             this.chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Silver;
 88             this.chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Silver;
 89             //设置标题
 90             this.chart1.Titles.Clear();
 91             this.chart1.Titles.Add("S01");
 92             this.chart1.Titles[0].Text = "XXX显示";
 93             this.chart1.Titles[0].ForeColor = Color.RoyalBlue;
 94             this.chart1.Titles[0].Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);
 95             //设置图表显示样式
 96             this.chart1.Series[0].Color = Color.Red;
 97             if (rb1.Checked)
 98             {
 99                 this.chart1.Titles[0].Text =string.Format( "XXX {0} 显示",rb1.Text);
100                 this.chart1.Series[0].ChartType = SeriesChartType.Line;
101             }
102             if (rb2.Checked) {
103                 this.chart1.Titles[0].Text = string.Format("XXX {0} 显示", rb2.Text);
104                 this.chart1.Series[0].ChartType = SeriesChartType.Spline;
105             }
106             this.chart1.Series[0].Points.Clear();
107         }
108         
109         //更新队列中的值
110         private void UpdateQueueValue() {
111             
112             if (dataQueue.Count > 100) {
113                 //先出列
114                 for (int i = 0; i < num; i++)
115                 {
116                     dataQueue.Dequeue();
117                 }
118             }
119             if (rb1.Checked)
120             {
121                 Random r = new Random();
122                 for (int i = 0; i < num; i++)
123                 {
124                     dataQueue.Enqueue(r.Next(0, 100));
125                 }
126             }
127             if (rb2.Checked) {
128                 for (int i = 0; i < num; i++)
129                 {
130                     //对curValue只取[0,360]之间的值
131                     curValue = curValue % 360;
132                     //对得到的正玄值，放大50倍，并上移50
133                     dataQueue.Enqueue((50*Math.Sin(curValue*Math.PI / 180))+50);
134                     curValue=curValue+10;
135                 }
136             }
137         }
138     }
139 }