C#如何实现chart控件动态曲线绘制

这篇文章将为大家详细讲解有关C#如何实现chart控件动态曲线绘制，小编觉得挺实用的，因此分享给大家做个参考，希望大家阅读完这篇文章后可以有所收获。

具体内容如下

思想

实验室要做一个动态曲线绘制，网上方法很多，但是缺乏完整代码和效果图的整合，往往总是缺少其一，因此整理如下，方便大家编程，节约时间。
思路：新建一个队列，利用timer控件，动态的往队列中加入数据，每次触发事件，就相当于将队列中的值全部重新画一遍。

我的目的是做四个点的动态监测，所以代码重复了四次，其实应该用4个线程来做，思路就显得较为清晰了，这也是可以改进的地方。

public partial class 界面_Xtratabcontrol版本_ : Form     {         private Queue<double> dataQueue1 = new Queue<double>(100); //30个就清空一次         private Queue<double> dataQueue2 = new Queue<double>(100); //30个就清空一次         private Queue<double> dataQueue3 = new Queue<double>(100); //30个就清空一次         private Queue<double> dataQueue4 = new Queue<double>(100); //30个就清空一次         private int stress1 = 0;//设置一个压力值全局变量         private int stress2 = 0;//设置一个压力值全局变量         private int stress3 = 0;//设置一个压力值全局变量         private int stress4 = 0;//设置一个压力值全局变量         string monthNow = "";         string monthNext = "";         string currentTime = "";         bool isRefresh = false;         public 界面_Xtratabcontrol版本_()         {             InitializeComponent();             dataGridView1.AutoGenerateColumns = false; //设置不自动显示数据库中未绑定的列             //设置隔行背景色             this.dataGridView1.RowsDefaultCellStyle.BackColor = Color.Bisque;             this.dataGridView1.AlternatingRowsDefaultCellStyle.BackColor = Color.Beige;         }         private void btnInit_Click(object sender, EventArgs e)         {             InitChart1();             InitChart2();             InitChart3();             InitChart4();         }         private void btnStart_Click(object sender, EventArgs e)         {             this.timer1.Start();         }         private void btnStop_Click(object sender, EventArgs e)         {             this.timer1.Stop();         }         private void timer1_Tick(object sender, EventArgs e)         {             try             {                 UpdateDate(); //根据当前时间取下一个数据，同时给month赋值                 dataQueue1.Enqueue(stress1); //就是这，不断往里面加数据。                 dataQueue2.Enqueue(stress2);                 dataQueue3.Enqueue(stress3);                 dataQueue4.Enqueue(stress4);                 if (isRefresh)                 {                     //刷新界面                     isRefresh = false;                     InitChart1();                     InitChart2();                     InitChart3();                     InitChart4();                     dataQueue1.Enqueue(stress1);                     dataQueue2.Enqueue(stress2);                     dataQueue3.Enqueue(stress3);                     dataQueue4.Enqueue(stress4);                 }                 this.chart1.Series[0].Points.Clear();                 this.chart2.Series[0].Points.Clear();                 this.chart3.Series[0].Points.Clear();                 this.chart4.Series[0].Points.Clear();                 for (int i = 0; i < dataQueue1.Count; i++)                 {                     this.chart1.Series[0].Points.AddXY((i + 1), dataQueue1.ElementAt(i)); 相当于每次都是重新画一遍                 }                 for (int i = 0; i < dataQueue2.Count; i++)                 {                     this.chart2.Series[0].Points.AddXY((i + 1), dataQueue2.ElementAt(i)); 相当于每次都是重新画一遍                 }                 for (int i = 0; i < dataQueue3.Count; i++)                 {                     this.chart3.Series[0].Points.AddXY((i + 1), dataQueue3.ElementAt(i)); 相当于每次都是重新画一遍                 }                 for (int i = 0; i < dataQueue4.Count; i++)                 {                     this.chart4.Series[0].Points.AddXY((i + 1), dataQueue4.ElementAt(i)); 相当于每次都是重新画一遍                 }             }             catch (Exception ex)             {                 MessageBox.Show(ex.Message);             }         }         private void InitChart1()         {             try             {                 //定义图表区域                 this.chart1.ChartAreas.Clear();                 ChartArea chartArea1 = new ChartArea("C1");                 this.chart1.ChartAreas.Add(chartArea1);                 //this.chart1.Dock = DockStyle.Fill;                 //定义存储和显示点的容器                 this.chart1.Series.Clear();                 Series series1 = new Series("S1");                 series1.ChartArea = "C1";                 this.chart1.Series.Add(series1);                 //设置图表显示样式                 this.chart1.ChartAreas[0].AxisY.Minimum = 30000;                 this.chart1.ChartAreas[0].AxisY.Maximum = 50000;                 this.chart1.ChartAreas[0].AxisX.Minimum = 1;                 this.chart1.ChartAreas[0].AxisX.Maximum = 31;                 this.chart1.ChartAreas[0].AxisX.Interval = 1;                 this.chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Silver;                 this.chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Silver;                 //设置标题                 this.chart1.Titles.Clear();                 this.chart1.Titles.Add("S01");                 this.chart1.Titles[0].Text = "1号监测点";                 this.chart1.Titles[0].ForeColor = Color.RoyalBlue;                 this.chart1.Titles[0].Font = new System.Drawing.Font("Microsoft Sans Serif", 12F);                 //设置图表显示样式                 this.chart1.Series[0].Color = Color.Red;                 if (rb1.Checked)                 {                     //this.chart1.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart1.Titles[0].Text = string.Format("1号监测点");                     this.chart1.Series[0].ChartType = SeriesChartType.Line;                 }                 if (rb2.Checked)                 {                     this.chart1.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart1.Series[0].ChartType = SeriesChartType.Spline;                 }                 this.chart1.Series[0].Points.Clear();                 //DBEngine.ConnectDB("orcl", "dt", "6312");                 dataQueue1.Clear();//清空队列中所有数据             }             catch (Exception ex)             {             }         }         private void InitChart2()         {             try             {                 //定义图表区域                 this.chart2.ChartAreas.Clear();                 ChartArea chartArea2 = new ChartArea("C2");                 this.chart2.ChartAreas.Add(chartArea2);                 //this.chart1.Dock = DockStyle.Fill;                 //定义存储和显示点的容器                 this.chart2.Series.Clear();                 Series series2 = new Series("S2");                 series2.ChartArea = "C2";                 this.chart2.Series.Add(series2);                 //设置图表显示样式                 this.chart2.ChartAreas[0].AxisY.Minimum = 30000;                 this.chart2.ChartAreas[0].AxisY.Maximum = 50000;                 this.chart2.ChartAreas[0].AxisX.Minimum = 1;                 this.chart2.ChartAreas[0].AxisX.Maximum = 31;                 this.chart2.ChartAreas[0].AxisX.Interval = 1;                 this.chart2.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Silver;                 this.chart2.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Silver;                 //设置标题                 this.chart2.Titles.Clear();                 this.chart2.Titles.Add("S02");                 this.chart2.Titles[0].Text = "动态折线图显示";                 this.chart2.Titles[0].ForeColor = Color.RoyalBlue;                 this.chart2.Titles[0].Font = new System.Drawing.Font("Microsoft Sans Serif", 12F); //标题字体                 //设置图表显示样式                 this.chart2.Series[0].Color = Color.Red;                 if (rb1.Checked)                 {                     //this.chart2.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart2.Titles[0].Text = string.Format("2号监测点");                     this.chart2.Series[0].ChartType = SeriesChartType.Line;                 }                 if (rb2.Checked)                 {                     this.chart2.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart2.Series[0].ChartType = SeriesChartType.Spline;                 }                 this.chart2.Series[0].Points.Clear();                 //DBEngine.ConnectDB("orcl", "dt", "6312");                 dataQueue2.Clear();//清空队列中所有数据             }             catch (Exception ex)             {             }         }         private void InitChart3()         {             try             {                 //定义图表区域                 this.chart3.ChartAreas.Clear();                 ChartArea chartArea3 = new ChartArea("C3");                 this.chart3.ChartAreas.Add(chartArea3);                 //this.chart1.Dock = DockStyle.Fill;                 //定义存储和显示点的容器                 this.chart3.Series.Clear();                 Series series3 = new Series("S3");                 series3.ChartArea = "C3";                 this.chart3.Series.Add(series3);                 //设置图表显示样式                 this.chart3.ChartAreas[0].AxisY.Minimum = 30000;                 this.chart3.ChartAreas[0].AxisY.Maximum = 50000;                 this.chart3.ChartAreas[0].AxisX.Minimum = 1;                 this.chart3.ChartAreas[0].AxisX.Maximum = 31;                 this.chart3.ChartAreas[0].AxisX.Interval = 1;                 this.chart3.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Silver;                 this.chart3.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Silver;                 //设置标题                 this.chart3.Titles.Clear();                 this.chart3.Titles.Add("S03");                 this.chart3.Titles[0].Text = "动态折线图显示";                 this.chart3.Titles[0].ForeColor = Color.RoyalBlue;                 this.chart3.Titles[0].Font = new System.Drawing.Font("Microsoft Sans Serif", 12F); //标题字体                 //设置图表显示样式                 this.chart3.Series[0].Color = Color.Red;                 if (rb1.Checked)                 {                     //this.chart3.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart3.Titles[0].Text = string.Format("3号监测点");                     this.chart3.Series[0].ChartType = SeriesChartType.Line;                 }                 if (rb2.Checked)                 {                     this.chart3.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart3.Series[0].ChartType = SeriesChartType.Spline;                 }                 this.chart3.Series[0].Points.Clear();                 //DBEngine.ConnectDB("orcl", "dt", "6312");                 dataQueue3.Clear();//清空队列中所有数据             }             catch (Exception ex)             {             }         }         private void InitChart4()         {             try             {                 //定义图表区域                 this.chart4.ChartAreas.Clear();                 ChartArea chartArea4 = new ChartArea("C4");                 this.chart4.ChartAreas.Add(chartArea4);                 //this.chart1.Dock = DockStyle.Fill;                 //定义存储和显示点的容器                 this.chart4.Series.Clear();                 Series series4 = new Series("S4");                 series4.ChartArea = "C4";                 this.chart4.Series.Add(series4);                 //设置图表显示样式                 this.chart4.ChartAreas[0].AxisY.Minimum = 30000;                 this.chart4.ChartAreas[0].AxisY.Maximum = 50000;                 this.chart4.ChartAreas[0].AxisX.Minimum = 1;                 this.chart4.ChartAreas[0].AxisX.Maximum = 31;                 this.chart4.ChartAreas[0].AxisX.Interval = 1;                 this.chart4.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Silver;                 this.chart4.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Silver;                 //设置标题                 this.chart4.Titles.Clear();                 this.chart4.Titles.Add("S04");                 this.chart4.Titles[0].Text = "动态折线图显示";                 this.chart4.Titles[0].ForeColor = Color.RoyalBlue;                 this.chart4.Titles[0].Font = new System.Drawing.Font("Microsoft Sans Serif", 12F); //标题字体                 //设置图表显示样式                 this.chart4.Series[0].Color = Color.Red;                 if (rb1.Checked)                 {                     //this.chart4.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart4.Titles[0].Text = string.Format("4号监测点");                     this.chart4.Series[0].ChartType = SeriesChartType.Line;                 }                 if (rb2.Checked)                 {                     this.chart4.Titles[0].Text = string.Format("动态 {0} 显示", rb1.Text);                     this.chart4.Series[0].ChartType = SeriesChartType.Spline;                 }                 this.chart4.Series[0].Points.Clear();                 //DBEngine.ConnectDB("orcl", "dt", "6312");                 dataQueue4.Clear();//清空队列中所有数据             }             catch (Exception ex)             {             }         }         private void UpdateDate()         {             //1 2 3 4号点同时更新             try             {                 //获取当前时间的batch值，将batch+1的时间值提取显示。                 string selectsql = string.Format("select * from stressinfo where operatetime=to_date('{0}','yyyy-mm-dd')", dtp1.Value.ToShortDateString());                 DataTable dtDate = new DataTable();                 dtDate = DBEngine.GetDataTableBySql(selectsql);                 if (dtDate.Rows.Count > 0) //4条                 {                     string[] getmonthNow = dtp1.Value.ToShortDateString().Split('/'); //有的电脑是'-'                     monthNow = getmonthNow[1];                     int currentBatch = DBEngine.ObjToInt(dtDate.Rows[0]["batchnum"]);                     //int currentNode = DBEngine.ObjToInt(dtDate.Rows[0]["NODE"]); //当前节点和当前批次确定唯一记录                     currentBatch++;                     //获取下一个显示的时间值以及应力值                     string nextsql1 = string.Format("select * from stressinfo where batchnum='{0}' and node=1", currentBatch);                     DataTable dtNext1 = new DataTable();                     dtNext1 = DBEngine.GetDataTableBySql(nextsql1);//取得了下一个批次的所有应力监测点数据。                     if (dtNext1.Rows.Count > 0)                     {                         stress1 = DBEngine.ObjToInt(dtNext1.Rows[0]["CURRENTSTRESS"]);                         dtp1.Value = DBEngine.ObjToDateTime(dtNext1.Rows[0]["OPERATETIME"]); //日期显示（之后应该还有各点应力的提取）                         currentTime = dtp1.Value.ToShortDateString();                         string[] datetime = currentTime.Split('/');                         monthNext = datetime[1];                         if (monthNow != monthNext)                             isRefresh = true;                     }                     else                     {                         timer1.Stop();//数据到头了，没有数据了，batch+1找不到了                         btnStop.Focus(); //停止键焦点显示                     }                     ///第二个点，不用更新数据                     string nextsql2 = string.Format("select * from stressinfo where batchnum='{0}' and node=2", currentBatch);                     DataTable dtNext2 = new DataTable();                     dtNext2 = DBEngine.GetDataTableBySql(nextsql2);//取得了下一个批次的所有应力监测点数据。                     if (dtNext2.Rows.Count > 0)                     {                         stress2 = DBEngine.ObjToInt(dtNext2.Rows[0]["CURRENTSTRESS"]);                     }                     else                     {                         timer1.Stop();//数据到头了，没有数据了，batch+1找不到了                         btnStop.Focus(); //停止键焦点显示                     }                     ///第三个点，不用更新数据                     string nextsql3 = string.Format("select * from stressinfo where batchnum='{0}' and node=3", currentBatch);                     DataTable dtNext3 = new DataTable();                     dtNext3 = DBEngine.GetDataTableBySql(nextsql3);//取得了下一个批次的所有应力监测点数据。                     if (dtNext3.Rows.Count > 0)                     {                         stress3 = DBEngine.ObjToInt(dtNext3.Rows[0]["CURRENTSTRESS"]);                     }                     else                     {                         timer1.Stop();//数据到头了，没有数据了，batch+1找不到了                         btnStop.Focus(); //停止键焦点显示                     }                     ///第四个点，不用更新数据                     string nextsql4 = string.Format("select * from stressinfo where batchnum='{0}' and node=4", currentBatch);                     DataTable dtNext4 = new DataTable();                     dtNext4 = DBEngine.GetDataTableBySql(nextsql4);//取得了下一个批次的所有应力监测点数据。                     if (dtNext4.Rows.Count > 0)                     {                         stress4 = DBEngine.ObjToInt(dtNext4.Rows[0]["CURRENTSTRESS"]);                     }                     else                     {                         timer1.Stop();//数据到头了，没有数据了，batch+1找不到了                         btnStop.Focus(); //停止键焦点显示                     }                 }             }             catch             {             }         } }

因为涉及到一些业务，有些代码没有粘，数据是和Oracle数据库进行交互的，类文件名DBEngine.cs，大家自己做的时候别忘连接数据库，最终效果图

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