C#实现chart控件动态曲线绘制
本文实例为大家分享了C#实现chart控件动态曲线绘制的具体代码,供大家参考,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
这个图还有优化的控件,我后期要做一下,还是不太好看。
可以实现曲线随日期动态增加,想到了就不难,我觉得思路挺好的,就记录一下。
以上就是本文的全部内容,希望对大家的学习有所帮助,也希望大家多多支持我们。
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