C# TeeChart 图表学习使用记录
最近对工作有点新想法,想从公司车联网数据库中提取各种行驶数据进行分析然后生成报表(巴拉巴拉,索罗无关的东西就说了)。不如下面这种曲面图,看着样子可是Visual Studio自带的Chart控件可以满足的。
当然这个图现在是用Excel生成的曲线图。excel中是通过一个交叉表生成图表,数据如下:
10 | 20 | 30 | 40 | 50 | 60 | 70 | |
-12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
-10 | 0.036169 | 0.050637 | 0 | 0 | 0 | 0 | 0 |
-8 | 0.014468 | 0.332755 | 0 | 0 | 0 | 0 | 0 |
-6 | 0 | 0.260417 | 0 | 0 | 0 | 0 | 0 |
-4 | 0 | 0.332755 | 0.173611 | 0.079572 | 0 | 0 | 0 |
-2 | 0.108507 | 0.217014 | 0.15191 | 0.643808 | 0 | 0.05787 | 0.000419 |
0 | 21.62905 | 10.28646 | 8.615451 | 8.65162 | 3.240741 | 2.003762 | 0.014495 |
2 | 3.899016 | 9.866898 | 8.637153 | 10.12731 | 5.309606 | 1.844618 | 0.013344 |
4 | 0.614873 | 0.426794 | 0.41956 | 0.007234 | 0 | 0 | 0 |
6 | 0.122975 | 0.238715 | 0 | 0 | 0 | 0 | 0 |
8 | 0.094039 | 0 | 0 | 0 | 0 | 0 | 0 |
10 | 0.007234 | 0 | 0 | 0 | 0 | 0 | 0 |
12 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
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周末经过各种百度一番,搜索到TeeChart这个第三方控件。官方网站https://www.steema.com/
选择“.NET”版本的控件下载。下载的为评估板,非注册版本,2016版本好像暂无破解版本
首先先要将上述的交叉表转换成为二维表,如下:
X | Y | Z |
-12 | 10 | 0 |
-12 | 20 | 0 |
-12 | 30 | 0 |
…… | ||
12 | 40 | 0 |
12 | 50 | 0 |
12 | 60 | 0 |
12 | 70 | 0 |
转换后的表格如下:testData.xlsx
using System; using System.Collections.Generic; using System.ComponentModel; using System.Data; using System.Drawing; using System.Linq; using System.Text; using System.Threading.Tasks; using System.Windows.Forms; using System.Data.OleDb; namespace WindowsFormsApplication2 { public partial class Form1 : Form { public Form1() { InitializeComponent(); } private void Form1_Load(object sender, EventArgs e) { Steema.TeeChart.Styles.Surface surface = new Steema.TeeChart.Styles.Surface(); tChart1.Series.Add(surface); DataTable dt = ExcelToDataSet("d://testData.xlsx").Tables[0]; List<double> arrayX = new List<double>(); List<double> arrayY = new List<double>(); List<double> arrayZ = new List<double>(); for (int i=0;i<dt.Rows.Count-2;i++) { if (dt.Rows[i][0].ToString() == "") break; arrayX.Add(Convert.ToDouble(dt.Rows[i][0].ToString())); arrayY.Add(Convert.ToDouble(dt.Rows[i][1].ToString())); arrayZ.Add(Convert.ToDouble(dt.Rows[i][2].ToString())); } this.tChart1.Axes.Depth.Visible = true; this.tChart1.Axes.Depth.Labels.ValueFormat = "0.#"; this.tChart1.Axes.Depth.Increment = 10; this.tChart1.Axes.Bottom.Labels.ValueFormat = "0.#"; this.tChart1.Axes.Bottom.Increment = 2; this.tChart1.Aspect.Chart3DPercent = 100; this.tChart1.Aspect.Orthogonal = false; this.tChart1.Aspect.Perspective = 50; this.tChart1.Aspect.Rotation = 327; this.tChart1.Aspect.Elevation = 352; this.tChart1.Aspect.Zoom = 70; this.tChart1.Aspect.View3D = true; surface.IrregularGrid = true; surface.Add(arrayX.ToArray(), arrayY.ToArray(), arrayZ.ToArray()); //tChart1.AutoRepaint = true; //tChart1.Refresh(); //surface1.FillSampleValues(); } public DataSet ExcelToDataSet(string Path) { string strConn = "Provider=Microsoft.Ace.OleDb.12.0;" + "data source=" + Path + ";Extended Properties='Excel 12.0; HDR=Yes; IMEX=1'"; OleDbConnection conn = new OleDbConnection(strConn); if (conn.State.ToString() == "Open") { conn.Close(); } conn.Open(); string s = conn.State.ToString(); OleDbDataAdapter myCommand = null; DataSet ds = null; DataTable yTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "TABLE" }); string tableName = yTable.Rows[0]["Table_Name"].ToString(); string strSel = "select * from [" + tableName + "]";//xls //strExcel = "select * from [sheet1$]"; myCommand = new OleDbDataAdapter(strSel, strConn); ds = new DataSet(); myCommand.Fill(ds,"tables"); DataTable dt = ds.Tables[0]; conn.Close(); return ds; } } }
这是一种方法,使用Add方法将转换后的XYZ一条一条逐一写入数据;
值得要说的是,上述的表格是统计后的数据,所以生成后的图标应该是一个规则的图形。下面代码一定要执行,否者是不会显示出图形。
surface.IrregularGrid = true;//将不规则网格开启
最后执行效果如下图:
上述的数据绑定属于一个比较原始的方法,下面的方法是直接通过设置DataSource绑定数据。
surface1.DataSource = ExcelToDataSet("d:\\testData.xlsx"); surface1.CheckDataSource();
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