C#窗体应用中使用ZedGraph曲线插件绘制图表

阳光穿透心脏的1/2处 2023-10-19 08:01 10阅读 0赞

## 场景 ##

### ZedGraph ###

ZedGraph 是一个开源的.NET图表类库， 全部代码都是用C\#开发的。它可以利用任意的数据集合创建2D的线性和柱形图表。

### 控件下载 ###

[https://download.csdn.net/download/badao\_liumang\_qizhi/11578445][https_download.csdn.net_download_badao_liumang_qizhi_11578445]

### 英文手册下载 ###

[https://download.csdn.net/download/badao\_liumang\_qizhi/11578491][https_download.csdn.net_download_badao_liumang_qizhi_11578491]

### 示例源码下载 ###

[https://download.csdn.net/download/badao\_liumang\_qizhi/11578558][https_download.csdn.net_download_badao_liumang_qizhi_11578558]

### 效果 ###

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70][]

## 实现 ##

VS2013新建项目-Windows窗体程序。

然后在窗体设计页面，打开工具箱（ctrl+alt+x）。

将上面下载的控件(以.dll结尾的)拖拽到工具箱中。

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1][]

然后调整其大小使其充满整个form。

打开Form1.cs进入代码的编写。

在Form初始化后编写createPane，传递的参数是ZedGraph控件对象。

public Form1()
            {
                InitializeComponent();
                //Form1初始化后创建设置控件的方法并将当前ZedGraph控件传递
                createPane(zedGraphControl1);
            }

然后在方法createPane中。

//需要引入命名空间--using ZedGraph;
            public void createPane(ZedGraphControl zgc)
            {
                GraphPane myPane = zgc.GraphPane;
    
                //设置图表标题 和 x y 轴标题
                myPane.Title.Text = "霸道测试标题";
    
                myPane.XAxis.Title.Text = "X轴标题";
    
                myPane.YAxis.Title.Text = "Y轴标题";
    
                //更改标题的字体
    
                FontSpec myFont = new FontSpec("Arial",20,Color.Red,false,false,false);
    
                myPane.Title.FontSpec = myFont;
    
                myPane.XAxis.Title.FontSpec = myFont;
    
                myPane.YAxis.Title.FontSpec = myFont;
    
                // 造一些数据，PointPairList里有数据对x，y的数组
    
                Random y = new Random();
    
                PointPairList list1 = new PointPairList();
    
                for (int i = 0; i < 36; i++)
                {
    
                    double x = i;
    
                    //double y1 = 1.5 + Math.Sin((double)i * 0.2);
    
                    double y1 = y.NextDouble() * 1000;
    
                    list1.Add(x, y1); //添加一组数据
    
                }
    
                // 用list1生产一条曲线，标注是“曲线1”
    
                LineItem myCurve = myPane.AddCurve("曲线1", list1, Color.Red, SymbolType.Star);
    
                //填充图表颜色
    
                myPane.Fill = new Fill(Color.White, Color.FromArgb(200, 200, 255), 45.0f);
    
                //以上生成的图标X轴为数字，下面将转换为日期的文本
    
                string[] labels = new string[36];
    
                for (int i = 0; i < 36; i++)
                {
    
                    labels[i] = System.DateTime.Now.AddDays(i).ToShortDateString();
    
                }
    
                myPane.XAxis.Scale.TextLabels = labels; //X轴文本取值
    
                myPane.XAxis.Type = AxisType.Text;   //X轴类型
    
                //画到zedGraphControl1控件中，此句必加
    
                zgc.AxisChange();//在数据变化时绘图
    
                //更新图表
    
                zedGraphControl1.Invalidate();
    
                //重绘控件
    
                Refresh();
            }

详细见注释，运行项目。

[https_download.csdn.net_download_badao_liumang_qizhi_11578445]: https://download.csdn.net/download/badao_liumang_qizhi/11578445
[https_download.csdn.net_download_badao_liumang_qizhi_11578491]: https://download.csdn.net/download/badao_liumang_qizhi/11578491
[https_download.csdn.net_download_badao_liumang_qizhi_11578558]: https://download.csdn.net/download/badao_liumang_qizhi/11578558
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70]: https://img-blog.csdnimg.cn/20190819105301203.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk_size_16_color_FFFFFF_t_70 1]: https://img-blog.csdnimg.cn/20190819105933174.jpg?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L0JBREFPX0xJVU1BTkdfUUlaSEk=,size_16,color_FFFFFF,t_70