WInform中實現設置ZedGraph中曲線的X軸與Y軸的上限與下限

場景

Winforn中設置ZedGraph曲線圖的屬性、坐標軸屬性、刻度屬性：

https://blog.csdn.net/BADAO_LIUMANG_QIZHI/article/details/100112573

在上面實現曲線相關屬性的設置的基礎上，要能修改曲線圖的X軸以及Y軸的上限和下限。

效果

實現

設置Y軸的上限

拖拽按鈕，雙擊進入其點擊事件

 private void button8_Click(object sender, EventArgs e)
        {
            myPane.YAxis.Scale.Max = 1500;
            //更新圖表
            zedGraphControl1.Invalidate();

        }

 

設置Y軸的下限

拖拽按鈕，雙擊進入其點擊事件

 private void button9_Click(object sender, EventArgs e)
        {
            myPane.YAxis.Scale.Min = -1500;
            //更新圖表
            zedGraphControl1.Invalidate();
        }

 

設置X軸的上限

拖拽按鈕，雙擊進入其點擊事件

 

private void button10_Click(object sender, EventArgs e)
        {
            myPane.XAxis.Scale.Max = 60;
            //更新圖表
            zedGraphControl1.Invalidate();
        }

 

設置X軸的下限

拖拽按鈕，雙擊進入其點擊事件

private void button11_Click(object sender, EventArgs e)
        {
            myPane.XAxis.Scale.Min = -5;
            //更新圖表
            zedGraphControl1.Invalidate();
        }

 

完整示例代碼

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 ZedGraph;

namespace ZedGraphTest
{
    public partial class Form1 : Form
    {

        GraphPane myPane = new GraphPane();
        public Form1()
        {
            InitializeComponent();
            //Form1初始化后創建設置控件的方法並將當前ZedGraph控件傳遞
            createPane(zedGraphControl1);
        }

        //需要引入命名空間--using ZedGraph;
        public void createPane(ZedGraphControl zgc) 
        {
            myPane = zgc.GraphPane;

            
            //設置圖表標題 和 x y 軸標題
            myPane.Title.Text = "霸道測試標題";

            myPane.XAxis.Title.Text = "X軸標題";

            myPane.YAxis.Title.Text = "Y軸標題";

            //更改標題的字體

            FontSpec myFont = new FontSpec("Arial",16,Color.Black,false,false,false);

            myPane.XAxis.Title.FontSpec = myFont;

            myPane.YAxis.Title.FontSpec = myFont;

            // 造一些數據，PointPairList里有數據對x，y的數組

            Random y = new Random();

            PointPairList list1 = new PointPairList();

            for (int i = 0; i < 50; i++)
            {

                double x = i;

                double y1 = y.NextDouble() * 1000;

                list1.Add(x, y1); //添加一組數據

            }

            // 用list1生產一條曲線，標注是“曲線1”
            //SymbolType，枚舉代表曲線的樣式
            //Square = 0,
            //Diamond = 1,
            //Triangle = 2,
            //Circle = 3,
            //XCross = 4,
            //Plus = 5,
            //Star = 6,
            //TriangleDown = 7,
            //HDash = 8,
            //VDash = 9,
            //UserDefined = 10,
            //Default = 11,
            //None = 12,
            LineItem myCurve = myPane.AddCurve("曲線1", list1, Color.Red, SymbolType.None);

            //填充圖表顏色
            myPane.Fill = new Fill(Color.White, Color.LightGray, 45.0f);

            //以上生成的圖標X軸為數字，下面將轉換為日期的文本

            string[] labels = new string[50];

            for (int i = 0; i < 50; i++)
            {

                labels[i] = System.DateTime.Now.AddDays(i).ToShortDateString();

            }

            #region 坐標軸屬性設置
            //X軸類型
            myPane.XAxis.Type = AxisType.Text;   
            //顯示小刻度 是false則看不到效果
            myPane.XAxis.MinorGrid.IsVisible = true;
            //線的顏色
            myPane.XAxis.Color = Color.Black;
            //點線中點與點之間的間隔
            myPane.XAxis.MinorGrid.DashOff = 1f;
            //點線中點的長度
            myPane.XAxis.MinorGrid.DashOn = 1f;
            //畫筆寬度
            myPane.XAxis.MinorGrid.PenWidth = 1f;
            //
          
            #endregion

            #region 坐標軸上刻度線設置
            //X軸文本取值
            myPane.XAxis.Scale.TextLabels = labels; 
            //第一個刻度從哪里開始
            myPane.XAxis.Scale.BaseTic = 1;
            //刻度值的字體屬性
            myPane.XAxis.Scale.FontSpec = myFont;
           
         
            #endregion
            //畫到zedGraphControl1控件中，此句必加

            zgc.AxisChange();//在數據變化時繪圖

            //更新圖表

            zedGraphControl1.Invalidate();

            //重繪控件

            Refresh();

            #region 屬性設置
            //是否允許橫向縮放
            this.zedGraphControl1.IsEnableHZoom = true;
            //是否允許縱向縮放
            this.zedGraphControl1.IsEnableVZoom = true;
            //是否允許縮放
            this.zedGraphControl1.IsEnableZoom = true;
            //是否顯示右鍵菜單
            this.zedGraphControl1.IsShowContextMenu = true;
            //復制圖像時是否顯示提示信息
            this.zedGraphControl1.IsShowCopyMessage = true;
            //鼠標在圖表上移動時是否顯示鼠標所在點對應的坐標 默認為false
            this.zedGraphControl1.IsShowCursorValues = true;
            //是否顯示橫向滾動條
            this.zedGraphControl1.IsShowHScrollBar = true;
            //是否顯示縱向滾動條
            this.zedGraphControl1.IsShowVScrollBar = true;
            //鼠標經過圖表上的點時是否顯示該點所對應的值 默認為false 
            this.zedGraphControl1.IsShowPointValues = true;
            //使用滾輪時以鼠標所在點為中心進行縮放還是以圖形中心進行縮放
            //this.zedGraphControl1.IsZoomOnMouseCenter = true;
            #endregion
            //修改右鍵為中文菜單
            this.zedGraphControl1.ContextMenuBuilder += MyContextMenuBuilder;
        }
        private void zedGraphControl1_Load(object sender, EventArgs e)
        {

        }

        /// <summary>
        /// 打印預覽
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button1_Click(object sender, EventArgs e)
        {
            this.zedGraphControl1.DoPrintPreview();
        }

        //復制到剪切板
        private void button2_Click(object sender, EventArgs e)
        {
            //ture代表復制成功提示
            this.zedGraphControl1.Copy(true);
        }

        /// <summary>
        /// 獲取圖片並保存
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button3_Click(object sender, EventArgs e)
        {
            //獲取圖像
            Image image = this.zedGraphControl1.GetImage();
            //保存照片嗎，指定保存路徑
            image.Save(@"C:\Users\HAOHAO\Desktop\1.png");
            //彈窗提示
            MessageBox.Show("保存成功");

        }

        /// <summary>
        /// 顯示另存為對話框
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button4_Click(object sender, EventArgs e)
        {
            this.zedGraphControl1.SaveAs();
        }

        /// <summary>
        /// 另存為BMP文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button5_Click(object sender, EventArgs e)
        {
            this.zedGraphControl1.SaveAsBitmap();
        }
        /// <summary>
        /// 另存為EMF文件
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button6_Click(object sender, EventArgs e)
        {
            this.zedGraphControl1.SaveAsEmf();
        }
        /// <summary>
        /// 一鍵復原
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button7_Click(object sender, EventArgs e)
        {
            //一鍵復原縮放
            this.zedGraphControl1.ZoomOutAll(myPane);
        }


        //右擊菜單變中文
        private static void MyContextMenuBuilder(ZedGraphControl control, ContextMenuStrip menuStrip,
                    Point mousePt, ZedGraphControl.ContextMenuObjectState objState)
        {
            foreach (ToolStripMenuItem item in menuStrip.Items)
            {
                switch (item.Name)
                {
                    case "copied_to_clip":
                        item.Text = @"復制到剪貼板";
                        break;
                    case "copy":
                        item.Text = @"復制";
                        break;
                    case "page_setup":
                        item.Text = @"頁面設置...";
                        break;
                    case "print":
                        item.Text = @"打印...";
                        break;
                    case "save_as":
                        item.Text = @"另存圖表...";
                        break;
                    case "set_default":
                        item.Text = @"恢復默認大小";
                        break;
                    case "show_val":
                        item.Text = @"顯示節點數值";
                        break;
                    case "title_def":
                        item.Text = @"標題";
                        break;
                    case "undo_all":
                        item.Text = @"還原縮放/移動";
                        break;

                    case "unpan":
                        item.Text = @"還原移動";
                        break;

                    case "unzoom":
                        item.Text = @"還原縮放";
                        break;

                    case "x_title_def":
                        item.Text = @"X 軸";
                        break;
                    case "y_title_def":
                        item.Text = @"Y 軸";
                        break;

                }
            }
        }

        private void button8_Click(object sender, EventArgs e)
        {
            myPane.YAxis.Scale.Max = 1500;
            //更新圖表
            zedGraphControl1.Invalidate();

        }

        //設置Y軸下限
        private void button9_Click(object sender, EventArgs e)
        {
            myPane.YAxis.Scale.Min = -1500;
            //更新圖表
            zedGraphControl1.Invalidate();
        }
        /// <summary>
        /// 設置X軸上限
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button10_Click(object sender, EventArgs e)
        {
            myPane.XAxis.Scale.Max = 60;
            //更新圖表
            zedGraphControl1.Invalidate();
        }
        /// <summary>
        /// 設置X軸下限
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        private void button11_Click(object sender, EventArgs e)
        {
            myPane.XAxis.Scale.Min = -5;
            //更新圖表
            zedGraphControl1.Invalidate();
        }
    }
}