c#?chart縮放,局部放大問題

更新時間：2023年03月01日 09:34:54 作者：幻世頑靈

這篇文章主要介紹了c#?chart縮放,局部放大問題，具有很好的參考價值，希望對大家有所幫助。如有錯誤或未考慮完全的地方，望不吝賜教

c# chart縮放,局部放大

效果：

左鍵劃選放大區(qū)域，右鍵恢復(fù)

? ? ? ? /// <summary>
? ? ? ? /// 初始化，傳入要進行初始化的chart
? ? ? ? /// </summary>
? ? ? ? /// <param name="chart1"></param>
? ? ? ? public static void InitChart (System.Windows.Forms.DataVisualization.Charting.Chart chart1)
? ? ? ? {
? ? ? ? ? ? //開啟縮放功能
? ? ? ? ? ? chart1.ChartAreas[0].CursorX.Interval = 0;
? ? ? ? ? ? chart1.ChartAreas[0].CursorX.IsUserEnabled = true;
? ? ? ? ? ? chart1.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
? ? ? ? ? ? chart1.MouseClick += new System.Windows.Forms.MouseEventHandler(chart_MouseClick);
? ? ? ? }
?
? ? ? ? //右鍵恢復(fù)縮放
? ? ? ? static void chart_MouseClick(object sender, MouseEventArgs e)
? ? ? ? {
? ? ? ? ? ? Chart chart1 = sender as Chart;
? ? ? ? ? ? //右鍵恢復(fù)事件
? ? ? ? ? ? if (e.Button == MouseButtons.Right)
? ? ? ? ? ? {
? ? ? ? ? ? ? ? chart1.ChartAreas[0].AxisX.ScaleView.ZoomReset(0);
? ? ? ? ? ? }
? ? ? ? }

放大

僅針對x軸（y軸同理）

chartArea1.CursorX.IsUserEnabled = true;
chartArea1.CursorX.IsUserSelectionEnabled = true;

縮小

chart1.ChartAreas[0].AxisX.ScaleView.ZoomReset();

ZoomReset(0); —— 撤銷所有放大動作
ZoomReset(1); —— 撤銷上一次放大動作

設(shè)置滾動條寬度

chart1.ChartAreas[0].AxisX.ScrollBar.Size = 5;

以上所有方法也可以在chart屬性里直接進行設(shè)置

獲取選區(qū)坐標(biāo)

Console.WriteLine(chart1.ChartAreas[0].AxisX.ScaleView.ViewMinimum);//當(dāng)前顯示范圍最小坐標(biāo)
Console.WriteLine(chart1.ChartAreas[0].AxisX.ScaleView.ViewMaximum);//當(dāng)前顯示范圍最大坐標(biāo)

c# chart表格

series1屬性中XAxisType屬性值設(shè)置為：Primary
series2屬性中XAxisType屬性值設(shè)置為：Secondary

添加series會導(dǎo)致圖表預(yù)覽不可用

設(shè)置間隔與小數(shù)點

網(wǎng)格刻度

 #region 表格參數(shù)設(shè)置
            //ChartArea chartArea = chart1.ChartAreas[0];
 
            //表格標(biāo)題內(nèi)容
            Title title = new Title();
            title.Font = new System.Drawing.Font("宋體", 12F);
            title.Text = "壓機曲線波動分析";
            chart1.Titles.Add(title);
 
            //設(shè)置坐標(biāo)軸標(biāo)題
            chart1.ChartAreas[0].AxisX.Title = "位 移 / mm ";
            chart1.ChartAreas[0].AxisY.Title = "壓  力 / Kg ";
 
            //X,Y軸的最大值最小值
            chart1.ChartAreas[0].AxisX.Minimum = 0;
            chart1.ChartAreas[0].AxisX.Maximum = 100;
            chart1.ChartAreas[0].AxisY.Minimum = 0;
            chart1.ChartAreas[0].AxisY.Maximum = 200;
 
            // 設(shè)置X,Y的坐標(biāo)間距
            chart1.ChartAreas[0].AxisX.Interval = 1;
            chart1.ChartAreas[0].AxisY.Interval = 5;
 
 
            //設(shè)置坐標(biāo)軸標(biāo)題的字體
            chart1.ChartAreas[0].AxisX.TitleFont = new System.Drawing.Font("宋體", 12F);
            chart1.ChartAreas[0].AxisY.TitleFont = new System.Drawing.Font("宋體", 12F);
 
            //設(shè)置坐標(biāo)軸柵格是否可見
            chart1.ChartAreas[0].AxisX.MajorGrid.Enabled = true;
            chart1.ChartAreas[0].AxisY.MajorGrid.Enabled = true;
 
            //設(shè)置網(wǎng)格線  
            chart1.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Gainsboro;   //顏色
            chart1.ChartAreas[0].AxisX.MajorGrid.Interval = 10;                 //網(wǎng)格間隔
            chart1.ChartAreas[0].AxisX.MinorGrid.Interval = 10;
            chart1.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Gainsboro;
            chart1.ChartAreas[0].AxisY.MajorGrid.Interval = 20;
            chart1.ChartAreas[0].AxisY.MinorGrid.Interval = 20;
 
            放大表格
            chart1.ChartAreas[0].AxisX.ScaleView.Zoom(2, 3);
            chart1.ChartAreas[0].AxisX.ScaleView.Zoomable = false;
            chart1.ChartAreas[0].AxisX.ScaleView.Size = 20;
 
             Zoom into the X axis
             Enable range selection and zooming end user interface
            chart1.ChartAreas[0].CursorX.IsUserEnabled = true;
            chart1.ChartAreas[0].CursorX.IsUserSelectionEnabled = true;
            chart1.ChartAreas[0].AxisX.ScaleView.Zoomable = true;
 
            //將滾動內(nèi)嵌到坐標(biāo)軸中
            chart1.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
            chart1.ChartAreas[0].AxisY.ScrollBar.IsPositionedInside = true;
 
 
 
            #endregion
 
 
            #region 各個曲線參數(shù)設(shè)置
            //曲線類型
            chart1.Series[0].ChartType = SeriesChartType.Spline;
            chart1.Series[1].ChartType = SeriesChartType.Spline;
            chart1.Series[10].ChartType = SeriesChartType.Spline;
 
            // 曲線 線寬像素
            chart1.Series[0].BorderWidth = 1;
            chart1.Series[1].BorderWidth = 1;
            chart1.Series[10].BorderWidth = 3;
 
            // 曲線的顏色
            chart1.Series[10].Color = System.Drawing.Color.Red;
            chart1.Series[4].Color = System.Drawing.Color.Green;
            chart1.Series[5].Color = System.Drawing.Color.RoyalBlue;
 
            //右上角的曲線名稱是否顯示
            chart1.Series[0].IsVisibleInLegend = true;
            chart1.Series[1].IsVisibleInLegend = true;
            chart1.Series[10].IsVisibleInLegend = true;
 
            //右上角的曲線名稱
 
 
            chart1.Series[0].LegendText = "隨機抽取曲線1";
            chart1.Series[1].LegendText = "隨機抽取曲線2";
            chart1.Series[2].LegendText = "隨機抽取曲線3";
            chart1.Series[3].LegendText = "隨機抽取曲線4";
            chart1.Series[4].LegendText = "隨機抽取曲線5";
            chart1.Series[5].LegendText = "隨機抽取曲線6";
            chart1.Series[6].LegendText = "隨機抽取曲線7";
            chart1.Series[7].LegendText = "隨機抽取曲線8";
            chart1.Series[8].LegendText = "隨機抽取曲線9";
            chart1.Series[9].LegendText = "隨機抽取曲線10";
            chart1.Series[10].LegendText = "Average";
 
            //名稱的懸浮備注
            chart1.Series[10].LegendToolTip = "此乃10個隨機曲線的平均值曲線";
            chart1.Series[0].LegendToolTip = "隨機抽取曲線1備注";
            chart1.Series[1].LegendToolTip = "備注2";
 
            //坐標(biāo)Y值是否顯示在圖表中
            //chart1.Series[0].IsValueShownAsLabel = true;
            //chart1.Series[1].IsValueShownAsLabel = true;
            //chart1.Series[2].IsValueShownAsLabel = true;
            //chart1.Series[3].IsValueShownAsLabel = true;
            //chart1.Series[4].IsValueShownAsLabel = true;
            chart1.Series[10].IsValueShownAsLabel = true;
 
            //chart1.Series.Clear();     使表格GGG
            //chart1.Series.Dispose();
            #endregion

  //設(shè)置網(wǎng)格線
            chartDemo1.ChartAreas[0].AxisX.MajorGrid.LineColor = Color.Gray;
            chartDemo1.ChartAreas[0].AxisX.MajorGrid.Interval = 500;//網(wǎng)格間隔
            chartDemo1.ChartAreas[0].AxisX.MinorGrid.Interval = 500;
            chartDemo1.ChartAreas[0].AxisX.MajorGrid.LineDashStyle = ChartDashStyle.Dash; //設(shè)置網(wǎng)格類型為虛線
            chartDemo1.ChartAreas[0].AxisY.MajorGrid.LineColor = Color.Gray;
            chartDemo1.ChartAreas[0].AxisY.MajorGrid.Interval = 4;
            chartDemo1.ChartAreas[0].AxisY.MinorGrid.Interval = 4;
            chartDemo1.ChartAreas[0].AxisY.MajorGrid.LineDashStyle = ChartDashStyle.Dash;//網(wǎng)格Y軸線類型
            this.chartDemo1.ChartAreas[0].AxisX.MajorGrid.LineColor = System.Drawing.Color.Transparent;
        　　　　//    this.chartDemo1.ChartAreas[0].AxisY.MajorGrid.LineColor = System.Drawing.Color.Transparent;

//滑輪設(shè)置  
 chartDemo1.ChartAreas[0].AxisX.LabelStyle.Format = "HH:mm:ss";　
            chartDemo1.ChartAreas[0].AxisX.ScaleView.Size = 8;
            chartDemo1.ChartAreas[0].AxisX.ScrollBar.IsPositionedInside = true;
            chartDemo1.ChartAreas[0].AxisX.ScrollBar.Enabled = true;

   private void chart1_MouseEnter(object sender, MouseEventArgs e)
        {
            if (e.Delta > 0)//鼠標(biāo)向上
            {
                if (chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Size < 100)//判斷顯示的最大數(shù)值
                {
                    // chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Size += 2;//+=5---滾動一次顯示5個
                    chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Position += 2;
                }
            }
            else//鼠標(biāo)向下滾動
            {
                if (chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Size > 1)
                {
                    // chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Size -= 2;// - = 5---滾動一次減小顯示5個
                    chart1.ChartAreas["ChartArea1"].AxisX.ScaleView.Position -= 2;
                }
              
            }
        }
        private void chart1_MouseEnter(object sender, EventArgs e)//當(dāng)鼠標(biāo)移動到控件上-發(fā)生的事件
        {
            MouseWheel += new MouseEventHandler(chart1_MouseEnter);//調(diào)用滾輪事件
        }