使用ZedGraph制作联动图表

最新推荐文章于 2025-05-13 01:05:14 发布

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最新推荐文章于 2025-05-13 01:05:14 发布

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分类专栏： c#开发文章标签： c# chart 图表开源 ZedGraph

本文链接：https://blog.youkuaiyun.com/yiyi31130108/article/details/24288623

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本文介绍了一个图表演示案例，展示了如何使多个图表面板同步滚动及缩放。通过设置图表属性实现同步效果，适用于需要对比不同图表数据的应用场景。

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先上图

代码中都是通过设置图标属性来完成图标的创建的，思路很清晰，进而也说明图标内部功能很强大。

public class SynchronizedPanes : DemoBase
{

  public SynchronizedPanes()
   : base( "A demo that shows how multiple GraphPanes can be synchronized to scroll together." +
      " Test it by zooming in on one pane (all panes will zoom together). Then, scroll to" +
      " see all panes move together.",
      "Synchronized Panes Demo", DemoType.Line )
  {

//MasterPane包括了一系列GraphPane，以一种形式组织它们
MasterPane master = base.MasterPane;

master.Fill = new Fill( Color.White, Color.FromArgb( 220, 220, 255 ), 45.0f );
master.PaneList.Clear();

master.Title.IsVisible = true;
master.Title.Text = "Synchronized Graph Demo";

master.Margin.All = 10;
master.InnerPaneGap = 0;

ColorSymbolRotator rotator = new ColorSymbolRotator();

   for ( int j = 0; j < 3; j++ )
   {
    // Create a new graph with topLeft at (40,40) and size 600x400
    GraphPane myPaneT = new GraphPane( new Rectangle( 40, 40, 600, 400 ),
     "Case #" + ( j + 1 ).ToString(),
     "Time, Days",
     "Rate, m/s" );

myPaneT.Fill.IsVisible = false;

    myPaneT.Chart.Fill = new Fill( Color.White, Color.LightYellow, 45.0F );
    myPaneT.BaseDimension = 3.0F;
    myPaneT.XAxis.Title.IsVisible = false;
    myPaneT.XAxis.Scale.IsVisible = false;
    myPaneT.Legend.IsVisible = false;
    myPaneT.Border.IsVisible = false;
    myPaneT.Title.IsVisible = false;
    myPaneT.XAxis.MajorTic.IsOutside = false;
    myPaneT.XAxis.MinorTic.IsOutside = false;
    myPaneT.XAxis.MajorGrid.IsVisible = true;
    myPaneT.XAxis.MinorGrid.IsVisible = true;
    myPaneT.Margin.All = 0;
    if ( j == 0 )
     myPaneT.Margin.Top = 20;
    if ( j == 2 )
    {
     myPaneT.XAxis.Title.IsVisible = true;
     myPaneT.XAxis.Scale.IsVisible = true;
     myPaneT.Margin.Bottom = 10;
    }

if ( j > 0 )
myPaneT.YAxis.Scale.IsSkipLastLabel = true;

    // This sets the minimum amount of space for the left and right side, respectively
    // The reason for this is so that the ChartRect's all end up being the same size.
    myPaneT.YAxis.MinSpace = 60;
    myPaneT.Y2Axis.MinSpace = 20;

    // Make up some data arrays based on the Sine function
    double x, y;
    PointPairList list = new PointPairList();
    for ( int i = 0; i < 36; i++ )
    {
     x = (double)i + 5 + j * 3;
     y = 3.0 * ( 1.5 + Math.Sin( (double)i * 0.2 + (double)j ) );
     list.Add( x, y );
    }

    LineItem myCurve = myPaneT.AddCurve( "Type " + j.ToString(),
     list, rotator.NextColor, rotator.NextSymbol );
    myCurve.Symbol.Fill = new Fill( Color.White );

master.Add( myPaneT );
}

   using ( Graphics g = base.ZedGraphControl.CreateGraphics() )
   {
    ZedGraphControl z1 = base.ZedGraphControl;

master.SetLayout( g, PaneLayout.SingleColumn );
z1.AxisChange();

    z1.IsAutoScrollRange = true;
    z1.IsShowHScrollBar = true;
    z1.IsShowVScrollBar = true;
    z1.IsSynchronizeXAxes = true;

}

base.ZedGraphControl.AxisChange();
}
}