Question

我所拥有的配置文件如下所示：

Item|Size|Directory|Data  
A|12|D_01|11/28/10  
C|13|D_01|11/28/10  
B|12|D_01|11/28/10  
Back|122|D_02|11/28/10  
Body|112|D_02|11/28/10  
A|12|D_01|11/29/10  
C|13|D_01|11/29/10  
B|12|D_01|11/29/10  
Back|122|D_01|11/29/10  
Body|112|D_01|11/29/10  
Arm|20|D_01|11/29/10

我的x轴是日期，我没有问题，如果我只有静态数量的实例来弥补我的YI会很好，但是如何创建一个自动创建点的单个堆叠条形图每个目录的每个项目？

所以堆叠的条1将是A.B.C，Body，Back，Arm并且示例显示在29上我添加了一个Arm项。因此28日的1号酒吧有5分，29号的2号堆积显示6分。

我希望这是有道理的.. 除了如何正确显示条形图外，我不需要任何帮助。

Answer 1

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目前还不清楚目录如何影响数据的显示，假设只需要两个条形（2个日期各1个），这是一个例子。格式化日期轴和处理空数据的方法有两种：1使用AxisType.Date = DateAsOrdinal，并使用AxisType.Date = Date和don'为数据为空的日期或[2]添加零值t为数据为空的日期添加值。如果存在空数据，则DateAsOrdinal似乎将数据应用于错误的日期 - 这似乎是一个错误或至少不直观。该示例使用AxisType.Date = Date方法，该方法需要额外格式化日期轴。

     using ZedGraph;

     ...

     GraphPane myPane = zg1.GraphPane; // zg1 is a ZedGraph control.

     // Set the title and axis label
     myPane.Title.Text = "Stacked Bar, ZedGraph ver 5.1.5.28844";
     myPane.YAxis.Title.Text = "Value";

     // Create two dates.
     XDate date1 = new XDate(2010, 11, 28); // First date.
     XDate date2 = new XDate(2010, 11, 29); // Second date.

     // Create data lists and bars for A, B, C, Back, Body and Arm (6 total).

     ZedGraph.PointPairList listA = new ZedGraph.PointPairList();
     listA.Add( date1, 12 );
     listA.Add( date2, 13);

     BarItem barA = zg1.GraphPane.AddBar("A", listA, Color.Red );
     barA.Bar.Fill = new Fill( Color.Red );

     ZedGraph.PointPairList listB = new ZedGraph.PointPairList();
     listB.Add(date1, 12);
     listB.Add(date2, 12);

     BarItem barB = zg1.GraphPane.AddBar("B", listB, Color.Blue);
     barB.Bar.Fill = new Fill(Color.Blue);

     ZedGraph.PointPairList listC = new ZedGraph.PointPairList();
     listC.Add(date1, 13);
     listC.Add(date2, 12);

     BarItem barC = zg1.GraphPane.AddBar("C", listC, Color.Green);
     barC.Bar.Fill = new Fill(Color.Green);

     ZedGraph.PointPairList listBack = new ZedGraph.PointPairList();
     listBack.Add(date1, 122);
     listBack.Add(date2, 122);
     BarItem barBack = zg1.GraphPane.AddBar("Back", listBack, Color.Red);
     barBack.Bar.Fill = new Fill(Color.Red, Color.White, Color.Red);

     ZedGraph.PointPairList listBody = new ZedGraph.PointPairList();
     listBody.Add(date1, 112);
     listBody.Add(date2, 112);
     BarItem barBody = zg1.GraphPane.AddBar("Body", listBody, Color.Blue);
     barBody.Bar.Fill = new Fill(Color.Blue, Color.White, Color.Blue);

     ZedGraph.PointPairList listArm = new ZedGraph.PointPairList();
     // listArm.Add(date1, 0); // Not needed for XAxis.Type = AxisType.Date.
     listArm.Add(date2, 20);
     BarItem barArm = zg1.GraphPane.AddBar("Arm", listArm, Color.Green);
     barArm.Bar.Fill = new Fill(Color.Green, Color.White, Color.Green);

     // Done creating bars.

     myPane.BarSettings.Type = BarType.Stack;  // stacks bar rather than side-by-side.
     myPane.BarSettings.ClusterScaleWidth = 1; // Widen bars somewhat.

     // Format the X axis.
     XAxis x = myPane.XAxis;

     x.Type = AxisType.Date;
     x.Scale.Format = "yyyy-mm-dd";
     x.Scale.BaseTic = date1; // Puts the first major tic at the first date.
     x.Scale.Min = date1 - 0.5; // Manually set the left of the graph window just prior to the first date.
     x.Scale.Max = date2 + 0.5; // Manually set the right of the graph window just after the last date.

     // Setting the step size...
     // Isn't required if AxisType.Date is DateAsOrdinal.
     // Docs says that MinorStep is ignore for AxisType.Date but seems inaccurate.
     // Step value of 24 was derived by trial and error. Seems it should be 1 if Unit = DateUnit.Day.
     // A value of 24 implies that the Units are acting like DateUnit.Hour.
     x.Scale.MajorUnit = DateUnit.Day; 
     x.Scale.MinorUnit = DateUnit.Day;
     x.Scale.MinorStep = 24; 
     x.Scale.MajorStep = 24;

     zg1.AxisChange(); // Update graph.

ZedGraph在C＃中叠加了多个点

1 个答案: