zedgraph基本教程篇--第三节、第四节DateAxisSampleDemo.cs和TextAxisSampleDemo.cs介绍
2011-04-06 00:49
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第三节、第四节DateAxisSampleDemo.cs和TextAxisSampleDemo.cs介绍
由于这两个例子很简单也很相似,所以决定还是放到一起来写。按照惯例还是先给出代码和图示。
代码如下: DateAxisSampleDemo: using System; using System.Drawing; using System.Collections; using ZedGraph; namespace ZedGraph.Demo { ///<summary> /// Summary description for SimpleDemo. ///</summary> public class DateAxisSampleDemo : DemoBase { public DateAxisSampleDemo() : base( "Code Project Date Axis Sample", "Date Axis Sample", DemoType.Tutorial ) { GraphPane myPane = base.GraphPane; // Set the titles and axis labels myPane.Title = "My Test Date Graph"; myPane.XAxis.Title = "Date"; myPane.YAxis.Title = "My Y Axis"; // Make up some data points based on the Sine function PointPairList list = new PointPairList(); for ( int i=0; i<36; i++ ) { double x = (double) new XDate( 1995, 5, i+11 ); double y = Math.Sin( (double) i * Math.PI / 15.0 ); list.Add( x, y ); } // Generate a red curve with diamond // symbols, and "My Curve" in the legend LineItem myCurve = myPane.AddCurve( "My Curve", list, Color.Red, SymbolType.Diamond ); // Set the XAxis to date type myPane.XAxis.Type = AxisType.Date; base.ZedGraphControl.AxisChange(); } } } TextAxisSampleDemo: using System; using System.Drawing; using System.Collections; using ZedGraph; namespace ZedGraph.Demo { ///<summary> /// Summary description for SimpleDemo. ///</summary> public class TextAxisSampleDemo : DemoBase { public TextAxisSampleDemo() : base( "Code Project Text Axis Sample", "Text Axis Sample", DemoType.Tutorial ) { GraphPane myPane = base.GraphPane; // Set the title and axis labels myPane.Title = "My Test Date Graph"; myPane.XAxis.Title = "Label"; myPane.YAxis.Title = "My Y Axis"; // Make up some data points string[] labels = { "USA", "Spain\nMadrid", "Qatar", "Morocco", "UK", "Uganda", "Cambodia", "Malaysia", "Australia", "Ecuador" }; double[] y = new double[10]; for ( int i=0; i<10; i++ ) y[i] = Math.Sin( (double) i * Math.PI / 2.0 ); // Generate a red curve with diamond // symbols, and "My Curve" in the legend LineItem myCurve = myPane.AddCurve( "My Curve", null, y, Color.Red, SymbolType.Diamond ); //Make the curve smooth myCurve.Line.IsSmooth = true; // Set the XAxis to Text type myPane.XAxis.Type = AxisType.Text; // Set the XAxis labels myPane.XAxis.TextLabels = labels; // Set the labels at an angle so they don't overlap myPane.XAxis.ScaleFontSpec.Angle = 40; base.ZedGraphControl.AxisChange(); } } } 看到前两节的介绍,这里的代码就应该很简单了,我要说的只有两个类XDate和TextLabel这个属性。 首先XDate就相当于msdn中的DateTime这个类,是个时间日期类,也是具有多个构造函数,XDate( 1995, 5, i+11 )是按年月日来初始化的。 第二个就是TextLabel属性,它主要是把Label的内容显示在Pane上。如TextAxisSampleDemo的X轴。 本文来自CSDN博客,转载请标明出处:http://blog.csdn.net/tjvictor/archive/2006/11/25/1413781.aspx
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