EventFrequencyDemo


1   /* ======================================
2    * JFreeChart : a free Java chart library
3    * ======================================
4    *
5    * Project Info:  http://www.jfree.org/jfreechart/index.html
6    * Project Lead:  David Gilbert (david.gilbert@object-refinery.com);
7    *
8    * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
9    *
10   * This library is free software; you can redistribute it and/or modify it under the terms
11   * of the GNU Lesser General Public License as published by the Free Software Foundation;
12   * either version 2.1 of the License, or (at your option) any later version.
13   *
14   * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
15   * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
16   * See the GNU Lesser General Public License for more details.
17   *
18   * You should have received a copy of the GNU Lesser General Public License along with this
19   * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
20   * Boston, MA 02111-1307, USA.
21   *
22   * -----------------------
23   * EventFrequencyDemo.java
24   * -----------------------
25   * (C) Copyright 2002, 2003, by Object Refinery Limited and Contributors.
26   *
27   * Original Author:  David Gilbert (for Object Refinery Limited);
28   * Contributor(s):   -;
29   *
30   * $Id: EventFrequencyDemo.java,v 1.10 2003/11/28 10:57:35 mungady Exp $
31   *
32   * Changes (from 10-Oct-2002)
33   * --------------------------
34   * 10-Oct-2002 : Added standard header and Javadocs (DG);
35   * 11-Feb-2003 : Fixed 0.9.5 bug (DG);
36   *
37   */
38  
39  package org.jfree.chart.demo;
40  
41  import java.awt.Color  ;
42  import java.text.DateFormat  ;
43  
44  import org.jfree.chart.ChartFactory;
45  import org.jfree.chart.ChartPanel;
46  import org.jfree.chart.JFreeChart;
47  import org.jfree.chart.StandardLegend;
48  import org.jfree.chart.axis.DateAxis;
49  import org.jfree.chart.labels.CategoryItemLabelGenerator;
50  import org.jfree.chart.labels.StandardCategoryItemLabelGenerator;
51  import org.jfree.chart.plot.CategoryPlot;
52  import org.jfree.chart.plot.PlotOrientation;
53  import org.jfree.chart.renderer.CategoryItemRenderer;
54  import org.jfree.chart.renderer.LineAndShapeRenderer;
55  import org.jfree.data.DefaultCategoryDataset;
56  import org.jfree.data.time.Day;
57  import org.jfree.date.SerialDate;
58  import org.jfree.ui.ApplicationFrame;
59  import org.jfree.ui.RefineryUtilities;
60  
61  /**
62   * A demo application showing how to display category data against a date axis.
63   *
64   * @author David Gilbert
65   */
66  public class EventFrequencyDemo extends ApplicationFrame {
67  
68      /**
69       * Creates a new demo.
70       *
71       * @param title  the frame title.
72       */
73      public EventFrequencyDemo(String   title) {
74  
75          super(title);
76  
77          // create a dataset...
78          DefaultCategoryDataset dataset = new DefaultCategoryDataset();
79  
80          // initialise the data...
81          Day d1 = new Day(12, SerialDate.JUNE, 2002);
82          Day d2 = new Day(14, SerialDate.JUNE, 2002);
83          Day d3 = new Day(15, SerialDate.JUNE, 2002);
84          Day d4 = new Day(10, SerialDate.JULY, 2002);
85          Day d5 = new Day(20, SerialDate.JULY, 2002);
86          Day d6 = new Day(22, SerialDate.AUGUST, 2002);
87  
88          dataset.setValue(new Long  (d1.getMiddleMillisecond()), "Series 1", "Requirement 1");
89          dataset.setValue(new Long  (d1.getMiddleMillisecond()), "Series 1", "Requirement 2");
90          dataset.setValue(new Long  (d2.getMiddleMillisecond()), "Series 1", "Requirement 3");
91          dataset.setValue(new Long  (d3.getMiddleMillisecond()), "Series 2", "Requirement 1");
92          dataset.setValue(new Long  (d4.getMiddleMillisecond()), "Series 2", "Requirement 3");
93          dataset.setValue(new Long  (d5.getMiddleMillisecond()), "Series 3", "Requirement 2");
94          dataset.setValue(new Long  (d6.getMiddleMillisecond()), "Series 1", "Requirement 4");
95  
96          // create the chart...
97          JFreeChart chart = ChartFactory.createBarChart(
98              "Event Frequency Demo",  // title
99              "Category",              // domain axis label
100             "Value",                 // range axis label
101             dataset,                 // data
102             PlotOrientation.HORIZONTAL,
103             true,                    // include legend
104             true,                    // tooltips
105             false                    // URLs
106         );
107 
108         // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART...
109 
110         // set the background color for the chart...
111         chart.setBackgroundPaint(new Color  (0xFF, 0xFF, 0xCC));
112 
113         StandardLegend legend = (StandardLegend) chart.getLegend();
114         legend.setDisplaySeriesShapes(true);
115 
116         // get a reference to the plot for further customisation...
117         CategoryPlot plot = chart.getCategoryPlot();
118         plot.setRangeAxis(new DateAxis("Date"));
119         CategoryItemLabelGenerator labelGenerator
120             = new StandardCategoryItemLabelGenerator(DateFormat.getDateInstance());
121         CategoryItemRenderer renderer = new LineAndShapeRenderer(LineAndShapeRenderer.SHAPES);
122         renderer.setItemLabelGenerator(labelGenerator);
123         plot.setRenderer(renderer);
124                                                   
125         // ****************************************************************************
126         // * COMMERCIAL SUPPORT / JFREECHART DEVELOPER GUIDE                          *
127         // * Please note that commercial support and documentation is available from: *
128         // *                                                                          *
129         // * http://www.object-refinery.com/jfreechart/support.html                   *
130         // *                                                                          *
131         // * This is not only a great service for developers, but is a VERY IMPORTANT *
132         // * source of funding for the JFreeChart project.  Please support us so that *
133         // * we can continue developing free software.                                *
134         // ****************************************************************************
135 
136         // OPTIONAL CUSTOMISATION COMPLETED.
137 
138         // add the chart to a panel...
139         ChartPanel chartPanel = new ChartPanel(chart);
140         chartPanel.setPreferredSize(new java.awt.Dimension  (500, 270));
141         setContentPane(chartPanel);
142 
143     }
144 
145     /**
146      * Starting point for the demonstration application.
147      *
148      * @param args  ignored.
149      */
150     public static void main(String  [] args) {
151 
152         EventFrequencyDemo demo = new EventFrequencyDemo("Event Frequency Demo");
153         demo.pack();
154         RefineryUtilities.centerFrameOnScreen(demo);
155         demo.setVisible(true);
156 
157     }
158 
159 }
160
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