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Java > Open Source Codes > org > jfree > chart > demo > PieChartDemo2


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  * PieChartDemo2.java
24  * ------------------
25  * (C) Copyright 2003, by Object Refinery Limited and Contributors.
26  *
27  * Original Author: David Gilbert (for Object Refinery Limited);
28  * Contributor(s): -;
29  *
30  * $Id: PieChartDemo2.java,v 1.6 2003/11/28 10:57:36 mungady Exp $
31  *
32  * Changes
33  * -------
34  * 05-Feb-2003 : Version 1 (DG);
35  *
36  */
37
38 package org.jfree.chart.demo;
39
40 import java.awt.Color JavaDoc;
41
42 import org.jfree.chart.ChartFactory;
43 import org.jfree.chart.ChartPanel;
44 import org.jfree.chart.JFreeChart;
45 import org.jfree.chart.labels.StandardPieItemLabelGenerator;
46 import org.jfree.chart.plot.PiePlot;
47 import org.jfree.data.DefaultPieDataset;
48 import org.jfree.ui.ApplicationFrame;
49 import org.jfree.ui.RefineryUtilities;
50
51 /**
52  * A simple demonstration application showing how to create a pie chart using data from a
53  * {@link DefaultPieDataset}. This demo also shows an "exploded" section in the chart.
54  *
55  * @author David Gilbert
56  */
57 public class PieChartDemo2 extends ApplicationFrame {
58
59     /**
60      * Default constructor.
61      *
62      * @param title the frame title.
63      */
64     public PieChartDemo2(String JavaDoc title) {
65
66         super(title);
67
68         // create a dataset...
69 DefaultPieDataset data = new DefaultPieDataset();
70         data.setValue("One", new Double JavaDoc(43.2));
71         data.setValue("Two", new Double JavaDoc(10.0));
72         data.setValue("Three", new Double JavaDoc(27.5));
73         data.setValue("Four", new Double JavaDoc(17.5));
74         data.setValue("Five", new Double JavaDoc(11.0));
75         data.setValue("Six", new Double JavaDoc(19.4));
76
77         // create the chart...
78 JFreeChart chart = ChartFactory.createPieChart("Pie Chart Demo 2", // chart title
79 data, // data
80 true, // include legend
81 true,
82                                                        false
83                                                        );
84
85         // set the background color for the chart...
86 chart.setBackgroundPaint(Color.yellow);
87         PiePlot plot = (PiePlot) chart.getPlot();
88         plot.setSectionLabelType(PiePlot.NAME_AND_PERCENT_LABELS);
89         plot.setNoDataMessage("No data available");
90         plot.setItemLabelGenerator(new StandardPieItemLabelGenerator());
91         plot.setRadius(0.70);
92         plot.setExplodePercent(1, 1.00);
93
94         // add the chart to a panel...
95 ChartPanel chartPanel = new ChartPanel(chart);
96         chartPanel.setPreferredSize(new java.awt.Dimension JavaDoc(500, 270));
97         setContentPane(chartPanel);
98
99     }
100
101     // ****************************************************************************
102 // * COMMERCIAL SUPPORT / JFREECHART DEVELOPER GUIDE *
103 // * Please note that commercial support and documentation is available from: *
104 // * *
105 // * http://www.object-refinery.com/jfreechart/support.html *
106 // * *
107 // * This is not only a great service for developers, but is a VERY IMPORTANT *
108 // * source of funding for the JFreeChart project. Please support us so that *
109 // * we can continue developing free software. *
110 // ****************************************************************************
111
112     /**
113      * Starting point for the demonstration application.
114      *
115      * @param args ignored.
116      */
117     public static void main(String JavaDoc[] args) {
118
119         PieChartDemo2 demo = new PieChartDemo2("Pie Chart Demo 2");
120         demo.pack();
121         RefineryUtilities.centerFrameOnScreen(demo);
122         demo.setVisible(true);
123
124     }
125
126 }
127
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