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


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  * SmallNumberDemo.java
24  * --------------------
25  * (C) Copyright 2003, by Object Refinery Limited.
26  *
27  * Original Author: David Gilbert (for Object Refinery Limited);
28  * Contributor(s): -;
29  *
30  * $Id: SmallNumberDemo.java,v 1.2 2003/11/28 10:57:36 mungady Exp $
31  *
32  * Changes
33  * -------
34  * 23-Sep-2003 : Version 1 (DG);
35  *
36  */
37
38 package org.jfree.chart.demo;
39
40 import org.jfree.chart.ChartFactory;
41 import org.jfree.chart.ChartPanel;
42 import org.jfree.chart.JFreeChart;
43 import org.jfree.chart.axis.StandardTickUnitSource;
44 import org.jfree.chart.plot.PlotOrientation;
45 import org.jfree.chart.plot.XYPlot;
46 import org.jfree.data.XYSeries;
47 import org.jfree.data.XYSeriesCollection;
48 import org.jfree.ui.ApplicationFrame;
49 import org.jfree.ui.RefineryUtilities;
50
51 /**
52  * A demo showing the use of very small numbers in a dataset.
53  *
54  * @author David Gilbert
55  */
56 public class SmallNumberDemo extends ApplicationFrame {
57
58     /**
59      * Creates a new demo instance.
60      *
61      * @param title the frame title.
62      */
63     public SmallNumberDemo(String JavaDoc title) {
64
65         super(title);
66         XYSeries series = new XYSeries("Small Numbers");
67         series.add(1.0E-5, 1.0E-16);
68         series.add(5.0E-5, 2.0E-12);
69         series.add(17.3E-5, 5.0E-7);
70         series.add(21.2E-5, 9.0E-6);
71         XYSeriesCollection data = new XYSeriesCollection(series);
72         JFreeChart chart = ChartFactory.createXYLineChart(
73             "Small Number Demo",
74             "X",
75             "Y",
76             data,
77             PlotOrientation.VERTICAL,
78             true,
79             true,
80             false
81         );
82         XYPlot plot = chart.getXYPlot();
83         plot.getDomainAxis().setStandardTickUnits(new StandardTickUnitSource());
84         plot.getRangeAxis().setStandardTickUnits(new StandardTickUnitSource());
85
86         ChartPanel chartPanel = new ChartPanel(chart);
87         chartPanel.setPreferredSize(new java.awt.Dimension JavaDoc(500, 270));
88         setContentPane(chartPanel);
89
90     }
91
92     // ****************************************************************************
93 // * COMMERCIAL SUPPORT / JFREECHART DEVELOPER GUIDE *
94 // * Please note that commercial support and documentation is available from: *
95 // * *
96 // * http://www.object-refinery.com/jfreechart/support.html *
97 // * *
98 // * This is not only a great service for developers, but is a VERY IMPORTANT *
99 // * source of funding for the JFreeChart project. Please support us so that *
100 // * we can continue developing free software. *
101 // ****************************************************************************
102
103     /**
104      * Starting point for the demonstration application.
105      *
106      * @param args ignored.
107      */
108     public static void main(String JavaDoc[] args) {
109
110         System.out.println("Min Double: " + Double.MIN_VALUE);
111         SmallNumberDemo demo = new SmallNumberDemo("Small Number Demo");
112         demo.pack();
113         RefineryUtilities.centerFrameOnScreen(demo);
114         demo.setVisible(true);
115
116     }
117
118 }
119
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