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Java > Open Source Codes > org > jfree > chart > demo > ScatterPlotDemo2


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  * ScatterPlotDemo2.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: ScatterPlotDemo2.java,v 1.6 2003/11/28 10:57:34 mungady Exp $
31  *
32  * Changes
33  * -------
34  * 14-Oct-2002 : 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.NumberAxis;
44 import org.jfree.chart.plot.PlotOrientation;
45 import org.jfree.chart.plot.XYPlot;
46 import org.jfree.chart.renderer.XYDotRenderer;
47 import org.jfree.data.XYDataset;
48 import org.jfree.ui.ApplicationFrame;
49 import org.jfree.ui.RefineryUtilities;
50
51 /**
52  * A demo scatter plot.
53  *
54  * @author David Gilbert
55  */
56 public class ScatterPlotDemo2 extends ApplicationFrame {
57
58     /**
59      * A demonstration application showing a scatter plot.
60      *
61      * @param title the frame title.
62      */
63     public ScatterPlotDemo2(String JavaDoc title) {
64
65         super(title);
66         XYDataset dataset = new SampleXYDataset2();
67         JFreeChart chart = createChart(dataset);
68         ChartPanel chartPanel = new ChartPanel(chart);
69         chartPanel.setPreferredSize(new java.awt.Dimension JavaDoc(500, 270));
70         chartPanel.setVerticalAxisTrace(true);
71         chartPanel.setHorizontalAxisTrace(true);
72         chartPanel.setVerticalZoom(true);
73         chartPanel.setHorizontalZoom(true);
74         setContentPane(chartPanel);
75
76     }
77     
78     // ****************************************************************************
79 // * COMMERCIAL SUPPORT / JFREECHART DEVELOPER GUIDE *
80 // * Please note that commercial support and documentation is available from: *
81 // * *
82 // * http://www.object-refinery.com/jfreechart/support.html *
83 // * *
84 // * This is not only a great service for developers, but is a VERY IMPORTANT *
85 // * source of funding for the JFreeChart project. Please support us so that *
86 // * we can continue developing free software. *
87 // ****************************************************************************
88
89     /**
90      * Creates a chart.
91      *
92      * @param dataset the dataset.
93      *
94      * @return The chart.
95      */
96     private JFreeChart createChart(XYDataset dataset) {
97         JFreeChart chart = ChartFactory.createScatterPlot(
98             "Scatter Plot Demo",
99             "X", "Y", dataset,
100             PlotOrientation.HORIZONTAL,
101             true, // legend
102 false, // tooltips
103 false // urls
104 );
105         XYPlot plot = chart.getXYPlot();
106         plot.setRenderer(new XYDotRenderer());
107         NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
108         domainAxis.setAutoRangeIncludesZero(false);
109         return chart;
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         ScatterPlotDemo2 demo = new ScatterPlotDemo2("Scatter Plot Demo 2");
120         demo.pack();
121         RefineryUtilities.centerFrameOnScreen(demo);
122         demo.setVisible(true);
123
124     }
125
126 }
127
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