barchart3ddemo2.java

Web图形化的Java库

/* ======================================
 * JFreeChart : a free Java chart library
 * ======================================
 *
 * Project Info:  http://www.jfree.org/jfreechart/index.html
 * Project Lead:  David Gilbert ([e-mail]);
 *
 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors.
 *
 * This library is free software; you can redistribute it and/or modify it under the terms
 * of the GNU Lesser General Public License as published by the Free Software Foundation;
 * either version 2.1 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
 * See the GNU Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License along with this
 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * --------------------
 * BarChart3DDemo2.java
 * --------------------
 * (C) Copyright 2002, 2003, by Object Refinery Limited and Contributors.
 *
 * Original Author:  David Gilbert (for Object Refinery Limited);
 * Contributor(s):   -;
 *
 * $Id: BarChart3DDemo2.java,v 1.4 2003/06/30 12:14:34 mungady Exp $
 *
 * Changes
 * -------
 * 29-May-2002 : Version 1 (DG);
 * 10-Oct-2002 : Fixed errors reported by Checkstyle (DG);
 * 05-Nov-2002 : Renamed HorizontalBarChart3DDemo.java (DG);
 * 13-May-2003 : Renamed BarChart3DDemo2.java (DG);
 *
 */

package org.jfree.chart.demo;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.CategoryDataset;
import org.jfree.data.DefaultCategoryDataset;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;

/**
 * A simple demonstration application showing how to create a horizontal 3D bar chart using data
 * from a {@link CategoryDataset}.
 *
 * @author David Gilbert
 */
public class BarChart3DDemo2 extends ApplicationFrame {

    /**
     * Creates a new demo.
     *
     * @param title  the frame title.
     */
    public BarChart3DDemo2(String title) {

        super(title);
        // create the chart...
        DefaultCategoryDataset dataset = new DefaultCategoryDataset();
        dataset.addValue(23.0, "Series 1", "Group 1");
        dataset.addValue(14.0, "Series 1", "Group 2");
        dataset.addValue(13.0, "Series 2", "Group 1");
        dataset.addValue(19.0, "Series 2", "Group 2");
        dataset.addValue(7.0, "Series 3", "Group 1");
        dataset.addValue(9.0, "Series 3", "Group 2");
        
        JFreeChart chart = createChart(dataset);

        // add the chart to a panel...
        ChartPanel chartPanel = new ChartPanel(chart);
        chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
        setContentPane(chartPanel);

    }

    /**
     * Creates a chart.
     * 
     * @param dataset  the dataset.
     * 
     * @return The chart.
     */
    private JFreeChart createChart(CategoryDataset dataset) {
        JFreeChart chart = ChartFactory.createBarChart3D(
            "3D Bar Chart Demo 2",       // chart title
            "Category",                  // domain axis label
            "Value",                     // range axis label
            dataset,                     // data
            PlotOrientation.HORIZONTAL,  // orientation
            true,                        // include legend
            true,                        // tooltips
            false                        // urls
        );

        CategoryPlot plot = chart.getCategoryPlot();
        plot.setForegroundAlpha(1.0f);

        return chart;        
    }
    
    /**
     * Starting point for the demonstration application.
     *
     * @param args  ignored.
     */
    public static void main(String[] args) {

        BarChart3DDemo2 demo = new BarChart3DDemo2("3D Bar Chart Demo 2");
        demo.pack();
        RefineryUtilities.centerFrameOnScreen(demo);
        demo.setVisible(true);

    }

}