Java/Chart/Bar Chart 3D

JFreeChart: Bar Chart 3D Demo 3 with item labels displayed

   <source lang="java">

/* ===========================================================

* JFreeChart : a free chart library for the Java(tm) platform
* ===========================================================
*
* (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.
*
* Project Info:  http://www.jfree.org/jfreechart/index.html
*
* 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.
*
* [Java is a trademark or registered trademark of Sun Microsystems, Inc. 
* in the United States and other countries.]
*
* --------------------
* BarChart3DDemo3.java
* --------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   -;
*
* $Id: BarChart3DDemo3.java,v 1.9 2004/04/26 19:11:53 taqua Exp $
*
* Changes
* -------
* 24-Nov-2003 : Version 1 (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.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /**

* This demonstration shows a 3D bar chart with item labels displayed.
*
*/

public class BarChart3DDemo3 extends ApplicationFrame {

   /**
    * Creates a new demo.
    *
    * @param title  the frame title.
    */
   public BarChart3DDemo3(final String title) {
       super(title);
       
       final CategoryDataset dataset = createDataset();
       final JFreeChart chart = createChart(dataset);
       final ChartPanel chartPanel = new ChartPanel(chart);
       chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
       setContentPane(chartPanel);
   }
   // ****************************************************************************
   // * JFREECHART DEVELOPER GUIDE                                               *
   // * The JFreeChart Developer Guide, written by David Gilbert, is available   *
   // * to purchase from Object Refinery Limited:                                *
   // *                                                                          *
   // * http://www.object-refinery.ru/jfreechart/guide.html                     *
   // *                                                                          *
   // * Sales are used to provide funding for the JFreeChart project - please    * 
   // * support us so that we can continue developing free software.             *
   // ****************************************************************************
   
   /**
    * Creates a sample dataset.
    *
    * @return a sample dataset.
    */
  private CategoryDataset createDataset() {
       final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
       dataset.addValue(25.0, "Series 1", "Category 1");   
       dataset.addValue(34.0, "Series 1", "Category 2");   
       dataset.addValue(19.0, "Series 2", "Category 1");   
       dataset.addValue(29.0, "Series 2", "Category 2");   
       dataset.addValue(41.0, "Series 3", "Category 1");   
       dataset.addValue(33.0, "Series 3", "Category 2");   
       return dataset;
   }
   
   /**
    * Creates a chart.
    * 
    * @param dataset  the dataset.
    * 
    * @return The chart.
    */
   private JFreeChart createChart(final CategoryDataset dataset) {
       
       final JFreeChart chart = ChartFactory.createBarChart3D(
           "3D Bar Chart Demo",      // chart title
           "Category",               // domain axis label
           "Value",                  // range axis label
           dataset,                  // data
           PlotOrientation.VERTICAL, // orientation
           true,                     // include legend
           true,                     // tooltips
           false                     // urls
       );
       final CategoryPlot plot = chart.getCategoryPlot();
       final CategoryAxis axis = plot.getDomainAxis();
       axis.setCategoryLabelPositions(
           CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 8.0)
       );
       
       final CategoryItemRenderer renderer = plot.getRenderer();
       renderer.setItemLabelsVisible(true);
       final BarRenderer r = (BarRenderer) renderer;
       r.setMaxBarWidth(0.05);
       
       return chart;
   }
   
   
   /**
    * Starting point for the demonstration application.
    *
    * @param args  ignored.
    */
   public static void main(final String[] args) {
       final BarChart3DDemo3 demo = new BarChart3DDemo3("3D Bar Chart Demo 3");
       demo.pack();
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
   }

}

      </source>