Java/Chart/Bar Chart 3D Vertical — различия между версиями

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Текущая версия на 09:52, 1 июня 2010

JFreeChart: Vertical Bar Chart 3D Demo 1

   <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.]
*
* --------------------
* BarChart3DDemo1.java
* --------------------
* (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   -;
*
* $Id: BarChart3DDemo1.java,v 1.17 2004/04/26 19:11:53 taqua Exp $
*
* Changes
* -------
* 29-May-2002 : Version 1 (DG);
* 11-Oct-2002 : Renamed VerticalBar3DDemo --> VerticalBarChart3DDemo (DG);
* 13-May-2003 : Renamed VerticalBarChart3DDemo --> BarChart3DDemo1 (DG);
* 24-Nov-2003 : Copied dataset creation code into this demo (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.BarRenderer3D; import org.jfree.data.category.CategoryDataset; import org.jfree.data.general.DatasetUtilities; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /**

* A simple demonstration application showing how to create a vertical 3D bar chart using data
* from a {@link CategoryDataset}.
*
*/

public class BarChart3DDemo1 extends ApplicationFrame {

   /**
    * Creates a new demo.
    *
    * @param title  the frame title.
    */
   public BarChart3DDemo1(final String title) {
       super(title);
       
       final CategoryDataset dataset = createDataset();
       final JFreeChart chart = createChart(dataset);
       // add the chart to a panel...
       final ChartPanel chartPanel = new ChartPanel(chart);
       chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
       setContentPane(chartPanel);
   }
   /**
    * Creates a sample dataset.
    *
    * @return a sample dataset.
    */
  private CategoryDataset createDataset() {
       final double[][] data = new double[][]
           {{10.0, 4.0, 15.0, 14.0},
            {-5.0, -7.0, 14.0, -3.0},
            {6.0, 17.0, -12.0, 7.0},
            {7.0, 15.0, 11.0, 0.0},
            {-8.0, -6.0, 10.0, -9.0},
            {9.0, 8.0, 0.0, 6.0},
            {-10.0, 9.0, 7.0, 7.0},
            {11.0, 13.0, 9.0, 9.0},
            {-3.0, 7.0, 11.0, -10.0}};
            
       return DatasetUtilities.createCategoryDataset("Series ", "Category ", data);
   }
   
   /**
    * 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 BarRenderer3D renderer = (BarRenderer3D) plot.getRenderer();
       renderer.setDrawBarOutline(false);
       
       return chart;
   }
   
   // ****************************************************************************
   // * 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.             *
   // ****************************************************************************
   
   /**
    * Starting point for the demonstration application.
    *
    * @param args  ignored.
    */
   public static void main(final String[] args) {
       final BarChart3DDemo1 demo = new BarChart3DDemo1("3D Bar Chart Demo 1");
       demo.pack();
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
   }

}

      </source>
   
  
 
  



Vertical bars with a 3D effect: representing data from a Category Data set