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JFreeChart: Multiple Pie Chart Demo 2
/* ===========================================================
* 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.]
*
* --------------------------
* MultiplePieChartDemo2.java
* --------------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: MultiplePieChartDemo2.java,v 1.6 2004/04/26 19:12:00 taqua Exp $
*
* Changes
* -------
* 23-Jan-2003 : Version 1 (DG);
* 30-Jan-2004 : Renamed MultiPieChartDemo2 --> MultiplePieChartDemo2, and refactored to
* use the new MultiplePiePlot class (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.BasicStroke;
import java.awt.Color;
import java.awt.Font;
import java.text.NumberFormat;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartPanel;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.labels.StandardPieItemLabelGenerator;
import org.jfree.chart.plot.MultiplePiePlot;
import org.jfree.chart.plot.PiePlot;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
import org.jfree.util.TableOrder;
/**
* This example is similar to {@link MultiplePieChartDemo1}, but slices the dataset by column
* rather than by row.
*
*/
public class MultiplePieChartDemo2 extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public MultiplePieChartDemo2(final String title) {
super(title);
final CategoryDataset dataset = createDataset();
final JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart, true, true, true, false, true);
chartPanel.setPreferredSize(new java.awt.Dimension(600, 380));
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.com/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 double[][] data = new double[][] {
{3.0, 4.0, 3.0, 5.0},
{5.0, 7.0, 6.0, 8.0},
{5.0, 7.0, 3.0, 8.0},
{1.0, 2.0, 3.0, 4.0},
{2.0, 3.0, 2.0, 3.0}
};
final CategoryDataset dataset = DatasetUtilities.createCategoryDataset(
"Region ",
"Sales/Q",
data
);
return dataset;
}
/**
* Creates a sample chart with the given dataset.
*
* @param dataset the dataset.
*
* @return A sample chart.
*/
private JFreeChart createChart(final CategoryDataset dataset) {
final JFreeChart chart = ChartFactory.createMultiplePieChart(
"Multiple Pie Chart", // chart title
dataset, // dataset
TableOrder.BY_COLUMN,
true, // include legend
true,
false
);
final MultiplePiePlot plot = (MultiplePiePlot) chart.getPlot();
plot.setBackgroundPaint(Color.white);
plot.setOutlineStroke(new BasicStroke(1.0f));
final JFreeChart subchart = plot.getPieChart();
final PiePlot p = (PiePlot) subchart.getPlot();
p.setBackgroundPaint(null);
p.setOutlineStroke(null);
p.setLabelGenerator(new StandardPieItemLabelGenerator(
"{0} ({2})", NumberFormat.getNumberInstance(), NumberFormat.getPercentInstance()
));
p.setMaximumLabelWidth(0.35);
p.setLabelFont(new Font("SansSerif", Font.PLAIN, 9));
p.setInteriorGap(0.30);
return chart;
}
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final MultiplePieChartDemo2 demo = new MultiplePieChartDemo2("Multiple Pie Chart Demo 2");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
