Java tutorial
/* =========================================================== * 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.] * * ------------------ * PieChartDemo7.java * ------------------ * (C) Copyright 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: PieChartDemo7.java,v 1.1 2004/05/26 13:02:03 mungady Exp $ * * Changes * ------- * 25-May-2004 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.Dimension; import java.awt.GridLayout; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PiePlot; import org.jfree.chart.plot.PiePlot3D; import org.jfree.data.general.DefaultPieDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A demo showing four pie charts. */ public class PieChartDemo7 extends ApplicationFrame { /** * Creates a new demo instance. * * @param title the frame title. */ public PieChartDemo7(String title) { super(title); JPanel panel = new JPanel(new GridLayout(2, 2)); DefaultPieDataset dataset = new DefaultPieDataset(); dataset.setValue("Section 1", 23.3); dataset.setValue("Section 2", 56.5); dataset.setValue("Section 3", 43.3); dataset.setValue("Section 4", 11.1); JFreeChart chart1 = ChartFactory.createPieChart("Chart 1", dataset, false, false, false); JFreeChart chart2 = ChartFactory.createPieChart("Chart 2", dataset, false, false, false); PiePlot plot2 = (PiePlot) chart2.getPlot(); plot2.setCircular(false); JFreeChart chart3 = ChartFactory.createPieChart3D("Chart 3", dataset, false, false, false); PiePlot3D plot3 = (PiePlot3D) chart3.getPlot(); plot3.setForegroundAlpha(0.6f); plot3.setCircular(true); JFreeChart chart4 = ChartFactory.createPieChart3D("Chart 4", dataset, false, false, false); PiePlot3D plot4 = (PiePlot3D) chart4.getPlot(); plot4.setForegroundAlpha(0.6f); panel.add(new ChartPanel(chart1)); panel.add(new ChartPanel(chart2)); panel.add(new ChartPanel(chart3)); panel.add(new ChartPanel(chart4)); panel.setPreferredSize(new Dimension(800, 600)); setContentPane(panel); } /** * The starting point for the demo. * * @param args ignored. */ public static void main(String[] args) { PieChartDemo7 demo = new PieChartDemo7("Pie Chart Demo 7"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }