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.] * * ---------------------------- * StatisticalBarChartDemo.java * ---------------------------- * (C) Copyright 2002-2004, by Pascal Collet and Contributors. * * Original Author: Pascal Collet; * Contributor(s): David Gilbert (for Object Refinery Limited); * * $Id: StatisticalBarChartDemo.java,v 1.15 2004/05/07 15:51:37 mungady Exp $ * * Changes * ------- * 21-Aug-2002 : Version 1, contributed by Pascal Collet (DG); * 11-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 05-Feb-2003 : Updated for documentation (DG); * */ package org.aksw.iguana.reborn.charts.datasets; import java.awt.Font; import java.io.File; import java.io.FileNotFoundException; import org.aksw.iguana.reborn.ChartUtilities2; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.chart.renderer.category.StatisticalBarRenderer; import org.jfree.data.statistics.DefaultStatisticalCategoryDataset; import org.jfree.data.statistics.StatisticalCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import com.itextpdf.text.DocumentException; /** * Demonstration of the statistical bar graph. * * @author Pascal Collet */ public class StatisticalBarChartDemo extends ApplicationFrame { /** * Creates a new demo. * * @param title * the frame title. * @throws DocumentException * @throws FileNotFoundException */ public StatisticalBarChartDemo(final String title) throws FileNotFoundException, DocumentException { super(title); final StatisticalCategoryDataset dataset = createDataset(); final CategoryAxis xAxis = new CategoryAxis("Type"); xAxis.setLowerMargin(0.01d); // percentage of space before first bar xAxis.setUpperMargin(0.01d); // percentage of space after last bar xAxis.setCategoryMargin(0.05d); // percentage of space between // categories final ValueAxis yAxis = new NumberAxis("Value"); // define the plot final CategoryItemRenderer renderer = new StatisticalBarRenderer(); final CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer); final JFreeChart chart = new JFreeChart("Statistical Bar Chart Demo", new Font("Helvetica", Font.BOLD, 14), plot, true); ChartUtilities2.saveChartAsPDF(new File("/home/raven/tmp/foo.pdf"), chart, 1000, 300); // chart.setBackgroundPaint(Color.white); // add the chart to a panel... 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.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 The dataset. */ private StatisticalCategoryDataset createDataset() { final DefaultStatisticalCategoryDataset result = new DefaultStatisticalCategoryDataset(); result.add(32.5, 17.9, "Series 1", "Type 1"); result.add(27.8, 11.4, "Series 1", "Type 2"); result.add(29.3, 14.4, "Series 1", "Type 3"); result.add(37.9, 10.3, "Series 1", "Type 4"); result.add(22.9, 7.9, "Series 2", "Type 1"); result.add(21.8, 18.4, "Series 2", "Type 2"); result.add(19.3, 12.4, "Series 2", "Type 3"); result.add(30.3, 20.7, "Series 2", "Type 4"); result.add(12.5, 10.9, "Series 3", "Type 1"); result.add(24.8, 7.4, "Series 3", "Type 2"); result.add(19.3, 13.4, "Series 3", "Type 3"); result.add(17.1, 10.6, "Series 3", "Type 4"); return result; } /** * For testing from the command line. * * @param args * ignored. * @throws DocumentException * @throws FileNotFoundException */ public static void main(final String[] args) throws FileNotFoundException, DocumentException { final StatisticalBarChartDemo demo = new StatisticalBarChartDemo("Statistical Bar Chart Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }