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.] * * -------------------------- * OverlaidBarChartDemo2.java * -------------------------- * (C) Copyright 2004, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: OverlaidBarChartDemo2.java,v 1.9 2004/06/02 09:48:24 mungady Exp $ * * Changes * ------- * 09-Jan-2004 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.BasicStroke; import java.awt.Color; 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.labels.StandardCategoryToolTipGenerator; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.DatasetRenderingOrder; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.chart.renderer.category.LevelRenderer; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * Another demo of an overlaid bar chart. */ public class OverlaidBarChartDemo2 extends ApplicationFrame { /** * Default constructor. * * @param title the frame title. */ public OverlaidBarChartDemo2(final String title) { super(title); final JFreeChart chart = createChart(); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(chartPanel); } /** * Creates a sample chart. * * @return A sample chart. */ private JFreeChart createChart() { // create the first dataset... DefaultCategoryDataset dataset1 = new DefaultCategoryDataset(); dataset1.addValue(1.0, "S1", "Category 1"); dataset1.addValue(4.0, "S1", "Category 2"); dataset1.addValue(3.0, "S1", "Category 3"); dataset1.addValue(5.0, "S1", "Category 4"); dataset1.addValue(5.0, "S1", "Category 5"); dataset1.addValue(5.0, "S2", "Category 1"); dataset1.addValue(7.0, "S2", "Category 2"); dataset1.addValue(6.0, "S2", "Category 3"); dataset1.addValue(8.0, "S2", "Category 4"); dataset1.addValue(4.0, "S2", "Category 5"); // create the first plot... final CategoryItemRenderer renderer = new BarRenderer(); renderer.setToolTipGenerator(new StandardCategoryToolTipGenerator()); final CategoryPlot plot = new CategoryPlot(); plot.setDataset(dataset1); plot.setRenderer(renderer); plot.setDomainAxis(new CategoryAxis("Category")); plot.setRangeAxis(new NumberAxis("Value")); plot.setOrientation(PlotOrientation.VERTICAL); plot.setRangeGridlinesVisible(true); plot.setDomainGridlinesVisible(true); DefaultCategoryDataset dataset2 = new DefaultCategoryDataset(); dataset2.addValue(6.0, "Prior 1", "Category 1"); dataset2.addValue(7.0, "Prior 1", "Category 2"); dataset2.addValue(2.0, "Prior 1", "Category 3"); dataset2.addValue(6.0, "Prior 1", "Category 4"); dataset2.addValue(6.0, "Prior 1", "Category 5"); dataset2.addValue(4.0, "Prior 2", "Category 1"); dataset2.addValue(2.0, "Prior 2", "Category 2"); dataset2.addValue(1.0, "Prior 2", "Category 3"); dataset2.addValue(3.0, "Prior 2", "Category 4"); dataset2.addValue(2.0, "Prior 2", "Category 5"); final CategoryItemRenderer renderer2 = new LevelRenderer(); renderer2.setSeriesStroke(0, new BasicStroke(2.0f)); renderer2.setSeriesStroke(1, new BasicStroke(2.0f)); plot.setDataset(1, dataset2); plot.setRenderer(1, renderer2); plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD); plot.setBackgroundPaint(Color.lightGray); plot.setRangeGridlinePaint(Color.white); final JFreeChart chart = new JFreeChart(plot); chart.setTitle("Overlaid Bar Chart"); // chart.setLegend(new StandardLegend()); chart.setBackgroundPaint(Color.white); 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.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. * // **************************************************************************** /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final OverlaidBarChartDemo2 demo = new OverlaidBarChartDemo2("Overlaid Bar Chart Demo 2"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }