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.] * * -------------------- * BarChart3DDemo2.java * -------------------- * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: BarChart3DDemo2.java,v 1.20 2004/04/26 19:11:53 taqua Exp $ * * Changes * ------- * 29-May-2002 : Version 1 (DG); * 10-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 05-Nov-2002 : Renamed HorizontalBarChart3DDemo.java (DG); * 13-May-2003 : Renamed BarChart3DDemo2.java (DG); * */ package j2se.jfreechart.barchart; 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.CategoryLabelPosition; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.CategoryLabelWidthType; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.text.TextBlockAnchor; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RectangleAnchor; import org.jfree.ui.RefineryUtilities; import org.jfree.ui.TextAnchor; import org.jfree.util.Log; import org.jfree.util.PrintStreamLogTarget; /** * A simple demonstration application showing how to create a horizontal 3D bar chart using data * from a {@link CategoryDataset}. * */ public class BarChart3DDemo2 extends ApplicationFrame { // **************************************************************************** // * 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 new demo. * * @param title the frame title. */ public BarChart3DDemo2(final String title) { super(title); // create the chart... final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(23.0, "Series 1", "London"); dataset.addValue(14.0, "Series 1", "New York"); dataset.addValue(14.0, "Series 1", "Istanbul"); dataset.addValue(14.0, "Series 1", "Cairo"); dataset.addValue(13.0, "Series 2", "London"); dataset.addValue(19.0, "Series 2", "New York"); dataset.addValue(19.0, "Series 2", "Istanbul"); dataset.addValue(19.0, "Series 2", "Cairo"); dataset.addValue(7.0, "Series 3", "London"); dataset.addValue(9.0, "Series 3", "New York"); dataset.addValue(9.0, "Series 3", "Istanbul"); dataset.addValue(9.0, "Series 3", "Cairo"); 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 chart. * * @param dataset the dataset. * * @return The chart. */ private JFreeChart createChart(final CategoryDataset dataset) { final JFreeChart chart = ChartFactory.createBarChart3D("3D Bar Chart Demo 2", // chart title "Category", // domain axis label "Value", // range axis label dataset, // data PlotOrientation.HORIZONTAL, // orientation true, // include legend true, // tooltips false // urls ); final CategoryPlot plot = chart.getCategoryPlot(); plot.setForegroundAlpha(1.0f); // left align the category labels... final CategoryAxis axis = plot.getDomainAxis(); final CategoryLabelPositions p = axis.getCategoryLabelPositions(); final CategoryLabelPosition left = new CategoryLabelPosition(RectangleAnchor.LEFT, TextBlockAnchor.CENTER_LEFT, TextAnchor.CENTER_LEFT, 0.0, CategoryLabelWidthType.RANGE, 0.30f); axis.setCategoryLabelPositions(CategoryLabelPositions.replaceLeftPosition(p, left)); return chart; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { Log.getInstance().addTarget(new PrintStreamLogTarget()); final BarChart3DDemo2 demo = new BarChart3DDemo2("3D Bar Chart Demo 2"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }