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.] * * ------------------ * DualAxisDemo4.java * ------------------ * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: DualAxisDemo4.java,v 1.12 2004/04/29 07:54:56 mungady Exp $ * * Changes * ------- * 04-Jul-2003 : Version 1 (DG); * */ import java.awt.Color; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.AxisLocation; import org.jfree.chart.axis.NumberAxis3D; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.DatasetRenderingOrder; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.CategoryItemRenderer; import org.jfree.chart.renderer.category.LineAndShapeRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A simple demonstration application showing how to create a dual axis chart based on data * from two {@link CategoryDataset} instances. * */ public class DualAxisDemo4 extends ApplicationFrame { /** * Creates a new demo instance. * * @param title the frame title. */ public DualAxisDemo4(final String title) { super(title); final CategoryDataset dataset1 = createDataset1(); // create the chart... final JFreeChart chart = ChartFactory.createBarChart3D("Dual Axis Chart", // chart title "Category", // domain axis label "Value", // range axis label dataset1, // data PlotOrientation.VERTICAL, true, // include legend true, false); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // set the background color for the chart... chart.setBackgroundPaint(new Color(0xCC, 0xFF, 0xCC)); // chart.getLegend().setAnchor(Legend.SOUTH); // get a reference to the plot for further customisation... final CategoryPlot plot = chart.getCategoryPlot(); plot.setDomainAxisLocation(AxisLocation.BOTTOM_OR_LEFT); plot.setRangeAxisLocation(AxisLocation.TOP_OR_LEFT); final CategoryItemRenderer renderer1 = plot.getRenderer(); renderer1.setSeriesPaint(0, Color.red); renderer1.setSeriesPaint(1, Color.yellow); renderer1.setSeriesPaint(2, Color.green); final CategoryDataset dataset2 = createDataset2(); final ValueAxis axis2 = new NumberAxis3D("Secondary"); plot.setRangeAxis(1, axis2); plot.setDataset(1, dataset2); plot.mapDatasetToRangeAxis(1, 1); final CategoryItemRenderer renderer2 = new LineAndShapeRenderer(); renderer2.setSeriesPaint(0, Color.blue); plot.setRenderer(1, renderer2); plot.setDatasetRenderingOrder(DatasetRenderingOrder.REVERSE); // OPTIONAL CUSTOMISATION COMPLETED. // 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 CategoryDataset createDataset1() { // row keys... final String series1 = "First"; final String series2 = "Second"; final String series3 = "Third"; // column keys... final String category1 = "Category 1"; final String category2 = "Category 2"; final String category3 = "Category 3"; final String category4 = "Category 4"; final String category5 = "Category 5"; // create the dataset... final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(1.0, series1, category1); dataset.addValue(4.0, series1, category2); dataset.addValue(3.0, series1, category3); dataset.addValue(5.0, series1, category4); dataset.addValue(5.0, series1, category5); dataset.addValue(5.0, series2, category1); dataset.addValue(7.0, series2, category2); dataset.addValue(6.0, series2, category3); dataset.addValue(8.0, series2, category4); dataset.addValue(4.0, series2, category5); dataset.addValue(4.0, series3, category1); dataset.addValue(3.0, series3, category2); dataset.addValue(2.0, series3, category3); dataset.addValue(3.0, series3, category4); dataset.addValue(6.0, series3, category5); return dataset; } /** * Creates a sample dataset. * * @return The dataset. */ private CategoryDataset createDataset2() { // row keys... final String series1 = "Fourth"; // column keys... final String category1 = "Category 1"; final String category2 = "Category 2"; final String category3 = "Category 3"; final String category4 = "Category 4"; final String category5 = "Category 5"; // create the dataset... final DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(15.0, series1, category1); dataset.addValue(24.0, series1, category2); dataset.addValue(31.0, series1, category3); dataset.addValue(25.0, series1, category4); dataset.addValue(56.0, series1, category5); return dataset; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final DualAxisDemo4 demo = new DualAxisDemo4("Dual Axis Demo 4"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }