JFreeChart ：覆盖条形图演示
/* =========================================================== * 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.] * * ------------------------- * OverlaidBarChartDemo.java * ------------------------- * (C) Copyright 2002-2004, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: OverlaidBarChartDemo.java,v 1.36 2004/06/02 09:48:24 mungady Exp $ * * Changes * ------- * 20-Sep-2002 : Version 1 (DG); * 11-Oct-2002 : Added tooltips, modified series colors, centered frame on screen (DG); * 11-Feb-2003 : Fixed bug where category labels were not showing on the axis (DG); * 08-Sep-2003 : Bug fix (DG); * 02-Jun-2004 : Set the rendering order (DG); * */package org.jfree.chart.demo;import org.jfree.chart.ChartPanel;import org.jfree.chart.JFreeChart;import org.jfree.chart.axis.CategoryAxis;import org.jfree.chart.axis.CategoryLabelPositions;import org.jfree.chart.axis.NumberAxis;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.BarRenderer;import org.jfree.chart.renderer.category.CategoryItemRenderer;import org.jfree.chart.renderer.category.LineAndShapeRenderer;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 bar chart overlaid * with a line chart. */public class OverlaidBarChartDemo extends ApplicationFrame { /** * Default constructor. * * @param title the frame title. */ public OverlaidBarChartDemo(final String title) { super(title); // 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(7.0, "S1", "Category 6"); dataset1.addValue(7.0, "S1", "Category 7"); dataset1.addValue(8.0, "S1", "Category 8"); 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"); dataset1.addValue(4.0, "S2", "Category 6"); dataset1.addValue(2.0, "S2", "Category 7"); dataset1.addValue(1.0, "S2", "Category 8"); // create the first renderer... // final CategoryLabelGenerator generator = new StandardCategoryLabelGenerator(); final CategoryItemRenderer renderer = new BarRenderer(); // renderer.setLabelGenerator(generator); renderer.setItemLabelsVisible(true); 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); // now create the second dataset and renderer... DefaultCategoryDataset dataset2 = new DefaultCategoryDataset(); dataset2.addValue(9.0, "T1", "Category 1"); dataset2.addValue(7.0, "T1", "Category 2"); dataset2.addValue(2.0, "T1", "Category 3"); dataset2.addValue(6.0, "T1", "Category 4"); dataset2.addValue(6.0, "T1", "Category 5"); dataset2.addValue(9.0, "T1", "Category 6"); dataset2.addValue(5.0, "T1", "Category 7"); dataset2.addValue(4.0, "T1", "Category 8"); final CategoryItemRenderer renderer2 = new LineAndShapeRenderer(); plot.setDataset(1, dataset2); plot.setRenderer(1, renderer2); // create the third dataset and renderer... final ValueAxis rangeAxis2 = new NumberAxis("Axis 2"); plot.setRangeAxis(1, rangeAxis2); DefaultCategoryDataset dataset3 = new DefaultCategoryDataset(); dataset3.addValue(94.0, "R1", "Category 1"); dataset3.addValue(75.0, "R1", "Category 2"); dataset3.addValue(22.0, "R1", "Category 3"); dataset3.addValue(74.0, "R1", "Category 4"); dataset3.addValue(83.0, "R1", "Category 5"); dataset3.addValue(9.0, "R1", "Category 6"); dataset3.addValue(23.0, "R1", "Category 7"); dataset3.addValue(98.0, "R1", "Category 8"); plot.setDataset(2, dataset3); final CategoryItemRenderer renderer3 = new LineAndShapeRenderer(); plot.setRenderer(2, renderer3); plot.mapDatasetToRangeAxis(2, 1); // change the rendering order so the primary dataset appears "behind" the // other datasets... plot.setDatasetRenderingOrder(DatasetRenderingOrder.FORWARD); plot.getDomainAxis().setCategoryLabelPositions(CategoryLabelPositions.UP_45); final JFreeChart chart = new JFreeChart(plot); chart.setTitle("Overlaid Bar Chart"); // chart.setLegend(new StandardLegend()); // 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. * // **************************************************************************** /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final OverlaidBarChartDemo demo = new OverlaidBarChartDemo("Overlaid Bar Chart Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); }}?