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.] * * -------------------- * XYAreaChartDemo.java * -------------------- * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: XYAreaChartDemo.java,v 1.8 2004/04/26 19:12:04 taqua Exp $ * * Changes * ------- * 03-Apr-2002 : Version 1 (DG); * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG); * 10-Oct-2002 : Renamed AreaChartDemo --> AreaXYChartDemo (DG); * 10-Jun-2003 : Modified to handle plot orientation (DG); * 31-Jul-2003 : Renamed AreaXYChartDemo --> XYAreaChartDemo (DG); * */ package org.jfree.chart.demo; import java.awt.Color; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYDataset; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A simple demonstration application showing how to create an area chart. * */ public class XYAreaChartDemo extends ApplicationFrame { /** * Creates a new demo. * * @param title the frame title. */ public XYAreaChartDemo(final String title) { super(title); final XYSeries series1 = new XYSeries("Random 1"); series1.add(new Integer(1), new Double(500.2)); series1.add(new Integer(2), new Double(694.1)); series1.add(new Integer(3), new Double(-734.4)); series1.add(new Integer(4), new Double(453.2)); series1.add(new Integer(5), new Double(500.2)); series1.add(new Integer(6), new Double(300.7)); series1.add(new Integer(7), new Double(734.4)); series1.add(new Integer(8), new Double(453.2)); final XYSeries series2 = new XYSeries("Random 2"); series2.add(new Integer(1), new Double(700.2)); series2.add(new Integer(2), new Double(534.1)); series2.add(new Integer(3), new Double(323.4)); series2.add(new Integer(4), new Double(125.2)); series2.add(new Integer(5), new Double(653.2)); series2.add(new Integer(6), new Double(432.7)); series2.add(new Integer(7), new Double(564.4)); series2.add(new Integer(8), new Double(322.2)); final XYSeriesCollection dataset = new XYSeriesCollection(series1); dataset.addSeries(series2); final JFreeChart chart = createChart(dataset); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(chartPanel); } /** * Creates a chart. * * @param dataset the dataset. * * @return A chart. */ private JFreeChart createChart(final XYDataset dataset) { final JFreeChart chart = ChartFactory.createXYAreaChart("XY Area Chart Demo", "Domain (X)", "Range (Y)", dataset, PlotOrientation.VERTICAL, true, // legend true, // tool tips false // URLs ); chart.setBackgroundPaint(Color.white); final XYPlot plot = chart.getXYPlot(); //plot.setOutlinePaint(Color.black); plot.setBackgroundPaint(Color.lightGray); plot.setForegroundAlpha(0.65f); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); final ValueAxis domainAxis = plot.getDomainAxis(); domainAxis.setTickMarkPaint(Color.black); domainAxis.setLowerMargin(0.0); domainAxis.setUpperMargin(0.0); final ValueAxis rangeAxis = plot.getRangeAxis(); rangeAxis.setTickMarkPaint(Color.black); 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 XYAreaChartDemo demo = new XYAreaChartDemo("XY Area Chart Demo"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }