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.] * * ------------------------ * CombinedXYPlotDemo3.java * ------------------------ * (C) Copyright 2003, 2004, by Object Refinery Limited. * * Original Author: David Gilbert (for Object Refinery Limited). * Contributor(s): -; * * $Id $ * * Changes * ------- * 03-Jul-2003 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.Color; import java.awt.Font; import java.awt.GradientPaint; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CombinedRangeXYPlot; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.chart.renderer.xy.XYBarRenderer; import org.jfree.chart.title.TextTitle; import org.jfree.data.time.MovingAverage; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A demonstration application showing how to create a combined chart using... * */ public class CombinedXYPlotDemo3 extends ApplicationFrame { /** * Constructs a new demonstration application. * * @param title the frame title. */ public CombinedXYPlotDemo3(final String title) { super(title); final JFreeChart chart = createCombinedChart(); final ChartPanel panel = new ChartPanel(chart, true, true, true, false, true); panel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(panel); } /** * Creates a combined XYPlot chart. * * @return the combined chart. */ private JFreeChart createCombinedChart() { // create a default chart based on some sample data... final TimeSeriesCollection dataset0 = new TimeSeriesCollection(); final TimeSeries eur = DemoDatasetFactory.createEURTimeSeries(); dataset0.addSeries(eur); final TimeSeriesCollection dataset1 = new TimeSeriesCollection(); final TimeSeries mav = MovingAverage.createMovingAverage(eur, "EUR/GBP (30 Day MA)", 30, 30); dataset1.addSeries(eur); dataset1.addSeries(mav); final TimeSeriesCollection dataset2 = new TimeSeriesCollection(); dataset2.addSeries(eur); JFreeChart chart = null; // make a common vertical axis for all the sub-plots final NumberAxis valueAxis = new NumberAxis("Value"); valueAxis.setAutoRangeIncludesZero(false); // override default // make a horizontally combined plot final CombinedRangeXYPlot parent = new CombinedRangeXYPlot(valueAxis); // add subplot 1... final XYPlot subplot1 = new XYPlot(dataset0, new DateAxis("Date 1"), null, new StandardXYItemRenderer()); parent.add(subplot1, 1); // add subplot 2... final XYPlot subplot2 = new XYPlot(dataset1, new DateAxis("Date 2"), null, new StandardXYItemRenderer()); parent.add(subplot2, 1); // add subplot 3... final XYPlot subplot3 = new XYPlot(dataset2, new DateAxis("Date 3"), null, new XYBarRenderer(0.20)); parent.add(subplot3, 1); // now make the top level JFreeChart chart = new JFreeChart("Demo Chart", JFreeChart.DEFAULT_TITLE_FONT, parent, true); // then customise it a little... final TextTitle subtitle = new TextTitle("This is a subtitle", new Font("SansSerif", Font.BOLD, 12)); chart.addSubtitle(subtitle); chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0, 1000, Color.blue)); 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 CombinedXYPlotDemo3 demo = new CombinedXYPlotDemo3("Combined XY Plot Demo 3"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }