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.] * * ------------------ * XYSeriesDemo2.java * ------------------ * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: XYSeriesDemo2.java,v 1.12 2004/04/26 19:12:04 taqua Exp $ * * Changes * ------- * 01-Oct-2002 : Version 1 (DG); * */ package org.jfree.chart.demo; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * Demo for {@link XYSeries}, where all the y values are the same. * */ public class XYSeriesDemo2 extends ApplicationFrame { /** * A demonstration application showing an {@link XYSeries} where all the y-values are the same. * * @param title the frame title. */ public XYSeriesDemo2(final String title) { super(title); final XYSeries series = new XYSeries("Flat Data"); series.add(1.0, 100.0); series.add(5.0, 100.0); series.add(4.0, 100.0); series.add(12.5, 100.0); series.add(17.3, 100.0); series.add(21.2, 100.0); series.add(21.9, 100.0); series.add(25.6, 100.0); series.add(30.0, 100.0); final XYSeriesCollection data = new XYSeriesCollection(series); final JFreeChart chart = ChartFactory.createXYLineChart("XY Series Demo 2", "X", "Y", data, PlotOrientation.VERTICAL, true, true, false); final XYPlot plot = (XYPlot) chart.getPlot(); final NumberAxis axis = (NumberAxis) plot.getRangeAxis(); axis.setAutoRangeIncludesZero(false); axis.setAutoRangeMinimumSize(1.0); 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 XYSeriesDemo2 demo = new XYSeriesDemo2("XY Series Demo 2"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }