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.] * * --------------------- * ThermometerDemo2.java * --------------------- * (C) Copyright 2002-2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: ThermometerDemo2.java,v 1.8 2004/04/26 19:12:03 taqua Exp $ * * Changes * ------- * 17-Sep-2002 : Version 1 (DG); * 11-Oct-2002 : Fixed errors reported by Checkstyle (DG); * */ package org.jfree.chart.demo; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Insets; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.ThermometerPlot; import org.jfree.data.general.DefaultValueDataset; import org.jfree.ui.ApplicationFrame; /** * A simple demonstration application showing how to create a thermometer. * */ public class ThermometerDemo2 extends ApplicationFrame { /** * Creates a new demo. * * @param title the frame title. */ public ThermometerDemo2(final String title) { super(title); // create a dataset... final DefaultValueDataset dataset = new DefaultValueDataset(new Double(43.0)); // create the chart... final ThermometerPlot plot = new ThermometerPlot(dataset); final JFreeChart chart = new JFreeChart("Thermometer Demo 2", // chart title JFreeChart.DEFAULT_TITLE_FONT, plot, // plot false); // include legend // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // plot.setInsets(new Insets(5, 5, 5, 5)); //plot.setRangeInfo(ThermometerPlot.NORMAL, 0.0, 55.0, 0.0, 100.0); //plot.setRangeInfo(ThermometerPlot.WARNING, 55.0, 75.0, 0.0, 100.0); //plot.setRangeInfo(ThermometerPlot.CRITICAL, 75.0, 100.0, 0.0, 100.0); plot.setThermometerStroke(new BasicStroke(2.0f)); plot.setThermometerPaint(Color.lightGray); // OPTIONAL CUSTOMISATION COMPLETED. // add the chart to a panel... final ChartPanel chartPanel = new ChartPanel(chart); 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 ThermometerDemo2 demo = new ThermometerDemo2("Thermometer Demo 2"); demo.pack(); demo.setVisible(true); } }