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.] * * --------------------- * TimeSeriesDemo12.java * --------------------- * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: TimeSeriesDemo12.java,v 1.7 2004/04/26 19:12:03 taqua Exp $ * * Changes * ------- * 07-Dec-2003 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.BasicStroke; import java.awt.Color; import java.text.SimpleDateFormat; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.StandardXYItemRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.data.time.Minute; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.XYDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import org.jfree.ui.Spacer; /** * A demo. * */ public class TimeSeriesDemo12 extends ApplicationFrame { /** * A demo. * * @param title the frame title. */ public TimeSeriesDemo12(final String title) { super(title); final XYDataset dataset = createDataset(); final JFreeChart chart = createChart(dataset); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); chartPanel.setMouseZoomable(true, false); 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. * // **************************************************************************** /** * Creates a chart. * * @param dataset a dataset. * * @return A chart. */ private JFreeChart createChart(final XYDataset dataset) { final JFreeChart chart = ChartFactory.createTimeSeriesChart("Sample Chart", "Date", "Value", dataset, true, true, false); chart.setBackgroundPaint(Color.white); // final StandardLegend sl = (StandardLegend) chart.getLegend(); // sl.setDisplaySeriesShapes(true); final XYPlot plot = chart.getXYPlot(); //plot.setOutlinePaint(null); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); // plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0)); plot.setDomainCrosshairVisible(true); plot.setRangeCrosshairVisible(false); final XYItemRenderer renderer = plot.getRenderer(); if (renderer instanceof StandardXYItemRenderer) { final StandardXYItemRenderer rr = (StandardXYItemRenderer) renderer; rr.setPlotShapes(true); rr.setShapesFilled(true); renderer.setSeriesStroke(0, new BasicStroke(2.0f)); renderer.setSeriesStroke(1, new BasicStroke(2.0f)); } final DateAxis axis = (DateAxis) plot.getDomainAxis(); axis.setDateFormatOverride(new SimpleDateFormat("hh:mma")); return chart; } /** * Creates a sample dataset. * * @return the dataset. */ private XYDataset createDataset() { final TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.setDomainIsPointsInTime(true); final TimeSeries s1 = new TimeSeries("Series 1", Minute.class); s1.add(new Minute(0, 0, 7, 12, 2003), 1.2); s1.add(new Minute(30, 12, 7, 12, 2003), 3.0); s1.add(new Minute(15, 14, 7, 12, 2003), 8.0); final TimeSeries s2 = new TimeSeries("Series 2", Minute.class); s2.add(new Minute(0, 3, 7, 12, 2003), 0.0); s2.add(new Minute(30, 9, 7, 12, 2003), 0.0); s2.add(new Minute(15, 10, 7, 12, 2003), 0.0); dataset.addSeries(s1); dataset.addSeries(s2); return dataset; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final TimeSeriesDemo12 demo = new TimeSeriesDemo12("Time Series Demo 12"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }