Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2014, 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, * USA. * * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. * Other names may be trademarks of their respective owners.] * * ------------------------- * TimeSeriesChartDemo1.java * ------------------------- * (C) Copyright 2003-2014, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): ; * * Changes * ------- * 09-Mar-2005 : Version 1, copied from the demo collection that ships with * the JFreeChart Developer Guide (DG); * */ import java.awt.Color; import java.text.SimpleDateFormat; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.StandardChartTheme; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.time.Month; 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.RectangleInsets; import org.jfree.ui.RefineryUtilities; /** * An example of a time series chart. For the most part, default settings are * used, except that the renderer is modified to show filled shapes (as well as * lines) at each data point. */ public class TimeSeriesChartDemo1 extends ApplicationFrame { private static final long serialVersionUID = 1L; static { // set a theme using the new shadow generator feature available in // 1.0.14 - for backwards compatibility it is not enabled by default ChartFactory.setChartTheme(new StandardChartTheme("JFree/Shadow", true)); } /** * A demonstration application showing how to create a simple time series * chart. This example uses monthly data. * * @param title the frame title. */ public TimeSeriesChartDemo1(String title) { super(title); ChartPanel chartPanel = (ChartPanel) createDemoPanel(); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(chartPanel); } /** * Creates a chart. * * @param dataset a dataset. * * @return A chart. */ private static JFreeChart createChart(XYDataset dataset) { JFreeChart chart = ChartFactory.createTimeSeriesChart("Legal & General Unit Trust Prices", // title "Date", // x-axis label "Price Per Unit", // y-axis label dataset, // data true, // create legend? true, // generate tooltips? false // generate URLs? ); chart.setBackgroundPaint(Color.white); XYPlot plot = (XYPlot) chart.getPlot(); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setRangeGridlinePaint(Color.white); plot.setAxisOffset(new RectangleInsets(5.0, 5.0, 5.0, 5.0)); plot.setDomainCrosshairVisible(true); plot.setRangeCrosshairVisible(true); XYItemRenderer r = plot.getRenderer(); if (r instanceof XYLineAndShapeRenderer) { XYLineAndShapeRenderer renderer = (XYLineAndShapeRenderer) r; renderer.setBaseShapesVisible(true); renderer.setBaseShapesFilled(true); renderer.setDrawSeriesLineAsPath(true); } DateAxis axis = (DateAxis) plot.getDomainAxis(); axis.setDateFormatOverride(new SimpleDateFormat("MMM-yyyy")); return chart; } /** * Creates a dataset, consisting of two series of monthly data. * * @return The dataset. */ private static XYDataset createDataset() { TimeSeries s1 = new TimeSeries("L&G European Index Trust"); s1.add(new Month(2, 2001), 181.8); s1.add(new Month(3, 2001), 167.3); s1.add(new Month(4, 2001), 153.8); s1.add(new Month(5, 2001), 167.6); s1.add(new Month(6, 2001), 158.8); s1.add(new Month(7, 2001), 148.3); s1.add(new Month(8, 2001), 153.9); s1.add(new Month(9, 2001), 142.7); s1.add(new Month(10, 2001), 123.2); s1.add(new Month(11, 2001), 131.8); s1.add(new Month(12, 2001), 139.6); s1.add(new Month(1, 2002), 142.9); s1.add(new Month(2, 2002), 138.7); s1.add(new Month(3, 2002), 137.3); s1.add(new Month(4, 2002), 143.9); s1.add(new Month(5, 2002), 139.8); s1.add(new Month(6, 2002), 137.0); s1.add(new Month(7, 2002), 132.8); /* TimeSeries s2 = new TimeSeries("L&G UK Index Trust"); s2.add(new Month(2, 2001), 129.6); s2.add(new Month(3, 2001), 123.2); s2.add(new Month(4, 2001), 117.2); s2.add(new Month(5, 2001), 124.1); s2.add(new Month(6, 2001), 122.6); s2.add(new Month(7, 2001), 119.2); s2.add(new Month(8, 2001), 116.5); s2.add(new Month(9, 2001), 112.7); s2.add(new Month(10, 2001), 101.5); s2.add(new Month(11, 2001), 106.1); s2.add(new Month(12, 2001), 110.3); s2.add(new Month(1, 2002), 111.7); s2.add(new Month(2, 2002), 111.0); s2.add(new Month(3, 2002), 109.6); s2.add(new Month(4, 2002), 113.2); s2.add(new Month(5, 2002), 111.6); s2.add(new Month(6, 2002), 108.8); s2.add(new Month(7, 2002), 101.6);*/ // ****************************************************************** // More than 150 demo applications are included with the JFreeChart // Developer Guide...for more information, see: // // > http://www.object-refinery.com/jfreechart/guide.html // // ****************************************************************** TimeSeriesCollection dataset = new TimeSeriesCollection(); dataset.addSeries(s1); //dataset.addSeries(s2); return dataset; } /** * Creates a panel for the demo (used by SuperDemo.java). * * @return A panel. */ public static JPanel createDemoPanel() { JFreeChart chart = createChart(createDataset()); ChartPanel panel = new ChartPanel(chart); panel.setFillZoomRectangle(true); panel.setMouseWheelEnabled(true); return panel; } /** * Starting point for the demonstration application. * * @param args ignored. */ /*public static void main(String[] args) { TimeSeriesChartDemo1 demo = new TimeSeriesChartDemo1( "Time Series Chart Demo 1"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); }*/ }