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.] * * -------------------- * TimeSeriesDemo9.java * -------------------- * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: TimeSeriesDemo9.java,v 1.11 2004/04/26 19:12:04 taqua Exp $ * * Changes * ------- * 11-Feb-2003 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.geom.Ellipse2D; import java.awt.geom.GeneralPath; import java.awt.geom.Rectangle2D; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; 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.Day; 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; /** * An example of a time series chart. * */ public class TimeSeriesDemo9 extends ApplicationFrame { /** * A demonstration application showing how to create a simple time series chart. This * example uses monthly data. * * @param title the frame title. */ public TimeSeriesDemo9(final String title) { super(title); // create a title... final String chartTitle = "Test"; final XYDataset dataset = createDataset(); final JFreeChart chart = ChartFactory.createTimeSeriesChart(chartTitle, "Date", "Price Per Unit", dataset, true, true, false); // final StandardLegend sl = (StandardLegend) chart.getLegend(); // sl.setDisplaySeriesShapes(true); final XYPlot plot = chart.getXYPlot(); final XYItemRenderer r = plot.getRenderer(); if (r instanceof StandardXYItemRenderer) { final StandardXYItemRenderer renderer = (StandardXYItemRenderer) r; renderer.setPlotShapes(true); renderer.setShapesFilled(true); renderer.setSeriesShape(0, new Ellipse2D.Double(-3.0, -3.0, 6.0, 6.0)); renderer.setSeriesShape(1, new Rectangle2D.Double(-3.0, -3.0, 6.0, 6.0)); final GeneralPath s2 = new GeneralPath(); s2.moveTo(0.0f, -3.0f); s2.lineTo(3.0f, 3.0f); s2.lineTo(-3.0f, 3.0f); s2.closePath(); renderer.setSeriesShape(2, s2); final GeneralPath s3 = new GeneralPath(); s3.moveTo(-1.0f, -3.0f); s3.lineTo(1.0f, -3.0f); s3.lineTo(1.0f, -1.0f); s3.lineTo(3.0f, -1.0f); s3.lineTo(3.0f, 1.0f); s3.lineTo(1.0f, 1.0f); s3.lineTo(1.0f, 3.0f); s3.lineTo(-1.0f, 3.0f); s3.lineTo(-1.0f, 1.0f); s3.lineTo(-3.0f, 1.0f); s3.lineTo(-3.0f, -1.0f); s3.lineTo(-1.0f, -1.0f); s3.closePath(); renderer.setSeriesShape(3, s3); } plot.getDomainAxis().setVisible(false); plot.getRangeAxis().setVisible(false); 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. * // **************************************************************************** /** * Creates a sample dataset. * * @return The dataset. */ public XYDataset createDataset() { final TimeSeriesCollection dataset = new TimeSeriesCollection(); for (int i = 0; i < 4; i++) { dataset.addSeries(createTimeSeries(i, 10)); } return dataset; } /** * Creates a time series containing random daily data. * * @param series the series index. * @param count the number of items for the series. * * @return the dataset. */ public TimeSeries createTimeSeries(final int series, final int count) { final TimeSeries result = new TimeSeries("Series " + series, Day.class); Day start = new Day(); for (int i = 0; i < count; i++) { result.add(start, Math.random()); start = (Day) start.next(); } return result; } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(final String[] args) { final TimeSeriesDemo9 demo = new TimeSeriesDemo9("Time Series Demo 9"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }