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.] * * ---------------- * MarkerDemo1.java * ---------------- * (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: MarkerDemo1.java,v 1.16 2004/05/11 14:56:17 mungady Exp $ * * Changes * ------- * 21-May-2003 : Version 1 (DG); * */ package org.jfree.chart.demo; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Font; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.annotations.XYAnnotation; import org.jfree.chart.annotations.XYDrawableAnnotation; import org.jfree.chart.annotations.XYPointerAnnotation; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.Marker; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.ValueMarker; import org.jfree.chart.plot.XYPlot; import org.jfree.data.time.Day; import org.jfree.data.time.Hour; 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.RectangleAnchor; import org.jfree.ui.RefineryUtilities; import org.jfree.ui.TextAnchor; /** * A demo application. * */ public class MarkerDemo1 extends ApplicationFrame { /** * Creates a new instance. * * @param title the frame title. */ public MarkerDemo1(final String title) { super(title); final XYDataset data = createDataset(); final JFreeChart chart = createChart(data); final ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(500, 270)); // chartPanel.setVerticalZoom(true); // chartPanel.setHorizontalZoom(true); setContentPane(chartPanel); } /** * Creates a sample chart. * * @param data the sample data. * * @return A configured chart. */ private JFreeChart createChart(final XYDataset data) { final JFreeChart chart = ChartFactory.createScatterPlot("Marker Demo 1", "X", "Y", data, PlotOrientation.VERTICAL, true, true, false); // chart.getLegend().setAnchor(Legend.EAST); // customise... final XYPlot plot = chart.getXYPlot(); plot.getRenderer().setToolTipGenerator(StandardXYToolTipGenerator.getTimeSeriesInstance()); // set axis margins to allow space for marker labels... final DateAxis domainAxis = new DateAxis("Time"); domainAxis.setUpperMargin(0.50); plot.setDomainAxis(domainAxis); final ValueAxis rangeAxis = plot.getRangeAxis(); rangeAxis.setUpperMargin(0.30); rangeAxis.setLowerMargin(0.50); // add a labelled marker for the bid start price... final Marker start = new ValueMarker(200.0); start.setPaint(Color.green); start.setLabel("Bid Start Price"); start.setLabelAnchor(RectangleAnchor.BOTTOM_RIGHT); start.setLabelTextAnchor(TextAnchor.TOP_RIGHT); plot.addRangeMarker(start); // add a labelled marker for the target price... final Marker target = new ValueMarker(175.0); target.setPaint(Color.red); target.setLabel("Target Price"); target.setLabelAnchor(RectangleAnchor.TOP_RIGHT); target.setLabelTextAnchor(TextAnchor.BOTTOM_RIGHT); plot.addRangeMarker(target); // add a labelled marker for the original closing time... final Hour hour = new Hour(2, new Day(22, 5, 2003)); double millis = hour.getFirstMillisecond(); final Marker originalEnd = new ValueMarker(millis); originalEnd.setPaint(Color.orange); originalEnd.setLabel("Original Close (02:00)"); originalEnd.setLabelAnchor(RectangleAnchor.TOP_LEFT); originalEnd.setLabelTextAnchor(TextAnchor.TOP_RIGHT); plot.addDomainMarker(originalEnd); // add a labelled marker for the current closing time... final Minute min = new Minute(15, hour); millis = min.getFirstMillisecond(); final Marker currentEnd = new ValueMarker(millis); currentEnd.setPaint(Color.red); currentEnd.setLabel("Close Date (02:15)"); currentEnd.setLabelAnchor(RectangleAnchor.TOP_RIGHT); currentEnd.setLabelTextAnchor(TextAnchor.TOP_LEFT); plot.addDomainMarker(currentEnd); // **************************************************************************** // * 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. * // **************************************************************************** // label the best bid with an arrow and label... final Hour h = new Hour(2, new Day(22, 5, 2003)); final Minute m = new Minute(10, h); millis = m.getFirstMillisecond(); final CircleDrawer cd = new CircleDrawer(Color.red, new BasicStroke(1.0f), null); final XYAnnotation bestBid = new XYDrawableAnnotation(millis, 163.0, 11, 11, cd); plot.addAnnotation(bestBid); final XYPointerAnnotation pointer = new XYPointerAnnotation("Best Bid", millis, 163.0, 3.0 * Math.PI / 4.0); pointer.setBaseRadius(35.0); pointer.setTipRadius(10.0); pointer.setFont(new Font("SansSerif", Font.PLAIN, 9)); pointer.setPaint(Color.blue); pointer.setTextAnchor(TextAnchor.HALF_ASCENT_RIGHT); plot.addAnnotation(pointer); return chart; } /** * Returns a sample dataset. * * @return A sample dataset. */ private XYDataset createDataset() { final TimeSeriesCollection result = new TimeSeriesCollection(); result.addSeries(createSupplier1Bids()); result.addSeries(createSupplier2Bids()); return result; } /** * Returns a sample data series (for supplier 1). * * @return A sample data series. */ private TimeSeries createSupplier1Bids() { final Hour hour = new Hour(1, new Day(22, 5, 2003)); final TimeSeries series1 = new TimeSeries("Supplier 1", Minute.class); series1.add(new Minute(13, hour), 200.0); series1.add(new Minute(14, hour), 195.0); series1.add(new Minute(45, hour), 190.0); series1.add(new Minute(46, hour), 188.0); series1.add(new Minute(47, hour), 185.0); series1.add(new Minute(52, hour), 180.0); return series1; } /** * Returns a sample data series (for supplier 2). * * @return A sample data series. */ private TimeSeries createSupplier2Bids() { final Hour hour1 = new Hour(1, new Day(22, 5, 2003)); final Hour hour2 = (Hour) hour1.next(); final TimeSeries series2 = new TimeSeries("Supplier 2", Minute.class); series2.add(new Minute(25, hour1), 185.0); series2.add(new Minute(0, hour2), 175.0); series2.add(new Minute(5, hour2), 170.0); series2.add(new Minute(6, hour2), 168.0); series2.add(new Minute(9, hour2), 165.0); series2.add(new Minute(10, hour2), 163.0); return series2; } /** * Starting point for the demo application. * * @param args ignored. */ public static void main(final String[] args) { final MarkerDemo1 demo = new MarkerDemo1("Marker Demo 1"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }