Java tutorial
/* =========================================================== * JFreeChart : a free chart library for the Java(tm) platform * =========================================================== * * (C) Copyright 2000-2011, 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.] * * ------------------------ * CombinedXYPlotDemo1.java * ------------------------ * (C) Copyright 2008, 2009, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): ; * * Changes * ------- * 05-May-2008 : Version 1 (DG); * */ package ChartUsingJava; import java.awt.BasicStroke; import java.awt.Color; import java.awt.Paint; import java.text.DecimalFormat; import java.text.SimpleDateFormat; import javax.swing.JPanel; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.DateAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.labels.StandardXYToolTipGenerator; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYBarRenderer; import org.jfree.chart.renderer.xy.XYItemRenderer; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.chart.title.LegendTitle; import org.jfree.data.time.Month; import org.jfree.data.time.TimeSeries; import org.jfree.data.time.TimeSeriesCollection; import org.jfree.data.xy.IntervalXYDataset; import org.jfree.data.xy.XYDataset; import org.jfree.experimental.chart.plot.CombinedXYPlot; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** * A demonstration application showing a {@link CombinedXYPlot} with * two subplots. */ public class CombinedXYPlotDemo1 extends ApplicationFrame { /** * Constructs a new demonstration application. * * @param title the frame title. */ public CombinedXYPlotDemo1(String title) { super(title); JPanel panel = createDemoPanel(); panel.setPreferredSize(new java.awt.Dimension(500, 270)); setContentPane(panel); } /** * Creates an overlaid chart. * * @return The chart. */ private static JFreeChart createCombinedChart() { // create plot ... IntervalXYDataset data1 = createDataset1(); XYItemRenderer renderer1 = new XYLineAndShapeRenderer(true, false); renderer1.setBaseToolTipGenerator( new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00"))); renderer1.setSeriesStroke(0, new BasicStroke(4.0f, BasicStroke.CAP_ROUND, BasicStroke.JOIN_BEVEL)); renderer1.setSeriesPaint(0, Color.blue); DateAxis domainAxis = new DateAxis("Year"); domainAxis.setLowerMargin(0.0); domainAxis.setUpperMargin(0.02); ValueAxis rangeAxis = new NumberAxis("$billion"); XYPlot plot1 = new XYPlot(data1, null, rangeAxis, renderer1); plot1.setBackgroundPaint(Color.lightGray); plot1.setDomainGridlinePaint(Color.white); plot1.setRangeGridlinePaint(Color.white); // add a second dataset and renderer... IntervalXYDataset data2 = createDataset2(); XYBarRenderer renderer2 = new XYBarRenderer() { public Paint getItemPaint(int series, int item) { XYDataset dataset = getPlot().getDataset(); if (dataset.getYValue(series, item) >= 0.0) { return Color.red; } else { return Color.green; } } }; renderer2.setSeriesPaint(0, Color.red); renderer2.setDrawBarOutline(false); renderer2.setBaseToolTipGenerator( new StandardXYToolTipGenerator(StandardXYToolTipGenerator.DEFAULT_TOOL_TIP_FORMAT, new SimpleDateFormat("d-MMM-yyyy"), new DecimalFormat("0.00"))); XYPlot plot2 = new XYPlot(data2, null, new NumberAxis("$billion"), renderer2); plot2.setBackgroundPaint(Color.lightGray); plot2.setDomainGridlinePaint(Color.white); plot2.setRangeGridlinePaint(Color.white); CombinedXYPlot cplot = new CombinedXYPlot(domainAxis, rangeAxis); cplot.add(plot1, 3); cplot.add(plot2, 2); cplot.setGap(8.0); cplot.setDomainGridlinePaint(Color.white); cplot.setDomainGridlinesVisible(true); // return a new chart containing the overlaid plot... JFreeChart chart = new JFreeChart("CombinedXYPlotDemo1", JFreeChart.DEFAULT_TITLE_FONT, cplot, false); chart.setBackgroundPaint(Color.white); LegendTitle legend = new LegendTitle(cplot); chart.addSubtitle(legend); return chart; } /** * Creates a sample dataset. You wouldn't normally hard-code the * population of a dataset in this way (it would be better to read the * values from a file or a database query), but for a self-contained demo * this is the least complicated solution. * * @return The dataset. */ private static IntervalXYDataset createDataset1() { // create dataset 1... TimeSeries series1 = new TimeSeries("Series 1"); series1.add(new Month(1, 2005), 7627.743); series1.add(new Month(2, 2005), 7713.138); series1.add(new Month(3, 2005), 6776.939); series1.add(new Month(4, 2005), 5764.537); series1.add(new Month(5, 2005), 4777.880); series1.add(new Month(6, 2005), 4836.496); series1.add(new Month(7, 2005), 3887.618); series1.add(new Month(8, 2005), 3926.933); series1.add(new Month(9, 2005), 4932.710); series1.add(new Month(10, 2005), 4027.123); series1.add(new Month(11, 2005), 8092.322); series1.add(new Month(12, 2005), 8170.414); series1.add(new Month(1, 2006), 8196.070); series1.add(new Month(2, 2006), 8269.886); series1.add(new Month(3, 2006), 5371.156); series1.add(new Month(4, 2006), 5355.718); series1.add(new Month(5, 2006), 5356.777); series1.add(new Month(6, 2006), 8420.042); series1.add(new Month(7, 2006), 8444.347); series1.add(new Month(8, 2006), 8515.034); series1.add(new Month(9, 2006), 8506.974); series1.add(new Month(10, 2006), 8584.329); series1.add(new Month(11, 2006), 8633.246); series1.add(new Month(12, 2006), 8680.224); series1.add(new Month(1, 2007), 8707.561); return new TimeSeriesCollection(series1); } /** * Creates a sample dataset. You wouldn't normally hard-code the * population of a dataset in this way (it would be better to read the * values from a file or a database query), but for a self-contained demo * this is the least complicated solution. * * @return A sample dataset. */ private static IntervalXYDataset createDataset2() { TimeSeriesCollection dataset = new TimeSeriesCollection(); TimeSeries series1 = new TimeSeries("Series 2"); series1.add(new Month(1, 2005), 1200); series1.add(new Month(2, 2005), 1400); series1.add(new Month(3, 2005), 1500); series1.add(new Month(4, 2005), 1700); series1.add(new Month(5, 2005), 1600); series1.add(new Month(6, 2005), 2400); series1.add(new Month(7, 2005), 2100); series1.add(new Month(8, 2005), 2200); series1.add(new Month(9, 2005), 800); series1.add(new Month(10, 2005), 2350); series1.add(new Month(11, 2005), 500); series1.add(new Month(12, 2005), 700); series1.add(new Month(1, 2006), 900); series1.add(new Month(2, 2006), 1500); series1.add(new Month(3, 2006), 2100); series1.add(new Month(4, 2006), 2200); series1.add(new Month(5, 2006), 1900); series1.add(new Month(6, 2006), 3000); series1.add(new Month(7, 2006), 3780); series1.add(new Month(8, 2006), 4000); series1.add(new Month(9, 2006), 4500); series1.add(new Month(10, 2006), 7000); series1.add(new Month(11, 2006), 5500); series1.add(new Month(12, 2006), 6000); series1.add(new Month(1, 2007), 6500); dataset.addSeries(series1); return dataset; } /** * Creates a panel for the demo (used by SuperDemo.java). * * @return A panel. */ public static JPanel createDemoPanel() { JFreeChart chart = createCombinedChart(); return new ChartPanel(chart); } /** * Starting point for the demonstration application. * * @param args ignored. */ public static void main(String[] args) { CombinedXYPlotDemo1 demo = new CombinedXYPlotDemo1("JFreeChart : CombinedXYPlotDemo1"); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); } }