Java tutorial
/**************************************************** Statistics Online Computational Resource (SOCR) http://www.StatisticsResource.org All SOCR programs, materials, tools and resources are developed by and freely disseminated to the entire community. Users may revise, extend, redistribute, modify under the terms of the Lesser GNU General Public License as published by the Open Source Initiative http://opensource.org/licenses/. All efforts should be made to develop and distribute factually correct, useful, portable and extensible resource all available in all digital formats for free over the Internet. SOCR resources are distributed in the hope that they will be useful, but without any warranty; without any explicit, implicit or implied warranty for merchantability or fitness for a particular purpose. See the GNU Lesser General Public License for more details see http://opensource.org/licenses/lgpl-license.php. http://www.SOCR.ucla.edu http://wiki.stat.ucla.edu/socr It s Online, Therefore, It Exists! ****************************************************/ package edu.ucla.stat.SOCR.chart.demo; import java.beans.PropertyChangeListener; import java.text.AttributedString; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.labels.PieSectionLabelGenerator; import org.jfree.chart.plot.PiePlot3D; import org.jfree.data.general.DefaultPieDataset; import org.jfree.data.general.PieDataset; import org.jfree.util.Rotation; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperPieChart; import edu.ucla.stat.SOCR.chart.gui.CustomPieSectionLabelGenerator; import edu.ucla.stat.SOCR.chart.gui.Rotator; /** * A pie chart with a custom label generator. */ public class PieChart3DDemo3 extends SuperPieChart implements PropertyChangeListener { public void init() { ThreeDPie = true; super.init(); } /** * * sample code showing how to creat chart using ChartGenerator_JTable */ public void doTest() { JFreeChart chart; ChartGenerator_JTable chartMaker = new ChartGenerator_JTable(); resetChart(); showMessageDialog(chartTitle + " doTest get called!"); int[][] pairs = new int[1][2]; pairs[0][0] = 1; // value pairs[0][1] = 0; // name chart = chartMaker.getPieChart(chartTitle, dataTable, pairs, "3D"); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Creates a sample dataset for the demo. * @param isDemo true use demo data, false use data from JTable * @return A sample dataset. */ protected DefaultPieDataset createDataset(boolean isDemo) { if (isDemo) { DefaultPieDataset result = new DefaultPieDataset(); result.setValue("Java", new Double(43.2)); result.setValue("Visual Basic", new Double(10.0)); result.setValue("C/C++", new Double(17.5)); result.setValue("PHP", new Double(32.5)); result.setValue("Perl", new Double(1.0)); pulloutFlag = new String[5]; for (int i = 0; i < 5; i++) pulloutFlag[i] = "0"; pulloutFlag[2] = "1"; return result; } else return super.createDataset(isDemo); } /** * Creates a sample chart. * * @param dataset the dataset. * * @return A chart. */ protected JFreeChart createChart(PieDataset dataset) { JFreeChart chart = ChartFactory.createPieChart3D(chartTitle, // chart title dataset, // data !legendPanelOn, // include legend true, false); PiePlot3D plot = (PiePlot3D) chart.getPlot(); plot.setStartAngle(290); plot.setDirection(Rotation.CLOCKWISE); plot.setForegroundAlpha(0.5f); plot.setNoDataMessage("No data to display"); plot.setLabelGenerator(new CustomPieSectionLabelGenerator()); for (int i = 0; i < pulloutFlag.length; i++) { //System.out.println("\""+pulloutFlag[i]+"\""); if (pulloutFlag[i].equals("1")) { Comparable key = dataset.getKey(i); plot.setExplodePercent(key, 0.30); } } if (rotateOn) { Rotator rotator = new Rotator(plot); rotator.start(); } setCategorySummary(dataset); return chart; } }