Java tutorial
/** * Quelle : http://www.koders.com/java/fid0CC0EF466A91FD577D941296B7C42D62367292B3.aspx */ package org.apache.hadoopts.chart.statistic; /** * * @author kamir */ /* =========================================================== * 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.] * * ------------------- * HistogramDemo2.java * ------------------- * (C) Copyright 2004, by Object Refinery Limited and Contributors. * * Original Author: David Gilbert (for Object Refinery Limited); * Contributor(s): -; * * $Id: HistogramDemo2.java,v 1.1 2005/04/28 16:29:15 harrym_nu Exp $ * * Changes * ------- * 01-Mar-2004 : Version 1 (DG); * */ import org.apache.hadoopts.data.RNGWrapper; import org.apache.hadoopts.data.export.MeasurementTable; import org.apache.hadoopts.data.series.TimeSeriesObject; import org.jfree.chart.*; import org.jfree.chart.entity.StandardEntityCollection; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.statistics.HistogramDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import java.io.File; import java.io.IOException; import java.util.Vector; /** * A demo of the {@link HistogramDataset} class. */ public class HistogramChart extends ApplicationFrame { /** * Creates a new demo. * * @param title the frame title. */ public HistogramChart(String title) { super(title); } /** * Creates a sample {@link HistogramDataset}. * * @return the dataset. */ // private IntervalXYDataset createDataset() { // HistogramDataset dataset = new HistogramDataset(); // double[] values = {1.0, 20.0, 38.0, 40.0, 45.0, 46.0, 47.0, 48.0, 9.0, 10.0}; // dataset.addSeries("Reihe 1", values, 10, 0.0, 100.0); // return dataset; // } HistogramDataset dataset = null; TimeSeriesObject mr = null; public void addSerieWithBinning(TimeSeriesObject _mr, int bins, double min, double max) { if (mr == null) dataset = new HistogramDataset(); this.mr = _mr; double[] values = mr.getYData(); dataset.addSeries(mr.getLabel(), values, bins, min, max); } public void addSerie(TimeSeriesObject _mr) { if (mr == null) dataset = new HistogramDataset(); this.mr = _mr; double[] values = mr.getYData(); dataset.addSeries(mr.getLabel(), values, 10, 0, 10.0); } // **************************************************************************** // * 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 chart. * * @param dataset a dataset. * * @return The chart. */ JFreeChart chart = null; static int widthD = 778; static int heightD = 467; public boolean useLegend = false; public ChartPanel createChartPanel() { chart = ChartFactory.createHistogram(mr.getLabel(), null, null, dataset, PlotOrientation.VERTICAL, useLegend, // legende false, false); chart.getXYPlot().setForegroundAlpha(0.75f); ChartPanel chartPanel = new ChartPanel(chart); chartPanel.setPreferredSize(new java.awt.Dimension(widthD, heightD)); return chartPanel; } public JFreeChart createChart() { JFreeChart chart = ChartFactory.createHistogram(mr.getLabel(), null, null, dataset, PlotOrientation.VERTICAL, false, // legende false, false); chart.getXYPlot().setForegroundAlpha(0.75f); return chart; } /** * The starting point for the demo. * * @param args ignored. * * @throws IOException if there is a problem saving the file. */ public static void main(String[] args) throws IOException { RNGWrapper.init(); HistogramChart demo = new HistogramChart("Mein Histogram"); TimeSeriesObject mr1 = TimeSeriesObject.getGaussianDistribution(150); TimeSeriesObject mr2 = TimeSeriesObject.getGaussianDistribution(550); //System.out.println( mr ); demo.addSerie(mr1); demo.addSerie(mr2); demo.setContentPane(demo.createChartPanel()); demo.pack(); RefineryUtilities.centerFrameOnScreen(demo); demo.setVisible(true); demo.store(".", "HIST_demo"); } boolean doStoreChart = true; public void store(JFreeChart cp, File folder, String filename) { if (doStoreChart) { // File folder = LogFile.folderFile; // String fn = folder.getAbsolutePath() + File.separator + "images/Distribution_"; // File file = null; // fn = fn + GeneralResultRecorder.currentSimulationLabel; String fn = filename; try { final File file1 = new File(folder.getAbsolutePath() + File.separator + fn + ".png"); System.out .println("\n>>> Save as PNG Image - Filename: " + file1.getAbsolutePath() + "; CP: " + cp); try { final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection()); Thread.currentThread().sleep(1000); ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info); Thread.currentThread().sleep(1000); } catch (Exception e) { e.printStackTrace(); } // File file = new File(folder.getAbsolutePath() + File.separator + fn + ".svg"); // System.out.println(">>> Save as SVG Image - Filename: " + file.getAbsolutePath() // + "; CP: "+ cp); // // // // Get a DOMImplementation and create an XML document // DOMImplementation domImpl = // GenericDOMImplementation.getDOMImplementation(); // Document document = domImpl.createDocument(null, "svg", null); // // // Create an instance of the SVG Generator // SVGGraphics2D svgGenerator = new SVGGraphics2D(document); // // // draw the chart in the SVG generator // cp.draw(svgGenerator, new Rectangle(800, 600)); // // // Write svg file // OutputStream outputStream = new FileOutputStream(file); // Writer out = new OutputStreamWriter(outputStream, "UTF-8"); // svgGenerator.stream(out, true /* use css */); // outputStream.flush(); // outputStream.close(); } catch (Exception e) { e.printStackTrace(); } } } public void store(String folder, String filename) { store(chart, new File(folder), filename); MeasurementTable tab = new MeasurementTable(); File f = new File(folder + "/" + "TAB_" + filename + ".dat"); Vector<TimeSeriesObject> mrs = new Vector<TimeSeriesObject>(); mrs.add(mr); tab.setMessReihen(mrs); tab.writeToFile(f); } }