Java/Chart/Bubble Chart

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JFreeChart: Bubbly Bubbles Demo

   <source lang="java">

/* =========================================================== 

* 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.]
*
* ----------------------
* BubblyBubblesDemo.java
* ----------------------
* (C) Copyright 2003, 2004, by Barak Naveh and Contributors.
*
* Original Author:  Barak Naveh;;
* Contributor(s):   David Gilbert (for Object Refinery Limited);
*
* $Id: BubblyBubblesDemo.java,v 1.12 2004/04/26 19:11:53 taqua Exp $
*
* Changes
* -------
* 10-Jul-2003 : Version 1 contributed by Barak Naveh (DG);
* 29-Mar-2004 : Elimintated compiler warnings while keeping JFreeChart conventions (BN); 
*
*/

package org.jfree.chart.demo; import java.awt.Color; import java.awt.GradientPaint; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.MatrixSeriesCollection; import org.jfree.data.xy.NormalizedMatrixSeries; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** 

* A demo that shows how matrix series can be used for charts that follow a
* constantly changing grid input.
*
* @author Barak Naveh
*
* @since Jun 25, 2003
*/

public class BubblyBubblesDemo extends ApplicationFrame { 

   /** The default size. */    
   private static final int    SIZE  = 10;
   
   /** The default title. */
   private static final String TITLE = "Population count at grid locations";
   /**
    * The normalized matrix series is used here to represent a changing
    * population on a grid.
    */
   NormalizedMatrixSeries series;
   /**
    * A demonstration application showing a bubble chart using matrix series.
    *
    * @param title the frame title.
    */
   public BubblyBubblesDemo(final String title) {
       super(title);
       this.series = createInitialSeries();
       final MatrixSeriesCollection dataset = new MatrixSeriesCollection(this.series);
       final JFreeChart chart = ChartFactory.createBubbleChart(
           TITLE, "X", "Y", dataset, 
           PlotOrientation.VERTICAL, 
           true,
           true, false);
       chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0,
               1000, Color.blue));
       final XYPlot plot = chart.getXYPlot();
       plot.setForegroundAlpha(0.5f);
       final NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
       domainAxis.setLowerBound(-0.5);
       final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
       // rangeAxis.setInverted(true);  // uncoment to reproduce a bug in jFreeChart
       rangeAxis.setLowerBound(-0.5);
       final ChartPanel chartPanel = new ChartPanel(chart);

// chartPanel.setVerticalZoom(true); 

 //      chartPanel.setHorizontalZoom(true);
       setContentPane(chartPanel);
   }
   /**
    * Starting point for the demonstration application.
    *
    * @param args ignored.
    */
   public static void main(final String[] args) {
       final BubblyBubblesDemo demo = new BubblyBubblesDemo(TITLE);
       demo.pack();
       demo.setSize(800, 600);
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
       final Thread updater = demo.new UpdaterThread();
       updater.setDaemon(true);
       updater.start();
   }
   // ****************************************************************************
   // * JFREECHART DEVELOPER GUIDE                                               *
   // * The JFreeChart Developer Guide, written by David Gilbert, is available   *
   // * to purchase from Object Refinery Limited:                                *
   // *                                                                          *
   // * http://www.object-refinery.ru/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 series.
    * 
    * @return The series.
    */
   private NormalizedMatrixSeries createInitialSeries() {
       final NormalizedMatrixSeries newSeries =
           new NormalizedMatrixSeries("Sample Grid 1", SIZE, SIZE);
       // seed a few random bubbles
       for (int count = 0; count < SIZE; count++) {
           final int i = (int) (Math.random() * SIZE);
           final int j = (int) (Math.random() * SIZE);
           final int mij = (int) (Math.random() * SIZE);
           newSeries.update(i, j, mij);
       }
       newSeries.setScaleFactor(newSeries.getItemCount());
       return newSeries;
   }
   /**
    * A thread for updating the dataset.
    */
   private class UpdaterThread extends Thread {
       /**
        * @see java.lang.Runnable#run()
        */
       public void run() {
           setPriority(MIN_PRIORITY); // be nice
           while (true) {
               final int i = (int) (Math.random() * SIZE);
               final int j = (int) (Math.random() * SIZE);
               series.update(i, j, series.get(i, j) + 1);
               try {
                   sleep(50);
               }
               catch (InterruptedException e) {
                   // suppress
               }
           }
       }
   }

} 


      </source>



JFreeChart: Bubbly Bubbles Demo 2

   <source lang="java">

/* =========================================================== 

* 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.]
*
* -----------------------
* BubblyBubblesDemo2.java
* -----------------------
* (C) Copyright 2003, 2004, by Barak Naveh and Contributors.
*
* Original Author:  Barak Naveh;;
* Contributor(s):   David Gilbert (for Object Refinery Limited);
*
* $Id: BubblyBubblesDemo2.java,v 1.12 2004/04/26 19:11:53 taqua Exp $
*
* Changes
* -------
* 10-Jul-2003 : Version 1 contributed by Barak Naveh (DG);
* 29-Mar-2004 : Elimintated compiler warnings while keeping JFreeChart conventions (BN);
*
*/

package org.jfree.chart.demo; import java.awt.Color; import java.awt.GradientPaint; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.MatrixSeriesCollection; import org.jfree.data.xy.NormalizedMatrixSeries; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; /** 

* A demo that shows how matrix series can be used for charts that follow a
* constantly changing grid input.
*
* @author Barak Naveh
*
* @since Jun 25, 2003
*/

public class BubblyBubblesDemo2 extends ApplicationFrame { 

   /** The default size. */
   private static final int    SIZE  = 10;

   /** The default title. */
   private static final String TITLE = "Population count at grid locations";
   /**
    * The normalized matrix series is used here to represent a changing
    * population on a grid.
    */
   NormalizedMatrixSeries series;
   /**
    * A demonstration application showing a bubble chart using matrix series.
    *
    * @param title the frame title.
    */
   public BubblyBubblesDemo2(final String title) {
       super(title);
       this.series = createInitialSeries();
       final MatrixSeriesCollection dataset = new MatrixSeriesCollection(this.series);
       final JFreeChart chart = ChartFactory.createBubbleChart(
           TITLE, 
           "X", 
           "Y", 
           dataset, 
           PlotOrientation.VERTICAL, 
           true,
           true, 
           false 
       );
       chart.setBackgroundPaint(new GradientPaint(0, 0, Color.white, 0, 1000, Color.yellow));
       final XYPlot plot = chart.getXYPlot();
       plot.setForegroundAlpha(0.5f);
       final NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis();
       domainAxis.setLowerBound(-0.5);
       final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
       rangeAxis.setLowerBound(-0.5);
       final ChartPanel chartPanel = new ChartPanel(chart);

// chartPanel.setVerticalZoom(true); 

 //      chartPanel.setHorizontalZoom(true);
       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.ru/jfreechart/guide.html                     *
   // *                                                                          *
   // * Sales are used to provide funding for the JFreeChart project - please    * 
   // * support us so that we can continue developing free software.             *
   // ****************************************************************************
   
   /**
    * Starting point for the demonstration application.
    *
    * @param args ignored.
    */
   public static void main(final String[] args) {
       final BubblyBubblesDemo2 demo = new BubblyBubblesDemo2(TITLE);
       demo.pack();
       demo.setSize(800, 600);
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
       final Thread updater = demo.new UpdaterThread();
       updater.setDaemon(true);
       updater.start();
   }

   /**
    * Creates a series.
    * 
    * @return The series.
    */
   private NormalizedMatrixSeries createInitialSeries() {
       final NormalizedMatrixSeries newSeries =
               new NormalizedMatrixSeries("Sample Grid 1", SIZE, SIZE);
       // seed a few random bubbles
       for (int count = 0; count < SIZE * 3; count++) {
           final int i = (int) (Math.random() * SIZE);
           final int j = (int) (Math.random() * SIZE);
           final double mij = Math.random() * 1;
           newSeries.update(i, j, mij);
       }
       newSeries.setScaleFactor(newSeries.getItemCount());
       return newSeries;
   }
   /**
    * Updater thread.
    */
   private class UpdaterThread extends Thread {
       /**
        * @see java.lang.Runnable#run()
        */
       public void run() {
           setPriority(MIN_PRIORITY); // be nice
           while (true) {
               final int i = (int) (Math.random() * SIZE);
               final int j = (int) (Math.random() * SIZE);
               final double change = Math.random() * 3.0 - 1.0;
               series.update(i, j, series.get(i, j) + change);
               try {
                   sleep(50);
               }
               catch (InterruptedException e) {
                   // suppressed
               }
           }
       }
   }

} 

      </source>
Источник — «http://jexp.ru/index.php?title=Java/Chart/Bubble_Chart&oldid=8053»