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Текущая версия на 09:52, 1 июня 2010

JFreeChart: Waterfall Chart 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.]
*
* -----------------------
* WaterfallChartDemo.java
* -----------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author:  David Gilbert (for Object Refinery Limited);
* Contributor(s):   -;
*
* $Id: WaterfallChartDemo.java,v 1.14 2004/05/10 16:45:23 mungady Exp $
*
* Changes
* -------
* 21-Oct-2003 : Version 1 (DG);
* 06-Nov-2003 : Modified to use ChartFactory (DG);
*
*/

package org.jfree.chart.demo; import java.awt.Color; import java.text.DecimalFormat; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberTickUnit; import org.jfree.chart.axis.TickUnits; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.RefineryUtilities; import org.jfree.ui.Spacer; /**

* A sample waterfall chart.
*/

public class WaterfallChartDemo extends ApplicationFrame {

   /**
    * Creates a new WaterFall Chart demo.
    * 
    * @param title  the frame title.
    */
   public WaterfallChartDemo(final String title) {
       super(title);
       
       final CategoryDataset dataset = createDataset();
       final JFreeChart chart = createChart(dataset);
       final ChartPanel chartPanel = new ChartPanel(chart);
       chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
       chartPanel.setEnforceFileExtensions(false);
       setContentPane(chartPanel);
      
   }
   /**
    * Creates a sample dataset for the demo.
    * 
    * @return A sample dataset.
    */
   private CategoryDataset createDataset() {
       final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
       dataset.addValue(15.76, "Product 1", "Labour");
       dataset.addValue(8.66, "Product 1", "Administration");
       dataset.addValue(4.71, "Product 1", "Marketing");
       dataset.addValue(3.51, "Product 1", "Distribution");
       dataset.addValue(32.64, "Product 1", "Total Expense");
       return dataset;
   }
   
   // ****************************************************************************
   // * 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.             *
   // ****************************************************************************
   
   /**
    * Returns the chart.
    * 
    * @param dataset  the dataset.
    *
    * @return The chart.
    */
   private JFreeChart createChart(final CategoryDataset dataset) {
       
       final JFreeChart chart = ChartFactory.createWaterfallChart(
           "Product Cost Breakdown",
           "Expense Category",
           "Cost Per Unit",
           dataset,
           PlotOrientation.VERTICAL,
           true,
           true,
           false
       );
       chart.setBackgroundPaint(Color.white);
       final CategoryPlot plot = chart.getCategoryPlot();
       plot.setBackgroundPaint(Color.lightGray);
       plot.setRangeGridlinePaint(Color.white);
       plot.setRangeGridlinesVisible(true);

// plot.setAxisOffset(new Spacer(Spacer.ABSOLUTE, 5.0, 5.0, 5.0, 5.0));

       final ValueAxis rangeAxis = plot.getRangeAxis();
       
       // create a custom tick unit collection...
       final DecimalFormat formatter = new DecimalFormat("##,###");
       formatter.setNegativePrefix("(");
       formatter.setNegativeSuffix(")");
       final TickUnits standardUnits = new TickUnits();
       standardUnits.add(new NumberTickUnit(5, formatter));
       standardUnits.add(new NumberTickUnit(10, formatter));
       standardUnits.add(new NumberTickUnit(20, formatter));
       standardUnits.add(new NumberTickUnit(50, formatter));
       standardUnits.add(new NumberTickUnit(100, formatter));
       standardUnits.add(new NumberTickUnit(200, formatter));
       standardUnits.add(new NumberTickUnit(500, formatter));
       standardUnits.add(new NumberTickUnit(1000, formatter));
       standardUnits.add(new NumberTickUnit(2000, formatter));
       standardUnits.add(new NumberTickUnit(5000, formatter));
       rangeAxis.setStandardTickUnits(standardUnits);
       final BarRenderer renderer = (BarRenderer) plot.getRenderer();
       renderer.setDrawBarOutline(false);
       final DecimalFormat labelFormatter = new DecimalFormat("$##,###.00");
       labelFormatter.setNegativePrefix("(");
       labelFormatter.setNegativeSuffix(")");

// renderer.setLabelGenerator(

 //          new StandardCategoryLabelGenerator("{2}", labelFormatter)
   //    );
       renderer.setItemLabelsVisible(true);
       return chart;
   }
   /**
    * Starting point for the demo.
    *
    * @param args  ignored.
    */
   public static void main(final String[] args) {
       final WaterfallChartDemo demo = new WaterfallChartDemo("Waterfall Chart Demo");
       demo.pack();
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
   }
   

}

      </source>
   
  
 
  



JFreeChart: Waterfall Chart 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.]
*
* ------------------------
* WaterfallChartDemo2.java
* ------------------------
* (C) Copyright 2003, 2004, by Object Refinery Limited and Contributors.
*
* Original Author:  Darshan Shah;
* Contributor(s):   David Gilbert (for Object Refinery Limited);
*
* $Id: WaterfallChartDemo2.java,v 1.11 2004/05/10 16:45:23 mungady Exp $
*
* Changes
* -------
* 20-Oct-2003 : Version 1, based on code contributed by Darshan Shah (DG);
*
*/

package org.jfree.chart.demo; import java.awt.BasicStroke; import java.awt.Color; import java.text.DecimalFormat; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.NumberTickUnit; import org.jfree.chart.axis.TickUnits; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.ValueMarker; import org.jfree.chart.renderer.category.WaterfallBarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import org.jfree.ui.ApplicationFrame; import org.jfree.ui.Layer; import org.jfree.ui.RefineryUtilities; /**

* A sample waterfall chart.
*/

public class WaterfallChartDemo2 extends ApplicationFrame {

   /**
    * Creates a new WaterFall Chart demo.
    * 
    * @param title  the frame title.
    */
   public WaterfallChartDemo2(final String title) {
       super(title);
       
       final CategoryDataset dataset = createDataset();
       final JFreeChart chart = createChart(dataset);
       
       final ChartPanel chartPanel = new ChartPanel(chart);
       chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
       chartPanel.setEnforceFileExtensions(false);
       setContentPane(chartPanel);
   }
   /**
    * Creates a sample dataset for the demo.
    * 
    * @return A sample dataset.
    */
   private CategoryDataset createDataset() {
        
       final DefaultCategoryDataset dataset = new DefaultCategoryDataset();
       dataset.addValue(-890.76, "S1", "PY OM");
       dataset.addValue(-3021.51, "S1", "Vol CM");
       dataset.addValue(-218.32, "S1", "Price");
       dataset.addValue(221.75, "S1", "Mat Inf");
       dataset.addValue(-1504.1, "S1", "Oth Inf");
       dataset.addValue(7103.8, "S1", "VCP");
       dataset.addValue(3503.3, "S1", "CM FX");
       dataset.addValue(-6561.97, "S1", "Base");
       dataset.addValue(-824.25, "S1", "OM");
       return dataset;
       
   }
   
   /**
    * Returns the chart.
    *
    * @param dataset  the dataset.
    * 
    * @return The chart.
    */
   private JFreeChart createChart(final CategoryDataset dataset) {
       
       final CategoryAxis xAxis = new CategoryAxis("Category");
       final NumberAxis yAxis = new NumberAxis("$ in Thousands");
       yAxis.setLowerMargin(0.10);
       yAxis.setUpperMargin(0.10);
       
       // create a custom tick unit collection...
       final DecimalFormat formatter = new DecimalFormat("##,###");
       formatter.setNegativePrefix("(");
       formatter.setNegativeSuffix(")");
       final TickUnits standardUnits = new TickUnits();
       standardUnits.add(new NumberTickUnit(200, formatter));
       standardUnits.add(new NumberTickUnit(500, formatter));
       standardUnits.add(new NumberTickUnit(1000, formatter));
       standardUnits.add(new NumberTickUnit(2000, formatter));
       standardUnits.add(new NumberTickUnit(5000, formatter));
       yAxis.setStandardTickUnits(standardUnits);
       // ****************************************************************************
       // * 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.             *
       // ****************************************************************************
       
       final DecimalFormat labelFormatter = new DecimalFormat("##,###");
       labelFormatter.setNegativePrefix("(");
       labelFormatter.setNegativeSuffix(")");
       final WaterfallBarRenderer renderer = new WaterfallBarRenderer();

// renderer.setLabelGenerator(

 //          new StandardCategoryLabelGenerator("{2}", labelFormatter)
   //    );
       renderer.setItemLabelsVisible(Boolean.TRUE);
       final CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer);
       plot.setBackgroundPaint(Color.lightGray);
       plot.setRangeGridlinePaint(Color.white);
       plot.setRangeGridlinesVisible(true);
       final ValueMarker baseline = new ValueMarker(0.0);
       baseline.setPaint(Color.blue);
       baseline.setStroke(new BasicStroke(1.1f));
       plot.addRangeMarker(baseline, Layer.FOREGROUND);
       final JFreeChart chart = new JFreeChart("OM WaterFall Chart",
                                         JFreeChart.DEFAULT_TITLE_FONT, plot, false);
       chart.setBackgroundPaint(Color.white);
       return chart;
   }
   /**
    * Starting point for the demo.
    *
    * @param args  ignored.
    */
   public static void main(final String[] args) {
       final WaterfallChartDemo2 demo = new WaterfallChartDemo2("Waterfall Chart Demo 2");
       demo.pack();
       RefineryUtilities.centerFrameOnScreen(demo);
       demo.setVisible(true);
   }

}

      </source>