Java/Chart/Interval Bar Chart

JFreeChart: Interval Bar Chart Demo 1

   <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.]
*
* --------------------------
* IntervalBarChartDemo1.java
* --------------------------
* (C) Copyright 2002-2004, by Jeremy Bowman and Contributors.
*
* Original Author:  Jeremy Bowman.
* Contributor(s):   David Gilbert (for Object Refinery Limited);
*
* $Id: IntervalBarChartDemo1.java,v 1.16 2004/05/10 16:45:23 mungady Exp $
*
* Changes
* -------
* 29-Apr-2002 : Version 1, contributed by Jeremy Bowman.  Name changed to
*               IntervalBarChartDemo, and the chart is displayed in a frame rather than
*               saved to a file (DG);
* 25-Jun-2002 : Removed unnecessary imports (DG);
* 10-Oct-2002 : Fixed errors reported by Checkstyle (DG);
*
*/

package org.jfree.chart.demo; import java.awt.Color; import java.awt.Font; import java.text.DecimalFormat; import org.jfree.chart.ChartFrame; 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.labels.ItemLabelAnchor; import org.jfree.chart.labels.ItemLabelPosition; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.IntervalBarRenderer; import org.jfree.data.category.DefaultIntervalCategoryDataset; import org.jfree.ui.TextAnchor; /**

* An interval bar chart.
*
* @author Jeremy Bowman
*/

public class IntervalBarChartDemo1 {

   /** The categories. */
   private static final String[] CATEGORIES = {"1", "3", "5", "10", "20"};
   /** The label font. */
   private static Font labelFont = null;
   /** The title font. */
   private static Font titleFont = null;
   /** The chart. */
   private JFreeChart chart = null;
   static {
       labelFont = new Font("Helvetica", Font.PLAIN, 10);
       titleFont = new Font("Helvetica", Font.BOLD, 14);
   }
   /**
    * Creates a new demo.
    */
   public IntervalBarChartDemo1() {
       DefaultIntervalCategoryDataset data = null;
       final double[][] lows = Шаблон:-.0315, .0159, .0306, .0453, .0557;
       final double[][] highs = Шаблон:.1931, .1457, .1310, .1163, .1059;
       data = new DefaultIntervalCategoryDataset(lows, highs);
       data.setCategoryKeys(CATEGORIES);
       final String title = "Strategie Sicherheit";
       final String xTitle = "Zeitraum (in Jahren)";
       final String yTitle = "Performance";
       final CategoryAxis xAxis = new CategoryAxis(xTitle);
       xAxis.setLabelFont(titleFont);
       xAxis.setTickLabelFont(labelFont);
       xAxis.setTickMarksVisible(false);
       final NumberAxis yAxis = new NumberAxis(yTitle);
       yAxis.setLabelFont(titleFont);
       yAxis.setTickLabelFont(labelFont);
       yAxis.setRange(-0.2, 0.40);
       final DecimalFormat formatter = new DecimalFormat("0.##%");
       yAxis.setTickUnit(new NumberTickUnit(0.05, formatter));
       final IntervalBarRenderer renderer = new IntervalBarRenderer();
       renderer.setSeriesPaint(0, new Color(51, 102, 153));

// renderer.setLabelGenerator(new IntervalCategoryLabelGenerator());

       renderer.setItemLabelsVisible(true);
       renderer.setItemLabelPaint(Color.white);
       final ItemLabelPosition p = new ItemLabelPosition(
           ItemLabelAnchor.CENTER, TextAnchor.CENTER
       );
       renderer.setPositiveItemLabelPosition(p);
       
       final CategoryPlot plot = new CategoryPlot(data, xAxis, yAxis, renderer);
       plot.setBackgroundPaint(Color.lightGray);
       plot.setOutlinePaint(Color.white);
       plot.setOrientation(PlotOrientation.VERTICAL);
       
       this.chart = new JFreeChart(title, titleFont, plot, false);
       this.chart.setBackgroundPaint(Color.white);
   }
   // ****************************************************************************
   // * 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.
    *
    * @return the chart.
    */
   public JFreeChart getChart() {
       return this.chart;
   }
   /**
    * Starting point for the demo.
    *
    * @param args  ignored.
    */
   public static void main(final String[] args) {
       final IntervalBarChartDemo1 sample = new IntervalBarChartDemo1();
       final JFreeChart chart = sample.getChart();
       final ChartFrame frame = new ChartFrame("Interval Bar Chart Demo", chart);
       frame.pack();
       frame.setVisible(true);
   }

}

      </source>