JFreeChart: Waterfall Chart Demo
/* ===========================================================
* 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.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. *
// ****************************************************************************
/**
* 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);
}
}
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