JFreeChart: Stacked Area 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.]
*
* -------------------------
* StackedAreaChartDemo.java
* -------------------------
* (C) Copyright 2002-2004, by Object Refinery Limited and Contributors.
*
* Original Author: David Gilbert (for Object Refinery Limited);
* Contributor(s): -;
*
* $Id: StackedAreaChartDemo.java,v 1.23 2004/04/29 16:24:03 mungady Exp $
*
* Changes
* -------
* 23-Sep-2002 : Version 1 (DG);
* 11-Oct-2002 : Fixed errors reported by Checkstyle (DG);
*
*/
package org.jfree.chart.demo;
import java.awt.Color;
import org.jfree.chart.ChartFactory;
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.plot.CategoryPlot;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.chart.renderer.category.CategoryItemRenderer;
import org.jfree.data.category.CategoryDataset;
import org.jfree.data.general.DatasetUtilities;
import org.jfree.ui.ApplicationFrame;
import org.jfree.ui.RefineryUtilities;
/**
* A simple demonstration application showing how to create a stacked area chart using data from a
* {@link CategoryDataset}.
*/
public class StackedAreaChartDemo extends ApplicationFrame {
/**
* Creates a new demo.
*
* @param title the frame title.
*/
public StackedAreaChartDemo(final String title) {
super(title);
CategoryDataset dataset = createDataset();
JFreeChart chart = createChart(dataset);
final ChartPanel chartPanel = new ChartPanel(chart);
chartPanel.setPreferredSize(new java.awt.Dimension(500, 270));
setContentPane(chartPanel);
}
/**
* Creates a sample dataset.
*
* @return A sample dataset.
*/
public CategoryDataset createDataset() {
final double[][] data = new double[][] {
{1.0, 4.0, 3.0, 5.0, 5.0, 7.0, 7.0, 8.0 },
{5.0, 7.0, 6.0, 8.0, 4.0, 4.0, 2.0, 1.0 },
{4.0, 3.0, 2.0, 3.0, 6.0, 3.0, 4.0, 3.0 }
};
final CategoryDataset dataset = DatasetUtilities.createCategoryDataset(
"Series ", "Type ", data
);
return dataset;
}
/**
* Creates a sample chart.
*
* @param dataset the dataset.
*
* @return A sample chart.
*/
public JFreeChart createChart(CategoryDataset dataset) {
final JFreeChart chart = ChartFactory.createStackedAreaChart(
"Stacked Area Chart", // chart title
"Category", // domain axis label
"Value", // range axis label
dataset, // data
PlotOrientation.VERTICAL, // orientation
true, // include legend
true,
false
);
chart.setBackgroundPaint(Color.white);
final CategoryPlot plot = (CategoryPlot) chart.getPlot();
plot.setForegroundAlpha(0.5f);
plot.setBackgroundPaint(Color.lightGray);
plot.setDomainGridlinePaint(Color.white);
plot.setRangeGridlinePaint(Color.white);
final CategoryAxis domainAxis = plot.getDomainAxis();
domainAxis.setLowerMargin(0.0);
domainAxis.setUpperMargin(0.0);
// change the auto tick unit selection to integer units only...
final NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis();
rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits());
final CategoryItemRenderer renderer = plot.getRenderer();
renderer.setItemLabelsVisible(true);
return chart;
}
// ****************************************************************************
// * 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. *
// ****************************************************************************
/**
* Starting point for the demonstration application.
*
* @param args ignored.
*/
public static void main(final String[] args) {
final StackedAreaChartDemo demo = new StackedAreaChartDemo("Stacked Area Chart Demo");
demo.pack();
RefineryUtilities.centerFrameOnScreen(demo);
demo.setVisible(true);
}
}
jfreechart-1.0.0-rc1.zip( 3,559 k)Related examples in the same category