Creating A 3D Pie Chart In Java Using JFreeChart [Example Source Code]

JFreeChart is an open-source framework for the programming language Java, which allows the creation of complex charts in a simple way.

JFreeChart also works with GNU Classpath, a free software implementation of the standard class library for the Java programming language.

Following chart types are supported:

  • * X-Y charts (line, spline and scatter)
  • * Pie charts
  • * Gantt charts
  • * Bar charts (horizontal and vertical, stacked and independent)
  • * Single valued (thermometer, compass, speedometer)

In the following tutorial, I will show you how to create a 3D Pie Chart using JFreeChart. If you do not have the JFreeChart library and API, you can download it from their website www.jfree.org

package com.kushal.charts;
/**
 * @Author Kushal Paudyal
 * www.sanjaal.com/java
 * Last Modfied On: 2009-09-23
 * 
 * Using JFreeChart to create 3D Pie Chart
 */
import java.awt.Color;
import java.io.File;
import java.io.IOException;

import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PiePlot3D;
import org.jfree.data.general.DefaultPieDataset;
import org.jfree.data.general.PieDataset;

public class My3DPieChart {
	private static final long serialVersionUID = -8625975218180144099L;

	private PieDataset createPieDataSet() {
		DefaultPieDataset pieDataset = new DefaultPieDataset();
		/**
		 * Filling the data Visit of Sanjaal.com on a random day by Browser
		 */
		pieDataset.setValue("MS Internet Explorer", 184707);
		pieDataset.setValue("Firefox", 144556);
		pieDataset.setValue("Google Chrome", 21638);
		pieDataset.setValue("Opera", 21609);
		pieDataset.setValue("Unknown", 17916);
		pieDataset.setValue("Safari", 10850);
		pieDataset.setValue("Mozilla", 7081);
		pieDataset.setValue("Netscape", 1010);
		pieDataset.setValue("Curl", 405);
		pieDataset.setValue("LibWWW", 121);

		return pieDataset;

	}

	private JFreeChart create3DPieChart(PieDataset dataset) {

		/**
		 * createPieChart3D method Parameters: --java.lang.String title,
		 * --PieDataset dataset, --boolean legend, --boolean tooltips, --boolean
		 * urls
		 */
		JFreeChart chart = ChartFactory.createPieChart3D(
				"Sanjaal.com Visits By Browser", dataset, true, true, true);

		PiePlot3D p = (PiePlot3D) chart.getPlot();
		p.setForegroundAlpha(0.5f);
		p.setBackgroundAlpha(0.2f);

		chart.setBackgroundPaint(Color.white);
		chart.setAntiAlias(true);
		chart.setBorderVisible(true);

		return chart;

	}

	public void saveChart(JFreeChart chart, String fileLocation) {
		String fileName = fileLocation;
		try {
			/**
			 * This utility saves the JFreeChart as a JPEG First Parameter:
			 * FileName Second Parameter: Chart To Save Third Parameter: Height
			 * Of Picture Fourth Parameter: Width Of Picture
			 */
			ChartUtilities.saveChartAsJPEG(new File(fileName), chart, 800, 600);
		} catch (IOException e) {
			e.printStackTrace();
			System.err.println("Problem occurred creating chart.");
		}
	}

	public static void main(String[] args) {
		My3DPieChart chartCreator = new My3DPieChart();

		/** Create a PieDataSet* */
		PieDataset pieDataset = chartCreator.createPieDataSet();

		/** Create 3D Pie Chart based on this dataset* */
		JFreeChart chart = chartCreator.create3DPieChart(pieDataset);

		/** Define a file location to save this chart */
		String fileLocation = "C:/temp/my3DPieChart.jpg";

		/** Save the chart to the file system* */
		chartCreator.saveChart(chart, fileLocation);

		System.out.println("3D Pie Chart has been created successfully");
		System.out.println("Chart has been saved to: " + fileLocation);
	}

	/*
	 * SANJAAL CORPS MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE
	 * SUITABILITY OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT
	 * LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
	 * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SANJAAL CORPS SHALL NOT BE
	 * LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING,
	 * MODIFYING OR DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
	 * 
	 * THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
	 * CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
	 * PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
	 * NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
	 * SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
	 * SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
	 * PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES"). SANJAAL CORPS
	 * SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
	 * HIGH RISK ACTIVITIES.
	 */
}

The following is the output if this program:

3D Pie Chart has been created successfully
Chart has been saved to: C:/temp/my3DPieChart.jpg

Generated PieChart for the data provided looks like this:

Creating Category Chart Using JFreeChart

In this basic tutorial, I am walking through how to create category chart using JFreeChart. The program uses the following two jar files, and they come with the JFreeChart itself. You can download JFreeChart at their official website www.jfreechart.org

  • jcommon-1.0.15.jar
  • jfreechart-1.0.12.jar

The program also demonstrates how easily you can save a generated chart to your computer using the Charts Utilities from JFreeChart

package com.kushal.utilities;

import java.io.File;
import java.io.IOException;
import java.util.Date;
import org.jfree.chart.ChartFactory;
import org.jfree.chart.ChartUtilities;
import org.jfree.chart.JFreeChart;
import org.jfree.chart.plot.PlotOrientation;
import org.jfree.data.category.DefaultCategoryDataset;
import org.jfree.data.time.Day;
import org.jfree.data.time.TimeSeries;
import org.jfree.data.time.TimeSeriesCollection;

public class CategoryChartDemo {

	public void createCategoryChart()
	{

		DefaultCategoryDataset  categoryDataset = new DefaultCategoryDataset();

		//Enrollment in Bachelors level
		categoryDataset.setValue(2003, "Bachelors", "2005");
		categoryDataset.setValue(1350, "Bachelors", "2006");
		categoryDataset.setValue(2408, "Bachelors", "2007");
		categoryDataset.setValue(2607, "Bachelors","2008");

		//Enrollment in Masters level
		categoryDataset.setValue(985, "Masters", "2005");
		categoryDataset.setValue(1400, "Masters", "2006");
		categoryDataset.setValue(1634, "Masters", "2007");
		categoryDataset.setValue(978, "Masters", "2008");

		//Enrollment in PhD level
		categoryDataset.setValue(356, "PhD", "2005");
		categoryDataset.setValue(390, "PhD", "2006");
		categoryDataset.setValue(350, "PhD", "2007");
		categoryDataset.setValue(687, "PhD", "2008");

		JFreeChart chart = ChartFactory.createBarChart3D
				     ("Program Enrollment (c) www.sanjaal.com", // Title
				      "Year",              // X-Axis label
				      "Number of Students",// Y-Axis label
				      categoryDataset,         // Dataset
				      PlotOrientation.VERTICAL,
				      true,                     // Show legend
				      true,
				      false
				     );

		saveChart(chart);
	}

	public void saveChart(JFreeChart chart)
	{
		String fileName="C:/Users/kushal/Desktop/myCategoryChart.jpg";
		try {
			/**
			 * This utility saves the JFreeChart as a JPEG
			 * First Parameter: FileName
			 * Second Parameter: Chart To Save
			 * Third Parameter: Height Of Picture
			 * Fourth Parameter: Width Of Picture
			 */
	    ChartUtilities.saveChartAsJPEG(new File(fileName), chart, 800, 600);
	} catch (IOException e) {
		e.printStackTrace();
	    System.err.println("Problem occurred creating chart.");
	}
	}
	public static void main(String args [])
	{
		new CategoryChartDemo().createCategoryChart();

	}

}


The following is the output when you run this program: