Create multiple pie chart in single frame using JFreeChart

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Create multiple pie chart in single frame using JFreeChart

This Example shows you how to create a multiple pie charts in a single frame in jsp page using JFreeChart.

This Example shows you how to create a multiple pie charts in a single frame in jsp page using JFreeChart.

Create multiple pie chart in single frame using JFreeChart

     

This Example shows you how to create a multiple pie charts in a single frame in jsp page using JFreeChart. Code given below creates a simple pie charts for given values. In the code given below we have extended class ApplicationFrame to create a frame and also pass a string value to the constructor of ApplicationFrame class by using super keyword that will be name of the created frame.

Methods used in this example are described below:

pack(): This method invokes the layout manager.

centerFrameOnScreen(): This method is used for the position of the frame in the middle of the screen.

setVisible(): This method is used for display frame on the screen.

createCategoryDataset(): This method is used to create the instance of CategoryDataset Interface and that contains a copy of the data in an array.

createMultiplePieChart(): This method is used to create bar chart for given values. It takes title, category axis label, dataset, legend, tool tips and urls as parameters.

saveChartAsPNG(): This method is used to save chart in to png format.

jspmultilepiechart.jsp

<%@page contentType="text/html" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">


<%@ page  import="java.awt.*" %>
<%@ page  import="java.io.*" %>
<%@ page  import="org.jfree.chart.*" %>
<%@ page  import="org.jfree.chart.entity.*" %>
<%@ page  import="org.jfree.chart.plot.*"%>
<%@ page  import ="org.jfree.data.category.*"%>
<%@ page  import ="org.jfree.data.general.*"%>
<%@ page  import ="org.jfree.util.*"%>

<%
  final double[][] data = new double[][]{
  {3.0, 4.0, 3.0, 5.0},
  {5.0, 7.0, 6.0, 8.0},
  {5.0, 7.0, 3.0, 8.0},
  {1.0, 2.0, 3.0, 4.0},
  {2.0, 3.0, 2.0, 3.0}
  };

  final CategoryDataset dataset = 
  DatasetUtilities.createCategoryDataset(
  "Region ", "Sales/Q", data);


 final JFreeChart chart = 
   ChartFactory.createMultiplePieChart(
 "Multiple Pie Chart", dataset, TableOrder.BY_ROW, 
 true, true, false);

 chart.setBackgroundPaint(new Color(249, 231, 236));
  try {
 final ChartRenderingInfo info = new ChartRenderingInfo
   (new StandardEntityCollection());

  final File file1 = new File("../webapps/jspchart/
  web/multipiechart.png");

  ChartUtilities.saveChartAsPNG(
  file1, chart, 800, 600, info);
  } catch (Exception e) {
  out.println(e);
  }
%>

<html>
  <head>
  <meta http-equiv="Content-Type" 
   content="text/html; charset=UTF-8">
  <title>JSP Page</title>
  </head>
  <body>
  <IMG SRC="multipiechart.png" 
   WIDTH="600" HEIGHT="400" BORDER="0" 
   USEMAP="#chart">
  </body>
</html>


Output:



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