Java Tutorial Blog: Create a 3D bar chart in JSP page using JFreeChart

This Example shows you how to create a 3D bar chart in jsp page using JFreeChart. Code given below creates a bar chart of scores of two teams in matches.

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.

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

jsp3Dbarchart.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.axis.*" %>
<%@ page  import="org.jfree.chart.entity.*" %>
<%@ page  import="org.jfree.chart.labels.*" %>
<%@ page  import="org.jfree.chart.plot.*" %>
<%@ page  import="org.jfree.chart.renderer.category.*" %>
<%@ page  import="org.jfree.chart.urls.*" %>
<%@ page  import="org.jfree.data.category.*" %>
<%@ page  import="org.jfree.data.general.*" %>

<%
  final double[][] data = new double[][]{
 {210, 300, 320, 265, 299},
 {200, 304, 201, 201, 340}
 };

 final CategoryDataset dataset =
   DatasetUtilities.createCategoryDataset("Team ", "", data);

 JFreeChart chart = null;
 BarRenderer renderer3D = null;
 CategoryPlot plot = null;


 final CategoryAxis3D categoryAxis = new CategoryAxis3D("Match");
 final ValueAxis valueAxis = new NumberAxis3D("Run");
 renderer3D = new BarRenderer3D();

 plot = new CategoryPlot(dataset, categoryAxis, valueAxis, renderer3D);
 plot.setOrientation(PlotOrientation.VERTICAL);
 chart = new JFreeChart("Srore Bord", JFreeChart.DEFAULT_TITLE_FONT,
  plot, true);

 chart.setBackgroundPaint(new Color(249, 231, 236));

  try {
 final ChartRenderingInfo info = new ChartRenderingInfo
 (new StandardEntityCollection());

final File file1 = new File("../webapps/jspchart/web/3dbarchart.png");
 ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, 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="3dbarchart.png"
  WIDTH="600" HEIGHT="400" BORDER="0" USEMAP="#chart">
  </body>
</html>

Java Tutorial Blog

Friday, March 29, 2013

Create a 3D bar chart in JSP page using JFreeChart

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