<%// SubgroupData:%>

<%
// To generate a pie chart that displays subgroups (segments) within
// each slice, assign the Subgroup variable role to a categorical
// variable whose unique values can be used to form the pie segments. 
%>

<%@page import="
  com.sas.servlet.tbeans.graphics.html.PieChart,
  com.sas.graphics.components.piechart.PieChartTableDataModel,
  com.sas.graphics.components.AnalysisVariable,
  com.sas.graphics.components.ClassificationVariable,
  com.sas.swing.models.TableModelAdapter,
  com.sas.models.SimpleTable"
%>

<%
 // Create a PieChart instance
    PieChart pieChart = new PieChart();

 // Create a simple SAS table and add data to it
    SimpleTable table = new SimpleTable();
%>

<%@ include file="EnergyData.jsp" %>

<% 
 // Convert a simple SAS table to a simple Java Swing table
    TableModelAdapter tma = new TableModelAdapter(table);
    tma.setFormattedDataUsed(false);

 // Create a data model and attach the data source
    PieChartTableDataModel dataModel=
      new PieChartTableDataModel(tma);

 // Assign the data model to the PieChart
    pieChart.setDataModel(dataModel);

 // Hide the legend
    pieChart.getGraphModel().getLegendModel().setVisible(false);

 // Assign the Category and Response variable roles
    dataModel.setCategoryVariable(
      new ClassificationVariable("EnergyType"));
    dataModel.setResponseVariable(
      new AnalysisVariable("Produced"));
 // Assign the Subgroup role to a categorical variable
    dataModel.setSubgroupVariable(
      new ClassificationVariable("Year"));

 // Set a title
    pieChart.getTitle1().setText("Energy Production");

 // Set HTTP-specific response and request functionality
    pieChart.setResponse(response);
    pieChart.setRequest(request);

 // Write the chart to the display
    pieChart.write(out);
%>