<%// ChangeInterpolation:%>

<%
// To change a LineChart's interpolation method
// 1) Get the plot's graph model
// 2) Use the model to get the DataElementStyles
// 3) Use the DataElementStyles to get the array of MarkerStyles
// 4) Use a MarkerStyle element to specify the interpolation method
%>

<%@page import="com.sas.models.SimpleTable,
        com.sas.swing.models.TableModelAdapter,
        com.sas.servlet.tbeans.graphics.html.LineChart,
        com.sas.graphics.components.linechart.LineChartModel,
        com.sas.graphics.components.linechart.LineChartTableDataModel,
        com.sas.graphics.components.AnalysisVariable,
        com.sas.graphics.components.ClassificationVariable,
        com.sas.graphics.components.DataElementStyles,
        com.sas.graphics.components.MarkerStyle"
%>
<%
  // Create a LineChart instance
     LineChart lineChart = new LineChart();

  // Create a simple SAS table and add data to it
     SimpleTable table = new SimpleTable();
%>
         <%@ include file="SampleData.jsp" %>

<%
  // 1) Get the plot's graph model
        LineChartModel graphModel=lineChart.getGraphModel();

  // 2) Use the model to get the DataElementStyles
        DataElementStyles des = graphModel.getDataElementStyles() ;

  // 3) Use the DataElementStyles to get the array of MarkerStyles
        MarkerStyle[] markerStyles = des.getMarkerStyles();

  // 4) Use a MarkerStyle element to specify the interpolation method
        markerStyles[0].setInterpolation(MarkerStyle.INTERPOLATION_STEP_RIGHT);
        markerStyles[0].setVisible(true);

  // 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 to it
     LineChartTableDataModel lineChartDataModel=
        new LineChartTableDataModel(tma);

  // Assign the Category and Response variable roles
     lineChartDataModel.setCategoryVariable(
        new ClassificationVariable("Month"));
     lineChartDataModel.setResponseVariable(
        new AnalysisVariable("Temp"));

  // Assign the data model to the BarChart
     lineChart.setDataModel(lineChartDataModel);

  // Set a title
     lineChart.getTitle1().setText("Raleigh Monthly Temperatures");

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

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