// 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

   import com.sas.graphics.components.linechart.LineChart;
   import com.sas.graphics.components.linechart.LineChartModel;
   import com.sas.graphics.components.linechart.LineChartTableDataModel;
   import com.sas.graphics.components.AnalysisVariable;
   import com.sas.graphics.components.ClassificationVariable;
   import com.sas.graphics.components.DataElementStyles;
   import com.sas.graphics.components.MarkerStyle;
   import java.awt.BorderLayout;
   import java.awt.Color;
   import java.awt.Container;
   import java.awt.event.WindowAdapter;
   import java.awt.event.WindowEvent;
   import javax.swing.JFrame;
   import javax.swing.JPanel;
   import javax.swing.table.DefaultTableModel;

   public class ChangeInterpolation extends JPanel  {
     private ChangeInterpolation  theApp;
     public ChangeInterpolation () {
        setLayout(new BorderLayout());

     // Create a LineChart and a data source 
        LineChart lineChart=new LineChart();
        SampleData dataTable=new SampleData();

     // 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);

     // Create a data model and attach the data source
        LineChartTableDataModel dataModel=
                  new LineChartTableDataModel();
        dataModel.setModel(dataTable);

     // Assign the Category and Response variable roles
        dataModel.setCategoryVariable(
                  new ClassificationVariable("Month"));
        dataModel.setResponseVariable(
                  new AnalysisVariable("Temp"));
     // Assign the data model to the LineChart
        lineChart.setDataModel(dataModel);

     // Set a graph title
        lineChart.getTitle1().setText(
                  "Raleigh Monthly Temperatures");
        add(lineChart, BorderLayout.CENTER);
      }
  // Create the data source
     static private class SampleData extends DefaultTableModel {
       private static Class  columnClass[]={
                   Double.class, Double.class};
       private static String columnNames[]={
                  "Month","Temp"};
         public SampleData() {
	   super();
           Object data[][] = {
             {new Double(1),  new Double(40.5) }, 
             {new Double(2),  new Double(42.2) }, 
             {new Double(3),  new Double(49.2) }, 
             {new Double(4),  new Double(59.5) }, 
             {new Double(5),  new Double(67.4) }, 
             {new Double(6),  new Double(74.4) }, 
             {new Double(7),  new Double(77.5) }, 
             {new Double(8),  new Double(76.5) }, 
             {new Double(9),  new Double(70.6) }, 
             {new Double(10), new Double(60.2) }, 
             {new Double(11), new Double(50.0) }, 
             {new Double(12), new Double(41.2) } 
           };
           setDataVector(data, columnNames);
         }
         public Class getColumnClass(int column) {
           return columnClass[column];
         }
       }
      public static void main(String[] args) {
      	  JFrame frame = new JFrame("BIP Graph Sample");
      	  Container container = frame.getContentPane();
          container.setLayout(new BorderLayout());
          container.setBackground(Color.white);

          JPanel bipPanel = new JPanel();
          bipPanel.setLayout(new BorderLayout());
          ChangeInterpolation  bipGraphSample = new ChangeInterpolation ();

          bipPanel.add(bipGraphSample, BorderLayout.CENTER);
          container.add(bipPanel, BorderLayout.CENTER);

          frame.setSize(600,450);
          frame.addWindowListener(new WindowAdapter() {
              public void windowClosing(WindowEvent e) {
                     System.exit(0);
              }
          } );
          frame.setVisible(true);
      }
   }