<%// ChangeLine:%>

<%
// A graph's display properties (marker symbol, axis characteristics, and 
// so on) are general properties that are defined in the graph's model. The
// line style for a needle lines is defined as a LineStyle that
// is applied to the plot needles. Thus, to change the line style for needles,
//    1) Get the ScatterPlot's model
//    2) Define a LineStyle for the needle lines
//    3) Set the LineStyle by calling setNeedleLineStyle()
%>

<%@page import="
  com.sas.servlet.tbeans.graphics.html.ScatterPlot,
  com.sas.graphics.components.scatterplot.ScatterPlotTableDataModel,
  com.sas.graphics.components.ClassificationVariable,
  com.sas.graphics.components.PlotVariable,
  com.sas.graphics.components.DataElementStyles,
  com.sas.graphics.components.GraphConstants,
  com.sas.graphics.components.MarkerStyle,
  com.sas.graphics.components.scatterplot.ScatterPlotModel,
  com.sas.graphics.components.LineStyle,
  com.sas.measures.BaseLength,
  com.sas.swing.models.TableModelAdapter,
  com.sas.models.SimpleTable,
  java.awt.Color"
%>

<%
 // Create a ScatterPlot instance
    ScatterPlot scatterPlot = new ScatterPlot();

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

<%@ include file="HeightWeightData.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
    ScatterPlotTableDataModel dataModel=
      new ScatterPlotTableDataModel(tma);

 // 1) Get the plot's graph model
    ScatterPlotModel graphModel=scatterPlot.getGraphModel();
     
 // 2) Define a LineStyle for the needle lines
    LineStyle lineStyle = new LineStyle(
      Color.red,
      new BaseLength(3, "pt"),
      GraphConstants.TRUE);

 // 3) Set the LineStyle on the needles
    graphModel.setNeedleLineStyle(lineStyle);

 // Enable interpolations and get the DataElementStyles
    graphModel.setInterpolationEnabled(true);
    DataElementStyles des = graphModel.getDataElementStyles() ;

 // Get the array of MarkerStyles
    MarkerStyle[] markerStyles = des.getMarkerStyles();

 // Specify the interpolation method
    markerStyles[0].setInterpolation(MarkerStyle.INTERPOLATION_VERTICAL_NEEDLES);

 // Assign the X and Y variable roles
    dataModel.setXVariable(
      new PlotVariable("Height"));
    dataModel.setYVariable(
      new PlotVariable("Weight"));
    dataModel.setGroupVariable(
      new ClassificationVariable("Gender"));

 // Assign the data model to the ScatterPlot
    scatterPlot.setDataModel(dataModel);

 // Set a graph title
    scatterPlot.getTitle1().setText(
     "Relation of Weight to Height");

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

 // Write the plot to the display
    scatterPlot.write(out);
%>