    <%
      // Copy this code definition to a file named SplineRiskLines.jsp
      // so it can be included in the RiskMapPlot sample program for
      // the Basic Spline Risk Map.

      // This code creates a list of points that the SplineRiskMap will use to
      // create a spline that represents the boundary of a risk category.  The points
      // are calculated to represent a width and a height along the bmi curve.

         final int POINTS_PER_LINE = 5;
         final double MIN_WEIGHT   = 25;
         final double MAX_WEIGHT   = 400;

         final double UNDERWEIGHT_LIMIT = 18.5;
         final double NORMAL_LIMIT      = 25;
         final double OVERWEIGHT_LIMIT  = 30;

      // Create line1 for an UNDERWEIGHT_LIMIT
         ArrayList<Point2D.Double> line1 = new ArrayList<Point2D.Double>();
         double weight1 = MIN_WEIGHT;
         double weightInc1 = (MAX_WEIGHT - MIN_WEIGHT) / (POINTS_PER_LINE-1);

         for (int i=0; i<POINTS_PER_LINE; i++)
         {
           double height1 = Math.sqrt(weight1 / (UNDERWEIGHT_LIMIT/703d));
           line1.add(new Point2D.Double(weight1, height1));
           weight1 += weightInc1;
         }

      // Create line2 for a NORMAL_LIMIT
         ArrayList<Point2D.Double> line2 = new ArrayList<Point2D.Double>();
         double weight2 = MIN_WEIGHT;
         double weightInc2 = (MAX_WEIGHT - MIN_WEIGHT) / (POINTS_PER_LINE-1);

         for (int i=0; i<POINTS_PER_LINE; i++)
         {
           double height2 = Math.sqrt(weight2 / (NORMAL_LIMIT/703d));
           line2.add(new Point2D.Double(weight2, height2));
           weight2 += weightInc2;
         }

      // Create line3 for an OVERWEIGHT_LIMIT
         ArrayList<Point2D.Double> line3 = new ArrayList<Point2D.Double>();
         double weight3 = MIN_WEIGHT;
         double weightInc3 = (MAX_WEIGHT - MIN_WEIGHT) / (POINTS_PER_LINE-1);

         for (int i=0; i<POINTS_PER_LINE; i++)
         {
           double height3 = Math.sqrt(weight3 / (OVERWEIGHT_LIMIT/703d));
           line3.add(new Point2D.Double(weight3, height3));
           weight3 += weightInc3;
         }
    %>