class SeriesSquare extends Series{

 int dimension;
 float _x;
 float _y;
 
 
 SeriesSquare(String _ID, String _Title, int[] _Dates, int _Items, float _Metres, String[][] _Links, ArrayList ParentList){
    super(_ID, _Title, _Dates, _Items, _Metres, _Links, ParentList); // call the superclass constructor
   
   dimension = 1 + int(sqrt(Metres)*sq_scale);
   _x = 0;
   _y = 0;
 }
 
   public int compareTo(Object anotherSeries)  {
    
     //if (sort_by == 2){
      int anotherSeriesDim = ((SeriesSquare) anotherSeries).dimension;
      return anotherSeriesDim - this.dimension;    
   // } 

  }
}

class DimComparator implements Comparator{
    int compare(Object O1, Object O2){
    SeriesSquare S1 = (SeriesSquare) O1;
    SeriesSquare S2 = (SeriesSquare) O2; 
    int comp = (S2.dimension - S1.dimension);
    return comp;
  }
}