@Override
  public double getWeight(double distance, double max, double stddev) {
    if(max <= 0) {
      return 1.0;
    }
    double relativedistance = distance / max;
    return 1.0 - 0.9 * relativedistance * relativedistance;
  }
@ Override public double getWeight ( double distance , double max , double stddev ) { if ( max <= 0 ) { return 1.0 ; } double relativedistance = distance / max ; return 1.0 - 0.9 * relativedistance * relativedistance ; }
Evaluate quadratic weight. stddev is ignored.