docs: private double[] determineMinMaxDistance(Relation<ParameterizationFunction> relation, int dimensionality) {
      double[] min = new double[dimensionality - 1];
      double[] max = new double[dimensionality - 1];
      Arrays.fill(max, Math.PI);
      HyperBoundingBox box = new HyperBoundingBox(min, max);
  
      double d_min = Double.POSITIVE_INFINITY, d_max = Double.NEGATIVE_INFINITY;
      for(DBIDIter iditer = relation.iterDBIDs(); iditer.valid(); iditer.advance()) {
        ParameterizationFunction f = relation.get(iditer);
        HyperBoundingBox minMax = f.determineAlphaMinMax(box);
        double f_min = f.function(SpatialUtil.getMin(minMax));
        double f_max = f.function(SpatialUtil.getMax(minMax));
  
        d_min = Math.min(d_min, f_min);
        d_max = Math.max(d_max, f_max);
      }
      return new double[] { d_min, d_max };
    }