question: private double maxDistLevel ( DBID id , int level ) { final NumberVector obj = relation . get ( id ) ; final double r = 1.0 / ( 1 << ( level - 1 ) ) ; double dist ; if ( t == 1.0 ) { dist = 0.0 ; for ( int dim = 0 ; dim < d ; dim ++ ) { final double p_m_r = getDimForObject ( obj , dim ) % r ; dist += Math . max ( p_m_r , r - p_m_r ) ; } } else if ( t == 2.0 ) { dist = 0.0 ; for ( int dim = 0 ; dim < d ; dim ++ ) { final double p_m_r = getDimForObject ( obj , dim ) % r ; double a = Math . max ( p_m_r , r - p_m_r ) ; dist += a * a ; } dist = Math . sqrt ( dist ) ; } else if ( ! Double . isInfinite ( t ) ) { dist = 0.0 ; for ( int dim = 0 ; dim < d ; dim ++ ) { final double p_m_r = getDimForObject ( obj , dim ) % r ; dist += Math . pow ( Math . max ( p_m_r , r - p_m_r ) , t ) ; } dist = Math . pow ( dist , 1.0 / t ) ; } else { dist = Double . NEGATIVE_INFINITY ; for ( int dim = 0 ; dim < d ; dim ++ ) { final double p_m_r = getDimForObject ( obj , dim ) % r ; dist = Math . max ( dist , Math . max ( p_m_r , r - p_m_r ) ) ; } } return dist * diameter ; }
target:  maxDist function calculate the maximal Distance from Vector p to the border of the corresponding r-region at the given level