public static Color [ ] topo ( int n , float alpha ) { int j = n / 3 ; int k = n / 3 ; int i = n - j - k ; Color [ ] palette = new Color [ n ] ; float h = 43 / 60.0f ; float hw = ( 31 / 60.0f - h ) / ( i - 1 ) ; int l = 0 ; for ( ; l < i ; l ++ ) { palette [ l ] = hsv ( h , 1.0f , 1.0f , alpha ) ; h += hw ; } h = 23 / 60.0f ; hw = ( 11 / 60.0f - h ) / ( j - 1 ) ; for ( ; l < i + j ; l ++ ) { palette [ l ] = hsv ( h , 1.0f , 1.0f , alpha ) ; h += hw ; } h = 10 / 60.0f ; hw = ( 6 / 60.0f - h ) / ( k - 1 ) ; float s = 1.0f ; float sw = ( 0.3f - s ) / ( k - 1 ) ; for ( ; l < n ; l ++ ) { palette [ l ] = hsv ( h , s , 1.0f , alpha ) ; h += hw ; s += sw ; } return palette ; }
Generate topo color palette .