Булон - Безье

{"lg_-1":[1,1,2,4],"lg_-1_6":[1,1,2,4],"lg_138":[1,1,2,4],"lg_138_6":[1,1,2,4]}

{"lg_-1":[2,1,3,6],"lg_-1_6":[2,1,3,6],"lg_138":[2,1,3,6],"lg_138_6":[2,1,3,6]}

{"lg_-1":[3,1,2,6],"lg_-1_6":[3,1,2,6],"lg_138":[3,1,2,6],"lg_138_6":[3,1,2,6]}

{"lg_-1":[2,0,1,3],"lg_-1_6":[2,0,1,3],"lg_138":[2,null,1,3],"lg_138_6":[2,null,1,3]}

{"lg_-1":[1,0,2,3],"lg_-1_6":[1,0,2,3],"lg_138":[1,null,2,3],"lg_138_6":[1,null,2,3]}