Седан - Безье

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

{"lg_-1":[0,2,4,6],"lg_-1_6":[0,2,4,6],"lg_138":[null,2,4,6],"lg_138_6":[null,2,4,6]}

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

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

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