knotR: Knot Diagrams using Bezier Curves

`k8_18` <- 
structure(list(minsymvec = structure(c(-9.86487865064467, -29.2978768184496, 
16.2743734510498, -93.3911743024028, 124.826042853211, 165.933330395719, 
405.727705898251, -67.3472545444764, -102.684514197037, -154.228659692936, 
67.3433118529314, 190.532310634086, 406.995942525448, 336.942318477948
), .Names = c("handle_A2", "handle_A9", "handle_A17", "handle_A18", 
"handle_A26", "handle_A33", "handle_A42", "node2", "node9", "node18", 
"node26", "node33", "node41", "node42"), class = "minsymvec"), 
    overunderobj = structure(c(16, 2, 20, 4, 22, 8, 10, 14, 1, 
    9, 3, 13, 7, 15, 19, 21), .Dim = c(8L, 2L)), symobj = structure(list(
        Mver = structure(c(18, 9, 2, 16, 1, 8), .Dim = c(3L, 
        2L)), xver = c(5, 17), Mhor = NULL, xhor = c(11, 23), 
        Mrot = structure(c(17, 16, 18, 1, 9, 2, 23, 22, 24, 7, 
        15, 8, 5, 4, 6, 13, 21, 14, 11, 10, 12, 19, 3, 20), .Dim = c(6L, 
        4L)), exact_h = NULL, exact_v = NULL, mcdonalds = FALSE, 
        celtic = FALSE, reefknot = FALSE, center_crossing = FALSE, 
        indep = structure(c(FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE), .Names = c("handle_A1", "handle_A2", 
        "handle_A3", "handle_A4", "handle_A5", "handle_A6", "handle_A7", 
        "handle_A8", "handle_A9", "handle_A10", "handle_A11", 
        "handle_A12", "handle_A13", "handle_A14", "handle_A15", 
        "handle_A16", "handle_A17", "handle_A18", "handle_A19", 
        "handle_A20", "handle_A21", "handle_A22", "handle_A23", 
        "handle_A24", "handle_A25", "handle_A26", "handle_A27", 
        "handle_A28", "handle_A29", "handle_A30", "handle_A31", 
        "handle_A32", "handle_A33", "handle_A34", "handle_A35", 
        "handle_A36", "handle_A37", "handle_A38", "handle_A39", 
        "handle_A40", "handle_A41", "handle_A42", "handle_A43", 
        "handle_A44", "handle_A45", "handle_A46", "handle_A47", 
        "handle_A48", "node1", "node2", "node3", "node4", "node5", 
        "node6", "node7", "node8", "node9", "node10", "node11", 
        "node12", "node13", "node14", "node15", "node16", "node17", 
        "node18", "node19", "node20", "node21", "node22", "node23", 
        "node24", "node25", "node26", "node27", "node28", "node29", 
        "node30", "node31", "node32", "node33", "node34", "node35", 
        "node36", "node37", "node38", "node39", "node40", "node41", 
        "node42", "node43", "node44", "node45", "node46", "node47", 
        "node48"))), .Names = c("Mver", "xver", "Mhor", "xhor", 
    "Mrot", "exact_h", "exact_v", "mcdonalds", "celtic", "reefknot", 
    "center_crossing", "indep"))), .Names = c("minsymvec", "overunderobj", 
"symobj"), class = "knot")