knotR: Knot Diagrams using Bezier Curves

`k9_23a` <-
structure(list(minsymvec = structure(c(-418.730434929828, -368.301554004944, 
-10.3746727303489, -176.68843431272, -482.96780768757, -256.548824805774, 
-104.083017774538, -7.41861815341469, 34.9222600913332, 50.2592797057156, 
10.0611878872754, 179.064707659294, 194.642783294425, -0.953898003118323, 
141.111646351783, -409.344756620837, -326.300826867974, -60.9135671636481, 
-273.277026646906, -497.327197577198, -194.930703394501, -70.2833927277824, 
37.9347157319397, 37.9931625513133, 57.9498467674585, 206.510426525912, 
95.2191697730516, 58.9680688273405, 156.285948995702, 171.689108769693
), .Names = c("handle_A11", "handle_A12", "handle_A23", "handle_A24", 
"handle_A25", "handle_A28", "handle_A29", "handle_A30", "handle_A41", 
"handle_A42", "handle_A53", "handle_A54", "handle_A55", "handle_A58", 
"handle_A59", "node11", "node12", "node23", "node24", "node25", 
"node28", "node29", "node41", "node42", "node53", "node54", "node55", 
"node58", "node59", "node60"), class = "minsymvec"), overunderobj = structure(c(7, 
3, 20, 23, 9, 26, 13, 29, 17, 2, 18, 5, 8, 14, 11, 28, 24, 22
), .Dim = c(9L, 2L)), symobj = structure(list(Mver = structure(c(29, 
24, 23, 25, 11, 12, 28, 10, 26, 27, 13, 8, 9, 14, 1, 6, 7, 5, 
19, 18, 2, 20, 4, 3, 17, 22, 21, 16), .Dim = c(14L, 2L)), xver = c(15, 
30), Mhor = structure(c(25, 24, 11, 12, 28, 29, 23, 30, 1, 7, 
2, 6, 18, 19, 5, 10, 9, 26, 27, 13, 14, 8, 15, 16, 22, 17, 21, 
3, 4, 20), .Dim = c(15L, 2L)), xhor = NULL, Mrot = NULL, exact_h = NULL, 
    exact_v = NULL, mcdonalds = FALSE, celtic = FALSE, reefknot = FALSE, 
    center_crossing = FALSE, indep = structure(c(FALSE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, 
    TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, 
    TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, TRUE, FALSE, 
    FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, FALSE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, 
    TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, 
    TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, TRUE, 
    TRUE), .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", 
    "handle_A49", "handle_A50", "handle_A51", "handle_A52", "handle_A53", 
    "handle_A54", "handle_A55", "handle_A56", "handle_A57", "handle_A58", 
    "handle_A59", "handle_A60", "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", "node49", "node50", "node51", "node52", "node53", 
    "node54", "node55", "node56", "node57", "node58", "node59", 
    "node60"))), .Names = c("Mver", "xver", "Mhor", "xhor", "Mrot", 
"exact_h", "exact_v", "mcdonalds", "celtic", "reefknot", "center_crossing", 
"indep"))), .Names = c("minsymvec", "overunderobj", "symobj"), class = "knot")