knotR: Knot Diagrams using Bezier Curves

`k9_31` <-
structure(list(minsymvec = structure(c(-7.8788765621403, -178.61159571887, 
-413.191083088589, -367.196315142618, -145.854087743138, -172.192243933334, 
-137.016875709949, -6.84286942359435, -203.201162604789, -364.933389286743, 
-358.737498456237, -98.3745883214587, -190.756784744563, -110.911787335206, 
2.79404709715639, 246.025782831464, 116.277595690088, -121.665483935388, 
-218.075007693327, -305.815358323048, -190.260488154657, -12.78426018966, 
-78.3980621575474, -257.381459466482, -425.491300652669, -279.841253426457, 
-148.55321099815, -170.254530655203, -71.5257895713888, -268.021444388389, 
-370.894154802721, -278.425521611551, -150.569352840765, -76.2591717450062, 
88.2645971036288, 227.886005942916, 15.4058222157377, -190.719491445172, 
-389.159933659555, -253.921103820069, -277.002147649638, -135.794052749052, 
61.5566766259419, 166.792982893216), .Names = c("handle_A5", 
"handle_A6", "handle_A7", "handle_A8", "handle_A9", "handle_A10", 
"handle_A11", "handle_A18", "handle_A19", "handle_A20", "handle_A21", 
"handle_A22", "handle_A27", "handle_A28", "handle_A29", "handle_A30", 
"handle_A31", "handle_A32", "handle_A40", "handle_A41", "handle_A42", 
"handle_A43", "node5", "node6", "node7", "node8", "node9", "node10", 
"node18", "node19", "node20", "node21", "node27", "node28", "node29", 
"node30", "node31", "node32", "node33", "node40", "node41", "node42", 
"node43", "node44"), class = "minsymvec"), overunderobj = structure(c(14, 
2, 12, 5, 10, 7, 22, 19, 17, 1, 16, 4, 18, 6, 21, 9, 11, 13), .Dim = c(9L, 
2L)), symobj = structure(list(Mver = structure(c(7, 8, 21, 20, 
6, 9, 5, 10, 18, 19, 15, 14, 1, 2, 16, 13, 17, 12, 4, 3), .Dim = c(10L, 
2L)), xver = c(11, 22), Mhor = NULL, 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, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, 
    FALSE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, 
    FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, TRUE, 
    TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, 
    FALSE, TRUE, TRUE, 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", "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"))), .Names = c("Mver", 
"xver", "Mhor", "xhor", "Mrot", "exact_h", "exact_v", "mcdonalds", 
"celtic", "reefknot", "center_crossing", "indep"))), .Names = c("minsymvec", 
"overunderobj", "symobj"), class = "knot")