knotR: Knot Diagrams using Bezier Curves

`k9_12` <-
structure(list(minsymvec = structure(c(39.7092655900777, 153.82000342868, 
298.035915659159, -28.8263810781138, -28.5432955270874, -44.2717324647148, 
33.0202254559236, 187.544896156894, 375.674975276937, 246.833405171217, 
5.4799769620216, -162.789907719947, -313.78561833737, -198.471397160945, 
-22.3138441464202, -20.7669367494432, -41.5558352113524, -266.357310484218, 
-314.022995634668, -230.371255069242, -100.671777794404, -8.49628856523978, 
-70.669651883129, -124.889987899909, -402.772076458031, -866.425218635537, 
-548.279868125514, -353.984148607849, -232.049207464489, -87.8522946261378, 
-184.108844918747, -355.113745665977, -229.901516165266, -107.267457230289, 
-200.053301463294, -341.484099573226, -411.186217753846, -565.231785185282, 
-924.619301020584, -779.179515072937, -619.021458634397, -313.441499928355, 
-103.971004227423, 74.9580045266786, 212.294019945661, 305.531961222555, 
-26.5401224831356, -53.6471287633654, -22.9554718548973, 81.1147411746059, 
261.282908547942, 351.829860930054, 158.033899321514, -53.4574406719171, 
-222.238071756321, -288.320380667879, -135.344987439737, -6.38061975517618, 
-18.8593768204566, -133.360385500108, -279.971107781818, -291.604178156126, 
-181.568269807843, -68.6106885623099, -84.2762934156086, -214.140457675322, 
-515.314757930878, -793.277252248088, -481.235495331374, -317.149398839589, 
-185.087227602228, -100.596554555309, -250.117860572942, -324.426845197708, 
-185.501010340944, -122.764140363512, -259.115287474352, -367.033728286343, 
-472.865028490537, -632.959782463289, -898.726309328251, -740.30304009098, 
-497.796312151184, -223.171014852486, -87.4342401766789, -70.3833463479941
), .Names = c("handle_A1", "handle_A2", "handle_A3", "handle_A6", 
"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_A21", "handle_A22", "handle_A23", 
"handle_A24", "handle_A25", "handle_A26", "handle_A27", "handle_A28", 
"handle_A29", "handle_A32", "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_A47", 
"handle_A48", "handle_A49", "handle_A50", "handle_A51", "node1", 
"node2", "node3", "node6", "node8", "node9", "node10", "node11", 
"node12", "node13", "node14", "node15", "node16", "node17", "node18", 
"node19", "node21", "node22", "node23", "node24", "node25", "node27", 
"node28", "node29", "node32", "node34", "node35", "node36", "node37", 
"node38", "node39", "node40", "node41", "node42", "node43", "node44", 
"node45", "node47", "node48", "node49", "node50", "node51", "node52"
), class = "minsymvec"), overunderobj = structure(c(11, 3, 21, 
7, 19, 9, 14, 25, 17, 2, 13, 6, 20, 8, 18, 10, 15, 24), .Dim = c(9L, 
2L)), symobj = structure(list(Mver = structure(c(19, 6, 21, 22, 
7, 20, 5, 4), .Dim = c(4L, 2L)), xver = 26, Mhor = NULL, xhor = NULL, 
    Mrot = NULL, exact_h = NULL, exact_v = NULL, mcdonalds = FALSE, 
    celtic = FALSE, reefknot = FALSE, center_crossing = FALSE, 
    indep = structure(c(TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, 
    FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, FALSE, FALSE, TRUE, FALSE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, TRUE, TRUE, 
    FALSE, FALSE, TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, FALSE, TRUE, TRUE, TRUE, FALSE, FALSE, 
    TRUE, FALSE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, TRUE, 
    TRUE, TRUE, TRUE, TRUE, FALSE, TRUE, 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", "handle_A45", "handle_A46", "handle_A47", "handle_A48", 
    "handle_A49", "handle_A50", "handle_A51", "handle_A52", "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"))), .Names = c("Mver", "xver", "Mhor", 
"xhor", "Mrot", "exact_h", "exact_v", "mcdonalds", "celtic", 
"reefknot", "center_crossing", "indep"))), .Names = c("minsymvec", 
"overunderobj", "symobj"), class = "knot")