knotR: Knot Diagrams using Bezier Curves

`k3_1a` <-
  structure(list(minsymvec = structure(c(-107.505797, -35.442097, 
-572.767209, -427.031769, -49.018863, -163.977612, -903.937438, 
-642.197552, -21.075247, -436.823364, -73.936675, -236.912526, 
-570.164189, -222.872648, -72.88603, -313.018033, -874.941293, 
-432.432627, -1.404382, -587.529111), .Names = c("handle_A1", 
"handle_A3", "handle_A4", "handle_A5", "handle_A7", "handle_A11", 
"handle_A13", "handle_A14", "handle_A15", "handle_A17", "node1", 
"node3", "node4", "node5", "node7", "node11", "node13", "node14", 
"node15", "node17"), class = "minsymvec"), overunderobj = structure(c(1, 
7, 3, 6, 2, 8), .Dim = c(3L, 2L)), symobj = structure(list(Mver = structure(c(5, 
4, 1, 7, 3, 10, 9, 6, 2, 8), .Dim = c(5L, 2L)), xver = NULL, 
    Mhor = NULL, xhor = NULL, Mrot = NULL, mcdonalds = TRUE, 
    celtic = FALSE, indep = structure(c(TRUE, FALSE, TRUE, TRUE, 
    TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, TRUE, FALSE, TRUE, 
    TRUE, TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, TRUE, FALSE, 
    TRUE, TRUE, TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, TRUE, 
    FALSE, TRUE, TRUE, TRUE, FALSE, TRUE, 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", "node1", "node2", "node3", "node4", "node5", 
    "node6", "node7", "node8", "node9", "node10", "node11", "node12", 
    "node13", "node14", "node15", "node16", "node17", "node18", 
    "node19", "node20"))), .Names = c("Mver", "xver", "Mhor", 
"xhor", "Mrot", "mcdonalds", "celtic", "indep"))), .Names = c("minsymvec", 
"overunderobj", "symobj"), class = "knot")