knotR: Knot Diagrams using Bezier Curves

`k3_1` <-	
structure(list(minsymvec = structure(c(-202.290279555869, -11.3601216275497, 
54.8085682558242, -327.513415574284, -25.5618949461944, 170.277906059839, 
183.541982381179, 257.06072405663, -128.534671269654, 128.323903249392, 
-248.045515795318, 176.909835662609, 183.536200908681, 176.956479759967, 
408.386204753803, 562.489019708894), .Names = c("handle_A3", 
"handle_A4", "handle_A5", "handle_A12", "handle_A13", "handle_A21", 
"handle_A23", "handle_A30", "node3", "node5", "node12", "node21", 
"node22", "node23", "node30", "node31"), class = "minsymvec"), 
    overunderobj = structure(c(15, 9, 3, 6, 18, 12), .Dim = c(3L, 
    2L)), symobj = structure(list(Mver = structure(c(12, 2, 1, 
    18, 11, 10, 9, 14, 6, 7, 8, 15, 16, 17), .Dim = c(7L, 2L)), 
        xver = c(4, 13), Mhor = NULL, xhor = NULL, Mrot = structure(c(12, 
        13, 14, 3, 4, 5, 6, 7, 8, 15, 16, 17, 18, 1, 2, 9, 10, 
        11), .Dim = c(6L, 3L)), exact_h = NULL, exact_v = NULL, 
        mcdonalds = FALSE, celtic = FALSE, reefknot = FALSE, 
        center_crossing = FALSE, indep = structure(c(FALSE, FALSE, 
        TRUE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, TRUE, TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, TRUE, FALSE, TRUE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, TRUE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, FALSE, FALSE, 
        FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, TRUE, 
        TRUE, FALSE, FALSE, FALSE, FALSE, FALSE, FALSE, TRUE, 
        TRUE, 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", "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"))), .Names = c("Mver", "xver", 
    "Mhor", "xhor", "Mrot", "exact_h", "exact_v", "mcdonalds", 
    "celtic", "reefknot", "center_crossing", "indep"))), .Names = c("minsymvec", 
"overunderobj", "symobj"), class = "knot")