cluster_helix(N = 5, R0 = 12, pitch = 15, delta = pi/2, delta0 = 0, right = TRUE, a = 5, b = a, c = a, angles = c("helix", "random", "fixed"), seed = 123, ...)cluster_chain,
cluster_dimer,
cluster_dimer_end,
equal_angles, equal_sizes,
helix