rigidbody_util
==============

Short description


RBs
---
.. autoclass:: pyrid.molecules.rigidbody_util.RBs
   :members: add_RB, next_um_reaction, set_triangle, add_particle, update_topology, place_particles, set_pos, update_force_torque, update_B, calc_orientation_quat, set_orientation_quat, update_orientation_quat, update_dq, update_dX, update_particle_pos, update_particle_pos_2D, rescale_pos
   :special-members: __init__