The rotor frame order parameters {P_alpha, P_beta, P_gamma, T_x, T_y, T_z, E_theta, E_phi, p_x, p_y,
p_z}, where P_i are the Euler angles defining the average domain position, T_i are the translations
defining the average domain position, E_i are the Eigenframe angles defining the rotation axis, and
p_i are the pivot point coordinates, will be converted to {P_alpha, P_beta, P_gamma, T_x, T_y, T_z,
Ax_alpha, p_x, p_y, p_z}. Ax_alpha is the new parameter which defines the rotation axis together
with the pivot using the minimal parameter set {p_x, p_y, p_z, Ax_alpha}.