lorentz#

anri.fwd.lorentz(k_in, k_out, rot_axis)[source]#

Lorentz factor for rotation about rot_axis.

It is 1 / |rot_axis . (k_in x k_out)|, equal to 1 / ImageD11.refinegrains.lf() = 1 / (sin(2theta) |sin(eta)|) for a vertical rotation axis.