DivergentBeamGeometry.rotation_matrix

DivergentBeamGeometry.rotation_matrix(mparam)

Return the rotation matrix to the system state at mparam.

Parameters:

mparamarray-like or sequence

Motion parameter(s) at which to evaluate. If motion_params.ndim >= 2, a sequence of that length must be provided.

Returns:

rotnumpy.ndarray

The rotation matrix (or matrices) mapping vectors at the initial state to the ones in the state defined by mparam. The rotation is extrinsic, i.e., defined in the "world" coordinate system.