Python XYZ.as_list Examples

Example #1

File: MyPDB_funcs.py Project: jonathaw/general_scripts

def rotation_matrix_around_vec( axis: mp.XYZ, theta: float ):
    """
    calcualted the rotation matrix to roatate an boject around axis theta radian degrees
    based on:
    http://www.euclideanspace.com/maths/algebra/vectors/angleBetween/
    and
    http://stackoverflow.com/questions/6802577/python-rotation-of-3d-vector
    """
    return linalg.expm3(np.cross(np.eye(3), axis.as_list()/np.float64(linalg.norm(axis.as_list()))*theta))

Example #2

File: MyPDB_funcs.py Project: jonathaw/general_scripts

def rotation_matrix_around_vec(axis: mp.XYZ, theta: float):
    """
    calcualted the rotation matrix to roatate an boject around axis theta radian degrees
    based on:
    http://www.euclideanspace.com/maths/algebra/vectors/angleBetween/
    and
    http://stackoverflow.com/questions/6802577/python-rotation-of-3d-vector
    """
    return linalg.expm3(
        np.cross(
            np.eye(3),
            axis.as_list() / np.float64(linalg.norm(axis.as_list())) * theta))