rot_about_y

lsst.ts.mthexapod.rot_about_y(xyzpos, ang)

Rotate a 3-d position about the y axis.

Positive rotation is from from z to x (the usual right-hand rule).

Parameters:

xyzpos : numpy.ndarray

x, y, z position.

ang : float

Angle in radians.

Returns:

rotpos : numpy.ndarray

Rotated x,y,z position.