def rotate_curve_z(curve, angle, scale):
control_points = np.copy(curve.get_control_points())
control_points = control_points[:, 0], control_points[:,
1], control_points[:,
2]
rhos, phis, zs = to_cylindrical_np(control_points, mode='radians')
xs, ys, zs = from_cylindrical_np(rhos * scale,
phis + angle,
zs,
mode='radians')
control_points = np.stack((xs, ys, zs)).T
return curve.copy(control_points=control_points)
def out_coordinates(rho, phi, z):
return from_cylindrical_np(rho, phi, z, mode='radians')