def get_skeleton_3d_figure(skeleton_3d: np.ndarray):
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')
    draw_grid_3d(ax)
    draw_origin_3d(ax)
    add_skeleton_3d_to_axes(ax, skeleton_3d)
    return (fig, ax)
def get_skeleton_3d_figure(skeleton_3d: np.ndarray):
    fig = plt.figure()
    ax = fig.add_subplot(111, projection='3d')
    draw_grid_3d(ax)
    draw_origin_3d(ax)
    add_skeleton_3d_to_axes(ax, skeleton_3d)
    return (fig, ax)