problem in velo_points_2_pano funciton

[AIGC-newbee]

I found something illogical in function velo_points_2_pano of Convert_Velo_2_Pano_detail.ipynb;

def velo_points_2_pano(points, v_res, h_res, v_fov, h_fov, depth=False):
    # Projecting to 2D
    x = points[:, 0]
    y = points[:, 1]
    z = points[:, 2]
    dist = np.sqrt(x ** 2 + y ** 2 + z ** 2)

    # project point cloud to 2D point map
    y_img = -(np.arctan2(z, dist) / (v_res * (np.pi / 180)))

Should dist = np.sqrt(x ** 2 + y ** 2) rather than dist = np.sqrt(x ** 2 + y ** 2 + z ** 2)? I discussed with ChatGPT4,0 who also agrees with me.