Question about ordering corner coordinates

[palver7]

Hi, I am preparing my own custom dataset of 360 panorama images. I read in issue #20 that I have to order the corner coordinates based on the 3d skeleton of the room layout. Can you elaborate more on this ? So I first generate the 3D layout of the room using layout viewer from the panorama image. Then, what is the correct viewing angle to see the order of the layout or corners ?