Comment from student: it’s hard to explain it without a picture.
My response to this message is in 3 positions:
1. Then make your own picture.
It is so elementary, that there is NOTHING to discuss here . . . .
2. Do not take such a STUPID position.
3. If you can not make a picture on your own, it means that EITHER you are in wrong class
OR occupy wrong position in this project.
Please do not post your problem again and do not demonstrate such an unrestricted stupidity.