Regarding Code logic

[ragson]

Hiii
Iam trying to understand your face shape code could you explain what will be below landmarks represent.
Is they are jaw points on the face ?if they are jaw points could you tell me also this is they for left jaw or right jaw ? any help

Thank you

#we use arcustangens for angle calculation
ax,ay = landmarks[3,0],landmarks[3,1]
bx,by = landmarks[4,0],landmarks[4,1]
cx,cy = landmarks[5,0],landmarks[5,1]
dx,dy = landmarks[6,0],landmarks[6,1]