...
- x : tank.origin0 - tank.dim0 - zc
- y : tank.origin1 + tank.dim1 + zc
- z : tank.origin2 + tank.dim2
box1 -
box1 <-- boxA(tankorigin,p1)
tankorigin : tankorigin
p1=
- x : tank.origin0 - tank.dim0
- y : tank.origin1 + tank.dim1
- z : tank.origin2 + tank.dim2
box2 -
subtract -