How to draw LOS with Warmachines (picture inside).

So this is the question:
How a Reaper Bolt Thrower is supposed to draw LOS to an enemy unit?

01
The RBT completed the free pivot move and draws LOS with a straight line drawn between the center of the model and the "firing point".
The result is NO LOS

02
The RBT completed the free pivot move and draws LOS with a straight line line drawn between the "firing point" and the target.
THe model has LOS to the target.

So...
What's the right way to draw LOS? 01 or 02?

Thx!