[Brahms-dev-l] BB vertex

Hello deviants,

Back to brat coding, feels like being a PhD student ;D

I introduced a new BB vertex. So far, there were 3:
1 -> small tubes
2 -> big tubes
3 -> fastest tubes

Flemming introduced a small hack in order to use ALL tubes and stored the 
resulting vertex into the SMALL tube vertex object.
I cleaned that up. I simply added a fourth vertex. It was very 
straightforward considering how clean the bb vertex code is written, hehe:)

Now, the "best" bb vertex is the 4th one (all tubes), then small tubes, 
etc...

The files affected are:

M data/calib/BrVertexCalibration.h
M modules/calib/vertex/BrBbVertexCalModule.cxx
M modules/calib/vertex/BrBbVertexCalModule.h
M modules/vertex/BrBbVertexModule.cxx
M modules/vertex/BrBbVertexModule.h

I haven't committed yet. I tested with the newest brat, and run 9930.
Obviously, some time calibrations need to be done...but it's not that bad
with the available cal (best sigma ~ 1cm, but dists are not gaussian). I
will put my hands into it and provide some cool user friendly scripts,
since we have new master students eargerly awaiting calibration tasks :)

Tell me if you like the idea of this new vertex.

Ciao
Djam 

-- 
Djamel Ouerdane ------------------------------------------o
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