def configure2012DataAlignment( fixQOverPBias = False ) :
TAlignment().WriteCondSubDetList += ['Velo','TT','IT','OT','MUON']

# define the alignment elements
elements = Alignables()
elements.Velo("None")
elements.VeloRight("None")
elements.VeloLeft("None")
elements.IT("None")
elements.ITBoxes("TxTzRz")
elements.ITLayers("None")
elements.OT("None")
elements.OTCFrames("TxRz")
elements.OTCFrameLayers("Tz")
elements.OTModules("TxRz")
elements.TT("None")
elements.TTLayers("Tz")
elements.TTModules("TxRz")
elements.Tracker("None")
TAlignment().ElementsToAlign = list(elements)

# make sure that the velo stays where it was
TAlignment().Constraints = constraints = []
constraints.append("VeloHalfAverage : Velo/Velo(Left|Right) : Tx ")
# fix the q/p scale by not moving T in X. note that you do not
# want to do this if you use D0 in the alignment
if fixQOverPBias:
constraints.append("OT3X : OT/T3X1U.Side : Tx")
# tweak the survey a little bit to fix the z-scale to survey
surveyconstraints = SurveyConstraints ()
surveyconstraints.All()
# make sure we fix the z-scale
surveyconstraints.XmlUncertainties += [
"OT/T1X1U : 0.00001 0.5 0.00001 0.0001 0.0001 0.0001",
"OT/T3X1U : 0.00001 0.5 0.00001 0.0001 0.0001 0.0001" ];
surveyconstraints.XmlUncertainties += ["OT/T3X1U.Side : 0.00001 0.5 0.5 0.0001 0.0001 0.0001" ]