TrkVKalVrtFitterConfig.py

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# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
# Configuration of TrkVKalVrtFitter package
 
from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
from AthenaConfiguration.ComponentFactory import CompFactory
 
def TrkVKalVrtFitterCfg(flags, name="TrkVKalVrtFitter", **kwargs):
    from MagFieldServices.MagFieldServicesConfig import (
        AtlasFieldCacheCondAlgCfg)
    acc = AtlasFieldCacheCondAlgCfg(flags) # To produce AtlasFieldCacheCondObj
 
    if "Extrapolator" not in kwargs:
        from TrkConfig.AtlasExtrapolatorConfig import AtlasExtrapolatorCfg
        kwargs.setdefault("Extrapolator", acc.popToolsAndMerge(
            AtlasExtrapolatorCfg(flags)))
 
    acc.setPrivateTools(CompFactory.Trk.TrkVKalVrtFitter(name, **kwargs))
    return acc
 
def Conversion_TrkVKalVrtFitterCfg(
        flags, name="Conversion_TrkVKalVrtFitter", **kwargs):
 
    kwargs.setdefault("FirstMeasuredPoint", True)
    kwargs.setdefault("FirstMeasuredPointLimit", True)
    kwargs.setdefault("InputParticleMasses", [0.511, 0.511])
    kwargs.setdefault("IterationNumber", 30)
    kwargs.setdefault("MakeExtendedVertex", True)
    kwargs.setdefault("Robustness", 6)
    kwargs.setdefault("usePhiCnst", True)
    kwargs.setdefault("useThetaCnst", True)
    kwargs.setdefault("CovVrtForConstraint",
                      [0.015*0.015, 0., 0.015*0.015, 0., 0., 10000.*10000.])
    kwargs.setdefault("VertexForConstraint", [0., 0., 0.])
 
    return TrkVKalVrtFitterCfg(flags, name, **kwargs)
 
def InDetTrkVKalVrtFitterCfg(flags, name="InDetTrkVKalVrtFitter", **kwargs):
    acc = ComponentAccumulator()
 
    if "Extrapolator" not in kwargs:
        from TrkConfig.AtlasExtrapolatorConfig import InDetExtrapolatorCfg
        kwargs.setdefault("Extrapolator", acc.popToolsAndMerge(
            InDetExtrapolatorCfg(flags)))
    
    acc.setPrivateTools(acc.popToolsAndMerge(
        TrkVKalVrtFitterCfg(flags, name, **kwargs)))
    return acc
 
def TrigVKalVrtFitterCfg(flags, name="TrigVKalVrtFitter", **kwargs):
    kwargs.setdefault("IterationNumber",    30)
    return InDetTrkVKalVrtFitterCfg(flags, name, **kwargs)
 
def BPHY_TrkVKalVrtFitterCfg(flags, name="BPHY_TrkVKalVrtFitter", **kwargs):
    kwargs.setdefault("MakeExtendedVertex", True)
    return InDetTrkVKalVrtFitterCfg(flags, name, **kwargs)
 
def V0VKalVrtFitterCfg(flags, name="V0VKalVrtFitter", **kwargs):
    kwargs.setdefault("IterationNumber",    30)
    return BPHY_TrkVKalVrtFitterCfg(flags, name, **kwargs)
 
def JpsiV0VertexFitCfg(flags, name="JpsiV0VertexFit", **kwargs):
    kwargs.setdefault("CascadeCnstPrecision", 1e-6)
    return BPHY_TrkVKalVrtFitterCfg(flags, name, **kwargs)
 
def BTAG_TrkVKalVrtFitterCfg(flags, name="BTAG_TrkVKalVrtFitter", **kwargs):
    from MagFieldServices.MagFieldServicesConfig import (
        AtlasFieldCacheCondAlgCfg)
    acc = AtlasFieldCacheCondAlgCfg(flags) # To produce AtlasFieldCacheCondObj
    kwargs.setdefault("FirstMeasuredPoint", False)
    kwargs.setdefault("FrozenVersionForBTagging", True)
    # No extrapolator explicitly configured, default constructor used
    acc.setPrivateTools(CompFactory.Trk.TrkVKalVrtFitter(name, **kwargs))
    return acc
 
def TrkVKalVrtFitterTestAlgCfg(flags, name="TrkVKalVrtFitterTestAlg", **kwargs):
    acc = ComponentAccumulator()
    kwargs.setdefault("Tool", acc.popToolsAndMerge(TrkVKalVrtFitterCfg(flags)))
    acc.addEventAlgo(CompFactory.Trk.TrkVKalVrtFitterTestAlg(name, **kwargs))
    return acc
 
 
if __name__ == "__main__":
 
    from AthenaConfiguration.AllConfigFlags import initConfigFlags
    flags = initConfigFlags()
 
    from AthenaConfiguration.TestDefaults import defaultTestFiles
    flags.Input.Files = defaultTestFiles.RDO_RUN2
 
    flags.fillFromArgs()
    flags.lock()
    flags.dump()
 
    from AthenaConfiguration.MainServicesConfig import MainServicesCfg
    from AthenaPoolCnvSvc.PoolReadConfig import PoolReadCfg
    cfg=MainServicesCfg(flags)
    cfg.merge(PoolReadCfg(flags))
 
    cfg.merge(TrkVKalVrtFitterTestAlgCfg(flags))
    cfg.run(2)