Tracking/Acts/ActsConfig/python/ActsPriVxFinderConfig.py

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# Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
 
from AthenaConfiguration.ComponentAccumulator import ComponentAccumulator
from AthenaConfiguration.ComponentFactory import CompFactory
from AthenaConfiguration.Enums import LHCPeriod
 
def ActsGaussAdaptiveMultiFindingCfg(flags,
                                     name="ActsAdaptiveMultiPriVtxFinderTool",
                                     **kwargs) -> ComponentAccumulator:
    from BeamSpotConditions.BeamSpotConditionsConfig import BeamSpotCondAlgCfg
    acc = BeamSpotCondAlgCfg(flags)
 
    if "TrackSelector" not in kwargs:
        from InDetTrackSelectionTool.InDetTrackSelectionToolConfig import (
            VtxInDetTrackSelectionCfg)
        kwargs.setdefault("TrackSelector", acc.popToolsAndMerge(
            VtxInDetTrackSelectionCfg(flags)))
 
    from ActsAlignmentAlgs.AlignmentAlgsConfig import ActsGeometryContextAlgCfg
    from ActsConfig.ActsGeometryConfig import ActsTrackingGeometrySvcCfg
    acc.merge(ActsGeometryContextAlgCfg(flags))
    acc.merge(ActsTrackingGeometrySvcCfg(flags))
    kwargs.setdefault("useBeamConstraint",
                      flags.Tracking.PriVertex.useBeamConstraint)
    kwargs.setdefault("tracksMaxZinterval",
                      flags.Tracking.PriVertex.maxZinterval)
    kwargs.setdefault("doFullSplitting",
                      not flags.Tracking.PriVertex.useBeamConstraint)
 
    if flags.GeoModel.Run >= LHCPeriod.Run4:
        kwargs.setdefault("minWeight", 0.02)
        kwargs.setdefault("maxIterations", 200)
 
    acc.setPrivateTools(
        CompFactory.ActsTrk.AdaptiveMultiPriVtxFinderTool(name, **kwargs))
    return acc
 
def TrigActsGaussAdaptiveMultiFindingCfg(flags,
                                         name="ActsAdaptiveMultiPriVtxFinderTool",
                                         **kwargs) -> ComponentAccumulator:
    acc = ComponentAccumulator()
 
    if "TrackSelector" not in kwargs:
        from InDetTrackSelectionTool.InDetTrackSelectionToolConfig import (
            TrigVtxInDetTrackSelectionCfg)
        kwargs.setdefault("TrackSelector", acc.popToolsAndMerge(
            TrigVtxInDetTrackSelectionCfg(flags)))
 
    kwargs.setdefault("useBeamConstraint", True)
    kwargs.setdefault("useSeedConstraint", False)
    kwargs.setdefault("tracksMaxZinterval", flags.Tracking.ActiveConfig.TracksMaxZinterval)
    kwargs.setdefault("doFullSplitting", False)
    kwargs.setdefault("addSingleTrackVertices", flags.Tracking.ActiveConfig.addSingleTrackVertices)
 
    acc.setPrivateTools(acc.popToolsAndMerge(
        ActsGaussAdaptiveMultiFindingCfg(flags, name+flags.Tracking.ActiveConfig.input_name, **kwargs)))
    return acc
 
def ActsIterativeFindingCfg(flags,
                            name="ActsIterativePriVtxFinderTool",
                            **kwargs) -> ComponentAccumulator:
    from BeamSpotConditions.BeamSpotConditionsConfig import BeamSpotCondAlgCfg
    acc = BeamSpotCondAlgCfg(flags)
 
    if "TrackSelector" not in kwargs:
        from InDetTrackSelectionTool.InDetTrackSelectionToolConfig import (
            VtxInDetTrackSelectionCfg)
        kwargs.setdefault("TrackSelector", acc.popToolsAndMerge(
            VtxInDetTrackSelectionCfg(flags)))
 
    from ActsAlignmentAlgs.AlignmentAlgsConfig import ActsGeometryContextAlgCfg
    from ActsConfig.ActsGeometryConfig import ActsTrackingGeometrySvcCfg
    acc.merge(ActsGeometryContextAlgCfg(flags))
    acc.merge(ActsTrackingGeometrySvcCfg(flags))
    kwargs.setdefault("useBeamConstraint",
                      flags.Tracking.PriVertex.useBeamConstraint)
    kwargs.setdefault("significanceCutSeeding", 12)
    kwargs.setdefault("maximumChi2cutForSeeding", 49)
    kwargs.setdefault("maxVertices", flags.Tracking.PriVertex.maxVertices)
    kwargs.setdefault("doMaxTracksCut", flags.Tracking.PriVertex.doMaxTracksCut)
    kwargs.setdefault("maxTracks", flags.Tracking.PriVertex.maxTracks)
 
    acc.setPrivateTools(CompFactory.ActsTrk.IterativePriVtxFinderTool(name, **kwargs))
    return acc
 
 
def ActsGridAdaptiveMultiFindingCfg(flags,
                                    name="ActsAdaptiveMultiPriVtxFinderTool",
                                    **kwargs) -> ComponentAccumulator:
    kwargs.setdefault("seederType", "Grid")
    kwargs.setdefault("GridMainGridSize", flags.Tracking.PriVertex.gridMainGridSize)
    kwargs.setdefault("GridTrkGridSize", flags.Tracking.PriVertex.gridTrkGridSize)
    kwargs.setdefault("GridUseHighestSumZPosition", flags.Tracking.PriVertex.gridUseHighestSumZPosition)
    kwargs.setdefault("gridMaxD0Significance", flags.Tracking.PriVertex.gridMaxD0Significance)
    kwargs.setdefault("gridMaxZ0Significance", flags.Tracking.PriVertex.gridMaxZ0Significance)
 
    return ActsGaussAdaptiveMultiFindingCfg(flags, name, **kwargs)