ActsGeometryConfig Namespace Reference

Functions
ComponentAccumulator	ActsTrackingGeometrySvcCfg (flags, str name="ActsTrackingGeometrySvc", **kwargs)
ComponentAccumulator	ITkMaterialDecoratorToolCfg (flags, name="ITkMaterialDecorator", **kwargs)
	MuonMaterialDecoratorToolCfg (flags, name="MuonMaterialDecoratorTool", **kwargs)
ComponentAccumulator	ActsExtrapolationToolCfg (flags, str name="ActsExtrapolationTool", **kwargs)
ComponentAccumulator	ActsGeometryRealmConvToolCfg (flags, str name="ActsGeometryRealmConvTool", **kwargs)
ComponentAccumulator	ActsObjWriterToolCfg (flags, str name="ActsObjWriterTool", **kwargs)
ComponentAccumulator	ActsExtrapolationAlgCfg (flags, str name="ActsExtrapolationAlg", **kwargs)
ComponentAccumulator	ActsWriteTrackingGeometryCfg (flags, str name="ActsWriteTrackingGeometry", **kwargs)
ComponentAccumulator	ActsWriteTrackingGeometryTransformsAlgCfg (flags, str name="ActsWriteTrackingGeometryTransformsAlg", **dict kwargs)
ComponentAccumulator	ActsVolumeIdToDetectorCollectionMappingAlgCfg (flags, str name="ActsVolumeIdToDetectorCollectionMappingAlgCfg", **kwargs)
ComponentAccumulator	ActsInDetVolumeIdToDetectorCollectionMappingAlgCfg (flags, str name="ActsInDetVolumeIdToDetectorCollectionMappingAlgCfg", **kwargs)
ComponentAccumulator	BeamPipeBlueprintNodeBuilderCfg (flags, str name="BeamPipeBlueprintNodeBuilder", **kwargs)
ComponentAccumulator	ItkBlueprintNodeBuilderCfg (flags, str name="ItkBlueprintNodeBuilder", **kwargs)
ComponentAccumulator	HgtdBlueprintNodeBuilderCfg (flags, str name="HgtdBlueprintNodeBuilder", **kwargs)
ComponentAccumulator	caloBlueprintNodeBuilderCfg (flags, str name="CaloBlueprintNodeBuilder", **kwargs)
	MuonBlueprintNodeBuilderCfg (flags, name="MuonBlueprintNodeBuilder", **kwargs)

Function Documentation

ActsExtrapolationAlgCfg()

ComponentAccumulator ActsExtrapolationAlgCfg	(		flags,
		str	name = "ActsExtrapolationAlg",
		**	kwargs )

Definition at line 226 of file ActsGeometryConfig.py.

                            **kwargs) -> ComponentAccumulator:
  acc = ComponentAccumulator()
 
  if "ExtrapolationTool" not in kwargs:
    kwargs.setdefault("ExtrapolationTool", acc.popToolsAndMerge(ActsExtrapolationToolCfg(flags))) # PrivateToolHandle
  from MuonConfig.MuonConfigUtils import setupHistSvcCfg
  acc.merge(setupHistSvcCfg(flags, outFile="propsteps.root", outStream = "ActsExtrapolationRecord"))
  acc.addEventAlgo(CompFactory.ActsTrk.ExtrapolationTestAlg(name, **kwargs))
  return acc
 

ActsExtrapolationToolCfg()

ComponentAccumulator ActsExtrapolationToolCfg	(		flags,
		str	name = "ActsExtrapolationTool",
		**	kwargs )

Definition at line 196 of file ActsGeometryConfig.py.

                             **kwargs) -> ComponentAccumulator:
  acc = ComponentAccumulator()
  from MagFieldServices.MagFieldServicesConfig import AtlasFieldCacheCondAlgCfg
  acc.merge(AtlasFieldCacheCondAlgCfg(flags))
  from ActsAlignmentAlgs.AlignmentAlgsConfig import ActsGeometryContextAlgCfg
  acc.merge(ActsGeometryContextAlgCfg(flags))
  acc.merge(ActsTrackingGeometrySvcCfg(flags))
  acc.setPrivateTools(CompFactory.ActsTrk.ExtrapolationTool(name, **kwargs))
  return acc
 
 

ActsGeometryRealmConvToolCfg()

ComponentAccumulator ActsGeometryRealmConvToolCfg	(		flags,
		str	name = "ActsGeometryRealmConvTool",
		**	kwargs )

Definition at line 209 of file ActsGeometryConfig.py.

def ActsGeometryRealmConvToolCfg(flags, name: str = "ActsGeometryRealmConvTool", **kwargs) -> ComponentAccumulator:
    acc = ComponentAccumulator()
    from ActsAlignmentAlgs.AlignmentAlgsConfig import ActsGeometryContextAlgCfg
    acc.merge(ActsGeometryContextAlgCfg(flags))
    acc.merge(ActsTrackingGeometrySvcCfg(flags)) 
    kwargs.setdefault("ExtractMuonSurfaces", flags.Muon.usePhaseIIGeoSetup)
    acc.addPublicTool(CompFactory.ActsTrk.GeometryRealmConvTool(name, **kwargs), primary = True)
    return acc
 

ActsInDetVolumeIdToDetectorCollectionMappingAlgCfg()

ComponentAccumulator ActsInDetVolumeIdToDetectorCollectionMappingAlgCfg	(		flags,
		str	name = "ActsInDetVolumeIdToDetectorCollectionMappingAlgCfg",
		**	kwargs )

Definition at line 278 of file ActsGeometryConfig.py.

                           **kwargs) -> ComponentAccumulator:
    # Inner Detector version of ActsVolumeIdToDetectorCollectionMappingAlgCfg
    acc = ComponentAccumulator()
    kwargs.setdefault('ActsVolumeIdToDetectorElementCollectionMap', 'VolumeIdToDetectorElementCollectionMap')
 
    def filterCollections(flags, pixel_det_el, strip_det_el) :
      ret=[]
      if flags.Detector.GeometryPixel:
        ret += [ pixel_det_el ]
      if flags.Detector.GeometrySCT:
        ret += [ strip_det_el ]
      return ret
    kwargs.setdefault('DetectorElementsKeys', filterCollections( flags,
                                                                 'PixelDetectorElementCollection',
                                                                 'SCT_DetectorElementCollection'))
 
    acc.addCondAlgo(CompFactory.ActsTrk.ActsVolumeIdToDetectorElementCollectionMappingAlg(name, **kwargs))
    return acc
 

ActsObjWriterToolCfg()

ComponentAccumulator ActsObjWriterToolCfg	(		flags,
		str	name = "ActsObjWriterTool",
		**	kwargs )

Definition at line 218 of file ActsGeometryConfig.py.

                         **kwargs) -> ComponentAccumulator:
  acc = ComponentAccumulator()
  acc.addPublicTool(CompFactory.ActsObjWriterTool(name, **kwargs), primary=True)
  return acc
 
 

ActsTrackingGeometrySvcCfg()

ComponentAccumulator ActsTrackingGeometrySvcCfg	(		flags,
		str	name = "ActsTrackingGeometrySvc",
		**	kwargs )

Definition at line 6 of file ActsGeometryConfig.py.

                               **kwargs) -> ComponentAccumulator:
  acc = ComponentAccumulator()
 
  from ROOT.ActsTrk import DetectorType
  kwargs.setdefault("NotAlignDetectors", [DetectorType.Trt,
                                          DetectorType.Hgtd])
  kwargs.setdefault("UseBlueprint", flags.Acts.TrackingGeometry.UseBlueprint)
  kwargs.setdefault("BuildDetrayGeometry", flags.Acts.TrackingGeometry.BuildDetrayGeometry)
  kwargs.setdefault("ObjDebugOutput", flags.Acts.TrackingGeometry.ObjDebugOutput)
  kwargs.setdefault("KeepGoingOnMaterialMergeFailure", flags.Acts.TrackingGeometry.KeepGoingOnMaterialMergeFailure)
 
  subDetectors = []
  blueprintTools = []
  refineTools = []
 
  # This is a (hopefully) temporary workaround to the issue described in
  # ATEAM-1134. Once Athena moves to using ROOT 6.38+, this should no longer
  # be necessary.
  import ROOT
  from AthenaServices.ROOTMessageFilterSvcConfig import ROOTMessageFilterSvcCfg
  acc.merge(ROOTMessageFilterSvcCfg(flags,
                                    SuppressionRules=[('TCling::LoadPCM',
                                                       '.*libGeom_rdict.pcm.*',
                                                       ROOT.kError)]))
 
  if flags.Detector.GeometryBpipe:
    from BeamPipeGeoModel.BeamPipeGMConfig import BeamPipeGeometryCfg
    acc.merge(BeamPipeGeometryCfg(flags))
    kwargs.setdefault("BuildBeamPipe", True)
 
  if flags.Detector.GeometryPixel:
    subDetectors += ["Pixel"]
    from PixelGeoModel.PixelGeoModelConfig import PixelReadoutGeometryCfg
    acc.merge(PixelReadoutGeometryCfg(flags))
 
 
  if flags.Detector.GeometrySCT:
    subDetectors += ["SCT"]
    from SCT_GeoModel.SCT_GeoModelConfig import SCT_ReadoutGeometryCfg
    acc.merge(SCT_ReadoutGeometryCfg(flags))
 
  if flags.Detector.GeometryTRT:
    # Commented out because TRT is not production ready yet and we don't
    # want to turn it on even if the global flag is set
    #  subDetectors += ["TRT"]
    from TRT_GeoModel.TRT_GeoModelConfig import TRT_ReadoutGeometryCfg
    acc.merge(TRT_ReadoutGeometryCfg(flags))
 
  if flags.Detector.GeometryCalo:
    #No non-blueprint mode exists for calo, so all we do here is
    #to setup both the LAr and Tile geometry to enable access to the
    #CaloDetDescrManager geometry information. This is needed
    #for the Acts calo blueprint builder tool
    #Note that in blueprint mode the calo geometry is built
    #in initialize of the TrackingGeometrySvc and so we use
    #a static calo geometry. To avoid errors the flag Lar.doAlign
    #must be set to false (when flag values are set)
    from LArGeoAlgsNV.LArGMConfig import LArGMCfg
    acc.merge(LArGMCfg(flags))
    from TileGeoModel.TileGMConfig import TileGMCfg
    acc.merge(TileGMCfg(flags))
 
  #first add the itk builder and then the muon system - this is the correct order
  if flags.Acts.TrackingGeometry.UseBlueprint:
    if flags.Detector.GeometryBpipe or flags.Detector.GeometryITk:
      blueprintTools += [acc.popToolsAndMerge(BeamPipeBlueprintNodeBuilderCfg(flags))]
    if flags.Detector.GeometryITk:
      if flags.Acts.TrackingGeometry.ITkHgtdMaterialSource != "None":
        refineTools += [acc.popToolsAndMerge(ITkMaterialDecoratorToolCfg(flags))]
      blueprintTools += [acc.popToolsAndMerge(ItkBlueprintNodeBuilderCfg(flags))]
    if flags.Detector.GeometryHGTD:
      blueprintTools += [acc.popToolsAndMerge(HgtdBlueprintNodeBuilderCfg(flags))]
    if flags.Detector.GeometryCalo:
      subDetectors += ["Calo"]
      blueprintTools += [acc.popToolsAndMerge(caloBlueprintNodeBuilderCfg(flags))]
    # Muon system is currently disabled for simulation. Enabling it for non-simulation use cases. 
    if flags.Muon.usePhaseIIGeoSetup and 'ACTS' not in flags.Sim.ISF.Simulator.value:
      subDetectors += ["Muon"]
      from MuonConfig.MuonGeometryConfig import MuonGeoModelCfg
      acc.merge(MuonGeoModelCfg(flags))
      blueprintTools += [acc.popToolsAndMerge(MuonBlueprintNodeBuilderCfg(flags))]
      
      if flags.Acts.TrackingGeometry.MuonMaterialSource != "None" and \
         flags.Acts.TrackingGeometry.MuonPassiveMaterial:
         refineTools+= [acc.popToolsAndMerge(MuonMaterialDecoratorToolCfg(flags))]
        
 
  if flags.Detector.GeometryITkPixel:
    subDetectors += ["ITkPixel"]
    from PixelGeoModelXml.ITkPixelGeoModelConfig import ITkPixelReadoutGeometryCfg
    acc.merge(ITkPixelReadoutGeometryCfg(flags))
 
  if flags.Detector.GeometryITkStrip:
    subDetectors += ["ITkStrip"]
    from StripGeoModelXml.ITkStripGeoModelConfig import ITkStripReadoutGeometryCfg
    acc.merge(ITkStripReadoutGeometryCfg(flags))
 
 
  if flags.Detector.GeometryHGTD:
    subDetectors += ["HGTD"]
    if flags.HGTD.Geometry.useGeoModelXml:
        from HGTD_GeoModelXml.HGTD_GeoModelConfig import HGTD_ReadoutGeometryCfg
    else:
        from HGTD_GeoModel.HGTD_GeoModelConfig import HGTD_ReadoutGeometryCfg
    acc.merge(HGTD_ReadoutGeometryCfg(flags))
 
  if kwargs.get("BuildDetrayGeometry", False):
    # The Detray geometry is built once, at initialize, and stays on the host,
    # so a plain host memory resource is all it needs. A workflow that copies
    # the geometry to a device can override HostMR with the backend specific
    # tool from AthDeviceComps.AthDeviceCompsConfig.HostMemoryResourceToolCfg,
    # to get the detector allocated in pinned memory.
    kwargs.setdefault("HostMR",
                      CompFactory.AthDevice.HostMemoryResourceTool("ActsDetrayHostMR"))
 
  actsTrackingGeometrySvc = CompFactory.ActsTrk.TrackingGeometrySvc(name,
                                                                BuildSubDetectors=subDetectors,
                                                                BlueprintNodeBuilders=blueprintTools,
                                                                RefinementTools=refineTools,
                                                                **kwargs)
 
  if flags.Acts.TrackingGeometry.MaterialSource == "Default":
    if flags.Detector.GeometryITk:
      extension = "ITk"
      if flags.Detector.GeometryHGTD:
        extension += "-HGTD"
      if flags.Acts.TrackingGeometry.InsertITkPassiveMaterialLayers:
        extension += "-passiveLayers"
      if flags.Acts.TrackingGeometry.MaterialFileExtension:
        extension += "-"+flags.Acts.TrackingGeometry.MaterialFileExtension
      actsTrackingGeometrySvc.UseMaterialMap = True
      actsTrackingGeometrySvc.MaterialMapCalibFolder = flags.Acts.TrackingGeometry.MaterialCalibrationFolder
      actsTrackingGeometrySvc.MaterialMapInputFile = \
        "material-maps-" + flags.GeoModel.AtlasVersion + "-" + extension + ".json"
 
  elif flags.Acts.TrackingGeometry.MaterialSource.find(".json") != -1:
    actsTrackingGeometrySvc.UseMaterialMap = True
    actsTrackingGeometrySvc.MaterialMapCalibFolder = flags.Acts.TrackingGeometry.MaterialCalibrationFolder
    actsTrackingGeometrySvc.MaterialMapInputFile = flags.Acts.TrackingGeometry.MaterialSource
 
  if flags.Acts.TrackingGeometry.InsertITkPassiveMaterialLayers:
    actsTrackingGeometrySvc.PassiveITkInnerPixelBarrelLayerRadii = flags.Acts.TrackingGeometry.PassiveITkInnerPixelBarrelLayerRadii
    actsTrackingGeometrySvc.PassiveITkInnerPixelBarrelLayerHalflengthZ = flags.Acts.TrackingGeometry.PassiveITkInnerPixelBarrelLayerHalflengthZ
    actsTrackingGeometrySvc.PassiveITkInnerPixelBarrelLayerThickness = flags.Acts.TrackingGeometry.PassiveITkInnerPixelBarrelLayerThickness
    actsTrackingGeometrySvc.PassiveITkOuterPixelBarrelLayerRadii = flags.Acts.TrackingGeometry.PassiveITkOuterPixelBarrelLayerRadii
    actsTrackingGeometrySvc.PassiveITkOuterPixelBarrelLayerHalflengthZ = flags.Acts.TrackingGeometry.PassiveITkOuterPixelBarrelLayerHalflengthZ
    actsTrackingGeometrySvc.PassiveITkOuterPixelBarrelLayerThickness = flags.Acts.TrackingGeometry.PassiveITkOuterPixelBarrelLayerThickness
    actsTrackingGeometrySvc.PassiveITkStripBarrelLayerRadii = flags.Acts.TrackingGeometry.PassiveITkStripBarrelLayerRadii
    actsTrackingGeometrySvc.PassiveITkStripBarrelLayerHalflengthZ = flags.Acts.TrackingGeometry.PassiveITkStripBarrelLayerHalflengthZ
    actsTrackingGeometrySvc.PassiveITkStripBarrelLayerThickness = flags.Acts.TrackingGeometry.PassiveITkStripBarrelLayerThickness
 
 
 
  acc.addService(actsTrackingGeometrySvc, primary = True)
  return acc
 
 
 

ActsVolumeIdToDetectorCollectionMappingAlgCfg()

ComponentAccumulator ActsVolumeIdToDetectorCollectionMappingAlgCfg	(		flags,
		str	name = "ActsVolumeIdToDetectorCollectionMappingAlgCfg",
		**	kwargs )

Definition at line 258 of file ActsGeometryConfig.py.

                           **kwargs) -> ComponentAccumulator:
    acc = ComponentAccumulator()
    kwargs.setdefault('ActsVolumeIdToDetectorElementCollectionMap', 'VolumeIdToDetectorElementCollectionMap')
 
    def filterCollections(flags, pixel_det_el, strip_det_el) :
      ret=[]
      if flags.Detector.GeometryITkPixel:
        ret += [ pixel_det_el ]
      if flags.Detector.GeometryITkStrip:
        ret += [ strip_det_el ]
      return ret
    kwargs.setdefault('DetectorElementsKeys', filterCollections( flags,
                                                                 'ITkPixelDetectorElementCollection',
                                                                 'ITkStripDetectorElementCollection'))
 
    acc.addCondAlgo(CompFactory.ActsTrk.ActsVolumeIdToDetectorElementCollectionMappingAlg(name, **kwargs))
    return acc
 

ActsWriteTrackingGeometryCfg()

ComponentAccumulator ActsWriteTrackingGeometryCfg	(		flags,
		str	name = "ActsWriteTrackingGeometry",
		**	kwargs )

Definition at line 238 of file ActsGeometryConfig.py.

                                 **kwargs) -> ComponentAccumulator:
    acc = ComponentAccumulator()
    from MagFieldServices.MagFieldServicesConfig import AtlasFieldCacheCondAlgCfg
    acc.merge(AtlasFieldCacheCondAlgCfg(flags))
    from ActsAlignmentAlgs.AlignmentAlgsConfig import ActsGeometryContextAlgCfg
    acc.merge(ActsGeometryContextAlgCfg(flags))
    acc.merge(ActsTrackingGeometrySvcCfg(flags))
    acc.addEventAlgo(CompFactory.ActsTrk.WriteTrackingGeometry(name, **kwargs), primary = True)
    return acc
 

ActsWriteTrackingGeometryTransformsAlgCfg()

ComponentAccumulator ActsWriteTrackingGeometryTransformsAlgCfg	(		flags,
		str	name = "ActsWriteTrackingGeometryTransformsAlg",
		**dict	kwargs )

Definition at line 250 of file ActsGeometryConfig.py.

                                              **kwargs: dict) -> ComponentAccumulator:
    acc = ComponentAccumulator()
 
    acc.addEventAlgo(CompFactory.ActsWriteTrackingGeometryTransforms(name,**kwargs))
    return acc
 

BeamPipeBlueprintNodeBuilderCfg()

ComponentAccumulator BeamPipeBlueprintNodeBuilderCfg	(		flags,
		str	name = "BeamPipeBlueprintNodeBuilder",
		**	kwargs )

Definition at line 299 of file ActsGeometryConfig.py.

) -> ComponentAccumulator:
    result = ComponentAccumulator()
    kwargs.setdefault("loadFromDatabase", flags.Detector.GeometryBpipe)
    result.setPrivateTools(
        CompFactory.ActsTrk.BeamPipeBlueprintNodeBuilder(name, **kwargs)
    )
    return result
 
 

caloBlueprintNodeBuilderCfg()

ComponentAccumulator caloBlueprintNodeBuilderCfg	(		flags,
		str	name = "CaloBlueprintNodeBuilder",
		**	kwargs )

Definition at line 331 of file ActsGeometryConfig.py.

                                   **kwargs) -> ComponentAccumulator:
    result = ComponentAccumulator()
    the_tool = CompFactory.ActsTrk.CaloBlueprintNodeBuilder(name, **kwargs)
    result.setPrivateTools(the_tool)
    return result
 

HgtdBlueprintNodeBuilderCfg()

ComponentAccumulator HgtdBlueprintNodeBuilderCfg	(		flags,
		str	name = "HgtdBlueprintNodeBuilder",
		**	kwargs )

Definition at line 321 of file ActsGeometryConfig.py.

) -> ComponentAccumulator:
    result = ComponentAccumulator()
    the_tool = CompFactory.ActsTrk.HgtdBlueprintNodeBuilder(
        name, **kwargs)
    result.setPrivateTools(the_tool)
    return result
 
 

ItkBlueprintNodeBuilderCfg()

ComponentAccumulator ItkBlueprintNodeBuilderCfg	(		flags,
		str	name = "ItkBlueprintNodeBuilder",
		**	kwargs )

Definition at line 310 of file ActsGeometryConfig.py.

                                   **kwargs) -> ComponentAccumulator:
    result = ComponentAccumulator()
    kwargs.setdefault("buildPixel", flags.Detector.GeometryITkPixel)
    kwargs.setdefault("buildStrip", flags.Detector.GeometryITkStrip)
    the_tool = CompFactory.ActsTrk.ItkBlueprintNodeBuilder(name, **kwargs)
    result.setPrivateTools(the_tool)
    return result
 
 

ITkMaterialDecoratorToolCfg()

ComponentAccumulator ITkMaterialDecoratorToolCfg	(		flags,
			name = "ITkMaterialDecorator",
		**	kwargs )

Definition at line 167 of file ActsGeometryConfig.py.

def ITkMaterialDecoratorToolCfg(flags, name="ITkMaterialDecorator", **kwargs) -> ComponentAccumulator:
    result = ComponentAccumulator()
    filename = flags.Acts.TrackingGeometry.ITkHgtdMaterialSource
    folder = flags.Acts.TrackingGeometry.ITkHgtdMaterialMapPath
    if flags.Acts.TrackingGeometry.ITkHgtdMaterialSource == "Default":
        # ITkMaterialDecoratorTool picks its reader (Json or Root) from the file
        # extension, so this is what selects the default format read back in.
        filename = f"material-maps-itk-hgtd-{flags.GeoModel.AtlasVersion}.json"
    kwargs.setdefault("MaterialDbFile", filename)
    kwargs.setdefault("MaterialDbFolder", folder)
    the_tool = CompFactory.ActsTrk.ITkMaterialDecoratorTool(name, **kwargs)
    result.setPrivateTools(the_tool)
    return result
 

MuonBlueprintNodeBuilderCfg()

MuonBlueprintNodeBuilderCfg	(		flags,
			name = "MuonBlueprintNodeBuilder",
		**	kwargs )

Definition at line 339 of file ActsGeometryConfig.py.

def MuonBlueprintNodeBuilderCfg(flags, name = "MuonBlueprintNodeBuilder", **kwargs):
    result = ComponentAccumulator()
    from MuonGeoModelR4.MuonGeoModelConfig import MuonGeoModelCfg
    from AthenaConfiguration.Enums import LHCPeriod
    result.merge(MuonGeoModelCfg(flags))
    kwargs.setdefault("run4Layout", flags.GeoModel.Run >= LHCPeriod.Run4)
    kwargs.setdefault("AssignActiveMaterial", flags.Acts.TrackingGeometry.MuonActiveMaterial)
    kwargs.setdefault("BuildPassiveVolumes", flags.Acts.TrackingGeometry.MuonPassiveMaterial)
    kwargs.setdefault("AssignEmptyPassiveMaterial", flags.Acts.TrackingGeometry.MuonMaterialSource == 'None')
    kwargs.setdefault("UseFrustumNav",flags.Acts.TrackingGeometry.FrustumNav)
    the_tool = CompFactory.ActsTrk.MuonBlueprintNodeBuilder(name, **kwargs)
    result.setPrivateTools(the_tool)
    return result
 
 

MuonMaterialDecoratorToolCfg()

MuonMaterialDecoratorToolCfg	(		flags,
			name = "MuonMaterialDecoratorTool",
		**	kwargs )

Definition at line 181 of file ActsGeometryConfig.py.

def MuonMaterialDecoratorToolCfg(flags, name = "MuonMaterialDecoratorTool", **kwargs):    
    result = ComponentAccumulator()
    fileName = flags.Acts.TrackingGeometry.MuonMaterialSource
    folderName = flags.Acts.TrackingGeometry.MuonMaterialMapPath
    if flags.Acts.TrackingGeometry.MuonMaterialSource == "Default":
        # MuonMaterialDecoratorTool picks its reader (Json or Root) from the file
        # extension, so this is what selects the default format read back in.
        folderName = "ACTS/MaterialMaps/gen3"
        fileName = "material-maps-muon-v1.json"
    kwargs.setdefault('MuonMaterialDbFolder', folderName)
    kwargs.setdefault('MuonMaterialDbFile', fileName)
    the_tool = CompFactory.MuonGMR4.MuonMaterialDecoratorTool(name, **kwargs)
    result.setPrivateTools(the_tool)
    return result