Struct to hold variables for track clusters. More...

#include <PXDPerformanceStructs.h>

Public Member Functions
	TrackCluster_t ()
	Default constructor.

RecoTrack *	setValues (const PXDIntercept &pxdIntercept, const std::string &recoTracksName="", const std::string &pxdTrackClustersName="PXDClustersFromTracks", const double &mass=Const::electronMass)
	Update values from a PXDIntercept.

Public Attributes
bool	usedInTrack
	True if the cluster is used in tracking.

float	dU
	Residual (meas - prediction) in U.

float	dV
	Residual (meas - prediciton) in V.

Cluster_t	cluster
	Cluster associated to the track.

TrackPoint_t	intersection
	The track-module intersection.

Detailed Description

Struct to hold variables for track clusters.

Definition at line 85 of file PXDPerformanceStructs.h.

Constructor & Destructor Documentation

◆ TrackCluster_t()

TrackCluster_t ( )

inline

Default constructor.

Definition at line 87 of file PXDPerformanceStructs.h.

87: usedInTrack(false), dU(INFINITY), dV(INFINITY) {}

Belle2::PXD::TrackCluster_t::dU

float dU

Residual (meas - prediction) in U.

Definition: PXDPerformanceStructs.h:102

Belle2::PXD::TrackCluster_t::usedInTrack

bool usedInTrack

True if the cluster is used in tracking.

Definition: PXDPerformanceStructs.h:101

Belle2::PXD::TrackCluster_t::dV

float dV

Residual (meas - prediciton) in V.

Definition: PXDPerformanceStructs.h:103

Member Function Documentation

◆ setValues()

RecoTrack * setValues	(	const PXDIntercept &	pxdIntercept,
		const std::string &	recoTracksName = `""`,
		const std::string &	pxdTrackClustersName = `"PXDClustersFromTracks"`,
		const double &	mass = `Const::electronMass`
	)

Update values from a PXDIntercept.

Parameters

pxdIntercept	a PXDIntercept object.
recoTracksName	Name of RecoTrack collection
pxdTrackClustersName	Name of track matched PXDClusters
mass	Mass of the impinging particle

Returns: the pointer of the related RecoTrack object.

Definition at line 74 of file PXDPerformanceStructs.cc.

    {
      auto recoTrackPtr = intersection.setValues(pxdIntercept, recoTracksName, mass);
      // sensor ID from intersectioon
      //VxdID sensorID(pxdIntercept.getSensorID());
      if (!recoTrackPtr) return nullptr; // return nullptr
      // Always set cluster pxdID for saving module id of the intersection.
      cluster.pxdID = getPXDModuleID(VxdID(pxdIntercept.getSensorID()));
      RelationVector<PXDCluster> pxdClusters = DataStore::getRelationsWithObj<PXDCluster>(recoTrackPtr, pxdTrackClustersName);
      // Avoid returning nullptr (false) when no clusters associated,
      // otherwise efficiency is overestimated!
      // if (!pxdClusters.size()) return nullptr;
      usedInTrack = false;
      for (auto& aCluster : pxdClusters) {
        if (aCluster.getSensorID().getID() == pxdIntercept.getSensorID()) {
          cluster.setValues(aCluster);
          dU = aCluster.getU() - pxdIntercept.getCoorU();
          dV = aCluster.getV() - pxdIntercept.getCoorV();
          usedInTrack = true;
          break;
        }
      }
      // If usedInTrack is still false, we can loop PXDClusters datastore to find one closest to the track point. (To be implemented)
      return recoTrackPtr;
    }

Member Data Documentation

◆ cluster

Cluster_t cluster

Cluster associated to the track.

Definition at line 104 of file PXDPerformanceStructs.h.

◆ dU

float dU

Residual (meas - prediction) in U.

Definition at line 102 of file PXDPerformanceStructs.h.

◆ dV

float dV

Residual (meas - prediciton) in V.

Definition at line 103 of file PXDPerformanceStructs.h.

◆ intersection

TrackPoint_t intersection

The track-module intersection.

Definition at line 105 of file PXDPerformanceStructs.h.

◆ usedInTrack