Object for temporary storage of a CKF tree search result. More...

#include <CKFResult.h>

Public Types
using	Seed = ASeed
	Copy seed definition.

using	Hit = AHit
	Copy hit definition.

Public Member Functions
template<class AState >
	CKFResult (const std::vector< TrackFindingCDC::WithWeight< const AState * > > &path, const genfit::MeasuredStateOnPlane &mSoP)
	Constructor from the path of the result and the final mSoP, which defines the track position of the resulting track.

const std::vector< const AHit * > &	getHits () const
	Getter for the stored hits.

const ASeed *	getSeed () const
	Getter for the stored seeds.

double	getChi2 () const
	Getter for the chi2.

double	getMaximalChi2 () const
	Getter for the maximal chi2 of all stored hits. NAN means there is no valid chi2 at all.

double	getMinimalChi2 () const
	Getter for the minimal chi2 of all stored hits. NAN means there is no valid chi2 at all.

const ROOT::Math::XYZVector &	getPosition () const
	Get the position this track should start at.

const ROOT::Math::XYZVector &	getMomentum () const
	Get the momentum this track should start at (defined at the position)

short	getCharge () const
	Set the charge of the track.

double	getWeightSum () const
	Getter for the sum of weights.

const genfit::MeasuredStateOnPlane &	getSeedMSoP () const
	Getter for the mSoP of the seed associated with this result.

const genfit::MeasuredStateOnPlane &	getMSoP () const
	Getter for the mSoP associated with this result.

Private Attributes
const ASeed *	m_seed
	The stored seed.

std::vector< const AHit * >	m_hits
	The stored hits.

double	m_chi2 = 0
	The stored chi2.

double	m_maximalChi2 = NAN
	The maximal chi2 of the single states. NAN means there is no valid chi2 at all.

double	m_minimalChi2 = NAN
	The minimal chi2 of the single states NAN means there is no valid chi2 at all.

ROOT::Math::XYZVector	m_trackPosition
	The position this track should start at.

ROOT::Math::XYZVector	m_trackMomentum
	The momentum this track should start at (defined at the position)

short	m_trackCharge = 0
	The charge of the track.

TrackFindingCDC::Weight	m_weightSum = 0
	The stored sum of weights.

genfit::MeasuredStateOnPlane	m_seedMSoP
	The measured state on plane, which was used from the seed.

genfit::MeasuredStateOnPlane	m_mSoP
	The measured state on plane, which this result was initialized with.

Detailed Description

template<class ASeed, class AHit>
class Belle2::CKFResult< ASeed, AHit >

Object for temporary storage of a CKF tree search result.

It stores the seed together with the associated hits and a chi2 value. This object will not be stored to the DataStore, but is only for internal usage.

All sub-detector CKFs should inherit their own object from this.

Definition at line 30 of file CKFResult.h.

Member Typedef Documentation

◆ Hit

using Hit = AHit

Copy hit definition.

Definition at line 36 of file CKFResult.h.

◆ Seed

using Seed = ASeed

Copy seed definition.

Definition at line 34 of file CKFResult.h.

Constructor & Destructor Documentation

◆ CKFResult()

CKFResult	(	const std::vector< TrackFindingCDC::WithWeight< const AState * > > &	path,
		const genfit::MeasuredStateOnPlane &	mSoP
	)

inline

Constructor from the path of the result and the final mSoP, which defines the track position of the resulting track.

Definition at line 40 of file CKFResult.h.

      : m_seed(path.front()->getSeed()),
        m_trackPosition(mSoP.getPos()),
        m_trackMomentum(mSoP.getMom()),
        m_trackCharge(static_cast<short>(mSoP.getCharge())),
        m_seedMSoP(path.front()->getMeasuredStateOnPlane()),
        m_mSoP(mSoP)
    {
      m_hits.reserve(path.size());
 
      for (const TrackFindingCDC::WithWeight<const AState*> state : path) {
        const Hit* hit = state->getHit();
        if (hit) {
          m_hits.push_back(hit);
        }
 
        if (state->isFitted()) {
          const double stateChi2 = state->getChi2();
          m_chi2 += stateChi2;
 
          // The initial value of the maximal and minimal chi2 is NAN, so we always override this default value.
          if (stateChi2 > m_maximalChi2 or std::isnan(m_maximalChi2)) {
            m_maximalChi2 = stateChi2;
          }
 
          if (stateChi2 < m_minimalChi2 or std::isnan(m_minimalChi2)) {
            m_minimalChi2 = stateChi2;
          }
        }
 
        m_weightSum += state.getWeight();
      }
    }

Member Function Documentation

◆ getCharge()

short getCharge ( ) const

inline

Set the charge of the track.

Definition at line 117 of file CKFResult.h.

    {
      return m_trackCharge;
    }

◆ getChi2()

double getChi2 ( ) const

inline

Getter for the chi2.

Definition at line 87 of file CKFResult.h.

    {
      return m_chi2;
    }

◆ getHits()

const std::vector< const AHit * > & getHits ( ) const

inline

Getter for the stored hits.

Definition at line 75 of file CKFResult.h.

    {
      return m_hits;
    }

◆ getMaximalChi2()

double getMaximalChi2 ( ) const

inline

Getter for the maximal chi2 of all stored hits. NAN means there is no valid chi2 at all.

Definition at line 93 of file CKFResult.h.

    {
      return m_maximalChi2;
    }

◆ getMinimalChi2()

double getMinimalChi2 ( ) const

inline

Getter for the minimal chi2 of all stored hits. NAN means there is no valid chi2 at all.

Definition at line 99 of file CKFResult.h.

    {
      return m_minimalChi2;
    }

◆ getMomentum()

const ROOT::Math::XYZVector & getMomentum ( ) const

inline

Get the momentum this track should start at (defined at the position)

Definition at line 111 of file CKFResult.h.

    {
      return m_trackMomentum;
    }

◆ getMSoP()

const genfit::MeasuredStateOnPlane & getMSoP ( ) const

inline

Getter for the mSoP associated with this result.

Definition at line 135 of file CKFResult.h.

    {
      return m_mSoP;
    }

◆ getPosition()

const ROOT::Math::XYZVector & getPosition ( ) const

inline

Get the position this track should start at.

Definition at line 105 of file CKFResult.h.

    {
      return m_trackPosition;
    }

◆ getSeed()

const ASeed * getSeed ( ) const

inline

Getter for the stored seeds.

Definition at line 81 of file CKFResult.h.

    {
      return m_seed;
    }

◆ getSeedMSoP()

const genfit::MeasuredStateOnPlane & getSeedMSoP ( ) const

inline

Getter for the mSoP of the seed associated with this result.

Definition at line 129 of file CKFResult.h.

    {
      return m_seedMSoP;
    }

◆ getWeightSum()

double getWeightSum ( ) const

inline

Getter for the sum of weights.

Definition at line 123 of file CKFResult.h.

    {
      return m_weightSum;
    }

Member Data Documentation

◆ m_chi2

double m_chi2 = 0

private

The stored chi2.

Definition at line 146 of file CKFResult.h.

◆ m_hits

std::vector<const AHit*> m_hits

private

The stored hits.

Definition at line 144 of file CKFResult.h.

◆ m_maximalChi2

double m_maximalChi2 = NAN

private

The maximal chi2 of the single states. NAN means there is no valid chi2 at all.

Definition at line 148 of file CKFResult.h.

◆ m_minimalChi2

double m_minimalChi2 = NAN

private

The minimal chi2 of the single states NAN means there is no valid chi2 at all.

Definition at line 150 of file CKFResult.h.

◆ m_mSoP

genfit::MeasuredStateOnPlane m_mSoP

private

The measured state on plane, which this result was initialized with.

Definition at line 162 of file CKFResult.h.

◆ m_seed

const ASeed* m_seed

private

The stored seed.

Definition at line 142 of file CKFResult.h.

◆ m_seedMSoP

genfit::MeasuredStateOnPlane m_seedMSoP

private

The measured state on plane, which was used from the seed.

Definition at line 160 of file CKFResult.h.

◆ m_trackCharge

short m_trackCharge = 0

private

The charge of the track.

Definition at line 156 of file CKFResult.h.

◆ m_trackMomentum

ROOT::Math::XYZVector m_trackMomentum

private

The momentum this track should start at (defined at the position)

Definition at line 154 of file CKFResult.h.

◆ m_trackPosition

ROOT::Math::XYZVector m_trackPosition

private

The position this track should start at.

Definition at line 152 of file CKFResult.h.

◆ m_weightSum

TrackFindingCDC::Weight m_weightSum = 0

private

The stored sum of weights.

Definition at line 158 of file CKFResult.h.

The documentation for this class was generated from the following file:

tracking/ckf/general/entities/include/CKFResult.h

Public Types

Public Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Hit

◆ Seed

Constructor & Destructor Documentation

◆ CKFResult()

Member Function Documentation

◆ getCharge()

◆ getChi2()

◆ getHits()

◆ getMaximalChi2()

◆ getMinimalChi2()

◆ getMomentum()

◆ getMSoP()

◆ getPosition()

◆ getSeed()

◆ getSeedMSoP()

◆ getWeightSum()

Member Data Documentation

◆ m_chi2

◆ m_hits

◆ m_maximalChi2

◆ m_minimalChi2

◆ m_mSoP

◆ m_seed

◆ m_seedMSoP

◆ m_trackCharge

◆ m_trackMomentum

◆ m_trackPosition

◆ m_weightSum