Class implementing a fit for two dimensional trajectory circle using a generic fitting backend. More...

#include <CDCFitter2D.h>

Inheritance diagram for CDCFitter2D< AFitMethod >:

Public Member Functions
	CDCFitter2D ()
	Default constructor.

	~CDCFitter2D ()
	Default destructor.

CDCTrajectory2D	fit (const CDCObservations2D &observations2D) const
	Fits a collection of observation drift circles.

CDCTrajectory2D	fit (CDCObservations2D &&observations2D) const
	Fits a collection of observation drift circles.

void	update (CDCTrajectory2D &trajectory2D, const CDCObservations2D &observations2D) const
	Update the trajectory with a fit to the observations.

void	update (CDCTrajectory2D &trajectory2D, CDCObservations2D &&observations2D) const
	Update the trajectory with a fit to the observations.

CDCTrajectory2D	fit (const CDCTrack &track) const
	Fits the track.

CDCTrajectory2D	fit (const CDCSegment3D &segment) const
	Fits the segment.

CDCTrajectory2D	fit (const CDCSegment2D &fromSegment, const CDCSegment2D &toSegment) const
	Fits to the two segments.

CDCTrajectory2D	fit (const CDCSegment2D &segment) const
	Fits the segment.

CDCTrajectory2D	fit (const std::vector< const CDCWireHit * > &wireHit) const
	Fits to the wire hit observations.

CDCTrajectory2D	fit (const std::vector< const CDCWire * > &wires) const
	Fits to the wire positions. Explicit specialisation to be used from python.

CDCTrajectory2D	fit (const CDCWireHitSegment &wireHits) const
	Fits to the wire positions. Explicit specialisation to be used from python.

void	update (CDCTrajectory2D &trajectory2D, const CDCSegment2D &segment) const
	Updates the given trajectory inplace from the given segment.

void	update (CDCTrajectory2D &trajectory2D, const CDCAxialSegmentPair &axialSegmentPair) const
	Updates the given trajectory inplace from the given segment pair.

void	useOnlyPosition ()
	Setup the fitter to use only the reconstructed positions of the hits.

void	useOnlyOrientation ()
	Setup the fitter to use only reference position and the drift length with right left orientation.

void	usePositionAndOrientation ()
	Setup the fitter to use both the reconstructed position and the reference position and the drift length with right left orientation.

void	setFitVariance (EFitVariance fitVariance)
	Setup the fitter to use the given variance measure by default.

Private Member Functions
template<class AHits >
CDCTrajectory2D	fitGeneric (const AHits &hits) const
	Fits a collection of hit typs which are convertable to observation circles.

template<class AStartHits , class AEndHits >
CDCTrajectory2D	fitGeneric (const AStartHits &startHits, const AEndHits &endHits) const
	Fits together two collections of hit types which are convertable to observation circles.

template<class AHits >
void	updateGeneric (CDCTrajectory2D &trajectory2D, const AHits &hits) const
	Updates a given trajectory with a fit to a collection of hits types, which are convertable to observation circles.

template<class AStartHits , class AEndHits >
void	updateGeneric (CDCTrajectory2D &trajectory2D, const AStartHits &startHits, const AEndHits &endHits) const
	Updates a given trajectory with a fit to two collection of hit types, which are convertable to observation circles.

Private Attributes
bool	m_usePosition = true
	Flag indicating the reconstructed position shall be used in the fit.

bool	m_useOrientation = false
	Flag indicating the reference position and drift length with right left orientation shall be used in the fit.

EFitVariance	m_fitVariance = EFitVariance::c_Proper
	Default variance to be used in the fit.

Detailed Description

template<class AFitMethod>
class Belle2::TrackFindingCDC::CDCFitter2D< AFitMethod >

Class implementing a fit for two dimensional trajectory circle using a generic fitting backend.

Definition at line 33 of file CDCFitter2D.h.

Constructor & Destructor Documentation

◆ CDCFitter2D()

CDCFitter2D

Default constructor.

Definition at line 27 of file CDCFitter2D.icc.h.

      : m_usePosition(true)
      , m_useOrientation(false)
      , m_fitVariance(EFitVariance::c_Proper)
    {
    }

Member Function Documentation

◆ fit() [1/9]

CDCTrajectory2D fit ( CDCObservations2D && observations2D ) const

Fits a collection of observation drift circles.

Definition at line 44 of file CDCFitter2D.icc.h.

    {
      CDCTrajectory2D result;
      update(result, observations2D);
      return result;
    }

◆ fit() [2/9]

CDCTrajectory2D fit ( const CDCObservations2D & observations2D ) const

Fits a collection of observation drift circles.

Definition at line 38 of file CDCFitter2D.icc.h.

    {
      return fit(CDCObservations2D(observations2D));
    }

◆ fit() [3/9]

CDCTrajectory2D fit	(	const CDCSegment2D &	fromSegment,
		const CDCSegment2D &	toSegment
	)		const

Fits to the two segments.

Definition at line 101 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(fromSegment, toSegment);
    }

◆ fit() [4/9]

CDCTrajectory2D fit ( const CDCSegment2D & segment ) const

Fits the segment.

Definition at line 77 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(segment);
    }

◆ fit() [5/9]

CDCTrajectory2D fit ( const CDCSegment3D & segment ) const

Fits the segment.

Definition at line 71 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(segment);
    }

◆ fit() [6/9]

CDCTrajectory2D fit ( const CDCTrack & track ) const

Fits the track.

Definition at line 65 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(track);
    }

◆ fit() [7/9]

CDCTrajectory2D fit ( const CDCWireHitSegment & wireHits ) const

Fits to the wire positions. Explicit specialisation to be used from python.

Definition at line 95 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(wireHits);
    }

◆ fit() [8/9]

CDCTrajectory2D fit ( const std::vector< const CDCWire * > & wires ) const

Fits to the wire positions. Explicit specialisation to be used from python.

Definition at line 89 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(wires);
    }

◆ fit() [9/9]

CDCTrajectory2D fit ( const std::vector< const CDCWireHit * > & wireHit ) const

Fits to the wire hit observations.

Definition at line 83 of file CDCFitter2D.icc.h.

    {
      return fitGeneric(wireHits);
    }

◆ fitGeneric() [1/2]

CDCTrajectory2D fitGeneric ( const AHits & hits ) const

private

Fits a collection of hit typs which are convertable to observation circles.

Definition at line 123 of file CDCFitter2D.icc.h.

    {
      CDCTrajectory2D result;
      updateGeneric(result, hits);
      return result;
    }

◆ fitGeneric() [2/2]

CDCTrajectory2D fitGeneric	(	const AStartHits &	startHits,
		const AEndHits &	endHits
	)		const

private

Fits together two collections of hit types which are convertable to observation circles.

Definition at line 133 of file CDCFitter2D.icc.h.

    {
      CDCTrajectory2D result;
      updateGeneric(result, startHits, endHits);
      return result;
    }

◆ setFitVariance()

void setFitVariance ( EFitVariance fitVariance )

Setup the fitter to use the given variance measure by default.

Definition at line 220 of file CDCFitter2D.icc.h.

    {
      m_fitVariance = fitVariance;
    }

◆ update() [1/4]

void update	(	CDCTrajectory2D &	trajectory2D,
		CDCObservations2D &&	observations2D
	)		const

Update the trajectory with a fit to the observations.

Definition at line 59 of file CDCFitter2D.icc.h.

    {
      AFitMethod::update(trajectory2D, observations2D);
    }

◆ update() [2/4]

void update	(	CDCTrajectory2D &	trajectory2D,
		const CDCAxialSegmentPair &	axialSegmentPair
	)		const

Updates the given trajectory inplace from the given segment pair.

Definition at line 115 of file CDCFitter2D.icc.h.

    {
      return updateGeneric(trajectory2D, axialSegmentPair);
    }

◆ update() [3/4]

void update	(	CDCTrajectory2D &	trajectory2D,
		const CDCObservations2D &	observations2D
	)		const

Update the trajectory with a fit to the observations.

Definition at line 52 of file CDCFitter2D.icc.h.

    {
      return update(trajectory2D, CDCObservations2D(observations2D));
    }

◆ update() [4/4]

void update	(	CDCTrajectory2D &	trajectory2D,
		const CDCSegment2D &	segment
	)		const

Updates the given trajectory inplace from the given segment.

Definition at line 108 of file CDCFitter2D.icc.h.

    {
      updateGeneric(trajectory2D, segment);
    }

◆ updateGeneric() [1/2]

void updateGeneric	(	CDCTrajectory2D &	trajectory2D,
		const AHits &	hits
	)		const

private

Updates a given trajectory with a fit to a collection of hits types, which are convertable to observation circles.

Definition at line 177 of file CDCFitter2D.icc.h.

    {
      CDCObservations2D observations2D;
      observations2D.setFitVariance(m_fitVariance);
 
      if (m_usePosition) {
        observations2D.setFitPos(EFitPos::c_RecoPos);
        observations2D.appendRange(hits);
      }
      if (m_useOrientation) {
        observations2D.setFitPos(EFitPos::c_RLDriftCircle);
        observations2D.appendRange(hits);
      }
 
      if (observations2D.size() < 4) {
        trajectory2D.clear();
      } else {
        AFitMethod::update(trajectory2D, observations2D);
      }
    }

◆ updateGeneric() [2/2]

void updateGeneric	(	CDCTrajectory2D &	trajectory2D,
		const AStartHits &	startHits,
		const AEndHits &	endHits
	)		const

private

Updates a given trajectory with a fit to two collection of hit types, which are convertable to observation circles.

Definition at line 142 of file CDCFitter2D.icc.h.

    {
      CDCObservations2D observations2D;
      observations2D.setFitVariance(m_fitVariance);
 
      if (m_usePosition) {
        observations2D.setFitPos(EFitPos::c_RecoPos);
        observations2D.appendRange(startHits);
      }
      if (m_useOrientation) {
        observations2D.setFitPos(EFitPos::c_RLDriftCircle);
        observations2D.appendRange(startHits);
      }
 
      if (m_usePosition) {
        observations2D.setFitPos(EFitPos::c_RecoPos);
        observations2D.appendRange(endHits);
      }
      if (m_useOrientation) {
        observations2D.setFitPos(EFitPos::c_RLDriftCircle);
        observations2D.appendRange(endHits);
      }
 
      if (observations2D.size() < 4) {
        trajectory2D.clear();
      } else {
        AFitMethod::update(trajectory2D, observations2D);
      }
    }

◆ useOnlyOrientation()

void useOnlyOrientation

Setup the fitter to use only reference position and the drift length with right left orientation.

Definition at line 206 of file CDCFitter2D.icc.h.

    {
      m_usePosition = false;
      m_useOrientation = true;
    }

◆ useOnlyPosition()

void useOnlyPosition

Setup the fitter to use only the reconstructed positions of the hits.

Definition at line 199 of file CDCFitter2D.icc.h.

    {
      m_usePosition = true;
      m_useOrientation = false;
    }

◆ usePositionAndOrientation()

void usePositionAndOrientation

Setup the fitter to use both the reconstructed position and the reference position and the drift length with right left orientation.

Definition at line 213 of file CDCFitter2D.icc.h.

    {
      m_usePosition = true;
      m_useOrientation = true;
    }

Member Data Documentation

◆ m_fitVariance

EFitVariance m_fitVariance = EFitVariance::c_Proper

private

Default variance to be used in the fit.

Definition at line 130 of file CDCFitter2D.h.

◆ m_useOrientation

bool m_useOrientation = false

private

Flag indicating the reference position and drift length with right left orientation shall be used in the fit.

Definition at line 127 of file CDCFitter2D.h.

◆ m_usePosition

bool m_usePosition = true

private

Flag indicating the reconstructed position shall be used in the fit.

Definition at line 124 of file CDCFitter2D.h.

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

tracking/trackFindingCDC/fitting/include/CDCFitter2D.h
tracking/trackFindingCDC/fitting/include/CDCFitter2D.icc.h

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ CDCFitter2D()

Member Function Documentation

◆ fit() [1/9]

◆ fit() [2/9]

◆ fit() [3/9]

◆ fit() [4/9]

◆ fit() [5/9]

◆ fit() [6/9]

◆ fit() [7/9]

◆ fit() [8/9]

◆ fit() [9/9]

◆ fitGeneric() [1/2]

◆ fitGeneric() [2/2]

◆ setFitVariance()

◆ update() [1/4]

◆ update() [2/4]

◆ update() [3/4]

◆ update() [4/4]

◆ updateGeneric() [1/2]

◆ updateGeneric() [2/2]

◆ useOnlyOrientation()

◆ useOnlyPosition()

◆ usePositionAndOrientation()

Member Data Documentation

◆ m_fitVariance

◆ m_useOrientation

◆ m_usePosition