CbmRichRingFitterEllipseTau Class Reference

Here the ring is fitted with Taubin algorithm from A. Ayriyan, G. Ososkov, N. Chernov. More...

#include <CbmRichRingFitterEllipseTau.h>

Inheritance diagram for CbmRichRingFitterEllipseTau:

Collaboration diagram for CbmRichRingFitterEllipseTau:

Public Member Functions
	CbmRichRingFitterEllipseTau ()
	Default constructor. More...
virtual	~CbmRichRingFitterEllipseTau ()
	Destructor. More...
virtual void	DoFit (CbmRichRingLight *ring)
	Inherited from CbmRichRingFitterBase. More...

Protected Member Functions
virtual void	CalcChi2 (CbmRichRingLight *ring)
	Calculate chi2 of the ellipse fit. More...
virtual void	CalcChi2 (double A, double B, double C, double D, double E, double F, CbmRichRingLight *ring)
	Calculate chi2 of the ellipse fitting using parameters of 2D curve. More...

Static Protected Attributes
static const int	MAX_NOF_HITS_IN_RING

Private Member Functions
void	TransformEllipse (CbmRichRingLight *ring)
	Transform fitted curve to ellipse parameters. More...
void	InitMatrices (CbmRichRingLight *ring)
	Initialize all matrices. More...
void	Taubin ()
	Perform Taubin method. More...
void	Inv5x5 ()
	Invert 5x5 matrix. More...
void	AMultB (const double *const ap, int na, int ncolsa, const double *const bp, int nb, int ncolsb, double *cp)
	Matrices multiplication. More...
void	Jacobi (double a[5][5], double d[5], double v[5][5])
	Jacobi method. More...
void	Eigsrt (double d[5], double v[5][5])
	Find eigenvalues. More...

Private Attributes
double	fM [36]
double	fP [25]
double	fQ [25]
double	fZ [MAX_NOF_HITS_IN_RING *6]
double	fZT [MAX_NOF_HITS_IN_RING *6]
double	fAlgPar [6]

Detailed Description

Here the ring is fitted with Taubin algorithm from A. Ayriyan, G. Ososkov, N. Chernov.

Author

Alexander Ayriyan and Semen Lebedev s.leb.nosp@m.edev.nosp@m.@gsi..nosp@m.de

Date

2011

Definition at line 35 of file CbmRichRingFitterEllipseTau.h.

Constructor & Destructor Documentation

CbmRichRingFitterEllipseTau()

CbmRichRingFitterEllipseTau::CbmRichRingFitterEllipseTau

(

)

Default constructor.

Definition at line 90 of file CbmRichRingFitterEllipseTau.cxx.

~CbmRichRingFitterEllipseTau()

CbmRichRingFitterEllipseTau::~CbmRichRingFitterEllipseTau ( )

virtual

Destructor.

Definition at line 92 of file CbmRichRingFitterEllipseTau.cxx.

Member Function Documentation

AMultB()

void CbmRichRingFitterEllipseTau::AMultB ( const double *const  ap, int  na, int  ncolsa, const double *const  bp, int  nb, int  ncolsb, double *  cp  )

private

Matrices multiplication.

Definition at line 525 of file CbmRichRingFitterEllipseTau.cxx.

Referenced by InitMatrices(), and Taubin().

CalcChi2() [1/2]

virtual void CbmRichRingFitterEllipseBase::CalcChi2 ( CbmRichRingLight *  ring )

inlineprotectedvirtualinherited

Calculate chi2 of the ellipse fit.

Parameters

[in,out]

ring

Fitted RICH ring with ellipse fitter.

Reimplemented from CbmRichRingFitterBase.

Definition at line 42 of file CbmRichRingFitterEllipseBase.h.

References CbmRichHitLight::fX, CbmRichHitLight::fY, CbmRichRingLight::GetAaxis(), CbmRichRingLight::GetBaxis(), CbmRichRingLight::GetHit(), CbmRichRingLight::GetNofHits(), CbmRichRingLight::GetXF1(), CbmRichRingLight::GetXF2(), CbmRichRingLight::GetYF1(), CbmRichRingLight::GetYF2(), CbmRichRingLight::SetChi2(), sqrt(), x, and y.

Referenced by DoFit(), CbmRichRingFitterEllipseMinuit::DoFit(), and TransformEllipse().

CalcChi2() [2/2]

virtual void CbmRichRingFitterEllipseBase::CalcChi2 ( double  A, double  B, double  C, double  D, double  E, double  F, CbmRichRingLight *  ring  )

inlineprotectedvirtualinherited

Calculate chi2 of the ellipse fitting using parameters of 2D curve.

Parameters

[in]	A	A parameter of curve.
[in]	B	B parameter of curve.
[in]	C	C parameter of curve.
[in]	D	D parameter of curve.
[in]	E	E parameter of curve.
[in]	F	F parameter of curve.
[in]	ring	Fitted RICH ring with ellipse fitter.

Definition at line 87 of file CbmRichRingFitterEllipseBase.h.

References fabs(), CbmRichHitLight::fX, CbmRichHitLight::fY, CbmRichRingLight::GetHit(), CbmRichRingLight::GetNofHits(), CbmRichRingLight::SetChi2(), sqrt(), x, and y.

DoFit()

void CbmRichRingFitterEllipseTau::DoFit ( CbmRichRingLight *  ring )

virtual

Inherited from CbmRichRingFitterBase.

Implements CbmRichRingFitterBase.

Definition at line 94 of file CbmRichRingFitterEllipseTau.cxx.

References CbmRichRingFitterEllipseBase::CalcChi2(), CbmRichRingLight::GetNofHits(), InitMatrices(), CbmRichRingFitterBase::MAX_NOF_HITS_IN_RING, CbmRichRingLight::SetRadius(), CbmRichRingLight::SetXYABP(), Taubin(), and TransformEllipse().

Referenced by CbmLitMCTrackCreator::AddRingParameters(), CbmKresConversionKF::CheckIfElectron(), CbmKresEta::CheckIfElectron(), CbmKresConversionManualmbias4::CheckIfElectron(), CbmKresConversionManualmbias1::CheckIfElectron(), CbmKresConversionManualmbias2::CheckIfElectron(), CbmKresConversionManualmbias3::CheckIfElectron(), CbmKresConversionManual::CheckIfElectron(), CbmKresConversionPhotons::CheckIfElectron(), CbmKresConversionCorrectedPhotons::CheckIfElectron(), CbmKresConversionGeneral::FitAndFillHistEllipse(), CbmRichGeoTest::FitAndFillHistEllipse(), CbmRichRingFitterQa::GenerateEllipse(), CbmRichPMTMapping::MatchFinder(), CbmRichCorrectionVector::MatchFinder(), CbmRichPMTMapping::ProjectionProducer(), and CbmRichPMTMapping::ProjectionProducer2().

Eigsrt()

void CbmRichRingFitterEllipseTau::Eigsrt ( double  d[5], double  v[5][5]  )

private

Find eigenvalues.

Definition at line 639 of file CbmRichRingFitterEllipseTau.cxx.

References d, i, and v.

InitMatrices()

void CbmRichRingFitterEllipseTau::InitMatrices ( CbmRichRingLight *  ring )

private

Initialize all matrices.

Definition at line 169 of file CbmRichRingFitterEllipseTau.cxx.

References AMultB(), fM, fP, fQ, CbmRichHitLight::fX, CbmRichHitLight::fY, fZ, fZT, GA00, GA01, GA02, GA03, GA04, GA05, GA11, GA12, GA13, GA14, GA15, GA22, GA23, GA24, GA25, GA33, GA34, GA35, GA44, GA45, GA50, GA51, GA52, GA53, GA54, CbmRichRingLight::GetHit(), CbmRichRingLight::GetNofHits(), GM00, GM01, GM02, GM03, GM04, GM10, GM11, GM12, GM13, GM14, GM20, GM21, GM22, GM23, GM24, GM30, GM31, GM32, GM33, GM34, GM40, GM41, GM42, GM43, GM44, i, x, and y.

Referenced by DoFit().

Inv5x5()

void CbmRichRingFitterEllipseTau::Inv5x5 ( )

private

Invert 5x5 matrix.

Definition at line 288 of file CbmRichRingFitterEllipseTau.cxx.

References fP, GM00, GM01, GM02, GM03, GM04, GM10, GM11, GM12, GM13, GM14, GM20, GM21, GM22, GM23, GM24, GM30, GM31, GM32, GM33, GM34, GM40, GM41, GM42, GM43, and GM44.

Referenced by Taubin().

Jacobi()

void CbmRichRingFitterEllipseTau::Jacobi ( double  a[5][5], double  d[5], double  v[5][5]  )

private

Jacobi method.

Definition at line 560 of file CbmRichRingFitterEllipseTau.cxx.

Taubin()

void CbmRichRingFitterEllipseTau::Taubin ( )

private

Perform Taubin method.

Definition at line 124 of file CbmRichRingFitterEllipseTau.cxx.

References AMultB(), fAlgPar, fM, fP, fQ, GA05, GA15, GA25, GA35, GA45, and Inv5x5().

Referenced by DoFit().

TransformEllipse()

void CbmRichRingFitterEllipseTau::TransformEllipse ( CbmRichRingLight *  ring )

private

Transform fitted curve to ellipse parameters.

Parameters

[in,out]

ring

RICH ring.

Definition at line 231 of file CbmRichRingFitterEllipseTau.cxx.

References CbmRichRingFitterEllipseBase::CalcChi2(), cos(), fabs(), fAlgPar, CbmRichRingLight::GetAaxis(), CbmRichRingLight::GetBaxis(), CbmRichRingLight::GetPhi(), CbmRichRingLight::SetAaxis(), CbmRichRingLight::SetABCDEF(), CbmRichRingLight::SetBaxis(), CbmRichRingLight::SetPhi(), CbmRichRingLight::SetRadius(), CbmRichRingLight::SetXYABP(), and sin().

Referenced by DoFit().

Member Data Documentation

fAlgPar

double CbmRichRingFitterEllipseTau::fAlgPar[6]

private

Definition at line 58 of file CbmRichRingFitterEllipseTau.h.

Referenced by Taubin(), and TransformEllipse().

fM

double CbmRichRingFitterEllipseTau::fM[36]

private

Definition at line 53 of file CbmRichRingFitterEllipseTau.h.

Referenced by InitMatrices(), and Taubin().

fP

double CbmRichRingFitterEllipseTau::fP[25]

private

Definition at line 54 of file CbmRichRingFitterEllipseTau.h.

Referenced by InitMatrices(), Inv5x5(), and Taubin().

fQ

double CbmRichRingFitterEllipseTau::fQ[25]

private

Definition at line 55 of file CbmRichRingFitterEllipseTau.h.

Referenced by InitMatrices(), and Taubin().

fZ

double CbmRichRingFitterEllipseTau::fZ[MAX_NOF_HITS_IN_RING *6]

private

Definition at line 56 of file CbmRichRingFitterEllipseTau.h.

Referenced by InitMatrices().

fZT

double CbmRichRingFitterEllipseTau::fZT[MAX_NOF_HITS_IN_RING *6]

private

Definition at line 57 of file CbmRichRingFitterEllipseTau.h.

Referenced by InitMatrices().

MAX_NOF_HITS_IN_RING

const int CbmRichRingFitterBase::MAX_NOF_HITS_IN_RING

staticprotectedinherited

Initial value:

=
    400

Definition at line 70 of file CbmRichRingFitterBase.h.

Referenced by DoFit().

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

• CbmRichRingFitterEllipseTau.h
• CbmRichRingFitterEllipseTau.cxx