genf::GFRecoHitIfc< HitPolicy > Class Template Reference

#include "GFRecoHitIfc.h"

Inheritance diagram for genf::GFRecoHitIfc< HitPolicy >:

Public Member Functions
	GFRecoHitIfc (int dim)
	Constructor specifying dimension of hit coordinate vector. More...
virtual	~GFRecoHitIfc ()
virtual const GFDetPlane &	getDetPlane (GFAbsTrackRep *rep)
	Returns the detector plane object for this hit and a given track representation. More...
virtual TMatrixT< Double_t >	getHitCoord (const GFDetPlane &plane, const GFDetPlane &planePrev)
	Get hit coordinates in a specific detector plane. More...
virtual TMatrixT< Double_t >	getHitCoord (const GFDetPlane &plane)
virtual TMatrixT< Double_t >	getHitCov (const GFDetPlane &plane)
	Get hit covariances in a specific detector plane. More...
virtual TMatrixT< Double_t >	getHitCov (const GFDetPlane &plane, const GFDetPlane &planePrev, const TMatrixT< Double_t > &state, const Double_t &mass)
const std::string &	getPolicyName ()
virtual TMatrixT< Double_t >	getHMatrix (const GFAbsTrackRep *stateVector)=0
	Get transformation matrix. Transformation between hit coordinates and track representation coordinates. More...
virtual TMatrixT< Double_t >	getHMatrix (const GFAbsTrackRep *stateVector, const Double_t &, const Double_t &)=0
virtual TMatrixT< Double_t >	residualVector (const GFAbsTrackRep *stateVector, const TMatrixT< Double_t > &state, const GFDetPlane &d)
	Calculate residual with respect to a track representation. More...
virtual TMatrixT< Double_t >	residualVector (const GFAbsTrackRep *stateVector, const TMatrixT< Double_t > &state, const GFDetPlane &d, const GFDetPlane &dPrev, const double &mass)
TMatrixT< Double_t >	getRawHitCov () const
	Get raw hit covariances. More...
TMatrixT< Double_t >	getRawHitCoord () const
	Get raw hit coordinates. More...
virtual GFAbsRecoHit *	clone ()=0
	Get clone of this object. More...
virtual void	Print (std::ostream &out=std::cout) const
	Print raw hit coordinates. More...
int	getNparHit ()

Protected Attributes
HitPolicy	fPolicy
TMatrixT< Double_t >	fHitCoord
	Vector of raw coordinates of hit. More...
TMatrixT< Double_t >	fHitCov
	Covariance of raw hit coordinates. More...

Detailed Description

template<class HitPolicy>
class genf::GFRecoHitIfc< HitPolicy >

Definition at line 60 of file GFRecoHitIfc.h.

Constructor & Destructor Documentation

template<class HitPolicy >

genf::GFRecoHitIfc< HitPolicy >::GFRecoHitIfc ( int  dim )

inline

Constructor specifying dimension of hit coordinate vector.

Definition at line 67 of file GFRecoHitIfc.h.

: GFAbsRecoHit(dim) { ; }

template<class HitPolicy >

virtual genf::GFRecoHitIfc< HitPolicy >::~GFRecoHitIfc ( )

inlinevirtual

Definition at line 68 of file GFRecoHitIfc.h.

{ ; }

Member Function Documentation

virtual GFAbsRecoHit* genf::GFAbsRecoHit::clone ( )

pure virtualinherited

Get clone of this object.

Virtual abstract method. Has to be implemented by inherting classes. Creates a deep copy of this object. Ownership is trandsferred to the caller!

Implemented in genf::PointHit.

Referenced by genf::GFAbsRecoHit::getRawHitCoord().

template<class HitPolicy >

virtual const GFDetPlane& genf::GFRecoHitIfc< HitPolicy >::getDetPlane ( GFAbsTrackRep *  rep )

inlinevirtual

Returns the detector plane object for this hit and a given track representation.

The actutal code for this method depends on the hit geometry and is implemented in the HitPolicy

See also

PlanarHitPolicy

SpacepointHitPolicy

WirepointHitPolicy

Implements genf::GFAbsRecoHit.

Definition at line 79 of file GFRecoHitIfc.h.

    {
      return fPolicy.detPlane(this, rep);
    }

template<class HitPolicy >

virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCoord ( const GFDetPlane &  plane, const GFDetPlane &  planePrev  )

inlinevirtual

Get hit coordinates in a specific detector plane.

Implementation in the HitPolicy

Implements genf::GFAbsRecoHit.

Definition at line 88 of file GFRecoHitIfc.h.

    {
      return fPolicy.hitCoord(this, plane, planePrev);
    }

template<class HitPolicy >

virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCoord ( const GFDetPlane &  plane )

inlinevirtual

Implements genf::GFAbsRecoHit.

Definition at line 92 of file GFRecoHitIfc.h.

    {
      return fPolicy.hitCoord(this, plane);
    }

template<class HitPolicy >

virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCov ( const GFDetPlane &  plane )

inlinevirtual

Get hit covariances in a specific detector plane.

Implementation in the HitPolicy

Implements genf::GFAbsRecoHit.

Definition at line 101 of file GFRecoHitIfc.h.

    {
      return fPolicy.hitCov(this, plane);
    }

template<class HitPolicy >

virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCov ( const GFDetPlane &  plane, const GFDetPlane &  planePrev, const TMatrixT< Double_t > &  state, const Double_t &  mass  )

inlinevirtual

Implements genf::GFAbsRecoHit.

Definition at line 105 of file GFRecoHitIfc.h.

    {
      return fPolicy.hitCov(this, plane, planePrev, state, mass);
    }

virtual TMatrixT<Double_t> genf::GFAbsRecoHit::getHMatrix ( const GFAbsTrackRep *  stateVector )

pure virtualinherited

Get transformation matrix. Transformation between hit coordinates and track representation coordinates.

This is a virtual abstract method which has to be implemented in the child classes.

In general there is a linear transformation between the coordinate system of the hit (which is defined by the detector plane) and the coordinates of the track representation in that plane. In the most simple case the track representation has 5 parameters (space + momentum) while a hit usually has less (one to three space coordinates).

The transformation matrix is then simply projecting out the space-components of the track representation.

Its dimensions are NxM. Where N is the number of dimensions of the hit in the detector plane (usually 2 or 1) and M is the dimension of the track representation.

In this method a hit has to define with which track representations it can work together. It should be the only point where this explicit coordination is necessary.

For example code see implementing classes below:

Implemented in genf::PointHit.

Referenced by genf::GFKalman::getChi2Hit(), genf::GFKalman::processHit(), and genf::GFAbsRecoHit::residualVector().

virtual TMatrixT<Double_t> genf::GFAbsRecoHit::getHMatrix ( const GFAbsTrackRep *  stateVector, const Double_t &  , const Double_t &    )

pure virtualinherited

Implemented in genf::PointHit.

int genf::GFAbsRecoHit::getNparHit ( )

inlineinherited

Definition at line 240 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::fNparHit.

{ return fNparHit; }

template<class HitPolicy >

const std::string& genf::GFRecoHitIfc< HitPolicy >::getPolicyName ( )

inlinevirtual

Reimplemented from genf::GFAbsRecoHit.

Definition at line 113 of file GFRecoHitIfc.h.

{ return fPolicy.getName(); }

TMatrixT<Double_t> genf::GFAbsRecoHit::getRawHitCoord ( ) const

inlineinherited

Get raw hit coordinates.

Definition at line 185 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::clone(), genf::GFAbsRecoHit::fHitCoord, genf::GFAbsRecoHit::getDetPlane(), genf::GFAbsRecoHit::getHitCoord(), and genf::GFAbsRecoHit::getHitCov().

Referenced by genf::GFWireHitPolicy::checkPlane(), genf::GFWirepointHitPolicy::checkPlane(), genf::GFWireHitPolicy::detPlane(), genf::GFWirepointHitPolicy::detPlane(), genf::GFSpacepointHitPolicy::detPlane(), genf::GFWireHitPolicy::hitCoord(), genf::GFWirepointHitPolicy::hitCoord(), genf::GFSpacepointHitPolicy::hitCoord(), genf::GFPlanarHitPolicy::hitCoord(), and genf::GFKalman::processHit().

{ return fHitCoord; }

TMatrixT<Double_t> genf::GFAbsRecoHit::getRawHitCov ( ) const

inlineinherited

Get raw hit covariances.

Definition at line 180 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::fHitCov.

Referenced by genf::GFWireHitPolicy::hitCov(), genf::GFWirepointHitPolicy::hitCov(), genf::GFSpacepointHitPolicy::hitCov(), and genf::GFPlanarHitPolicy::hitCov().

{ return fHitCov; }

virtual void genf::GFAbsRecoHit::Print ( std::ostream &  out = std::cout ) const

inlinevirtualinherited

Print raw hit coordinates.

Definition at line 236 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::getPolicyName(), and genf::PrintROOTobject().

{ PrintROOTobject(out, fHitCoord); }

virtual TMatrixT<Double_t> genf::GFAbsRecoHit::residualVector ( const GFAbsTrackRep *  stateVector, const TMatrixT< Double_t > &  state, const GFDetPlane &  d  )

inlinevirtualinherited

Calculate residual with respect to a track representation.

Returns the N-dimensional residual of this vector to a given track representation.

This method is not doing any extrapolation. But it creates the necessary detector plane object. See GFAbsRecoHit::getGFDetPlane

Parameters

stateVector	pointer to track representation - used to synchronize with the track repesentation
state	parameter vector of the track representation

See also

setHMatrix

getGFDetPlane

Definition at line 149 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::getHitCoord(), and genf::GFAbsRecoHit::getHMatrix().

Referenced by genf::GFKalman::getChi2Hit(), genf::GFTrack::getResiduals(), and genf::GFKalman::processHit().

    {
      std::cout << "GFAbsRecoHit::residualVector(3args) Not correctly Using theta -- multiple "
                   "scattering -- information !!! Fix this if you really want to use getChi2Hit"
                << std::endl;
      TMatrixT<Double_t> H = getHMatrix(stateVector);
      return (getHitCoord(d) - (H * state));
    }

virtual TMatrixT<Double_t> genf::GFAbsRecoHit::residualVector ( const GFAbsTrackRep *  stateVector, const TMatrixT< Double_t > &  state, const GFDetPlane &  d, const GFDetPlane &  dPrev, const double &  mass  )

inlinevirtualinherited

Definition at line 160 of file GFAbsRecoHit.h.

References larg4::dist(), genf::GFAbsRecoHit::getHitCoord(), genf::GFAbsRecoHit::getHMatrix(), and genf::GFDetPlane::getO().

    {
      Double_t dist = (d.getO() - dPrev.getO()).Mag();
      //    Double_t mass = 0.104; // close enough for muons, pions, I think.
      Double_t mom = fabs(1.0 / state[0][0]);
      Double_t beta = mom / sqrt(mass * mass + mom * mom);
      if (std::isnan(dist) || dist < 0.2) dist = 0.2; // don't allow 0s here.
      if (std::isnan(beta) || beta < 0.04) beta = 0.04;

      TMatrixT<Double_t> H = getHMatrix(stateVector, beta, dist);
      return (getHitCoord(d, dPrev) - (H * state));
    }

Member Data Documentation

TMatrixT<Double_t> genf::GFAbsRecoHit::fHitCoord

protectedinherited

Vector of raw coordinates of hit.

Definition at line 81 of file GFAbsRecoHit.h.

Referenced by genf::GFAbsRecoHit::getRawHitCoord(), and genf::PointHit::PointHit().

TMatrixT<Double_t> genf::GFAbsRecoHit::fHitCov

protectedinherited

Covariance of raw hit coordinates.

Definition at line 84 of file GFAbsRecoHit.h.

Referenced by genf::GFAbsRecoHit::getRawHitCov(), and genf::PointHit::PointHit().

template<class HitPolicy >

HitPolicy genf::GFRecoHitIfc< HitPolicy >::fPolicy

protected

Definition at line 62 of file GFRecoHitIfc.h.

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

• larreco/v09_25_00/source/larreco/Genfit/GFRecoHitIfc.h