LArSoft  v07_13_02
Liquid Argon Software toolkit - http://larsoft.org/
Public Member Functions | Protected Attributes | Static Private Attributes | List of all members
genf::PointHit Class Reference

#include "PointHit.h"

Inheritance diagram for genf::PointHit:
genf::GFRecoHitIfc< HitPolicy > genf::GFAbsRecoHit

Public Member Functions

 PointHit ()
 
 PointHit (TVector3 point, double res)
 
 PointHit (TVector3 point, std::vector< double > &ref)
 
 PointHit (TVector3 point, TVector3 res)
 
virtual ~PointHit ()
 
virtual GFAbsRecoHit * clone ()
 Get clone of this object. More...
 
virtual TMatrixT< Double_t > getHMatrix (const GFAbsTrackRep *stateVector)
 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 &)
 
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 > 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 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...
 

Static Private Attributes

static const int NparHitRep = 3
 

Detailed Description

Definition at line 17 of file PointHit.h.

Constructor & Destructor Documentation

genf::PointHit::PointHit ( )

Definition at line 22 of file PointHit.cxx.

Referenced by clone().

23  : SpacepointRecoHit(NparHitRep)
24 {}
genf::SpacepointRecoHit
GFRecoHitIfc< GFSpacepointHitPolicy > SpacepointRecoHit
Definition: PointHit.h:15
genf::PointHit::NparHitRep
static const int NparHitRep
Definition: PointHit.h:37
genf::PointHit::PointHit ( TVector3  point,
double  res 
)

Definition at line 26 of file PointHit.cxx.

References d, genf::GFAbsRecoHit::fHitCoord, and genf::GFAbsRecoHit::fHitCov.

27  : SpacepointRecoHit(NparHitRep){
28 
29  fHitCov[0][0] = res*res;
30  fHitCov[1][1] = res*res;
31  fHitCov[2][2] = res*res;
32  GFDetPlane d;
33 
34  fHitCoord[0][0] = point.X();
35  fHitCoord[1][0] = point.Y();
36  fHitCoord[2][0] = point.Z();
37 
38 }
genf::GFAbsRecoHit::fHitCoord
TMatrixT< Double_t > fHitCoord
Vector of raw coordinates of hit.
Definition: GFAbsRecoHit.h:80
genf::SpacepointRecoHit
GFRecoHitIfc< GFSpacepointHitPolicy > SpacepointRecoHit
Definition: PointHit.h:15
d
Float_t d
Definition: plot.C:237
genf::PointHit::NparHitRep
static const int NparHitRep
Definition: PointHit.h:37
genf::GFAbsRecoHit::fHitCov
TMatrixT< Double_t > fHitCov
Covariance of raw hit coordinates.
Definition: GFAbsRecoHit.h:83
genf::PointHit::PointHit ( TVector3  point,
std::vector< double > &  ref 
)

Definition at line 41 of file PointHit.cxx.

References d, genf::GFAbsRecoHit::fHitCoord, and genf::GFAbsRecoHit::fHitCov.

42  : SpacepointRecoHit(NparHitRep){
43 
44  //assert (res.size()==4);
45 
46  fHitCov[0][0] = res.at(0);
47  fHitCov[1][1] = res.at(1);
48  fHitCov[2][2] = res.at(3);
49  fHitCov[1][2] = res.at(2); // yz cov element.
50  fHitCov[2][1] = res.at(2); // yz cov element.
51 
52  GFDetPlane d;
53 
54  fHitCoord[0][0] = point.X();
55  fHitCoord[1][0] = point.Y();
56  fHitCoord[2][0] = point.Z();
57 }
genf::GFAbsRecoHit::fHitCoord
TMatrixT< Double_t > fHitCoord
Vector of raw coordinates of hit.
Definition: GFAbsRecoHit.h:80
genf::SpacepointRecoHit
GFRecoHitIfc< GFSpacepointHitPolicy > SpacepointRecoHit
Definition: PointHit.h:15
d
Float_t d
Definition: plot.C:237
genf::PointHit::NparHitRep
static const int NparHitRep
Definition: PointHit.h:37
genf::GFAbsRecoHit::fHitCov
TMatrixT< Double_t > fHitCov
Covariance of raw hit coordinates.
Definition: GFAbsRecoHit.h:83
genf::PointHit::PointHit ( TVector3  point,
TVector3  res 
)
genf::PointHit::~PointHit ( )
virtual

Definition at line 19 of file PointHit.cxx.

20 {}

Member Function Documentation

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

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!

Implements genf::GFAbsRecoHit.

Definition at line 59 of file PointHit.cxx.

References PointHit().

59  {
60  return new PointHit(*this);
61 }
template<class HitPolicy >
virtual const GFDetPlane& genf::GFRecoHitIfc< HitPolicy >::getDetPlane ( GFAbsTrackRep *  rep)
inlinevirtualinherited

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 82 of file GFRecoHitIfc.h.

82 {return fPolicy.detPlane(this,rep);}
template<class HitPolicy >
virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCoord ( const GFDetPlane &  plane,
const GFDetPlane &  planePrev 
)
inlinevirtualinherited

Get hit coordinates in a specific detector plane.

Implementation in the HitPolicy

Implements genf::GFAbsRecoHit.

Definition at line 88 of file GFRecoHitIfc.h.

89  {return fPolicy.hitCoord(this,plane,planePrev);}
template<class HitPolicy >
virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCoord ( const GFDetPlane &  plane)
inlinevirtualinherited

Implements genf::GFAbsRecoHit.

Definition at line 90 of file GFRecoHitIfc.h.

91  {return fPolicy.hitCoord(this,plane);}
template<class HitPolicy >
virtual TMatrixT<Double_t> genf::GFRecoHitIfc< HitPolicy >::getHitCov ( const GFDetPlane &  plane)
inlinevirtualinherited

Get hit covariances in a specific detector plane.

Implementation in the HitPolicy

Implements genf::GFAbsRecoHit.

Definition at line 97 of file GFRecoHitIfc.h.

98  {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 
)
inlinevirtualinherited

Implements genf::GFAbsRecoHit.

Definition at line 99 of file GFRecoHitIfc.h.

100  {return fPolicy.hitCov(this,plane,planePrev, state, mass);}
TMatrixT< Double_t > genf::PointHit::getHMatrix ( const GFAbsTrackRep *  stateVector)
virtual

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:

Implements genf::GFAbsRecoHit.

Definition at line 139 of file PointHit.cxx.

140 {
141  if (dynamic_cast<const genf::RKTrackRep*>(stateVector) != nullptr){
142  //I know, since this is the same everytime, it could be done in the
143  //the constructor, but I do it here anyway, to make clear that in the
144  //case of several track-reps per hit, it would have to be done here
145  // fHMatrix.ResizeTo(NparHitRep,5);
146 
147 
148  // TMatrixT<Double_t> HMatrix(2,6);
149  // WTF? Making this 2,5 not 2,6. EC, 3-Jan-2011.
150  TMatrixT<Double_t> HMatrix(2,5);
151 
152  HMatrix[0][0] = 0.;
153  HMatrix[0][1] = 0.;
154  HMatrix[0][2] = 0.;
155  HMatrix[0][3] = 1.;
156  HMatrix[0][4] = 0.;
157  //HMatrix[0][5] = 0.;
158 
159  HMatrix[1][0] = 0.;
160  HMatrix[1][1] = 0.;
161  HMatrix[1][2] = 0.;
162  HMatrix[1][3] = 0.;
163  HMatrix[1][4] = 1.;
164  //HMatrix[1][5] = 0.;
165 
166  return HMatrix;
167  }
168  else if(dynamic_cast<const genf::SlTrackRep*>(stateVector)){
169  TMatrixT<Double_t> HMatrix(2,4);
170 
171  HMatrix[0][0] = 1.;
172  HMatrix[0][1] = 0.;
173  HMatrix[0][2] = 0.;
174  HMatrix[0][3] = 0.;
175 
176 
177  HMatrix[1][0] = 0.;
178  HMatrix[1][1] = 1.;
179  HMatrix[1][2] = 0.;
180  HMatrix[1][3] = 0.;
181  return HMatrix;
182  }
183 
184  else {
185  std::cerr << "PointHit can only handle state"
186  << " vectors of type genf::RKTrackRep or genf::SlTrackRep -> throw" << std::endl;
187  throw;
188  }
189 
190 }
TMatrixT< Double_t > genf::PointHit::getHMatrix ( const GFAbsTrackRep *  stateVector,
const Double_t &  betac,
const Double_t &  dist 
)
virtual

Implements genf::GFAbsRecoHit.

Definition at line 65 of file PointHit.cxx.

66 {
67  if (dynamic_cast<const genf::RKTrackRep*>(stateVector) != nullptr){
68  //I know, since this is the same everytime, it could be done in the
69  //the constructor, but I do it here anyway, to make clear that in the
70  //case of several track-reps per hit, it would have to be done here
71  // fHMatrix.ResizeTo(NparHitRep,5);
72 
73 
74  // TMatrixT<Double_t> HMatrix(2,6);
75  // WTF? Making this 2,5 not 2,6. EC, 3-Jan-2011.
76  // TMatrixT<Double_t> HMatrix(2,5);
77  TMatrixT<Double_t> HMatrix(5,5);
78 
79  Double_t C = 0.0136/betac*sqrt(dist/14.0)*(1+0.038*log(dist/14.0)); // EC, 2-Jan-2012.
80 
81  HMatrix[0][0] = C;
82  HMatrix[0][1] = 0.;
83  HMatrix[0][2] = 0.;
84  HMatrix[0][3] = 0.;
85  HMatrix[0][4] = 0.;
86 
87  HMatrix[1][0] = 0.;
88  HMatrix[1][1] = 1.;
89  HMatrix[1][2] = 0.;
90  HMatrix[1][3] = 0.;
91  HMatrix[1][4] = 0.;
92 
93  HMatrix[2][0] = 0.;
94  HMatrix[2][1] = 0.;
95  HMatrix[2][2] = 1.;
96  HMatrix[2][3] = 0.;
97  HMatrix[2][4] = 0.;
98 
99  HMatrix[3][0] = 0.;
100  HMatrix[3][1] = 0.;
101  HMatrix[3][2] = 0.;
102  HMatrix[3][3] = 1.;
103  HMatrix[3][4] = 0.;
104 
105  HMatrix[4][0] = 0.;
106  HMatrix[4][1] = 0.;
107  HMatrix[4][2] = 0.;
108  HMatrix[4][3] = 0.;
109  HMatrix[4][4] = 1.;
110 
111 
112  return HMatrix;
113  }
114  else if(dynamic_cast<const genf::SlTrackRep*>(stateVector)){
115  TMatrixT<Double_t> HMatrix(2,4);
116 
117  HMatrix[0][0] = 1.;
118  HMatrix[0][1] = 0.;
119  HMatrix[0][2] = 0.;
120  HMatrix[0][3] = 0.;
121 
122 
123  HMatrix[1][0] = 0.;
124  HMatrix[1][1] = 1.;
125  HMatrix[1][2] = 0.;
126  HMatrix[1][3] = 0.;
127  return HMatrix;
128  }
129 
130  else {
131  std::cerr << "PointHit can only handle state"
132  << " vectors of type genf::RKTrackRep or genf::SlTrackRep -> throw" << std::endl;
133  throw;
134  }
135 
136 }
int genf::GFAbsRecoHit::getNparHit ( )
inlineinherited

Definition at line 238 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::fNparHit.

238 {return fNparHit;}
template<class HitPolicy >
const std::string& genf::GFRecoHitIfc< HitPolicy >::getPolicyName ( )
inlinevirtualinherited

Reimplemented from genf::GFAbsRecoHit.

Definition at line 102 of file GFRecoHitIfc.h.

102 {return fPolicy.getName();}
TMatrixT<Double_t> genf::GFAbsRecoHit::getRawHitCoord ( ) const
inlineinherited

Get raw hit coordinates.

Definition at line 182 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::GFWirepointHitPolicy::detPlane(), genf::GFWireHitPolicy::detPlane(), genf::GFSpacepointHitPolicy::detPlane(), genf::GFWirepointHitPolicy::hitCoord(), genf::GFWireHitPolicy::hitCoord(), genf::GFSpacepointHitPolicy::hitCoord(), genf::GFPlanarHitPolicy::hitCoord(), and genf::GFKalman::processHit().

182 {return fHitCoord;}
genf::GFAbsRecoHit::fHitCoord
TMatrixT< Double_t > fHitCoord
Vector of raw coordinates of hit.
Definition: GFAbsRecoHit.h:80
TMatrixT<Double_t> genf::GFAbsRecoHit::getRawHitCov ( ) const
inlineinherited

Get raw hit covariances.

Definition at line 177 of file GFAbsRecoHit.h.

References genf::GFAbsRecoHit::fHitCov.

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

177 {return fHitCov;}
genf::GFAbsRecoHit::fHitCov
TMatrixT< Double_t > fHitCov
Covariance of raw hit coordinates.
Definition: GFAbsRecoHit.h:83
virtual void genf::GFAbsRecoHit::Print ( std::ostream &  out = std::cout) const
inlinevirtualinherited

Print raw hit coordinates.

Definition at line 233 of file GFAbsRecoHit.h.

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

234  { PrintROOTobject(out, fHitCoord); }
genf::GFAbsRecoHit::fHitCoord
TMatrixT< Double_t > fHitCoord
Vector of raw coordinates of hit.
Definition: GFAbsRecoHit.h:80
genf::PrintROOTobject
void PrintROOTobject(std::ostream &, const ROOTOBJ &)
Small utility functions which print some ROOT objects into an output stream.
Definition: GFException.h:129
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
stateVectorpointer to track representation - used to synchronize with the track repesentation
stateparameter vector of the track representation
See also
setHMatrix
getGFDetPlane

Definition at line 147 of file GFAbsRecoHit.h.

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

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

149  {
150  std::cout << "GFAbsRecoHit::residualVector(3args) Not correctly Using theta -- multiple scattering -- information !!! Fix this if you really want to use getChi2Hit" << std::endl;
151  TMatrixT<Double_t> H = getHMatrix(stateVector);
152  return ( getHitCoord(d) - (H*state ));
153  }
genf::GFAbsRecoHit::getHitCoord
virtual TMatrixT< Double_t > getHitCoord(const GFDetPlane &, const GFDetPlane &)=0
Get hit coordinates in a specific detector plane.
genf::GFAbsRecoHit::getHMatrix
virtual TMatrixT< Double_t > getHMatrix(const GFAbsTrackRep *stateVector)=0
Get transformation matrix. Transformation between hit coordinates and track representation coordinate...
d
Float_t d
Definition: plot.C:237
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 155 of file GFAbsRecoHit.h.

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

161  {
162  Double_t dist = (d.getO()-dPrev.getO()).Mag();
163  // Double_t mass = 0.104; // close enough for muons, pions, I think.
164  Double_t mom = fabs(1.0/state[0][0]);
165  Double_t beta = mom/sqrt(mass*mass+mom*mom);
166  if (std::isnan(dist) || dist<0.2) dist=0.2; // don't allow 0s here.
167  if (std::isnan(beta) || beta<0.04) beta=0.04;
168 
169  TMatrixT<Double_t> H = getHMatrix(stateVector,beta,dist);
170  return ( getHitCoord(d,dPrev) - (H*state ));
171  }
genf::GFAbsRecoHit::getHitCoord
virtual TMatrixT< Double_t > getHitCoord(const GFDetPlane &, const GFDetPlane &)=0
Get hit coordinates in a specific detector plane.
genf::GFAbsRecoHit::getHMatrix
virtual TMatrixT< Double_t > getHMatrix(const GFAbsTrackRep *stateVector)=0
Get transformation matrix. Transformation between hit coordinates and track representation coordinate...
beta
Double_t beta
Definition: TG43_relative_dose.C:15
d
Float_t d
Definition: plot.C:237

Member Data Documentation

TMatrixT<Double_t> genf::GFAbsRecoHit::fHitCoord
protectedinherited

Vector of raw coordinates of hit.

Definition at line 80 of file GFAbsRecoHit.h.

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

TMatrixT<Double_t> genf::GFAbsRecoHit::fHitCov
protectedinherited

Covariance of raw hit coordinates.

Definition at line 83 of file GFAbsRecoHit.h.

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

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

Definition at line 64 of file GFRecoHitIfc.h.

const int genf::PointHit::NparHitRep = 3
staticprivate

Definition at line 37 of file PointHit.h.

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