AlfaTrackCand Class Reference

#include <AlfaLocalHits.h>

Collaboration diagram for AlfaTrackCand:

Public Member Functions
	AlfaTrackCand (AlfaLocalHits *hits)
int	IsLeftTrack ()
int	IsRightTrack ()
int	IsLowerArmTrack ()
int	IsUpperArmTrack ()
int	IsValidTrack ()
int	IsLeftOrRightTrack ()
int	IsLeftAndRightTrack ()
void	CalcTrack ()
int	GetArmNum ()
float	GetX ()
float	GetY ()
float	GetZ ()
float	GetXslope ()
float	GetYslope ()
AlfaLocalHit *	GetNearLocalHit ()
AlfaLocalHit *	GetFarLocalHit ()
const ALFA_LocRecCorrEvent *	GetNearLocRecCorr () const
const ALFA_LocRecCorrEvent *	GetFarLocRecCorr () const
void	CalcImpactPoints ()
HepGeom::Point3D< double > *	GetNearImpactPoint ()
HepGeom::Point3D< double > *	GetFarImpactPoint ()
void	Dump () const

Private Attributes
int	m_arm
float	m_x
float	m_y
float	m_z
float	m_xslope
float	m_yslope
AlfaLocalHits *	m_trackcandhits
AlfaLocalHit *	m_nearlocalhit
AlfaLocalHit *	m_farlocalhit
HepGeom::Point3D< double >	m_nearimpactpoint
HepGeom::Point3D< double >	m_farimpactpoint

Detailed Description

Definition at line 90 of file AlfaLocalHits.h.

Constructor & Destructor Documentation

AlfaTrackCand()

AlfaTrackCand::AlfaTrackCand

(

AlfaLocalHits *

hits

)

Definition at line 272 of file AlfaLocalHits.cxx.

                                                {
  // ... initialize
  m_arm = -1.;
  m_x = 1.e10;
  m_y = 1.e10;
  m_z = 1.e10;
  m_xslope = 1.e10;
  m_yslope = 1.e10;
  m_nearlocalhit = nullptr;
  m_farlocalhit = nullptr;
 
  // ... asign hits that create the track
  m_trackcandhits = hits;
 
  // ... calculate track kinematics and project track back to "pot planes"
  if(AlfaTrackCand::IsLeftOrRightTrack()) {
    AlfaTrackCand::CalcTrack();
    if(m_nearlocalhit && m_farlocalhit) AlfaTrackCand::CalcImpactPoints();
  }else if(AlfaTrackCand::IsLeftAndRightTrack()){
    cout << "Left and right side ALFA tracks at one time not supported in AlfaTrackCand class" << endl;
    cout << "Consider using another class for them or change path pattern." << endl;
  }
}

Member Function Documentation

CalcImpactPoints()

void AlfaTrackCand::CalcImpactPoints

(

)

Definition at line 429 of file AlfaLocalHits.cxx.

                                     {
  // ... distance from intercept to xy plane at pot z is 
  //     half of the distance between the pots
  // ... the direction vector starting at x,y needs to be
  //     scaled to touch the plane at pot's z
  double z_nearpot            = m_nearlocalhit->GetZ();
  double scalefactortonearpot = z_nearpot - m_z;
  double ximpact_nearpot      = m_x + m_xslope * scalefactortonearpot;
  double yimpact_nearpot      = m_y + m_yslope * scalefactortonearpot;
  double zimpact_nearpot      = z_nearpot;
  m_nearimpactpoint.setX(ximpact_nearpot);
  m_nearimpactpoint.setY(yimpact_nearpot);
  m_nearimpactpoint.setZ(zimpact_nearpot);
 
  double z_farpot            = m_farlocalhit->GetZ();
  double scalefactortofarpot = z_farpot - m_z;
  double ximpact_farpot      = m_x + m_xslope * scalefactortofarpot;
  double yimpact_farpot      = m_y + m_yslope * scalefactortofarpot;
  double zimpact_farpot      = z_farpot;
  m_farimpactpoint.setX(ximpact_farpot);
  m_farimpactpoint.setY(yimpact_farpot);
  m_farimpactpoint.setZ(zimpact_farpot);
  
}

CalcTrack()

void AlfaTrackCand::CalcTrack

(

)

Definition at line 369 of file AlfaLocalHits.cxx.

                             {
  float xM = 1.e10;
  float xm = 1.e10;
  float yM = 1.e10;
  float ym = 1.e10;
  float zM = 1.e10;
  float zm = 1.e10;
  for(int i = 0; i < m_trackcandhits->GetNhits(); i++){
    if(AlfaTrackCand::IsLeftTrack()){
      if(m_trackcandhits->GetHit(i)->GetPotName().Contains("B7")){
        xM = m_trackcandhits->GetHit(i)->GetX();
        yM = m_trackcandhits->GetHit(i)->GetY();
        zM = m_trackcandhits->GetHit(i)->GetZ();
        m_farlocalhit = m_trackcandhits->GetHit(i);
      }else if(m_trackcandhits->GetHit(i)->GetPotName().Contains("A7")){
        xm = m_trackcandhits->GetHit(i)->GetX();
        ym = m_trackcandhits->GetHit(i)->GetY();
        zm = m_trackcandhits->GetHit(i)->GetZ();
        m_nearlocalhit = m_trackcandhits->GetHit(i);
      }
      if(AlfaTrackCand::IsLowerArmTrack()){
        m_arm = 2;
      }else if(AlfaTrackCand::IsUpperArmTrack()){
        m_arm = 1;
      }else{
        throw std::runtime_error("AlfaTrackCand::CalcTrack() ... track is in left but unknown upper/lower arm");
      }
    }else if(AlfaTrackCand::IsRightTrack()){
      if(m_trackcandhits->GetHit(i)->GetPotName().Contains("B7")){
        xm = m_trackcandhits->GetHit(i)->GetX();
        ym = m_trackcandhits->GetHit(i)->GetY();
        zm = m_trackcandhits->GetHit(i)->GetZ();
        m_nearlocalhit = m_trackcandhits->GetHit(i);
      }else if(m_trackcandhits->GetHit(i)->GetPotName().Contains("A7")){
        xM = m_trackcandhits->GetHit(i)->GetX();
        yM = m_trackcandhits->GetHit(i)->GetY();
        zM = m_trackcandhits->GetHit(i)->GetZ();
        m_farlocalhit = m_trackcandhits->GetHit(i);
      }
      if(AlfaTrackCand::IsLowerArmTrack()){
        m_arm = 4;
      }else if(AlfaTrackCand::IsUpperArmTrack()){
        m_arm = 3;
      }else{
        std::runtime_error("AlfaTrackCand::CalcTrack() ... track is in right but unknown upper/lower arm");
      }
    }else{
      std::runtime_error("AlfaTrackCand::CalcTrack() ... track must be left or right");
    }
  }
 
  m_x = (xM + xm) / 2.;
  m_y = (yM + ym) / 2.;
  m_z = (zM + zm) / 2.;
  m_xslope = (xM - xm) / (zM - zm);
  m_yslope = (yM - ym) / (zM - zm);
  
}

Dump()

void AlfaTrackCand::Dump

(

)

const

Definition at line 455 of file AlfaLocalHits.cxx.

                               {
  std::ios oldState(nullptr);
  oldState.copyfmt(std::cout);
  cout << "Dumping AlfaTrackCand:" << endl;
  cout << " arm = "  << std::setprecision(8) << m_arm
       << " x = "  << std::setprecision(8) << m_x
       << " y = "  << std::setprecision(8) << m_y
       << " z = "  << std::setprecision(8) << m_z
       << " x'= "  << std::setprecision(8) << m_xslope
       << " y' = " << std::setprecision(8) << m_yslope
       << endl;
    std::cout.copyfmt(oldState);
       
}

GetArmNum()

int AlfaTrackCand::GetArmNum ( )

inline

Definition at line 110 of file AlfaLocalHits.h.

{return m_arm;};

GetFarImpactPoint()

HepGeom::Point3D<double>* AlfaTrackCand::GetFarImpactPoint ( )

inline

Definition at line 122 of file AlfaLocalHits.h.

{return &m_farimpactpoint;};

GetFarLocalHit()

AlfaLocalHit* AlfaTrackCand::GetFarLocalHit ( )

inline

Definition at line 117 of file AlfaLocalHits.h.

{return m_farlocalhit; };

GetFarLocRecCorr()

const ALFA_LocRecCorrEvent* AlfaTrackCand::GetFarLocRecCorr ( ) const

inline

Definition at line 119 of file AlfaLocalHits.h.

{return m_farlocalhit->GetLocRecCorr();}

GetNearImpactPoint()

HepGeom::Point3D<double>* AlfaTrackCand::GetNearImpactPoint ( )

inline

Definition at line 121 of file AlfaLocalHits.h.

{return &m_nearimpactpoint;};

GetNearLocalHit()

AlfaLocalHit* AlfaTrackCand::GetNearLocalHit ( )

inline

Definition at line 116 of file AlfaLocalHits.h.

{return m_nearlocalhit;};

GetNearLocRecCorr()

const ALFA_LocRecCorrEvent* AlfaTrackCand::GetNearLocRecCorr ( ) const

inline

Definition at line 118 of file AlfaLocalHits.h.

{return m_nearlocalhit->GetLocRecCorr();};

GetX()

float AlfaTrackCand::GetX ( )

inline

Definition at line 111 of file AlfaLocalHits.h.

{return m_x;};

GetXslope()

float AlfaTrackCand::GetXslope ( )

inline

Definition at line 114 of file AlfaLocalHits.h.

{return m_xslope;};

GetY()

float AlfaTrackCand::GetY ( )

inline

Definition at line 112 of file AlfaLocalHits.h.

{return m_y;};

GetYslope()

float AlfaTrackCand::GetYslope ( )

inline

Definition at line 115 of file AlfaLocalHits.h.

{return m_yslope;};

GetZ()

float AlfaTrackCand::GetZ ( )

inline

Definition at line 113 of file AlfaLocalHits.h.

{return m_z;};

IsLeftAndRightTrack()

int AlfaTrackCand::IsLeftAndRightTrack

(

)

Definition at line 361 of file AlfaLocalHits.cxx.

                                      {
  if(AlfaTrackCand::IsLeftTrack() && AlfaTrackCand::IsRightTrack()){
    return 1;
  }else{
    return 0;
  }
}

IsLeftOrRightTrack()

int AlfaTrackCand::IsLeftOrRightTrack

(

)

Definition at line 353 of file AlfaLocalHits.cxx.

                                     {
  if(AlfaTrackCand::IsLeftTrack() || AlfaTrackCand::IsRightTrack()){
    return 1;
  }else{
    return 0;
  }
}

IsLeftTrack()

int AlfaTrackCand::IsLeftTrack

(

)

Definition at line 296 of file AlfaLocalHits.cxx.

                              {
  if((m_trackcandhits->GetPathPattern().Contains("B7L1U")
  &&  m_trackcandhits->GetPathPattern().Contains("A7L1U"))
  || (m_trackcandhits->GetPathPattern().Contains("B7L1L")
  &&  m_trackcandhits->GetPathPattern().Contains("A7L1L"))
  ){
    MsgStream LogStream(Athena::getMessageSvc(), "ALFA_TrackCand::IsLeftTrack");
    LogStream << MSG::DEBUG << "Track candidate is left" << endmsg;
    return 1;
  }else{
    return 0;
  }
}

IsLowerArmTrack()

int AlfaTrackCand::IsLowerArmTrack

(

)

Definition at line 324 of file AlfaLocalHits.cxx.

                                  {
  if((m_trackcandhits->GetPathPattern().Contains("B7L1L")
  &&  m_trackcandhits->GetPathPattern().Contains("A7L1L"))
  || (m_trackcandhits->GetPathPattern().Contains("B7R1L")
  &&  m_trackcandhits->GetPathPattern().Contains("A7R1L"))
  ){
    MsgStream LogStream(Athena::getMessageSvc(), "ALFA_TrackCand::IsLowerArmTrack");
    LogStream << MSG::DEBUG << "Track candidate is in the lower arm" << endmsg;
    return 1;
  }else{
    return 0;
  }
}

IsRightTrack()

int AlfaTrackCand::IsRightTrack

(

)

Definition at line 310 of file AlfaLocalHits.cxx.

                               {
  if((m_trackcandhits->GetPathPattern().Contains("B7R1U")
  &&  m_trackcandhits->GetPathPattern().Contains("A7R1U"))
  || (m_trackcandhits->GetPathPattern().Contains("B7R1L")
  &&  m_trackcandhits->GetPathPattern().Contains("A7R1L"))
  ){
    MsgStream LogStream(Athena::getMessageSvc(), "ALFA_TrackCand::IsRightTrack");
    LogStream << MSG::DEBUG << "Track candidate is right" << endmsg;
    return 1;
  }else{
    return 0;
  }
}

IsUpperArmTrack()

int AlfaTrackCand::IsUpperArmTrack

(

)

Definition at line 338 of file AlfaLocalHits.cxx.

                                  {
  if((m_trackcandhits->GetPathPattern().Contains("B7L1U")
  &&  m_trackcandhits->GetPathPattern().Contains("A7L1U"))
  || (m_trackcandhits->GetPathPattern().Contains("B7R1U")
  &&  m_trackcandhits->GetPathPattern().Contains("A7R1U"))
  ){
    MsgStream LogStream(Athena::getMessageSvc(), "ALFA_TrackCand::IsUpperArmTrack");
    LogStream << MSG::DEBUG << "Track candidate is in the upper arm" << endmsg;
    return 1;
  }else{
    return 0;
  }
}

IsValidTrack()

int AlfaTrackCand::IsValidTrack ( )

inline

Definition at line 106 of file AlfaLocalHits.h.

{return (m_nearlocalhit && m_farlocalhit);};

Member Data Documentation

m_arm

int AlfaTrackCand::m_arm

private

Definition at line 92 of file AlfaLocalHits.h.

m_farimpactpoint

HepGeom::Point3D<double> AlfaTrackCand::m_farimpactpoint

private

Definition at line 99 of file AlfaLocalHits.h.

m_farlocalhit

AlfaLocalHit* AlfaTrackCand::m_farlocalhit

private

Definition at line 97 of file AlfaLocalHits.h.

m_nearimpactpoint

HepGeom::Point3D<double> AlfaTrackCand::m_nearimpactpoint

private

Definition at line 98 of file AlfaLocalHits.h.

m_nearlocalhit

AlfaLocalHit* AlfaTrackCand::m_nearlocalhit

private

Definition at line 96 of file AlfaLocalHits.h.

m_trackcandhits

AlfaLocalHits* AlfaTrackCand::m_trackcandhits

private

Definition at line 95 of file AlfaLocalHits.h.

m_x

float AlfaTrackCand::m_x

private

Definition at line 93 of file AlfaLocalHits.h.

m_xslope

float AlfaTrackCand::m_xslope

private

Definition at line 94 of file AlfaLocalHits.h.

m_y

float AlfaTrackCand::m_y

private

Definition at line 93 of file AlfaLocalHits.h.

m_yslope

float AlfaTrackCand::m_yslope

private

Definition at line 94 of file AlfaLocalHits.h.

m_z

float AlfaTrackCand::m_z

private

Definition at line 93 of file AlfaLocalHits.h.

---

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

• AlfaLocalHits.h
• AlfaLocalHits.cxx