JFIT::JModel< JLine1Z > Struct Reference

Template specialisation of class JModel to match hit with muon trajectory along z-axis. More...

#include <JModel.hh>

Inheritance diagram for JFIT::JModel< JLine1Z >:

Public Types
typedef double JLine1Z::*	parameter_type

Public Member Functions
	JModel (const JLine1Z &tz, const double Rmax_m, const JTimeRange &compare, const JZRange &z_m=JZRange())
	Constructor.
template<class JHit_t >
bool	operator() (const JHit_t &hit) const
	Test compatibility of given hit with track.
void	move (const double step, const double velocity)
	Move vertex along this line with given velocity.
void	setZ (const double z, const double velocity)
	Set z-position of vertex.
double	getDistanceSquared (const JVector3D &pos) const
	Get distance squared.
double	getDistance (const JVector3D &pos) const
	Get distance.
double	getT (const JVector3D &pos) const
	Get arrival time of Cherenkov light at given position.
double	getZ (const JPosition3D &pos) const
	Get point of emission of Cherenkov light along muon path.
JVersor3D	getDirection (const JVector3D &pos) const
	Get photon direction of Cherenkov light on PMT.
double	getDot (const JAxis3D &axis) const
	Get cosine angle of impact of Cherenkov light on PMT.

Static Public Member Functions
static parameter_type	pX ()
static parameter_type	pY ()
static parameter_type	pT ()

Protected Attributes
double	Rmax_m
JTimeRange	compare
JZRange	z_m

Detailed Description

Template specialisation of class JModel to match hit with muon trajectory along z-axis.

Definition at line 34 of file JFit/JModel.hh.

Member Typedef Documentation

parameter_type

typedef double JLine1Z::* JFIT::JLine1Z::parameter_type

inherited

Definition at line 178 of file JLine1Z.hh.

Constructor & Destructor Documentation

JModel()

JFIT::JModel< JLine1Z >::JModel ( const JLine1Z & tz, const double Rmax_m, const JTimeRange & compare, const JZRange & z_m = JZRange() )

inline

Constructor.

Parameters

tz	muon along z-axis
Rmax_m	maximal distance of approach [m]
compare	time window [ns]
z_m	z-range of muon [m]

Definition at line 45 of file JFit/JModel.hh.

                                              :
      JLine1Z(tz)
    {
      this->Rmax_m  = Rmax_m;
      this->compare = compare;
      this->z_m     = z_m;
    }

Member Function Documentation

operator()()

template<class JHit_t >

bool JFIT::JModel< JLine1Z >::operator() ( const JHit_t & hit ) const

inline

Test compatibility of given hit with track.

Parameters

hit

hit

Returns

true if compatible; else false

Definition at line 64 of file JFit/JModel.hh.

    {
      using namespace std;
      using namespace JPP;
 
      if (this->getDistance(hit) <= Rmax_m) {
        if (hit.getZ()                                         - this->getZ()  >=  z_m.getLowerLimit()   &&
            hit.getZ() - this->getDistance(hit)/getTanThetaC() - this->getZ()  <=  z_m.getUpperLimit()) {
          return compare(hit.getT() - this->getT(hit));
        } else {
          return false;
        }
      }  
      return false;
    }

move()

void JFIT::JLine1Z::move ( const double step, const double velocity )

inlineinherited

Move vertex along this line with given velocity.

Parameters

step	step
velocity	velocity

Definition at line 62 of file JLine1Z.hh.

    {
      __z += step;
      __t += step / velocity;
    }

setZ()

void JFIT::JLine1Z::setZ ( const double z, const double velocity )

inlineinherited

Set z-position of vertex.

Parameters

z	z-position
velocity	velocity

Definition at line 75 of file JLine1Z.hh.

    {
      move(z - getZ(), velocity);
    }

getDistanceSquared()

double JFIT::JLine1Z::getDistanceSquared ( const JVector3D & pos ) const

inlineinherited

Get distance squared.

Parameters

pos

position

Returns

square of distance

Definition at line 87 of file JLine1Z.hh.

    {
      const double dx = pos.getX() - this->getX();
      const double dy = pos.getY() - this->getY();
 
      return dx*dx + dy*dy;
    }

getDistance()

double JFIT::JLine1Z::getDistance ( const JVector3D & pos ) const

inlineinherited

Get distance.

Parameters

pos

position

Returns

distance

Definition at line 102 of file JLine1Z.hh.

    {
      return sqrt(this->getDistanceSquared(pos));
    }

getT()

double JFIT::JLine1Z::getT ( const JVector3D & pos ) const

inlineinherited

Get arrival time of Cherenkov light at given position.

Parameters

pos	position [m]

Returns

time [ns]

Definition at line 114 of file JLine1Z.hh.

    {
      using namespace JPP;
 
      const double dx = pos.getX() - this->getX();
      const double dy = pos.getY() - this->getY();
      const double dz = pos.getZ() - this->getZ();
 
      const double R  = sqrt(dx*dx + dy*dy);
      
      return this->getT() + (dz + R * getKappaC()) * getInverseSpeedOfLight();
    }

getZ()

double JFIT::JLine1Z::getZ ( const JPosition3D & pos ) const

inlineinherited

Get point of emission of Cherenkov light along muon path.

Parameters

pos

position

Returns

position along muon path

Definition at line 134 of file JLine1Z.hh.

    {
      using namespace JPP;
 
      return pos.getZ()  -  this->getDistance(pos) / getTanThetaC();
    }

getDirection()

JVersor3D JFIT::JLine1Z::getDirection ( const JVector3D & pos ) const

inlineinherited

Get photon direction of Cherenkov light on PMT.

Parameters

pos	PMT position

Returns

direction

Definition at line 148 of file JLine1Z.hh.

    {
      using namespace JPP;
 
      double dx = pos.getX() - this->getX();
      double dy = pos.getY() - this->getY();
 
      const double R = sqrt(dx*dx + dy*dy);
 
      dx *= getSinThetaC() / R;
      dy *= getSinThetaC() / R;
 
      const double dz = getCosThetaC();
      
      return JVersor3D(dx,dy,dz);
    }

getDot()

double JFIT::JLine1Z::getDot ( const JAxis3D & axis ) const

inlineinherited

Get cosine angle of impact of Cherenkov light on PMT.

Parameters

axis

PMT axis

Returns

cosine angle of impact

Definition at line 172 of file JLine1Z.hh.

    {
      return getDirection(axis.getPosition()).getDot(axis.getDirection());
    }

pX()

static parameter_type JFIT::JLine1Z::pX ( )

inlinestaticinherited

Definition at line 180 of file JLine1Z.hh.

{ return &JLine1Z::__x; }

pY()

static parameter_type JFIT::JLine1Z::pY ( )

inlinestaticinherited

Definition at line 181 of file JLine1Z.hh.

{ return &JLine1Z::__y; }

pT()

static parameter_type JFIT::JLine1Z::pT ( )

inlinestaticinherited

Definition at line 182 of file JLine1Z.hh.

{ return &JLine1Z::__t; }

Member Data Documentation

Rmax_m

double JFIT::JModel< JLine1Z >::Rmax_m

protected

Definition at line 81 of file JFit/JModel.hh.

compare

JTimeRange JFIT::JModel< JLine1Z >::compare

protected

Definition at line 82 of file JFit/JModel.hh.

z_m

JZRange JFIT::JModel< JLine1Z >::z_m

protected

Definition at line 83 of file JFit/JModel.hh.

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

• JFit/JModel.hh