JFIT::JLine1Z Class Reference

Data structure for fit of straight line paralel to z-axis. More...

#include <JLine1Z.hh>

Inheritance diagram for JFIT::JLine1Z:

Public Types
typedef double JLine1Z::*	parameter_type

Public Member Functions
	JLine1Z ()
	Default constructor.
	JLine1Z (const JVector3D &pos, const double t)
	Constructor.
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 ()

Detailed Description

Data structure for fit of straight line paralel to z-axis.

Definition at line 27 of file JLine1Z.hh.

Member Typedef Documentation

parameter_type

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

Definition at line 178 of file JLine1Z.hh.

Constructor & Destructor Documentation

JLine1Z() [1/2]

JFIT::JLine1Z::JLine1Z ( )

inline

Default constructor.

Definition at line 39 of file JLine1Z.hh.

              :
      JVertex3D()
    {}

JLine1Z() [2/2]

JFIT::JLine1Z::JLine1Z ( const JVector3D & pos, const double t )

inline

Constructor.

Parameters

pos	position
t	time at position

Definition at line 50 of file JLine1Z.hh.

                                :
      JVertex3D(pos, t)
    {}

Member Function Documentation

move()

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

inline

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 )

inline

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

inline

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

inline

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

inline

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

inline

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

inline

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

inline

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 ( )

inlinestatic

Definition at line 180 of file JLine1Z.hh.

{ return &JLine1Z::__x; }

pY()

static parameter_type JFIT::JLine1Z::pY ( )

inlinestatic

Definition at line 181 of file JLine1Z.hh.

{ return &JLine1Z::__y; }

pT()

static parameter_type JFIT::JLine1Z::pT ( )

inlinestatic

Definition at line 182 of file JLine1Z.hh.

{ return &JLine1Z::__t; }

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

• JLine1Z.hh