genfit::DetPlane Class Reference

Detector plane. More...

#include <DetPlane.h>

Inheritance diagram for genfit::DetPlane:

Public Member Functions
	DetPlane (AbsFinitePlane *finite=nullptr)
	DetPlane (const TVector3 &o, const TVector3 &u, const TVector3 &v, AbsFinitePlane *finite=nullptr)
	DetPlane (const TVector3 &o, const TVector3 &n, AbsFinitePlane *finite=nullptr)
virtual	~DetPlane ()
	DetPlane (const DetPlane &)
DetPlane &	operator= (DetPlane)
void	swap (DetPlane &other)
const TVector3 &	getO () const
const TVector3 &	getU () const
const TVector3 &	getV () const
void	set (const TVector3 &o, const TVector3 &u, const TVector3 &v)
void	setO (const TVector3 &o)
void	setO (double, double, double)
void	setU (const TVector3 &u)
void	setU (double, double, double)
void	setV (const TVector3 &v)
void	setV (double, double, double)
void	setUV (const TVector3 &u, const TVector3 &v)
void	setON (const TVector3 &o, const TVector3 &n)
void	setFinitePlane (AbsFinitePlane *finite)
TVector3	getNormal () const
void	setNormal (const TVector3 &n)
void	setNormal (double, double, double)
void	setNormal (const double &theta, const double &phi)
TVector2	project (const TVector3 &x) const
	projecting a direction onto the plane: More...
TVector2	LabToPlane (const TVector3 &x) const
	transform from Lab system into plane More...
TVector3	toLab (const TVector2 &x) const
	transform from plane coordinates to lab system More...
TVector3	dist (const TVector3 &point) const
TVector2	straightLineToPlane (const TVector3 &point, const TVector3 &dir) const
	gives u,v coordinates of the intersection point of a straight line with plane More...
void	straightLineToPlane (const double &posX, const double &posY, const double &posZ, const double &dirX, const double &dirY, const double &dirZ, double &u, double &v) const
	gives u,v coordinates of the intersection point of a straight line with plane More...
void	Print (const Option_t *="") const
double	distance (const TVector3 &point) const
	absolute distance from a point to the plane More...
double	distance (double, double, double) const
bool	isInActive (const TVector3 &point, const TVector3 &dir) const
	intersect in the active area? C.f. AbsFinitePlane More...
bool	isInActive (const double &posX, const double &posY, const double &posZ, const double &dirX, const double &dirY, const double &dirZ) const
	intersect in the active area? C.f. AbsFinitePlane More...
bool	isInActive (double u, double v) const
	isInActive methods refer to finite plane. C.f. AbsFinitePlane More...
bool	isInActive (const TVector2 &v) const
	isInActive methods refer to finite plane. C.f. AbsFinitePlane More...
bool	isFinite () const
void	rotate (double angle)
	rotate u and v around normal. Angle is in rad. More for debugging than for actual use. More...
void	reset ()
	delete finitePlane_ and set O, U, V to default values More...

Friends
bool	operator== (const DetPlane &lhs, const DetPlane &rhs)
	Checks equality of planes by comparing the 9 double values that define them. More...
bool	operator!= (const DetPlane &lhs, const DetPlane &rhs)
	returns NOT == More...

Detailed Description

Detector plane.

A detector plane is the principle object to define coordinate systems for track fitting in genfit. Since a particle trajectory is a one-dimensional object (regardless of any specific parameterization) positions with respect to the track are always measured in a plane.

Which plane is chosen depends on the type of detector. Fixed plane detectors have their detector plane defined by their mechanical setup. While wire chambers or time projection chambers might want to define a detector plane more flexibly.

This class parameterizes a plane in terms of an origin vector o and two plane-spanning directions u and v.

Definition at line 60 of file DetPlane.h.

Constructor & Destructor Documentation

DetPlane() [1/4]

genfit::DetPlane::DetPlane

(

AbsFinitePlane *

finite = nullptr

)

DetPlane() [2/4]

genfit::DetPlane::DetPlane	(	const TVector3 &	o,
		const TVector3 &	u,
		const TVector3 &	v,
		AbsFinitePlane *	finite = nullptr
	)

DetPlane() [3/4]

genfit::DetPlane::DetPlane	(	const TVector3 &	o,
		const TVector3 &	n,
		AbsFinitePlane *	finite = nullptr
	)

~DetPlane()

virtual genfit::DetPlane::~DetPlane ( )

virtual

DetPlane() [4/4]

genfit::DetPlane::DetPlane

(

const DetPlane &

)

Member Function Documentation

dist()

TVector3 genfit::DetPlane::dist

(

const TVector3 &

point

)

const

Referenced by setFinitePlane().

distance() [1/2]

double genfit::DetPlane::distance

(

const TVector3 &

point

)

const

absolute distance from a point to the plane

Referenced by setFinitePlane().

distance() [2/2]

double genfit::DetPlane::distance	(	double	,
		double	,
		double
	)		const

getNormal()

TVector3 genfit::DetPlane::getNormal

(

)

const

Referenced by setFinitePlane().

getO()

const TVector3& genfit::DetPlane::getO ( ) const

inline

Definition at line 77 of file DetPlane.h.

{ return o_; }

getU()

const TVector3& genfit::DetPlane::getU ( ) const

inline

Definition at line 78 of file DetPlane.h.

{ return u_; }

getV()

const TVector3& genfit::DetPlane::getV ( ) const

inline

Definition at line 79 of file DetPlane.h.

References setO(), setON(), setU(), setUV(), setV(), and v.

{ return v_; }

isFinite()

bool genfit::DetPlane::isFinite ( ) const

inline

Definition at line 161 of file DetPlane.h.

References reset(), and rotate().

{ return (finitePlane_.get() != nullptr); }

isInActive() [1/4]

bool genfit::DetPlane::isInActive ( const TVector3 &  point, const TVector3 &  dir  ) const

inline

intersect in the active area? C.f. AbsFinitePlane

Definition at line 133 of file DetPlane.h.

References straightLineToPlane().

Referenced by isInActive().

  {
    if (finitePlane_.get() == nullptr)
      return true;
    return this->isInActive(this->straightLineToPlane(point, dir));
  }

isInActive() [2/4]

bool genfit::DetPlane::isInActive ( const double &  posX, const double &  posY, const double &  posZ, const double &  dirX, const double &  dirY, const double &  dirZ  ) const

inline

intersect in the active area? C.f. AbsFinitePlane

Definition at line 141 of file DetPlane.h.

References isInActive(), straightLineToPlane(), and v.

  {
    if (finitePlane_.get() == nullptr)
      return true;
    double u, v;
    this->straightLineToPlane(posX, posY, posZ, dirX, dirY, dirZ, u, v);
    return this->isInActive(u, v);
  }

isInActive() [3/4]

bool genfit::DetPlane::isInActive ( double  u, double  v  ) const

inline

isInActive methods refer to finite plane. C.f. AbsFinitePlane

Definition at line 151 of file DetPlane.h.

  {
    if (finitePlane_.get() == nullptr)
      return true;
    return finitePlane_->isInActive(u, v);
  }

isInActive() [4/4]

bool genfit::DetPlane::isInActive ( const TVector2 &  v ) const

inline

isInActive methods refer to finite plane. C.f. AbsFinitePlane

Definition at line 159 of file DetPlane.h.

References isInActive().

Referenced by isInActive().

{ return isInActive(v.X(), v.Y()); }

LabToPlane()

TVector2 genfit::DetPlane::LabToPlane

(

const TVector3 &

x

)

const

transform from Lab system into plane

Referenced by setFinitePlane().

operator=()

DetPlane& genfit::DetPlane::operator=

(

DetPlane

)

Print()

void genfit::DetPlane::Print

(

const Option_t *

= ""

)

const

Referenced by setFinitePlane().

project()

TVector2 genfit::DetPlane::project

(

const TVector3 &

x

)

const

projecting a direction onto the plane:

Referenced by setFinitePlane().

reset()

void genfit::DetPlane::reset

(

)

delete finitePlane_ and set O, U, V to default values

Referenced by isFinite().

rotate()

void genfit::DetPlane::rotate

(

double

angle

)

rotate u and v around normal. Angle is in rad. More for debugging than for actual use.

Referenced by isFinite().

set()

void genfit::DetPlane::set	(	const TVector3 &	o,
		const TVector3 &	u,
		const TVector3 &	v
	)

setFinitePlane()

void genfit::DetPlane::setFinitePlane ( AbsFinitePlane *  finite )

inline

Optionally, set the finite plane definition. This is most important for avoiding fake intersection points in fitting of curlers. This should be implemented for silicon detectors most importantly.

Definition at line 95 of file DetPlane.h.

References dist(), distance(), getNormal(), LabToPlane(), operator!=, operator==, Print(), project(), setNormal(), straightLineToPlane(), and toLab().

{ finitePlane_.reset(finite); }

setNormal() [1/3]

void genfit::DetPlane::setNormal

(

const TVector3 &

n

)

Referenced by setFinitePlane().

setNormal() [2/3]

void genfit::DetPlane::setNormal	(	double	,
		double	,
		double
	)

setNormal() [3/3]

void genfit::DetPlane::setNormal	(	const double &	theta,
		const double &	phi
	)

setO() [1/2]

void genfit::DetPlane::setO

(

const TVector3 &

o

)

Referenced by getV().

setO() [2/2]

void genfit::DetPlane::setO	(	double	,
		double	,
		double
	)

setON()

void genfit::DetPlane::setON	(	const TVector3 &	o,
		const TVector3 &	n
	)

Referenced by getV().

setU() [1/2]

void genfit::DetPlane::setU

(

const TVector3 &

u

)

Referenced by getV().

setU() [2/2]

void genfit::DetPlane::setU	(	double	,
		double	,
		double
	)

setUV()

void genfit::DetPlane::setUV	(	const TVector3 &	u,
		const TVector3 &	v
	)

Referenced by getV().

setV() [1/2]

void genfit::DetPlane::setV

(

const TVector3 &

v

)

Referenced by getV().

setV() [2/2]

void genfit::DetPlane::setV	(	double	,
		double	,
		double
	)

straightLineToPlane() [1/2]

TVector2 genfit::DetPlane::straightLineToPlane	(	const TVector3 &	point,
		const TVector3 &	dir
	)		const

gives u,v coordinates of the intersection point of a straight line with plane

Referenced by isInActive(), and setFinitePlane().

straightLineToPlane() [2/2]

void genfit::DetPlane::straightLineToPlane	(	const double &	posX,
		const double &	posY,
		const double &	posZ,
		const double &	dirX,
		const double &	dirY,
		const double &	dirZ,
		double &	u,
		double &	v
	)		const

gives u,v coordinates of the intersection point of a straight line with plane

swap()

void genfit::DetPlane::swap

(

DetPlane &

other

)

toLab()

TVector3 genfit::DetPlane::toLab

(

const TVector2 &

x

)

const

transform from plane coordinates to lab system

Referenced by setFinitePlane().

Friends And Related Function Documentation

operator!=

bool operator!= ( const DetPlane &  lhs, const DetPlane &  rhs  )

friend

returns NOT ==

Referenced by setFinitePlane().

operator==

bool operator== ( const DetPlane &  lhs, const DetPlane &  rhs  )

friend

Checks equality of planes by comparing the 9 double values that define them.

Referenced by setFinitePlane().

---

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

• DetPlane.h