ROOT   6.14/05 Reference Guide
ROOT::Math::CylindricalEta3D< T > Class Template Reference

### template<class T> class ROOT::Math::CylindricalEta3D< T >

Class describing a cylindrical coordinate system based on eta (pseudorapidity) instead of z.

Class describing a 3D Cylindrical Eta coordinate system (rho, eta, phi coordinates)

The base coordinates are rho (transverse component) , eta and phi Phi is restricted to be in the range [-PI,PI)

Definition at line 48 of file CylindricalEta3D.h.

typedef T Scalar

## Public Member Functions

CylindricalEta3D ()
Default constructor with rho=eta=phi=0. More...

CylindricalEta3D (Scalar rho, Scalar eta, Scalar phi)
Construct from rho eta and phi values. More...

template<class CoordSystem >
CylindricalEta3D (const CoordSystem &v)
Construct from any Vector or coordinate system implementing Rho(), Eta() and Phi() More...

CylindricalEta3D (const CylindricalEta3D &v)
copy constructor More...

Eta () const

void GetCoordinates (Scalar dest[]) const
get internal data into an array of 3 Scalar numbers More...

void GetCoordinates (Scalar &rho, Scalar &eta, Scalar &phi) const
get internal data into 3 Scalar numbers More...

Mag2 () const

void Negate ()
negate the vector More...

bool operator!= (const CylindricalEta3D &rhs) const

CylindricalEta3Doperator= (const CylindricalEta3D &v)
assignment operator More...

template<class CoordSystem >
CylindricalEta3Doperator= (const CoordSystem &c)
generic assignment operator from any coordinate system More...

bool operator== (const CylindricalEta3D &rhs) const
Exact component-by-component equality Note: Peculiar representaions of the zero vector such as (0,1,0) will not test as equal to one another. More...

Perp2 () const

Phi () const

R () const

Rho () const

void Scale (T a)
scale by a scalar quantity a – for cylindrical eta coords, as long as a >= 0, only rho changes! More...

void SetCoordinates (const Scalar src[])
Set internal data based on an array of 3 Scalar numbers. More...

void SetCoordinates (Scalar rho, Scalar eta, Scalar phi)
Set internal data based on 3 Scalar numbers. More...

void SetEta (T eta)
set the eta coordinate value keeping rho and phi constant More...

void SetPhi (T phi)
set the phi coordinate value keeping rho and eta constant More...

void SetRho (T rho)
set the rho coordinate value keeping eta and phi constant More...

void SetXYZ (Scalar x, Scalar y, Scalar z)
set all values using cartesian coordinates More...

Theta () const

X () const

x () const

Y () const

y () const

Z () const

z () const

void Restrict ()

## Static Private Member Functions

static Scalar pi ()

## Private Attributes

fEta

fPhi

fRho

#include <Math/GenVector/CylindricalEta3D.h>

## ◆ Scalar

template<class T>
 typedef T ROOT::Math::CylindricalEta3D< T >::Scalar

Definition at line 52 of file CylindricalEta3D.h.

## ◆ CylindricalEta3D() [1/4]

template<class T>
 ROOT::Math::CylindricalEta3D< T >::CylindricalEta3D ( )
inline

Default constructor with rho=eta=phi=0.

Definition at line 57 of file CylindricalEta3D.h.

## ◆ CylindricalEta3D() [2/4]

template<class T>
 ROOT::Math::CylindricalEta3D< T >::CylindricalEta3D ( Scalar rho, Scalar eta, Scalar phi )
inline

Construct from rho eta and phi values.

Definition at line 62 of file CylindricalEta3D.h.

## ◆ CylindricalEta3D() [3/4]

template<class T>
template<class CoordSystem >
 ROOT::Math::CylindricalEta3D< T >::CylindricalEta3D ( const CoordSystem & v )
inlineexplicit

Construct from any Vector or coordinate system implementing Rho(), Eta() and Phi()

Definition at line 70 of file CylindricalEta3D.h.

## ◆ CylindricalEta3D() [4/4]

template<class T>
 ROOT::Math::CylindricalEta3D< T >::CylindricalEta3D ( const CylindricalEta3D< T > & v )
inline

copy constructor

Definition at line 88 of file CylindricalEta3D.h.

## ◆ Eta()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Eta ( ) const
inline

Definition at line 136 of file CylindricalEta3D.h.

## ◆ GetCoordinates() [1/2]

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::GetCoordinates ( Scalar dest[] ) const
inline

get internal data into an array of 3 Scalar numbers

Definition at line 110 of file CylindricalEta3D.h.

## ◆ GetCoordinates() [2/2]

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::GetCoordinates ( Scalar & rho, Scalar & eta, Scalar & phi ) const
inline

get internal data into 3 Scalar numbers

Definition at line 122 of file CylindricalEta3D.h.

## ◆ Mag2()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Mag2 ( ) const
inline

Definition at line 149 of file CylindricalEta3D.h.

## ◆ Negate()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::Negate ( )
inline

negate the vector

Definition at line 211 of file CylindricalEta3D.h.

## ◆ operator!=()

template<class T>
 bool ROOT::Math::CylindricalEta3D< T >::operator!= ( const CylindricalEta3D< T > & rhs ) const
inline

Definition at line 236 of file CylindricalEta3D.h.

## ◆ operator=() [1/2]

template<class T>
 CylindricalEta3D& ROOT::Math::CylindricalEta3D< T >::operator= ( const CylindricalEta3D< T > & v )
inline

assignment operator

Definition at line 94 of file CylindricalEta3D.h.

## ◆ operator=() [2/2]

template<class T>
template<class CoordSystem >
 CylindricalEta3D& ROOT::Math::CylindricalEta3D< T >::operator= ( const CoordSystem & c )
inline

generic assignment operator from any coordinate system

Definition at line 221 of file CylindricalEta3D.h.

## ◆ operator==()

template<class T>
 bool ROOT::Math::CylindricalEta3D< T >::operator== ( const CylindricalEta3D< T > & rhs ) const
inline

Exact component-by-component equality Note: Peculiar representaions of the zero vector such as (0,1,0) will not test as equal to one another.

Definition at line 233 of file CylindricalEta3D.h.

## ◆ Perp2()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Perp2 ( ) const
inline

Definition at line 154 of file CylindricalEta3D.h.

## ◆ Phi()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Phi ( ) const
inline

Definition at line 137 of file CylindricalEta3D.h.

## ◆ pi()

template<class T>
 static Scalar ROOT::Math::CylindricalEta3D< T >::pi ( )
inlinestaticprivate

Definition at line 126 of file CylindricalEta3D.h.

## ◆ R()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::R ( ) const
inline

Definition at line 144 of file CylindricalEta3D.h.

## ◆ Restrict()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::Restrict ( )
inlineprivate

Definition at line 127 of file CylindricalEta3D.h.

## ◆ Rho()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Rho ( ) const
inline

Definition at line 135 of file CylindricalEta3D.h.

## ◆ Scale()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::Scale ( T a )
inline

scale by a scalar quantity a – for cylindrical eta coords, as long as a >= 0, only rho changes!

Definition at line 192 of file CylindricalEta3D.h.

## ◆ SetCoordinates() [1/2]

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::SetCoordinates ( const Scalar src[] )
inline

Set internal data based on an array of 3 Scalar numbers.

Definition at line 104 of file CylindricalEta3D.h.

## ◆ SetCoordinates() [2/2]

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::SetCoordinates ( Scalar rho, Scalar eta, Scalar phi )
inline

Set internal data based on 3 Scalar numbers.

Definition at line 116 of file CylindricalEta3D.h.

## ◆ SetEta()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::SetEta ( T eta )
inline

set the eta coordinate value keeping rho and phi constant

Definition at line 170 of file CylindricalEta3D.h.

## ◆ SetPhi()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::SetPhi ( T phi )
inline

set the phi coordinate value keeping rho and eta constant

Definition at line 177 of file CylindricalEta3D.h.

## ◆ SetRho()

template<class T>
 void ROOT::Math::CylindricalEta3D< T >::SetRho ( T rho )
inline

set the rho coordinate value keeping eta and phi constant

Definition at line 163 of file CylindricalEta3D.h.

## ◆ SetXYZ()

template<class T >
 void ROOT::Math::CylindricalEta3D< T >::SetXYZ ( Scalar x, Scalar y, Scalar z )

set all values using cartesian coordinates

Definition at line 296 of file CylindricalEta3D.h.

## ◆ Theta()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Theta ( ) const
inline

Definition at line 155 of file CylindricalEta3D.h.

## ◆ X()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::X ( ) const
inline

Definition at line 138 of file CylindricalEta3D.h.

## ◆ x()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::x ( ) const
inline

Definition at line 244 of file CylindricalEta3D.h.

## ◆ Y()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Y ( ) const
inline

Definition at line 139 of file CylindricalEta3D.h.

## ◆ y()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::y ( ) const
inline

Definition at line 245 of file CylindricalEta3D.h.

## ◆ Z()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::Z ( ) const
inline

Definition at line 140 of file CylindricalEta3D.h.

## ◆ z()

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::z ( ) const
inline

Definition at line 246 of file CylindricalEta3D.h.

## ◆ fEta

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::fEta
private

Definition at line 272 of file CylindricalEta3D.h.

## ◆ fPhi

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::fPhi
private

Definition at line 273 of file CylindricalEta3D.h.

## ◆ fRho

template<class T>
 T ROOT::Math::CylindricalEta3D< T >::fRho
private

Definition at line 271 of file CylindricalEta3D.h.

Libraries for ROOT::Math::CylindricalEta3D< T >:
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The documentation for this class was generated from the following file: