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Public Member Functions | Static Public Member Functions | Protected Member Functions | Protected Attributes | Friends
CLHEP::HepBoostX Class Reference

#include <BoostX.h>

Public Member Functions

double beta () const
 
Hep3Vector boostVector () const
 
HepLorentzVector col1 () const
 
HepLorentzVector col2 () const
 
HepLorentzVector col3 () const
 
HepLorentzVector col4 () const
 
int compare (const HepBoostX &b) const
 
void decompose (Hep3Vector &boost, HepAxisAngle &rotation) const
 
void decompose (HepAxisAngle &rotation, Hep3Vector &boost) const
 
void decompose (HepBoost &boost, HepRotation &rotation) const
 
void decompose (HepRotation &rotation, HepBoost &boost) const
 
double distance2 (const HepBoost &b) const
 
double distance2 (const HepBoostX &b) const
 
double distance2 (const HepLorentzRotation &lt) const
 
double distance2 (const HepRotation &r) const
 
double gamma () const
 
Hep3Vector getDirection () const
 
 HepBoostX ()
 
 HepBoostX (const HepBoostX &b)
 
 HepBoostX (double beta)
 
 HepBoostX (HepBoostX &&b)=default
 
double howNear (const HepBoost &b) const
 
double howNear (const HepBoostX &b) const
 
double howNear (const HepLorentzRotation &lt) const
 
double howNear (const HepRotation &r) const
 
HepBoostX inverse () const
 
HepBoostX & invert ()
 
bool isIdentity () const
 
bool isNear (const HepBoost &b, double epsilon=Hep4RotationInterface::tolerance) const
 
bool isNear (const HepBoostX &b, double epsilon=Hep4RotationInterface::tolerance) const
 
bool isNear (const HepLorentzRotation &lt, double epsilon=Hep4RotationInterface::tolerance) const
 
bool isNear (const HepRotation &r, double epsilon=Hep4RotationInterface::tolerance) const
 
double norm2 () const
 
bool operator!= (const HepBoostX &b) const
 
HepLorentzVector operator() (const HepLorentzVector &w) const
 
HepLorentzRotation operator* (const HepBoost &b) const
 
HepBoostX operator* (const HepBoostX &b) const
 
HepLorentzRotation operator* (const HepLorentzRotation &lt) const
 
HepLorentzVector operator* (const HepLorentzVector &w) const
 
HepLorentzRotation operator* (const HepRotation &r) const
 
bool operator< (const HepBoostX &b) const
 
bool operator<= (const HepBoostX &b) const
 
HepBoostX & operator= (const HepBoostX &m)
 
HepBoostX & operator= (HepBoostX &&m)=default
 
bool operator== (const HepBoostX &b) const
 
bool operator> (const HepBoostX &b) const
 
bool operator>= (const HepBoostX &b) const
 
std::ostream & print (std::ostream &os) const
 
void rectify ()
 
HepRep4x4 rep4x4 () const
 
HepRep4x4Symmetric rep4x4Symmetric () const
 
HepLorentzVector row1 () const
 
HepLorentzVector row2 () const
 
HepLorentzVector row3 () const
 
HepLorentzVector row4 () const
 
HepBoostX & set (double beta)
 
double tt () const
 
double tx () const
 
double ty () const
 
double tz () const
 
double xt () const
 
double xx () const
 
double xy () const
 
double xz () const
 
double yt () const
 
double yx () const
 
double yy () const
 
double yz () const
 
double zt () const
 
double zx () const
 
double zy () const
 
double zz () const
 

Static Public Member Functions

static double getTolerance ()
 
static double setTolerance (double tol)
 

Protected Member Functions

 HepBoostX (double beta, double gamma)
 
HepLorentzRotation matrixMultiplication (const HepRep4x4 &m) const
 
HepLorentzRotation matrixMultiplication (const HepRep4x4Symmetric &m) const
 
HepLorentzVector vectorMultiplication (const HepLorentzVector &w) const
 

Protected Attributes

double beta_
 
double gamma_
 

Friends

HepBoostX inverseOf (const HepBoostX &b)
 

Detailed Description

Author

Definition at line 37 of file BoostX.h.

Constructor & Destructor Documentation

◆ HepBoostX() [1/5]

CLHEP::HepBoostX::HepBoostX ( )
inline

Referenced by operator*().

◆ HepBoostX() [2/5]

CLHEP::HepBoostX::HepBoostX ( const HepBoostX &  b)
inline

◆ HepBoostX() [3/5]

CLHEP::HepBoostX::HepBoostX ( HepBoostX &&  b)
inlinedefault

◆ HepBoostX() [4/5]

CLHEP::HepBoostX::HepBoostX ( double  beta)
inline

◆ HepBoostX() [5/5]

CLHEP::HepBoostX::HepBoostX ( double  beta,
double  gamma 
)
inlineprotected

Member Function Documentation

◆ beta()

double CLHEP::HepBoostX::beta ( ) const
inline

Referenced by operator*().

◆ boostVector()

Hep3Vector CLHEP::HepBoostX::boostVector ( ) const
inline

Referenced by decompose().

◆ col1()

HepLorentzVector CLHEP::HepBoostX::col1 ( ) const
inline

◆ col2()

HepLorentzVector CLHEP::HepBoostX::col2 ( ) const
inline

◆ col3()

HepLorentzVector CLHEP::HepBoostX::col3 ( ) const
inline

◆ col4()

HepLorentzVector CLHEP::HepBoostX::col4 ( ) const
inline

◆ compare()

int CLHEP::HepBoostX::compare ( const HepBoostX &  b) const
inline

◆ decompose() [1/4]

void CLHEP::HepBoostX::decompose ( Hep3Vector &  boost,
HepAxisAngle &  rotation 
) const

Definition at line 75 of file BoostX.cc.

75 {
76 rotation = HepAxisAngle();
77 boost = boostVector();
78}
CLHEP::HepBoostX::boostVector
Hep3Vector boostVector() const

References boostVector().

◆ decompose() [2/4]

void CLHEP::HepBoostX::decompose ( HepAxisAngle &  rotation,
Hep3Vector &  boost 
) const

Definition at line 63 of file BoostX.cc.

63 {
64 rotation = HepAxisAngle();
65 boost = boostVector();
66}

References boostVector().

◆ decompose() [3/4]

void CLHEP::HepBoostX::decompose ( HepBoost &  boost,
HepRotation &  rotation 
) const

Definition at line 68 of file BoostX.cc.

68 {
69 HepAxisAngle vdelta = HepAxisAngle();
70 rotation = HepRotation(vdelta);
71 Hep3Vector bbeta = boostVector();
72 boost = HepBoost(bbeta);
73}

References boostVector().

◆ decompose() [4/4]

void CLHEP::HepBoostX::decompose ( HepRotation &  rotation,
HepBoost &  boost 
) const

Definition at line 56 of file BoostX.cc.

56 {
57 HepAxisAngle vdelta = HepAxisAngle();
58 rotation = HepRotation(vdelta);
59 Hep3Vector bbeta = boostVector();
60 boost = HepBoost(bbeta);
61}

References boostVector().

◆ distance2() [1/4]

double CLHEP::HepBoostX::distance2 ( const HepBoost &  b) const

Definition at line 82 of file BoostX.cc.

82 {
83 return b.distance2(*this);
84}

References CLHEP::HepBoost::distance2().

◆ distance2() [2/4]

double CLHEP::HepBoostX::distance2 ( const HepBoostX &  b) const
inline

Referenced by distance2(), and isNear().

◆ distance2() [3/4]

double CLHEP::HepBoostX::distance2 ( const HepLorentzRotation &  lt) const

Definition at line 92 of file BoostX.cc.

92 {
93 HepBoost b1;
94 HepRotation r1;
95 lt.decompose(b1,r1);
96 double db2 = distance2(b1);
97 double dr2 = r1.norm2();
98 return (db2 + dr2);
99}
CLHEP::HepBoostX::distance2
double distance2(const HepBoostX &b) const

References CLHEP::HepLorentzRotation::decompose(), distance2(), and CLHEP::HepRotation::norm2().

◆ distance2() [4/4]

double CLHEP::HepBoostX::distance2 ( const HepRotation &  r) const

Definition at line 86 of file BoostX.cc.

86 {
87 double db2 = norm2();
88 double dr2 = r.norm2();
89 return (db2 + dr2);
90}
CLHEP::HepBoostX::norm2
double norm2() const

References norm2(), and CLHEP::HepRotation::norm2().

◆ gamma()

double CLHEP::HepBoostX::gamma ( ) const
inline

◆ getDirection()

Hep3Vector CLHEP::HepBoostX::getDirection ( ) const
inline

◆ getTolerance()

static double CLHEP::HepBoostX::getTolerance ( )
inlinestatic

◆ howNear() [1/4]

double CLHEP::HepBoostX::howNear ( const HepBoost &  b) const
inline

◆ howNear() [2/4]

double CLHEP::HepBoostX::howNear ( const HepBoostX &  b) const
inline

◆ howNear() [3/4]

double CLHEP::HepBoostX::howNear ( const HepLorentzRotation &  lt) const
inline

◆ howNear() [4/4]

double CLHEP::HepBoostX::howNear ( const HepRotation &  r) const
inline

◆ inverse()

HepBoostX CLHEP::HepBoostX::inverse ( ) const
inline

◆ invert()

HepBoostX & CLHEP::HepBoostX::invert ( )
inline

◆ isIdentity()

bool CLHEP::HepBoostX::isIdentity ( ) const
inline

◆ isNear() [1/4]

bool CLHEP::HepBoostX::isNear ( const HepBoost &  b,
double  epsilon = Hep4RotationInterface::tolerance 
) const
inline

◆ isNear() [2/4]

bool CLHEP::HepBoostX::isNear ( const HepBoostX &  b,
double  epsilon = Hep4RotationInterface::tolerance 
) const
inline

◆ isNear() [3/4]

bool CLHEP::HepBoostX::isNear ( const HepLorentzRotation &  lt,
double  epsilon = Hep4RotationInterface::tolerance 
) const

Definition at line 108 of file BoostX.cc.

109 {
110 HepBoost b1;
111 HepRotation r1;
112 double db2 = distance2(b1);
113 lt.decompose(b1,r1);
114 if (db2 > epsilon*epsilon) return false;
115 double dr2 = r1.norm2();
116 return (db2 + dr2);
117}
epsilon
G4double epsilon(G4double density, G4double temperature)
Definition: G4DNAElectronHoleRecombination.cc:95

References CLHEP::HepLorentzRotation::decompose(), distance2(), epsilon(), and CLHEP::HepRotation::norm2().

◆ isNear() [4/4]

bool CLHEP::HepBoostX::isNear ( const HepRotation &  r,
double  epsilon = Hep4RotationInterface::tolerance 
) const

Definition at line 101 of file BoostX.cc.

101 {
102 double db2 = norm2();
103 if (db2 > epsilon*epsilon) return false;
104 double dr2 = r.norm2();
105 return (db2+dr2 <= epsilon*epsilon);
106}

References epsilon(), norm2(), and CLHEP::HepRotation::norm2().

◆ matrixMultiplication() [1/2]

HepLorentzRotation CLHEP::HepBoostX::matrixMultiplication ( const HepRep4x4 &  m) const
protected

◆ matrixMultiplication() [2/2]

HepLorentzRotation CLHEP::HepBoostX::matrixMultiplication ( const HepRep4x4Symmetric &  m) const
protected

◆ norm2()

double CLHEP::HepBoostX::norm2 ( ) const
inline

Referenced by distance2(), and isNear().

◆ operator!=()

bool CLHEP::HepBoostX::operator!= ( const HepBoostX &  b) const
inline

◆ operator()()

HepLorentzVector CLHEP::HepBoostX::operator() ( const HepLorentzVector &  w) const
inline

◆ operator*() [1/5]

HepLorentzRotation CLHEP::HepBoostX::operator* ( const HepBoost &  b) const

Definition at line 141 of file BoostX.cc.

141 {
142 HepLorentzRotation me (*this);
143 return me*b;
144}

◆ operator*() [2/5]

HepBoostX CLHEP::HepBoostX::operator* ( const HepBoostX &  b) const

Definition at line 138 of file BoostX.cc.

138 {
139 return HepBoostX ( (beta()+b.beta()) / (1+beta()*b.beta()) );
140}
CLHEP::HepBoostX::beta
double beta() const

References beta(), and HepBoostX().

◆ operator*() [3/5]

HepLorentzRotation CLHEP::HepBoostX::operator* ( const HepLorentzRotation &  lt) const

Definition at line 149 of file BoostX.cc.

149 {
150 HepLorentzRotation me (*this);
151 return me*lt;
152}

◆ operator*() [4/5]

HepLorentzVector CLHEP::HepBoostX::operator* ( const HepLorentzVector &  w) const
inline

◆ operator*() [5/5]

HepLorentzRotation CLHEP::HepBoostX::operator* ( const HepRotation &  r) const

Definition at line 145 of file BoostX.cc.

145 {
146 HepLorentzRotation me (*this);
147 return me*r;
148}

◆ operator<()

bool CLHEP::HepBoostX::operator< ( const HepBoostX &  b) const
inline

◆ operator<=()

bool CLHEP::HepBoostX::operator<= ( const HepBoostX &  b) const
inline

◆ operator=() [1/2]

HepBoostX & CLHEP::HepBoostX::operator= ( const HepBoostX &  m)
inline

◆ operator=() [2/2]

HepBoostX & CLHEP::HepBoostX::operator= ( HepBoostX &&  m)
inlinedefault

◆ operator==()

bool CLHEP::HepBoostX::operator== ( const HepBoostX &  b) const
inline

◆ operator>()

bool CLHEP::HepBoostX::operator> ( const HepBoostX &  b) const
inline

◆ operator>=()

bool CLHEP::HepBoostX::operator>= ( const HepBoostX &  b) const
inline

◆ print()

std::ostream & CLHEP::HepBoostX::print ( std::ostream &  os) const

Definition at line 156 of file BoostX.cc.

156 {
157 os << "Boost in X direction (beta = " << beta_
158 << ", gamma = " << gamma_ << ") ";
159 return os;
160}
CLHEP::HepBoostX::beta_
double beta_
Definition: BoostX.h:206
CLHEP::HepBoostX::gamma_
double gamma_
Definition: BoostX.h:207

References beta_, and gamma_.

◆ rectify()

void CLHEP::HepBoostX::rectify ( )

Definition at line 121 of file BoostX.cc.

121 {
122 // Assuming the representation of this is close to a true pure boost,
123 // but may have drifted due to round-off error from many operations,
124 // this forms an "exact" pure boostX matrix for again.
125
126 double b2 = beta_*beta_;
127 if (b2 >= 1) {
128 beta_ = 1.0 - 1.0e-8; // NaN-proofing
129 b2 = beta_*beta_;
130 }
131 gamma_ = 1.0 / std::sqrt(1.0 - b2);
132}

References beta_, and gamma_.

◆ rep4x4()

HepRep4x4 CLHEP::HepBoostX::rep4x4 ( ) const

Definition at line 38 of file BoostX.cc.

38 {
39 double bg = beta_*gamma_;
40 return HepRep4x4( gamma_, 0, 0, bg,
41 0, 1, 0, 0,
42 0, 0, 1, 0,
43 bg, 0, 0, gamma_ );
44}

References beta_, and gamma_.

◆ rep4x4Symmetric()

HepRep4x4Symmetric CLHEP::HepBoostX::rep4x4Symmetric ( ) const

Definition at line 46 of file BoostX.cc.

46 {
47 double bg = beta_*gamma_;
48 return HepRep4x4Symmetric( gamma_, 0, 0, bg,
49 1, 0, 0,
50 1, 0,
51 gamma_ );
52}

References beta_, and gamma_.

◆ row1()

HepLorentzVector CLHEP::HepBoostX::row1 ( ) const
inline

◆ row2()

HepLorentzVector CLHEP::HepBoostX::row2 ( ) const
inline

◆ row3()

HepLorentzVector CLHEP::HepBoostX::row3 ( ) const
inline

◆ row4()

HepLorentzVector CLHEP::HepBoostX::row4 ( ) const
inline

◆ set()

HepBoostX & CLHEP::HepBoostX::set ( double  beta)

Definition at line 22 of file BoostX.cc.

22 {
23 double b2 = bbeta*bbeta;
24 if (b2 >= 1) {
25 std::cerr << "HepBoostX::set() - "
26 << "Beta supplied to set HepBoostX represents speed >= c." << std::endl;
27 beta_ = 1.0 - 1.0E-8; // NaN-proofing
28 gamma_ = 1.0 / std::sqrt(1.0 - b2);
29 return *this;
30 }
31 beta_ = bbeta;
32 gamma_ = 1.0 / std::sqrt(1.0 - b2);
33 return *this;
34}

References beta_, and gamma_.

◆ setTolerance()

static double CLHEP::HepBoostX::setTolerance ( double  tol)
inlinestatic

◆ tt()

double CLHEP::HepBoostX::tt ( ) const
inline

◆ tx()

double CLHEP::HepBoostX::tx ( ) const
inline

◆ ty()

double CLHEP::HepBoostX::ty ( ) const
inline

◆ tz()

double CLHEP::HepBoostX::tz ( ) const
inline

◆ vectorMultiplication()

HepLorentzVector CLHEP::HepBoostX::vectorMultiplication ( const HepLorentzVector &  w) const
inlineprotected

◆ xt()

double CLHEP::HepBoostX::xt ( ) const
inline

◆ xx()

double CLHEP::HepBoostX::xx ( ) const
inline

◆ xy()

double CLHEP::HepBoostX::xy ( ) const
inline

◆ xz()

double CLHEP::HepBoostX::xz ( ) const
inline

◆ yt()

double CLHEP::HepBoostX::yt ( ) const
inline

◆ yx()

double CLHEP::HepBoostX::yx ( ) const
inline

◆ yy()

double CLHEP::HepBoostX::yy ( ) const
inline

◆ yz()

double CLHEP::HepBoostX::yz ( ) const
inline

◆ zt()

double CLHEP::HepBoostX::zt ( ) const
inline

◆ zx()

double CLHEP::HepBoostX::zx ( ) const
inline

◆ zy()

double CLHEP::HepBoostX::zy ( ) const
inline

◆ zz()

double CLHEP::HepBoostX::zz ( ) const
inline

Friends And Related Function Documentation

◆ inverseOf

HepBoostX inverseOf ( const HepBoostX &  b)
friend

Field Documentation

◆ beta_

double CLHEP::HepBoostX::beta_
protected

Definition at line 206 of file BoostX.h.

Referenced by print(), rectify(), rep4x4(), rep4x4Symmetric(), and set().

◆ gamma_

double CLHEP::HepBoostX::gamma_
protected

Definition at line 207 of file BoostX.h.

Referenced by print(), rectify(), rep4x4(), rep4x4Symmetric(), and set().

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