Geant4  10.02.p02
G4UniformMagField.cc
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27 // $Id: G4UniformMagField.cc 97486 2016-06-03 10:45:04Z gcosmo $
28 //
29 //
30 // Class for creation of uniform Magnetic Field
31 //
32 // 30.1.97 V.Grichine
33 //
34 // -------------------------------------------------------------------
35 
36 #include "G4UniformMagField.hh"
37 #include "G4PhysicalConstants.hh"
38 
40 {
41  fFieldComponents[0] = FieldVector.x();
42  fFieldComponents[1] = FieldVector.y();
43  fFieldComponents[2] = FieldVector.z();
44 }
45 
47 {
50  fFieldComponents[2]) );
51 }
52 
53 void
55 {
56  fFieldComponents[0] = newFieldVector.x();
57  fFieldComponents[1] = newFieldVector.y();
58  fFieldComponents[2] = newFieldVector.z();
59 }
60 
62  G4double vTheta,
63  G4double vPhi )
64 {
65  if ( (vField<0) || (vTheta<0) || (vTheta>pi) || (vPhi<0) || (vPhi>twopi) )
66  {
67  std::ostringstream msg;
68  msg << "ERROR in G4UniformMagField::G4UniformMagField(double, double, double) : "
69  << "Invalid parameter(s). " << std::endl;
70  msg << " Expected " << std::endl;
71 
72  msg << " - Magnitude vField: Value = " << vField
73  << " Expected vField > 0 " ;
74  if ( vField<0) { msg << " <------ Erroneous "; }
75  msg << std::endl;
76 
77  msg << " - Theta angle: Value = " << vTheta
78  << " Expected between 0 <= theta <= pi = " << pi << " ";
79  if ( (vTheta<0) || (vTheta>pi) ) { msg << " <------ Erroneous "; }
80 
81  msg << std::endl;
82  msg << " - Phi angle: Value = " << vPhi
83  << " Expected between 0 <= phi <= 2*pi = " << twopi << std::endl;
84  if ( (vPhi<0) || (vPhi>twopi) ) { msg << " <------ Erroneous "; }
85 
86  G4Exception("G4UniformMagField::G4UniformMagField()",
87  "GeomField0002", FatalException, msg ); // "Invalid parameters.") ;
88  }
89  fFieldComponents[0] = vField*std::sin(vTheta)*std::cos(vPhi) ;
90  fFieldComponents[1] = vField*std::sin(vTheta)*std::sin(vPhi) ;
91  fFieldComponents[2] = vField*std::cos(vTheta) ;
92 }
93 
95 {
96 }
97 
99  : G4MagneticField(p)
100 {
101  for (G4int i=0; i<3; i++)
102  {
104  }
105 }
106 
108 {
109  if (&p == this) return *this;
111  for (G4int i=0; i<3; i++)
112  {
114  }
115  return *this;
116 }
117 
118 // ------------------------------------------------------------------------
119 
121  G4double *B ) const
122 {
123  B[0]= fFieldComponents[0] ;
124  B[1]= fFieldComponents[1] ;
125  B[2]= fFieldComponents[2] ;
126 }
127 
129 {
131  fFieldComponents[1],
132  fFieldComponents[2]);
133  return B;
134 }
virtual G4Field * Clone() const
void SetFieldValue(const G4ThreeVector &newFieldValue)
G4double fFieldComponents[3]
CLHEP::Hep3Vector G4ThreeVector
G4UniformMagField(const G4ThreeVector &FieldVector)
double B(double temperature)
int G4int
Definition: G4Types.hh:78
G4UniformMagField & operator=(const G4UniformMagField &p)
static const double twopi
Definition: G4SIunits.hh:75
G4ThreeVector GetConstantFieldValue() const
void G4Exception(const char *originOfException, const char *exceptionCode, G4ExceptionSeverity severity, const char *comments)
Definition: G4Exception.cc:41
virtual ~G4UniformMagField()
static const double pi
Definition: G4SIunits.hh:74
G4MagneticField & operator=(const G4MagneticField &p)
virtual void GetFieldValue(const G4double yTrack[4], G4double *MagField) const
double G4double
Definition: G4Types.hh:76