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25 // 22 //
26 // G4UniformMagField implementation <<
27 // 23 //
28 // Created: V.Grichine, 30.01.1997 << 24 // $Id: G4UniformMagField.cc,v 1.6 2003/04/02 08:50:39 gcosmo Exp $
29 // ------------------------------------------- << 25 // GEANT4 tag $Name: geant4-05-02-patch-01 $
30 << 26 //
>> 27 //
>> 28 //
>> 29 // Class for creation of uniform Magnetic Field
>> 30 //
>> 31 // 30.1.97 V.Grichine
>> 32 //
31 #include "G4UniformMagField.hh" 33 #include "G4UniformMagField.hh"
32 #include "G4PhysicalConstants.hh" << 34 #include "globals.hh"
>> 35 #include "geomdefs.hh"
33 36
34 G4UniformMagField::G4UniformMagField(const G4T 37 G4UniformMagField::G4UniformMagField(const G4ThreeVector& FieldVector )
35 { 38 {
36 fFieldComponents[0] = FieldVector.x(); << 39 fFieldComponents[0] = FieldVector.x();
37 fFieldComponents[1] = FieldVector.y(); << 40 fFieldComponents[1] = FieldVector.y();
38 fFieldComponents[2] = FieldVector.z(); << 41 fFieldComponents[2] = FieldVector.z();
39 } 42 }
40 43
41 G4UniformMagField::~G4UniformMagField() = defa << 44 void
42 << 45 G4UniformMagField::SetFieldValue(const G4ThreeVector& newFieldVector )
43 G4UniformMagField::G4UniformMagField (const G4 <<
44 : G4MagneticField(p) <<
45 { 46 {
46 for (auto i=0; i<3; ++i) << 47 fFieldComponents[0] = newFieldVector.x();
47 { << 48 fFieldComponents[1] = newFieldVector.y();
48 fFieldComponents[i] = p.fFieldComponents[ << 49 fFieldComponents[2] = newFieldVector.z();
49 } <<
50 } 50 }
51 << 51
52 G4UniformMagField& G4UniformMagField::operator << 52 G4UniformMagField::G4UniformMagField(G4double vField,
>> 53 G4double vTheta,
>> 54 G4double vPhi )
53 { 55 {
54 if (&p == this) { return *this;} << 56 if(vField >= 0 &&
55 G4MagneticField::operator=(p); << 57 vTheta >= 0 && vTheta <= pi &&
56 for (auto i=0; i<3; ++i) << 58 vPhi >= 0 && vPhi <= twopi)
57 { 59 {
58 fFieldComponents[i] = p.fFieldComponents[ << 60 fFieldComponents[0] = vField*sin(vTheta)*cos(vPhi) ;
>> 61 fFieldComponents[1] = vField*sin(vTheta)*sin(vPhi) ;
>> 62 fFieldComponents[2] = vField*cos(vTheta) ;
>> 63 }
>> 64 else
>> 65 {
>> 66 G4Exception("Invalid parameters in G4UniformMagField::G4UniformMagField") ;
59 } 67 }
60 return *this; <<
61 } 68 }
62 69
63 G4Field* G4UniformMagField::Clone() const << 70 G4UniformMagField::~G4UniformMagField()
64 { 71 {
65 return new G4UniformMagField( G4ThreeVector << 72 ;
66 <<
67 <<
68 } 73 }
69 74
70 void << 75 G4UniformMagField::G4UniformMagField (const G4UniformMagField &p)
71 G4UniformMagField::SetFieldValue(const G4Three << 76 : G4MagneticField(p)
72 { 77 {
73 fFieldComponents[0] = newFieldVector.x(); << 78 for (G4int i=0; i<3; i++)
74 fFieldComponents[1] = newFieldVector.y(); << 79 fFieldComponents[i] = p.fFieldComponents[i];
75 fFieldComponents[2] = newFieldVector.z(); <<
76 } 80 }
77 << 81
78 G4UniformMagField::G4UniformMagField(G4double << 82 G4UniformMagField& G4UniformMagField::operator = (const G4UniformMagField &p)
79 G4double <<
80 G4double <<
81 { 83 {
82 if ( (vField<0) || (vTheta<0) || (vTheta>pi << 84 if (&p == this) return *this;
83 { << 85 for (G4int i=0; i<3; i++)
84 std::ostringstream msg; << 86 fFieldComponents[i] = p.fFieldComponents[i];
85 msg << "ERROR in G4UniformMagField::G4Un << 87 return *this;
86 << "Invalid parameter(s). " << std:: <<
87 msg << " Expected " << std::endl; <<
88 <<
89 msg << " - Magnitude vField: Value = " < <<
90 << " Expected vField > 0 " ; <<
91 if ( vField<0) { msg << " <------ Erron <<
92 msg << std::endl; <<
93 <<
94 msg << " - Theta angle: Value = " << vTh <<
95 << " Expected between 0 <= theta <= <<
96 if ( (vTheta<0) || (vTheta>pi) ) { msg < <<
97 <<
98 msg << std::endl; <<
99 msg << " - Phi angle: Value = " << vPh <<
100 << " Expected between 0 <= phi <= <<
101 if ( (vPhi<0) || (vPhi>twopi) ) { msg << <<
102 <<
103 G4Exception("G4UniformMagField::G4Unifor <<
104 "GeomField0002", FatalExcept <<
105 } <<
106 fFieldComponents[0] = vField*std::sin(vThet <<
107 fFieldComponents[1] = vField*std::sin(vThet <<
108 fFieldComponents[2] = vField*std::cos(vThet <<
109 } 88 }
110 89
111 // ------------------------------------------- 90 // ------------------------------------------------------------------------
112 91
>> 92
113 void G4UniformMagField::GetFieldValue (const G 93 void G4UniformMagField::GetFieldValue (const G4double [4],
114 G << 94 G4double *B ) const
115 { 95 {
116 B[0]= fFieldComponents[0]; << 96 B[0]= fFieldComponents[0] ;
117 B[1]= fFieldComponents[1]; << 97 B[1]= fFieldComponents[1] ;
118 B[2]= fFieldComponents[2]; << 98 B[2]= fFieldComponents[2] ;
>> 99 return ;
119 } 100 }
120 101
121 G4ThreeVector G4UniformMagField::GetConstantFi <<
122 { <<
123 G4ThreeVector B(fFieldComponents[0], <<
124 fFieldComponents[1], <<
125 fFieldComponents[2]); <<
126 return B; <<
127 } <<
128 102