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25 // 22 //
26 // G4UniformMagField implementation <<
27 // 23 //
28 // Created: V.Grichine, 30.01.1997 << 24 // $Id: G4UniformMagField.cc,v 1.9 2004/02/09 14:43:10 gcosmo Exp $
>> 25 // GEANT4 tag $Name: geant4-06-00-patch-01 $
>> 26 //
>> 27 //
>> 28 // Class for creation of uniform Magnetic Field
>> 29 //
>> 30 // 30.1.97 V.Grichine
>> 31 //
29 // ------------------------------------------- 32 // -------------------------------------------------------------------
30 33
31 #include "G4UniformMagField.hh" 34 #include "G4UniformMagField.hh"
32 #include "G4PhysicalConstants.hh" <<
33 35
34 G4UniformMagField::G4UniformMagField(const G4T 36 G4UniformMagField::G4UniformMagField(const G4ThreeVector& FieldVector )
35 { 37 {
36 fFieldComponents[0] = FieldVector.x(); << 38 fFieldComponents[0] = FieldVector.x();
37 fFieldComponents[1] = FieldVector.y(); << 39 fFieldComponents[1] = FieldVector.y();
38 fFieldComponents[2] = FieldVector.z(); << 40 fFieldComponents[2] = FieldVector.z();
39 } 41 }
40 42
41 G4UniformMagField::~G4UniformMagField() = defa << 43 void
42 << 44 G4UniformMagField::SetFieldValue(const G4ThreeVector& newFieldVector )
43 G4UniformMagField::G4UniformMagField (const G4 <<
44 : G4MagneticField(p) <<
45 { 45 {
46 for (auto i=0; i<3; ++i) << 46 fFieldComponents[0] = newFieldVector.x();
47 { << 47 fFieldComponents[1] = newFieldVector.y();
48 fFieldComponents[i] = p.fFieldComponents[ << 48 fFieldComponents[2] = newFieldVector.z();
49 } <<
50 } 49 }
51 << 50
52 G4UniformMagField& G4UniformMagField::operator << 51 G4UniformMagField::G4UniformMagField(G4double vField,
>> 52 G4double vTheta,
>> 53 G4double vPhi )
53 { 54 {
54 if (&p == this) { return *this;} << 55 if(vField >= 0 &&
55 G4MagneticField::operator=(p); << 56 vTheta >= 0 && vTheta <= pi &&
56 for (auto i=0; i<3; ++i) << 57 vPhi >= 0 && vPhi <= twopi)
57 { 58 {
58 fFieldComponents[i] = p.fFieldComponents[ << 59 fFieldComponents[0] = vField*sin(vTheta)*cos(vPhi) ;
>> 60 fFieldComponents[1] = vField*sin(vTheta)*sin(vPhi) ;
>> 61 fFieldComponents[2] = vField*cos(vTheta) ;
>> 62 }
>> 63 else
>> 64 {
>> 65 G4Exception("G4UniformMagField::G4UniformMagField()",
>> 66 "WrongArgumentValue", FatalException, "Invalid parameters.") ;
59 } 67 }
60 return *this; <<
61 } 68 }
62 69
63 G4Field* G4UniformMagField::Clone() const << 70 G4UniformMagField::~G4UniformMagField()
64 { 71 {
65 return new G4UniformMagField( G4ThreeVector <<
66 <<
67 <<
68 } 72 }
69 73
70 void << 74 G4UniformMagField::G4UniformMagField (const G4UniformMagField &p)
71 G4UniformMagField::SetFieldValue(const G4Three << 75 : G4MagneticField(p)
72 { 76 {
73 fFieldComponents[0] = newFieldVector.x(); << 77 for (G4int i=0; i<3; i++)
74 fFieldComponents[1] = newFieldVector.y(); << 78 fFieldComponents[i] = p.fFieldComponents[i];
75 fFieldComponents[2] = newFieldVector.z(); <<
76 } 79 }
77 << 80
78 G4UniformMagField::G4UniformMagField(G4double << 81 G4UniformMagField& G4UniformMagField::operator = (const G4UniformMagField &p)
79 G4double <<
80 G4double <<
81 { 82 {
82 if ( (vField<0) || (vTheta<0) || (vTheta>pi << 83 if (&p == this) return *this;
83 { << 84 for (G4int i=0; i<3; i++)
84 std::ostringstream msg; << 85 fFieldComponents[i] = p.fFieldComponents[i];
85 msg << "ERROR in G4UniformMagField::G4Un << 86 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 } 87 }
110 88
111 // ------------------------------------------- 89 // ------------------------------------------------------------------------
112 90
113 void G4UniformMagField::GetFieldValue (const G 91 void G4UniformMagField::GetFieldValue (const G4double [4],
114 G << 92 G4double *B ) const
115 { 93 {
116 B[0]= fFieldComponents[0]; << 94 B[0]= fFieldComponents[0] ;
117 B[1]= fFieldComponents[1]; << 95 B[1]= fFieldComponents[1] ;
118 B[2]= fFieldComponents[2]; << 96 B[2]= fFieldComponents[2] ;
119 } 97 }
120 98
121 G4ThreeVector G4UniformMagField::GetConstantFi 99 G4ThreeVector G4UniformMagField::GetConstantFieldValue() const
122 { 100 {
123 G4ThreeVector B(fFieldComponents[0], 101 G4ThreeVector B(fFieldComponents[0],
124 fFieldComponents[1], 102 fFieldComponents[1],
125 fFieldComponents[2]); 103 fFieldComponents[2]);
126 return B; << 104 return B;
127 } 105 }
128 106