| Geant4 Cross Reference |
1 // 1
2 // *******************************************
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4 // *
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6 // * the Geant4 Collaboration. It is provided
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14 // * regarding this software system or assum
15 // * use. Please see the license in the file
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17 // *
18 // * This code implementation is the result
19 // * technical work of the GEANT4 collaboratio
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21 // * any work based on the software) you ag
22 // * use in resulting scientific publicati
23 // * acceptance of all terms of the Geant4 Sof
24 // *******************************************
25 //
26 // class G4GlobalMagFieldMessenger
27 //
28 // Implementation of the G4GlobalMagFieldMesse
29 //
30 // Author: Ivana Hrivnacova, 28/08/2013 (ivan
31 // -------------------------------------------
32
33 #include "G4GlobalMagFieldMessenger.hh"
34 #include "G4UniformMagField.hh"
35 #include "G4FieldManager.hh"
36 #include "G4TransportationManager.hh"
37 #include "G4UIdirectory.hh"
38 #include "G4UIcmdWith3VectorAndUnit.hh"
39 #include "G4UIcmdWithAnInteger.hh"
40 #include "G4UnitsTable.hh"
41 #include "G4SystemOfUnits.hh"
42
43 //____________________________________________
44
45 G4GlobalMagFieldMessenger::G4GlobalMagFieldMes
46 {
47 fDirectory = new G4UIdirectory("/globalField
48 fDirectory->SetGuidance("Global uniform magn
49
50 fSetValueCmd = new G4UIcmdWith3VectorAndUnit
51 fSetValueCmd->SetGuidance("Set uniform magne
52 fSetValueCmd->SetParameterName("Bx", "By", "
53 fSetValueCmd->SetUnitCategory("Magnetic flux
54 fSetValueCmd->AvailableForStates(G4State_Pre
55
56 fSetVerboseCmd = new G4UIcmdWithAnInteger("/
57 fSetVerboseCmd->SetGuidance("Set verbose lev
58 fSetVerboseCmd->SetGuidance(" 0: no output"
59 fSetVerboseCmd->SetGuidance(" 1: printing n
60 fSetVerboseCmd->SetParameterName("globalFiel
61 fSetVerboseCmd->SetRange("globalFieldVerbose
62 fSetVerboseCmd->AvailableForStates(G4State_P
63
64 // Create field
65 fMagField = new G4UniformMagField(value);
66
67 // Set field value (the field is not activat
68 SetField(value, "G4GlobalMagFieldMessenger::
69 }
70
71 //____________________________________________
72
73 G4GlobalMagFieldMessenger::~G4GlobalMagFieldMe
74 {
75 delete fMagField;
76 delete fSetValueCmd;
77 delete fSetVerboseCmd;
78 delete fDirectory;
79 }
80
81 //____________________________________________
82
83 void G4GlobalMagFieldMessenger::SetField(const
84 const
85 {
86 // Get field manager (or create it if it doe
87 G4FieldManager* fieldManager
88 = G4TransportationManager::GetTransportati
89
90 // Inactivate field if its value is zero
91 if ( value == G4ThreeVector() )
92 {
93 fieldManager->SetDetectorField(nullptr);
94 fieldManager->CreateChordFinder(nullptr);
95
96 if ( fVerboseLevel > 0 )
97 {
98 G4cout << "Magnetic field is inactive, f
99 }
100 }
101 else
102 {
103 fMagField->SetFieldValue(value);
104 fieldManager->SetDetectorField(fMagField);
105 fieldManager->CreateChordFinder(fMagField)
106
107 if ( fVerboseLevel > 0 )
108 {
109 G4cout << "Magnetic field is active, fie
110 << G4BestUnit(value, "Magnetic fl
111 << ")." << G4endl;
112 }
113 }
114 }
115
116 //____________________________________________
117
118 void G4GlobalMagFieldMessenger::SetNewValue(G4
119 {
120 if ( command == fSetValueCmd )
121 {
122 SetField(fSetValueCmd->GetNew3VectorValue(
123 "G4GlobalMagFieldMessenger::SetNe
124 }
125 else if ( command == fSetVerboseCmd )
126 {
127 SetVerboseLevel(fSetVerboseCmd->GetNewIntV
128 }
129 }
130
131 //____________________________________________
132
133 void G4GlobalMagFieldMessenger::SetFieldValue(
134 {
135 SetField(value, "G4GlobalMagFieldMessenger::
136 }
137
138 //____________________________________________
139
140 G4ThreeVector G4GlobalMagFieldMessenger::GetFi
141 {
142 if ( fMagField != nullptr ) { return fMagFie
143
144 return {};
145 }
146