source: trunk/examples/novice/N02/src/ExN02MagneticField.cc@ 812

Last change on this file since 812 was 807, checked in by garnier, 17 years ago

update

File size: 3.9 KB
RevLine 
[807]1//
2// ********************************************************************
3// * License and Disclaimer *
4// * *
5// * The Geant4 software is copyright of the Copyright Holders of *
6// * the Geant4 Collaboration. It is provided under the terms and *
7// * conditions of the Geant4 Software License, included in the file *
8// * LICENSE and available at http://cern.ch/geant4/license . These *
9// * include a list of copyright holders. *
10// * *
11// * Neither the authors of this software system, nor their employing *
12// * institutes,nor the agencies providing financial support for this *
13// * work make any representation or warranty, express or implied, *
14// * regarding this software system or assume any liability for its *
15// * use. Please see the license in the file LICENSE and URL above *
16// * for the full disclaimer and the limitation of liability. *
17// * *
18// * This code implementation is the result of the scientific and *
19// * technical work of the GEANT4 collaboration. *
20// * By using, copying, modifying or distributing the software (or *
21// * any work based on the software) you agree to acknowledge its *
22// * use in resulting scientific publications, and indicate your *
23// * acceptance of all terms of the Geant4 Software license. *
24// ********************************************************************
25//
26//
27// $Id: ExN02MagneticField.cc,v 1.9 2007/08/22 13:11:51 gcosmo Exp $
28// GEANT4 tag $Name: $
29//
30// User Field class implementation.
31//
32//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
33//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
34
35#include "ExN02MagneticField.hh"
36#include "G4FieldManager.hh"
37#include "G4TransportationManager.hh"
38
39//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
40
41ExN02MagneticField::ExN02MagneticField()
42 : G4UniformMagField(G4ThreeVector())
43{
44 GetGlobalFieldManager()->SetDetectorField(this);
45 GetGlobalFieldManager()->CreateChordFinder(this);
46}
47
48//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
49
50ExN02MagneticField::ExN02MagneticField(G4ThreeVector fieldVector)
51 : G4UniformMagField(fieldVector)
52{
53 GetGlobalFieldManager()->SetDetectorField(this);
54 GetGlobalFieldManager()->CreateChordFinder(this);
55}
56
57//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
58
59ExN02MagneticField::~ExN02MagneticField()
60{
61}
62
63//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
64
65// Set the value of the Global Field to fieldValue along X
66//
67void ExN02MagneticField::SetMagFieldValue(G4double fieldValue)
68{
69 SetMagFieldValue(G4ThreeVector(fieldValue,0,0));
70}
71
72//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
73
74// Set the value of the Global Field
75//
76void ExN02MagneticField::SetMagFieldValue(G4ThreeVector fieldVector)
77{
78 // Find the Field Manager for the global field
79 G4FieldManager* fieldMgr= GetGlobalFieldManager();
80
81 if(fieldVector!=G4ThreeVector(0.,0.,0.))
82 {
83 SetFieldValue(fieldVector);
84 fieldMgr->SetDetectorField(this);
85 } else {
86 // If the new field's value is Zero, then it is best to
87 // insure that it is not used for propagation.
88 G4MagneticField* magField = 0;
89 fieldMgr->SetDetectorField(magField);
90 }
91}
92
93//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
94
95G4FieldManager* ExN02MagneticField::GetGlobalFieldManager()
96{
97 return G4TransportationManager::GetTransportationManager()->GetFieldManager();
98}
99
100//....oooOO0OOooo........oooOO0OOooo........oooOO0OOooo........oooOO0OOooo......
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