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