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1 // 1 // 2 // ******************************************* 2 // ******************************************************************** 3 // * License and Disclaimer 3 // * License and Disclaimer * 4 // * 4 // * * 5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of * 6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and * 7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file * 8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These * 9 // * include a list of copyright holders. 9 // * include a list of copyright holders. * 10 // * 10 // * * 11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing * 12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this * 13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, * 14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its * 15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above * 16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. * 17 // * 17 // * * 18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and * 19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. * 20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or * 21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its * 22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your * 23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. * 24 // ******************************************* 24 // ******************************************************************** 25 // 25 // 26 // G4MagIntegratorStepper inline methods imple << 27 // 26 // 28 // Author: J.Apostolakis, CERN - 15.01.1997 << 27 // $Id: G4MagIntegratorStepper.icc,v 1.8.2.1 2006/06/29 18:23:05 gunter Exp $ 29 // ------------------------------------------- << 28 // GEANT4 tag $Name: geant4-08-01-patch-01 $ >> 29 // 30 30 31 inline 31 inline 32 G4int G4MagIntegratorStepper::IntegrationOrder << 33 { << 34 return fIntegrationOrder; << 35 } << 36 << 37 inline << 38 G4EquationOfMotion* G4MagIntegratorStepper::Ge 32 G4EquationOfMotion* G4MagIntegratorStepper::GetEquationOfMotion() 39 { 33 { 40 return fEquation_Rhs; << 34 return fEquation_Rhs; 41 } << 42 << 43 inline << 44 const G4EquationOfMotion* G4MagIntegratorStepp << 45 { << 46 return fEquation_Rhs; << 47 } << 48 << 49 inline << 50 void G4MagIntegratorStepper::SetEquationOfMoti << 51 { << 52 if( newEq != nullptr ) << 53 { << 54 fEquation_Rhs = newEq; << 55 } << 56 } 35 } 57 36 58 inline 37 inline 59 unsigned long G4MagIntegratorStepper::GetfNoRH << 60 { << 61 return fNoRHSCalls; << 62 } << 63 << 64 inline << 65 void G4MagIntegratorStepper::ResetfNORHSCalls( << 66 { << 67 fNoRHSCalls = 0; << 68 } << 69 << 70 inline << 71 G4bool G4MagIntegratorStepper::IsFSAL() const << 72 { << 73 return fIsFSAL; << 74 } << 75 << 76 inline << 77 void G4MagIntegratorStepper::SetIntegrationOrd << 78 { << 79 fIntegrationOrder = order; << 80 } << 81 << 82 inline << 83 void G4MagIntegratorStepper::SetFSAL(G4bool fl << 84 { << 85 fIsFSAL = flag; << 86 } << 87 << 88 inline << 89 G4int G4MagIntegratorStepper::GetNumberOfVaria 38 G4int G4MagIntegratorStepper::GetNumberOfVariables() const 90 { 39 { 91 return fNoIntegrationVariables; 40 return fNoIntegrationVariables; 92 } 41 } 93 42 94 43 95 inline 44 inline 96 G4int G4MagIntegratorStepper::GetNumberOfState 45 G4int G4MagIntegratorStepper::GetNumberOfStateVariables() const 97 { 46 { 98 return fNoStateVariables; 47 return fNoStateVariables; 99 } 48 } 100 49 101 inline << 50 // inline 102 void G4MagIntegratorStepper::RightHandSide(con << 51 // void G4MagIntegratorStepper::SetNumberOfVariables(G4int newNo) 103 << 52 // { 104 { << 53 // fNumberOfVariables = newNo; 105 fEquation_Rhs->RightHandSide(y, dydx); << 54 // } 106 ++fNoRHSCalls; // IncrementRHSCalls(); << 107 } << 108 55 109 inline 56 inline 110 void G4MagIntegratorStepper::RightHandSide(con << 57 void G4MagIntegratorStepper::RightHandSide( const double y[], double dydx[] ) 111 << 112 << 113 { 58 { 114 fEquation_Rhs->EvaluateRhsReturnB(y, dydx, f << 59 fEquation_Rhs-> RightHandSide(y, dydx); 115 ++fNoRHSCalls; << 116 } 60 } 117 61 118 inline 62 inline 119 void G4MagIntegratorStepper::NormaliseTangentV 63 void G4MagIntegratorStepper::NormaliseTangentVector( G4double vec[6] ) 120 { 64 { 121 G4double drds2 = vec[3]*vec[3]+vec[4]*vec[4] << 65 double drds2 = vec[3]*vec[3]+vec[4]*vec[4]+vec[5]*vec[5]; 122 << 123 if( std::fabs(drds2 - 1.0) > 1.e-14 ) << 124 { << 125 G4double normx = 1.0 / std::sqrt(drds2); << 126 for(auto i=3; i<6; ++i) { vec[i] *= normx; << 127 } << 128 } << 129 << 130 inline << 131 void G4MagIntegratorStepper::NormalisePolariza << 132 { << 133 G4double drds2 = vec[9]*vec[9]+vec[10]*vec[1 << 134 66 135 if( drds2 > 0. ) << 67 if( std::fabs(drds2 - 1.0) > 1.e-14 ){ 136 { << 68 double normx = 1.0 / std::sqrt(drds2); 137 if( std::fabs(drds2 - 1.0) > 1.e-14 ) << 69 for(int i=0;i<3;i++) 138 { << 70 vec[i+3] *= normx; 139 G4double normx = 1.0 / std::sqrt(drds2); << 71 } 140 for(auto i=9; i<12; ++i) { vec[i] *= no << 141 } << 142 } << 143 } 72 } 144 73