Gabriele Cosmo
85 lines
3.0 KiB
Plaintext
85 lines
3.0 KiB
Plaintext
//
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// ********************************************************************
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// * License and Disclaimer *
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// * *
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// * The Geant4 software is copyright of the Copyright Holders of *
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// * the Geant4 Collaboration. It is provided under the terms and *
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// * conditions of the Geant4 Software License, included in the file *
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// * LICENSE and available at http://cern.ch/geant4/license . These *
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// * include a list of copyright holders. *
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// * *
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// * Neither the authors of this software system, nor their employing *
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// * institutes,nor the agencies providing financial support for this *
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// * work make any representation or warranty, express or implied, *
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// * regarding this software system or assume any liability for its *
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// * use. Please see the license in the file LICENSE and URL above *
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// * for the full disclaimer and the limitation of liability. *
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// * *
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// * This code implementation is the result of the scientific and *
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// * technical work of the GEANT4 collaboration. *
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// * By using, copying, modifying or distributing the software (or *
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// * any work based on the software) you agree to acknowledge its *
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// * use in resulting scientific publications, and indicate your *
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// * acceptance of all terms of the Geant4 Software license. *
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// ********************************************************************
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//
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// G4VFSALIntegrationStepper inline methods implementation
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//
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// Author: Somnath Banerjee (CERN, Google Summer of Code 2015), 26.05.2016
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// Supervision: John Apostolakis (CERN)
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// --------------------------------------------------------------------
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inline
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G4EquationOfMotion* G4VFSALIntegrationStepper::GetEquationOfMotion()
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{
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return fEquation_Rhs;
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}
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inline void
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G4VFSALIntegrationStepper::SetEquationOfMotion(G4EquationOfMotion* newEquation)
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{
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if( newEquation != nullptr )
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{
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fEquation_Rhs = newEquation;
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}
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}
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inline
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G4int G4VFSALIntegrationStepper::GetNumberOfVariables() const
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{
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return fNoIntegrationVariables;
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}
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inline
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G4int G4VFSALIntegrationStepper::GetNumberOfStateVariables() const
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{
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return fNoStateVariables;
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}
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inline
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void G4VFSALIntegrationStepper::NormaliseTangentVector( G4double vec[6] )
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{
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G4double drds2 = vec[3]*vec[3]+vec[4]*vec[4]+vec[5]*vec[5];
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if( std::fabs(drds2 - 1.0) > 1.e-14 )
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{
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G4double normx = 1.0 / std::sqrt(drds2);
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for(auto i=3; i<6; ++i) { vec[i] *= normx; }
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}
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}
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inline
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void G4VFSALIntegrationStepper::NormalisePolarizationVector( G4double vec[12] )
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{
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G4double drds2 = vec[9]*vec[9]+vec[10]*vec[10]+vec[11]*vec[11];
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if( drds2 > 0. )
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{
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if( std::fabs(drds2 - 1.0) > 1.e-14 )
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{
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G4double normx = 1.0 / std::sqrt(drds2);
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for(auto i=9; i<12; ++i) { vec[i] *= normx; }
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}
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}
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}
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