Gabriele Cosmo
67 lines
2.8 KiB
C++
67 lines
2.8 KiB
C++
//
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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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/// \file G4BlineEquation.hh
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/// \brief Definition of the G4BlineEquation class
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// --------------------------------------------------------------------
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//
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// G4BlineEquation
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//
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// Class description:
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//
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// This class defines the equation of motion needed to trace magnetic
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// field lines in the simulation.
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// --------------------------------------------------------------------
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// Author: Laurent Desorgher (desorgher@phim.unibe.ch)
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// Created - 2003-10-06
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// --------------------------------------------------------------------
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#ifndef G4BlineEquation_h
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#define G4BlineEquation_h 1
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#include "G4Mag_EqRhs.hh"
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#include "G4MagneticField.hh"
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class G4BlineEquation : public G4Mag_EqRhs
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{
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public: // with description
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G4BlineEquation(G4MagneticField* magField);
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~G4BlineEquation() override = default;
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// Constructor and destructor.
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void EvaluateRhsGivenB(const G4double y[], const G4double B[3], G4double dydx[]) const override;
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// Given the value of the magnetic field B, this function
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// calculates the value of the derivative dydx.
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void SetBackwardDirectionOfIntegration(G4bool abool);
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private:
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G4bool fBackward_direction = false;
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G4double fDirection = 1.;
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};
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#endif
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