Gabriele Cosmo
70 lines
2.7 KiB
C++
70 lines
2.7 KiB
C++
//
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// ********************************************************************
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// * DISCLAIMER *
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// * *
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// * The following disclaimer summarizes all the specific disclaimers *
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// * of contributors to this software. The specific disclaimers,which *
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// * govern, are listed with their locations in: *
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// * http://cern.ch/geant4/license *
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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. *
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// * *
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// * This code implementation is the intellectual property of the *
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// * GEANT4 collaboration. *
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// * By copying, distributing or modifying the Program (or any work *
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// * based on the Program) you indicate your acceptance of this *
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// * statement, and all its terms. *
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// ********************************************************************
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//
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//
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// $Id: G4BlineEquation.hh,v 1.1 2003/11/25 09:29:46 gcosmo Exp $
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// GEANT4 tag $Name: geant4-06-00-patch-01 $
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//
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//
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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();
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// Constructor and destructor.
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void EvaluateRhsGivenB( const G4double y[],
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const G4double B[3],
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G4double dydx[] ) const;
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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 backward_direction;
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G4double direction;
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};
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#endif
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