Gabriele Cosmo
77 lines
3.1 KiB
C++
77 lines
3.1 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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//
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// $Id: G4Mag_UsualEqRhs.hh,v 1.7 2006/06/29 18:23:12 gunter Exp $
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// GEANT4 tag $Name: geant4-09-01 $
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//
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//
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// class G4Mag_UsualEqRhs
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//
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// Class description:
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//
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// This is the standard right-hand side for equation of motion.
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// The only case another is required is when using a moving reference
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// frame ... or extending the class to include additional Forces,
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// eg an electric field
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// History:
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// - Created: J. Apostolakis, January 13th 1997.
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// --------------------------------------------------------------------
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#ifndef G4MAG_USUAL_EQRHS
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#define G4MAG_USUAL_EQRHS
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#include "G4Mag_EqRhs.hh"
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class G4MagneticField;
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class G4Mag_UsualEqRhs : public G4Mag_EqRhs
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{
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public: // with description
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G4Mag_UsualEqRhs( G4MagneticField* MagField );
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~G4Mag_UsualEqRhs();
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// Constructor and destructor. No actions.
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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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virtual void SetChargeMomentumMass( G4double particleCharge, // in e+ units
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G4double MomentumXc,
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G4double mass);
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private:
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G4double fInvCurrentMomentumXc; // This extra state enables us
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// to save a square root in a
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// critical method.
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};
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#endif /* G4MAG_USUAL_EQRHS */
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