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geant4/examples/extended/field/field01/include/F01StepCut.hh
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2016-06-09 12:11:21 +02:00

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//
// ********************************************************************
// * DISCLAIMER *
// * *
// * The following disclaimer summarizes all the specific disclaimers *
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// * govern, are listed with their locations in: *
// * http://cern.ch/geant4/license *
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// * institutes,nor the agencies providing financial support for this *
// * work make any representation or warranty, express or implied, *
// * regarding this software system or assume any liability for its *
// * use. *
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// * This code implementation is the intellectual property of the *
// * GEANT4 collaboration. *
// * By copying, distributing or modifying the Program (or any work *
// * based on the Program) you indicate your acceptance of this *
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//
// $Id: F01StepCut.hh,v 1.4 2003/06/25 17:40:46 gcosmo Exp $
// GEANT4 tag $Name: geant4-07-01 $
//
//
#ifndef F01StepCut_h
#define F01StepCut_h 1
#include "G4ios.hh"
#include "globals.hh"
#include "G4VDiscreteProcess.hh"
#include "G4Step.hh"
class F01StepCut : public G4VDiscreteProcess
{
public:
F01StepCut(const G4String& processName ="UserStepCut" );
F01StepCut(F01StepCut &);
~F01StepCut();
G4double PostStepGetPhysicalInteractionLength(
const G4Track& track,
G4double previousStepSize,
G4ForceCondition* condition
);
G4VParticleChange* PostStepDoIt(
const G4Track& ,
const G4Step&
);
void SetMaxStep(G4double);
protected:
// it is not needed here !
G4double GetMeanFreePath(const G4Track& aTrack,
G4double previousStepSize,
G4ForceCondition* condition
);
private:
// hide assignment operator as private
F01StepCut & operator=(const F01StepCut &right);
private:
G4double MaxChargedStep ;
};
// inlined function members implementation
#include "G4Step.hh"
#include "G4Track.hh"
#include "G4UserLimits.hh"
#include "G4VParticleChange.hh"
#include "G4EnergyLossTables.hh"
inline G4double F01StepCut::PostStepGetPhysicalInteractionLength(
const G4Track& aTrack,
G4double,
G4ForceCondition* condition)
{
// condition is set to "Not Forced"
*condition = NotForced;
G4double ProposedStep = DBL_MAX;
if((MaxChargedStep > 0.) &&
(aTrack.GetVolume() != 0) &&
(aTrack.GetVolume()->GetName() == "Absorber") &&
(aTrack.GetDynamicParticle()->GetDefinition()->GetPDGCharge() != 0.))
ProposedStep = MaxChargedStep ;
return ProposedStep;
}
inline G4VParticleChange* F01StepCut::PostStepDoIt(
const G4Track& aTrack,
const G4Step&
)
{
// do nothing
aParticleChange.Initialize(aTrack);
return &aParticleChange;
}
inline G4double F01StepCut::GetMeanFreePath(const G4Track&,
G4double,
G4ForceCondition*)
{
return 0.;
}
#endif