G4FieldManager Class Reference

#include <G4FieldManager.hh>

Public Member Functions
	G4FieldManager (G4Field *detectorField=0, G4ChordFinder *pChordFinder=0, G4bool b=true)
	G4FieldManager (G4MagneticField *detectorMagneticField)
virtual	~G4FieldManager ()
G4bool	SetDetectorField (G4Field *detectorField)
const G4Field *	GetDetectorField () const
G4bool	DoesFieldExist () const
void	CreateChordFinder (G4MagneticField *detectorMagField)
void	SetChordFinder (G4ChordFinder *aChordFinder)
G4ChordFinder *	GetChordFinder ()
const G4ChordFinder *	GetChordFinder () const
virtual void	ConfigureForTrack (const G4Track *)
G4double	GetDeltaIntersection () const
G4double	GetDeltaOneStep () const
void	SetAccuraciesWithDeltaOneStep (G4double valDeltaOneStep)
void	SetDeltaOneStep (G4double valueD1step)
void	SetDeltaIntersection (G4double valueDintersection)
G4double	GetMinimumEpsilonStep () const
void	SetMinimumEpsilonStep (G4double newEpsMin)
G4double	GetMaximumEpsilonStep () const
void	SetMaximumEpsilonStep (G4double newEpsMax)
G4bool	DoesFieldChangeEnergy () const
void	SetFieldChangesEnergy (G4bool value)
virtual G4FieldManager *	Clone () const

Detailed Description

Definition at line 83 of file G4FieldManager.hh.

Constructor & Destructor Documentation

G4FieldManager::G4FieldManager	(	G4Field *	detectorField = 0,
		G4ChordFinder *	pChordFinder = 0,
		G4bool	b = true
	)

Definition at line 37 of file G4FieldManager.cc.

   : fDetectorField(detectorField), 
     fChordFinder(pChordFinder), 
     fAllocatedChordFinder(false),
     fEpsilonMinDefault(5.0e-5), 
     fEpsilonMaxDefault(0.001),
     fDefault_Delta_One_Step_Value(0.01),    // mm
     fDefault_Delta_Intersection_Val(0.001), // mm
     fEpsilonMin( fEpsilonMinDefault ),
     fEpsilonMax( fEpsilonMaxDefault)
{ 
   fDelta_One_Step_Value= fDefault_Delta_One_Step_Value;
   fDelta_Intersection_Val= fDefault_Delta_Intersection_Val;
   if ( detectorField )
     fFieldChangesEnergy= detectorField->DoesFieldChangeEnergy();
   else
     fFieldChangesEnergy= fieldChangesEnergy;

   // Add to store
   G4FieldManagerStore::Register(this);
}

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G4FieldManager::G4FieldManager

(

G4MagneticField *

detectorMagneticField

)

Definition at line 62 of file G4FieldManager.cc.

   : fDetectorField(detectorField), fAllocatedChordFinder(true),
     fEpsilonMinDefault(5.0e-5), 
     fEpsilonMaxDefault(0.001),
     fFieldChangesEnergy(false), 
     fDefault_Delta_One_Step_Value(0.01),    // mm
     fDefault_Delta_Intersection_Val(0.001), // mm
     fEpsilonMin( fEpsilonMinDefault ),
     fEpsilonMax( fEpsilonMaxDefault)
{
   fChordFinder= new G4ChordFinder( detectorField );
   fDelta_One_Step_Value= fDefault_Delta_One_Step_Value;
   fDelta_Intersection_Val= fDefault_Delta_Intersection_Val;
   // Add to store
   G4FieldManagerStore::Register(this);
}

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G4FieldManager::~G4FieldManager ( )

virtual

Definition at line 132 of file G4FieldManager.cc.

{
   if( fAllocatedChordFinder ){
      delete fChordFinder;
   }
   G4FieldManagerStore::DeRegister(this);
}

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Member Function Documentation

G4FieldManager * G4FieldManager::Clone ( ) const

virtual

Definition at line 79 of file G4FieldManager.cc.

{
    G4Field* aField = 0;
    G4FieldManager* aFM = 0;
    G4ChordFinder* aCF = 0;
    try {
        if ( this->fDetectorField )
            aField = this->fDetectorField->Clone();

        //Create a new field manager, note that we do not set any chordfinder now.
        aFM = new G4FieldManager( aField , 0 , this->fFieldChangesEnergy );

        //Check if orignally we have the fAllocatedChordFinder variable set, in case, call chord
        //constructor
        if ( this->fAllocatedChordFinder )
        {
            aFM->CreateChordFinder( dynamic_cast<G4MagneticField*>(aField) );
        }
        else
        {
            //Chord was specified by user, should we clone?
            //TODO: For the moment copy pointer, to be understood if cloning of ChordFinder is needed
            aCF = this->fChordFinder;/*->Clone*/
            aFM->fChordFinder = aCF;
        }
        //Copy values of other variables
        aFM->fEpsilonMax = this->fEpsilonMax;
        aFM->fEpsilonMin = this->fEpsilonMin;
        aFM->fDefault_Delta_Intersection_Val = this->fDefault_Delta_Intersection_Val;
        aFM->fDefault_Delta_One_Step_Value = this->fDefault_Delta_One_Step_Value;
        aFM->fDelta_Intersection_Val = this->fDelta_Intersection_Val;
        aFM->fDelta_One_Step_Value = this->fDelta_One_Step_Value;
        //TODO: Should we really add to the store the cloned FM? Who will use this?
    }
    catch ( ... )
    {
        //Failed creating clone: probably user did not implement Clone method
        //in derived classes?
        //Perform clean-up after ourselves...
        delete aField;
        delete aFM;
        delete aCF;
        throw;
    }
    return aFM;
}

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void G4FieldManager::ConfigureForTrack ( const G4Track *  )

virtual

Definition at line 126 of file G4FieldManager.cc.

{
   // Default is to do nothing!
   ;
}

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void G4FieldManager::CreateChordFinder

(

G4MagneticField *

detectorMagField

)

Definition at line 141 of file G4FieldManager.cc.

{
   if ( fAllocatedChordFinder )
      delete fChordFinder;
   fChordFinder= new G4ChordFinder( detectorMagField );
   fAllocatedChordFinder= true;
}

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G4bool G4FieldManager::DoesFieldChangeEnergy ( ) const

inline

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G4bool G4FieldManager::DoesFieldExist ( ) const

inline

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G4ChordFinder* G4FieldManager::GetChordFinder ( )

inline

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const G4ChordFinder* G4FieldManager::GetChordFinder ( ) const

inline

G4double G4FieldManager::GetDeltaIntersection ( ) const

inline

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G4double G4FieldManager::GetDeltaOneStep ( ) const

inline

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const G4Field* G4FieldManager::GetDetectorField ( ) const

inline

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G4double G4FieldManager::GetMaximumEpsilonStep ( ) const

inline

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G4double G4FieldManager::GetMinimumEpsilonStep ( ) const

inline

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void G4FieldManager::SetAccuraciesWithDeltaOneStep ( G4double  valDeltaOneStep )

inline

void G4FieldManager::SetChordFinder ( G4ChordFinder *  aChordFinder )

inline

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void G4FieldManager::SetDeltaIntersection ( G4double  valueDintersection )

inline

void G4FieldManager::SetDeltaOneStep ( G4double  valueD1step )

inline

G4bool G4FieldManager::SetDetectorField

(

G4Field *

detectorField

)

Definition at line 149 of file G4FieldManager.cc.

{
   fDetectorField= pDetectorField;

   if ( pDetectorField )
     fFieldChangesEnergy= pDetectorField->DoesFieldChangeEnergy();
   else
     fFieldChangesEnergy= false;   //  No field 

   return false;
}

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void G4FieldManager::SetFieldChangesEnergy ( G4bool  value )

inline

void G4FieldManager::SetMaximumEpsilonStep ( G4double  newEpsMax )

inline

void G4FieldManager::SetMinimumEpsilonStep ( G4double  newEpsMin )

inline

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The documentation for this class was generated from the following files:

• geant4.10.03.p01/source/geometry/magneticfield/include/G4FieldManager.hh
• geant4.10.03.p01/source/geometry/magneticfield/src/G4FieldManager.cc