G4CachedMagneticField Class Reference

#include <G4CachedMagneticField.hh>

Inheritance diagram for G4CachedMagneticField:

Public Member Functions
	G4CachedMagneticField (G4MagneticField *, G4double distanceConst)
virtual	~G4CachedMagneticField ()
	G4CachedMagneticField (const G4CachedMagneticField &r)
G4CachedMagneticField &	operator= (const G4CachedMagneticField &p)
virtual void	GetFieldValue (const G4double Point[4], G4double *Bfield) const
G4double	GetConstDistance () const
void	SetConstDistance (G4double dist)
G4int	GetCountCalls () const
G4int	GetCountEvaluations () const
void	ClearCounts ()
void	ReportStatistics ()
Public Member Functions inherited from G4MagneticField
	G4MagneticField ()
virtual	~G4MagneticField ()
	G4MagneticField (const G4MagneticField &r)
G4MagneticField &	operator= (const G4MagneticField &p)
G4bool	DoesFieldChangeEnergy () const
virtual void	GetFieldValue (const G4double Point[4], G4double *Bfield) const =0
Public Member Functions inherited from G4ElectroMagneticField
	G4ElectroMagneticField ()
virtual	~G4ElectroMagneticField ()
	G4ElectroMagneticField (const G4ElectroMagneticField &r)
G4ElectroMagneticField &	operator= (const G4ElectroMagneticField &p)
virtual void	GetFieldValue (const G4double Point[4], G4double *Bfield) const =0
virtual G4bool	DoesFieldChangeEnergy () const =0
Public Member Functions inherited from G4Field
virtual void	GetFieldValue (const double Point[4], double *fieldArr) const =0
	G4Field (G4bool gravityOn=false)
	G4Field (const G4Field &)
virtual	~G4Field ()
G4Field &	operator= (const G4Field &p)
virtual G4bool	DoesFieldChangeEnergy () const =0
G4bool	IsGravityActive () const
void	SetGravityActive (G4bool OnOffFlag)

Protected Attributes
G4int	fCountCalls
G4int	fCountEvaluations

Detailed Description

Definition at line 48 of file G4CachedMagneticField.hh.

Constructor & Destructor Documentation

G4CachedMagneticField() [1/2]

G4CachedMagneticField::G4CachedMagneticField	(	G4MagneticField *	pMagField,
		G4double	distanceConst
	)

Definition at line 33 of file G4CachedMagneticField.cc.

  : G4MagneticField(), 
    fLastLocation(DBL_MAX,DBL_MAX,DBL_MAX),
    fLastValue(DBL_MAX,DBL_MAX,DBL_MAX),
    fCountCalls(0),  fCountEvaluations(0)
{
  fpMagneticField=     pMagField;
  fDistanceConst= distance;
 
  // G4cout << " Cached-B-Field constructor> Distance = " << distance << G4endl;
  this->ClearCounts(); 
}

~G4CachedMagneticField()

G4CachedMagneticField::~G4CachedMagneticField ( )

virtual

Definition at line 47 of file G4CachedMagneticField.cc.

{
}

G4CachedMagneticField() [2/2]

G4CachedMagneticField::G4CachedMagneticField

(

const G4CachedMagneticField &

r

)

Definition at line 59 of file G4CachedMagneticField.cc.

  : G4MagneticField()
{
  fpMagneticField=      rightCMF.fpMagneticField;
  fDistanceConst = rightCMF.fDistanceConst;
  fLastLocation  = rightCMF.fLastLocation;
  fLastValue     = rightCMF.fLastValue;
  this->ClearCounts(); 
}

Member Function Documentation

ClearCounts()

void G4CachedMagneticField::ClearCounts ( )

inline

Definition at line 68 of file G4CachedMagneticField.hh.

{ fCountCalls = 0; fCountEvaluations=0; }

Referenced by G4CachedMagneticField().

GetConstDistance()

G4double G4CachedMagneticField::GetConstDistance ( ) const

inline

Definition at line 63 of file G4CachedMagneticField.hh.

{ return fDistanceConst; } 

GetCountCalls()

G4int G4CachedMagneticField::GetCountCalls ( ) const

inline

Definition at line 66 of file G4CachedMagneticField.hh.

{ return fCountCalls; }

GetCountEvaluations()

G4int G4CachedMagneticField::GetCountEvaluations ( ) const

inline

Definition at line 67 of file G4CachedMagneticField.hh.

{ return fCountEvaluations; } 

GetFieldValue()

void G4CachedMagneticField::GetFieldValue ( const G4double  Point[4], G4double *  Bfield  ) const

virtual

Implements G4MagneticField.

Definition at line 75 of file G4CachedMagneticField.cc.

{
  G4ThreeVector newLocation( Point[0], Point[1], Point[2] );
 
  // G4cout << "Cache-B-field called at " << newLocation << G4endl;
 
  G4double      distSq= (newLocation-fLastLocation).mag2();
  fCountCalls++;
  if( distSq < fDistanceConst*fDistanceConst ) { 
     Bfield[0] = fLastValue.x();
     Bfield[1] = fLastValue.y();
     Bfield[2] = fLastValue.z();
  }else{
     // G4CachedMagneticField* thisNonC= const_cast<G4CachedMagneticField*>(this);
     fpMagneticField->GetFieldValue( Point, Bfield );
     // G4cout << " Evaluating. " << G4endl;
     fCountEvaluations++;
     // thisNonC->
     fLastLocation= G4ThreeVector( Point[0],  Point[1],  Point[2] );
     // thisNonC->
     fLastValue=    G4ThreeVector( Bfield[0], Bfield[1], Bfield[2] );
  }
}

operator=()

G4CachedMagneticField & G4CachedMagneticField::operator=

(

const G4CachedMagneticField &

p

)

Definition at line 69 of file G4CachedMagneticField.cc.

{
  if (&p == this) return *this; *this = p; return *this;
}

ReportStatistics()

void G4CachedMagneticField::ReportStatistics

(

)

Definition at line 52 of file G4CachedMagneticField.cc.

{
  G4cout << " Cached field: " << G4endl
     << "   Number of calls:        " << fCountCalls << G4endl
     << "   Number of evaluations : " << fCountEvaluations << G4endl;                     
}

SetConstDistance()

void G4CachedMagneticField::SetConstDistance ( G4double  dist )

inline

Definition at line 64 of file G4CachedMagneticField.hh.

{ fDistanceConst= dist;}

Member Data Documentation

fCountCalls

G4int G4CachedMagneticField::fCountCalls

mutableprotected

Definition at line 80 of file G4CachedMagneticField.hh.

Referenced by ClearCounts(), GetCountCalls(), GetFieldValue(), and ReportStatistics().

fCountEvaluations

G4int G4CachedMagneticField::fCountEvaluations

protected

Definition at line 80 of file G4CachedMagneticField.hh.

Referenced by ClearCounts(), GetCountEvaluations(), GetFieldValue(), and ReportStatistics().

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

• G4CachedMagneticField.hh
• G4CachedMagneticField.cc