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 ()
Protected Attributes
G4int	fCountCalls
G4int	fCountEvaluations

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Detailed Description

Definition at line 48 of file G4CachedMagneticField.hh.

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Constructor & Destructor Documentation

G4CachedMagneticField::G4CachedMagneticField	(	G4MagneticField *	,
		G4double	distanceConst
	)

Definition at line 33 of file G4CachedMagneticField.cc.

References ClearCounts().

  : 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

(

)

[virtual]

Definition at line 47 of file G4CachedMagneticField.cc.

{
}

G4CachedMagneticField::G4CachedMagneticField

(

const G4CachedMagneticField &

r

)

Definition at line 59 of file G4CachedMagneticField.cc.

References ClearCounts(), fDistanceConst, fLastLocation, fLastValue, and fpMagneticField.

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

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Member Function Documentation

void G4CachedMagneticField::ClearCounts

(

)

[inline]

Definition at line 68 of file G4CachedMagneticField.hh.

References fCountCalls, and fCountEvaluations.

Referenced by G4CachedMagneticField().

{ fCountCalls = 0; fCountEvaluations=0; }

G4double G4CachedMagneticField::GetConstDistance

(

)

const [inline]

Definition at line 63 of file G4CachedMagneticField.hh.

{ return fDistanceConst; } 

G4int G4CachedMagneticField::GetCountCalls

(

)

const [inline]

Definition at line 66 of file G4CachedMagneticField.hh.

References fCountCalls.

{ return fCountCalls; }

G4int G4CachedMagneticField::GetCountEvaluations

(

)

const [inline]

Definition at line 67 of file G4CachedMagneticField.hh.

References fCountEvaluations.

{ return fCountEvaluations; } 

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

Implements G4MagneticField.

Definition at line 75 of file G4CachedMagneticField.cc.

References fCountCalls, fCountEvaluations, and G4MagneticField::GetFieldValue().

{
  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] );
  }
}

G4CachedMagneticField & G4CachedMagneticField::operator=

(

const G4CachedMagneticField &

p

)

Definition at line 69 of file G4CachedMagneticField.cc.

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

void G4CachedMagneticField::ReportStatistics

(

)

Definition at line 52 of file G4CachedMagneticField.cc.

References fCountCalls, fCountEvaluations, G4cout, and G4endl.

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

void G4CachedMagneticField::SetConstDistance

(

G4double

dist

)

[inline]

Definition at line 64 of file G4CachedMagneticField.hh.

{ fDistanceConst= dist;}

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Field Documentation

G4int G4CachedMagneticField::fCountCalls [mutable, protected]

Definition at line 80 of file G4CachedMagneticField.hh.

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

G4int G4CachedMagneticField::fCountEvaluations [mutable, 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

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