BFieldMap Class Reference

This class represents the magnetic field of the Belle II detector. More...

#include <BFieldMap.h>

Public Member Functions
template<class BFIELDCOMP >
BFIELDCOMP &	addBFieldComponent ()
	Adds a new BField component to the Belle II magnetic field.
void	initialize ()
	Initialize the magnetic field after adding all components.
void	clear ()
	Clear the existing components.

Static Public Member Functions
static BFieldMap &	Instance ()
	Static method to get a reference to the BFieldMap instance.

Protected Attributes
std::list< BFieldComponentAbs * >	m_components
	The components of the magnetic field.

Private Member Functions
ROOT::Math::XYZVector	getBField (const ROOT::Math::XYZVector &point) const
	Returns the magnetic field of the Belle II detector at the specified space point.
	BFieldMap ()
	The constructor is hidden to avoid that someone creates an instance of this class.
	BFieldMap (const BFieldMap &)
	Disable/Hide the copy constructor.
BFieldMap &	operator= (const BFieldMap &)
	Disable/Hide the copy assignment operator.
virtual	~BFieldMap ()
	The destructor of the BFieldMap class.

Private Attributes
bool	m_isMapInitialized
	If false the map hasn't been initialized yet.

Friends
struct	std::default_delete< BFieldMap >
	allow destruction of instance
class	BFieldFrameworkInterface
	only allow lookup by framework payload interface from now on

Detailed Description

This class represents the magnetic field of the Belle II detector.

Its main method is getBField() which returns the Bfield vector at the specified space point.

It is designed as a singleton.

Definition at line 30 of file BFieldMap.h.

Constructor & Destructor Documentation

BFieldMap()

BFieldMap ( )

private

The constructor is hidden to avoid that someone creates an instance of this class.

Definition at line 44 of file BFieldMap.cc.

                     : m_isMapInitialized(false)
{
 
}

~BFieldMap()

~BFieldMap ( )

privatevirtual

The destructor of the BFieldMap class.

Definition at line 49 of file BFieldMap.cc.

{
  if (m_isMapInitialized) {
    //Delete the magnetic field components by calling their terminate() method and freeing their memory.
    for (BFieldComponentAbs* comp : m_components) {
      comp->terminate();
      delete comp;
    }
  }
}

Member Function Documentation

clear()

void clear

(

)

Clear the existing components.

Definition at line 33 of file BFieldMap.cc.

{
  m_isMapInitialized = false;
  for (auto ptr : m_components) delete ptr;
  m_components.clear();
}

initialize()

void initialize

(

)

Initialize the magnetic field after adding all components.

Definition at line 21 of file BFieldMap.cc.

{
  if (!m_isMapInitialized) {
    for (BFieldComponentAbs* comp : m_components) {
      comp->initialize();
    }
 
    m_isMapInitialized = true;
    B2DEBUG(10, "The magnetic field map has been initialized.");
  }
}

Instance()

BFieldMap & Instance ( )

static

Static method to get a reference to the BFieldMap instance.

Returns

A reference to an instance of this class.

Definition at line 15 of file BFieldMap.cc.

{
  static std::unique_ptr<BFieldMap> instance(new BFieldMap());
  return *instance;
}

Friends And Related Function Documentation

BFieldFrameworkInterface

friend class BFieldFrameworkInterface

friend

only allow lookup by framework payload interface from now on

Definition at line 91 of file BFieldMap.h.

std::default_delete< BFieldMap >

friend struct std::default_delete< BFieldMap >

friend

allow destruction of instance

Definition at line 86 of file BFieldMap.h.

Member Data Documentation

m_components

std::list<BFieldComponentAbs*> m_components

protected

The components of the magnetic field.

Definition at line 69 of file BFieldMap.h.

m_isMapInitialized

bool m_isMapInitialized

private

If false the map hasn't been initialized yet.

Definition at line 74 of file BFieldMap.h.

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

• geometry/bfieldmap/include/BFieldMap.h
• geometry/bfieldmap/src/BFieldMap.cc