VolumeBasedMagneticField Class Reference

#include <VolumeBasedMagneticField.h>

Inheritance diagram for VolumeBasedMagneticField:

Public Member Functions
virtual MagneticField *	clone () const
	Returns a shallow copy. More...
const MagVolume *	findVolume (const GlobalPoint &gp) const
GlobalVector	inTesla (const GlobalPoint &g) const
	Field value ad specified global point, in Tesla. More...
GlobalVector	inTeslaUnchecked (const GlobalPoint &g) const
bool	isDefined (const GlobalPoint &gp) const
	True if the point is within the region where the concrete field. More...
bool	isZSymmetric () const
	VolumeBasedMagneticField (int geomVersion, const std::vector< MagBLayer * > &theBLayers, const std::vector< MagESector * > &theESectors, const std::vector< MagVolume6Faces * > &theBVolumes, const std::vector< MagVolume6Faces * > &theEVolumes, float rMax, float zMax, const MagneticField *param=0, bool isParamFieldOwned=false)
	VolumeBasedMagneticField (const VolumeBasedMagneticField &vbf)
	Copy constructor implement a shallow copy (ie no ownership of actual engines) More...
virtual	~VolumeBasedMagneticField ()
Public Member Functions inherited from MagneticField
GlobalVector	inInverseGeV (const GlobalPoint &gp) const
	Field value ad specified global point, in 1/Gev. More...
GlobalVector	inKGauss (const GlobalPoint &gp) const
	Field value ad specified global point, in KGauss. More...
	MagneticField ()
	MagneticField (const MagneticField &orig)
int	nominalValue () const
	The nominal field value for this map in kGauss. More...
virtual	~MagneticField ()

Private Attributes
const MagGeometry *	field
bool	magGeomOwned
float	maxR
float	maxZ
const MagneticField *	paramField
bool	paramFieldOwned

Detailed Description

Field engine providing interpolation within the full CMS region.

Author

N. Amapane - CERN

Definition at line 14 of file VolumeBasedMagneticField.h.

Constructor & Destructor Documentation

VolumeBasedMagneticField::VolumeBasedMagneticField	(	int	geomVersion,
		const std::vector< MagBLayer * > &	theBLayers,
		const std::vector< MagESector * > &	theESectors,
		const std::vector< MagVolume6Faces * > &	theBVolumes,
		const std::vector< MagVolume6Faces * > &	theEVolumes,
		float	rMax,
		float	zMax,
		const MagneticField *	param = 0,
		bool	isParamFieldOwned = false
	)

Definition at line 4 of file VolumeBasedMagneticField.cc.

Referenced by clone().

                                                    : 
  field(new MagGeometry(geomVersion,theBLayers,theESectors,theBVolumes,theEVolumes)), 
  maxR(rMax),
  maxZ(zMax),
  paramField(param),
  magGeomOwned(true),
  paramFieldOwned(isParamFieldOwned)
{}

VolumeBasedMagneticField::~VolumeBasedMagneticField ( )

virtual

Definition at line 37 of file VolumeBasedMagneticField.cc.

References field, magGeomOwned, paramField, and paramFieldOwned.

                                                   {
  if(magGeomOwned) delete field;
  if(paramFieldOwned) delete paramField;
}

VolumeBasedMagneticField::VolumeBasedMagneticField

(

const VolumeBasedMagneticField &

vbf

)

Copy constructor implement a shallow copy (ie no ownership of actual engines)

Definition at line 21 of file VolumeBasedMagneticField.cc.

                                                                                      : 
  field(vbf.field),
  maxR(vbf.maxR),
  maxZ(vbf.maxZ),
  paramField(vbf.paramField),
  magGeomOwned(false),
  paramFieldOwned(false) {
  // std::cout << "VolumeBasedMagneticField::clone() (shallow copy)" << std::endl;
}

Member Function Documentation

MagneticField * VolumeBasedMagneticField::clone ( void  ) const

virtual

Returns a shallow copy.

Reimplemented from MagneticField.

Definition at line 32 of file VolumeBasedMagneticField.cc.

References VolumeBasedMagneticField().

                                                     {
  return new VolumeBasedMagneticField(*this);
}

const MagVolume * VolumeBasedMagneticField::findVolume

(

const GlobalPoint &

gp

)

const

Definition at line 60 of file VolumeBasedMagneticField.cc.

References field, and MagGeometry::findVolume().

Referenced by SteppingHelixPropagator::getNextState(), and SteppingHelixPropagator::loadState().

{
  return field->findVolume(gp);
}

GlobalVector VolumeBasedMagneticField::inTesla ( const GlobalPoint &  gp ) const

virtual

Field value ad specified global point, in Tesla.

Implements MagneticField.

Definition at line 42 of file VolumeBasedMagneticField.cc.

References field, MagGeometry::fieldInTesla(), MagneticField::inTeslaUnchecked(), isDefined(), MagneticField::isDefined(), and paramField.

Referenced by IsolatedPixelTrackCandidateProducer::beginRun().

                                                                           {

  // If parametrization of the inner region is available, use it.
  if (paramField && paramField->isDefined(gp)) return paramField->inTeslaUnchecked(gp);

  // If point is outside magfield map, return 0 field (not an error)
  if (!isDefined(gp))  return GlobalVector();

  return field->fieldInTesla(gp);
}

GlobalVector VolumeBasedMagneticField::inTeslaUnchecked ( const GlobalPoint &  gp ) const

virtual

Optional implementation that derived classes can implement to provide faster query by skipping the check to isDefined.

Reimplemented from MagneticField.

Definition at line 53 of file VolumeBasedMagneticField.cc.

References field, MagGeometry::fieldInTesla(), MagneticField::inTeslaUnchecked(), MagneticField::isDefined(), and paramField.

                                                                                  {
  //same as above, but do not check range
  if (paramField && paramField->isDefined(gp)) return paramField->inTeslaUnchecked(gp);
  return field->fieldInTesla(gp);
}

bool VolumeBasedMagneticField::isDefined ( const GlobalPoint &  gp ) const

virtual

True if the point is within the region where the concrete field.

Reimplemented from MagneticField.

Definition at line 66 of file VolumeBasedMagneticField.cc.

References maxR, maxZ, PV3DBase< T, PVType, FrameType >::perp(), and PV3DBase< T, PVType, FrameType >::z().

Referenced by inTesla().

                                                                    {
  return (fabs(gp.z()) < maxZ && gp.perp() < maxR);
}

bool VolumeBasedMagneticField::isZSymmetric

(

)

const

Definition at line 71 of file VolumeBasedMagneticField.cc.

References field, and MagGeometry::isZSymmetric().

                                                  {
  return field->isZSymmetric();
}

Member Data Documentation

const MagGeometry* VolumeBasedMagneticField::field

private

Definition at line 45 of file VolumeBasedMagneticField.h.

Referenced by findVolume(), inTesla(), inTeslaUnchecked(), isZSymmetric(), and ~VolumeBasedMagneticField().

bool VolumeBasedMagneticField::magGeomOwned

private

Definition at line 49 of file VolumeBasedMagneticField.h.

Referenced by ~VolumeBasedMagneticField().

float VolumeBasedMagneticField::maxR

private

Definition at line 46 of file VolumeBasedMagneticField.h.

Referenced by isDefined().

float VolumeBasedMagneticField::maxZ

private

Definition at line 47 of file VolumeBasedMagneticField.h.

Referenced by isDefined().

const MagneticField* VolumeBasedMagneticField::paramField

private

Definition at line 48 of file VolumeBasedMagneticField.h.

Referenced by inTesla(), inTeslaUnchecked(), and ~VolumeBasedMagneticField().

bool VolumeBasedMagneticField::paramFieldOwned

private

Definition at line 50 of file VolumeBasedMagneticField.h.

Referenced by ~VolumeBasedMagneticField().