VolumeBasedMagneticField Class Reference

#include <VolumeBasedMagneticField.h>

Inheritance diagram for VolumeBasedMagneticField:

List of all members.

Public Member Functions
virtual MagneticField *	clone () const
	Returns a shallow copy.
const MagVolume *	findVolume (const GlobalPoint &gp) const
GlobalVector	inTesla (const GlobalPoint &g) const
	Field value ad specified global point, in Tesla.
GlobalVector	inTeslaUnchecked (const GlobalPoint &g) const
bool	isDefined (const GlobalPoint &gp) const
	True if the point is within the region where the concrete field.
bool	isZSymmetric () const
virtual int	nominalValue () const
	The nominal field value for this map in kGauss.
	VolumeBasedMagneticField (const edm::ParameterSet &config, std::vector< MagBLayer * > theBLayers, std::vector< MagESector * > theESectors, std::vector< MagVolume6Faces * > theBVolumes, 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)
virtual	~VolumeBasedMagneticField ()
Private Attributes
const MagGeometry *	field
bool	magGeomOwned
float	maxR
float	maxZ
const MagneticField *	paramField
bool	paramFieldOwned
int	theNominalValue

---

Detailed Description

Field engine providing interpolation within the full CMS region.

Date:

2009/05/23 22:21:34

Revision:

1.9

Author:

N. Amapane - CERN

Definition at line 16 of file VolumeBasedMagneticField.h.

---

Constructor & Destructor Documentation

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

Definition at line 5 of file VolumeBasedMagneticField.cc.

References nominalValue(), and theNominalValue.

Referenced by clone().

                                                                            : 
  field(new MagGeometry(config,theBLayers,theESectors,theBVolumes,theEVolumes)), 
  maxR(rMax),
  maxZ(zMax),
  paramField(param),
  magGeomOwned(true),
  paramFieldOwned(isParamFieldOwned)
{ 
  theNominalValue = MagneticField::nominalValue();
}

VolumeBasedMagneticField::~VolumeBasedMagneticField

(

)

[virtual]

Definition at line 41 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 24 of file VolumeBasedMagneticField.cc.

                                                                                      : 
  field(vbf.field),
  maxR(vbf.maxR),
  maxZ(vbf.maxZ),
  paramField(vbf.paramField),
  magGeomOwned(false),
  paramFieldOwned(false),
  theNominalValue(vbf.theNominalValue) {
  // 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 36 of file VolumeBasedMagneticField.cc.

References VolumeBasedMagneticField().

                                                     {
  return new VolumeBasedMagneticField(*this);
}

const MagVolume * VolumeBasedMagneticField::findVolume

(

const GlobalPoint &

gp

)

const

Definition at line 64 of file VolumeBasedMagneticField.cc.

References field, and MagGeometry::findVolume().

Referenced by NavPropagator::findVolume(), 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 46 of file VolumeBasedMagneticField.cc.

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

Referenced by IsolatedPixelTrackCandidateProducer::GetEtaPhiAtEcal().

                                                                           {

  // 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 57 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 70 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 75 of file VolumeBasedMagneticField.cc.

References field, and MagGeometry::isZSymmetric().

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

                                                  {
  return field->isZSymmetric();
}

virtual int VolumeBasedMagneticField::nominalValue

(

)

const [inline, virtual]

The nominal field value for this map in kGauss.

Reimplemented from MagneticField.

Definition at line 45 of file VolumeBasedMagneticField.h.

References theNominalValue.

Referenced by VolumeBasedMagneticField().

                                   {
    return theNominalValue;
  }

---

Member Data Documentation

const MagGeometry* VolumeBasedMagneticField::field [private]

Definition at line 51 of file VolumeBasedMagneticField.h.

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

bool VolumeBasedMagneticField::magGeomOwned [private]

Definition at line 55 of file VolumeBasedMagneticField.h.

Referenced by ~VolumeBasedMagneticField().

float VolumeBasedMagneticField::maxR [private]

Definition at line 52 of file VolumeBasedMagneticField.h.

Referenced by isDefined().

float VolumeBasedMagneticField::maxZ [private]

Definition at line 53 of file VolumeBasedMagneticField.h.

Referenced by isDefined().

const MagneticField* VolumeBasedMagneticField::paramField [private]

Definition at line 54 of file VolumeBasedMagneticField.h.

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

bool VolumeBasedMagneticField::paramFieldOwned [private]

Definition at line 56 of file VolumeBasedMagneticField.h.

Referenced by ~VolumeBasedMagneticField().

int VolumeBasedMagneticField::theNominalValue [private]

Definition at line 57 of file VolumeBasedMagneticField.h.

Referenced by nominalValue(), and VolumeBasedMagneticField().