dd4hep::rec::MaterialManager Class Reference

#include <MaterialManager.h>

Classes
class	ScanData

Public Member Functions
	MaterialManager (Volume world)
	Instantiate the MaterialManager for this (world) volume. More...
	MaterialManager ()=delete
	~MaterialManager ()
const MaterialVec &	materialsBetween (const Vector3D &p0, const Vector3D &p1, double eps=MaterialManager::epsilon)
const ScanData	entriesBetween (const Vector3D &p0, const Vector3D &p1, double eps=MaterialManager::epsilon)
	As above, but optionally allow access to traversed placements. More...
const PlacementVec &	placementsBetween (const Vector3D &p0, const Vector3D &p1, double eps=MaterialManager::epsilon)
const Material &	materialAt (const Vector3D &pos)
PlacedVolume	placementAt (const Vector3D &pos)
MaterialData	createAveragedMaterial (const MaterialVec &materials)

Static Public Attributes
static constexpr const double	epsilon = 1e-4

Protected Attributes
MaterialVec	_mV
	Cached materials. More...
Material	_m
PlacedVolume	_pv
	Cached nodes. More...
PlacementVec	_placeV
Vector3D	_p0
	cached last points More...
Vector3D	_p1
Vector3D	_pos
TGeoManager *	_tgeoMgr
	Reference to the TGeoManager. More...

Detailed Description

Material manager provides access to the material properties of the detector. Material can be accessed either for a given point or as a list of materials along a straight line between two points.

Author

F.Gaede, DESY

Date

May, 19 2014

Version

$Id:$

Definition at line 41 of file MaterialManager.h.

Constructor & Destructor Documentation

MaterialManager() [1/2]

dd4hep::rec::MaterialManager::MaterialManager

(

Volume

world

)

Instantiate the MaterialManager for this (world) volume.

Definition at line 27 of file MaterialManager.cpp.

MaterialManager() [2/2]

dd4hep::rec::MaterialManager::MaterialManager ( )

delete

~MaterialManager()

dd4hep::rec::MaterialManager::~MaterialManager

(

)

Definition at line 31 of file MaterialManager.cpp.

Member Function Documentation

createAveragedMaterial()

MaterialData dd4hep::rec::MaterialManager::createAveragedMaterial

(

const MaterialVec &

materials

)

Create a material with averaged properties from all materials in the list. A and Z are averaged by relative number of atoms(molecules), rho is averaged by relative volume and the inverse radiation and interaction lengths are averaged by relative weight.

Definition at line 208 of file MaterialManager.cpp.

entriesBetween()

const MaterialManager::ScanData dd4hep::rec::MaterialManager::entriesBetween	(	const Vector3D &	p0,
		const Vector3D &	p1,
		double	eps = MaterialManager::epsilon
	)

As above, but optionally allow access to traversed placements.

Definition at line 40 of file MaterialManager.cpp.

materialAt()

const Material & dd4hep::rec::MaterialManager::materialAt

(

const Vector3D &

pos

)

Get the material at the given position.

Definition at line 178 of file MaterialManager.cpp.

materialsBetween()

const MaterialVec & dd4hep::rec::MaterialManager::materialsBetween	(	const Vector3D &	p0,
		const Vector3D &	p1,
		double	eps = MaterialManager::epsilon
	)

Get a vector with all the materials between the two points p0 and p1 with the corresponding thicknesses - element type is std::pair< Material, double >. Materials with a thickness smaller than epsilon (default 1e-4=1mu) are ignored. Avoid calling this method in inner loops as the computation is not cheap. Ideally the result should be cached, for example as an averaged material

See also

createAveragedMaterial().

Definition at line 47 of file MaterialManager.cpp.

placementAt()

PlacedVolume dd4hep::rec::MaterialManager::placementAt

(

const Vector3D &

pos

)

Get the placed volume at the given position.

Definition at line 193 of file MaterialManager.cpp.

placementsBetween()

const PlacementVec & dd4hep::rec::MaterialManager::placementsBetween	(	const Vector3D &	p0,
		const Vector3D &	p1,
		double	eps = MaterialManager::epsilon
	)

Get a vector with all the placements between the two points p0 and p1

Definition at line 35 of file MaterialManager.cpp.

Member Data Documentation

_m

Material dd4hep::rec::MaterialManager::_m

protected

Definition at line 99 of file MaterialManager.h.

_mV

MaterialVec dd4hep::rec::MaterialManager::_mV

protected

Cached materials.

Definition at line 98 of file MaterialManager.h.

_p0

Vector3D dd4hep::rec::MaterialManager::_p0

protected

cached last points

Definition at line 104 of file MaterialManager.h.

_p1

Vector3D dd4hep::rec::MaterialManager::_p1

protected

Definition at line 104 of file MaterialManager.h.

_placeV

PlacementVec dd4hep::rec::MaterialManager::_placeV

protected

Definition at line 102 of file MaterialManager.h.

_pos

Vector3D dd4hep::rec::MaterialManager::_pos

protected

Definition at line 104 of file MaterialManager.h.

_pv

PlacedVolume dd4hep::rec::MaterialManager::_pv

protected

Cached nodes.

Definition at line 101 of file MaterialManager.h.

_tgeoMgr

TGeoManager* dd4hep::rec::MaterialManager::_tgeoMgr

protected

Reference to the TGeoManager.

Definition at line 106 of file MaterialManager.h.

epsilon

constexpr const double dd4hep::rec::MaterialManager::epsilon = 1e-4

staticconstexpr

Definition at line 44 of file MaterialManager.h.

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

• DDRec/include/DDRec/MaterialManager.h
• DDRec/src/MaterialManager.cpp