dd4hep::rec::MaterialManager Class Reference

Material manager provides access to the material properties of the detector. More...

#include <MaterialManager.h>

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 epsilon=1e-4)
	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 >. More...
const PlacementVec &	placementsBetween (const Vector3D &p0, const Vector3D &p1, double epsilon=1e-4)
	Get a vector with all the placements between the two points p0 and p1. More...
const Material &	materialAt (const Vector3D &pos)
	Get the material at the given position. More...
PlacedVolume	placementAt (const Vector3D &pos)
	Get the placed volume at the given position. More...
MaterialData	createAveragedMaterial (const MaterialVec &materials)
	Create a material with averaged properties from all materials in the list. More...

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

dd4hep::rec::MaterialManager::MaterialManager

(

Volume

world

)

Instantiate the MaterialManager for this (world) volume.

Definition at line 27 of file MaterialManager.cpp.

References _tgeoMgr.

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

delete

dd4hep::rec::MaterialManager::~MaterialManager

(

)

Definition at line 31 of file MaterialManager.cpp.

Member Function Documentation

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 196 of file MaterialManager.cpp.

References std::vector< T >::size(), and std::stringstream::str().

Referenced by dd4hep::rec::createGearForILD().

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

(

const Vector3D &

pos

)

Get the material at the given position.

Definition at line 166 of file MaterialManager.cpp.

References _m, _pos, _pv, _tgeoMgr, and std::stringstream::str().

const MaterialVec & dd4hep::rec::MaterialManager::materialsBetween	(	const Vector3D &	p0,
		const Vector3D &	p1,
		double	epsilon = 1e-4
	)

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 40 of file MaterialManager.cpp.

References _mV, _p0, _p1, _placeV, _tgeoMgr, std::vector< T >::clear(), std::vector< T >::emplace_back(), std::vector< T >::empty(), and MINSTEP.

Referenced by dd4hep::rec::createGearForILD(), and placementsBetween().

PlacedVolume dd4hep::rec::MaterialManager::placementAt

(

const Vector3D &

pos

)

Get the placed volume at the given position.

Definition at line 181 of file MaterialManager.cpp.

References _m, _pos, _pv, _tgeoMgr, and std::stringstream::str().

const PlacementVec & dd4hep::rec::MaterialManager::placementsBetween	(	const Vector3D &	p0,
		const Vector3D &	p1,
		double	epsilon = 1e-4
	)

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

Definition at line 35 of file MaterialManager.cpp.

References _placeV, and materialsBetween().

Member Data Documentation

Material dd4hep::rec::MaterialManager::_m

protected

Definition at line 84 of file MaterialManager.h.

Referenced by materialAt(), and placementAt().

MaterialVec dd4hep::rec::MaterialManager::_mV

protected

Cached materials.

Definition at line 83 of file MaterialManager.h.

Referenced by materialsBetween().

Vector3D dd4hep::rec::MaterialManager::_p0

protected

cached last points

Definition at line 89 of file MaterialManager.h.

Referenced by materialsBetween().

Vector3D dd4hep::rec::MaterialManager::_p1

protected

Definition at line 89 of file MaterialManager.h.

Referenced by materialsBetween().

PlacementVec dd4hep::rec::MaterialManager::_placeV

protected

Definition at line 87 of file MaterialManager.h.

Referenced by materialsBetween(), and placementsBetween().

Vector3D dd4hep::rec::MaterialManager::_pos

protected

Definition at line 89 of file MaterialManager.h.

Referenced by materialAt(), and placementAt().

PlacedVolume dd4hep::rec::MaterialManager::_pv

protected

Cached nodes.

Definition at line 86 of file MaterialManager.h.

Referenced by materialAt(), and placementAt().

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

protected

Reference to the TGeoManager.

Definition at line 91 of file MaterialManager.h.

Referenced by materialAt(), MaterialManager(), materialsBetween(), and placementAt().

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

• /afs/desy.de/user/d/dudarboh/iLCSoft/DD4hep/DDRec/include/DDRec/MaterialManager.h
• /afs/desy.de/user/d/dudarboh/iLCSoft/DD4hep/DDRec/src/MaterialManager.cpp