Use to keep particles with at least part of trajectory in a volume. More...

#include "ParticleFilters.h"

Inheritance diagram for util::PositionInVolumeFilter:

Classes
struct	VolumeInfo_t

Public Types
using	Point_t = std::array< double, 3 >

using	AllVolumeInfo_t = std::vector< VolumeInfo_t >

Public Member Functions
bool	mustKeep (Point_t const &pos) const
	Returns whether a track along the specified point must be kept. More...

bool	mustKeep (TVector3 const &pos) const

bool	mustKeep (TLorentzVector const &pos) const


	PositionInVolumeFilter (std::vector< VolumeInfo_t > const &volumes)
	Constructors: read the volumes from the specified list. More...

	PositionInVolumeFilter (std::vector< VolumeInfo_t > &&volumes)
	Constructors: read the volumes from the specified list. More...

Protected Attributes
std::vector< VolumeInfo_t >	volumeInfo
	all good volumes More...

Detailed Description

Use to keep particles with at least part of trajectory in a volume.

Author: Matt Bass, Gianluca Petrillo

The class stores a list of pointers to volumes to consider. If a point specified in the mustKeep() call is within one of the blessed volumes, the whole track it belongs to must to be kept.

No condition for prompt rejection is provided.

Definition at line 48 of file ParticleFilters.h.

Member Typedef Documentation

using util::PositionInVolumeFilter::AllVolumeInfo_t = std::vector<VolumeInfo_t>

Definition at line 63 of file ParticleFilters.h.

using util::PositionInVolumeFilter::Point_t = std::array<double, 3>

Definition at line 51 of file ParticleFilters.h.

Constructor & Destructor Documentation

util::PositionInVolumeFilter::PositionInVolumeFilter ( std::vector< VolumeInfo_t > const & volumes )

inline

Constructors: read the volumes from the specified list.

Parameters

volumes list of interesting volumes

Definition at line 68 of file ParticleFilters.h.

69 : volumeInfo(volumes)

70 {}

util::PositionInVolumeFilter::volumeInfo

std::vector< VolumeInfo_t > volumeInfo

all good volumes

Definition: ParticleFilters.h:108

util::PositionInVolumeFilter::PositionInVolumeFilter ( std::vector< VolumeInfo_t > && volumes )

inline

Constructors: read the volumes from the specified list.

Parameters

volumes list of interesting volumes

Definition at line 71 of file ParticleFilters.h.

72 : volumeInfo(std::move(volumes))

73 {}

util::PositionInVolumeFilter::volumeInfo

std::vector< VolumeInfo_t > volumeInfo

all good volumes

Definition: ParticleFilters.h:108

Member Function Documentation

bool util::PositionInVolumeFilter::mustKeep ( Point_t const & pos ) const

inline

Returns whether a track along the specified point must be kept.

Parameters

pos	point on the track, a [x,y,z] array in "Geant4 coordinates" whether a track along the specified point must be kept

If the return value is true, the track must be kept. If the return value is false, no decision can be made yet. If no decision is made after the track is over, the track should be dropped.

Definition at line 86 of file ParticleFilters.h.

       {
         // if no volume is specified, it means we don't filter
         if (volumeInfo.empty()) return true;
         double local[3];
         for(auto const& info: volumeInfo) {
           // transform the point to relative to the volume
           info.trans->MasterToLocal(pos.data(), local);
           // containment check
           if (info.vol->Contains(local)) return true;
         } // for volumes
         return false;
       } // mustKeep()