#include "MCRecoPart.h"

Inheritance diagram for sim::MCRecoPart:

Public Member Functions
	MCRecoPart (fhicl::ParameterSet const &pset)
	Default constructor with fhicl parameters. More...

virtual	~MCRecoPart ()
	Default destructor. More...

void	AddParticles (const std::vector< simb::MCParticle > &mcp_v, const std::vector< simb::Origin_t > &orig_v)

unsigned int	AncestorTrackID (const unsigned int part_index)

unsigned int	MotherTrackID (const unsigned int part_index) const

unsigned int	TrackToParticleIndex (const unsigned int track_id) const

bool	InDetector (const double &x, const double &y, const double &z) const

Public Attributes
std::map< unsigned int, unsigned int >	_track_index
	Track ID => Index Map. More...

std::set< int >	_pdg_list
	PDG code list for which particle's trajectory within the detector is saved. More...

T	elements
	STL member. More...

Protected Attributes
double	_x_max

double	_x_min

double	_y_max

double	_y_min

double	_z_max

double	_z_min

Detailed Description

Definition at line 76 of file MCRecoPart.h.

Constructor & Destructor Documentation

sim::MCRecoPart::MCRecoPart ( fhicl::ParameterSet const & pset )

Default constructor with fhicl parameters.

Definition at line 15 of file MCRecoPart.cxx.

References _pdg_list, _track_index, _x_max, _x_min, _y_max, _y_min, _z_max, _z_min, clear(), geo::GeometryCore::DetHalfHeight(), geo::GeometryCore::DetHalfWidth(), geo::GeometryCore::DetLength(), and fhicl::ParameterSet::get().

   { 
     this->clear();
     _track_index.clear();
     _pdg_list.clear();
     for(auto const& id : pset.get<std::vector<int> >("SavePathPDGList"))
 
       _pdg_list.insert(id);
 
     art::ServiceHandle<geo::Geometry> geo;
     _y_max = geo->DetHalfHeight();
     _y_min = (-1.) * _y_max;
     _z_min = 0;
     _z_max = geo->DetLength();
     _x_min = 0;
     _x_max = 2.*(geo->DetHalfWidth());
 
   }

virtual sim::MCRecoPart::~MCRecoPart ( )

inlinevirtual

Default destructor.

Definition at line 84 of file MCRecoPart.h.

84 {};

Member Function Documentation

void sim::MCRecoPart::AddParticles	(	const std::vector< simb::MCParticle > &	mcp_v,
		const std::vector< simb::Origin_t > &	orig_v
	)

Definition at line 122 of file MCRecoPart.cxx.

References _pdg_list, _track_index, clear(), and InDetector().

Referenced by MCReco::produce().

   {
     if(orig_v.size() != mcp_v.size()) throw cet::exception(__FUNCTION__) << "MCParticle and Origin_t vector size not same!";
 
     this->clear();
     _track_index.clear();
 
     for(size_t i=0; i < mcp_v.size(); ++i) {
       
       auto const& mcp = mcp_v[i];
 
       //std::cout<<" Track ID : "<<mcp.TrackId()<<" ... Index : " <<this->size()<<std::endl;
 
       _track_index.insert(std::make_pair((size_t)(mcp.TrackId()),(size_t)(this->size())));
 
       this->push_back(MCMiniPart());
 
       auto& mini_mcp = (*this->rbegin());
 
       for(size_t i=0; i<(size_t)(mcp.NumberDaughters()); ++i)
         mini_mcp._daughters.insert(mcp.Daughter(i));
 
       mini_mcp._track_id  = mcp.TrackId();
       mini_mcp._pdgcode   = mcp.PdgCode();
       mini_mcp._mother    = mcp.Mother();
       mini_mcp._process   = mcp.Process();
       mini_mcp._start_vtx = mcp.Position();
       mini_mcp._start_mom = mcp.Momentum();
       mini_mcp._end_vtx   = mcp.EndPosition();
       mini_mcp._end_mom   = mcp.EndMomentum();
       mini_mcp._origin    = orig_v[i];
 
       // Change units to LArSoft (MeV, cm, us)
       for(size_t i=0; i<4; ++i) {
         mini_mcp._start_mom[i] *= 1.e3;
         mini_mcp._end_mom[i]   *= 1.e3;
       }
       /*
       for(size_t i=0; i<3; ++i) {
         mini_mcp._start_vtx[i] /= 10.;
         mini_mcp._end_vtx[i] /= 10.;
       }
       mini_mcp.start_vtx[3] /= 1.e-3;
       mini_mcp.end_vtx[3]   /= 1.e-3;
       */
 
       if(_pdg_list.find(mcp.PdgCode()) != _pdg_list.end()) {
 
         std::set<size_t> det_path_index;
 
         for(size_t i=0; i<mcp.NumberTrajectoryPoints(); ++i) {
           
           if(InDetector(mcp.Vx(i),mcp.Vy(i),mcp.Vz(i)))
 
             det_path_index.insert(i);
 
         }
 
         if(det_path_index.size()) {
           if( (*det_path_index.begin()) ) 
             det_path_index.insert( (*det_path_index.begin())-1 );
           if( det_path_index.size()>1 ) {
             if( ((*det_path_index.rbegin())+1) < mcp.NumberTrajectoryPoints() ) 
               det_path_index.insert( (*det_path_index.rbegin())+1 );
           }
           mini_mcp._det_path.reserve(det_path_index.size());
           for(auto const& index : det_path_index) {
 
             TLorentzVector vec(mcp.Momentum(index));
             for(size_t i=0; i<4; ++i) vec[i] *= 1.e3;
 
             mini_mcp._det_path.push_back(std::make_pair(mcp.Position(index),vec));
 
           }
         }
       }
     }
   }

unsigned int sim::MCRecoPart::AncestorTrackID ( const unsigned int part_index )

Definition at line 62 of file MCRecoPart.cxx.

References sim::kINVALID_UINT, MotherTrackID(), and TrackToParticleIndex().

Referenced by sim::MCTrackRecoAlg::Reconstruct(), and sim::MCShowerRecoAlg::Reconstruct().

   {
     if(part_index >= this->size()) return kINVALID_UINT;
 
     if((*this)[part_index]._ancestor != kINVALID_UINT) return (*this)[part_index]._ancestor;
 
     unsigned int result = MotherTrackID(part_index);
 
     if(result == this->at(part_index)._track_id) return result;
 
     if(!result) return this->at(part_index)._track_id;
 
     auto mother_index = TrackToParticleIndex(result);
 
     while(1) {
 
       if(mother_index != kINVALID_UINT) {
 
         auto const new_result = MotherTrackID(mother_index);
 
         if(new_result == this->at(mother_index)._track_id) break;
 
         result = new_result;
 
       }else{
         
         // Look for a particle that has a daughter = this mother
         auto const old_result = result;
         for(auto const& p : *this) {
           
           if(p._daughters.find(result) != p._daughters.end()) {
             result = p._track_id;
             break;
           }
         }
         if(result == old_result)
           break;
       }
 
       mother_index = TrackToParticleIndex(result);
 
     }
 
     (*this)[part_index]._ancestor = result;
     return result;
   }

bool sim::MCRecoPart::InDetector	(	const double &	x,
		const double &	y,
		const double &	z
	)		const

Definition at line 111 of file MCRecoPart.cxx.

References _x_max, _x_min, _y_max, _y_min, _z_max, _z_min, x, y, and z.

Referenced by AddParticles().

   {
     return !( x > _x_max || x < _x_min || 
               z > _z_max || z < _z_min || 
               y > _y_max || y < _y_min );
   }

unsigned int sim::MCRecoPart::MotherTrackID ( const unsigned int part_index ) const

Definition at line 36 of file MCRecoPart.cxx.

References sim::kINVALID_UINT, part, and TrackToParticleIndex().

Referenced by AncestorTrackID(), sim::MCTrackRecoAlg::Reconstruct(), and sim::MCShowerRecoAlg::Reconstruct().

   {
     if(this->size() <= part_index) return ::sim::kINVALID_UINT;
     
     unsigned int result = this->at(part_index)._mother;
     
     if(!result) return this->at(part_index)._track_id;
 
     if(TrackToParticleIndex(result) != ::sim::kINVALID_UINT) return result;
     
     //std::cout<< "\033[95mWarning:\033[00m Mother particle not in the particle list!"<<std::endl;
     // Do brute search 
     unsigned int daughter_id = this->at(part_index)._track_id;
     
     for(auto const& part : *this) {
 
       if(part._daughters.find(daughter_id) != part._daughters.end())
 
         return part._track_id;
 
     }
     return result;
   }

unsigned int sim::MCRecoPart::TrackToParticleIndex ( const unsigned int track_id ) const

inline

Definition at line 97 of file MCRecoPart.h.

References sim::kINVALID_UINT.

Referenced by AncestorTrackID(), MotherTrackID(), sim::MCTrackRecoAlg::Reconstruct(), and sim::MCShowerRecoAlg::Reconstruct().

     { 
       auto const iter (_track_index.find(track_id));
       if(iter==_track_index.end()) return kINVALID_UINT;
       return (*iter).second;
     }