TreeFiller/src/FillerMCParticles.cc

// $Id: FillerMCParticles.cc,v 1.10 2009/03/18 14:57:58 loizides Exp $

#include "MitProd/TreeFiller/interface/FillerMCParticles.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "DataFormats/Common/interface/Handle.h"
#include "DataFormats/Common/interface/RefToPtr.h"
#include "SimDataFormats/HepMCProduct/interface/HepMCProduct.h"
#include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h"
#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
#include "SimDataFormats/Track/interface/SimTrack.h"
#include "SimDataFormats/Track/interface/SimTrackContainer.h"
#include "SimDataFormats/Vertex/interface/SimVertex.h"
#include "SimDataFormats/Vertex/interface/SimVertexContainer.h"
#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticleFwd.h"
#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertex.h"
#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertexContainer.h"
#include "MitAna/DataTree/interface/Names.h"

using namespace std;
using namespace edm;
using namespace mithep;

//--------------------------------------------------------------------------------------------------
FillerMCParticles::FillerMCParticles(const ParameterSet &cfg, const char *name, bool active) : 
  BaseFiller(cfg, name, active),
  genActive_(Conf().getUntrackedParameter<bool>("genActive",true)),
  useAodGen_(Conf().getUntrackedParameter<bool>("useAodGen",true)),
  simActive_(Conf().getUntrackedParameter<bool>("simActive",true)),
  trackingActive_(Conf().getUntrackedParameter<bool>("trackingActive",false)),
  genEdmName_(Conf().getUntrackedParameter<string>("genEdmName","source")),
  simEdmName_(Conf().getUntrackedParameter<string>("simEdmName","g4SimHits")),
  trackingEdmName_(Conf().getUntrackedParameter<string>("trackingEdmName",
                                                        "mergedtruth:MergedTrackTruth")),
  genMapName_(Conf().getUntrackedParameter<string>("genMapName","GenMap")),
  simMapName_(Conf().getUntrackedParameter<string>("simMapName","SimMap")),
  trackingMapName_(Conf().getUntrackedParameter<string>("trackingMapName","TrackingMap")),
  mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkMCPartBrn)),
  mcParticles_(new mithep::MCParticleArr(250)),
  genMap_(genActive_?new mithep::GenParticleBarcodeMap:0),
  aodGenMap_((genActive_&&useAodGen_)?new mithep::AODGenParticleMap:0),
  simMap_(simActive_?new mithep::SimTrackTidMap:0),
  trackingMap_(trackingActive_?new mithep::TrackingParticleMap:0)
{
  // Constructor.
}

//--------------------------------------------------------------------------------------------------
FillerMCParticles::~FillerMCParticles()
{
  // Destructor.

  delete mcParticles_;
  delete genMap_;
  delete aodGenMap_;
  delete simMap_;
  delete trackingMap_;
}

//--------------------------------------------------------------------------------------------------
void FillerMCParticles::BookDataBlock(TreeWriter &tws)
{
  // Add branch to tree and publish our maps.

  tws.AddBranch(mitName_,&mcParticles_);
  OS()->add<mithep::MCParticleArr>(mcParticles_,mitName_);

  if (genActive_ && !genMapName_.empty()) {
    genMap_->SetBrName(mitName_);
    if (genMap_)
      OS()->add(genMap_,genMapName_);
  }
  if (simActive_ && !simMapName_.empty()) {
    simMap_->SetBrName(mitName_);
    if (simMap_)
      OS()->add(simMap_,simMapName_);
  }
  if (trackingActive_ && !trackingMapName_.empty()) {
    trackingMap_->SetBrName(mitName_);
    if (trackingMap_)
      OS()->add(trackingMap_,trackingMapName_);
  }
}

//--------------------------------------------------------------------------------------------------
void FillerMCParticles::FillDataBlock(const edm::Event      &event, 
                                      const edm::EventSetup &setup)
{
  // Loop over generated or simulated particles and fill their information.

  mcParticles_->Delete();

  if (genActive_)
    genMap_->Reset();
  
  if (genActive_ && !useAodGen_) {
    Handle<edm::HepMCProduct> hHepMCProduct;
    GetProduct(genEdmName_, hHepMCProduct, event);  
  
    const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();  
  
    // loop over all hepmc particles and copy their information
    for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
        pgen != GenEvent.particles_end(); ++pgen) {
  
      HepMC::GenParticle *mcPart = (*pgen);
      if(!mcPart) continue;
  
      mithep::MCParticle *genParticle = mcParticles_->Allocate();
      new (genParticle) mithep::MCParticle(mcPart->momentum().x(),mcPart->momentum().y(),
                                           mcPart->momentum().z(),mcPart->momentum().e(),
                                           mcPart->pdg_id(),mcPart->status());
      genParticle->SetIsGenerated();                                          
      genMap_->Add(mcPart->barcode(), genParticle);
    }
  }
  
  if (genActive_ && useAodGen_) {
 
    aodGenMap_->Reset();
  
    Handle<reco::GenParticleCollection> hGenPProduct;
    GetProduct(genEdmName_, hGenPProduct, event);  
    
    // element by element aligned collection of hepmc barcodes associated to
    // the genparticles
    Handle<std::vector<int> > genBarcodes;
    if (simActive_)
      GetProduct(genEdmName_, genBarcodes, event);  
  
    const reco::GenParticleCollection genParticles = *(hGenPProduct.product());  
  
    // loop over all genparticles and copy their information
    for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
        pgen != genParticles.end(); ++pgen) {
        
      mithep::MCParticle *mcPart = mcParticles_->Allocate();
      new (mcPart) mithep::MCParticle(pgen->px(),pgen->py(),
                                            pgen->pz(),pgen->energy(),
                                            pgen->pdgId(),
                                            pgen->status());
                                            
      mcPart->SetIsGenerated();                                          
      
      // add hepmc barcode association, needed to merge in sim particles
      if (simActive_) {
        int genBarcode = genBarcodes->at(pgen - genParticles.begin());
        genMap_->Add(genBarcode, mcPart);
      }
      
      edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
      aodGenMap_->Add(thePtr, mcPart);
    }
  }
  
  if (simActive_) {
    simMap_->Reset();

    Handle<edm::SimTrackContainer> hSimTrackProduct;
    GetProduct(simEdmName_, hSimTrackProduct, event);

    const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());

    // loop through all simParticles
    for (SimTrackContainer::const_iterator iM = simTracks.begin(); 
        iM != simTracks.end(); ++iM) {

      mithep::MCParticle *outSimParticle = 0;
      
      if (genActive_ && (iM->genpartIndex() >= 0) ) {
        outSimParticle = genMap_->GetMit(iM->genpartIndex());
        if (verbose_>1) {
          printf("Sim px,py,pz,e = %f,%f,%f,%f\nGen px,py,pz,e = %f,%f,%f,%f\n",       
                 iM->momentum().px(),iM->momentum().py(),
                 iM->momentum().pz(),iM->momentum().e(),
                 outSimParticle->Px(),outSimParticle->Py(),
                 outSimParticle->Pz(),outSimParticle->E());
        }
      } else {
        outSimParticle = mcParticles_->Allocate();
        new (outSimParticle) mithep::MCParticle(iM->momentum().px(),
                                                iM->momentum().py(),
                                                iM->momentum().pz(),
                                                iM->momentum().e(),
                                                iM->type(), -99);
      }
      
      outSimParticle->SetIsSimulated();
      simMap_->Add(iM->trackId(), outSimParticle);
    }
  }

  // loop through TrackingParticles and build association map to MCParticles
  if (trackingActive_) {
    trackingMap_->Reset();
  
    Handle<TrackingParticleCollection> hTrackingParticleProduct;
    GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
    
    const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
    
    // loop through all TrackingParticles
    for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
        iM != trackingParticles.end(); ++iM) {

      if ( simActive_ && iM->g4Tracks().size() ) {
        if (verbose_>1) {
          printf("Tracking particle has %i SimTracks\n",iM->g4Tracks().size());
          if (iM->g4Tracks().size()>1) {
            for (std::vector<SimTrack>::const_iterator iST = iM->g4Tracks().begin();
                 iST != iM->g4Tracks().end(); ++iST) {
              printf("g4 trackid = %i\n",iST->trackId());
            }
          }
          TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
          const SimTrack &theSimTrack = iM->g4Tracks().at(iM->g4Tracks().size()-1);
          printf("trackId = %i\n",theSimTrack.trackId());
          mithep::MCParticle *outSimParticle = simMap_->GetMit(theSimTrack.trackId());
          trackingMap_->Add(theRef, outSimParticle);
        }
      }
    }
  }

  mcParticles_->Trim();
}

//--------------------------------------------------------------------------------------------------
void FillerMCParticles::ResolveLinks(const edm::Event      &event, 
                                     const edm::EventSetup &setup)
{
  // Loop over generated and simulated particles and resolve their links.

  if (genActive_ && !useAodGen_) {
  
    Handle<edm::HepMCProduct> hHepMCProduct;
    GetProduct(genEdmName_, hHepMCProduct, event);
    
    const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();  
  
    for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
        pgen != GenEvent.particles_end(); ++pgen) {
  
      HepMC::GenParticle *mcPart = (*pgen);
      if(!mcPart) continue;
      
      // check if genpart has a decay vertex
      HepMC::GenVertex *dVertex = mcPart->end_vertex();
      if (!dVertex) continue;
  
      // find corresponding mithep genparticle parent in association table
      mithep::MCParticle *genParent = genMap_->GetMit(mcPart->barcode());
  
      // set decay vertex
      // division by 10.0 is needed due to HepMC use of mm instead of cm for distance units
      genParent->SetVertex(dVertex->point3d().x()/10.0,
                          dVertex->point3d().y()/10.0,
                          dVertex->point3d().z()/10.0);
  
      // loop through daugthers
      for (HepMC::GenVertex::particles_out_const_iterator pgenD = 
             dVertex->particles_out_const_begin(); 
           pgenD != dVertex->particles_out_const_end(); ++pgenD) {
        HepMC::GenParticle *mcDaughter = (*pgenD);
        mithep::MCParticle *genDaughter = genMap_->GetMit(mcDaughter->barcode());
        genParent->AddDaughter(genDaughter);
        if (!(genDaughter->HasMother()))
          genDaughter->SetMother(genParent);
      }
    }
  }
  
  // loop over aod GenParticle candidates and resolve their links
  if (genActive_ && useAodGen_) {
  
    Handle<reco::GenParticleCollection> hGenPProduct;
    GetProduct(genEdmName_, hGenPProduct, event);  
  
    const reco::GenParticleCollection genParticles = *(hGenPProduct.product());  
  
    // loop over all genparticles and copy their information
    for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
        pgen != genParticles.end(); ++pgen) {
  
      int nDaughters = pgen->numberOfDaughters();
      
      if (nDaughters>0) {
      
        edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
        MCParticle *mcMother = aodGenMap_->GetMit(thePtr);
        for (int i=0; i<nDaughters; ++i) {
          const reco::Candidate *genDaughter = pgen->daughter(i);
          MCParticle *mcDaughter = aodGenMap_->GetMit(refToPtr(pgen->daughterRef(i)));
          // set mother decay vertex
          if (i==0)
            mcMother->SetVertex(genDaughter->vx(),genDaughter->vy(),genDaughter->vz());
          
          // set mother-daughter links
          mcMother->AddDaughter(mcDaughter);
          if (!mcDaughter->HasMother())
            mcDaughter->SetMother(mcMother);
          
        }
      }
    }
  
  }
  
  // loop over SimTracks and resolve links
  if (simActive_) {
    Handle<edm::SimTrackContainer> hSimTrackProduct;
    GetProduct(simEdmName_, hSimTrackProduct, event);

    const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
   
    Handle<std::vector<SimVertex> > hSimVertexProduct;
    GetProduct(simEdmName_, hSimVertexProduct, event);

    const edm::SimVertexContainer simVertexes = *(hSimVertexProduct.product());

    // loop through all simParticles
    for (SimTrackContainer::const_iterator iM = simTracks.begin(); 
        iM != simTracks.end(); ++iM) {

      if (iM->vertIndex()>=0) {
        mithep::MCParticle *simDaughter = simMap_->GetMit(iM->trackId());
        const SimVertex &theVertex = simVertexes.at(iM->vertIndex());
        if (theVertex.parentIndex()>=0) {
          mithep::MCParticle *simParent = simMap_->GetMit(theVertex.parentIndex());
          simParent->SetVertex(theVertex.position().x(),
                               theVertex.position().y(),
                               theVertex.position().z());
          //make sure we don't double count the decay tree
          if ( !simParent->HasDaughter(simDaughter) ) {
            simParent->AddDaughter(simDaughter);
          }
          if ( !simDaughter->HasMother() ) {
            simDaughter->SetMother(simParent);
          }
        }
      }
    }
  }

  if (verbose_>1 && trackingActive_) {
    Handle<TrackingParticleCollection> hTrackingParticleProduct;
    GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
    
    const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());  
   
    // loop through all simParticles
    for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin(); 
         iM != trackingParticles.end(); ++iM) {
      
      TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
      
      mithep::MCParticle *simParent = trackingMap_->GetMit(theRef);
      printf("MCParticle pdg = %i, Daughter Pdgs: ", simParent->PdgId());
      for (UInt_t i=0; i<simParent->NDaughters(); ++i) {
        printf("%i, ", simParent->Daughter(i)->PdgId());
      }
      printf("\n");
      
      printf("TrackingParticle pdg = %i, Daughter Pdgs: ", iM->pdgId());
      for (TrackingVertexRefVector::iterator v= iM->decayVertices().begin(); 
           v != iM->decayVertices().end(); ++v) {
        for (TrackingParticleRefVector::iterator pd = v->get()->daughterTracks().begin(); 
             pd != v->get()->daughterTracks().end(); ++pd) {
          printf("%i, ", pd->get()->pdgId());
        }
      }
      printf("\n");
    }
  }
}
Revision:	1.11
Committed:	Wed Mar 18 15:36:11 2009 UTC (16 years, 1 month ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_008pre2
Changes since 1.10:	+14 -17 lines
Log Message:	Cosmetics
#	User	Rev	Content
1	loizides	1.11	// $Id: FillerMCParticles.cc,v 1.10 2009/03/18 14:57:58 loizides Exp $
2	bendavid	1.1
3			#include "MitProd/TreeFiller/interface/FillerMCParticles.h"
4			#include "FWCore/MessageLogger/interface/MessageLogger.h"
5			#include "DataFormats/Common/interface/Handle.h"
6	bendavid	1.8	#include "DataFormats/Common/interface/RefToPtr.h"
7	bendavid	1.1	#include "SimDataFormats/HepMCProduct/interface/HepMCProduct.h"
8	bendavid	1.8	#include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h"
9			#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
10	bendavid	1.4	#include "SimDataFormats/Track/interface/SimTrack.h"
11			#include "SimDataFormats/Track/interface/SimTrackContainer.h"
12			#include "SimDataFormats/Vertex/interface/SimVertex.h"
13			#include "SimDataFormats/Vertex/interface/SimVertexContainer.h"
14	bendavid	1.1	#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
15			#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticleFwd.h"
16			#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertex.h"
17			#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertexContainer.h"
18			#include "MitAna/DataTree/interface/Names.h"
19
20			using namespace std;
21			using namespace edm;
22			using namespace mithep;
23
24			//--------------------------------------------------------------------------------------------------
25			FillerMCParticles::FillerMCParticles(const ParameterSet &cfg, const char *name, bool active) :
26			BaseFiller(cfg, name, active),
27			genActive_(Conf().getUntrackedParameter<bool>("genActive",true)),
28	bendavid	1.8	useAodGen_(Conf().getUntrackedParameter<bool>("useAodGen",true)),
29	bendavid	1.1	simActive_(Conf().getUntrackedParameter<bool>("simActive",true)),
30	bendavid	1.4	trackingActive_(Conf().getUntrackedParameter<bool>("trackingActive",false)),
31	bendavid	1.1	genEdmName_(Conf().getUntrackedParameter<string>("genEdmName","source")),
32	bendavid	1.4	simEdmName_(Conf().getUntrackedParameter<string>("simEdmName","g4SimHits")),
33	loizides	1.9	trackingEdmName_(Conf().getUntrackedParameter<string>("trackingEdmName",
34			"mergedtruth:MergedTrackTruth")),
35	loizides	1.3	genMapName_(Conf().getUntrackedParameter<string>("genMapName","GenMap")),
36			simMapName_(Conf().getUntrackedParameter<string>("simMapName","SimMap")),
37	bendavid	1.4	trackingMapName_(Conf().getUntrackedParameter<string>("trackingMapName","TrackingMap")),
38	bendavid	1.1	mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkMCPartBrn)),
39			mcParticles_(new mithep::MCParticleArr(250)),
40	bendavid	1.8	genMap_(genActive_?new mithep::GenParticleBarcodeMap:0),
41			aodGenMap_((genActive_&&useAodGen_)?new mithep::AODGenParticleMap:0),
42			simMap_(simActive_?new mithep::SimTrackTidMap:0),
43	bendavid	1.4	trackingMap_(trackingActive_?new mithep::TrackingParticleMap:0)
44	bendavid	1.1	{
45			// Constructor.
46			}
47
48			//--------------------------------------------------------------------------------------------------
49			FillerMCParticles::~FillerMCParticles()
50			{
51			// Destructor.
52
53			delete mcParticles_;
54			delete genMap_;
55	bendavid	1.8	delete aodGenMap_;
56	bendavid	1.1	delete simMap_;
57	bendavid	1.4	delete trackingMap_;
58	bendavid	1.1	}
59
60			//--------------------------------------------------------------------------------------------------
61			void FillerMCParticles::BookDataBlock(TreeWriter &tws)
62			{
63	loizides	1.3	// Add branch to tree and publish our maps.
64	bendavid	1.1
65	loizides	1.9	tws.AddBranch(mitName_,&mcParticles_);
66			OS()->add<mithep::MCParticleArr>(mcParticles_,mitName_);
67	loizides	1.2
68	loizides	1.9	if (genActive_ && !genMapName_.empty()) {
69			genMap_->SetBrName(mitName_);
70			if (genMap_)
71			OS()->add(genMap_,genMapName_);
72			}
73			if (simActive_ && !simMapName_.empty()) {
74			simMap_->SetBrName(mitName_);
75			if (simMap_)
76			OS()->add(simMap_,simMapName_);
77			}
78			if (trackingActive_ && !trackingMapName_.empty()) {
79			trackingMap_->SetBrName(mitName_);
80			if (trackingMap_)
81			OS()->add(trackingMap_,trackingMapName_);
82			}
83	bendavid	1.1	}
84
85			//--------------------------------------------------------------------------------------------------
86			void FillerMCParticles::FillDataBlock(const edm::Event &event,
87	loizides	1.2	const edm::EventSetup &setup)
88	bendavid	1.1	{
89	loizides	1.9	// Loop over generated or simulated particles and fill their information.
90	bendavid	1.1
91	bendavid	1.7	mcParticles_->Delete();
92	bendavid	1.1
93	bendavid	1.8	if (genActive_)
94	loizides	1.3	genMap_->Reset();
95	bendavid	1.1
96	bendavid	1.8	if (genActive_ && !useAodGen_) {
97	bendavid	1.1	Handle<edm::HepMCProduct> hHepMCProduct;
98			GetProduct(genEdmName_, hHepMCProduct, event);
99
100			const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
101
102	loizides	1.9	// loop over all hepmc particles and copy their information
103	bendavid	1.1	for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
104			pgen != GenEvent.particles_end(); ++pgen) {
105
106			HepMC::GenParticle mcPart = (pgen);
107			if(!mcPart) continue;
108
109			mithep::MCParticle *genParticle = mcParticles_->Allocate();
110			new (genParticle) mithep::MCParticle(mcPart->momentum().x(),mcPart->momentum().y(),
111	loizides	1.11	mcPart->momentum().z(),mcPart->momentum().e(),
112			mcPart->pdg_id(),mcPart->status());
113	bendavid	1.1	genParticle->SetIsGenerated();
114			genMap_->Add(mcPart->barcode(), genParticle);
115			}
116			}
117
118	bendavid	1.8	if (genActive_ && useAodGen_) {
119	loizides	1.9
120	bendavid	1.8	aodGenMap_->Reset();
121
122			Handle<reco::GenParticleCollection> hGenPProduct;
123			GetProduct(genEdmName_, hGenPProduct, event);
124
125	loizides	1.9	// element by element aligned collection of hepmc barcodes associated to
126			// the genparticles
127	bendavid	1.8	Handle<std::vector<int> > genBarcodes;
128			if (simActive_)
129			GetProduct(genEdmName_, genBarcodes, event);
130
131			const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
132
133	loizides	1.11	// loop over all genparticles and copy their information
134	bendavid	1.8	for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
135			pgen != genParticles.end(); ++pgen) {
136
137			mithep::MCParticle *mcPart = mcParticles_->Allocate();
138			new (mcPart) mithep::MCParticle(pgen->px(),pgen->py(),
139			pgen->pz(),pgen->energy(),
140			pgen->pdgId(),
141			pgen->status());
142
143			mcPart->SetIsGenerated();
144
145	loizides	1.9	// add hepmc barcode association, needed to merge in sim particles
146	bendavid	1.8	if (simActive_) {
147			int genBarcode = genBarcodes->at(pgen - genParticles.begin());
148			genMap_->Add(genBarcode, mcPart);
149			}
150
151			edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
152			aodGenMap_->Add(thePtr, mcPart);
153			}
154			}
155
156	bendavid	1.1	if (simActive_) {
157	loizides	1.3	simMap_->Reset();
158	bendavid	1.4
159			Handle<edm::SimTrackContainer> hSimTrackProduct;
160			GetProduct(simEdmName_, hSimTrackProduct, event);
161
162			const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
163
164	bendavid	1.1	// loop through all simParticles
165	bendavid	1.4	for (SimTrackContainer::const_iterator iM = simTracks.begin();
166			iM != simTracks.end(); ++iM) {
167
168	bendavid	1.8	mithep::MCParticle *outSimParticle = 0;
169	bendavid	1.1
170	bendavid	1.4	if (genActive_ && (iM->genpartIndex() >= 0) ) {
171			outSimParticle = genMap_->GetMit(iM->genpartIndex());
172	loizides	1.9	if (verbose_>1) {
173			printf("Sim px,py,pz,e = %f,%f,%f,%f\nGen px,py,pz,e = %f,%f,%f,%f\n",
174			iM->momentum().px(),iM->momentum().py(),
175			iM->momentum().pz(),iM->momentum().e(),
176			outSimParticle->Px(),outSimParticle->Py(),
177			outSimParticle->Pz(),outSimParticle->E());
178			}
179			} else {
180	bendavid	1.1	outSimParticle = mcParticles_->Allocate();
181	bendavid	1.4	new (outSimParticle) mithep::MCParticle(iM->momentum().px(),
182			iM->momentum().py(),
183			iM->momentum().pz(),
184			iM->momentum().e(),
185	loizides	1.9	iM->type(), -99);
186	bendavid	1.1	}
187
188			outSimParticle->SetIsSimulated();
189	bendavid	1.8	simMap_->Add(iM->trackId(), outSimParticle);
190	bendavid	1.4	}
191			}
192
193	loizides	1.10	// loop through TrackingParticles and build association map to MCParticles
194	bendavid	1.4	if (trackingActive_) {
195			trackingMap_->Reset();
196
197			Handle<TrackingParticleCollection> hTrackingParticleProduct;
198			GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
199
200	bendavid	1.5	const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
201	bendavid	1.4
202			// loop through all TrackingParticles
203	bendavid	1.5	for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
204	bendavid	1.4	iM != trackingParticles.end(); ++iM) {
205
206			if ( simActive_ && iM->g4Tracks().size() ) {
207	loizides	1.9	if (verbose_>1) {
208			printf("Tracking particle has %i SimTracks\n",iM->g4Tracks().size());
209			if (iM->g4Tracks().size()>1) {
210			for (std::vector<SimTrack>::const_iterator iST = iM->g4Tracks().begin();
211			iST != iM->g4Tracks().end(); ++iST) {
212			printf("g4 trackid = %i\n",iST->trackId());
213			}
214			}
215			TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
216			const SimTrack &theSimTrack = iM->g4Tracks().at(iM->g4Tracks().size()-1);
217			printf("trackId = %i\n",theSimTrack.trackId());
218			mithep::MCParticle *outSimParticle = simMap_->GetMit(theSimTrack.trackId());
219			trackingMap_->Add(theRef, outSimParticle);
220			}
221	bendavid	1.4	}
222	bendavid	1.1	}
223			}
224
225			mcParticles_->Trim();
226			}
227
228			//--------------------------------------------------------------------------------------------------
229			void FillerMCParticles::ResolveLinks(const edm::Event &event,
230	loizides	1.2	const edm::EventSetup &setup)
231	bendavid	1.1	{
232	loizides	1.9	// Loop over generated and simulated particles and resolve their links.
233	bendavid	1.1
234	bendavid	1.8	if (genActive_ && !useAodGen_) {
235	bendavid	1.1
236			Handle<edm::HepMCProduct> hHepMCProduct;
237			GetProduct(genEdmName_, hHepMCProduct, event);
238
239			const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
240
241			for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
242			pgen != GenEvent.particles_end(); ++pgen) {
243
244			HepMC::GenParticle mcPart = (pgen);
245			if(!mcPart) continue;
246
247	loizides	1.11	// check if genpart has a decay vertex
248	bendavid	1.1	HepMC::GenVertex *dVertex = mcPart->end_vertex();
249			if (!dVertex) continue;
250
251	loizides	1.11	// find corresponding mithep genparticle parent in association table
252	bendavid	1.1	mithep::MCParticle *genParent = genMap_->GetMit(mcPart->barcode());
253
254	loizides	1.11	// set decay vertex
255			// division by 10.0 is needed due to HepMC use of mm instead of cm for distance units
256	bendavid	1.1	genParent->SetVertex(dVertex->point3d().x()/10.0,
257			dVertex->point3d().y()/10.0,
258			dVertex->point3d().z()/10.0);
259
260	loizides	1.11	// loop through daugthers
261	loizides	1.3	for (HepMC::GenVertex::particles_out_const_iterator pgenD =
262			dVertex->particles_out_const_begin();
263			pgenD != dVertex->particles_out_const_end(); ++pgenD) {
264	bendavid	1.1	HepMC::GenParticle mcDaughter = (pgenD);
265			mithep::MCParticle *genDaughter = genMap_->GetMit(mcDaughter->barcode());
266			genParent->AddDaughter(genDaughter);
267			if (!(genDaughter->HasMother()))
268			genDaughter->SetMother(genParent);
269			}
270			}
271			}
272
273	loizides	1.11	// loop over aod GenParticle candidates and resolve their links
274	bendavid	1.8	if (genActive_ && useAodGen_) {
275
276			Handle<reco::GenParticleCollection> hGenPProduct;
277			GetProduct(genEdmName_, hGenPProduct, event);
278
279			const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
280
281	loizides	1.11	// loop over all genparticles and copy their information
282	bendavid	1.8	for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
283			pgen != genParticles.end(); ++pgen) {
284
285			int nDaughters = pgen->numberOfDaughters();
286
287			if (nDaughters>0) {
288
289			edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
290			MCParticle *mcMother = aodGenMap_->GetMit(thePtr);
291			for (int i=0; i<nDaughters; ++i) {
292			const reco::Candidate *genDaughter = pgen->daughter(i);
293			MCParticle *mcDaughter = aodGenMap_->GetMit(refToPtr(pgen->daughterRef(i)));
294	loizides	1.11	// set mother decay vertex
295	bendavid	1.8	if (i==0)
296			mcMother->SetVertex(genDaughter->vx(),genDaughter->vy(),genDaughter->vz());
297
298	loizides	1.11	// set mother-daughter links
299	bendavid	1.8	mcMother->AddDaughter(mcDaughter);
300			if (!mcDaughter->HasMother())
301			mcDaughter->SetMother(mcMother);
302
303			}
304			}
305			}
306
307			}
308
309	loizides	1.11	// loop over SimTracks and resolve links
310	bendavid	1.1	if (simActive_) {
311	bendavid	1.4	Handle<edm::SimTrackContainer> hSimTrackProduct;
312			GetProduct(simEdmName_, hSimTrackProduct, event);
313
314			const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
315
316			Handle<std::vector<SimVertex> > hSimVertexProduct;
317			GetProduct(simEdmName_, hSimVertexProduct, event);
318
319			const edm::SimVertexContainer simVertexes = *(hSimVertexProduct.product());
320
321	bendavid	1.1	// loop through all simParticles
322	bendavid	1.4	for (SimTrackContainer::const_iterator iM = simTracks.begin();
323			iM != simTracks.end(); ++iM) {
324
325			if (iM->vertIndex()>=0) {
326	bendavid	1.8	mithep::MCParticle *simDaughter = simMap_->GetMit(iM->trackId());
327	bendavid	1.4	const SimVertex &theVertex = simVertexes.at(iM->vertIndex());
328			if (theVertex.parentIndex()>=0) {
329	bendavid	1.8	mithep::MCParticle *simParent = simMap_->GetMit(theVertex.parentIndex());
330	loizides	1.9	simParent->SetVertex(theVertex.position().x(),
331			theVertex.position().y(),
332			theVertex.position().z());
333	bendavid	1.6	//make sure we don't double count the decay tree
334			if ( !simParent->HasDaughter(simDaughter) ) {
335			simParent->AddDaughter(simDaughter);
336			}
337			if ( !simDaughter->HasMother() ) {
338			simDaughter->SetMother(simParent);
339			}
340	bendavid	1.1	}
341	loizides	1.9	}
342			}
343			}
344	bendavid	1.4
345	loizides	1.9	if (verbose_>1 && trackingActive_) {
346			Handle<TrackingParticleCollection> hTrackingParticleProduct;
347			GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
348
349			const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
350
351			// loop through all simParticles
352			for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
353			iM != trackingParticles.end(); ++iM) {
354
355			TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
356
357			mithep::MCParticle *simParent = trackingMap_->GetMit(theRef);
358			printf("MCParticle pdg = %i, Daughter Pdgs: ", simParent->PdgId());
359			for (UInt_t i=0; i<simParent->NDaughters(); ++i) {
360			printf("%i, ", simParent->Daughter(i)->PdgId());
361	bendavid	1.1	}
362	loizides	1.9	printf("\n");
363
364			printf("TrackingParticle pdg = %i, Daughter Pdgs: ", iM->pdgId());
365			for (TrackingVertexRefVector::iterator v= iM->decayVertices().begin();
366			v != iM->decayVertices().end(); ++v) {
367			for (TrackingParticleRefVector::iterator pd = v->get()->daughterTracks().begin();
368			pd != v->get()->daughterTracks().end(); ++pd) {
369			printf("%i, ", pd->get()->pdgId());
370			}
371			}
372			printf("\n");
373	bendavid	1.1	}
374			}
375			}