TreeFiller/src/FillerMCParticles.cc

// $Id: FillerMCParticles.cc,v 1.18 2009/09/25 08:42:50 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/GeneratorProducts/interface/HepMCProduct.h"
#include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h"
#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
#include "DataFormats/METReco/interface/METCollection.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"
#include "MitAna/DataTree/interface/MCParticleCol.h"
#include "MitProd/ObjectService/interface/ObjectService.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","genParticles")),
  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, const edm::EventSetup &es)
{
  // Add branch to tree and publish our maps.

  Int_t brsize = tws.GetDefaultBrSize();
  if (brsize<128*1024)
    brsize=128*1024;

  tws.AddBranch(mitName_,&mcParticles_,brsize);
  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() ) {
        TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
        const SimTrack &theSimTrack = iM->g4Tracks().at(iM->g4Tracks().size()-1);
        mithep::MCParticle *outSimParticle = simMap_->GetMit(theSimTrack.trackId());
        trackingMap_->Add(theRef, outSimParticle);
        if (verbose_>1) {
          printf("trackId = %i\n",theSimTrack.trackId());
          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());
            }
          }
        }
      }
    }
  }

  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:	1.19
Committed:	Mon Oct 12 21:41:47 2009 UTC (15 years, 6 months ago) by loizides
Content type:	text/plain
Branch:	MAIN
CVS Tags:	Mit_012g, Mit_012f, Mit_012e, Mit_012d, Mit_012c, Mit_012b, Mit_012a, Mit_012, Mit_011a
Changes since 1.18:	+1 -2 lines
Log Message:	Removed warning
#	User	Rev	Content
1	loizides	1.19	// $Id: FillerMCParticles.cc,v 1.18 2009/09/25 08:42:50 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	1.16	#include "SimDataFormats/GeneratorProducts/interface/HepMCProduct.h"
8	bendavid	1.8	#include "DataFormats/HepMCCandidate/interface/GenParticleFwd.h"
9			#include "DataFormats/HepMCCandidate/interface/GenParticle.h"
10	loizides	1.15	#include "DataFormats/METReco/interface/METCollection.h"
11	bendavid	1.4	#include "SimDataFormats/Track/interface/SimTrack.h"
12			#include "SimDataFormats/Track/interface/SimTrackContainer.h"
13			#include "SimDataFormats/Vertex/interface/SimVertex.h"
14			#include "SimDataFormats/Vertex/interface/SimVertexContainer.h"
15	bendavid	1.1	#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
16			#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticleFwd.h"
17			#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertex.h"
18			#include "SimDataFormats/TrackingAnalysis/interface/TrackingVertexContainer.h"
19			#include "MitAna/DataTree/interface/Names.h"
20	loizides	1.15	#include "MitAna/DataTree/interface/MCParticleCol.h"
21			#include "MitProd/ObjectService/interface/ObjectService.h"
22	bendavid	1.1
23			using namespace std;
24			using namespace edm;
25			using namespace mithep;
26
27			//--------------------------------------------------------------------------------------------------
28			FillerMCParticles::FillerMCParticles(const ParameterSet &cfg, const char *name, bool active) :
29			BaseFiller(cfg, name, active),
30			genActive_(Conf().getUntrackedParameter<bool>("genActive",true)),
31	bendavid	1.8	useAodGen_(Conf().getUntrackedParameter<bool>("useAodGen",true)),
32	bendavid	1.1	simActive_(Conf().getUntrackedParameter<bool>("simActive",true)),
33	bendavid	1.4	trackingActive_(Conf().getUntrackedParameter<bool>("trackingActive",false)),
34	loizides	1.12	genEdmName_(Conf().getUntrackedParameter<string>("genEdmName","genParticles")),
35	bendavid	1.4	simEdmName_(Conf().getUntrackedParameter<string>("simEdmName","g4SimHits")),
36	loizides	1.9	trackingEdmName_(Conf().getUntrackedParameter<string>("trackingEdmName",
37			"mergedtruth:MergedTrackTruth")),
38	loizides	1.3	genMapName_(Conf().getUntrackedParameter<string>("genMapName","GenMap")),
39			simMapName_(Conf().getUntrackedParameter<string>("simMapName","SimMap")),
40	bendavid	1.4	trackingMapName_(Conf().getUntrackedParameter<string>("trackingMapName","TrackingMap")),
41	bendavid	1.1	mitName_(Conf().getUntrackedParameter<string>("mitName",Names::gkMCPartBrn)),
42			mcParticles_(new mithep::MCParticleArr(250)),
43	bendavid	1.8	genMap_(genActive_?new mithep::GenParticleBarcodeMap:0),
44			aodGenMap_((genActive_&&useAodGen_)?new mithep::AODGenParticleMap:0),
45			simMap_(simActive_?new mithep::SimTrackTidMap:0),
46	bendavid	1.4	trackingMap_(trackingActive_?new mithep::TrackingParticleMap:0)
47	bendavid	1.1	{
48			// Constructor.
49			}
50
51			//--------------------------------------------------------------------------------------------------
52			FillerMCParticles::~FillerMCParticles()
53			{
54			// Destructor.
55
56			delete mcParticles_;
57			delete genMap_;
58	bendavid	1.8	delete aodGenMap_;
59	bendavid	1.1	delete simMap_;
60	bendavid	1.4	delete trackingMap_;
61	bendavid	1.1	}
62
63			//--------------------------------------------------------------------------------------------------
64	loizides	1.18	void FillerMCParticles::BookDataBlock(TreeWriter &tws, const edm::EventSetup &es)
65	bendavid	1.1	{
66	loizides	1.3	// Add branch to tree and publish our maps.
67	bendavid	1.1
68	loizides	1.13	Int_t brsize = tws.GetDefaultBrSize();
69			if (brsize<128*1024)
70			brsize=128*1024;
71
72			tws.AddBranch(mitName_,&mcParticles_,brsize);
73	loizides	1.9	OS()->add<mithep::MCParticleArr>(mcParticles_,mitName_);
74	loizides	1.2
75	loizides	1.9	if (genActive_ && !genMapName_.empty()) {
76			genMap_->SetBrName(mitName_);
77			if (genMap_)
78			OS()->add(genMap_,genMapName_);
79			}
80			if (simActive_ && !simMapName_.empty()) {
81			simMap_->SetBrName(mitName_);
82			if (simMap_)
83			OS()->add(simMap_,simMapName_);
84			}
85			if (trackingActive_ && !trackingMapName_.empty()) {
86			trackingMap_->SetBrName(mitName_);
87			if (trackingMap_)
88			OS()->add(trackingMap_,trackingMapName_);
89			}
90	bendavid	1.1	}
91
92			//--------------------------------------------------------------------------------------------------
93			void FillerMCParticles::FillDataBlock(const edm::Event &event,
94	loizides	1.2	const edm::EventSetup &setup)
95	bendavid	1.1	{
96	loizides	1.9	// Loop over generated or simulated particles and fill their information.
97	bendavid	1.1
98	bendavid	1.7	mcParticles_->Delete();
99	bendavid	1.1
100	bendavid	1.8	if (genActive_)
101	loizides	1.3	genMap_->Reset();
102	bendavid	1.1
103	bendavid	1.8	if (genActive_ && !useAodGen_) {
104	bendavid	1.1	Handle<edm::HepMCProduct> hHepMCProduct;
105			GetProduct(genEdmName_, hHepMCProduct, event);
106
107			const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
108	loizides	1.18
109	loizides	1.9	// loop over all hepmc particles and copy their information
110	bendavid	1.1	for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
111			pgen != GenEvent.particles_end(); ++pgen) {
112
113			HepMC::GenParticle mcPart = (pgen);
114	loizides	1.18	if(!mcPart)
115			continue;
116	bendavid	1.1
117			mithep::MCParticle *genParticle = mcParticles_->Allocate();
118			new (genParticle) mithep::MCParticle(mcPart->momentum().x(),mcPart->momentum().y(),
119	loizides	1.11	mcPart->momentum().z(),mcPart->momentum().e(),
120			mcPart->pdg_id(),mcPart->status());
121	bendavid	1.1	genParticle->SetIsGenerated();
122			genMap_->Add(mcPart->barcode(), genParticle);
123			}
124			}
125
126	bendavid	1.8	if (genActive_ && useAodGen_) {
127	loizides	1.9
128	bendavid	1.8	aodGenMap_->Reset();
129
130			Handle<reco::GenParticleCollection> hGenPProduct;
131			GetProduct(genEdmName_, hGenPProduct, event);
132
133	loizides	1.9	// element by element aligned collection of hepmc barcodes associated to
134			// the genparticles
135	bendavid	1.8	Handle<std::vector<int> > genBarcodes;
136			if (simActive_)
137			GetProduct(genEdmName_, genBarcodes, event);
138
139			const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
140
141	loizides	1.11	// loop over all genparticles and copy their information
142	bendavid	1.8	for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
143			pgen != genParticles.end(); ++pgen) {
144
145			mithep::MCParticle *mcPart = mcParticles_->Allocate();
146			new (mcPart) mithep::MCParticle(pgen->px(),pgen->py(),
147	loizides	1.18	pgen->pz(),pgen->energy(),
148			pgen->pdgId(),pgen->status());
149	bendavid	1.8
150			mcPart->SetIsGenerated();
151
152	loizides	1.9	// add hepmc barcode association, needed to merge in sim particles
153	bendavid	1.8	if (simActive_) {
154			int genBarcode = genBarcodes->at(pgen - genParticles.begin());
155			genMap_->Add(genBarcode, mcPart);
156			}
157
158			edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
159			aodGenMap_->Add(thePtr, mcPart);
160			}
161			}
162
163	bendavid	1.1	if (simActive_) {
164	loizides	1.3	simMap_->Reset();
165	bendavid	1.4
166			Handle<edm::SimTrackContainer> hSimTrackProduct;
167			GetProduct(simEdmName_, hSimTrackProduct, event);
168
169			const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
170
171	bendavid	1.1	// loop through all simParticles
172	bendavid	1.4	for (SimTrackContainer::const_iterator iM = simTracks.begin();
173			iM != simTracks.end(); ++iM) {
174
175	bendavid	1.8	mithep::MCParticle *outSimParticle = 0;
176	bendavid	1.1
177	bendavid	1.4	if (genActive_ && (iM->genpartIndex() >= 0) ) {
178			outSimParticle = genMap_->GetMit(iM->genpartIndex());
179	loizides	1.9	if (verbose_>1) {
180			printf("Sim px,py,pz,e = %f,%f,%f,%f\nGen px,py,pz,e = %f,%f,%f,%f\n",
181			iM->momentum().px(),iM->momentum().py(),
182			iM->momentum().pz(),iM->momentum().e(),
183			outSimParticle->Px(),outSimParticle->Py(),
184			outSimParticle->Pz(),outSimParticle->E());
185			}
186			} else {
187	bendavid	1.1	outSimParticle = mcParticles_->Allocate();
188	bendavid	1.4	new (outSimParticle) mithep::MCParticle(iM->momentum().px(),
189			iM->momentum().py(),
190			iM->momentum().pz(),
191			iM->momentum().e(),
192	loizides	1.9	iM->type(), -99);
193	bendavid	1.1	}
194
195			outSimParticle->SetIsSimulated();
196	bendavid	1.8	simMap_->Add(iM->trackId(), outSimParticle);
197	bendavid	1.4	}
198			}
199
200	loizides	1.10	// loop through TrackingParticles and build association map to MCParticles
201	bendavid	1.4	if (trackingActive_) {
202			trackingMap_->Reset();
203
204			Handle<TrackingParticleCollection> hTrackingParticleProduct;
205			GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
206
207	bendavid	1.5	const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
208	bendavid	1.4
209			// loop through all TrackingParticles
210	bendavid	1.5	for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
211	bendavid	1.4	iM != trackingParticles.end(); ++iM) {
212
213			if ( simActive_ && iM->g4Tracks().size() ) {
214	bendavid	1.14	TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
215			const SimTrack &theSimTrack = iM->g4Tracks().at(iM->g4Tracks().size()-1);
216			mithep::MCParticle *outSimParticle = simMap_->GetMit(theSimTrack.trackId());
217			trackingMap_->Add(theRef, outSimParticle);
218	loizides	1.9	if (verbose_>1) {
219	bendavid	1.14	printf("trackId = %i\n",theSimTrack.trackId());
220	loizides	1.9	printf("Tracking particle has %i SimTracks\n",iM->g4Tracks().size());
221			if (iM->g4Tracks().size()>1) {
222			for (std::vector<SimTrack>::const_iterator iST = iM->g4Tracks().begin();
223			iST != iM->g4Tracks().end(); ++iST) {
224			printf("g4 trackid = %i\n",iST->trackId());
225			}
226			}
227			}
228	bendavid	1.4	}
229	bendavid	1.1	}
230			}
231
232			mcParticles_->Trim();
233			}
234
235			//--------------------------------------------------------------------------------------------------
236			void FillerMCParticles::ResolveLinks(const edm::Event &event,
237	loizides	1.2	const edm::EventSetup &setup)
238	bendavid	1.1	{
239	loizides	1.9	// Loop over generated and simulated particles and resolve their links.
240	bendavid	1.1
241	bendavid	1.8	if (genActive_ && !useAodGen_) {
242	bendavid	1.1
243			Handle<edm::HepMCProduct> hHepMCProduct;
244			GetProduct(genEdmName_, hHepMCProduct, event);
245
246			const HepMC::GenEvent &GenEvent = hHepMCProduct->getHepMCData();
247
248			for (HepMC::GenEvent::particle_const_iterator pgen = GenEvent.particles_begin();
249			pgen != GenEvent.particles_end(); ++pgen) {
250
251			HepMC::GenParticle mcPart = (pgen);
252	loizides	1.18	if(!mcPart)
253			continue;
254	bendavid	1.1
255	loizides	1.11	// check if genpart has a decay vertex
256	bendavid	1.1	HepMC::GenVertex *dVertex = mcPart->end_vertex();
257	loizides	1.18	if (!dVertex)
258			continue;
259
260	loizides	1.11	// find corresponding mithep genparticle parent in association table
261	bendavid	1.1	mithep::MCParticle *genParent = genMap_->GetMit(mcPart->barcode());
262
263	loizides	1.11	// set decay vertex
264			// division by 10.0 is needed due to HepMC use of mm instead of cm for distance units
265	bendavid	1.1	genParent->SetVertex(dVertex->point3d().x()/10.0,
266	loizides	1.17	dVertex->point3d().y()/10.0,
267			dVertex->point3d().z()/10.0);
268	bendavid	1.1
269	loizides	1.11	// loop through daugthers
270	loizides	1.3	for (HepMC::GenVertex::particles_out_const_iterator pgenD =
271			dVertex->particles_out_const_begin();
272			pgenD != dVertex->particles_out_const_end(); ++pgenD) {
273	bendavid	1.1	HepMC::GenParticle mcDaughter = (pgenD);
274			mithep::MCParticle *genDaughter = genMap_->GetMit(mcDaughter->barcode());
275			genParent->AddDaughter(genDaughter);
276			if (!(genDaughter->HasMother()))
277			genDaughter->SetMother(genParent);
278			}
279			}
280			}
281
282	loizides	1.11	// loop over aod GenParticle candidates and resolve their links
283	bendavid	1.8	if (genActive_ && useAodGen_) {
284
285			Handle<reco::GenParticleCollection> hGenPProduct;
286			GetProduct(genEdmName_, hGenPProduct, event);
287
288			const reco::GenParticleCollection genParticles = *(hGenPProduct.product());
289	loizides	1.11	// loop over all genparticles and copy their information
290	bendavid	1.8	for (reco::GenParticleCollection::const_iterator pgen = genParticles.begin();
291			pgen != genParticles.end(); ++pgen) {
292
293			int nDaughters = pgen->numberOfDaughters();
294			if (nDaughters>0) {
295			edm::Ptr<reco::GenParticle> thePtr(hGenPProduct, pgen - genParticles.begin());
296			MCParticle *mcMother = aodGenMap_->GetMit(thePtr);
297			for (int i=0; i<nDaughters; ++i) {
298			const reco::Candidate *genDaughter = pgen->daughter(i);
299			MCParticle *mcDaughter = aodGenMap_->GetMit(refToPtr(pgen->daughterRef(i)));
300	loizides	1.11	// set mother decay vertex
301	bendavid	1.8	if (i==0)
302			mcMother->SetVertex(genDaughter->vx(),genDaughter->vy(),genDaughter->vz());
303	loizides	1.18
304	loizides	1.11	// set mother-daughter links
305	bendavid	1.8	mcMother->AddDaughter(mcDaughter);
306			if (!mcDaughter->HasMother())
307			mcDaughter->SetMother(mcMother);
308			}
309			}
310			}
311			}
312
313	loizides	1.11	// loop over SimTracks and resolve links
314	bendavid	1.1	if (simActive_) {
315	bendavid	1.4	Handle<edm::SimTrackContainer> hSimTrackProduct;
316			GetProduct(simEdmName_, hSimTrackProduct, event);
317
318			const edm::SimTrackContainer simTracks = *(hSimTrackProduct.product());
319
320			Handle<std::vector<SimVertex> > hSimVertexProduct;
321			GetProduct(simEdmName_, hSimVertexProduct, event);
322
323			const edm::SimVertexContainer simVertexes = *(hSimVertexProduct.product());
324
325	bendavid	1.1	// loop through all simParticles
326	bendavid	1.4	for (SimTrackContainer::const_iterator iM = simTracks.begin();
327			iM != simTracks.end(); ++iM) {
328
329			if (iM->vertIndex()>=0) {
330	bendavid	1.8	mithep::MCParticle *simDaughter = simMap_->GetMit(iM->trackId());
331	bendavid	1.4	const SimVertex &theVertex = simVertexes.at(iM->vertIndex());
332			if (theVertex.parentIndex()>=0) {
333	bendavid	1.8	mithep::MCParticle *simParent = simMap_->GetMit(theVertex.parentIndex());
334	loizides	1.9	simParent->SetVertex(theVertex.position().x(),
335			theVertex.position().y(),
336			theVertex.position().z());
337	bendavid	1.6	//make sure we don't double count the decay tree
338			if ( !simParent->HasDaughter(simDaughter) ) {
339			simParent->AddDaughter(simDaughter);
340			}
341			if ( !simDaughter->HasMother() ) {
342			simDaughter->SetMother(simParent);
343			}
344	bendavid	1.1	}
345	loizides	1.9	}
346			}
347			}
348	bendavid	1.4
349	loizides	1.9	if (verbose_>1 && trackingActive_) {
350			Handle<TrackingParticleCollection> hTrackingParticleProduct;
351			GetProduct(trackingEdmName_, hTrackingParticleProduct, event);
352
353			const TrackingParticleCollection trackingParticles = *(hTrackingParticleProduct.product());
354
355			// loop through all simParticles
356			for (TrackingParticleCollection::const_iterator iM = trackingParticles.begin();
357			iM != trackingParticles.end(); ++iM) {
358
359			TrackingParticleRef theRef(hTrackingParticleProduct, iM-trackingParticles.begin());
360
361			mithep::MCParticle *simParent = trackingMap_->GetMit(theRef);
362			printf("MCParticle pdg = %i, Daughter Pdgs: ", simParent->PdgId());
363			for (UInt_t i=0; i<simParent->NDaughters(); ++i) {
364			printf("%i, ", simParent->Daughter(i)->PdgId());
365	bendavid	1.1	}
366	loizides	1.9	printf("\n");
367
368			printf("TrackingParticle pdg = %i, Daughter Pdgs: ", iM->pdgId());
369			for (TrackingVertexRefVector::iterator v= iM->decayVertices().begin();
370			v != iM->decayVertices().end(); ++v) {
371			for (TrackingParticleRefVector::iterator pd = v->get()->daughterTracks().begin();
372			pd != v->get()->daughterTracks().end(); ++pd) {
373			printf("%i, ", pd->get()->pdgId());
374			}
375			}
376			printf("\n");
377	bendavid	1.1	}
378			}
379			}