| 1 |
paus |
1.3 |
// $Id: FillGenParts.cc,v 1.2 2008/06/02 04:52:56 loizides Exp $
|
| 2 |
loizides |
1.1 |
|
| 3 |
|
|
#include "MitProd/TreeFiller/interface/FillGenParts.h"
|
| 4 |
|
|
#include "FWCore/MessageLogger/interface/MessageLogger.h"
|
| 5 |
|
|
#include "FWCore/Framework/interface/ESHandle.h"
|
| 6 |
|
|
#include "DataFormats/Common/interface/Handle.h"
|
| 7 |
|
|
#include "FWCore/ServiceRegistry/interface/Service.h"
|
| 8 |
|
|
|
| 9 |
|
|
#include "SimDataFormats/HepMCProduct/interface/HepMCProduct.h"
|
| 10 |
|
|
#include "MitAna/DataTree/interface/Particle.h"
|
| 11 |
|
|
|
| 12 |
|
|
#include "TLorentzVector.h"
|
| 13 |
|
|
|
| 14 |
|
|
using namespace std;
|
| 15 |
|
|
using namespace edm;
|
| 16 |
|
|
using namespace mithep;
|
| 17 |
|
|
|
| 18 |
|
|
//-------------------------------------------------------------------------------------------------
|
| 19 |
|
|
FillGenParts::FillGenParts(const edm::ParameterSet &iConfig)
|
| 20 |
|
|
: anaMCSource_(iConfig.getUntrackedParameter<string>("anaMCSource" , "source"))
|
| 21 |
|
|
{
|
| 22 |
|
|
genParticles_ = new mithep::Vector<mithep::Particle>();
|
| 23 |
|
|
}
|
| 24 |
|
|
|
| 25 |
|
|
//-------------------------------------------------------------------------------------------------
|
| 26 |
|
|
FillGenParts::~FillGenParts()
|
| 27 |
|
|
{
|
| 28 |
|
|
cout << " Fillgenpars done " <<endl;
|
| 29 |
|
|
}
|
| 30 |
|
|
|
| 31 |
|
|
//-------------------------------------------------------------------------------------------------
|
| 32 |
|
|
void FillGenParts::analyze(const edm::Event &theEvent,
|
| 33 |
|
|
const edm::EventSetup &iSetup)
|
| 34 |
|
|
{
|
| 35 |
|
|
genParticles_->Reset();
|
| 36 |
|
|
|
| 37 |
|
|
Handle<HepMCProduct> theMCProduct;
|
| 38 |
|
|
try {
|
| 39 |
|
|
theEvent.getByLabel(anaMCSource_, theMCProduct);
|
| 40 |
|
|
} catch (cms::Exception& ex) {
|
| 41 |
|
|
printf("Error! can't get collection with label %s\n",anaMCSource_.c_str());
|
| 42 |
|
|
}
|
| 43 |
|
|
|
| 44 |
|
|
const HepMC::GenEvent GenEvent = theMCProduct->getHepMCData();
|
| 45 |
|
|
|
| 46 |
|
|
int nGen = 0;
|
| 47 |
|
|
for (HepMC::GenEvent::particle_const_iterator pgen =
|
| 48 |
|
|
GenEvent.particles_begin();
|
| 49 |
|
|
pgen != GenEvent.particles_end(); ++pgen) {
|
| 50 |
|
|
|
| 51 |
|
|
HepMC::GenParticle* mcPart = (*pgen);
|
| 52 |
|
|
if(!mcPart) continue;
|
| 53 |
|
|
|
| 54 |
loizides |
1.2 |
mithep::Particle genParticle(mcPart->momentum().x(),mcPart->momentum().y(),
|
| 55 |
|
|
mcPart->momentum().z(),mcPart->momentum().e());
|
| 56 |
loizides |
1.1 |
|
| 57 |
|
|
//printf("ngen %d\n",nGen);
|
| 58 |
paus |
1.3 |
|
| 59 |
loizides |
1.1 |
#if 0
|
| 60 |
|
|
genParticle.setPdgID(MCPart->pdg_id());
|
| 61 |
|
|
genParticle.setBarCode(MCPart->barcode()-1);
|
| 62 |
|
|
genParticle.setStatus(MCPart->status());
|
| 63 |
|
|
|
| 64 |
|
|
HepMC::GenVertex * momVert = MCPart->production_vertex();
|
| 65 |
|
|
//genParticle.setMother(-1);
|
| 66 |
paus |
1.3 |
if (momVert) {
|
| 67 |
|
|
if (momVert->particles_in_size() == 1) {
|
| 68 |
loizides |
1.1 |
HepMC::GenVertex::particles_in_const_iterator mom = momVert->particles_in_const_begin();
|
| 69 |
|
|
genParticle.setMother((*mom)->barcode() - 1);
|
| 70 |
|
|
} else {genParticle.setMother(-1);}
|
| 71 |
|
|
} else {genParticle.setMother(-1);}
|
| 72 |
|
|
//if(MCPart->mother()) genParticle.setMother(MCPart->mother()->barcode()-1);
|
| 73 |
|
|
//else genParticle.setMother(-1);
|
| 74 |
|
|
genParticle.setPtr(nGen);
|
| 75 |
|
|
#endif
|
| 76 |
paus |
1.3 |
|
| 77 |
loizides |
1.1 |
genParticles_->Add(genParticle);
|
| 78 |
|
|
nGen++;
|
| 79 |
|
|
}
|
| 80 |
|
|
|
| 81 |
|
|
//genParticles_->resize(nGen);
|
| 82 |
|
|
}
|
| 83 |
|
|
|
| 84 |
|
|
//-------------------------------------------------------------------------------------------------
|
| 85 |
|
|
void FillGenParts::beginJob(edm::EventSetup const &iEvent)
|
| 86 |
|
|
{
|
| 87 |
|
|
Service<TreeService> ts;
|
| 88 |
|
|
TreeWriter *tws = ts->get();
|
| 89 |
|
|
if(!tws) {
|
| 90 |
|
|
//todo error
|
| 91 |
|
|
return;
|
| 92 |
|
|
}
|
| 93 |
|
|
|
| 94 |
|
|
tws->AddBranch("Particles","mithep::Vector<mithep::Particle>",&genParticles_,32000,99);
|
| 95 |
|
|
}
|
| 96 |
|
|
|
| 97 |
|
|
//-------------------------------------------------------------------------------------------------
|
| 98 |
|
|
void FillGenParts::endJob()
|
| 99 |
|
|
{
|
| 100 |
|
|
edm::LogInfo("FillGenParts::endJob") << "Ending Job" << endl;
|
| 101 |
|
|
}
|
