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#ifndef RecoSelectors_CosmicTrackingParticleSelector_h
#define RecoSelectors_CosmicTrackingParticleSelector_h
/* \class CosmicTrackingParticleSelector
*
* \author Yanyan Gao, FNAL
*
* $Date: 2013/06/24 12:25:14 $
* $Revision: 1.5 $
*
*/
#include "SimDataFormats/TrackingAnalysis/interface/TrackingParticle.h"
#include "FWCore/Utilities/interface/InputTag.h"
#include "DataFormats/BeamSpot/interface/BeamSpot.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "FWCore/Framework/interface/ConsumesCollector.h"
#include "FWCore/ParameterSet/interface/ParameterSetDescription.h"
#include "TrackingTools/TrajectoryState/interface/FreeTrajectoryState.h"
#include "TrackingTools/PatternTools/interface/TSCBLBuilderNoMaterial.h"
#include "TrackingTools/PatternTools/interface/TSCPBuilderNoMaterial.h"
#include "MagneticField/Engine/interface/MagneticField.h"
#include "MagneticField/Records/interface/IdealMagneticFieldRecord.h"
#include "Geometry/Records/interface/TrackerDigiGeometryRecord.h"
#include "Geometry/TrackerGeometryBuilder/interface/TrackerGeometry.h"
#include "Geometry/CommonDetUnit/interface/GlobalTrackingGeometry.h"
#include "Geometry/Records/interface/GlobalTrackingGeometryRecord.h"
#include "DataFormats/GeometrySurface/interface/Surface.h"
#include "DataFormats/GeometrySurface/interface/GloballyPositioned.h"
#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "DataFormats/GeometryVector/interface/GlobalVector.h"
#include "DataFormats/GeometryVector/interface/GlobalPoint.h"
#include "SimGeneral/TrackingAnalysis/interface/SimHitTPAssociationProducer.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
class TrajectoryStateClosestToBeamLineBuilder;
class CosmicTrackingParticleSelector {
public:
typedef TrackingParticleCollection collection;
typedef std::vector<const TrackingParticle*> container;
typedef container::const_iterator const_iterator;
CosmicTrackingParticleSelector() {}
CosmicTrackingParticleSelector(double ptMin,
double minRapidity,
double maxRapidity,
double tip,
double lip,
int minHit,
bool chargedOnly,
const std::vector<int>& pdgId = std::vector<int>())
: ptMin_(ptMin),
minRapidity_(minRapidity),
maxRapidity_(maxRapidity),
tip_(tip),
lip_(lip),
minHit_(minHit),
chargedOnly_(chargedOnly),
pdgId_(pdgId) {}
CosmicTrackingParticleSelector(const edm::ParameterSet& cfg, edm::ConsumesCollector&& iC)
: ptMin_(cfg.getParameter<double>("ptMin")),
minRapidity_(cfg.getParameter<double>("minRapidity")),
maxRapidity_(cfg.getParameter<double>("maxRapidity")),
tip_(cfg.getParameter<double>("tip")),
lip_(cfg.getParameter<double>("lip")),
minHit_(cfg.getParameter<int>("minHit")),
chargedOnly_(cfg.getParameter<bool>("chargedOnly")),
pdgId_(cfg.getParameter<std::vector<int> >("pdgId")),
beamSpotToken_(iC.consumes<reco::BeamSpot>(edm::InputTag("offlineBeamSpot"))),
globalTrackingGeomToken_(iC.esConsumes()),
theMFToken_(iC.esConsumes()) {}
static void fillPSetDescription(edm::ParameterSetDescription& desc) {
desc.add<double>("ptMin", 0.9);
desc.add<double>("minRapidity", -2.4);
desc.add<double>("maxRapidity", 2.4);
desc.add<double>("tip", 100.0);
desc.add<double>("lip", 100.0);
desc.add<int>("minHit", 0);
desc.add<bool>("chargedOnly", true);
desc.add<std::vector<int> >("pdgId", {});
}
void select(const edm::Handle<collection>& c, const edm::Event& event, const edm::EventSetup& setup) {
selected_.clear();
edm::Handle<reco::BeamSpot> beamSpot;
event.getByToken(beamSpotToken_, beamSpot);
for (TrackingParticleCollection::const_iterator itp = c->begin(); itp != c->end(); ++itp)
if (operator()(TrackingParticleRef(c, itp - c->begin()), beamSpot.product(), event, setup)) {
selected_.push_back(&*itp);
}
}
const_iterator begin() const { return selected_.begin(); }
const_iterator end() const { return selected_.end(); }
void initEvent(edm::Handle<SimHitTPAssociationProducer::SimHitTPAssociationList> simHitsTPAssocToSet) const {
simHitsTPAssoc = simHitsTPAssocToSet;
}
// Operator() performs the selection: e.g. if (tPSelector(tp, bs, event, evtsetup)) {...
bool operator()(const TrackingParticleRef tpr,
const reco::BeamSpot* bs,
const edm::Event& iEvent,
const edm::EventSetup& iSetup) const {
if (chargedOnly_ && tpr->charge() == 0)
return false; //select only if charge!=0
//bool testId = false;
//unsigned int idSize = pdgId_.size();
//if (idSize==0) testId = true;
//else for (unsigned int it=0;it!=idSize;++it){
//if (tpr->pdgId()==pdgId_[it]) testId = true;
//}
edm::ESHandle<GlobalTrackingGeometry> theGeometry = iSetup.getHandle(globalTrackingGeomToken_);
GlobalVector finalGV(0, 0, 0);
GlobalPoint finalGP(0, 0, 0);
GlobalVector momentum(0, 0, 0); //At the PCA
GlobalPoint vertex(0, 0, 0); //At the PCA
double radius(9999);
bool found(false);
int ii = 0;
DetId::Detector det;
int subdet;
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "TOT Number of PSimHits = " << tpr->numberOfHits()
<< ", Number of Tracker PSimHits = " << tpr->numberOfTrackerHits() << "\n";
if (simHitsTPAssoc.isValid() == 0) {
edm::LogError("CosmicTrackingParticleSelector") << "Invalid handle!";
return false;
}
std::pair<TrackingParticleRef, TrackPSimHitRef> clusterTPpairWithDummyTP(
tpr, TrackPSimHitRef()); //SimHit is dummy: for simHitTPAssociationListGreater
// sorting only the cluster is needed
auto range = std::equal_range(simHitsTPAssoc->begin(),
simHitsTPAssoc->end(),
clusterTPpairWithDummyTP,
SimHitTPAssociationProducer::simHitTPAssociationListGreater);
for (auto ip = range.first; ip != range.second; ++ip) {
TrackPSimHitRef it = ip->second;
++ii;
const GeomDet* tmpDet = theGeometry->idToDet(DetId(it->detUnitId()));
if (!tmpDet) {
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "***WARNING: PSimHit " << ii << ", no GeomDet for: " << it->detUnitId() << ". Skipping it.";
continue;
} else {
det = DetId(it->detUnitId()).det();
subdet = DetId(it->detUnitId()).subdetId();
}
LocalVector lv = it->momentumAtEntry();
Local3DPoint lp = it->localPosition();
GlobalVector gv = tmpDet->surface().toGlobal(lv);
GlobalPoint gp = tmpDet->surface().toGlobal(lp);
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "PSimHit " << ii << ", Detector = " << det << ", subdet = " << subdet << "\t Radius = " << gp.perp()
<< ", z = " << gp.z() << "\t pt = " << gv.perp() << ", pz = " << gv.z();
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "\t trackId = " << it->trackId() << ", particleType = " << it->particleType()
<< ", processType = " << it->processType();
// discard hits related to low energy debris from the primary particle
if (it->processType() != 0)
continue;
if (gp.perp() < radius) {
found = true;
radius = gp.perp();
finalGV = gv;
finalGP = gp;
}
}
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "\n"
<< "FINAL State at InnerMost Hit: Radius = " << finalGP.perp() << ", z = " << finalGP.z()
<< ", pt = " << finalGV.perp() << ", pz = " << finalGV.z();
if (!found)
return false;
else {
FreeTrajectoryState ftsAtProduction(finalGP, finalGV, TrackCharge(tpr->charge()), &iSetup.getData(theMFToken_));
TSCBLBuilderNoMaterial tscblBuilder;
//as in TrackProducerAlgorithm
TrajectoryStateClosestToBeamLine tsAtClosestApproach = tscblBuilder(ftsAtProduction, *bs);
if (!tsAtClosestApproach.isValid()) {
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "*** WARNING in CosmicTrackingParticleSelector: tsAtClosestApproach is not valid."
<< "\n";
return false;
} else {
momentum = tsAtClosestApproach.trackStateAtPCA().momentum();
vertex = tsAtClosestApproach.trackStateAtPCA().position();
edm::LogVerbatim("CosmicTrackingParticleSelector")
<< "FINAL State extrapolated at PCA: Radius = " << vertex.perp() << ", z = " << vertex.z()
<< ", pt = " << momentum.perp() << ", pz = " << momentum.z() << "\n";
return (tpr->numberOfTrackerLayers() >= minHit_ && sqrt(momentum.perp2()) >= ptMin_ &&
momentum.eta() >= minRapidity_ && momentum.eta() <= maxRapidity_ && sqrt(vertex.perp2()) <= tip_ &&
fabs(vertex.z()) <= lip_);
}
}
}
size_t size() const { return selected_.size(); }
private:
double ptMin_;
double minRapidity_;
double maxRapidity_;
double tip_;
double lip_;
int minHit_;
bool chargedOnly_;
std::vector<int> pdgId_;
container selected_;
edm::EDGetTokenT<reco::BeamSpot> beamSpotToken_;
edm::ESGetToken<GlobalTrackingGeometry, GlobalTrackingGeometryRecord> globalTrackingGeomToken_;
edm::ESGetToken<MagneticField, IdealMagneticFieldRecord> theMFToken_;
mutable edm::Handle<SimHitTPAssociationProducer::SimHitTPAssociationList> simHitsTPAssoc;
};
#endif
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