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BaseCkfTrajectoryBuilder.cc
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BaseCkfTrajectoryBuilder.cc
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#include "RecoTracker/CkfPattern/interface/BaseCkfTrajectoryBuilder.h"
#include "RecoTracker/MeasurementDet/interface/MeasurementTracker.h"
#include "RecoTracker/MeasurementDet/interface/MeasurementTrackerEvent.h"
#include "RecoTracker/TkDetLayers/interface/GeometricSearchTracker.h"
#include "RecoTracker/TransientTrackingRecHit/interface/TkTransientTrackingRecHitBuilder.h"
#include "TrackingTools/TrajectoryFiltering/interface/TrajectoryFilter.h"
#include "TrackingTools/DetLayers/interface/NavigationSchool.h"
#include "TrackingTools/MeasurementDet/interface/LayerMeasurements.h"
#include "TrackingTools/TrajectoryState/interface/TrajectoryStateTransform.h"
#include "TrackingTools/GeomPropagators/interface/Propagator.h"
#include "TrackingTools/PatternTools/interface/TrajectoryStateUpdator.h"
#include "TrackingTools/KalmanUpdators/interface/Chi2MeasurementEstimatorBase.h"
#include "TrackingTools/TrajectoryFiltering/interface/TrajectoryFilterFactory.h"
#include "TrackingTools/PatternTools/interface/TempTrajectory.h"
#include "TrackingTools/PatternTools/interface/Trajectory.h"
#include "TrackingTools/TrajectoryFiltering/interface/TrajectoryFilterFactory.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"
#include "FWCore/Framework/interface/EventSetup.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "TrackingTools/Records/interface/TrackingComponentsRecord.h"
#include "TrackingTools/Records/interface/TransientRecHitRecord.h"
BaseCkfTrajectoryBuilder::BaseCkfTrajectoryBuilder(const edm::ParameterSet& conf,
TrajectoryFilter *filter,
TrajectoryFilter *inOutFilter):
theUpdator(nullptr),
thePropagatorAlong(nullptr),
thePropagatorOpposite(nullptr),
theEstimator(nullptr),
theTTRHBuilder(nullptr),
theMeasurementTracker(nullptr),
theFilter(filter),
theInOutFilter(inOutFilter),
theUpdatorName(conf.getParameter<std::string>("updator")),
thePropagatorAlongName(conf.getParameter<std::string>("propagatorAlong")),
thePropagatorOppositeName(conf.getParameter<std::string>("propagatorOpposite")),
theEstimatorName(conf.getParameter<std::string>("estimator")),
theRecHitBuilderName(conf.getParameter<std::string>("TTRHBuilder"))
{
if (conf.exists("clustersToSkip")) edm::LogError("BaseCkfTrajectoryBuilder") << "ERROR: " << typeid(*this).name() << " has a clustersToSkip parameter set";
}
BaseCkfTrajectoryBuilder::~BaseCkfTrajectoryBuilder(){
}
TrajectoryFilter *BaseCkfTrajectoryBuilder::createTrajectoryFilter(const edm::ParameterSet& pset, edm::ConsumesCollector& iC) {
return TrajectoryFilterFactory::get()->create(pset.getParameter<std::string>("ComponentType"), pset, iC);
}
void
BaseCkfTrajectoryBuilder::seedMeasurements(const TrajectorySeed& seed, TempTrajectory & result) const
{
TrajectorySeed::range hitRange = seed.recHits();
PTrajectoryStateOnDet pState( seed.startingState());
const GeomDet* gdet = theMeasurementTracker->geomTracker()->idToDet(pState.detId());
TSOS outerState = trajectoryStateTransform::transientState(pState, &(gdet->surface()),
forwardPropagator(seed)->magneticField());
for (TrajectorySeed::const_iterator ihit = hitRange.first; ihit != hitRange.second; ihit++) {
TrackingRecHit::RecHitPointer recHit = ihit->cloneSH();
const GeomDet* hitGeomDet = recHit->det();
const DetLayer* hitLayer =
theMeasurementTracker->geometricSearchTracker()->detLayer(ihit->geographicalId());
TSOS invalidState( hitGeomDet->surface());
if (ihit == hitRange.second - 1) {
// the seed trajectory state should correspond to this hit
if (&gdet->surface() != &hitGeomDet->surface()) {
edm::LogError("CkfPattern") << "CkfTrajectoryBuilder error: the seed state is not on the surface of the detector of the last seed hit";
return; // FIXME: should throw exception
}
//TSOS updatedState = outerstate;
result.emplace(invalidState, outerState, recHit, 0, hitLayer);
}
else {
TSOS innerState = backwardPropagator(seed)->propagate(outerState,hitGeomDet->surface());
// try to recover if propagation failed
if unlikely(!innerState.isValid())
innerState =
trajectoryStateTransform::transientState(pState, &(hitGeomDet->surface()),
forwardPropagator(seed)->magneticField());
if(innerState.isValid()) {
TSOS innerUpdated = theUpdator->update(innerState,*recHit);
result.emplace(invalidState, innerUpdated, recHit, 0, hitLayer);
}
}
}
// method for debugging
// fix somehow
// fillSeedHistoDebugger(result.begin(),result.end());
}
TempTrajectory BaseCkfTrajectoryBuilder::
createStartingTrajectory( const TrajectorySeed& seed) const
{
TempTrajectory result(seed.direction(),seed.nHits());
seedMeasurements(seed, result);
LogDebug("CkfPattern")
<<" initial trajectory from the seed: "<<PrintoutHelper::dumpCandidate(result,true);
return result;
}
bool BaseCkfTrajectoryBuilder::toBeContinued (TempTrajectory& traj, bool inOut) const
{
if unlikely(traj.measurements().size() > 400) {
edm::LogError("BaseCkfTrajectoryBuilder_InfiniteLoop");
LogTrace("BaseCkfTrajectoryBuilder_InfiniteLoop") <<
"Cropping Track After 400 Measurements:\n" <<
" Last predicted state: " << traj.lastMeasurement().predictedState() << "\n" <<
" Last layer subdetector: " << (traj.lastLayer() ? traj.lastLayer()->subDetector() : -1) << "\n" <<
" Found hits: " << traj.foundHits() << ", lost hits: " << traj.lostHits() << "\n\n";
return false;
}
// Called after each new hit is added to the trajectory, to see if it is
// worth continuing to build this track candidate.
if (inOut) {
// if (theInOutFilter == 0) edm::LogError("CkfPattern") << "CkfTrajectoryBuilder error: trying to use dedicated filter for in-out tracking phase, when none specified";
return theInOutFilter->toBeContinued(traj);
} else {
return theFilter->toBeContinued(traj);
}
}
bool BaseCkfTrajectoryBuilder::qualityFilter( const TempTrajectory& traj, bool inOut) const
{
// Called after building a trajectory is completed, to see if it is good enough
// to keep.
if (inOut) {
// if (theInOutFilter == 0) edm::LogError("CkfPattern") << "CkfTrajectoryBuilder error: trying to use dedicated filter for in-out tracking phase, when none specified";
return theInOutFilter->qualityFilter(traj);
} else {
return theFilter->qualityFilter(traj);
}
}
void
BaseCkfTrajectoryBuilder::addToResult (boost::shared_ptr<const TrajectorySeed> const & seed, TempTrajectory& tmptraj,
TrajectoryContainer& result,
bool inOut) const
{
// quality check
if ( !qualityFilter(tmptraj, inOut) ) return;
Trajectory traj = tmptraj.toTrajectory();
traj.setSharedSeed(seed);
// discard latest dummy measurements
while (!traj.empty() && !traj.lastMeasurement().recHit()->isValid()) traj.pop();
LogDebug("CkfPattern")<<inOut<<"=inOut option. pushing a Trajectory with: "<<traj.foundHits()<<" found hits. "<<traj.lostHits()
<<" lost hits. Popped :"<<(tmptraj.measurements().size())-(traj.measurements().size())<<" hits.";
result.push_back(std::move(traj));
}
void
BaseCkfTrajectoryBuilder::addToResult (TempTrajectory const & tmptraj,
TempTrajectoryContainer& result,
bool inOut) const
{
// quality check
if ( !qualityFilter(tmptraj, inOut) ) return;
// discard latest dummy measurements
TempTrajectory traj = tmptraj;
while (!traj.empty() && !traj.lastMeasurement().recHit()->isValid()) traj.pop();
LogDebug("CkfPattern")<<inOut<<"=inOut option. pushing a TempTrajectory with: "<<traj.foundHits()<<" found hits. "<<traj.lostHits()
<<" lost hits. Popped :"<<(tmptraj.measurements().size())-(traj.measurements().size())<<" hits.";
result.push_back(std::move(traj));
}
void
BaseCkfTrajectoryBuilder::moveToResult (TempTrajectory&& traj,
TempTrajectoryContainer& result,
bool inOut) const
{
// quality check
if ( !qualityFilter(traj, inOut) ) return;
// discard latest dummy measurements
while (!traj.empty() && !traj.lastMeasurement().recHitR().isValid()) traj.pop();
LogDebug("CkfPattern")<<inOut<<"=inOut option. pushing a TempTrajectory with: "<<traj.foundHits()<<" found hits. "<<traj.lostHits();
// <<" lost hits. Popped :"<<(ttraj.measurements().size())-(traj.measurements().size())<<" hits.";
result.push_back(std::move(traj));
}
BaseCkfTrajectoryBuilder::StateAndLayers
BaseCkfTrajectoryBuilder::findStateAndLayers(const TrajectorySeed& seed, const TempTrajectory& traj) const
{
if (traj.empty())
{
//set the currentState to be the one from the trajectory seed starting point
PTrajectoryStateOnDet const & ptod = seed.startingState();
DetId id(ptod.detId());
const GeomDet * g = theMeasurementTracker->geomTracker()->idToDet(id);
const Surface * surface=&g->surface();
TSOS currentState(trajectoryStateTransform::transientState(ptod,surface,forwardPropagator(seed)->magneticField()));
const DetLayer* lastLayer = theMeasurementTracker->geometricSearchTracker()->detLayer(id);
return StateAndLayers(currentState,theNavigationSchool->nextLayers(*lastLayer,*currentState.freeState(), traj.direction()) );
}
else
{
TSOS const & currentState = traj.lastMeasurement().updatedState();
return StateAndLayers(currentState,theNavigationSchool->nextLayers(*traj.lastLayer(), *currentState.freeState(), traj.direction()) );
}
}
void BaseCkfTrajectoryBuilder::setData(const MeasurementTrackerEvent *data)
{
// possibly do some sanity check here
theMeasurementTracker = data;
}
void BaseCkfTrajectoryBuilder::setEvent(const edm::Event& event) const
{
std::cerr << "ERROR SetEvent called on " << typeid(*this).name() << ( theMeasurementTracker ? " with valid " : "witout any ") << "MeasurementTrackerEvent" << std::endl;
}
void BaseCkfTrajectoryBuilder::unset() const
{
std::cerr << "ERROR unSet called on " << typeid(*this).name() << ( theMeasurementTracker ? " with valid " : "witout any ") << "MeasurementTrackerEvent" << std::endl;
}
void BaseCkfTrajectoryBuilder::setEvent(const edm::Event& iEvent, const edm::EventSetup& iSetup, const MeasurementTrackerEvent *data) {
edm::ESHandle<TrajectoryStateUpdator> updatorHandle;
edm::ESHandle<Propagator> propagatorAlongHandle;
edm::ESHandle<Propagator> propagatorOppositeHandle;
edm::ESHandle<Chi2MeasurementEstimatorBase> estimatorHandle;
edm::ESHandle<TransientTrackingRecHitBuilder> recHitBuilderHandle;
iSetup.get<TrackingComponentsRecord>().get(theUpdatorName, updatorHandle);
iSetup.get<TrackingComponentsRecord>().get(thePropagatorAlongName, propagatorAlongHandle);
iSetup.get<TrackingComponentsRecord>().get(thePropagatorOppositeName, propagatorOppositeHandle);
iSetup.get<TrackingComponentsRecord>().get(theEstimatorName, estimatorHandle);
iSetup.get<TransientRecHitRecord>().get(theRecHitBuilderName, recHitBuilderHandle);
theUpdator = updatorHandle.product();
thePropagatorAlong = propagatorAlongHandle.product();
thePropagatorOpposite = propagatorOppositeHandle.product();
theEstimator = estimatorHandle.product();
theTTRHBuilder = recHitBuilderHandle.product();
setData(data);
if(theFilter) theFilter->setEvent(iEvent, iSetup);
if(theInOutFilter) theInOutFilter->setEvent(iEvent, iSetup);
setEvent_(iEvent, iSetup);
}