ConversionTrackFinder.cc

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//
#include "RecoEgamma/EgammaPhotonAlgos/interface/ConversionTrackFinder.h"
//
#include "RecoTracker/Record/interface/CkfComponentsRecord.h"
#include "RecoTracker/CkfPattern/interface/TransientInitialStateEstimator.h"
#include "RecoTracker/TransientTrackingRecHit/interface/TkTransientTrackingRecHitBuilder.h"
//
 
#include "TrackingTools/KalmanUpdators/interface/KFUpdator.h"
//
//
 
#include <sstream>
 
ConversionTrackFinder::ConversionTrackFinder(const edm::ParameterSet& conf,
                                             const BaseCkfTrajectoryBuilder* trajectoryBuilder)
    : theCkfTrajectoryBuilder_(trajectoryBuilder),
      theInitialState_(new TransientInitialStateEstimator(
          conf.getParameter<edm::ParameterSet>("TransientInitialStateEstimatorParameters"))),
      theTrackerGeom_(nullptr),
      theUpdator_(nullptr),
      thePropagator_(nullptr) {
  //  std::cout << " ConversionTrackFinder base CTOR " << std::endl;
  useSplitHits_ = conf.getParameter<bool>("useHitsSplitting");
  theMeasurementTrackerName_ = conf.getParameter<std::string>("MeasurementTrackerName");
}
 
ConversionTrackFinder::~ConversionTrackFinder() {}
 
void ConversionTrackFinder::setEventSetup(const edm::EventSetup& es) {
  edm::ESHandle<MeasurementTracker> measurementTrackerHandle;
  es.get<CkfComponentsRecord>().get(theMeasurementTrackerName_, measurementTrackerHandle);
  theMeasurementTracker_ = measurementTrackerHandle.product();
 
  edm::ESHandle<TrackerGeometry> trackerHandle;
  es.get<TrackerDigiGeometryRecord>().get(trackerHandle);
  theTrackerGeom_ = trackerHandle.product();
 
  es.get<TrackingComponentsRecord>().get("AnyDirectionAnalyticalPropagator", thePropagator_);
 
  theInitialState_->setEventSetup(
      es, static_cast<TkTransientTrackingRecHitBuilder const*>(theCkfTrajectoryBuilder_->hitBuilder())->cloner());
}