TransientInitialStateEstimator.h

Go to the documentation of this file.

#ifndef TransientInitialStateEstimator_H
#define TransientInitialStateEstimator_H

#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "FWCore/Framework/interface/ESHandle.h"

#include "TrackingTools/TrajectoryState/interface/TrajectoryStateOnSurface.h"

#include <utility>

class Propagator;
class GeomDet;
class Trajectory;
namespace edm { class EventSetup;}


class TransientInitialStateEstimator {
public:

  typedef TrajectoryStateOnSurface TSOS;

  TransientInitialStateEstimator( const edm::EventSetup& es, const edm::ParameterSet& conf);
  void setEventSetup( const edm::EventSetup& es );

  std::pair<TrajectoryStateOnSurface, const GeomDet*>
    innerState( const Trajectory& traj, bool doBackFit=true) const;


private:
  std::string thePropagatorAlongName;    
  std::string thePropagatorOppositeName;  
  edm::ESHandle<Propagator>  thePropagatorAlong; 
  edm::ESHandle<Propagator>  thePropagatorOpposite;
  int theNumberMeasurementsForFit;
};

#endif