PrimaryVertexRefitter.h

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/*
  Copyright (C) 2002-2019 CERN for the benefit of the ATLAS collaboration
*/
 
// ****************************************************************************
// ----------------------------------------------------------------------------
// PrimaryVertexRefitter header file
//
// James Catmore <James.Catmore@cern.ch>
// Evelina Bouhova-Thacker <e.bouhova@cern.ch>
//
// ----------------------------------------------------------------------------
// ****************************************************************************
#ifndef PRIMARYVERTEXREFITTER_H
#define PRIMARYVERTEXREFITTER_H
#include "AthenaBaseComps/AthAlgTool.h"
#include "GaudiKernel/ToolHandle.h"
#include "xAODTracking/VertexFwd.h"
#include "xAODTracking/TrackParticleFwd.h"
#include "TrkVertexFitterInterfaces/ITrackToVertexIPEstimator.h"
 
namespace Analysis {
 
static const InterfaceID IID_PrimaryVertexRefitter("PrimaryVertexRefitter", 1, 0);
 
class PrimaryVertexRefitter:  public AthAlgTool {
public:
        PrimaryVertexRefitter(const std::string& t, const std::string& n, const IInterface*  p);
        ~PrimaryVertexRefitter();
        StatusCode initialize();
 
    static const InterfaceID& interfaceID() { return IID_PrimaryVertexRefitter;};
 
        //if ReturnCopy is true the method will return a copy of the original vertex if the fit cannot be changed
        //if Returncopy is false the method returns a null
    xAOD::Vertex* refitVertex(const xAOD::Vertex* vertex, const xAOD::Vertex* excludeVertex,
            bool ReturnCopy = true, int* exitcode = nullptr) const;
    xAOD::Vertex* refitVertex(const xAOD::Vertex* vertex, const std::vector<const xAOD::TrackParticle*> &tps,
            bool ReturnCopy = true, int* exitcode = nullptr) const;
private:
        Gaudi::Property<unsigned int> m_ntrk_min {this,"MinimumNumberOfTracksInVertex",2};
        ToolHandle <Trk::ITrackToVertexIPEstimator> m_trackToVertexIPEstimator{ this, "TrackToVertexIPEstimator", "Trk::TrackToVertexIPEstimator" };
 
};
} // end of namespace
#endif