JetFitterHelper.h

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/*
  Copyright (C) 2002-2020 CERN for the benefit of the ATLAS collaboration
*/

 
#ifndef TrkJetFitter_JetFitterHelper_H
#define TrkJetFitter_JetFitterHelper_H
 
#include <utility>
#include <vector>
#include "AthenaBaseComps/AthAlgTool.h"
 
 
namespace Trk {
 
  class VxJetCandidate;
  class VxVertexOnJetAxis;
  class RecVertexPositions;
 
  static const InterfaceID IID_JetFitterHelper("JetFitterHelper", 1, 0);
 
  class JetFitterHelper : public AthAlgTool
  {
 
  public:
 
    static const InterfaceID& interfaceID() {
      return IID_JetFitterHelper;
    }

 
    JetFitterHelper(const std::string& t, const std::string& n, const IInterface*  p);

 
    ~JetFitterHelper();

    
    void addTracksOfFirstVertexToSecondVertex(const VxVertexOnJetAxis & first,VxVertexOnJetAxis & second) const;
    
 
    void performKalmanConstraintToBePrimaryVertex(RecVertexPositions & positionToUpdate,
                          const VxVertexOnJetAxis & vertexToConstraint) const;

 
    void performKalmanConstraintToMergeVertices(RecVertexPositions & positionToUpdate,
                        const VxVertexOnJetAxis & vertexToConstraint1,
                        const VxVertexOnJetAxis & vertexToConstraint2) const;

 
    VxVertexOnJetAxis & mergeVerticesInJetCandidate(VxVertexOnJetAxis & vertex1,
                            VxVertexOnJetAxis & vertex2,
                            VxJetCandidate & myJetCandidate) const;
 
    void mergeVertexToPrimaryInJetCandidate(VxVertexOnJetAxis & vertex,
                        VxJetCandidate & myJetCandidate) const;
 
 
  private:
 
    
 
  };//end class declaration
 
}//end namespace Trk
 
 
#endif