ProjectionMatricesSet.h

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

// ProjectionMatricesSet.h, (c) ATLAS Detector software
 
#ifndef TRKEVENTPRIMITIVES_PROJECTIONMATRICESSET_H
#define TRKEVENTPRIMITIVES_PROJECTIONMATRICESSET_H
 
// Amg
#include "EventPrimitives/EventPrimitives.h"
// Trk
#include "TrkEventPrimitives/ParamDefs.h"

namespace Trk {
 

     
  class ProjectionMatricesSet {
 
    public:
      ProjectionMatricesSet(int maxdim);
      
      const Amg::MatrixX& expansionMatrix(int mtx) const;
      
      const Amg::MatrixX& reductionMatrix(int mtx) const;
      
      int accessor(int mtx, ParamDefs par) const;
      
    private:
      int                             m_maxdim;
      std::vector<Amg::MatrixX> m_expansions;
      std::vector<Amg::MatrixX> m_reductions;
      std::vector<std::vector<int>>   m_accessors;
     
  };    
 
inline const Amg::MatrixX& ProjectionMatricesSet::expansionMatrix(int mtx) const { return m_expansions[mtx]; }
 
inline const Amg::MatrixX& ProjectionMatricesSet::reductionMatrix(int mtx) const { return m_reductions[mtx]; }
    
inline int ProjectionMatricesSet::accessor(int mtx, ParamDefs par) const { return (par-(m_accessors[mtx])[par]); }
 
} // end of namespace
 
 
#endif // TRKEVENTPRIMITIVES_PROJECTIONMATRICESSET_H