ALinePar.h

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/*
  Copyright (C) 2002-2023 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef MUONALIGNMENTDATA_ALINEPAR_H
#define MUONALIGNMENTDATA_ALINEPAR_H
 
#include "CLHEP/Geometry/Transform3D.h"
#include "GeoPrimitives/GeoPrimitives.h"
#include "MuonAlignmentData/MuonAlignmentPar.h"
#include <array>
#include <climits>
#include <iostream>
 
class ALinePar : public MuonAlignmentPar {
public:
    // Default constructor
    ALinePar() = default;
    // destructor
    virtual ~ALinePar() override = default;
    
    enum class Parameter{
       transS = 0, 
       transZ,     
       transT,     
       rotS,       
       rotZ,       
       rotT,       
       numPars
    };
    
    void setParameters(float s, float z, float t, float rotS, float rotZ, float rotT);
    float getParameter(const Parameter& p) const{
        return m_payload[static_cast<unsigned int>(p)]; 
    }
    HepGeom::Transform3D deltaTransform() const;    
    Amg::Transform3D     delta () const;
 
    operator bool () const {
      constexpr float validityCutOff = 1.e-5;
      constexpr float rotWeight =1.e3;
      return std::abs(getParameter(Parameter::transS)) + std::abs(getParameter(Parameter::transZ)) + 
              std::abs(getParameter(Parameter::transT)) +
              rotWeight * (std::abs(getParameter(Parameter::rotS)) + 
                          std::abs(getParameter(Parameter::rotZ)) + 
                          std::abs(getParameter(Parameter::rotT)))
            > validityCutOff;
    }
private:
    std::array<float, static_cast<unsigned int>(Parameter::numPars)> m_payload{};
 
};
 
std::ostream& operator<<(std::ostream&, const ALinePar& par);
 
 
#endif  // MUONALIGNMENTDATA_ALINEPAR_H