MdtMultiChamberGeometry.h

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/*
  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef DCMATH_MDTMULTICHAMBERGEOMETRY_H
#define DCMATH_MDTMULTICHAMBERGEOMETRY_H
 
#include <ostream>
#include <vector>
 
#include "TrkDriftCircleMath/ChamberGeometry.h"
#include "TrkDriftCircleMath/DriftCircle.h"
#include "TrkDriftCircleMath/Line.h"
#include "TrkDriftCircleMath/MdtChamberGeometry.h"
 
namespace TrkDriftCircleMath {
 
    class MdtMultiChamberGeometry : public ChamberGeometry {
    public:
        MdtMultiChamberGeometry();
 
        MdtMultiChamberGeometry(const std::vector<MdtChamberGeometry>& chambers);
 
        virtual ~MdtMultiChamberGeometry();
 
     
        DCVec tubesPassedByLine(const Line& line, int ml) const;
        DCVec tubesPassedByLine(const Line& line) const override { return tubesPassedByLine(line, -1); }
 
        unsigned int nlay() const override;
 
        LocVec2D tubePosition(unsigned int ml, unsigned int lay, unsigned int tube) const override;
 
        bool validGeometry() const override { return m_validGeometry; }
 
        void print(MsgStream& msg) const override;
 
        virtual double tubeRadius() const override;
 
        double stationTheta() const override;
 
        const Identifier& stationId() const override { return m_chambers[0].stationId(); }
 
        unsigned int nChambers() const { return m_chambers.size(); }
 
    private:
        std::vector<MdtChamberGeometry> m_chambers;
        bool m_validGeometry{false};
    };
 
    inline double MdtMultiChamberGeometry::stationTheta() const {
        double theta = 0.;
        if (m_chambers.empty() || !m_validGeometry) return 0.;
 
        for (const MdtChamberGeometry& chit : m_chambers) theta += chit.stationTheta();
        return theta / m_chambers.size();
    }
 
    inline double MdtMultiChamberGeometry::tubeRadius() const {
        if (m_chambers.empty()) return 14.6;
        return m_chambers.front().tubeRadius();
    }
 
}  // namespace TrkDriftCircleMath
 
#endif