AtlasDetectorID.h

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/*
  Copyright (C) 2002-2025 CERN for the benefit of the ATLAS collaboration
*/
 
#ifndef ATLASDETDESCR_ATLASDETECTORID_H
#define ATLASDETDESCR_ATLASDETECTORID_H
 
#include "Identifier/Identifier.h"
#include "Identifier/IdContext.h"
#include "Identifier/IdHelper.h"
#include "Identifier/Range.h"
#include "IdDict/IdDictFieldImplementation.h"
#include "AtlasDetTechnology.h"
#include "AthenaKernel/CLASS_DEF.h"
#include "AthenaBaseComps/AthMessaging.h"
 
#include <string>
#include <vector>
 
 
class IdDictDictionary;
class AtlasDetectorIDHelper;
 

 
class AtlasDetectorID : public IdHelper, public AthMessaging
{
public:
    enum class HelperType{
      Unimplemented = -1,
      Silicon = 0,
      Pixel, PLR, SCT, TRT, 
      //inherits from CaloIDHelper
      LArEM, LArFCal, LArFCalSuperCell,
      LArHEC, LArHEC_SuperCell, LARMiniFCal, 
      Tile, TileSuperCell,
      //
      //inherit from LArOnlineId
      LArOnline, LArOnlineSuperCell,
      //
      LArElectrode, LArHVLine,
      TileHardware, TileTestbeam, 
      CaloCell, CaloSuperCell,
      CaloDM, CaloLvl1,
      //inherit from JGTowerBase
      GTower, JTower,
      //
      Muon,
      LUCID, LUCID_Hardware, 
      Zdc,ZdcHardware,
      TT
    };
    


    AtlasDetectorID(const std::string& name, const std::string& group);
    virtual ~AtlasDetectorID();
    AtlasDetectorID(const AtlasDetectorID& other) = delete;
    AtlasDetectorID& operator= (const AtlasDetectorID& other) = delete;
    
    virtual HelperType helper() const {
      return HelperType::Unimplemented;
    }

    const std::string& group() const;



    Identifier          indet           (void) const;
    Identifier          lar             (void) const;
    Identifier          tile            (void) const;
    Identifier          muon            (void) const;
    Identifier          calo            (void) const;


    Identifier          pixel           (void) const;
    Identifier          sct             (void) const;
    Identifier          trt             (void) const;
    Identifier          hgtd            (void) const;
    Identifier          lumi            (void) const;


    Identifier          lar_em          (void) const;
    Identifier          lar_hec         (void) const;
    Identifier          lar_fcal        (void) const;


    Identifier          mdt             (void) const;
    Identifier          csc             (void) const;
    Identifier          rpc             (void) const;
    Identifier          tgc             (void) const;
    Identifier          stgc            (void) const;
    Identifier          mm              (void) const;


    Identifier          lar_lvl1        (void) const;
    Identifier          lar_dm          (void) const;
    Identifier          tile_dm         (void) const;



    IdContext           detsystem_context (void) const;

    IdContext           subdet_context  (void) const;
 



    virtual int         get_id          (const IdentifierHash& hash_id,
                                         Identifier& id,
                                         const IdContext* context = 0) const override;

    virtual int         get_hash        (const Identifier& id,
                                         IdentifierHash& hash_id,
                                         const IdContext* context = 0) const override;



    virtual int         initialize_from_dictionary(const IdDictMgr& dict_mgr) override;
 
    // retrieve version of the dictionary
    virtual std::string   dictionaryVersion  (void) const override;
 



    void                show            (Identifier id,
                                         const IdContext* context = 0,
                                         char sep = '.' ) const;
    std::string         show_to_string  (Identifier id,
                                         const IdContext* context = 0,
                                         char sep = '.'  ) const;

    void                print           (Identifier id,
                                         const IdContext* context = 0) const;
    std::string         print_to_string (Identifier id,
                                         const IdContext* context = 0) const;


    bool                is_indet        (Identifier id) const;
    bool                is_lar          (Identifier id) const;
    bool                is_tile         (Identifier id) const;
    bool                is_muon         (Identifier id) const;
    bool                is_calo         (Identifier id) const;
    bool                is_lvl1_trig_towers(Identifier id) const;
    bool                is_lvl1_online(Identifier id) const;
    bool                is_pixel        (Identifier id) const;
    bool                is_sct          (Identifier id) const;
    bool                is_trt          (Identifier id) const;
    bool                is_hgtd         (Identifier id) const;
    bool                is_lumi         (Identifier id) const;
    bool                is_plr          (Identifier id) const;
    bool                is_lar_em       (Identifier id) const;
    bool                is_lar_hec      (Identifier id) const;
    bool                is_lar_fcal     (Identifier id) const;
    bool                is_lar_minifcal (Identifier id) const;
    bool                is_lar_dm       (Identifier id) const;
    bool                is_tile_dm      (Identifier id) const;
    bool                is_mdt          (Identifier id) const;
    bool                is_csc          (Identifier id) const;
    bool                is_tgc          (Identifier id) const;
    bool                is_rpc          (Identifier id) const;
    bool                is_stgc         (Identifier id) const;
    bool                is_mm           (Identifier id) const;
    bool                is_forward      (Identifier id) const;
    bool                is_alfa         (Identifier id) const;
    bool                is_bcm          (Identifier id) const;
    bool                is_lucid        (Identifier id) const;
    bool                is_zdc          (Identifier id) const;
 


    bool                is_indet        (const ExpandedIdentifier& id) const;
    bool                is_lar          (const ExpandedIdentifier& id) const;
    bool                is_tile         (const ExpandedIdentifier& id) const;
    bool                is_muon         (const ExpandedIdentifier& id) const;
    bool                is_calo         (const ExpandedIdentifier& id) const;
    bool                is_pixel        (const ExpandedIdentifier& id) const;
    bool                is_sct          (const ExpandedIdentifier& id) const;
    bool                is_trt          (const ExpandedIdentifier& id) const;
    bool                is_hgtd         (const ExpandedIdentifier& id) const;
    bool                is_lumi         (const ExpandedIdentifier& id) const;
    bool                is_plr          (const ExpandedIdentifier& id) const;
    bool                is_lar_em       (const ExpandedIdentifier& id) const;
    bool                is_lar_hec      (const ExpandedIdentifier& id) const;
    bool                is_lar_fcal     (const ExpandedIdentifier& id) const;
    bool                is_lar_minifcal (const ExpandedIdentifier& id) const;
    bool                is_mdt          (const ExpandedIdentifier& id) const;
    bool                is_csc          (const ExpandedIdentifier& id) const;
    bool                is_tgc          (const ExpandedIdentifier& id) const;
    bool                is_rpc          (const ExpandedIdentifier& id) const;
    bool                is_stgc         (const ExpandedIdentifier& id) const;
    bool                is_mm           (const ExpandedIdentifier& id) const;



    const std::vector<std::string>&  dict_names(void) const;
    const std::vector<std::string>&  file_names(void) const;
    const std::vector<std::string>&  dict_tags (void) const;


    virtual bool        do_checks       (void) const override;
    virtual void        set_do_checks   (bool do_checks) override;


    virtual bool        do_neighbours       (void) const override;
    virtual void        set_do_neighbours   (bool do_neighbours) override;
 
protected:
 
    friend class AtlasDetectorIDHelper;
 
    virtual void        setDictVersion  (const IdDictMgr& dict_mgr, const std::string& name) override;
 
    std::string         to_range        (const ExpandedIdentifier& id) const;
 
    std::string         fix_barrel_ec   (const std::string& barrel_ec) const;

    ExpandedIdentifier          indet_exp           (void) const;
    ExpandedIdentifier          lar_exp             (void) const;
    ExpandedIdentifier          tile_exp            (void) const;
    ExpandedIdentifier          muon_exp            (void) const;
    ExpandedIdentifier          calo_exp            (void) const;
    ExpandedIdentifier          fwd_exp             (void) const;

    ExpandedIdentifier          pixel_exp           (void) const;
    ExpandedIdentifier          sct_exp             (void) const;
    ExpandedIdentifier          trt_exp             (void) const;
    ExpandedIdentifier          hgtd_exp            (void) const;
    ExpandedIdentifier          lumi_exp           (void) const;

    ExpandedIdentifier          lar_em_exp          (void) const;
    ExpandedIdentifier          lar_hec_exp         (void) const;
    ExpandedIdentifier          lar_fcal_exp        (void) const;

    ExpandedIdentifier          alfa_exp            (void) const;
    ExpandedIdentifier          bcm_exp             (void) const;
    ExpandedIdentifier          lucid_exp           (void) const;
    ExpandedIdentifier          zdc_exp             (void) const;

    int                 indet_field_value        () const;
    int                 lar_field_value          () const;
    int                 tile_field_value         () const;
    int                 muon_field_value         () const;
    int                 calo_field_value         () const;
    int                 pixel_field_value        () const;
    int                 sct_field_value          () const;
    int                 trt_field_value          () const;
    int                 hgtd_field_value         () const;
    int                 lumi_field_value         () const;
    int                 plr_field_value          () const;
    int                 lar_em_field_value       () const;
    int                 lar_hec_field_value      () const;
    int                 lar_fcal_field_value     () const;
    int                 mdt_field_value          () const;
    int                 csc_field_value          () const;
    int                 rpc_field_value          () const;
    int                 tgc_field_value          () const;
    int                 stgc_field_value         () const;
    int                 mm_field_value           () const;
    int                 forward_field_value      () const;
    int                 alfa_field_value         () const;
    int                 bcm_field_value          () const;
    int                 lucid_field_value        () const;
    int                 zdc_field_value          () const;

    int                 register_dict_tag        (const IdDictMgr& dict_mgr,
                                                  const std::string& dict_name);

    bool                reinitialize             (const IdDictMgr& dict_mgr);

    std::string m_group;

    bool        m_do_checks{};
    bool        m_do_neighbours{true};

    std::vector<std::string>  m_dict_names;

    std::vector<std::string>  m_file_names;

    std::vector<std::string>  m_dict_tags;
private:
 
    typedef Identifier::size_type                       size_type;
 
    // Identifiear numbering:
    //   Temporary fixes - set LAR and MUON ids to single level
    enum        ID   { ATLAS_ID       = static_cast<Identifier::value_type>(0),
               MAX_BIT       = Identifier::MAX_BIT,
               // mask to distinguish a pixel id from lvl1 id (bit 1 set)
               PIXEL_MASK = static_cast<Identifier::value_type>(0xFF),
               ALL_BITS     = Identifier::ALL_BITS };
 
    int                 initLevelsFromDict(const IdDictMgr& dict_mgr);
 
    // dictionary version
    std::string         m_dict_version;
    bool                m_is_initialized_from_dict{};
    size_type           m_DET_INDEX{999};
    size_type           m_SUBDET_INDEX{999};
    size_type           m_MUON_SUBDET_INDEX{999};
    int                 m_INDET_ID{2};
    int                 m_LAR_ID{4};
    int                 m_TILE_ID{5};
    int                 m_MUON_ID{7};
    int                 m_CALO_ID{10};
    int                 m_PIXEL_ID{1};
    int                 m_SCT_ID{2};
    int                 m_TRT_ID{3};
    int                 m_HGTD_ID{4};
    int                 m_LUMI_ID{3};
    int                 m_LUMI_PLR_ID{1};
    int                 m_LAR_EM_ID{1};
    int                 m_LAR_HEC_ID{2};
    int                 m_LAR_FCAL_ID{3};
    int                 m_LAR_FCAL_MODULE_INDEX{999};
    int                 m_MDT_ID{0};
    int                 m_CSC_ID{1};
    int                 m_RPC_ID{2};
    int                 m_TGC_ID{3};
    int                 m_STGC_ID{4};
    int                 m_MM_ID{5};
    int                 m_FWD_ID{13};
    int                 m_ALFA_ID{1};
    int                 m_BCM_ID{3};
    int                 m_LUCID_ID{5};
    int                 m_ZDC_ID{7};
 
    bool                m_isHighLuminosityLHC{};
 
    Range::field        m_lvl1_field;
    Range::field        m_lvl1_onl_field;
    Range::field        m_lar_dm_field;
    Range::field        m_tile_dm_field;
    const IdDictDictionary*   m_atlas_dict{};
    const IdDictDictionary*   m_indet_dict{};
    const IdDictDictionary*   m_lar_dict{};
    const IdDictDictionary*   m_tile_dict{};
    const IdDictDictionary*   m_muon_dict{};
    const IdDictDictionary*   m_calo_dict{};
    const IdDictDictionary*   m_fwd_dict{};
    AtlasDetectorIDHelper* m_helper{};
    IdDictFieldImplementation m_det_impl;
    IdDictFieldImplementation m_indet_part_impl;
    IdDictFieldImplementation m_calo_side_impl;
    IdDictFieldImplementation m_lar_part_impl;
    IdDictFieldImplementation m_lar_fcal_module_impl;
    IdDictFieldImplementation m_muon_station_name_impl;
    IdDictFieldImplementation m_muon_mdt_impl;
    IdDictFieldImplementation m_muon_rpc_impl;
    IdDictFieldImplementation m_fwd_part_impl;
 
    // vector used to store info to distinguish between muon technologies.
    std::vector<unsigned int> m_muon_tech_bits;
 
    /* removed by Philipp */
    /* // enum defining the different muon technologies (MDT and RPC are */
    /* // distinguished using the technology bit inside the identifiers) */
    /* enum MuonTechBits */
    /* { */
    /*   unknown = 0, */
    /*   isMdtOrRpc = 1, */
    /*   isCsc = 2, */
    /*   isTgc = 3, */
    /*   isMm = 4, */
    /*   isStgc = 5 */
    /* }; */
    /* removed by Philipp */
 
};
 
 
 
//using the macros below we can assign an identifier (and a version)
//This is required and checked at compile time when you try to record/retrieve
CLASS_DEF(AtlasDetectorID, 164875623, 1)
 
inline int
AtlasDetectorID::indet_field_value        () const {return (m_INDET_ID);}
 
inline int
AtlasDetectorID::lar_field_value          () const {return (m_LAR_ID);}
 
inline int
AtlasDetectorID::tile_field_value         () const {return (m_TILE_ID);}
 
inline int
AtlasDetectorID::muon_field_value         () const {return (m_MUON_ID);}
 
inline int
AtlasDetectorID::calo_field_value         () const {return (m_CALO_ID);}
 
inline int
AtlasDetectorID::pixel_field_value        () const {return (m_PIXEL_ID);}
 
inline int
AtlasDetectorID::sct_field_value          () const {return (m_SCT_ID);}
 
inline int
AtlasDetectorID::trt_field_value          () const {return (m_TRT_ID);}
 
inline int
AtlasDetectorID::hgtd_field_value         () const {return (m_HGTD_ID);}
 
inline int
AtlasDetectorID::lumi_field_value         () const {return (m_LUMI_ID);}
 
inline int
AtlasDetectorID::plr_field_value          () const {return (m_LUMI_PLR_ID);}
 
inline int
AtlasDetectorID::lar_em_field_value       () const {return (m_LAR_EM_ID);}
 
inline int
AtlasDetectorID::lar_hec_field_value      () const {return (m_LAR_HEC_ID);}
 
inline int
AtlasDetectorID::lar_fcal_field_value     () const {return (m_LAR_FCAL_ID);}
 
inline int
AtlasDetectorID::mdt_field_value          () const {return (m_MDT_ID);}
 
inline int
AtlasDetectorID::csc_field_value          () const {return (m_CSC_ID);}
 
inline int
AtlasDetectorID::rpc_field_value          () const {return (m_RPC_ID);}
 
inline int
AtlasDetectorID::tgc_field_value          () const {return (m_TGC_ID);}
 
inline int
AtlasDetectorID::stgc_field_value          () const {return (m_STGC_ID);}
 
inline int
AtlasDetectorID::mm_field_value          () const {return (m_MM_ID);}
 
inline int
AtlasDetectorID::forward_field_value      () const {return (m_FWD_ID);}
inline int
AtlasDetectorID::alfa_field_value         () const {return (m_ALFA_ID);}
inline int
AtlasDetectorID::bcm_field_value          () const {return (m_BCM_ID);}
inline int
AtlasDetectorID::lucid_field_value        () const {return (m_LUCID_ID);}
inline int
AtlasDetectorID::zdc_field_value          () const {return (m_ZDC_ID);}
 
 
inline bool
AtlasDetectorID::is_indet       (Identifier id) const
{
    return (m_det_impl.unpack(id) == m_INDET_ID);
}
 
inline bool
AtlasDetectorID::is_lar                 (Identifier id) const
{
    return (m_det_impl.unpack(id) == m_LAR_ID);
}
 
inline bool
AtlasDetectorID::is_tile                (Identifier id) const
{
    return (m_det_impl.unpack(id) == m_TILE_ID);
}
 
inline bool
AtlasDetectorID::is_muon                (Identifier id) const
{
    return (m_det_impl.unpack(id) == m_MUON_ID);
}
 
inline bool
AtlasDetectorID::is_calo(Identifier id) const
{
    return (m_det_impl.unpack(id) == m_CALO_ID);
}
 
inline bool
AtlasDetectorID::is_lvl1_trig_towers(Identifier id) const
{
    bool result = false;
    if (is_calo(id)) {
        int temp = m_calo_side_impl.unpack(id);
        result = (m_lvl1_field.match(temp));
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lvl1_online(Identifier id) const
{
    bool result = false;
    if (is_calo(id)) {
        int temp = m_calo_side_impl.unpack(id);
        result = (m_lvl1_onl_field.match(temp));
    }
    return result;
}
 
 
inline bool
AtlasDetectorID::is_lar_dm(Identifier id) const
{
    bool result = false;
    if (is_calo(id)) {
        int temp = m_calo_side_impl.unpack(id);
        result = (m_lar_dm_field.match(temp));
    }
    return result;
}
 
 
inline bool
AtlasDetectorID::is_tile_dm(Identifier id) const
{
    bool result = false;
    if (is_calo(id)) {
        int temp = m_calo_side_impl.unpack(id);
        result = (m_tile_dm_field.match(temp));
    }
    return result;
}
 
 
inline bool
AtlasDetectorID::is_pixel       (Identifier id) const
{
    bool result = false;
    if(is_indet(id)) {
        result = (m_indet_part_impl.unpack(id) == m_PIXEL_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_sct         (Identifier id) const
{
    bool result = false;
    // Must check is_pixel to allow for special bits
    // (don't need this check for 64-bit identifier, but leave it in for now)
    if(is_indet(id) && !is_pixel(id)) {
    result = (m_indet_part_impl.unpack(id) == m_SCT_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_trt         (Identifier id) const
{
    bool result = false;
    // Must check is_pixel to allow for special bits
    // (don't need this check for 64-bit identifier, but leave it in for now)
    if(is_indet(id) && !is_pixel(id)) {
        result = (m_indet_part_impl.unpack(id) == m_TRT_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_hgtd        (Identifier id) const
{
    bool result = false;
    // Must check is_pixel to allow for special bits
    // (don't need this check for 64-bit identifier, but leave it in for now)
    if(is_indet(id) && !is_pixel(id)) {
        result = (m_indet_part_impl.unpack(id) == m_HGTD_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lumi         (Identifier id) const
{
    bool result = false;
    // Must check is_pixel to allow for special bits
    // (don't need this check for 64-bit identifier, but leave it in for now)
    if(is_indet(id) && !is_pixel(id)) {
        result = (m_indet_part_impl.unpack(id) == m_LUMI_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lar_em      (Identifier id) const
{
    bool result = false;
    if(is_lar(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_LAR_EM_ID);
    }
    return result;
}
 
 
inline bool
AtlasDetectorID::is_lar_hec             (Identifier id) const
{
    bool result = false;
    if(is_lar(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_LAR_HEC_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lar_fcal            (Identifier id) const
{
    bool result = false;
    if(is_lar(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_LAR_FCAL_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lar_minifcal            (Identifier id) const
{
    bool result = false;
    if(is_lar_fcal(id)) {
        result = (m_lar_fcal_module_impl.unpack(id) == 0);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_mdt(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    // MDT and RPC can only be destinguished by the additional bit in the ID
    // since the station names are ambiguous
    if (is_muon(id) && ((techBit == AtlasDetDescr::fAtlasMDT)
                        || (techBit == AtlasDetDescr::fAtlasRPC))) {
      result = (m_muon_mdt_impl.unpack(id) == m_MDT_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_rpc(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    // MDT and RPC can only be destinguished by the additional bit in the ID
    // since the station names are ambiguous
    if (is_muon(id) && ((techBit == AtlasDetDescr::fAtlasMDT)
                        || (techBit == AtlasDetDescr::fAtlasRPC))) {
      result = (m_muon_rpc_impl.unpack(id) == m_RPC_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_csc(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    result = (is_muon(id) && (techBit == AtlasDetDescr::fAtlasCSC));
    return result;
}
 
inline bool
AtlasDetectorID::is_tgc(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    result = (is_muon(id) && (techBit == AtlasDetDescr::fAtlasTGC));
    return result;
}
 
inline bool
AtlasDetectorID::is_mm(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    result = (is_muon(id) && (techBit == AtlasDetDescr::fAtlasMM));
    return result;
}
 
inline bool
AtlasDetectorID::is_stgc(Identifier id) const
{
    bool result = false;
    if (!is_muon(id)) return false;
    unsigned int stationNameIndex = m_muon_station_name_impl.unpack(id);
    unsigned int techBit = m_muon_tech_bits[stationNameIndex];
    result = (is_muon(id) && (techBit == AtlasDetDescr::fAtlasSTGC));
    return result;
}
 
inline bool
AtlasDetectorID::is_forward      (Identifier id) const
{
    return (m_det_impl.unpack(id) == m_FWD_ID);
}
 
inline bool
AtlasDetectorID::is_alfa          (Identifier id) const
{
    bool result = false;
    if(is_forward(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_ALFA_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_bcm          (Identifier id) const
{
    bool result = false;
    if(is_forward(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_BCM_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_lucid        (Identifier id) const
{
    bool result = false;
    if(is_forward(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_LUCID_ID);
    }
    return result;
}
 
inline bool
AtlasDetectorID::is_zdc          (Identifier id) const
{
    bool result = false;
    if(is_forward(id)) {
        result = (abs(m_lar_part_impl.unpack(id)) == m_ZDC_ID);
    }
    return result;
}
 
 
#endif // ATLASDETDESCR_ATLASDETECTORID_H