BmnRun8GemTopDM.h

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/*
    BM@N alignment routine
    BM@N experiment at NICA complex, JINR, 2025
 
    Department: Math & Soft Group of HEP lab
    Author:     Igor Polev, polev@jinr.int
 
    BmnRun8GemTopDM class declaration
    Run8 full representation, GEM only, top half of each station
*/
 
#ifndef BMNRUN8GEMTOPDM_H
#define BMNRUN8GEMTOPDM_H
 
#include "BmnRun8TopDM.h"
 
/*
 *  Like BmnRun8TopDM but restricted to the GEM subsystem: silicon stations are
 *  not enumerated and every silicon hit is ignored. Keeps the top half of each
 *  GEM station (14 elements grouped into 7 station-half composites).
 */
 
class BmnRun8GemTopDM : public BmnRun8TopDM
{
  protected:
    // enumeration starts at the first GEM station, past all silicon ones
    virtual Int_t FirstStation() const noexcept override { return SIL_STATION_CNT; }
 
  public:
    virtual Bool_t IgnoreHit(Int_t HitDetectorID) const noexcept override
    {
        return SIL_SYSTEM_ID == (HitDetectorID >> 24)        // drop all silicon hits
               || BmnRun8HalfDM::IgnoreHit(HitDetectorID);   // and the unwanted GEM half
    }
 
    BmnRun8GemTopDM()
    {
        fDescription = "Run8 GEM top half of independent parts: "
                       "14 elements in 7 station halves";
    }
    virtual ~BmnRun8GemTopDM() override;   // out-of-line vtable anchor
};
 
#endif   // BMNRUN8GEMTOPDM_H