CbmMvdDetectorId.h

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// -------------------------------------------------------------------------
// -----                   CbmMvdDetectorId header file                -----
// -----                 Created 22/04/09  by V. Friese                -----
// -------------------------------------------------------------------------
 
/** CbmMvdDetectorId.h
 ** Defines unique detector identifier for all MVD components.
 ** Classes using this ID scheme should derive from this class.
 ** @author V.Friese <v.friese@gsi.de>
 **/
 
#ifndef CBMMVDDETECTORID_H
#define CBMMVDDETECTORID_H 1
 
#include "BmnDetectorList.h"
#include "TObject.h"
 
#include <iostream>
 
using std::cerr;
using std::endl;
 
class CbmMvdDetectorId
{
  public:
    /** Constructor **/
    CbmMvdDetectorId();
 
    /** Destructor **/
    virtual ~CbmMvdDetectorId() {}
 
    /** Create unique detector ID from station number **/
    Int_t DetectorId(Int_t iStation) const { return (kSSD | (iStation << 5)); }
 
    /** Get System identifier from detector ID **/
    Int_t SystemId(Int_t detectorId) const
    {
        Int_t iSystem = detectorId & 31;
        if (iSystem != kSSD) {
            cerr << "-E- CbmMvdDetectorId::GetSystemId : "
                 << "wrong system ID " << iSystem << endl;
            return -1;
        }
        return iSystem;
    }
 
    /** Get station number from detector ID **/
    Int_t StationNr(Int_t detectorId) const { return ((detectorId & (~31)) >> 5); }
 
    ClassDef(CbmMvdDetectorId, 1);
};
 
#endif