MTDTopology.h

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#ifndef MTDTOPOLOGY_H
#define MTDTOPOLOGY_H
 
#include "DataFormats/DetId/interface/DetId.h"
#include "DataFormats/ForwardDetId/interface/ForwardSubdetector.h"
#include "DataFormats/ForwardDetId/interface/MTDDetId.h"
#include "DataFormats/ForwardDetId/interface/ETLDetId.h"
#include <Geometry/CommonDetUnit/interface/GeomDet.h>
 
#include <vector>
#include <string>
 
class MTDTopology {
public:
  struct ETLfaceLayout {
    uint32_t idDiscSide_;  // disc face identifier
    uint32_t idDetType1_;  // module type id identifier for first row
 
    std::array<std::vector<int>, 2> start_copy_;  // start copy per row, first of type idDetType1_
    std::array<std::vector<int>, 2> offset_;      // offset per row, first of type idDetType1_
  };
 
  using ETLValues = std::vector<ETLfaceLayout>;
 
  MTDTopology(const int& topologyMode, const ETLValues& etl);
 
  int getMTDTopologyMode() const { return mtdTopologyMode_; }
 
  // ETL topology navigation is based on a predefined order of dets in sector
 
  static bool orderETLSector(const GeomDet*& gd1, const GeomDet*& gd2);
 
  // navigation methods in ETL topology, provide the index of the det next to DetId for
  // horizontal and vertical shifts in both directions, assuming the predefined order in a sector
 
  size_t hshiftETL(const uint32_t detid, const int horizontalShift) const;
  size_t vshiftETL(const uint32_t detid, const int verticalShift, size_t& closest) const;
 
private:
  const int mtdTopologyMode_;
 
  const ETLValues etlVals_;
 
  static constexpr size_t failIndex_ =
      std::numeric_limits<unsigned int>::max();  // return out-of-range value for any failure
};
 
#endif