FloatingSegmentReconstruction.h

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/*
   Copyright (C) 2002-2026 CERN for the benefit of the ATLAS collaboration
*/
#ifndef L1MUONS1TGCFLOATINGTOOLS_FLOATINGSEGMENTRECONSTRUCTION_H
#define L1MUONS1TGCFLOATINGTOOLS_FLOATINGSEGMENTRECONSTRUCTION_H
 
#include "GaudiKernel/StatusCode.h"
#include "L1MuonS1TGCToolInterfaces/TgcSLCandidate.h"
#include "L1MuonS1TGCToolInterfaces/Segment.h"
#include "FloatingData.h"
 
#include <cstddef>
 
namespace L1Muon::L1TGC {
 
struct FloatingSegmentReconstructionConfig {
  float maxCandidateDThetaAbs{0.10F};
  float maxCandidateDPhiAbs{0.10F};

  float maxPivotWireStripDeltaEta{-1.F};
  float maxPivotWireStripDeltaPhi{0.35F};

  std::size_t maxSegmentCombinationsPerGroup{8U};

  std::size_t maxCandidatesPerLocalBin{8U};
  float localCandidateEtaBinWidth{0.01F};
  float localCandidatePhiBinWidth{0.01F};

  std::size_t maxCandidatesPerLocalPosition{1U};
  float localDuplicateEtaWindow{0.02F};
  float localDuplicatePhiWindow{0.03F};
};
 
struct FloatingSegmentStatistics {
  std::size_t nWireSegments{0};
  std::size_t nStripSegments{0};
  std::size_t nM1M2M3Candidates{0};
  std::size_t nM1M2Candidates{0};
  std::size_t nM1M3Candidates{0};
  std::size_t nM2M3Candidates{0};
  std::size_t nM1OnlyPositionCandidates{0};
  std::size_t nM2OnlyPositionCandidates{0};
  std::size_t nM3OnlyPositionCandidates{0};
  std::size_t nRejectedProjectionCombinations{0};
  std::size_t nDuplicateProjectionSegments{0};
  std::size_t nLimitedProjectionSegments{0};
  std::size_t nRejectedPairs{0};
  std::size_t nDuplicateCandidates{0};
  std::size_t nLocalDuplicateCandidates{0};
  std::size_t nLimitedCandidates{0};
};

class FloatingSegmentReconstruction {
 public:
  explicit FloatingSegmentReconstruction(
      FloatingSegmentReconstructionConfig config = FloatingSegmentReconstructionConfig{});
 
  StatusCode build(const FloatingStationCoincidenceContainer& coincidences,
                   TgcSLCandidateContainer& candidates,
                   FloatingSegmentStatistics& statistics,
                   SegmentContainer* validationSegments = nullptr) const;
 
 private:
  FloatingSegmentReconstructionConfig m_config{};
};
 
}  // namespace L1Muon::L1TGC
 
#endif