MCBTAlg.cxx

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#include "MCBTAlg.h"

#include "art/Framework/Services/Registry/ServiceHandle.h"
#include "larcore/Geometry/WireReadout.h"
#include "larcoreobj/SimpleTypesAndConstants/geo_types.h"
#include "lardata/DetectorInfoServices/DetectorClocksService.h"
#include "lardataalg/DetectorInfo/DetectorClocks.h"
#include "lardataobj/Simulation/SimChannel.h"
#include "larreco/MCComp/MCBTAlgConstants.h"
#include "larreco/MCComp/MCBTException.h"

#include <string>

namespace btutil {

  MCBTAlg::MCBTAlg(const std::vector<unsigned int>& g4_trackid_v,
                   const std::vector<sim::SimChannel>& simch_v)
  {
    Reset(g4_trackid_v, simch_v);
  }

  void MCBTAlg::Reset(const std::vector<unsigned int>& g4_trackid_v,
                      const std::vector<sim::SimChannel>& simch_v)
  {
    _num_parts = 0;
    _sum_mcq.clear();
    _trkid_to_index.clear();
    _event_info.clear();
    //
    for (auto const& id : g4_trackid_v)
      Register(id);
    _num_parts++;
    ProcessSimChannel(simch_v);
  }

  void MCBTAlg::Reset(const std::vector<std::vector<unsigned int>>& g4_trackid_v,
                      const std::vector<sim::SimChannel>& simch_v)
  {
    _num_parts = 0;
    _sum_mcq.clear();
    _trkid_to_index.clear();
    _event_info.clear();
    //
    for (auto const& id : g4_trackid_v)
      Register(id);
    _num_parts++;
    ProcessSimChannel(simch_v);
  }

  void MCBTAlg::ProcessSimChannel(const std::vector<sim::SimChannel>& simch_v)
  {
    auto const& wireReadoutGeom = art::ServiceHandle<geo::WireReadout const>()->Get();
    _sum_mcq.resize(wireReadoutGeom.Nplanes(), std::vector<double>(_num_parts, 0));

    for (auto const& sch : simch_v) {

      auto const ch = sch.Channel();
      if (_event_info.size() <= ch) _event_info.resize(ch + 1);

      auto& ch_info = _event_info[ch];

      size_t plane = wireReadoutGeom.ChannelToWire(ch)[0].Plane;

      for (auto const& time_ide : sch.TDCIDEMap()) {

        auto const& time = time_ide.first;
        auto const& ide_v = time_ide.second;

        auto& edep_info = ch_info[time];

        if (!edep_info.size()) edep_info.resize(_num_parts, 0);

        for (auto const& ide : ide_v) {

          size_t index = kINVALID_INDEX;
          if (ide.trackID < (int)(_trkid_to_index.size())) { index = _trkid_to_index[ide.trackID]; }
          if (_num_parts <= index) {
            (*edep_info.rbegin()) += ide.numElectrons;
            (*(_sum_mcq[plane]).rbegin()) += ide.numElectrons;
          }
          else {
            edep_info[index] += ide.numElectrons;
            _sum_mcq[plane][index] += ide.numElectrons;
          }
        }
      }
    }
  }

  const std::vector<double>& MCBTAlg::MCQSum(const size_t plane_id) const
  {
    if (plane_id > _sum_mcq.size())
      throw MCBTException(Form("Invalid plane requested: %zu", plane_id));
    return _sum_mcq[plane_id];
  }

  std::vector<double> MCBTAlg::MCQ(detinfo::DetectorClocksData const& clockData,
                                   const WireRange_t& hit) const
  {
    std::vector<double> res(_num_parts, 0);

    if (_event_info.size() <= hit.ch) return res;

    auto const& ch_info = _event_info[hit.ch];

    auto itlow = ch_info.lower_bound((unsigned int)(clockData.TPCTick2TDC(hit.start)));
    auto itup = ch_info.upper_bound((unsigned int)(clockData.TPCTick2TDC(hit.end)) + 1);

    while (itlow != ch_info.end() && itlow != itup) {

      auto const& edep_info = (*itlow).second;

      for (size_t part_index = 0; part_index < _num_parts; ++part_index)

        res[part_index] += edep_info[part_index];

      ++itlow;
    }
    return res;
  }

  std::vector<double> MCBTAlg::MCQFrac(detinfo::DetectorClocksData const& clockData,
                                       const WireRange_t& hit) const
  {
    auto res = MCQ(clockData, hit);
    if (!res.size()) return res;

    double sum = 0;
    for (auto const& v : res)
      sum += v;
    for (size_t i = 0; i < (res.size() - 1); ++i)
      res[i] /= (sum - (*res.rbegin()));
    (*res.rbegin()) /= sum;
    return res;
  }

  std::vector<double> MCBTAlg::MCQ(detinfo::DetectorClocksData const& clockData,
                                   const std::vector<WireRange_t>& hit_v) const
  {
    std::vector<double> res(_num_parts, 0);
    for (auto const& h : hit_v) {
      auto tmp_res = MCQ(clockData, h);
      for (size_t i = 0; i < res.size(); ++i)
        res[i] += tmp_res[i];
    }
    return res;
  }

  std::vector<double> MCBTAlg::MCQFrac(detinfo::DetectorClocksData const& clockData,
                                       const std::vector<WireRange_t>& hit_v) const
  {
    auto res = MCQ(clockData, hit_v);
    if (!res.size()) return res;

    double sum = 0;
    for (auto const& v : res)
      sum += v;
    for (size_t i = 0; i < (res.size() - 1); ++i)
      res[i] /= (sum - (*res.rbegin()));
    (*res.rbegin()) /= sum;
    return res;
  }

  size_t MCBTAlg::Index(const unsigned int g4_track_id) const
  {
    if (g4_track_id >= _trkid_to_index.size()) return kINVALID_INDEX;
    return _trkid_to_index[g4_track_id];
  }

  void MCBTAlg::Register(const unsigned int& g4_track_id)
  {
    if (_trkid_to_index.size() <= g4_track_id)
      _trkid_to_index.resize(g4_track_id + 1, kINVALID_INDEX);

    if (_trkid_to_index[g4_track_id] == kINVALID_INDEX) {
      _trkid_to_index[g4_track_id] = _num_parts;
      ++_num_parts;
    }
  }

  void MCBTAlg::Register(const std::vector<unsigned int>& track_id_v)
  {
    unsigned int max_id = 0;
    for (auto const& id : track_id_v)
      if (max_id < id) max_id = id;
    if (_trkid_to_index.size() <= max_id) _trkid_to_index.resize(max_id + 1, kINVALID_INDEX);

    for (auto const& id : track_id_v) {

      if (_trkid_to_index[id] == kINVALID_INDEX)

        _trkid_to_index[id] = _num_parts;

      else

        throw MCBTException(Form("Doubly used TrackID: %d", id));
    }
    ++_num_parts;
  }

}