GEMStripDigiValidation.cc

Go to the documentation of this file.

#include "Geometry/CommonTopologies/interface/StripTopology.h"
#include "Validation/MuonGEMDigis/plugins/GEMStripDigiValidation.h"
 
GEMStripDigiValidation::GEMStripDigiValidation(const edm::ParameterSet& pset)
    : GEMBaseValidation(pset, "GEMStripDigiValidation") {
  const auto& strip_pset = pset.getParameterSet("gemStripDigi");
  const auto& strip_tag = strip_pset.getParameter<edm::InputTag>("inputTag");
  strip_token_ = consumes<GEMDigiCollection>(strip_tag);
 
  const auto& simhit_pset = pset.getParameterSet("gemSimHit");
  const auto& simhit_tag = simhit_pset.getParameter<edm::InputTag>("inputTag");
  simhit_token_ = consumes<edm::PSimHitContainer>(simhit_tag);
}
 
void GEMStripDigiValidation::bookHistograms(DQMStore::IBooker& booker,
                                            edm::Run const& run,
                                            edm::EventSetup const& setup) {
  const GEMGeometry* gem = initGeometry(setup);
  if (gem == nullptr) {
    edm::LogError(kLogCategory_) << "Failed to initialize GEM geometry.";
    return;
  }
 
  // NOTE Bunch Crossing
  booker.setCurrentFolder("MuonGEMDigisV/GEMDigisTask/Strip/BunchCrossing");
 
  me_bx_ = booker.book1D("strip_bx", "Strip Digi Bunch Crossing", 5, -2.5, 2.5);
 
  if (detail_plot_) {
    for (const auto& region : gem->regions()) {
      if (region == nullptr) {
        edm::LogError(kLogCategory_) << "Null region";
        continue;
      }
      Int_t region_id = region->region();
      for (const auto& station : region->stations()) {
        if (station == nullptr) {
          edm::LogError(kLogCategory_) << "Null station for region = " << region_id;
          continue;
        }
        Int_t station_id = station->station();
 
        const auto& superChamberVec = station->superChambers();
        if (superChamberVec.empty()) {
          edm::LogError(kLogCategory_) << "Super chambers missing for region = " << region_id
                                       << " and station = " << station_id;
          continue;
        }
        const GEMSuperChamber* super_chamber = superChamberVec.front();
        if (super_chamber == nullptr) {
          edm::LogError(kLogCategory_) << "Failed to find super chamber for region = " << region_id
                                       << " and station = " << station_id;
          continue;
        }
        for (const auto& chamber : super_chamber->chambers()) {
          Int_t layer_id = chamber->id().layer();
          ME3IdsKey key3(region_id, station_id, layer_id);
 
          me_detail_bx_[key3] =
              bookHist1D(booker, key3, "strip_bx", "Strip Digi Bunch Crossing", 5, -2.5, 2.5, "Bunch crossing");
        }  // chamber loop
      }    // station loop
    }      // region loop
  }        // detail plot
 
  // NOTE Occupancy
  booker.setCurrentFolder("MuonGEMDigisV/GEMDigisTask/Strip/Occupancy");
 
  for (const auto& region : gem->regions()) {
    Int_t region_id = region->region();
 
    me_occ_zr_[region_id] = bookZROccupancy(booker, region_id, "strip", "Strip Digi");
 
    // occupancy plots for eta efficiency
    me_simhit_occ_eta_[region_id] = bookHist1D(booker,
                                               region_id,
                                               "muon_simhit_occ_eta",
                                               "Muon SimHit Eta Occupancy",
                                               50,
                                               eta_range_[0],
                                               eta_range_[1],
                                               "|#eta|");
 
    me_strip_occ_eta_[region_id] = bookHist1D(booker,
                                              region_id,
                                              "matched_strip_occ_eta",
                                              "Matched Strip Digi Eta Occupancy",
                                              50,
                                              eta_range_[0],
                                              eta_range_[1],
                                              "|#eta|");
    for (const auto& station : region->stations()) {
      Int_t station_id = station->station();
      ME2IdsKey key2{region_id, station_id};
 
      me_occ_det_[key2] = bookDetectorOccupancy(booker, key2, station, "strip", "Strip Digi");
 
      me_simhit_occ_phi_[key2] =
          bookHist1D(booker, key2, "muon_simhit_occ_phi", "Muon SimHit Phi Occupancy", 51, -M_PI, M_PI, "#phi");
 
      me_strip_occ_phi_[key2] = bookHist1D(
          booker, key2, "matched_strip_occ_phi", "Matched Strip Digi Phi Occupancy", 51, -M_PI, M_PI, "#phi");
 
      me_simhit_occ_det_[key2] = bookDetectorOccupancy(booker, key2, station, "muon_simhit", "Muon SimHit");
 
      me_strip_occ_det_[key2] = bookDetectorOccupancy(booker, key2, station, "matched_strip", "Matched Strip Digi");
 
      const auto& superChamberVec = station->superChambers();
      if (superChamberVec.empty() || superChamberVec[0] == nullptr) {
        edm::LogError(kLogCategory_) << "Super chambers missing or null for region = " << region_id
                                     << " and station = " << station_id;
      } else {
        for (const auto& chamber : superChamberVec[0]->chambers()) {
          if (chamber == nullptr) {
            edm::LogError(kLogCategory_) << "Null chamber for region, station, super chamber = (" << region_id << ", "
                                         << station_id << ", " << superChamberVec[0]->id() << ")";
            continue;
          }
          Int_t layer_id = chamber->id().layer();
          ME3IdsKey key3{region_id, station_id, layer_id};
 
          if (detail_plot_) {
            const auto& etaPartitionsVec = chamber->etaPartitions();
            if (etaPartitionsVec.empty() || etaPartitionsVec.front() == nullptr) {
              edm::LogError(kLogCategory_)
                  << "Eta partition missing or null for region, station, super chamber, chamber = (" << region_id
                  << ", " << station_id << ", " << superChamberVec[0]->id() << ", " << chamber->id() << ")";
              continue;
            }
            Int_t num_strips = etaPartitionsVec.front()->nstrips();
 
            me_detail_occ_xy_[key3] = bookXYOccupancy(booker, key3, "strip", "Strip Digi");
 
            me_detail_occ_strip_[key3] = bookHist1D(booker,
                                                    key3,
                                                    "strip_occ_strip",
                                                    "Strip Digi Occupancy per strip number",
                                                    num_strips,
                                                    0.5,
                                                    num_strips + 0.5,
                                                    "strip number");
 
            me_detail_occ_phi_strip_[key3] = bookHist2D(booker,
                                                        key3,
                                                        "strip_occ_phi_strip",
                                                        "Strip Digi Occupancy",
                                                        280,
                                                        -M_PI,
                                                        M_PI,
                                                        num_strips / 2,
                                                        0,
                                                        num_strips,
                                                        "#phi [rad]",
                                                        "strip number");
          }  // detail plot
        }    // chamber
      }      // end else
    }        // station looop
  }          // region loop
}
 
GEMStripDigiValidation::~GEMStripDigiValidation() {}
 
void GEMStripDigiValidation::analyze(const edm::Event& event, const edm::EventSetup& setup) {
  const GEMGeometry* gem = initGeometry(setup);
  if (gem == nullptr) {
    edm::LogError(kLogCategory_) << "Failed to initialize GEM geometry.";
    return;
  }
  edm::Handle<edm::PSimHitContainer> simhit_container;
  event.getByToken(simhit_token_, simhit_container);
  if (not simhit_container.isValid()) {
    edm::LogError(kLogCategory_) << "Failed to get PSimHitContainer." << std::endl;
    return;
  }
 
  edm::Handle<GEMDigiCollection> digi_collection;
  event.getByToken(strip_token_, digi_collection);
  if (not digi_collection.isValid()) {
    edm::LogError(kLogCategory_) << "Cannot get strips by Token stripToken." << std::endl;
    return;
  }
 
  // NOTE
  for (auto range_iter = digi_collection->begin(); range_iter != digi_collection->end(); range_iter++) {
    GEMDetId id = (*range_iter).first;
    if (gem->idToDet(id) == nullptr) {
      edm::LogError(kLogCategory_) << "Getting DetId failed. Discard this gem strip hit. Maybe it comes "
                                   << "from unmatched geometry." << std::endl;
      continue;
    }
 
    Int_t region_id = id.region();
    Int_t layer_id = id.layer();
    Int_t station_id = id.station();
    Int_t chamber_id = id.chamber();
    Int_t roll_id = id.roll();
 
    ME2IdsKey key2{region_id, station_id};
    ME3IdsKey key3{region_id, station_id, layer_id};
    Int_t bin_x = getDetOccBinX(chamber_id, layer_id);
 
    const BoundPlane& surface = gem->idToDet(id)->surface();
    const GEMEtaPartition* roll = gem->etaPartition(id);
 
    const GEMDigiCollection::Range& range = (*range_iter).second;
    for (auto digi = range.first; digi != range.second; ++digi) {
      Int_t strip = digi->strip();
      Int_t bx = digi->bx();
 
      GlobalPoint strip_global_pos = surface.toGlobal(roll->centreOfStrip(digi->strip()));
 
      Float_t digi_g_r = strip_global_pos.perp();
      Float_t digi_g_abs_z = std::abs(strip_global_pos.z());
 
      me_bx_->Fill(bx);
      me_occ_zr_[region_id]->Fill(digi_g_abs_z, digi_g_r), me_occ_det_[key2]->Fill(bin_x, roll_id);
 
      if (detail_plot_) {
        Float_t digi_g_x = strip_global_pos.x();
        Float_t digi_g_y = strip_global_pos.y();
        Float_t digi_g_phi = strip_global_pos.phi();
 
        me_detail_bx_[key3]->Fill(bx);
        me_detail_occ_xy_[key3]->Fill(digi_g_x, digi_g_y);
        me_detail_occ_strip_[key3]->Fill(strip);
        me_detail_occ_phi_strip_[key3]->Fill(digi_g_phi, strip);
      }
    }
  }  // range loop
 
  // NOTE
  for (const auto& simhit : *simhit_container.product()) {
    if (not isMuonSimHit(simhit))
      continue;
 
    if (gem->idToDet(simhit.detUnitId()) == nullptr) {
      edm::LogError(kLogCategory_) << "SimHit did not match with GEMGeometry." << std::endl;
      continue;
    }
 
    GEMDetId simhit_gemid(simhit.detUnitId());
 
    Int_t region_id = simhit_gemid.region();
    Int_t station_id = simhit_gemid.station();
    Int_t layer_id = simhit_gemid.layer();
    Int_t chamber_id = simhit_gemid.chamber();
    Int_t roll_id = simhit_gemid.roll();
 
    ME2IdsKey key2{region_id, station_id};
    ME3IdsKey key3{region_id, station_id, layer_id};
 
    const GEMEtaPartition* roll = gem->etaPartition(simhit_gemid);
 
    const auto& simhit_local_pos = simhit.localPosition();
    const auto& simhit_global_pos = roll->surface().toGlobal(simhit_local_pos);
 
    Float_t simhit_g_eta = std::abs(simhit_global_pos.eta());
    Float_t simhit_g_phi = simhit_global_pos.phi();
 
    Int_t simhit_strip = roll->strip(simhit_local_pos);
 
    Int_t bin_x = getDetOccBinX(chamber_id, layer_id);
    me_simhit_occ_eta_[region_id]->Fill(simhit_g_eta);
    me_simhit_occ_phi_[key2]->Fill(simhit_g_phi);
    me_simhit_occ_det_[key2]->Fill(bin_x, roll_id);
 
    auto range = digi_collection->get(simhit_gemid);
    for (auto digi = range.first; digi != range.second; ++digi) {
      if (simhit_strip == digi->strip()) {
        me_strip_occ_eta_[region_id]->Fill(simhit_g_eta);
        me_strip_occ_phi_[key2]->Fill(simhit_g_phi);
        me_strip_occ_det_[key2]->Fill(bin_x, roll_id);
        break;
      }
    }
  }  // simhit_container loop
}