BtlLocalRecoValidation.cc

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// -*- C++ -*-
//
// Package:    Validation/MtdValidation
// Class:      BtlLocalRecoValidation
//
#include <string>
 
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
 
#include "DQMServices/Core/interface/DQMEDAnalyzer.h"
#include "DQMServices/Core/interface/DQMStore.h"
 
#include "DataFormats/Common/interface/ValidHandle.h"
#include "DataFormats/Math/interface/GeantUnits.h"
#include "DataFormats/ForwardDetId/interface/BTLDetId.h"
#include "DataFormats/FTLRecHit/interface/FTLRecHitCollections.h"
#include "DataFormats/FTLRecHit/interface/FTLClusterCollections.h"
 
#include "SimDataFormats/CrossingFrame/interface/CrossingFrame.h"
#include "SimDataFormats/CrossingFrame/interface/MixCollection.h"
#include "SimDataFormats/TrackingHit/interface/PSimHit.h"
 
#include "Geometry/Records/interface/MTDDigiGeometryRecord.h"
#include "Geometry/Records/interface/MTDTopologyRcd.h"
#include "Geometry/MTDGeometryBuilder/interface/MTDGeometry.h"
#include "Geometry/MTDNumberingBuilder/interface/MTDTopology.h"
 
#include "Geometry/MTDGeometryBuilder/interface/ProxyMTDTopology.h"
#include "Geometry/MTDGeometryBuilder/interface/RectangularMTDTopology.h"
 
#include "Geometry/MTDCommonData/interface/MTDTopologyMode.h"
 
struct MTDHit {
  float energy;
  float time;
  float x_local;
  float y_local;
  float z_local;
};
 
class BtlLocalRecoValidation : public DQMEDAnalyzer {
public:
  explicit BtlLocalRecoValidation(const edm::ParameterSet&);
  ~BtlLocalRecoValidation() override;
 
  static void fillDescriptions(edm::ConfigurationDescriptions& descriptions);
 
private:
  void bookHistograms(DQMStore::IBooker&, edm::Run const&, edm::EventSetup const&) override;
 
  void analyze(const edm::Event&, const edm::EventSetup&) override;
 
  // ------------ member data ------------
 
  const std::string folder_;
  const float hitMinEnergy_;
 
  edm::EDGetTokenT<FTLRecHitCollection> btlRecHitsToken_;
  edm::EDGetTokenT<CrossingFrame<PSimHit> > btlSimHitsToken_;
  edm::EDGetTokenT<FTLClusterCollection> btlRecCluToken_;
 
  // --- histograms declaration
 
  MonitorElement* meNhits_;
 
  MonitorElement* meHitEnergy_;
  MonitorElement* meHitTime_;
 
  MonitorElement* meOccupancy_;
 
  MonitorElement* meHitX_;
  MonitorElement* meHitY_;
  MonitorElement* meHitZ_;
  MonitorElement* meHitPhi_;
  MonitorElement* meHitEta_;
 
  MonitorElement* meHitTvsE_;
  MonitorElement* meHitEvsPhi_;
  MonitorElement* meHitEvsEta_;
  MonitorElement* meHitEvsZ_;
  MonitorElement* meHitTvsPhi_;
  MonitorElement* meHitTvsEta_;
  MonitorElement* meHitTvsZ_;
  MonitorElement* meHitLongPos_;
  MonitorElement* meHitLongPosErr_;
 
  MonitorElement* meTimeRes_;
  MonitorElement* meEnergyRes_;
  MonitorElement* meTresvsE_;
  MonitorElement* meEresvsE_;
 
  MonitorElement* meCluTime_;
  MonitorElement* meCluEnergy_;
  MonitorElement* meCluPhi_;
  MonitorElement* meCluEta_;
  MonitorElement* meCluHits_;
  MonitorElement* meCluZvsPhi_;
};
 
// ------------ constructor and destructor --------------
BtlLocalRecoValidation::BtlLocalRecoValidation(const edm::ParameterSet& iConfig)
    : folder_(iConfig.getParameter<std::string>("folder")),
      hitMinEnergy_(iConfig.getParameter<double>("hitMinimumEnergy")) {
  btlRecHitsToken_ = consumes<FTLRecHitCollection>(iConfig.getParameter<edm::InputTag>("recHitsTag"));
  btlSimHitsToken_ = consumes<CrossingFrame<PSimHit> >(iConfig.getParameter<edm::InputTag>("simHitsTag"));
  btlRecCluToken_ = consumes<FTLClusterCollection>(iConfig.getParameter<edm::InputTag>("recCluTag"));
}
 
BtlLocalRecoValidation::~BtlLocalRecoValidation() {}
 
// ------------ method called for each event  ------------
void BtlLocalRecoValidation::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup) {
  using namespace edm;
  using namespace std;
  using namespace geant_units::operators;
 
  edm::ESHandle<MTDGeometry> geometryHandle;
  iSetup.get<MTDDigiGeometryRecord>().get(geometryHandle);
  const MTDGeometry* geom = geometryHandle.product();
 
  edm::ESHandle<MTDTopology> topologyHandle;
  iSetup.get<MTDTopologyRcd>().get(topologyHandle);
  const MTDTopology* topology = topologyHandle.product();
 
  auto btlRecHitsHandle = makeValid(iEvent.getHandle(btlRecHitsToken_));
  auto btlSimHitsHandle = makeValid(iEvent.getHandle(btlSimHitsToken_));
  auto btlRecCluHandle = makeValid(iEvent.getHandle(btlRecCluToken_));
  MixCollection<PSimHit> btlSimHits(btlSimHitsHandle.product());
 
  // --- Loop over the BTL SIM hits
  std::unordered_map<uint32_t, MTDHit> m_btlSimHits;
  for (auto const& simHit : btlSimHits) {
    // --- Use only hits compatible with the in-time bunch-crossing
    if (simHit.tof() < 0 || simHit.tof() > 25.)
      continue;
 
    DetId id = simHit.detUnitId();
 
    auto simHitIt = m_btlSimHits.emplace(id.rawId(), MTDHit()).first;
 
    // --- Accumulate the energy (in MeV) of SIM hits in the same detector cell
    (simHitIt->second).energy += convertUnitsTo(0.001_MeV, simHit.energyLoss());
 
    // --- Get the time of the first SIM hit in the cell
    if ((simHitIt->second).time == 0 || simHit.tof() < (simHitIt->second).time) {
      (simHitIt->second).time = simHit.tof();
 
      auto hit_pos = simHit.entryPoint();
      (simHitIt->second).x_local = hit_pos.x();
      (simHitIt->second).y_local = hit_pos.y();
      (simHitIt->second).z_local = hit_pos.z();
    }
 
  }  // simHit loop
 
  // --- Loop over the BTL RECO hits
  unsigned int n_reco_btl = 0;
 
  for (const auto& recHit : *btlRecHitsHandle) {
    BTLDetId detId = recHit.id();
    DetId geoId = detId.geographicalId(MTDTopologyMode::crysLayoutFromTopoMode(topology->getMTDTopologyMode()));
    const MTDGeomDet* thedet = geom->idToDet(geoId);
    if (thedet == nullptr)
      throw cms::Exception("BtlLocalRecoValidation") << "GeographicalID: " << std::hex << geoId.rawId() << " ("
                                                     << detId.rawId() << ") is invalid!" << std::dec << std::endl;
    const ProxyMTDTopology& topoproxy = static_cast<const ProxyMTDTopology&>(thedet->topology());
    const RectangularMTDTopology& topo = static_cast<const RectangularMTDTopology&>(topoproxy.specificTopology());
 
    Local3DPoint local_point(0., 0., 0.);
    local_point = topo.pixelToModuleLocalPoint(local_point, detId.row(topo.nrows()), detId.column(topo.nrows()));
    const auto& global_point = thedet->toGlobal(local_point);
 
    meHitEnergy_->Fill(recHit.energy());
    meHitTime_->Fill(recHit.time());
    meHitLongPos_->Fill(recHit.position());
    meHitLongPosErr_->Fill(recHit.positionError());
 
    meOccupancy_->Fill(global_point.z(), global_point.phi());
 
    meHitX_->Fill(global_point.x());
    meHitY_->Fill(global_point.y());
    meHitZ_->Fill(global_point.z());
    meHitPhi_->Fill(global_point.phi());
    meHitEta_->Fill(global_point.eta());
 
    meHitTvsE_->Fill(recHit.energy(), recHit.time());
    meHitEvsPhi_->Fill(global_point.phi(), recHit.energy());
    meHitEvsEta_->Fill(global_point.eta(), recHit.energy());
    meHitEvsZ_->Fill(global_point.z(), recHit.energy());
    meHitTvsPhi_->Fill(global_point.phi(), recHit.time());
    meHitTvsEta_->Fill(global_point.eta(), recHit.time());
    meHitTvsZ_->Fill(global_point.z(), recHit.time());
 
    // Resolution histograms
    if (m_btlSimHits.count(detId.rawId()) == 1 && m_btlSimHits[detId.rawId()].energy > hitMinEnergy_) {
      float time_res = recHit.time() - m_btlSimHits[detId.rawId()].time;
      float energy_res = recHit.energy() - m_btlSimHits[detId.rawId()].energy;
 
      meTimeRes_->Fill(time_res);
      meEnergyRes_->Fill(energy_res);
 
      meTresvsE_->Fill(m_btlSimHits[detId.rawId()].energy, time_res);
      meEresvsE_->Fill(m_btlSimHits[detId.rawId()].energy, energy_res);
    }
 
    n_reco_btl++;
 
  }  // recHit loop
 
  if (n_reco_btl > 0)
    meNhits_->Fill(log10(n_reco_btl));
 
  // --- Loop over the BTL RECO clusters ---
  for (const auto& DetSetClu : *btlRecCluHandle) {
    for (const auto& cluster : DetSetClu) {
      if (cluster.energy() < hitMinEnergy_)
        continue;
      BTLDetId cluId = cluster.id();
      DetId detIdObject(cluId);
      const auto& genericDet = geom->idToDetUnit(detIdObject);
      if (genericDet == nullptr) {
        throw cms::Exception("BtlLocalRecoValidation")
            << "GeographicalID: " << std::hex << cluId << " is invalid!" << std::dec << std::endl;
      }
 
      const ProxyMTDTopology& topoproxy = static_cast<const ProxyMTDTopology&>(genericDet->topology());
      const RectangularMTDTopology& topo = static_cast<const RectangularMTDTopology&>(topoproxy.specificTopology());
 
      Local3DPoint local_point(cluster.x() * 5.7, cluster.y() * 0.3, 0.);
      local_point = topo.pixelToModuleLocalPoint(local_point, cluId.row(topo.nrows()), cluId.column(topo.ncolumns()));
      const auto& global_point = genericDet->toGlobal(local_point);
 
      meCluEnergy_->Fill(cluster.energy());
      meCluTime_->Fill(cluster.time());
      meCluPhi_->Fill(global_point.phi());
      meCluEta_->Fill(global_point.eta());
      meCluZvsPhi_->Fill(global_point.z(), global_point.phi());
      meCluHits_->Fill(cluster.size());
    }
  }
}
 
// ------------ method for histogram booking ------------
void BtlLocalRecoValidation::bookHistograms(DQMStore::IBooker& ibook,
                                            edm::Run const& run,
                                            edm::EventSetup const& iSetup) {
  ibook.setCurrentFolder(folder_);
 
  // --- histograms booking
 
  meNhits_ = ibook.book1D("BtlNhits", "Number of BTL RECO hits;log_{10}(N_{RECO})", 100, 0., 5.25);
 
  meHitEnergy_ = ibook.book1D("BtlHitEnergy", "BTL RECO hits energy;E_{RECO} [MeV]", 100, 0., 20.);
  meHitTime_ = ibook.book1D("BtlHitTime", "BTL RECO hits ToA;ToA_{RECO} [ns]", 100, 0., 25.);
 
  meOccupancy_ = ibook.book2D(
      "BtlOccupancy", "BTL RECO hits occupancy;Z_{RECO} [cm]; #phi_{RECO} [rad]", 65, -260., 260., 126, -3.2, 3.2);
 
  meHitX_ = ibook.book1D("BtlHitX", "BTL RECO hits X;X_{RECO} [cm]", 60, -120., 120.);
  meHitY_ = ibook.book1D("BtlHitY", "BTL RECO hits Y;Y_{RECO} [cm]", 60, -120., 120.);
  meHitZ_ = ibook.book1D("BtlHitZ", "BTL RECO hits Z;Z_{RECO} [cm]", 100, -260., 260.);
  meHitPhi_ = ibook.book1D("BtlHitPhi", "BTL RECO hits #phi;#phi_{RECO} [rad]", 126, -3.2, 3.2);
  meHitEta_ = ibook.book1D("BtlHitEta", "BTL RECO hits #eta;#eta_{RECO}", 100, -1.55, 1.55);
 
  meHitTvsE_ =
      ibook.bookProfile("BtlHitTvsE", "BTL RECO ToA vs energy;E_{RECO} [MeV];ToA_{RECO} [ns]", 50, 0., 20., 0., 100.);
  meHitEvsPhi_ = ibook.bookProfile(
      "BtlHitEvsPhi", "BTL RECO energy vs #phi;#phi_{RECO} [rad];E_{RECO} [MeV]", 50, -3.2, 3.2, 0., 100.);
  meHitEvsEta_ = ibook.bookProfile(
      "BtlHitEvsEta", "BTL RECO energy vs #eta;#eta_{RECO};E_{RECO} [MeV]", 50, -1.55, 1.55, 0., 100.);
  meHitEvsZ_ =
      ibook.bookProfile("BtlHitEvsZ", "BTL RECO energy vs Z;Z_{RECO} [cm];E_{RECO} [MeV]", 50, -260., 260., 0., 100.);
  meHitTvsPhi_ = ibook.bookProfile(
      "BtlHitTvsPhi", "BTL RECO ToA vs #phi;#phi_{RECO} [rad];ToA_{RECO} [ns]", 50, -3.2, 3.2, 0., 100.);
  meHitTvsEta_ =
      ibook.bookProfile("BtlHitTvsEta", "BTL RECO ToA vs #eta;#eta_{RECO};ToA_{RECO} [ns]", 50, -1.6, 1.6, 0., 100.);
  meHitTvsZ_ =
      ibook.bookProfile("BtlHitTvsZ", "BTL RECO ToA vs Z;Z_{RECO} [cm];ToA_{RECO} [ns]", 50, -260., 260., 0., 100.);
  meHitLongPos_ = ibook.book1D("BtlLongPos", "BTL RECO hits longitudinal position;long. pos._{RECO}", 100, -10, 10);
  meHitLongPosErr_ =
      ibook.book1D("BtlLongPosErr", "BTL RECO hits longitudinal position error; long. pos. error_{RECO}", 100, -1, 1);
 
  meTimeRes_ = ibook.book1D("BtlTimeRes", "BTL time resolution;T_{RECO} - T_{SIM} [ns]", 100, -0.5, 0.5);
  meEnergyRes_ = ibook.book1D("BtlEnergyRes", "BTL energy resolution;E_{RECO} - E_{SIM} [MeV]", 100, -0.5, 0.5);
 
  meTresvsE_ = ibook.bookProfile(
      "BtlTresvsE", "BTL time resolution vs E;E_{SIM} [MeV];T_{RECO}-T_{SIM} [ns]", 50, 0., 20., 0., 100.);
  meEresvsE_ = ibook.bookProfile(
      "BtlEresvsE", "BTL energy resolution vs E;E_{SIM} [MeV];E_{RECO}-E_{SIM} [MeV]", 50, 0., 20., 0., 100.);
  meCluTime_ = ibook.book1D("BtlCluTime", "BTL cluster time ToA;ToA [ns]", 250, 0, 25);
  meCluEnergy_ = ibook.book1D("BtlCluEnergy", "BTL cluster energy;E_{RECO} [MeV]", 100, 0, 20);
  meCluPhi_ = ibook.book1D("BtlCluPhi", "BTL cluster #phi;#phi_{RECO} [rad]", 144, -3.2, 3.2);
  meCluEta_ = ibook.book1D("BtlCluEta", "BTL cluster #eta;#eta_{RECO}", 100, -1.6, 1.6);
  meCluHits_ = ibook.book1D("BtlCluHitNumber", "BTL hits per cluster; Cluster size", 10, 0, 10);
  meCluZvsPhi_ = ibook.book2D(
      "BtlOccupancy", "BTL cluster Z vs #phi;Z_{RECO} [cm]; #phi_{RECO} [rad]", 144, -260., 260., 50, -3.2, 3.2);
}
 
// ------------ method fills 'descriptions' with the allowed parameters for the module  ------------
void BtlLocalRecoValidation::fillDescriptions(edm::ConfigurationDescriptions& descriptions) {
  edm::ParameterSetDescription desc;
 
  desc.add<std::string>("folder", "MTD/BTL/LocalReco");
  desc.add<edm::InputTag>("recHitsTag", edm::InputTag("mtdRecHits", "FTLBarrel"));
  desc.add<edm::InputTag>("simHitsTag", edm::InputTag("mix", "g4SimHitsFastTimerHitsBarrel"));
  desc.add<edm::InputTag>("recCluTag", edm::InputTag("mtdClusters", "FTLBarrel"));
  desc.add<double>("hitMinimumEnergy", 1.);  // [MeV]
 
  descriptions.add("btlLocalReco", desc);
}
 
DEFINE_FWK_MODULE(BtlLocalRecoValidation);