HGCalTriggerNtupleHGCClusters.cc

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#include <algorithm>
#include "DataFormats/L1THGCal/interface/HGCalCluster.h"
#include "DataFormats/L1THGCal/interface/HGCalMulticluster.h"
#include "DataFormats/ForwardDetId/interface/HGCalDetId.h"
#include "Geometry/Records/interface/CaloGeometryRecord.h"
#include "L1Trigger/L1THGCal/interface/HGCalTriggerGeometryBase.h"
#include "L1Trigger/L1THGCal/interface/HGCalTriggerNtupleBase.h"
#include "L1Trigger/L1THGCal/interface/HGCalTriggerTools.h"



class HGCalTriggerNtupleHGCClusters : public HGCalTriggerNtupleBase
{

  public:
    HGCalTriggerNtupleHGCClusters(const edm::ParameterSet& conf);
    ~HGCalTriggerNtupleHGCClusters() override{};
    void initialize(TTree&, const edm::ParameterSet&, edm::ConsumesCollector&&) final;
    void fill(const edm::Event& e, const edm::EventSetup& es) final;

  private:
    void clear() final;


    bool filter_clusters_in_multiclusters_;
    edm::EDGetToken clusters_token_, multiclusters_token_;
    HGCalTriggerTools triggerTools_;


    int cl_n_ ;
    std::vector<uint32_t> cl_id_;
    std::vector<float> cl_mipPt_;
    std::vector<float> cl_pt_;
    std::vector<float> cl_energy_;
    std::vector<float> cl_eta_;
    std::vector<float> cl_phi_;
    std::vector<int> cl_layer_;
    std::vector<int> cl_subdet_;
    std::vector<int> cl_cells_n_;
    std::vector<std::vector<uint32_t>> cl_cells_id_;   
    std::vector<uint32_t> cl_multicluster_id_;
    std::vector<float> cl_multicluster_pt_;


};

DEFINE_EDM_PLUGIN(HGCalTriggerNtupleFactory,
    HGCalTriggerNtupleHGCClusters,
    "HGCalTriggerNtupleHGCClusters" );


HGCalTriggerNtupleHGCClusters::
HGCalTriggerNtupleHGCClusters(const edm::ParameterSet& conf):HGCalTriggerNtupleBase(conf),
  filter_clusters_in_multiclusters_(conf.getParameter<bool>("FilterClustersInMulticlusters"))
{
}

void
HGCalTriggerNtupleHGCClusters::
initialize(TTree& tree, const edm::ParameterSet& conf, edm::ConsumesCollector&& collector)
{
  clusters_token_ = collector.consumes<l1t::HGCalClusterBxCollection>(conf.getParameter<edm::InputTag>("Clusters"));
  multiclusters_token_ = collector.consumes<l1t::HGCalMulticlusterBxCollection>(conf.getParameter<edm::InputTag>("Multiclusters"));

  tree.Branch("cl_n", &cl_n_, "cl_n/I");
  tree.Branch("cl_id", &cl_id_);
  tree.Branch("cl_mipPt", &cl_mipPt_);
  tree.Branch("cl_pt", &cl_pt_);
  tree.Branch("cl_energy", &cl_energy_);
  tree.Branch("cl_eta", &cl_eta_);
  tree.Branch("cl_phi", &cl_phi_);
  tree.Branch("cl_layer", &cl_layer_);
  tree.Branch("cl_subdet", &cl_subdet_);
  tree.Branch("cl_cells_n", &cl_cells_n_);
  tree.Branch("cl_cells_id", &cl_cells_id_);
  tree.Branch("cl_multicluster_id", &cl_multicluster_id_);
  tree.Branch("cl_multicluster_pt", &cl_multicluster_pt_);
}

void
HGCalTriggerNtupleHGCClusters::
fill(const edm::Event& e, const edm::EventSetup& es)
{

  // retrieve clusters
  edm::Handle<l1t::HGCalClusterBxCollection> clusters_h;
  e.getByToken(clusters_token_, clusters_h);
  const l1t::HGCalClusterBxCollection& clusters = *clusters_h;
  edm::Handle<l1t::HGCalMulticlusterBxCollection> multiclusters_h;
  e.getByToken(multiclusters_token_, multiclusters_h);
  const l1t::HGCalMulticlusterBxCollection& multiclusters = *multiclusters_h;

  // retrieve geometry
  edm::ESHandle<HGCalTriggerGeometryBase> geometry;
  es.get<CaloGeometryRecord>().get(geometry);

  triggerTools_.eventSetup(es);

  // Associate cells to clusters
  std::unordered_map<uint32_t, l1t::HGCalMulticlusterBxCollection::const_iterator> cluster2multicluster;
  for(auto mcl_itr=multiclusters.begin(0); mcl_itr!=multiclusters.end(0); mcl_itr++)
  {
    // loop on 2D clusters inside 3D clusters
    for(const auto& cl_ptr : mcl_itr->constituents())
    {
      cluster2multicluster.emplace(cl_ptr.second->detId(), mcl_itr);
    }
  }



  clear();
  for(auto cl_itr=clusters.begin(0); cl_itr!=clusters.end(0); cl_itr++)
  {
    auto mcl_itr = cluster2multicluster.find(cl_itr->detId());
    uint32_t mcl_id = (mcl_itr!=cluster2multicluster.end() ? mcl_itr->second->detId() : 0);
    float mcl_pt = (mcl_itr!=cluster2multicluster.end() ? mcl_itr->second->pt() : 0.);
    if(filter_clusters_in_multiclusters_ && mcl_id==0) continue;
    cl_n_++;
    cl_mipPt_.emplace_back(cl_itr->mipPt());
    // physical values 
    cl_pt_.emplace_back(cl_itr->pt());
    cl_energy_.emplace_back(cl_itr->energy());
    cl_eta_.emplace_back(cl_itr->eta());
    cl_phi_.emplace_back(cl_itr->phi());

    cl_id_.emplace_back(cl_itr->detId());
    cl_layer_.emplace_back(triggerTools_.layerWithOffset(cl_itr->detId()));
    cl_subdet_.emplace_back(cl_itr->subdetId());
    cl_cells_n_.emplace_back(cl_itr->constituents().size());
    // Retrieve indices of trigger cells inside cluster
    cl_cells_id_.emplace_back(cl_itr->constituents().size());
    std::transform(cl_itr->constituents_begin(), cl_itr->constituents_end(),
        cl_cells_id_.back().begin(), [](const std::pair<uint32_t,edm::Ptr<l1t::HGCalTriggerCell>>& id_tc){return id_tc.second->detId();}
        );
    cl_multicluster_id_.emplace_back(mcl_id);
    cl_multicluster_pt_.emplace_back(mcl_pt);
  }
}


void
HGCalTriggerNtupleHGCClusters::
clear()
{
  cl_n_ = 0;
  cl_id_.clear();
  cl_mipPt_.clear();
  cl_pt_.clear();
  cl_energy_.clear();
  cl_eta_.clear();
  cl_phi_.clear();
  cl_layer_.clear();
  cl_subdet_.clear();
  cl_cells_n_.clear();
  cl_cells_id_.clear();
  cl_multicluster_id_.clear();
  cl_multicluster_pt_.clear();
}