AggregateVertexAna_module.cc

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////////////////////////////////////////////////////////////////////////
//
// AggregateVertexAna module
//
// brebel@fnal.gov
//
////////////////////////////////////////////////////////////////////////

// Framework includes
#include "art/Framework/Principal/Event.h" 
#include "fhiclcpp/ParameterSet.h" 
#include "art/Framework/Principal/Handle.h" 
#include "art/Framework/Services/Registry/ServiceHandle.h" 
#include "art_root_io/TFileService.h"
#include "messagefacility/MessageLogger/MessageLogger.h" 
#include "art/Framework/Core/ModuleMacros.h"
#include "art/Framework/Core/EDAnalyzer.h"
#include "canvas/Persistency/Common/FindManyP.h"
#include "canvas/Persistency/Common/Ptr.h"
#include "canvas/Persistency/Common/PtrVector.h"

#include <string>

#include "lardataobj/RecoBase/Track.h"
#include "lardataobj/RecoBase/Vertex.h"
#include "lardataobj/RecoBase/EndPoint2D.h"
#include "lardataobj/RecoBase/Hit.h"

#include "TH1.h"
#include "TH2.h"

namespace vertex {

  class AggregateVertexAna : public art::EDAnalyzer {

  public:

    explicit AggregateVertexAna(fhicl::ParameterSet const& pset);
    ~AggregateVertexAna();

  private:

    void analyze (const art::Event& evt);
    void beginJob();

    TH1F* HnTrksVtx;
    TH1F* HnVtxes;
    TH1F* HVtxSep;
    TH2F* HVtxRZ;

    std::string fDBScanModuleLabel;
    std::string fHoughModuleLabel;
    std::string fHitModuleLabel;
    std::string fTrack3DModuleLabel;
    std::string fEndPointModuleLabel;
    std::string fVertexModuleLabel;

    art::PtrVector<recob::Hit>        fhitlist;
    art::PtrVector<recob::EndPoint2D> feplist;
    art::PtrVector<recob::Track>      ftracklist;
    art::PtrVector<recob::Vertex>     fVertexlist;


  }; // class AggregateVertexAna

}  // Namespace aggr

namespace vertex{

  //-----------------------------------------------
  AggregateVertexAna::AggregateVertexAna(fhicl::ParameterSet const& pset)
    : EDAnalyzer(pset)
    , fHitModuleLabel     (pset.get< std::string >("FFFTHitModuleLabel"))
    , fTrack3DModuleLabel (pset.get< std::string >("Track3DModuleLabel"))
    , fEndPointModuleLabel(pset.get< std::string >("EndPointModuleLabel"))
    , fVertexModuleLabel  (pset.get< std::string >("VertexModuleLabel"))
  {


  }

  //-----------------------------------------------
  AggregateVertexAna::~AggregateVertexAna()
  {
  }

  //-----------------------------------------------
  void AggregateVertexAna::beginJob()
  {
    art::ServiceHandle<art::TFileService const> tfs;

    HnVtxes   = tfs->make<TH1F>("Num Vertices","Num Vertices",8,-0.5,7.5);
    HVtxSep   = tfs->make<TH1F>("Vertices spacing","Vertices spacing",20,0.001,5.0);
    HVtxRZ    = tfs->make<TH2F>("Vtx in RZ","Vtx in RZ",20,-50.0,+50.0,20,0.0,50.0);
    HnTrksVtx = tfs->make<TH1F>("Tracks per vtx","Tracks per vtx",8,-0.5,7.5);

    return;
  }

  //-----------------------------------------------
  void AggregateVertexAna::analyze(const art::Event& evt)
  {
    art::Handle< std::vector<recob::Hit> > hitListHandle;
    evt.getByLabel(fHitModuleLabel,hitListHandle);
    for(unsigned int ii = 0; ii < hitListHandle->size(); ++ii){
      art::Ptr<recob::Hit> hit(hitListHandle, ii);
      fhitlist.push_back(hit); // class member
    }

    art::Handle< std::vector<recob::EndPoint2D> > epListHandle;
    evt.getByLabel(fEndPointModuleLabel,epListHandle);
    for(unsigned int ii = 0; ii < epListHandle->size(); ++ii){
      art::Ptr<recob::EndPoint2D> ep(epListHandle, ii);
      feplist.push_back(ep); // class member
    }

    art::Handle< std::vector<recob::Track> > trackListHandle;
    evt.getByLabel(fTrack3DModuleLabel,trackListHandle);
    for(unsigned int ii = 0; ii < trackListHandle->size(); ++ii){
      art::Ptr<recob::Track> track(trackListHandle, ii);
      ftracklist.push_back(track); // class member
    }

    art::Handle< std::vector<recob::Vertex> > vertexListHandle;
    evt.getByLabel(fVertexModuleLabel,vertexListHandle);
    for(unsigned int ii = 0; ii < vertexListHandle->size(); ++ii){
      art::Ptr<recob::Vertex> vertex(vertexListHandle, ii);
      fVertexlist.push_back(vertex); // class member
    }

    HnVtxes->Fill(feplist.size(),1);

    art::FindManyP<recob::Track> fmt(vertexListHandle, evt, fVertexModuleLabel);
    art::FindManyP<recob::Hit>   fmh(vertexListHandle, evt, fVertexModuleLabel);

    for(size_t v1 = 0; v1 < fVertexlist.size(); ++v1)  {

      std::vector< art::Ptr<recob::Track> > tvlist = fmt.at(v1);

      HnTrksVtx->Fill(tvlist.size(),1);

      if(tvlist.size() < 1) continue;

      std::vector< art::Ptr<recob::Hit> > hitvlist = fmh.at(v1);

      // Hits no longer has XYZ() method. To get 3d hit position info I'm going to have to
      // loop on all the SpacePoints and loop on all Hits from there till it matches
      // one from this vertex. This affects the two Fill() efforts below. EC, 19-Nov-2010.
      art::PtrVector<recob::Hit>::const_iterator hitv = hitvlist.begin();

      for(size_t v2 = v1+1; v2 < fVertexlist.size(); ++v2){

        std::vector< art::Ptr<recob::Hit> > hitvlist2 = fmh.at(v2);

        std::vector< art::Ptr<recob::Hit> >::const_iterator hitv2 = hitvlist2.begin();

        // These two whiles should be each precisely one iteration long.
        while( hitv != hitvlist.end() ){
          while( hitv2 != hitvlist2.end() ){
            TVector3 dist;
            mf::LogInfo("AggregateVertexAna") << "AggregateVertexAna: dist is " << dist.Mag() << ".";
            HVtxSep->Fill(dist.Mag(),1);
            hitv2++;
          }
          hitv++;
        }// end loop over hitv entries

      }// end loop over v2
    }// end loop over v1

    return;
  }// end analyze
}// end namespace

namespace vertex{

  DEFINE_ART_MODULE(AggregateVertexAna)

}