/data/refman/pasoursint/CMSSW_6_1_2_SLHC2/src/RecoLocalCalo/Castor/src/CastorCellProducer.cc

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// -*- C++ -*-
//
// Package:    Castor
// Class:      CastorCellProducer
// 

//
// Original Author:  Hans Van Haevermaet, Benoit Roland
//         Created:  Wed Jul  9 14:00:40 CEST 2008
// $Id: CastorCellProducer.cc,v 1.7 2010/07/06 16:45:54 hvanhaev Exp $
//
//


// system include 
#include <memory>
#include <vector>
#include <iostream>
#include <TMath.h>
#include <TRandom3.h>

// user include 
#include "FWCore/Framework/interface/Frameworkfwd.h"
#include "FWCore/Framework/interface/EDProducer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "FWCore/ParameterSet/interface/ParameterSet.h"
#include "DataFormats/Math/interface/Point3D.h"

// Castor Object include
#include "DataFormats/CastorReco/interface/CastorCell.h"
#include "DataFormats/HcalRecHit/interface/CastorRecHit.h"
#include "DataFormats/HcalRecHit/interface/HcalRecHitCollections.h"

//
// class declaration
//

class CastorCellProducer : public edm::EDProducer {
   public:
      explicit CastorCellProducer(const edm::ParameterSet&);
      ~CastorCellProducer();

   private:
      virtual void beginJob() ;
      virtual void produce(edm::Event&, const edm::EventSetup&);
      virtual void endJob() ;
      
      // member data
      typedef math::XYZPointD Point;
      typedef ROOT::Math::RhoZPhiPoint CellPoint;
      typedef std::vector<reco::CastorCell> CastorCellCollection;
      std::string input_;
};

//
// constants, enums and typedefs
//

const double MYR2D = 180/M_PI;

//
// static data member definitions
//

//
// constructor and destructor
//

CastorCellProducer::CastorCellProducer(const edm::ParameterSet& iConfig) :
  input_(iConfig.getUntrackedParameter<std::string>("inputprocess","castorreco"))
{
  // register your products
  produces<CastorCellCollection>();
  // now do what ever other initialization is needed
}


CastorCellProducer::~CastorCellProducer()
{
   // do anything here that needs to be done at desctruction time
   // (e.g. close files, deallocate resources etc.)
}


//
// member functions
//

// ------------ method called to produce the data  ------------

void CastorCellProducer::produce(edm::Event& iEvent, const edm::EventSetup& iSetup) {

  using namespace edm;
  using namespace reco;
  using namespace TMath;
  
  // Produce CastorCells from CastorRecHits

  edm::Handle<CastorRecHitCollection> InputRecHits;
  iEvent.getByLabel(input_, InputRecHits);
    
  std::auto_ptr<CastorCellCollection> OutputCells (new CastorCellCollection);
   
  // looping over all CastorRecHits

  LogDebug("CastorCellProducer")
    <<"1. entering CastorCellProducer ";

  for (size_t i = 0; i < InputRecHits->size(); ++i) {
    const CastorRecHit & rh = (*InputRecHits)[i];
    int sector = rh.id().sector();
    int module = rh.id().module();
    double energy = rh.energy();
    int zside = rh.id().zside();
    
    // define CastorCell properties
    double zCell=0.;
    double phiCell;
    double rhoCell;
      
    // set z position of the cell
    if (module < 3) {
      // starting in EM section
      if (module == 1) zCell = 14415;
      if (module == 2) zCell = 14464; 
    } else {
      // starting in HAD section
      zCell = 14534 + (module - 3)*92;
    }
      
    // set phi position of the cell
    double castorphi[16];
    for (int j = 0; j < 16; j++) {
      castorphi[j] = -2.94524 + j*0.3927;
    }
    if (sector > 8) {
      phiCell = castorphi[sector - 9];
    } else {
      phiCell = castorphi[sector + 7];
    }
      
    // add condition to select in eta sides
    if (zside <= 0) zCell = -1*zCell;
      
    // set rho position of the cell (inner radius 3.7cm, outer radius 14cm)
    rhoCell = 88.5;
    
    // store cell position
    CellPoint tempcellposition(rhoCell,zCell,phiCell);
    Point cellposition(tempcellposition);
    
    LogDebug("CastorCellProducer")
      <<"cell number: "<<i+1<<std::endl
      <<"rho: "<<cellposition.rho()<<" phi: "<<cellposition.phi()*MYR2D<<" eta: "<<cellposition.eta()<<std::endl
      <<"x: "<<cellposition.x()<<" y: "<<cellposition.y()<<" z: "<<cellposition.z();
    
    if (energy > 0.) {
      CastorCell newCell(energy,cellposition);
      OutputCells->push_back(newCell);
    }
      
  } // end loop over CastorRecHits 
    
  LogDebug("CastorCellProducer")
    <<"total number of cells in the event: "<<InputRecHits->size();

  iEvent.put(OutputCells);


}

// ------------ method called once each job just before starting event loop  ------------
void CastorCellProducer::beginJob() {
  LogDebug("CastorCellProducer")
    <<"Starting CastorCellProducer";
}

// ------------ method called once each job just after ending the event loop  ------------
void CastorCellProducer::endJob() {
  LogDebug("CastorCellProducer")
    <<"Ending CastorCellProducer";
}

//define this as a plug-in
DEFINE_FWK_MODULE(CastorCellProducer);