/data/refman/pasoursint/CMSSW_4_1_8_patch13/src/DataFormats/TrackerRecHit2D/src/SiTrackerMultiRecHit.cc

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#include "DataFormats/TrackerRecHit2D/interface/SiTrackerMultiRecHit.h"
#include "FWCore/MessageLogger/interface/MessageLogger.h"

using namespace std;
using namespace edm;

SiTrackerMultiRecHit::SiTrackerMultiRecHit(const LocalPoint& pos, const LocalError& err, const DetId& id, const std::vector< std::pair<const TrackingRecHit*, float> >& aHitMap):
        BaseSiTrackerRecHit2DLocalPos(pos,err,id)       
{
        for(std::vector<std::pair<const TrackingRecHit*, float> >::const_iterator ihit = aHitMap.begin(); ihit != aHitMap.end(); ihit++){
                theHits.push_back(ihit->first->clone());
                theWeights.push_back(ihit->second);
        }
}

float SiTrackerMultiRecHit::weight(unsigned int i) const {
        if (i < theWeights.size()) return theWeights[i];
        edm::LogError("SiTrackerMultiRecHit") << "You are requesting a the weight for a hit out of range, returning 0";
        return 0; 
}


bool SiTrackerMultiRecHit::sharesInput(const TrackingRecHit* other,
                                       SharedInputType what) const
{
  if(geographicalId() != other->geographicalId()&& what==all ) return false;
  vector<const TrackingRecHit*> otherhits=other->recHits();
  if(what==all){
    if(theHits.size()!=other->recHits().size())return false;
    for(vector<const TrackingRecHit*>::iterator otherhit=otherhits.begin();otherhit!=otherhits.end();++otherhit){
      bool found=false;
      for(OwnVector<TrackingRecHit>::const_iterator hit=theHits.begin();hit!=theHits.end();++hit){
        if((hit)->sharesInput(*otherhit,all)){
          found=true;
          break;
        }
      }
      if(found==false){
        return false;
      }
    }
    return true;
  }
  else{
    for(OwnVector<TrackingRecHit>::const_iterator hit=theHits.begin();hit!=theHits.end();++hit){
      if(otherhits.size()!=0){ 
        for(vector<const TrackingRecHit*>::iterator otherhit=otherhits.begin();otherhit!=otherhits.end();++otherhit){
          if((hit)->sharesInput(*otherhit,some))return true;
        }
      }
      else{//otherwise it should be a simple rechit
        if((hit)->sharesInput(other,some))return true;
      } 
    }
    return false;
  }
}


vector<const TrackingRecHit*> SiTrackerMultiRecHit::recHits() const{
         vector<const TrackingRecHit*> myhits;
         for(edm::OwnVector<TrackingRecHit>::const_iterator ihit = theHits.begin(); ihit != theHits.end(); ihit++) {
                 myhits.push_back(&*ihit);
         }
  return myhits;
}

vector<TrackingRecHit*> SiTrackerMultiRecHit::recHits() {
  //        vector<TrackingRecHit*> myhits;
//         for(edm::OwnVector<TrackingRecHit>::const_iterator ihit = theHits.begin(); ihit != theHits.end(); ihit++) {
//                 const TrackingRecHit* ahit = &(*ihit);
//                 myhits.push_back(const_cast<TrackingRecHit*>(ahit));
//         }
        return theHits.data();
}