CSCSegtoRPC.cc

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#include "Geometry/RPCGeometry/interface/RPCGeometry.h"
#include "Geometry/CSCGeometry/interface/CSCGeometry.h"
#include "DataFormats/CSCRecHit/interface/CSCSegmentCollection.h"
#include "Geometry/CommonDetUnit/interface/GeomDet.h"
#include "Geometry/Records/interface/MuonGeometryRecord.h"
#include "Geometry/CommonTopologies/interface/TrapezoidalStripTopology.h"
#include "FWCore/Framework/interface/ESHandle.h"
#include "Geometry/RPCGeometry/interface/RPCGeomServ.h"
#include "DataFormats/RPCRecHit/interface/RPCRecHit.h"
#include "DataFormats/RPCRecHit/interface/RPCRecHitCollection.h"
#include "RecoLocalMuon/RPCRecHit/interface/CSCSegtoRPC.h"
#include "RecoLocalMuon/RPCRecHit/src/CSCStationIndex.h"
#include "RecoLocalMuon/RPCRecHit/src/CSCObjectMap.h"

CSCSegtoRPC::CSCSegtoRPC(const CSCSegmentCollection * allCSCSegments, const edm::EventSetup& iSetup, bool debug, double eyr){
  
  edm::ESHandle<RPCGeometry> rpcGeo;
  edm::ESHandle<CSCGeometry> cscGeo;
  edm::ESHandle<CSCObjectMap> cscMap;
  
  iSetup.get<MuonGeometryRecord>().get(rpcGeo);
  iSetup.get<MuonGeometryRecord>().get(cscGeo);
  iSetup.get<MuonGeometryRecord>().get(cscMap);
  
  MaxD=80.;

  if(debug) std::cout<<"CSC \t Number of CSC Segments in this event = "<<allCSCSegments->size()<<std::endl;

  _ThePoints = std::make_unique<RPCRecHitCollection>();

  if(allCSCSegments->size()==0){
    if(debug) std::cout<<"CSC 0 segments skiping event"<<std::endl;
  }else {
    std::map<CSCDetId,int> CSCSegmentsCounter;
    CSCSegmentCollection::const_iterator segment;
      
    int segmentsInThisEventInTheEndcap=0;
      
    for (segment = allCSCSegments->begin();segment!=allCSCSegments->end(); ++segment){
      CSCSegmentsCounter[segment->cscDetId()]++;
      segmentsInThisEventInTheEndcap++;
    }    
      
    if(debug) std::cout<<"CSC \t loop over all the CSCSegments "<<std::endl;
    for (segment = allCSCSegments->begin();segment!=allCSCSegments->end(); ++segment){
      CSCDetId CSCId = segment->cscDetId();
    
      if(debug) std::cout<<"CSC \t \t This Segment is in Chamber id: "<<CSCId<<std::endl;
      if(debug) std::cout<<"CSC \t \t Number of segments in this CSC = "<<CSCSegmentsCounter[CSCId]<<std::endl;
      if(debug) std::cout<<"CSC \t \t Is the only one in this CSC? is not ind the ring 1 or station 4? Are there more than 2 segments in the event?"<<std::endl;

      if(CSCSegmentsCounter[CSCId]==1 && CSCId.station()!=4 && CSCId.ring()!=1 && allCSCSegments->size()>=2){
    if(debug) std::cout<<"CSC \t \t yes"<<std::endl;
    int cscEndCap = CSCId.endcap();
    int cscStation = CSCId.station();
    int cscRing = CSCId.ring();
    int rpcRegion = 1; if(cscEndCap==2) rpcRegion= -1;//Relacion entre las endcaps
    int rpcRing = cscRing;
    if(cscRing==4)rpcRing =1;
    int rpcStation = cscStation;
    int rpcSegment = CSCId.chamber();
    
    LocalPoint segmentPosition= segment->localPosition();
    LocalVector segmentDirection=segment->localDirection();
    float dz=segmentDirection.z();

    if(debug) std::cout<<"CSC \t \t \t Information about the segment" 
               <<"RecHits ="<<segment->nRecHits()
               <<"Angle ="<<acos(dz)*180/3.1415926<<std::endl;
              
    if(debug) std::cout<<"CSC \t \t Is a good Segment? dim = 4, 4 <= nRecHits <= 10 Incident angle int range 45 < "<<acos(dz)*180/3.1415926<<" < 135? "<<std::endl;

    if((segment->dimension()==4) && (segment->nRecHits()<=10 && segment->nRecHits()>=4)){
      //&& acos(dz)*180/3.1415926 > 45. && acos(dz)*180/3.1415926 < 135.){ 
      //&& segment->chi2()< ??)Add 3 segmentes in the endcaps???


      if(debug) std::cout<<"CSC \t \t yes"<<std::endl;
      if(debug) std::cout<<"CSC \t \t CSC Segment Dimension "<<segment->dimension()<<std::endl; 
        
      float Xo=segmentPosition.x();
      float Yo=segmentPosition.y();
      float Zo=segmentPosition.z();
      float dx=segmentDirection.x();
      float dy=segmentDirection.y();
      float dz=segmentDirection.z();

      if(debug) std::cout<<"Creating the CSCIndex"<<std::endl;
      CSCStationIndex theindex(rpcRegion,rpcStation,rpcRing,rpcSegment);
      if(debug) std::cout<<"Getting the Rolls for the given index"<<std::endl;
      std::set<RPCDetId> rollsForThisCSC = cscMap->getRolls(theindex);
      if(debug) std::cout<<"CSC \t \t Getting chamber from Geometry"<<std::endl;
      const CSCChamber* TheChamber=cscGeo->chamber(CSCId); 
      if(debug) std::cout<<"CSC \t \t Getting ID from Chamber"<<std::endl;
      const CSCDetId TheId=TheChamber->id();

      if(debug) std::cout<<"CSC \t \t Number of rolls for this CSC = "<<rollsForThisCSC.size()<<std::endl;

      if(debug) std::cout<<"CSC \t \t Printing The Id"<<TheId<<std::endl;

      if(rpcRing!=1&&rpcStation!=4){//They don't exist!
      
        assert(rollsForThisCSC.size()>=1);

        if(debug) std::cout<<"CSC \t \t Loop over all the rolls asociated to this CSC"<<std::endl;      
        for (std::set<RPCDetId>::iterator iteraRoll = rollsForThisCSC.begin();iteraRoll != rollsForThisCSC.end(); iteraRoll++){
          const RPCRoll* rollasociated = rpcGeo->roll(*iteraRoll);
          RPCDetId rpcId = rollasociated->id();
        
          if(debug) std::cout<<"CSC \t \t \t We are in the roll getting the surface"<<rpcId<<std::endl;
          const BoundPlane & RPCSurface = rollasociated->surface(); 

          if(debug) std::cout<<"CSC \t \t \t RollID: "<<rpcId<<std::endl;
        
          if(debug) std::cout<<"CSC \t \t \t Doing the extrapolation to this roll"<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t CSC Segment Direction in CSCLocal "<<segmentDirection<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t CSC Segment Point in CSCLocal "<<segmentPosition<<std::endl;  
        
          GlobalPoint CenterPointRollGlobal = RPCSurface.toGlobal(LocalPoint(0,0,0));
          if(debug) std::cout<<"CSC \t \t \t Center (0,0,0) of the Roll in Global"<<CenterPointRollGlobal<<std::endl;
          GlobalPoint CenterPointCSCGlobal = TheChamber->toGlobal(LocalPoint(0,0,0));
          if(debug) std::cout<<"CSC \t \t \t Center (0,0,0) of the CSC in Global"<<CenterPointCSCGlobal<<std::endl;
          GlobalPoint segmentPositionInGlobal=TheChamber->toGlobal(segmentPosition); //new way to convert to global
          if(debug) std::cout<<"CSC \t \t \t Segment Position in Global"<<segmentPositionInGlobal<<std::endl;
          LocalPoint CenterRollinCSCFrame = TheChamber->toLocal(CenterPointRollGlobal);

          if(debug){//to check CSC RPC phi relation!
        float rpcphi=0;
        float cscphi=0;
          
        (CenterPointRollGlobal.barePhi()<0)? 
          rpcphi = 2*3.141592+CenterPointRollGlobal.barePhi():rpcphi=CenterPointRollGlobal.barePhi();
          
        (CenterPointCSCGlobal.barePhi()<0)? 
          cscphi = 2*3.1415926536+CenterPointCSCGlobal.barePhi():cscphi=CenterPointCSCGlobal.barePhi();

        float df=fabs(cscphi-rpcphi); 
        float dr=fabs(CenterPointRollGlobal.perp()-CenterPointCSCGlobal.perp());
        float diffz=CenterPointRollGlobal.z()-CenterPointCSCGlobal.z();
        float dfg=df*180./3.14159265;

        if(debug) std::cout<<"CSC \t \t \t z of RPC="<<CenterPointRollGlobal.z()<<"z of CSC"<<CenterPointCSCGlobal.z()<<" dfg="<<dfg<<std::endl;
          
        RPCGeomServ rpcsrv(rpcId);
          
        if(dr>200.||fabs(dz)>55.||dfg>1.){ 
          //if(rpcRegion==1&&dfg>1.&&dr>100.){  
          if (debug) std::cout
            <<"\t \t \t CSC Station= "<<CSCId.station()
            <<" Ring= "<<CSCId.ring()
            <<" Chamber= "<<CSCId.chamber()
            <<" cscphi="<<cscphi*180/3.14159265
            <<"\t RPC Station= "<<rpcId.station()
            <<" ring= "<<rpcId.ring()
            <<" segment =-> "<<rpcsrv.segment()
            <<" rollphi="<<rpcphi*180/3.14159265
            <<"\t dfg="<<dfg
            <<" dz="<<diffz
            <<" dr="<<dr
            <<std::endl;
            
        }
          }
          
          float D=CenterRollinCSCFrame.z();
          
          float X=Xo+dx*D/dz;
          float Y=Yo+dy*D/dz;
          float Z=D;

          const TrapezoidalStripTopology* top_=dynamic_cast<const TrapezoidalStripTopology*>(&(rollasociated->topology()));
          LocalPoint xmin = top_->localPosition(0.);
          if(debug) std::cout<<"CSC \t \t \t xmin of this  Roll "<<xmin<<"cm"<<std::endl;
          LocalPoint xmax = top_->localPosition((float)rollasociated->nstrips());
          if(debug) std::cout<<"CSC \t \t \t xmax of this  Roll "<<xmax<<"cm"<<std::endl;
          float rsize = fabs( xmax.x()-xmin.x() );
          if(debug) std::cout<<"CSC \t \t \t Roll Size "<<rsize<<"cm"<<std::endl;
          float stripl = top_->stripLength();
          float stripw = top_->pitch();

          if(debug) std::cout<<"CSC \t \t \t Strip Lenght "<<stripl<<"cm"<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t Strip Width "<<stripw<<"cm"<<std::endl;

          if(debug) std::cout<<"CSC \t \t \t X Predicted in CSCLocal= "<<X<<"cm"<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t Y Predicted in CSCLocal= "<<Y<<"cm"<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t Z Predicted in CSCLocal= "<<Z<<"cm"<<std::endl;
      
          float extrapolatedDistance = sqrt((X-Xo)*(X-Xo)+(Y-Yo)*(Y-Yo)+(Z-Zo)*(Z-Zo));

          if(debug) std::cout<<"CSC \t \t \t Is the distance of extrapolation less than MaxD? ="<<extrapolatedDistance<<"cm"<<" MaxD="<<MaxD<<"cm"<<std::endl;
      
          if(extrapolatedDistance<=MaxD){ 

        if(debug) std::cout<<"CSC \t \t \t yes"<<std::endl;

        GlobalPoint GlobalPointExtrapolated=TheChamber->toGlobal(LocalPoint(X,Y,Z));
        if(debug) std::cout<<"CSC \t \t \t Point ExtraPolated in Global"<<GlobalPointExtrapolated<< std::endl;

          
        LocalPoint PointExtrapolatedRPCFrame = RPCSurface.toLocal(GlobalPointExtrapolated);

        if(debug) std::cout<<"CSC \t \t \t Point Extrapolated in RPCLocal"<<PointExtrapolatedRPCFrame<< std::endl;
        if(debug) std::cout<<"CSC \t \t \t Corner of the Roll = ("<<rsize*eyr<<","<<stripl*eyr<<")"<<std::endl;
        if(debug) std::cout<<"CSC \t \t \t Info About the Point Extrapolated in X Abs ("<<fabs(PointExtrapolatedRPCFrame.x())<<","
                   <<fabs(PointExtrapolatedRPCFrame.y())<<","<<fabs(PointExtrapolatedRPCFrame.z())<<")"<<std::endl;
        if(debug) std::cout<<"CSC \t \t \t dz="
                   <<fabs(PointExtrapolatedRPCFrame.z())<<" dx="
                   <<fabs(PointExtrapolatedRPCFrame.x())<<" dy="
                   <<fabs(PointExtrapolatedRPCFrame.y())<<std::endl;
          
        if(debug) std::cout<<"CSC \t \t \t Does the extrapolation go inside this roll????"<<std::endl;

        if(fabs(PointExtrapolatedRPCFrame.z()) < 1. && 
           fabs(PointExtrapolatedRPCFrame.x()) < rsize*eyr && 
           fabs(PointExtrapolatedRPCFrame.y()) < stripl*eyr){ 
          if(debug) std::cout<<"CSC \t \t \t \t yes"<<std::endl;
          if(debug) std::cout<<"CSC \t \t \t \t Creating the RecHit"<<std::endl;
          RPCRecHit RPCPoint(rpcId,0,PointExtrapolatedRPCFrame);
          if(debug) std::cout<<"CSC \t \t \t \t Clearing the vector"<<std::endl;    
          RPCPointVector.clear();
          if(debug) std::cout<<"CSC \t \t \t \t Pushing back"<<std::endl;   
          RPCPointVector.push_back(RPCPoint); 
          if(debug) std::cout<<"CSC \t \t \t \t Putting the vector"<<std::endl; 
          _ThePoints->put(rpcId,RPCPointVector.begin(),RPCPointVector.end());
        }
          }
        }
      }
    }
      }
    }
  }
}

CSCSegtoRPC::~CSCSegtoRPC(){

}