/afs/cern.ch/work/a/aaltunda/public/www/CMSSW_5_3_13_patch3/src/Geometry/ForwardGeometry/src/CastorTopology.cc

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#include "Geometry/ForwardGeometry/interface/CastorTopology.h"
#include <cmath>
#include <iostream>
#include <algorithm>

static const int MODULE_EM_MAX = 2;
static const int MODULE_HAD_MAX = 12;

CastorTopology::CastorTopology() :
   excludeEM_(false),
   excludeHAD_(false),
   excludeZP_(false),
   excludeZN_(false),
   firstEMModule_(1),
   lastEMModule_(2),
   firstHADModule_(3),
   lastHADModule_(14)
{
}

bool 
CastorTopology::valid(const HcalCastorDetId& id) const 
{
   return ( validRaw( id )  &&
            !isExcluded( id )  ) ;
}

bool CastorTopology::isExcluded(const HcalCastorDetId& id) const {
  bool exed=false;

  //check the for side exclusions
  switch(id.zside()){
  case( 1): exed = excludeZP_; break;
  case(-1): exed = excludeZN_; break;
  default: exed = false;
  }

  // check for section exclutions
  switch (id.section()) {
  case(HcalCastorDetId::EM)  : exed = excludeEM_; break; 
  case(HcalCastorDetId::HAD) : exed = excludeHAD_; break; 
  default: exed = false;
  }

  // check the entire list
  if (!exed && !exclusionList_.empty()) {
    std::vector<HcalCastorDetId>::const_iterator 
      i=std::lower_bound(exclusionList_.begin(),exclusionList_.end(),id);
    if (i!=exclusionList_.end() && *i==id) exed=true;
  }
  return exed;
}

void CastorTopology::exclude(const HcalCastorDetId& id) {
  std::vector<HcalCastorDetId>::iterator 
    i=std::lower_bound(exclusionList_.begin(),exclusionList_.end(),id);
  if (i==exclusionList_.end() || *i!=id) {
    exclusionList_.insert(i,id);
  }
}

void CastorTopology::exclude(int zside) {
 switch(zside){
  case( 1): excludeZP_ = true; break;
  case(-1): excludeZN_ = true; break;
  default: break;
  }
}

void CastorTopology::exclude(int zside, HcalCastorDetId::Section section) {
  switch(zside){
  case( 1): excludeZP_ = true; break;
  case(-1): excludeZN_ = true; break;
  default: break;
  }
  switch (section) {
  case(HcalCastorDetId::EM)  : excludeEM_ = true; break; 
  case(HcalCastorDetId::HAD) : excludeHAD_ = true; break; 
  default: break;
  }
}

int CastorTopology::exclude(int zside, HcalCastorDetId::Section section1, int isec1, int imod1, 
HcalCastorDetId::Section section2, int isec2, int imod2) {
  bool exed = false;
  switch(zside){
  case( 1): exed = excludeZP_; break;
  case(-1): exed = excludeZN_; break;
  default: exed = false;
  }
  if (exed) return 0;


/* NOTE not so sure about the exclusion */
  if (section1 == HcalCastorDetId::EM && section2 == HcalCastorDetId::EM) {
        exed = excludeEM_; }
  else if (section1 == HcalCastorDetId::HAD && section2 == HcalCastorDetId::HAD) {
        exed = excludeHAD_; }
  else { exed = false; };

  if (exed) return 0;

  bool isPositive = false;
  if(zside == 1)isPositive = true;

  int n = 0;
  for (int isec = isec1; isec < isec2; isec++){
     for (int imod = imod1; imod < imod2; imod++) {
    HcalCastorDetId id(section1, isPositive, isec, imod);  
    if(validRaw(id))exclude(id);
    n++;
   }
  }
  return n;
}

bool CastorTopology::validRaw(const HcalCastorDetId& id) const
{
   return HcalCastorDetId::validDetId( id.section(),
                                       id.zside()>0,
                                       id.sector(),
                                       id.module()  )  ;
}

std::vector<DetId> CastorTopology::incSector(const DetId& id) const{
  std::vector<DetId> vNeighborsDetId;
  HcalCastorDetId castorId = HcalCastorDetId(id);
  HcalCastorDetId castorDetId;
  if(validRaw(castorId)) {
    bool isPositive = false;
    if(castorId.zside()==1)isPositive = true;
    if(castorId.sector()==1) {
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector()+1, 
castorId.module());
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
    if(castorId.sector()== 16){
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector()-1, 
castorId.module());
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
    castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector()-1, 
castorId.module());
    vNeighborsDetId.push_back(castorDetId.rawId());
    castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector()+1, 
castorId.module());
    vNeighborsDetId.push_back(castorDetId.rawId());
  }
  return vNeighborsDetId;
}

std::vector<DetId> CastorTopology::incModule(const DetId& id) const{
  std::vector<DetId> vNeighborsDetId;
  HcalCastorDetId castorId = HcalCastorDetId(id);
  HcalCastorDetId castorDetId;
  if(validRaw(castorId) && castorId.section()== HcalCastorDetId::EM){
    bool isPositive = false;
    if(castorId.zside()==1)isPositive = true;
    if(castorId.module()==1){
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()+1);
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
    if(castorId.module()== MODULE_EM_MAX){
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()-1);
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
    castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()-1);
    vNeighborsDetId.push_back(castorDetId.rawId());
    castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()+1);
    vNeighborsDetId.push_back(castorDetId.rawId());
  }
  if(validRaw(castorId) && castorId.section()== HcalCastorDetId::HAD){
    bool isPositive = false;
    if(castorId.zside()==1)isPositive = true;
    if(castorId.module()==1){
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()+1);
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
    if(castorId.module()== MODULE_HAD_MAX){
      castorDetId = HcalCastorDetId(castorId.section(), isPositive, castorId.sector(), castorId.module()-1);
      vNeighborsDetId.push_back(castorDetId.rawId());
      return vNeighborsDetId;
    }
  }
  return vNeighborsDetId;
}

  
std::vector<DetId> CastorTopology::east(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::east() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

std::vector<DetId> CastorTopology::west(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::west() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

std::vector<DetId> CastorTopology::north(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::north() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> CastorTopology::south(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::south() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> CastorTopology::up(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::up() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}
std::vector<DetId> CastorTopology::down(const DetId& /*id*/) const
{
  std::cout << "CastorTopology::down() not yet implemented" << std::endl;
  std::vector<DetId> vNeighborsDetId;
  return  vNeighborsDetId;
}

int CastorTopology::ncells(HcalCastorDetId::Section section) const{
  int ncells = 0;
  switch (section) {
  case(HcalCastorDetId::EM)  : ncells = MODULE_EM_MAX*16; break;
  case(HcalCastorDetId::HAD) : ncells = MODULE_HAD_MAX*16; break; 
  case(HcalCastorDetId::Unknown) : ncells =0; break;
  }
  return ncells;
}

int CastorTopology::firstCell(HcalCastorDetId::Section section)const {
  int firstCell = 0;
  switch (section) {
  case(HcalCastorDetId::EM) : firstCell = firstEMModule_ ; break;
  case(HcalCastorDetId::HAD) : firstCell = firstHADModule_; break; 
  case(HcalCastorDetId::Unknown) : firstCell  = 0; break;
  }
  return firstCell;
}

int CastorTopology::lastCell(HcalCastorDetId::Section section) const {
  int lastCell = 0;
  switch (section) {
  case(HcalCastorDetId::EM) : lastCell = lastEMModule_; break;
  case(HcalCastorDetId::HAD) : lastCell = lastHADModule_; break; 
  case(HcalCastorDetId::Unknown) : lastCell  = 0; break;
  }
  return lastCell;
}