HcalTrigTowerGeometry Class Reference

#include <HcalTrigTowerGeometry.h>

Public Member Functions
std::vector< HcalDetId >	detIds (const HcalTrigTowerDetId &) const
int	firstHFTower (int version) const
	HcalTrigTowerGeometry (const HcalTopology *topology)
int	nTowers (int version) const
	number of towers (version dependent) More...
void	setupHFTowers (bool enableRCT, bool enable1x1)
const HcalTopology &	topology () const
void	towerEtaBounds (int ieta, int version, double &eta1, double &eta2) const
	where this tower begins and ends in eta More...
std::vector< HcalTrigTowerDetId >	towerIds (const HcalDetId &cellId) const
	the mapping to and from DetIds More...
bool	use1x1 () const
bool	useRCT () const

Private Member Functions
int	firstHFRingInTower (int ietaTower) const
	since the towers are irregular in eta in HF More...
int	hfTowerEtaSize (int ieta) const
int	nPhiBins (int ieta, int version) const
	the number of phi bins in this eta ring More...

Private Attributes
const HcalTopology *	theTopology
bool	use1x1_
bool	useRCT_

Detailed Description

Definition at line 10 of file HcalTrigTowerGeometry.h.

Constructor & Destructor Documentation

HcalTrigTowerGeometry::HcalTrigTowerGeometry

(

const HcalTopology *

topology

)

Definition at line 8 of file HcalTrigTowerGeometry.cc.

References use1x1_, and useRCT_.

    : theTopology( topology ) {
  useRCT_=true;
  use1x1_=true;
}

Member Function Documentation

std::vector< HcalDetId > HcalTrigTowerGeometry::detIds

(

const HcalTrigTowerDetId &

hcalTrigTowerDetId

)

const

Definition at line 73 of file HcalTrigTowerGeometry.cc.

References funct::abs(), HcalTopology::depthBinInformation(), HcalTopology::firstHEDoublePhiRing(), HcalTopology::firstHERing(), HcalTopology::firstHFRing(), firstHFRingInTower(), HcalBarrel, HcalEndcap, HcalForward, HcalOuter, hfTowerEtaSize(), HcalTrigTowerDetId::ieta(), HcalTrigTowerDetId::iphi(), HcalTopology::lastHBRing(), HcalTopology::lastHERing(), HcalTopology::lastHORing(), nPhiBins(), bookConverter::results, theTopology, HcalTrigTowerDetId::version(), and ecaldqm::zside().

                                                                                 {
  // Written, tested by E. Berry (Princeton)
  std::vector<HcalDetId> results;

  int tower_ieta = hcalTrigTowerDetId.ieta();
  int tower_iphi = hcalTrigTowerDetId.iphi();

  int cell_ieta = tower_ieta;
  int cell_iphi = tower_iphi;

  int min_depth, n_depths;

  // HB
  
  if (abs(cell_ieta) <= theTopology->lastHBRing()){
    theTopology->depthBinInformation(HcalBarrel, abs(tower_ieta), n_depths, min_depth);
    for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++)
      results.push_back(HcalDetId(HcalBarrel,cell_ieta,cell_iphi,cell_depth));
  }

  // HO
  
  if (abs(cell_ieta) <= theTopology->lastHORing()){ 
    theTopology->depthBinInformation(HcalOuter , abs(tower_ieta), n_depths, min_depth);  
    for (int ho_depth = min_depth; ho_depth <= min_depth + n_depths - 1; ho_depth++)
      results.push_back(HcalDetId(HcalOuter, cell_ieta,cell_iphi,ho_depth));
  }

  // HE 

  if (abs(cell_ieta) >= theTopology->firstHERing() && 
      abs(cell_ieta) <  theTopology->lastHERing()){   

    theTopology->depthBinInformation(HcalEndcap, abs(tower_ieta), n_depths, min_depth);
    
    // Special for double-phi cells
    if (abs(cell_ieta) >= theTopology->firstHEDoublePhiRing())
      if (tower_iphi%2 == 0) cell_iphi = tower_iphi - 1;
    
    for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++)
      results.push_back(HcalDetId(HcalEndcap, cell_ieta, cell_iphi, cell_depth));
    
    // Special for split-eta cells
    if (abs(tower_ieta) == 28){
      theTopology->depthBinInformation(HcalEndcap, abs(tower_ieta)+1, n_depths, min_depth);
      for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++){
    if (tower_ieta < 0) results.push_back(HcalDetId(HcalEndcap, tower_ieta - 1, cell_iphi, cell_depth));
    if (tower_ieta > 0) results.push_back(HcalDetId(HcalEndcap, tower_ieta + 1, cell_iphi, cell_depth));
      }
    }
    
  }
    
  // HF 

  if (abs(cell_ieta) >= theTopology->firstHFRing()){  

    if (hcalTrigTowerDetId.version()==0) {
    
      int HfTowerPhiSize =  72 / nPhiBins(tower_ieta,0);

      int HfTowerEtaSize     = hfTowerEtaSize(tower_ieta);
      int FirstHFRingInTower = firstHFRingInTower(abs(tower_ieta));

      for (int iHFTowerPhiSegment = 0; iHFTowerPhiSegment < HfTowerPhiSize; iHFTowerPhiSegment++){      
            
    cell_iphi =  (tower_iphi / HfTowerPhiSize) * HfTowerPhiSize; // Find the minimum phi segment
    cell_iphi -= 2; // The first trigger tower starts at HCAL iphi = 71, not HCAL iphi = 1
    cell_iphi += iHFTowerPhiSegment;       // Get all of the HCAL iphi values in this trigger tower
    cell_iphi += 72;                       // Don't want to take the mod of a negative number
    cell_iphi =  cell_iphi % 72;           // There are, at most, 72 cells.
    cell_iphi += 1;// There is no cell at iphi = 0
      
    if (cell_iphi%2 == 0) continue;        // These cells don't exist.

    for (int iHFTowerEtaSegment = 0; iHFTowerEtaSegment < HfTowerEtaSize; iHFTowerEtaSegment++){
        
      cell_ieta = FirstHFRingInTower + iHFTowerEtaSegment;

      if (cell_ieta >= 40 && cell_iphi%4 == 1) continue;  // These cells don't exist.

      theTopology->depthBinInformation(HcalForward, cell_ieta, n_depths, min_depth);  
      
      // Negative tower_ieta -> negative cell_ieta
      int zside = 1;
      if (tower_ieta < 0) zside = -1;

      cell_ieta *= zside;          

      for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++)
        results.push_back(HcalDetId(HcalForward, cell_ieta, cell_iphi, cell_depth));
    
      if ( zside * cell_ieta == 30 ) {
        theTopology->depthBinInformation(HcalForward, 29 * zside, n_depths, min_depth);  
        for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++) 
          results.push_back(HcalDetId(HcalForward, 29 * zside , cell_iphi, cell_depth));
      }
    }
      }  
    } else if (hcalTrigTowerDetId.version()==1) {
      theTopology->depthBinInformation(HcalForward, tower_ieta, n_depths, min_depth);  
      for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++)
    results.push_back(HcalDetId(HcalForward, tower_ieta, tower_iphi, cell_depth));      
      if (abs(tower_ieta)==30) {
    int i29 = 29;
      if (tower_ieta < 0) i29 = -29;
      theTopology->depthBinInformation(HcalForward, i29, n_depths, min_depth);  
      for (int cell_depth = min_depth; cell_depth <= min_depth + n_depths - 1; cell_depth++)
        results.push_back(HcalDetId(HcalForward, i29, tower_iphi, cell_depth));      
      }
    }
  }
  
  return results;
}

int HcalTrigTowerGeometry::firstHFRingInTower ( int  ietaTower ) const

private

since the towers are irregular in eta in HF

Definition at line 200 of file HcalTrigTowerGeometry.cc.

References funct::abs(), HcalTopology::firstHFRing(), firstHFTower(), hfTowerEtaSize(), query::result, and theTopology.

Referenced by detIds(), and towerIds().

                                                                 {
  // count up to the correct HF ring
  int inputTower = abs(ietaTower);
  int result = theTopology->firstHFRing();
  for(int iTower = firstHFTower(0); iTower != inputTower; ++iTower) {
    result += hfTowerEtaSize(iTower);
  }
  
  // negative in, negative out.
  if(ietaTower < 0) result *= -1;
  return result;
}

int HcalTrigTowerGeometry::firstHFTower ( int  version ) const

inline

Definition at line 24 of file HcalTrigTowerGeometry.h.

Referenced by firstHFRingInTower(), hfTowerEtaSize(), CaloTPGTranscoderULUT::loadHCALCompress(), L1CaloHcalScaleConfigOnlineProd::newObject(), nPhiBins(), HcalTriggerPrimitiveAlgo::run(), towerEtaBounds(), and towerIds().

{return (version==0)?(29):(30);} 

int HcalTrigTowerGeometry::hfTowerEtaSize ( int  ieta ) const

private

the number of HF eta rings in this trigger tower ieta starts at firstHFTower()

Definition at line 190 of file HcalTrigTowerGeometry.cc.

References funct::abs(), assert(), firstHFTower(), and nTowers().

Referenced by detIds(), and firstHFRingInTower().

                                                        {
  
  int ietaAbs = abs(ieta); 
  assert(ietaAbs >= firstHFTower(0) && ietaAbs <= nTowers(0));
  // the first three come from rings 29-31, 32-34, 35-37. The last has 4 rings: 38-41
  return (ietaAbs == nTowers(0)) ? 4 : 3;
  
}

int HcalTrigTowerGeometry::nPhiBins ( int  ieta, int  version  ) const

inlineprivate

the number of phi bins in this eta ring

Definition at line 42 of file HcalTrigTowerGeometry.h.

References funct::abs(), and firstHFTower().

Referenced by detIds().

                                            {
    int nPhiBinsHF = ( 18 );   
    return (abs(ieta) < firstHFTower(version)) ? 72 : nPhiBinsHF;
  }

int HcalTrigTowerGeometry::nTowers ( int  version ) const

inline

number of towers (version dependent)

Definition at line 30 of file HcalTrigTowerGeometry.h.

Referenced by hfTowerEtaSize().

{return (version==0)?(32):(41);}

void HcalTrigTowerGeometry::setupHFTowers ( bool  enableRCT, bool  enable1x1  )

inline

Definition at line 19 of file HcalTrigTowerGeometry.h.

References use1x1_, and useRCT_.

                                                     {
    useRCT_=enableRCT;
    use1x1_=enable1x1;
  }

const HcalTopology& HcalTrigTowerGeometry::topology ( ) const

inline

Definition at line 33 of file HcalTrigTowerGeometry.h.

References theTopology.

{ return *theTopology; }

void HcalTrigTowerGeometry::towerEtaBounds	(	int	ieta,
		int	version,
		double &	eta1,
		double &	eta2
	)		const

where this tower begins and ends in eta

Definition at line 214 of file HcalTrigTowerGeometry.cc.

References funct::abs(), HcalTopology::etaRange(), EnergyCorrector::etas, firstHFTower(), HcalBarrel, HcalForward, theTopology, and tmp.

Referenced by CaloTPGTranscoderULUT::loadHCALCompress(), and L1CaloHcalScaleConfigOnlineProd::newObject().

                                                                                                    {
  int ietaAbs = abs(ieta);
  std::pair<double,double> etas = 
    (ietaAbs < firstHFTower(version)) ? theTopology->etaRange(HcalBarrel,ietaAbs) : 
    theTopology->etaRange(HcalForward,ietaAbs);
  eta1 = etas.first;
  eta2 = etas.second;
  
  // get the signs and order right
  if(ieta < 0) {
    double tmp = eta1;
    eta1 = -eta2;
    eta2 = -tmp;
  }
}

std::vector< HcalTrigTowerDetId > HcalTrigTowerGeometry::towerIds

(

const HcalDetId &

cellId

)

const

the mapping to and from DetIds

Definition at line 15 of file HcalTrigTowerGeometry.cc.

References HcalTopology::firstHEDoublePhiRing(), firstHFRingInTower(), firstHFTower(), HcalForward, HcalDetId::ieta(), HcalDetId::ietaAbs(), HcalDetId::iphi(), HcalTopology::lastHERing(), bookConverter::results, HcalDetId::subdet(), theTopology, use1x1_, useRCT_, and HcalDetId::zside().

Referenced by HcalTriggerPrimitiveAlgo::addSignal(), and HcalTriggerPrimitiveAlgo::runFEFormatError().

                                                              {

  std::vector<HcalTrigTowerDetId> results;

  if(cellId.subdet() == HcalForward) {

    if (useRCT_) { 
      // first do eta
      int hfRing = cellId.ietaAbs();
      int ieta = firstHFTower(0); 
      // find the tower that contains this ring
      while(hfRing >= firstHFRingInTower(ieta+1)) {
    ++ieta;
      }
      
      ieta *= cellId.zside();
      
      // now for phi
      // HF towers are quad, 18 in phi.
      // go two cells per trigger tower.
      
      int iphi = (((cellId.iphi()+1)/4) * 4 + 1)%72; // 71+1 --> 1, 3+5 --> 5
      results.push_back( HcalTrigTowerDetId(ieta, iphi) );
    } 
    if (use1x1_) {
      int hfRing = cellId.ietaAbs();
      if (hfRing==29) hfRing=30; // sum 29 into 30.

      int ieta = hfRing*cellId.zside();      
      int iphi = cellId.iphi();

      HcalTrigTowerDetId id(ieta,iphi);
      id.setVersion(1); // version 1 for 1x1 HF granularity
      results.push_back(id);
    }
      
  } else {
    // the first twenty rings are one-to-one
    if(cellId.ietaAbs() < theTopology->firstHEDoublePhiRing()) {    
      results.push_back( HcalTrigTowerDetId(cellId.ieta(), cellId.iphi()) );
    } else {
      // the remaining rings are two-to-one in phi
      int iphi1 = cellId.iphi();
      int ieta = cellId.ieta();
      // the last eta ring in HE is split.  Recombine.
      if(ieta == theTopology->lastHERing()) --ieta;
      if(ieta == -theTopology->lastHERing()) ++ieta;

      results.push_back( HcalTrigTowerDetId(ieta, iphi1) );
      results.push_back( HcalTrigTowerDetId(ieta, iphi1+1) );
    }
  }

  return results;
}

bool HcalTrigTowerGeometry::use1x1 ( ) const

inline

Definition at line 37 of file HcalTrigTowerGeometry.h.

References use1x1_.

{ return use1x1_; }

bool HcalTrigTowerGeometry::useRCT ( ) const

inline

Definition at line 36 of file HcalTrigTowerGeometry.h.

References useRCT_.

{ return useRCT_; }

Member Data Documentation

const HcalTopology* HcalTrigTowerGeometry::theTopology

private

Definition at line 55 of file HcalTrigTowerGeometry.h.

Referenced by detIds(), firstHFRingInTower(), topology(), towerEtaBounds(), and towerIds().

bool HcalTrigTowerGeometry::use1x1_

private

Definition at line 57 of file HcalTrigTowerGeometry.h.

Referenced by HcalTrigTowerGeometry(), setupHFTowers(), towerIds(), and use1x1().

bool HcalTrigTowerGeometry::useRCT_

private

Definition at line 56 of file HcalTrigTowerGeometry.h.

Referenced by HcalTrigTowerGeometry(), setupHFTowers(), towerIds(), and useRCT().