#include <HcalTrigTowerGeometry.h>

Public Member Functions
std::vector< HcalDetId >	detIds (const HcalTrigTowerDetId &) const

int	firstHFRingInTower (int ietaTower) const
	since the towers are irregular in eta in HF More...

int	firstHFTower () const

	HcalTrigTowerGeometry ()

int	hfTowerEtaSize (int ieta) const

int	nPhiBins (int ieta) const
	an interface for CaloSubdetectorGeometry More...

int	nTowers () const

void	setupHF (bool useShortFibers, bool useQuadRings)

void	towerEtaBounds (int ieta, 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...

Private Attributes
HcalTopology	theTopology

bool	useHFQuadPhiRings_

bool	useShortFibers_

Detailed Description

Definition at line 10 of file HcalTrigTowerGeometry.h.

Constructor & Destructor Documentation

HcalTrigTowerGeometry::HcalTrigTowerGeometry ( )

Definition at line 9 of file HcalTrigTowerGeometry.cc.

References useHFQuadPhiRings_, and useShortFibers_.

                                              {
   useShortFibers_=true;
   useHFQuadPhiRings_=true;
 }

Member Function Documentation

std::vector< HcalDetId > HcalTrigTowerGeometry::detIds ( const HcalTrigTowerDetId & hcalTrigTowerDetId ) const

Definition at line 67 of file HcalTrigTowerGeometry.cc.

References 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(), python.entryComment::results, and theTopology.

                                                                                  {
   // 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()){  
     
     int HfTowerPhiSize     = 72 / nPhiBins(tower_ieta);
     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
     if (tower_ieta < 0) cell_ieta *= -1;           
 
     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));
     
       }    
     }
   }
 
   return results;
 }

int HcalTrigTowerGeometry::firstHFRingInTower ( int ietaTower ) const

since the towers are irregular in eta in HF

Definition at line 169 of file HcalTrigTowerGeometry.cc.

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

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

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

int HcalTrigTowerGeometry::firstHFTower ( ) const

inline

Definition at line 29 of file HcalTrigTowerGeometry.h.

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

29 {return 29;}

int HcalTrigTowerGeometry::hfTowerEtaSize ( int ieta ) const

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

Definition at line 161 of file HcalTrigTowerGeometry.cc.

References abs, firstHFTower(), and nTowers().

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

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

int HcalTrigTowerGeometry::nPhiBins ( int ieta ) const

inline

an interface for CaloSubdetectorGeometry

the number of phi bins in this eta ring

Definition at line 25 of file HcalTrigTowerGeometry.h.

References abs, and firstHFTower().

Referenced by detIds().

                                {
     return (abs(ieta) < firstHFTower()) ? 72 : 18;
   }

int HcalTrigTowerGeometry::nTowers ( ) const

inline

Definition at line 30 of file HcalTrigTowerGeometry.h.

Referenced by hfTowerEtaSize(), and CaloTPGTranscoderULUT::printDecompression().

30 {return 32;}

void HcalTrigTowerGeometry::setupHF	(	bool	useShortFibers,
		bool	useQuadRings
	)

Definition at line 14 of file HcalTrigTowerGeometry.cc.

References useHFQuadPhiRings_, and useShortFibers_.

                                                                           {
   useShortFibers_=useShortFibers;
   useHFQuadPhiRings_=useQuadRings;
 }

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

where this tower begins and ends in eta

Definition at line 183 of file HcalTrigTowerGeometry.cc.

References abs, HcalTopology::firstHFRing(), firstHFRingInTower(), firstHFTower(), hfTowerEtaSize(), HcalTopology::lastHERing(), theHBHEEtaBounds, theHFEtaBounds, theTopology, and tmp.

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

                                                                                        {
   int ietaAbs = abs(ieta);
   if(ietaAbs < firstHFTower()) {
     eta1 = theHBHEEtaBounds[ietaAbs-1];
     eta2 = theHBHEEtaBounds[ietaAbs];
     // the last tower is split, so get tower 29, too
     if(ietaAbs == theTopology.lastHERing()-1) {
       eta2 = theHBHEEtaBounds[ietaAbs+1];
     } 
   } else {
     // count from 0
     int hfIndex = firstHFRingInTower(ietaAbs) - theTopology.firstHFRing();
     eta1 = theHFEtaBounds[hfIndex];
     eta2 = theHFEtaBounds[hfIndex + hfTowerEtaSize(ieta)];
   }
 
   // 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 20 of file HcalTrigTowerGeometry.cc.

References HcalDetId::depth(), HcalTopology::firstHEDoublePhiRing(), HcalTopology::firstHFQuadPhiRing(), firstHFRingInTower(), firstHFTower(), HcalForward, HcalDetId::ieta(), HcalDetId::ietaAbs(), HcalDetId::iphi(), HcalTopology::lastHERing(), python.entryComment::results, HcalDetId::subdet(), theTopology, useHFQuadPhiRings_, useShortFibers_, and HcalDetId::zside().

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

                                                               {
 
   std::vector<HcalTrigTowerDetId> results;
 
   if(cellId.subdet() == HcalForward) {
     // short fibers don't count
     if(cellId.depth() == 1 || useShortFibers_) {
       // first do eta
       int hfRing = cellId.ietaAbs();
       int ieta = firstHFTower(); 
       // 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
       if (useHFQuadPhiRings_ || cellId.ietaAbs() < theTopology.firstHFQuadPhiRing())
         results.push_back( HcalTrigTowerDetId(ieta, iphi) );
     }
       
   } 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;
 }