[u/mrichter/AliRoot.git] / EMCAL / AliEMCALGeometry.cxx

/**************************************************************************
 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
 *                                                                        *
 * Author: The ALICE Off-line Project.                                    *
 * Contributors are mentioned in the code where appropriate.              *
 *                                                                        *
 * Permission to use, copy, modify and distribute this software and its   *
 * documentation strictly for non-commercial purposes is hereby granted   *
 * without fee, provided that the above copyright notice appears in all   *
 * copies and that both the copyright notice and this permission notice   *
 * appear in the supporting documentation. The authors make no claims     *
 * about the suitability of this software for any purpose. It is          *
 * provided "as is" without express or implied warranty.                  *
 **************************************************************************/

/* $Id$*/

//_________________________________________________________________________
// Geometry class  for EMCAL : singleton  
// EMCAL consists of layers of scintillator and lead
// Places the the Barrel Geometry of The EMCAL at Midrapidity
// between 80 and 180(or 190) degrees of Phi and
// -0.7 to 0.7 in eta 
// Number of Modules and Layers may be controlled by 
// the name of the instance defined               
//     EMCAL geometry tree:
//     EMCAL -> superModule -> module -> tower(cell)
//     Indexes
//     absId -> nSupMod     -> nModule -> (nIphi,nIeta)
//
//*-- Author: Sahal Yacoob (LBL / UCT)
//     and  : Yves Schutz (SUBATECH)
//     and  : Jennifer Klay (LBL)
//     SHASHLYK : Aleksei Pavlinov (WSU) 
//

#include <assert.h>

// --- AliRoot header files ---
#include <Riostream.h>
#include <TBrowser.h>
#include <TClonesArray.h>
#include <TGeoManager.h>
#include <TGeoMatrix.h>
#include <TGeoNode.h>
#include <TList.h>
#include <TMatrixD.h>
#include <TObjArray.h>
#include <TObjString.h>
#include <TVector3.h>

// -- ALICE Headers.
#include "AliLog.h"

// --- EMCAL headers
#include "AliEMCALGeometry.h"
#include "AliEMCALShishKebabTrd1Module.h"
#include "AliEMCALRecPoint.h"
#include "AliEMCALDigit.h"
#include "AliEMCALHistoUtilities.h"

ClassImp(AliEMCALGeometry)

// these initialisations are needed for a singleton
AliEMCALGeometry  *AliEMCALGeometry::fgGeom      = 0;
Bool_t             AliEMCALGeometry::fgInit      = kFALSE;
Char_t*            AliEMCALGeometry::fgDefaultGeometryName = "SHISH_77_TRD1_2X2_FINAL_110DEG";
//
// Usage: 
//        You can create the AliEMCALGeometry object independently from anything.
//        You have to use just the correct name of geometry. If name is empty string the
//        default name of geometry will be used.
//         
//  AliEMCALGeometry* g = AliEMCALGeometry::GetInstance(name,title); // first time
//  ..
//  g = AliEMCALGeometry::GetInstance();                             // after first time
//
//  MC:   If you work with MC data you have to get geometry the next way: 
//  ==                                      =============================
//  AliRunLoader    *rl   = AliRunLoader::GetRunLoader();
// AliEMCALGeometry *geom = dynamic_cast<AliEMCAL*>(rl->GetAliRun()->GetDetector("EMCAL"))->GetGeometry();


AliEMCALGeometry::AliEMCALGeometry() 
  : AliGeometry(),
    fGeoName(0),fArrayOpts(0),fAlFrontThick(0.),fECPbRadThickness(0.),fECScintThick(0.),
    fNECLayers(0),fArm1PhiMin(0.),fArm1PhiMax(0.),fArm1EtaMin(0.),fArm1EtaMax(0.),fIPDistance(0.),
    fShellThickness(0.),fZLength(0.),fGap2Active(0.),fNZ(0),fNPhi(0),fSampling(0.),fNumberOfSuperModules(0),
    fSteelFrontThick(0.),fFrontSteelStrip(0.),fLateralSteelStrip(0.),fPassiveScintThick(0.),fPhiModuleSize(0.),
    fEtaModuleSize(0.),fPhiTileSize(0.),fEtaTileSize(0.),fLongModuleSize(0.),fNPhiSuperModule(0),fNPHIdiv(0),fNETAdiv(0),
    fNCells(0),fNCellsInSupMod(0),fNCellsInModule(0),fNTRUEta(0),fNTRUPhi(0),
    fNCellsInTRUEta(0), fNCellsInTRUPhi(0), fTrd1Angle(0.),f2Trd1Dx2(0.),
    fPhiGapForSM(0.),fKey110DEG(0),fPhiBoundariesOfSM(0), fPhiCentersOfSM(0),fEtaMaxOfTRD1(0),
    fTrd2AngleY(0.),f2Trd2Dy2(0.),fEmptySpace(0.),fTubsR(0.),fTubsTurnAngle(0.),fCentersOfCellsEtaDir(0),
    fCentersOfCellsXDir(0),fCentersOfCellsPhiDir(0),fEtaCentersOfCells(0),fPhiCentersOfCells(0),
    fShishKebabTrd1Modules(0), fNAdditionalOpts(0),
    fILOSS(-1), fIHADR(-1) 
{ 
  // default ctor only for internal usage (singleton)
  // must be kept public for root persistency purposes, but should never be called by the outside world    
  //  CreateListOfTrd1Modules();
  AliDebug(2, "AliEMCALGeometry : default ctor ");
}
//______________________________________________________________________
AliEMCALGeometry::AliEMCALGeometry(const Text_t* name, const Text_t* title) 
  : AliGeometry(name, title),
    fGeoName(0),fArrayOpts(0),fAlFrontThick(0.),fECPbRadThickness(0.),fECScintThick(0.),
    fNECLayers(0),fArm1PhiMin(0.),fArm1PhiMax(0.),fArm1EtaMin(0.),fArm1EtaMax(0.),fIPDistance(0.),
    fShellThickness(0.),fZLength(0.),fGap2Active(0.),fNZ(0),fNPhi(0),fSampling(0.),fNumberOfSuperModules(0),
    fSteelFrontThick(0.),fFrontSteelStrip(0.),fLateralSteelStrip(0.),fPassiveScintThick(0.),fPhiModuleSize(0.),
    fEtaModuleSize(0.),fPhiTileSize(0.),fEtaTileSize(0.),fLongModuleSize(0.),fNPhiSuperModule(0),fNPHIdiv(0),fNETAdiv(0),
    fNCells(0),fNCellsInSupMod(0),fNCellsInModule(0),fNTRUEta(0),fNTRUPhi(0),
    fNCellsInTRUEta(0), fNCellsInTRUPhi(0), fTrd1Angle(0.),f2Trd1Dx2(0.),
    fPhiGapForSM(0.),fKey110DEG(0),fPhiBoundariesOfSM(0), fPhiCentersOfSM(0), fEtaMaxOfTRD1(0),
    fTrd2AngleY(0.),f2Trd2Dy2(0.),fEmptySpace(0.),fTubsR(0.),fTubsTurnAngle(0.),fCentersOfCellsEtaDir(0),
    fCentersOfCellsXDir(0),fCentersOfCellsPhiDir(0),fEtaCentersOfCells(0),fPhiCentersOfCells(0),
    fShishKebabTrd1Modules(0),fNAdditionalOpts(0),
    fILOSS(-1), fIHADR(-1) 
{
  // ctor only for internal usage (singleton)
  AliDebug(2, Form("AliEMCALGeometry(%s,%s) ", name,title));

  Init();

  CreateListOfTrd1Modules();

  if (AliDebugLevel()>=2) {
    PrintGeometry();
  }

}
//______________________________________________________________________
AliEMCALGeometry::AliEMCALGeometry(const AliEMCALGeometry& geom)
  : AliGeometry(geom),
    fGeoName(geom.fGeoName),
    fArrayOpts(geom.fArrayOpts),
    fAlFrontThick(geom.fAlFrontThick),
    fECPbRadThickness(geom.fECPbRadThickness),
    fECScintThick(geom.fECScintThick),
    fNECLayers(geom.fNECLayers),
    fArm1PhiMin(geom.fArm1PhiMin),
    fArm1PhiMax(geom.fArm1PhiMax),
    fArm1EtaMin(geom.fArm1EtaMin),
    fArm1EtaMax(geom.fArm1EtaMax),
    fIPDistance(geom.fIPDistance),
    fShellThickness(geom.fShellThickness),
    fZLength(geom.fZLength),
    fGap2Active(geom.fGap2Active),
    fNZ(geom.fNZ),
    fNPhi(geom.fNPhi),
    fSampling(geom.fSampling),
    fNumberOfSuperModules(geom.fNumberOfSuperModules),
    fSteelFrontThick(geom.fSteelFrontThick),
    fFrontSteelStrip(geom.fFrontSteelStrip),
    fLateralSteelStrip(geom.fLateralSteelStrip),
    fPassiveScintThick(geom.fPassiveScintThick),
    fPhiModuleSize(geom.fPhiModuleSize),
    fEtaModuleSize(geom.fEtaModuleSize),
    fPhiTileSize(geom.fPhiTileSize),
    fEtaTileSize(geom.fEtaTileSize),
    fLongModuleSize(geom.fLongModuleSize),
    fNPhiSuperModule(geom.fNPhiSuperModule),
    fNPHIdiv(geom.fNPHIdiv),
    fNETAdiv(geom.fNETAdiv),
    fNCells(geom.fNCells),
    fNCellsInSupMod(geom.fNCellsInSupMod),
    fNCellsInModule(geom.fNCellsInModule),
    fNTRUEta(geom.fNTRUEta),
    fNTRUPhi(geom.fNTRUPhi),
    fNCellsInTRUEta(geom.fNCellsInTRUEta),
    fNCellsInTRUPhi(geom.fNCellsInTRUPhi),
    fTrd1Angle(geom.fTrd1Angle),
    f2Trd1Dx2(geom.f2Trd1Dx2),
    fPhiGapForSM(geom.fPhiGapForSM),
    fKey110DEG(geom.fKey110DEG),
    fPhiBoundariesOfSM(geom.fPhiBoundariesOfSM),
    fPhiCentersOfSM(geom.fPhiCentersOfSM),
    fEtaMaxOfTRD1(geom.fEtaMaxOfTRD1),
    fTrd2AngleY(geom.fTrd2AngleY),
    f2Trd2Dy2(geom.f2Trd2Dy2),
    fEmptySpace(geom.fEmptySpace),
    fTubsR(geom.fTubsR),
    fTubsTurnAngle(geom.fTubsTurnAngle),
    fCentersOfCellsEtaDir(geom.fCentersOfCellsEtaDir),
    fCentersOfCellsXDir(geom.fCentersOfCellsXDir),
    fCentersOfCellsPhiDir(geom.fCentersOfCellsPhiDir),
    fEtaCentersOfCells(geom.fEtaCentersOfCells),
    fPhiCentersOfCells(geom.fPhiCentersOfCells),
    fShishKebabTrd1Modules(geom.fShishKebabTrd1Modules),
    fNAdditionalOpts(geom.fNAdditionalOpts),
    fILOSS(geom.fILOSS), fIHADR(geom.fIHADR) 
{
  //copy ctor
}

//______________________________________________________________________
AliEMCALGeometry::~AliEMCALGeometry(void){
    // dtor
}
//______________________________________________________________________
void AliEMCALGeometry::Init(void){
  // Initializes the EMCAL parameters
  // naming convention : GUV_WX_N_ gives the composition of a tower
  // WX inform about the composition of the EM calorimeter section: 
  //   thickness in mm of Pb radiator (W) and of scintillator (X), and number of scintillator layers (N)
  // New geometry: EMCAL_55_25
  // 24-aug-04 for shish-kebab
  // SHISH_25 or SHISH_62
  // 11-oct-05   - correction for pre final design
  // Feb 06,2006 - decrease the weight of EMCAL
  //
  // Oct 30,2006 - SHISH_TRD1_CURRENT_1X1, SHISH_TRD1_CURRENT_2X2 or SHISH_TRD1_CURRENT_3X3;
  //

  fAdditionalOpts[0] = "nl=";       // number of sampling layers (fNECLayers)
  fAdditionalOpts[1] = "pbTh=";     // cm, Thickness of the Pb   (fECPbRadThick)
  fAdditionalOpts[2] = "scTh=";     // cm, Thickness of the Sc    (fECScintThick)
  fAdditionalOpts[3] = "latSS=";    // cm, Thickness of lateral steel strip (fLateralSteelStrip)
  fAdditionalOpts[4] = "allILOSS="; // = 0,1,2,3,4 (4 - energy loss without fluctuation)
  fAdditionalOpts[5] = "allIHADR="; // = 0,1,2 (0 - no hadronic interaction)

  fNAdditionalOpts = sizeof(fAdditionalOpts) / sizeof(char*);

  fgInit = kFALSE; // Assume failed until proven otherwise.
  fGeoName   = GetName();
  fGeoName.ToUpper();
  fKey110DEG = 0;
  if(fGeoName.Contains("110DEG") || fGeoName.Contains("CURRENT")) fKey110DEG = 1; // for GetAbsCellId
  fShishKebabTrd1Modules = 0;
  fTrd2AngleY = f2Trd2Dy2 = fEmptySpace = fTubsR = fTubsTurnAngle = 0;

  fNZ             = 114;	// granularity along Z (eta) 
  fNPhi           = 168;	// granularity in phi (azimuth)
  fArm1PhiMin     = 80.0;	// degrees, Starting EMCAL Phi position
  fArm1PhiMax     = 190.0;	// degrees, Ending EMCAL Phi position
  fArm1EtaMin     = -0.7;	// pseudorapidity, Starting EMCAL Eta position
  fArm1EtaMax     = +0.7;	// pseudorapidity, Ending EMCAL Eta position
  fIPDistance     = 454.0;      // cm, Radial distance to inner surface of EMCAL
  fPhiGapForSM    = 0.;         // cm, only for final TRD1 geometry
  for(int i=0; i<12; i++) fMatrixOfSM[i] = 0;

  // geometry
  if(fGeoName.Contains("SHISH")){ // Only shahslyk now
    // 7-sep-05; integration issue
    fArm1PhiMin     = 80.0;	// 60  -> 80
    fArm1PhiMax     = 180.0;	// 180 -> 190

    fNumberOfSuperModules = 10; // 12 = 6 * 2 (6 in phi, 2 in Z);
    fSteelFrontThick = 2.54;    //  9-sep-04
    fIPDistance      = 460.0;
    fFrontSteelStrip = fPassiveScintThick = 0.0; // 13-may-05
    fLateralSteelStrip = 0.025; // before MAY 2005 
    fPhiModuleSize   = fEtaModuleSize   = 11.4;
    fPhiTileSize = fEtaTileSize      = 5.52; // (11.4-5.52*2)/2. = 0.18 cm (wall thickness)
    fNPhi            = 14;
    fNZ              = 30;
    fAlFrontThick    = fGap2Active = 0;
    fNPHIdiv = fNETAdiv = 2;

    fNECLayers       = 62;
    fECScintThick    = fECPbRadThickness = 0.2;
    fSampling        = 1.;  // 30-aug-04 - should be calculated
    if(fGeoName.Contains("TWIST")) { // all about EMCAL module
      fNZ             = 27;  // 16-sep-04
    } else if(fGeoName.Contains("TRD")) {
      fIPDistance      = 428.0;  //  11-may-05
      fSteelFrontThick = 0.0;    // 3.17 -> 0.0; 28-mar-05 : no stell plate
      fNPhi            = 12;
      fSampling       = 12.327;
      fPhiModuleSize = fEtaModuleSize = 12.26;
      fNZ            = 26;     // 11-oct-04
      fTrd1Angle     = 1.3;    // in degree
// 18-nov-04; 1./0.08112=12.327
// http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/linearityAndResolutionForTRD1.html
      if(fGeoName.Contains("TRD1")) {       // 30-jan-05
	// for final design
        fPhiGapForSM    = 2.;         // cm, only for final TRD1 geometry
        if(fGeoName.Contains("MAY05") || fGeoName.Contains("WSUC") || fGeoName.Contains("FINAL") || fGeoName.Contains("CURRENT")){
          fNumberOfSuperModules = 12; // 20-may-05
          if(fGeoName.Contains("WSUC")) fNumberOfSuperModules = 1; // 27-may-05
          fNECLayers     = 77;       // (13-may-05 from V.Petrov)
          fPhiModuleSize = 12.5;     // 20-may-05 - rectangular shape
          fEtaModuleSize = 11.9;
          fECScintThick  = fECPbRadThickness = 0.16;// (13-may-05 from V.Petrov)
          fFrontSteelStrip   = 0.025;// 0.025cm = 0.25mm  (13-may-05 from V.Petrov)
          fLateralSteelStrip = 0.01; // 0.01cm  = 0.1mm   (13-may-05 from V.Petrov) - was 0.025
          fPassiveScintThick = 0.8;  // 0.8cm   = 8mm     (13-may-05 from V.Petrov)
          fNZ                = 24;
          fTrd1Angle         = 1.5;  // 1.3 or 1.5

          if(fGeoName.Contains("FINAL") || fGeoName.Contains("CURRENT")) { // 9-sep-05
            fNumberOfSuperModules = 10;
            if(GetKey110DEG()) {
              fNumberOfSuperModules = 12;// last two modules have size 10 degree in phi (180<phi<190)
              fArm1PhiMax = 200.0;       // for XEN1 and turn angle of super modules
	    }
            if(fGeoName.Contains("FINAL")) {
              fPhiModuleSize = 12.26 - fPhiGapForSM / Float_t(fNPhi); // first assumption
	    } else if(fGeoName.Contains("CURRENT")) {
              fECScintThick      = 0.176; // 10% of weight reduction
              fECPbRadThickness  = 0.144; //
              fLateralSteelStrip = 0.015; // 0.015cm  = 0.15mm (Oct 30, from Fred)
              fPhiModuleSize     = 12.00;
              fPhiGapForSM       = (12.26 - fPhiModuleSize)*fNPhi; // have to check
	    }
            fEtaModuleSize = fPhiModuleSize;
            if(fGeoName.Contains("HUGE")) fNECLayers *= 3; // 28-oct-05 for analysing leakage    
          }
	}
      } else if(fGeoName.Contains("TRD2")) {       // 30-jan-05
        fSteelFrontThick = 0.0;         // 11-mar-05
        fIPDistance+= fSteelFrontThick; // 1-feb-05 - compensate absence of steel plate
        fTrd1Angle  = 1.64;             // 1.3->1.64
        fTrd2AngleY = fTrd1Angle;       //  symmetric case now
        fEmptySpace    = 0.2; // 2 mm
        fTubsR         = fIPDistance; // 31-jan-05 - as for Fred case

        fPhiModuleSize  = fTubsR*2.*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.);
        fPhiModuleSize -= fEmptySpace/2.; // 11-mar-05  
        fEtaModuleSize  = fPhiModuleSize; // 20-may-05 
        fTubsTurnAngle  = 3.;
      }
      fNPHIdiv = fNETAdiv  = 2;   // 13-oct-04 - division again
      if(fGeoName.Contains("3X3")) {   // 23-nov-04
        fNPHIdiv = fNETAdiv  = 3;
      } else if(fGeoName.Contains("4X4")) {
        fNPHIdiv = fNETAdiv  = 4;
      } else if(fGeoName.Contains("1X1")) {
        fNPHIdiv = fNETAdiv  = 1;
      }
    }
    if(fGeoName.Contains("25")){
      fNECLayers     = 25;
      fECScintThick  = fECPbRadThickness = 0.5;
    }
    if(fGeoName.Contains("WSUC")){ // 18-may-05 - about common structure
      fShellThickness = 30.; // should be change 
      fNPhi = fNZ = 4; 
    }

    CheckAdditionalOptions();
    DefineSamplingFraction();

    fPhiTileSize = fPhiModuleSize/double(fNPHIdiv) - fLateralSteelStrip; // 13-may-05 
    fEtaTileSize = fEtaModuleSize/double(fNETAdiv) - fLateralSteelStrip; // 13-may-05 

    // constant for transition absid <--> indexes
    fNCellsInModule  = fNPHIdiv*fNETAdiv;
    fNCellsInSupMod = fNCellsInModule*fNPhi*fNZ;
    fNCells         = fNCellsInSupMod*fNumberOfSuperModules;
    if(GetKey110DEG()) fNCells -= fNCellsInSupMod;

    fLongModuleSize = fNECLayers*(fECScintThick + fECPbRadThickness);
    if(fGeoName.Contains("MAY05")) fLongModuleSize += (fFrontSteelStrip + fPassiveScintThick);

    // 30-sep-04
    if(fGeoName.Contains("TRD")) {
      f2Trd1Dx2 = fEtaModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd1Angle*TMath::DegToRad()/2.);
      if(fGeoName.Contains("TRD2")) {  // 27-jan-05
        f2Trd2Dy2 = fPhiModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.);
      }
    }
  } else Fatal("Init", "%s is an undefined geometry!", fGeoName.Data()) ; 

  fNPhiSuperModule = fNumberOfSuperModules/2;
  if(fNPhiSuperModule<1) fNPhiSuperModule = 1;

  fShellThickness = fAlFrontThick + fGap2Active + fNECLayers*GetECScintThick()+(fNECLayers-1)*GetECPbRadThick();
  if(fGeoName.Contains("SHISH")) {
    fShellThickness = fSteelFrontThick + fLongModuleSize;
    if(fGeoName.Contains("TWIST")) { // 13-sep-04
      fShellThickness  = TMath::Sqrt(fLongModuleSize*fLongModuleSize + fPhiModuleSize*fEtaModuleSize);
      fShellThickness += fSteelFrontThick;
    } else if(fGeoName.Contains("TRD")) { // 1-oct-04
      fShellThickness  = TMath::Sqrt(fLongModuleSize*fLongModuleSize + f2Trd1Dx2*f2Trd1Dx2);
      fShellThickness += fSteelFrontThick;
      // Local coordinates
      fParSM[0] = GetShellThickness()/2.;        
      fParSM[1] = GetPhiModuleSize() * GetNPhi()/2.;
      fParSM[2] = 350./2.;
    }
  }

  fZLength        = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage
  fEnvelop[0]     = fIPDistance; // mother volume inner radius
  fEnvelop[1]     = fIPDistance + fShellThickness; // mother volume outer r.
  fEnvelop[2]     = 1.00001*fZLength; // add some padding for mother volume. 

  fNumberOfSuperModules = 12;

  // SM phi boundaries - (0,1),(2,3) .. (10,11) - has the same boundaries; Nov 7, 2006 
  fPhiBoundariesOfSM.Set(fNumberOfSuperModules);
  fPhiCentersOfSM.Set(fNumberOfSuperModules/2);
  fPhiBoundariesOfSM[0] = TMath::PiOver2() - TMath::ATan2(fParSM[1] , fIPDistance); // 1th and 2th modules)
  fPhiBoundariesOfSM[1] = TMath::PiOver2() + TMath::ATan2(fParSM[1] , fIPDistance);
  fPhiCentersOfSM[0]     = TMath::PiOver2();
  for(int i=1; i<=4; i++) { // from 2th ro 9th
    fPhiBoundariesOfSM[2*i]   = fPhiBoundariesOfSM[0] + 20.*TMath::DegToRad()*i;
    fPhiBoundariesOfSM[2*i+1] = fPhiBoundariesOfSM[1] + 20.*TMath::DegToRad()*i;
    fPhiCentersOfSM[i]         = fPhiCentersOfSM[0]     + 20.*TMath::DegToRad()*i;
  }
  fPhiBoundariesOfSM[11] = 190.*TMath::DegToRad();
  fPhiBoundariesOfSM[10] = fPhiBoundariesOfSM[11] - TMath::ATan2((fParSM[1]) , fIPDistance);
  fPhiCentersOfSM[5]      = (fPhiBoundariesOfSM[10]+fPhiBoundariesOfSM[11])/2.; 

  //TRU parameters. These parameters values are not the final ones.
  fNTRUEta = 3 ;
  fNTRUPhi = 1 ;
  fNCellsInTRUEta = 16 ;
  fNCellsInTRUPhi = 24 ;

      // Define TGeoMatrix of SM - Jan 19, 2007 (just fro TRD1)
  if(fGeoName.Contains("TRD1")) { // copy code from  AliEMCALv0::CreateSmod()
    int nphism  = GetNumberOfSuperModules()/2;
    double dphi = (GetArm1PhiMax() - GetArm1PhiMin())/nphism;
    double rpos = (GetEnvelop(0) + GetEnvelop(1))/2.;
    double phi, phiRad, xpos, ypos, zpos;
    for(int i=0; i<nphism; i++){
       phi    = GetArm1PhiMin() + dphi*(2*i+1)/2.; // phi= 90, 110, 130, 150, 170, 190
       phiRad = phi*TMath::Pi()/180.;
       xpos = rpos * TMath::Cos(phiRad);
       ypos = rpos * TMath::Sin(phiRad);
       zpos = fParSM[2];
       if(i==5) {
         xpos += (fParSM[1]/2. * TMath::Sin(phiRad)); 
         ypos -= (fParSM[1]/2. * TMath::Cos(phiRad));
       }
       // pozitive z
       int ind = 2*i;
       TGeoRotation *geoRot0 = new TGeoRotation("geoRot0", 90.0, phi, 90.0, 90.0+phi, 0.0, 0.0);
       fMatrixOfSM[ind] = new TGeoCombiTrans(Form("EmcalSM%2.2i",ind),
						 xpos,ypos, zpos, geoRot0);
       // negaive z
       ind++;
       double phiy = 90. + phi + 180.;
       if(phiy>=360.) phiy -= 360.;
       TGeoRotation *geoRot1 = new TGeoRotation("geoRot1", 90.0, phi, 90.0, phiy, 180.0, 0.0);
       fMatrixOfSM[ind] = new TGeoCombiTrans(Form("EmcalSM%2.2i",ind),
					   xpos,ypos,-zpos, geoRot1);
    } // for
  }
  fgInit = kTRUE; 
  AliInfo(" is ended");  
}

void AliEMCALGeometry::PrintGeometry()
{
  // Separate routine is callable from broswer; Nov 7,2006
  printf("\nInit: geometry of EMCAL named %s :\n", fGeoName.Data());
  if(fArrayOpts) {
    for(Int_t i=0; i<fArrayOpts->GetEntries(); i++){
      TObjString *o = (TObjString*)fArrayOpts->At(i);
      printf(" %i : %s \n", i, o->String().Data());
    }
  }
  printf("Granularity: %d in eta and %d in phi\n", GetNZ(), GetNPhi()) ;
  printf("Layout: phi = (%7.1f, %7.1f), eta = (%5.2f, %5.2f), IP = %7.2f -> for EMCAL envelope only\n",  
	   GetArm1PhiMin(), GetArm1PhiMax(),GetArm1EtaMin(), GetArm1EtaMax(), GetIPDistance() );

  printf( "               ECAL      : %d x (%f cm Pb, %f cm Sc) \n", 
  GetNECLayers(), GetECPbRadThick(), GetECScintThick() ) ; 
  printf("                fSampling %5.2f \n",  fSampling );
  if(fGeoName.Contains("SHISH")){
    printf(" fIPDistance       %6.3f cm \n", fIPDistance);
    if(fSteelFrontThick>0.) 
    printf(" fSteelFrontThick  %6.3f cm \n", fSteelFrontThick);
    printf(" fNPhi %i   |  fNZ %i \n", fNPhi, fNZ);
    printf(" fNCellsInModule %i : fNCellsInSupMod %i : fNCells %i\n",fNCellsInModule, fNCellsInSupMod, fNCells);
    if(fGeoName.Contains("MAY05")){
      printf(" fFrontSteelStrip         %6.4f cm (thickness of front steel strip)\n", 
      fFrontSteelStrip);
      printf(" fLateralSteelStrip       %6.4f cm (thickness of lateral steel strip)\n", 
      fLateralSteelStrip);
      printf(" fPassiveScintThick  %6.4f cm (thickness of front passive Sc tile)\n",
      fPassiveScintThick);
    }
    printf(" X:Y module size     %6.3f , %6.3f cm \n", fPhiModuleSize, fEtaModuleSize);
    printf(" X:Y   tile size     %6.3f , %6.3f cm \n", fPhiTileSize, fEtaTileSize);
    printf(" #of sampling layers %i(fNECLayers) \n", fNECLayers);
    printf(" fLongModuleSize     %6.3f cm \n", fLongModuleSize);
    printf(" #supermodule in phi direction %i \n", fNPhiSuperModule );
  }
  printf(" fILOSS %i : fIHADR %i \n", fILOSS, fIHADR);
  if(fGeoName.Contains("TRD")) {
    printf(" fTrd1Angle %7.4f\n", fTrd1Angle);
    printf(" f2Trd1Dx2  %7.4f\n",  f2Trd1Dx2);
    if(fGeoName.Contains("TRD2")) {
      printf(" fTrd2AngleY     %7.4f\n", fTrd2AngleY);
      printf(" f2Trd2Dy2       %7.4f\n", f2Trd2Dy2);
      printf(" fTubsR          %7.2f cm\n", fTubsR);
      printf(" fTubsTurnAngle  %7.4f\n", fTubsTurnAngle);
      printf(" fEmptySpace     %7.4f cm\n", fEmptySpace);
    } else if(fGeoName.Contains("TRD1")){
      printf("SM dimensions(TRD1) : dx %7.2f dy %7.2f dz %7.2f (SMOD, BOX)\n", 
      fParSM[0],fParSM[1],fParSM[2]);
      printf(" fPhiGapForSM  %7.4f cm (%7.4f <- phi size in degree)\n",  
      fPhiGapForSM, TMath::ATan2(fPhiGapForSM,fIPDistance)*TMath::RadToDeg());
      if(GetKey110DEG()) printf(" Last two modules have size 10 degree in  phi (180<phi<190)\n");
      printf(" phi SM boundaries \n"); 
      for(int i=0; i<fPhiBoundariesOfSM.GetSize()/2.; i++) {
	printf(" %i : %7.5f(%7.2f) -> %7.5f(%7.2f) : center %7.5f(%7.2f) \n", i, 
        fPhiBoundariesOfSM[2*i], fPhiBoundariesOfSM[2*i]*TMath::RadToDeg(),
	       fPhiBoundariesOfSM[2*i+1], fPhiBoundariesOfSM[2*i+1]*TMath::RadToDeg(),
               fPhiCentersOfSM[i], fPhiCentersOfSM[i]*TMath::RadToDeg());
      }
      printf(" fShishKebabTrd1Modules has %i modules : max eta %5.4f \n", 
	       fShishKebabTrd1Modules->GetSize(),fEtaMaxOfTRD1);

      printf("\n Cells grid in eta directions : size %i\n", fCentersOfCellsEtaDir.GetSize());
      for(Int_t i=0; i<fCentersOfCellsEtaDir.GetSize(); i++) {
        printf(" ind %2.2i : z %8.3f : x %8.3f \n", i, 
	       fCentersOfCellsEtaDir.At(i),fCentersOfCellsXDir.At(i));
        int ind=0; // Nov 21,2006
        for(Int_t iphi=0; iphi<fCentersOfCellsPhiDir.GetSize(); iphi++) {
          ind = iphi*fCentersOfCellsEtaDir.GetSize() + i;
          printf("%6.4f ", fEtaCentersOfCells[ind]);
          if((iphi+1)%12 == 0) printf("\n");
	}
        printf("\n");

      }
      printf(" Matrix transformation\n");
      for(Int_t i=0; i<12; i++) {
        TGeoMatrix *m = fMatrixOfSM[i];
        if(m==0) continue;
        const double *xyz = m->GetTranslation();
        printf(" %2.2i %s %s x %7.2f y %7.2f z %7.2f\n", 
	       i, m->GetName(), m->ClassName(), xyz[0],xyz[1],xyz[2]); 
      }

      printf("\n Cells grid in phi directions : size %i\n", fCentersOfCellsPhiDir.GetSize());
      for(Int_t i=0; i<fCentersOfCellsPhiDir.GetSize(); i++) {
        double phi=fPhiCentersOfCells.At(i);
        printf(" ind %2.2i : y %8.3f : phi %7.5f(%6.2f) \n", i, fCentersOfCellsPhiDir.At(i), 
	       phi, phi*TMath::RadToDeg());
      }
    }
  }
  cout<<endl;
}

void AliEMCALGeometry::PrintCellIndexes(Int_t absId, int pri, char *tit)
{
  // Service methods
  Int_t nSupMod, nModule, nIphi, nIeta;
  Int_t iphi, ieta;
  TVector3 vg;

  GetCellIndex(absId,  nSupMod, nModule, nIphi, nIeta);
  printf(" %s | absId : %i -> nSupMod %i nModule %i nIphi %i nIeta %i \n", tit, absId,  nSupMod, nModule, nIphi, nIeta);
  if(pri>0) {
    GetCellPhiEtaIndexInSModule(nSupMod,nModule,nIphi,nIeta, iphi,ieta);
    printf(" local SM index : iphi %i : ieta %i \n", iphi,ieta);
    GetGlobal(absId, vg);
    printf(" vglob : mag %7.2f : perp %7.2f : z %7.2f : eta %6.4f : phi %6.4f(%6.2f) \n", 
	   vg.Mag(), vg.Perp(), vg.Z(), vg.Eta(), vg.Phi(), vg.Phi()*TMath::RadToDeg());
  }
}

//______________________________________________________________________
void AliEMCALGeometry::CheckAdditionalOptions()
{
  // Feb 06,2006
  // Additional options that
  // can be used to select
  // the specific geometry of 
  // EMCAL to run
  // Dec 27,2006
  // adeed allILOSS= and allIHADR= for MIP investigation
  fArrayOpts = new TObjArray;
  Int_t nopt = AliEMCALHistoUtilities::ParseString(fGeoName, *fArrayOpts);
  if(nopt==1) { // no aditional option(s)
    fArrayOpts->Delete();
    delete fArrayOpts;
    fArrayOpts = 0; 
    return;
  }  		 
  for(Int_t i=1; i<nopt; i++){
    TObjString *o = (TObjString*)fArrayOpts->At(i); 

    TString addOpt = o->String();
    Int_t indj=-1;
    for(Int_t j=0; j<fNAdditionalOpts; j++) {
      TString opt = fAdditionalOpts[j];
      if(addOpt.Contains(opt,TString::kIgnoreCase)) {
	  indj = j;
        break;
      }
    }
    if(indj<0) {
      AliDebug(2,Form("<E> option |%s| unavailable : ** look to the file AliEMCALGeometry.h **\n", 
		      addOpt.Data()));
      assert(0);
    } else {
      AliDebug(2,Form("<I> option |%s| is valid : number %i : |%s|\n", 
		      addOpt.Data(), indj, fAdditionalOpts[indj]));
      if       (addOpt.Contains("NL=",TString::kIgnoreCase))   {// number of sampling layers
        sscanf(addOpt.Data(),"NL=%i", &fNECLayers);
        AliDebug(2,Form(" fNECLayers %i (new) \n", fNECLayers));
      } else if(addOpt.Contains("PBTH=",TString::kIgnoreCase)) {//Thickness of the Pb(fECPbRadThicknes)
        sscanf(addOpt.Data(),"PBTH=%f", &fECPbRadThickness);
      } else if(addOpt.Contains("SCTH=",TString::kIgnoreCase)) {//Thickness of the Sc(fECScintThick)
        sscanf(addOpt.Data(),"SCTH=%f", &fECScintThick);
      } else if(addOpt.Contains("LATSS=",TString::kIgnoreCase)) {// Thickness of lateral steel strip (fLateralSteelStrip)
        sscanf(addOpt.Data(),"LATSS=%f", &fLateralSteelStrip);
        AliDebug(2,Form(" fLateralSteelStrip %f (new) \n", fLateralSteelStrip));
      } else if(addOpt.Contains("ILOSS=",TString::kIgnoreCase)) {// As in Geant
        sscanf(addOpt.Data(),"ALLILOSS=%i", &fILOSS);
        AliDebug(2,Form(" fILOSS %i \n", fILOSS));
      } else if(addOpt.Contains("IHADR=",TString::kIgnoreCase)) {// As in Geant
        sscanf(addOpt.Data(),"ALLIHADR=%i", &fIHADR);
        AliDebug(2,Form(" fIHADR %i \n", fIHADR));
      }
    }
  }
}

void AliEMCALGeometry::DefineSamplingFraction()
{
  // Jun 05,2006
  // Look http://rhic.physics.wayne.edu/~pavlinov/ALICE/SHISHKEBAB/RES/linearityAndResolutionForTRD1.html
  // Keep for compatibilty
  //
  if(fNECLayers == 69) {        // 10% layer reduction
    fSampling = 12.55;
  } else if(fNECLayers == 61) { // 20% layer reduction
    fSampling = 12.80;
  } else if(fNECLayers == 77) {
    if       (fECScintThick>0.175 && fECScintThick<0.177) { // 10% Pb thicknes reduction
      fSampling = 10.5; // fECScintThick = 0.176, fECPbRadThickness=0.144;
    } else if(fECScintThick>0.191 && fECScintThick<0.193) { // 20% Pb thicknes reduction
      fSampling = 8.93; // fECScintThick = 0.192, fECPbRadThickness=0.128;
    }
  }
}

//______________________________________________________________________
void AliEMCALGeometry::GetCellPhiEtaIndexInSModuleFromTRUIndex(const Int_t itru, const Int_t iphitru, const Int_t ietatru, Int_t &iphiSM, Int_t &ietaSM) const 
{
  
  // This method transforms the (eta,phi) index of cells in a 
  // TRU matrix into Super Module (eta,phi) index.
  
  // Calculate in which row and column where the TRU are 
  // ordered in the SM

  Int_t col = itru/ fNTRUPhi ;
  Int_t row = itru - col*fNTRUPhi ;
   
  iphiSM = fNCellsInTRUPhi*row + iphitru  ;
  ietaSM = fNCellsInTRUEta*col + ietatru  ; 
}

//______________________________________________________________________
AliEMCALGeometry *  AliEMCALGeometry::GetInstance(){ 
  // Returns the pointer of the unique instance
  
  AliEMCALGeometry * rv = static_cast<AliEMCALGeometry *>( fgGeom );
  return rv; 
}

//______________________________________________________________________
AliEMCALGeometry* AliEMCALGeometry::GetInstance(const Text_t* name,
						const Text_t* title){
    // Returns the pointer of the unique instance

    AliEMCALGeometry * rv = 0; 
    if ( fgGeom == 0 ) {
      if ( strcmp(name,"") == 0 ) { // get default geometry
	 fgGeom = new AliEMCALGeometry(fgDefaultGeometryName, title);
      } else {
	 fgGeom = new AliEMCALGeometry(name, title);
      }  // end if strcmp(name,"")
      if ( fgInit ) rv = (AliEMCALGeometry * ) fgGeom;
      else {
	 rv = 0; 
	 delete fgGeom; 
	 fgGeom = 0; 
      } // end if fgInit
    }else{
	if ( strcmp(fgGeom->GetName(), name) != 0) {
	  printf("\ncurrent geometry is %s : ", fgGeom->GetName());
	  printf(" you cannot call %s ", name);  
	}else{
	  rv = (AliEMCALGeometry *) fgGeom; 
	} // end 
    }  // end if fgGeom
    return rv; 
}

Bool_t AliEMCALGeometry::IsInEMCAL(Double_t x, Double_t y, Double_t z) const {
  // Checks whether point is inside the EMCal volume, used in AliEMCALv*.cxx
  //
  // Code uses cylindrical approximation made of inner radius (for speed)
  //
  // Points behind EMCAl, i.e. R > outer radius, but eta, phi in acceptance 
  // are considered to inside

  Double_t r=sqrt(x*x+y*y);

  if ( r > fEnvelop[0] ) {
     Double_t theta;
     theta  =    TMath::ATan2(r,z);
     Double_t eta;
     if(theta == 0) 
       eta = 9999;
     else 
       eta    =   -TMath::Log(TMath::Tan(theta/2.));
     if (eta < fArm1EtaMin || eta > fArm1EtaMax)
       return 0;
 
     Double_t phi = TMath::ATan2(y,x) * 180./TMath::Pi();
     if (phi < 0) phi += 360;  // phi should go from 0 to 360 in this case
     if (phi > fArm1PhiMin && phi < fArm1PhiMax)
       return 1;
  }
  return 0;
}
// ==

//
// == Shish-kebab cases ==
//
Int_t AliEMCALGeometry::GetAbsCellId(Int_t nSupMod, Int_t nModule, Int_t nIphi, Int_t nIeta) const
{ 
  // 27-aug-04; 
  // corr. 21-sep-04; 
  //       13-oct-05; 110 degree case
  // May 31, 2006; ALICE numbering scheme:
  // 0 <= nSupMod < fNumberOfSuperModules
  // 0 <= nModule  < fNPHI * fNZ ( fNPHI * fNZ/2 for fKey110DEG=1)
  // 0 <= nIphi   < fNPHIdiv
  // 0 <= nIeta   < fNETAdiv
  // 0 <= absid   < fNCells
  static Int_t id=0; // have to change from 0 to fNCells-1
  if(fKey110DEG == 1 && nSupMod >= 10) { // 110 degree case; last two supermodules
    id  = fNCellsInSupMod*10 + (fNCellsInSupMod/2)*(nSupMod-10);
  } else {
    id  = fNCellsInSupMod*nSupMod;
  }
  id += fNCellsInModule *nModule;
  id += fNPHIdiv *nIphi;
  id += nIeta;
  if(id<0 || id >= fNCells) {
//     printf(" wrong numerations !!\n");
//     printf("    id      %6i(will be force to -1)\n", id);
//     printf("    fNCells %6i\n", fNCells);
//     printf("    nSupMod %6i\n", nSupMod);
//     printf("    nModule  %6i\n", nModule);
//     printf("    nIphi   %6i\n", nIphi);
//     printf("    nIeta   %6i\n", nIeta);
    id = -TMath::Abs(id); // if negative something wrong
  }
  return id;
}

Bool_t  AliEMCALGeometry::CheckAbsCellId(Int_t absId) const
{ 
  // May 31, 2006; only trd1 now
  if(absId<0 || absId >= fNCells) return kFALSE;
  else                            return kTRUE;
}

Bool_t AliEMCALGeometry::GetCellIndex(Int_t absId,Int_t &nSupMod,Int_t &nModule,Int_t &nIphi,Int_t &nIeta) const
{ 
  // 21-sep-04; 19-oct-05;
  // May 31, 2006; ALICE numbering scheme:
  // 
  // In:
  // absId   - cell is as in Geant,     0<= absId   < fNCells;
  // Out:
  // nSupMod - super module(SM) number, 0<= nSupMod < fNumberOfSuperModules;
  // nModule  - module number in SM,     0<= nModule  < fNCellsInSupMod/fNCellsInSupMod or(/2) for tow last SM (10th and 11th);
  // nIphi   - cell number in phi driection inside module; 0<= nIphi < fNPHIdiv; 
  // nIeta   - cell number in eta driection inside module; 0<= nIeta < fNETAdiv; 
  // 
  static Int_t tmp=0, sm10=0;
  if(!CheckAbsCellId(absId)) return kFALSE;

  sm10 = fNCellsInSupMod*10;
  if(fKey110DEG == 1 && absId >= sm10) { // 110 degree case; last two supermodules  
    nSupMod = (absId-sm10) / (fNCellsInSupMod/2) + 10;
    tmp     = (absId-sm10) % (fNCellsInSupMod/2);
  } else {
    nSupMod = absId / fNCellsInSupMod;
    tmp     = absId % fNCellsInSupMod;
  }

  nModule  = tmp / fNCellsInModule;
  tmp     = tmp % fNCellsInModule;
  nIphi   = tmp / fNPHIdiv;
  nIeta   = tmp % fNPHIdiv;

  return kTRUE;
}

void AliEMCALGeometry::GetModulePhiEtaIndexInSModule(Int_t nSupMod, Int_t nModule,  int &iphim, int &ietam) const
{ 
  // added nSupMod; - 19-oct-05 !
  // Alice numbering scheme        - Jun 01,2006 
  // ietam, iphi - indexes of module in two dimensional grid of SM
  // ietam - have to change from 0 to fNZ-1
  // iphim - have to change from 0 to nphi-1 (fNPhi-1 or fNPhi/2-1)
  static Int_t nphi;

  if(fKey110DEG == 1 && nSupMod>=10) nphi = fNPhi/2;
  else                               nphi = fNPhi;

  ietam = nModule/nphi;
  iphim = nModule%nphi;
}

void AliEMCALGeometry::GetCellPhiEtaIndexInSModule(Int_t nSupMod, Int_t nModule, Int_t nIphi, Int_t nIeta, 
int &iphi, int &ieta) const
{ 
  // 
  // Added nSupMod; Nov 25, 05
  // Alice numbering scheme  - Jun 01,2006 
  // IN:
  // nSupMod - super module(SM) number, 0<= nSupMod < fNumberOfSuperModules;
  // nModule  - module number in SM,     0<= nModule  < fNCellsInSupMod/fNCellsInSupMod or(/2) for tow last SM (10th and 11th);
  // nIphi   - cell number in phi driection inside module; 0<= nIphi < fNPHIdiv; 
  // nIeta   - cell number in eta driection inside module; 0<= nIeta < fNETAdiv; 
  // 
 // OUT:
  // ieta, iphi - indexes of cell(tower) in two dimensional grid of SM
  // ieta - have to change from 0 to (fNZ*fNETAdiv-1)
  // iphi - have to change from 0 to (fNPhi*fNPHIdiv-1 or fNPhi*fNPHIdiv/2-1)
  //
  static Int_t iphim, ietam;

  GetModulePhiEtaIndexInSModule(nSupMod,nModule, iphim, ietam); 
  //  ieta  = ietam*fNETAdiv + (1-nIeta); // x(module) = -z(SM) 
  ieta  = ietam*fNETAdiv + (fNETAdiv - 1 - nIeta); // x(module) = -z(SM) 
  iphi  = iphim*fNPHIdiv + nIphi;     // y(module) =  y(SM) 

  if(iphi<0 || ieta<0)
  AliDebug(1,Form(" nSupMod %i nModule %i nIphi %i nIeta %i => ieta %i iphi %i\n", 
  nSupMod, nModule, nIphi, nIeta, ieta, iphi));
}

Int_t  AliEMCALGeometry::GetSuperModuleNumber(Int_t absId)  const
{
  // Return the number of the  supermodule given the absolute
  // ALICE numbering id

  static Int_t nSupMod, nModule, nIphi, nIeta;
  GetCellIndex(absId, nSupMod, nModule, nIphi, nIeta);
  return nSupMod;
} 

void  AliEMCALGeometry::GetModuleIndexesFromCellIndexesInSModule(Int_t nSupMod, Int_t iphi, Int_t ieta, 
			Int_t &iphim, Int_t &ietam, Int_t &nModule) const
{
  // Transition from cell indexes (ieta,iphi) to module indexes (ietam,iphim, nModule)
  static Int_t nphi;
  nphi  = GetNumberOfModuleInPhiDirection(nSupMod);  

  ietam  = ieta/fNETAdiv;
  iphim  = iphi/fNPHIdiv;
  nModule = ietam * nphi + iphim; 
}

Int_t  AliEMCALGeometry::GetAbsCellIdFromCellIndexes(Int_t nSupMod, Int_t iphi, Int_t ieta) const
{
  // Transition from super module number(nSupMod) and cell indexes (ieta,iphi) to absId
  static Int_t ietam, iphim, nModule;
  static Int_t nIeta, nIphi; // cell indexes in module

  GetModuleIndexesFromCellIndexesInSModule(nSupMod, iphi, ieta, ietam, iphim, nModule);

  nIeta = ieta%fNETAdiv;
  nIeta = fNETAdiv - 1 - nIeta;
  nIphi = iphi%fNPHIdiv;

  return GetAbsCellId(nSupMod, nModule, nIphi, nIeta);
}


// Methods for AliEMCALRecPoint - Feb 19, 2006
Bool_t AliEMCALGeometry::RelPosCellInSModule(Int_t absId, Double_t &xr, Double_t &yr, Double_t &zr) const
{
  // Look to see what the relative
  // position inside a given cell is
  // for a recpoint.
  // Alice numbering scheme - Jun 08, 2006
  // In:
  // absId   - cell is as in Geant,     0<= absId   < fNCells;
  // OUT:
  // xr,yr,zr - x,y,z coordinates of cell with absId inside SM 

  // Shift index taking into account the difference between standard SM 
  // and SM of half size in phi direction
  const Int_t phiIndexShift = fCentersOfCellsPhiDir.GetSize()/4; // Nov 22, 2006; was 6 for cas 2X2
  static Int_t nSupMod, nModule, nIphi, nIeta, iphi, ieta;
  if(!CheckAbsCellId(absId)) return kFALSE;

  GetCellIndex(absId, nSupMod, nModule, nIphi, nIeta);
  GetCellPhiEtaIndexInSModule(nSupMod,nModule,nIphi,nIeta, iphi, ieta); 
 
  xr = fCentersOfCellsXDir.At(ieta);
  zr = fCentersOfCellsEtaDir.At(ieta);

  if(nSupMod<10) {
    yr = fCentersOfCellsPhiDir.At(iphi);
  } else {
    yr = fCentersOfCellsPhiDir.At(iphi + phiIndexShift);
  }
  AliDebug(1,Form("absId %i nSupMod %i iphi %i ieta %i xr %f yr %f zr %f ",absId,nSupMod,iphi,ieta,xr,yr,zr));

  return kTRUE;
}

Bool_t AliEMCALGeometry::RelPosCellInSModule(Int_t absId, Double_t loc[3]) const
{
  // Alice numbering scheme - Jun 03, 2006
  loc[0] = loc[1] = loc[2]=0.0;
  if(RelPosCellInSModule(absId, loc[0],loc[1],loc[2])) {
    return kTRUE;
  }
  return kFALSE;
}

Bool_t AliEMCALGeometry::RelPosCellInSModule(Int_t absId, TVector3 &vloc) const
{
  static Double_t loc[3];
  if(RelPosCellInSModule(absId,loc)) {
    vloc.SetXYZ(loc[0], loc[1], loc[2]);
    return kTRUE;
  } else {
    vloc.SetXYZ(0,0,0);
    return kFALSE;
  }
  // Alice numbering scheme - Jun 03, 2006
}

void AliEMCALGeometry::CreateListOfTrd1Modules()
{
  // Generate the list of Trd1 modules
  // which will make up the EMCAL
  // geometry

  AliDebug(2,Form(" AliEMCALGeometry::CreateListOfTrd1Modules() started "));

  AliEMCALShishKebabTrd1Module *mod=0, *mTmp=0; // current module
  if(fShishKebabTrd1Modules == 0) {
    fShishKebabTrd1Modules = new TList;
    fShishKebabTrd1Modules->SetName("ListOfTRD1");
    for(int iz=0; iz< GetNZ(); iz++) { 
      if(iz==0) { 
        mod  = new AliEMCALShishKebabTrd1Module(TMath::Pi()/2.,this);
      } else {
        mTmp  = new AliEMCALShishKebabTrd1Module(*mod);
        mod   = mTmp;
      }
      fShishKebabTrd1Modules->Add(mod);
    }
  } else {
    AliDebug(2,Form(" Already exits : "));
  }
  mod = (AliEMCALShishKebabTrd1Module*)fShishKebabTrd1Modules->At(fShishKebabTrd1Modules->GetSize()-1);
  fEtaMaxOfTRD1 = mod->GetMaxEtaOfModule(0);

  AliDebug(2,Form(" fShishKebabTrd1Modules has %i modules : max eta %5.4f \n", 
		  fShishKebabTrd1Modules->GetSize(),fEtaMaxOfTRD1));
  // Feb 20,2006;
  // Jun 01, 2006 - ALICE numbering scheme
  // define grid for cells in eta(z) and x directions in local coordinates system of SM
  // Works just for 2x2 case only -- ?? start here
  // 
  //
  // Define grid for cells in phi(y) direction in local coordinates system of SM
  // as for 2X2 as for 3X3 - Nov 8,2006
  // 
  AliDebug(2,Form(" Cells grid in phi directions : size %i\n", fCentersOfCellsPhiDir.GetSize()));
  Int_t ind=0; // this is phi index
  Int_t ieta=0, nModule=0, iphiTemp;
  Double_t xr, zr, theta, phi, eta, r, x,y;
  TVector3 vglob;
  Double_t ytCenterModule=0.0, ytCenterCell=0.0;

  fCentersOfCellsPhiDir.Set(fNPhi*fNPHIdiv);
  fPhiCentersOfCells.Set(fNPhi*fNPHIdiv);

  Double_t R0 = GetIPDistance() + GetLongModuleSize()/2.;
  for(Int_t it=0; it<fNPhi; it++) { // cycle on modules
    ytCenterModule = -fParSM[1] + fPhiModuleSize*(2*it+1)/2;  // center of module
    for(Int_t ic=0; ic<fNPHIdiv; ic++) { // cycle on cells in module
      if(fNPHIdiv==2) {
        ytCenterCell = ytCenterModule + fPhiTileSize *(2*ic-1)/2.;
      } else if(fNPHIdiv==3){
        ytCenterCell = ytCenterModule + fPhiTileSize *(ic-1);
      } else if(fNPHIdiv==1){
        ytCenterCell = ytCenterModule;
      }
      fCentersOfCellsPhiDir.AddAt(ytCenterCell,ind);
      // Define grid on phi direction
      // Grid is not the same for different eta bin;
      // Effect is small but is still here
      phi = TMath::ATan2(ytCenterCell, R0);
      fPhiCentersOfCells.AddAt(phi, ind);

      AliDebug(2,Form(" ind %2.2i : y %8.3f ", ind, fCentersOfCellsPhiDir.At(ind))); 
      ind++;
    }
  }

  fCentersOfCellsEtaDir.Set(fNZ *fNETAdiv);
  fCentersOfCellsXDir.Set(fNZ *fNETAdiv);
  fEtaCentersOfCells.Set(fNZ *fNETAdiv * fNPhi*fNPHIdiv);
  AliDebug(2,Form(" Cells grid in eta directions : size %i\n", fCentersOfCellsEtaDir.GetSize()));
  for(Int_t it=0; it<fNZ; it++) {
    AliEMCALShishKebabTrd1Module *trd1 = GetShishKebabModule(it);
    nModule = fNPhi*it;
    for(Int_t ic=0; ic<fNETAdiv; ic++) {
      if(fNPHIdiv==2) {
        trd1->GetCenterOfCellInLocalCoordinateofSM(ic, xr, zr);      // case of 2X2
        GetCellPhiEtaIndexInSModule(0, nModule, 0, ic, iphiTemp, ieta); 
      } if(fNPHIdiv==3) {
        trd1->GetCenterOfCellInLocalCoordinateofSM_3X3(ic, xr, zr);  // case of 3X3
        GetCellPhiEtaIndexInSModule(0, nModule, 0, ic, iphiTemp, ieta); 
      } if(fNPHIdiv==1) {
        trd1->GetCenterOfCellInLocalCoordinateofSM_1X1(xr, zr);      // case of 1X1
        GetCellPhiEtaIndexInSModule(0, nModule, 0, ic, iphiTemp, ieta); 
      }
      fCentersOfCellsXDir.AddAt(float(xr) - fParSM[0],ieta);
      fCentersOfCellsEtaDir.AddAt(float(zr) - fParSM[2],ieta);
      // Define grid on eta direction for each bin in phi
      for(int iphi=0; iphi<fCentersOfCellsPhiDir.GetSize(); iphi++) {
        x = xr + trd1->GetRadius();
        y = fCentersOfCellsPhiDir[iphi];
        r = TMath::Sqrt(x*x + y*y + zr*zr);
        theta = TMath::ACos(zr/r);
        eta   = AliEMCALShishKebabTrd1Module::ThetaToEta(theta);
	//        ind   = ieta*fCentersOfCellsPhiDir.GetSize() + iphi;
        ind   = iphi*fCentersOfCellsEtaDir.GetSize() + ieta;
        fEtaCentersOfCells.AddAt(eta, ind);
      }
      //printf(" ieta %i : xr + trd1->GetRadius() %f : zr %f : eta %f \n", ieta, xr + trd1->GetRadius(), zr, eta);
    }
  }
  for(Int_t i=0; i<fCentersOfCellsEtaDir.GetSize(); i++) {
    AliDebug(2,Form(" ind %2.2i : z %8.3f : x %8.3f", i+1, 
                    fCentersOfCellsEtaDir.At(i),fCentersOfCellsXDir.At(i)));
  }

}

void  AliEMCALGeometry::GetTransformationForSM()
{
  //Uses the geometry manager to
  //load the transformation matrix
  //for the supermodules
  // Unused after 19 Jan, 2007 - keep for compatibility; 

  return;
  static Bool_t transInit=kFALSE;
  if(transInit) return;

  int i=0;
  if(gGeoManager == 0) {
    Info("CreateTransformationForSM() "," Load geometry : TGeoManager::Import()");
    assert(0);
  }
  TGeoNode *tn = gGeoManager->GetTopNode();
  TGeoNode *node=0, *xen1 = 0;
  for(i=0; i<tn->GetNdaughters(); i++) {
    node = tn->GetDaughter(i);
    TString ns(node->GetName());
    if(ns.Contains(GetNameOfEMCALEnvelope())) {
      xen1 = node;
      break;
    }
  }
  if(!xen1) {
    Info("CreateTransformationForSM() "," geometry has not EMCAL envelope with name %s", 
    GetNameOfEMCALEnvelope());
    assert(0);
  }
  printf(" i %i : EMCAL Envelope is %s : #SM %i \n", i, xen1->GetName(), xen1->GetNdaughters());
  for(i=0; i<xen1->GetNdaughters(); i++) {
    TGeoNodeMatrix *sm = (TGeoNodeMatrix*)xen1->GetDaughter(i);
    fMatrixOfSM[i] = sm->GetMatrix();
    //Compiler doesn't like this syntax...
    //    printf(" %i : matrix %x \n", i, fMatrixOfSM[i]);
  }
  transInit = kTRUE;
}

void AliEMCALGeometry::GetGlobal(const Double_t *loc, Double_t *glob, int ind) const
{
  // Figure out the global numbering
  // of a given supermodule from the
  // local numbering
  // Alice numbering - Jun 03,2006
  //  if(fMatrixOfSM[0] == 0) GetTransformationForSM();

  if(ind>=0 && ind < GetNumberOfSuperModules()) {
    fMatrixOfSM[ind]->LocalToMaster(loc, glob);
  }
}

void AliEMCALGeometry::GetGlobal(const TVector3 &vloc, TVector3 &vglob, int ind) const
{
  //Figure out the global numbering
  //of a given supermodule from the
  //local numbering given a 3-vector location

  static Double_t tglob[3], tloc[3];
  vloc.GetXYZ(tloc);
  GetGlobal(tloc, tglob, ind);
  vglob.SetXYZ(tglob[0], tglob[1], tglob[2]);
}

void AliEMCALGeometry::GetGlobal(Int_t absId , double glob[3]) const
{ 
  // Alice numbering scheme - Jun 03, 2006
  static Int_t nSupMod, nModule, nIphi, nIeta;
  static double loc[3];

  glob[0]=glob[1]=glob[2]=0.0; // bad case
  if(RelPosCellInSModule(absId, loc)) {
    GetCellIndex(absId, nSupMod, nModule, nIphi, nIeta);
    fMatrixOfSM[nSupMod]->LocalToMaster(loc, glob);
  }
}

void AliEMCALGeometry::GetGlobal(Int_t absId , TVector3 &vglob) const
{ 
  // Alice numbering scheme - Jun 03, 2006
  static Double_t glob[3];

  GetGlobal(absId, glob);
  vglob.SetXYZ(glob[0], glob[1], glob[2]);

}

void AliEMCALGeometry::GetGlobal(const AliRecPoint *rp, TVector3 &vglob) const
{
  // Figure out the global numbering
  // of a given supermodule from the
  // local numbering for RecPoints

  static TVector3 vloc;
  static Int_t nSupMod, nModule, nIphi, nIeta;

  AliRecPoint *rpTmp = (AliRecPoint*)rp; // const_cast ??
  if(!rpTmp) return;
  AliEMCALRecPoint *rpEmc = (AliEMCALRecPoint*)rpTmp;

  GetCellIndex(rpEmc->GetAbsId(0), nSupMod, nModule, nIphi, nIeta);
  rpTmp->GetLocalPosition(vloc);
  GetGlobal(vloc, vglob, nSupMod);
}

void AliEMCALGeometry::EtaPhiFromIndex(Int_t absId,Double_t &eta,Double_t &phi) const
{
  // Nov 16, 2006- float to double
  // version for TRD1 only
  static TVector3 vglob;
  GetGlobal(absId, vglob);
  eta = vglob.Eta();
  phi = vglob.Phi();
}

void AliEMCALGeometry::EtaPhiFromIndex(Int_t absId,Float_t &eta,Float_t &phi) const
{
  // Nov 16,2006 - should be discard in future
  static TVector3 vglob;
  GetGlobal(absId, vglob);
  eta = float(vglob.Eta());
  phi = float(vglob.Phi());
}

Bool_t AliEMCALGeometry::GetPhiBoundariesOfSM(Int_t nSupMod, Double_t &phiMin, Double_t &phiMax) const
{
  // 0<= nSupMod <=11; phi in rad
  static int i;
  if(nSupMod<0 || nSupMod >11) return kFALSE; 
  i = nSupMod/2;
  phiMin = fPhiBoundariesOfSM[2*i];
  phiMax = fPhiBoundariesOfSM[2*i+1];
  return kTRUE; 
}

Bool_t AliEMCALGeometry::GetPhiBoundariesOfSMGap(Int_t nPhiSec, Double_t &phiMin, Double_t &phiMax) const
{
  // 0<= nPhiSec <=4; phi in rad
  // 0;  gap boundaries between  0th&2th  | 1th&3th SM
  // 1;  gap boundaries between  2th&4th  | 3th&5th SM
  // 2;  gap boundaries between  4th&6th  | 5th&7th SM
  // 3;  gap boundaries between  6th&8th  | 7th&9th SM
  // 4;  gap boundaries between  8th&10th | 9th&11th SM
  if(nPhiSec<0 || nPhiSec >4) return kFALSE; 
  phiMin = fPhiBoundariesOfSM[2*nPhiSec+1];
  phiMax = fPhiBoundariesOfSM[2*nPhiSec+2];
  return kTRUE; 
}

Bool_t AliEMCALGeometry::SuperModuleNumberFromEtaPhi(Double_t eta, Double_t phi, Int_t &nSupMod) const
{ 
  // Return false if phi belongs a phi cracks between SM
 
  static Int_t i;

  if(TMath::Abs(eta) > fEtaMaxOfTRD1) return kFALSE;

  phi = TVector2::Phi_0_2pi(phi); // move phi to (0,2pi) boundaries
  for(i=0; i<6; i++) {
    if(phi>=fPhiBoundariesOfSM[2*i] && phi<=fPhiBoundariesOfSM[2*i+1]) {
      nSupMod = 2*i;
      if(eta < 0.0) nSupMod++;
      AliDebug(1,Form("eta %f phi %f(%5.2f) : nSupMod %i : #bound %i", eta,phi,phi*TMath::RadToDeg(), nSupMod,i));
      return kTRUE;
    }
  }
  return kFALSE;
}

Bool_t AliEMCALGeometry::GetAbsCellIdFromEtaPhi(Double_t eta, Double_t phi, Int_t &absId) const
{
  // Nov 17,2006
  // stay here - phi problem as usual 
  static Int_t nSupMod, i, ieta, iphi, etaShift, nphi;
  static Double_t absEta=0.0, d=0.0, dmin=0.0, phiLoc;
  absId = nSupMod = - 1;
  if(SuperModuleNumberFromEtaPhi(eta, phi, nSupMod)) {
    // phi index first
    phi    = TVector2::Phi_0_2pi(phi);
    phiLoc = phi - fPhiCentersOfSM[nSupMod/2];
    nphi   = fPhiCentersOfCells.GetSize();
    if(nSupMod>=10) {
      phiLoc = phi - 190.*TMath::DegToRad();
      nphi  /= 2;
    }

    dmin   = TMath::Abs(fPhiCentersOfCells[0]-phiLoc);
    iphi   = 0;
    for(i=1; i<nphi; i++) {
      d = TMath::Abs(fPhiCentersOfCells[i] - phiLoc);
      if(d < dmin) {
        dmin = d;
        iphi = i;
      }
      //      printf(" i %i : d %f : dmin %f : fPhiCentersOfCells[i] %f \n", i, d, dmin, fPhiCentersOfCells[i]);
    }
    // odd SM are turned with respect of even SM - reverse indexes
    AliDebug(2,Form(" iphi %i : dmin %f (phi %f, phiLoc %f ) ", iphi, dmin, phi, phiLoc));
    // eta index
    absEta   = TMath::Abs(eta);
    etaShift = iphi*fCentersOfCellsEtaDir.GetSize();
    dmin     = TMath::Abs(fEtaCentersOfCells[etaShift]-absEta);
    ieta     = 0;
    for(i=1; i<fCentersOfCellsEtaDir.GetSize(); i++) {
      d = TMath::Abs(fEtaCentersOfCells[i+etaShift] - absEta);
      if(d < dmin) {
        dmin = d;
        ieta = i;
      }
    }
    AliDebug(2,Form(" ieta %i : dmin %f (eta=%f) : nSupMod %i ", ieta, dmin, eta, nSupMod));

    if(eta<0) iphi = (nphi-1) - iphi;
    absId = GetAbsCellIdFromCellIndexes(nSupMod, iphi, ieta);

    return kTRUE;
  }
  return kFALSE;
}

AliEMCALShishKebabTrd1Module* AliEMCALGeometry::GetShishKebabModule(Int_t neta)
{
  //This method was too long to be
  //included in the header file - the
  //rule checker complained about it's
  //length, so we move it here.  It returns the
  //shishkebabmodule at a given eta index point.

  static AliEMCALShishKebabTrd1Module* trd1=0;
  if(fShishKebabTrd1Modules && neta>=0 && neta<fShishKebabTrd1Modules->GetSize()) {
    trd1 = (AliEMCALShishKebabTrd1Module*)fShishKebabTrd1Modules->At(neta);
  } else trd1 = 0;
  return trd1;
}

void AliEMCALGeometry::Browse(TBrowser* b)
{
  if(fShishKebabTrd1Modules) b->Add(fShishKebabTrd1Modules);
  for(int i=0; i<fNumberOfSuperModules; i++) {
    if(fMatrixOfSM[i])  b->Add(fMatrixOfSM[i]);
  }
}

Bool_t AliEMCALGeometry::IsFolder() const
{
  if(fShishKebabTrd1Modules) return kTRUE;
  else                       return kFALSE;
}