1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 //_________________________________________________________________________
19 // Geometry class for EMCAL : singleton
20 // EMCAL consists of layers of scintillator and lead
21 // Places the the Barrel Geometry of The EMCAL at Midrapidity
22 // between 80 and 180(or 190) degrees of Phi and
24 // Number of Modules and Layers may be controlled by
25 // the name of the instance defined
26 //*-- Author: Sahal Yacoob (LBL / UCT)
27 // and : Yves Schutz (SUBATECH)
28 // and : Jennifer Klay (LBL)
29 // SHASHLYK : Aleksei Pavlinov (WSU)
30 // SuperModules -> module(or tower) -> cell
32 // --- AliRoot header files ---
34 #include "Riostream.h"
39 #include <TObjArray.h>
40 #include <TGeoManager.h>
42 #include <TGeoMatrix.h>
44 #include <TObjString.h>
45 #include <TClonesArray.h>
48 //#include "AliConst.h"
52 #include "AliEMCALGeometry.h"
53 #include "AliEMCALShishKebabTrd1Module.h"
54 #include "AliEMCALRecPoint.h"
55 #include "AliEMCALDigit.h"
56 #include "AliEMCALHistoUtilities.h"
57 #include "AliEMCALAlignData.h"
59 ClassImp(AliEMCALGeometry)
61 // these initialisations are needed for a singleton
62 AliEMCALGeometry *AliEMCALGeometry::fgGeom = 0;
63 Bool_t AliEMCALGeometry::fgInit = kFALSE;
64 AliEMCALAlignData *AliEMCALGeometry::fgAlignData = 0;
66 //______________________________________________________________________
67 AliEMCALGeometry::~AliEMCALGeometry(void){
70 //______________________________________________________________________
71 void AliEMCALGeometry::Init(void){
72 // Initializes the EMCAL parameters
73 // naming convention : GUV_WX_N_ gives the composition of a tower
74 // WX inform about the composition of the EM calorimeter section:
75 // thickness in mm of Pb radiator (W) and of scintillator (X), and number of scintillator layers (N)
76 // New geometry: EMCAL_55_25
77 // 24-aug-04 for shish-kebab
78 // SHISH_25 or SHISH_62
79 // 11-oct-05 - correction for pre final design
80 // Feb 06,2006 - decrease the weight of EMCAL
82 fAdditionalOpts[0] = "nl="; // number of sampling layers (fNECLayers)
83 fAdditionalOpts[1] = "pbTh="; // cm, Thickness of the Pb (fECPbRadThick)
84 fAdditionalOpts[2] = "scTh="; // cm, Thickness of the Sc (fECScintThick)
85 fAdditionalOpts[3] = "latSS="; // cm, Thickness of lateral steel strip (fLateralSteelStrip)
87 fNAdditionalOpts = sizeof(fAdditionalOpts) / sizeof(char*);
89 fgInit = kFALSE; // Assume failed until proven otherwise.
93 if(fGeoName.Contains("110DEG")) fKey110DEG = 1; // for GetAbsCellId
94 fShishKebabTrd1Modules = 0;
95 fTrd2AngleY = f2Trd2Dy2 = fEmptySpace = fTubsR = fTubsTurnAngle = 0;
97 fNZ = 114; // granularity along Z (eta)
98 fNPhi = 168; // granularity in phi (azimuth)
99 fArm1PhiMin = 60.0; // degrees, Starting EMCAL Phi position
100 fArm1PhiMax = 180.0; // degrees, Ending EMCAL Phi position
101 fArm1EtaMin = -0.7; // pseudorapidity, Starting EMCAL Eta position
102 fArm1EtaMax = +0.7; // pseudorapidity, Ending EMCAL Eta position
103 fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL
104 fPhiGapForSM = 0.; // cm, only for final TRD1 geometry
105 for(int i=0; i<12; i++) fMatrixOfSM[i] = 0;
108 if(fGeoName.Contains("SHISH")){ // Only shahslyk now
109 // 7-sep-05; integration issue
110 fArm1PhiMin = 80.0; // 60 -> 80
111 fArm1PhiMax = 180.0; // 180 -> 190
113 fNumberOfSuperModules = 10; // 12 = 6 * 2 (6 in phi, 2 in Z);
114 fSteelFrontThick = 2.54; // 9-sep-04
116 fFrontSteelStrip = fPassiveScintThick = 0.0; // 13-may-05
117 fLateralSteelStrip = 0.025; // before MAY 2005
118 fPhiModuleSize = fEtaModuleSize = 11.4;
119 fPhiTileSize = fEtaTileSize = 5.52; // (11.4-5.52*2)/2. = 0.18 cm (wall thickness)
122 fAlFrontThick = fGap2Active = 0;
123 fNPHIdiv = fNETAdiv = 2;
126 fECScintThick = fECPbRadThickness = 0.2;
127 fSampling = 1.; // 30-aug-04 - should be calculated
128 if(fGeoName.Contains("TWIST")) { // all about EMCAL module
129 fNZ = 27; // 16-sep-04
130 } else if(fGeoName.Contains("TRD")) {
131 fIPDistance = 428.0; // 11-may-05
132 fSteelFrontThick = 0.0; // 3.17 -> 0.0; 28-mar-05 : no stell plate
135 fPhiModuleSize = fEtaModuleSize = 12.26;
136 fNZ = 26; // 11-oct-04
137 fTrd1Angle = 1.3; // in degree
138 // 18-nov-04; 1./0.08112=12.327
139 // http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/linearityAndResolutionForTRD1.html
140 if(fGeoName.Contains("TRD1")) { // 30-jan-05
142 fPhiGapForSM = 2.; // cm, only for final TRD1 geometry
143 if(fGeoName.Contains("MAY05") || fGeoName.Contains("WSUC") || fGeoName.Contains("FINAL")){
144 fNumberOfSuperModules = 12; // 20-may-05
145 if(fGeoName.Contains("WSUC")) fNumberOfSuperModules = 1; // 27-may-05
146 fNECLayers = 77; // (13-may-05 from V.Petrov)
147 fPhiModuleSize = 12.5; // 20-may-05 - rectangular shape
148 fEtaModuleSize = 11.9;
149 fECScintThick = fECPbRadThickness = 0.16;// (13-may-05 from V.Petrov)
150 fFrontSteelStrip = 0.025;// 0.025cm = 0.25mm (13-may-05 from V.Petrov)
151 fLateralSteelStrip = 0.01; // 0.01cm = 0.1mm (13-may-05 from V.Petrov) - was 0.025
152 fPassiveScintThick = 0.8; // 0.8cm = 8mm (13-may-05 from V.Petrov)
154 fTrd1Angle = 1.5; // 1.3 or 1.5
156 if(fGeoName.Contains("FINAL")) { // 9-sep-05
157 fNumberOfSuperModules = 10;
158 if(fGeoName.Contains("110DEG")) {
159 fNumberOfSuperModules = 12;// last two modules have size 10 degree in phi (180<phi<190)
160 fArm1PhiMax = 200.0; // for XEN1 and turn angle of super modules
162 fPhiModuleSize = 12.26 - fPhiGapForSM / Float_t(fNPhi); // first assumption
163 fEtaModuleSize = fPhiModuleSize;
164 if(fGeoName.Contains("HUGE")) fNECLayers *= 3; // 28-oct-05 for analysing leakage
167 } else if(fGeoName.Contains("TRD2")) { // 30-jan-05
168 fSteelFrontThick = 0.0; // 11-mar-05
169 fIPDistance+= fSteelFrontThick; // 1-feb-05 - compensate absence of steel plate
170 fTrd1Angle = 1.64; // 1.3->1.64
171 fTrd2AngleY = fTrd1Angle; // symmetric case now
172 fEmptySpace = 0.2; // 2 mm
173 fTubsR = fIPDistance; // 31-jan-05 - as for Fred case
175 fPhiModuleSize = fTubsR*2.*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.);
176 fPhiModuleSize -= fEmptySpace/2.; // 11-mar-05
177 fEtaModuleSize = fPhiModuleSize; // 20-may-05
180 fNPHIdiv = fNETAdiv = 2; // 13-oct-04 - division again
181 if(fGeoName.Contains("3X3")) { // 23-nov-04
182 fNPHIdiv = fNETAdiv = 3;
183 } else if(fGeoName.Contains("4X4")) {
184 fNPHIdiv = fNETAdiv = 4;
187 fPhiTileSize = fPhiModuleSize/2. - fLateralSteelStrip; // 13-may-05
188 fEtaTileSize = fEtaModuleSize/2. - fLateralSteelStrip; // 13-may-05
190 if(fGeoName.Contains("25")){
192 fECScintThick = fECPbRadThickness = 0.5;
194 if(fGeoName.Contains("WSUC")){ // 18-may-05 - about common structure
195 fShellThickness = 30.; // should be change
199 CheckAdditionalOptions();
201 // constant for transition absid <--> indexes
202 fNCellsInTower = fNPHIdiv*fNETAdiv;
203 fNCellsInSupMod = fNCellsInTower*fNPhi*fNZ;
204 fNCells = fNCellsInSupMod*fNumberOfSuperModules;
205 if(fGeoName.Contains("110DEG")) fNCells -= fNCellsInSupMod;
207 fLongModuleSize = fNECLayers*(fECScintThick + fECPbRadThickness);
208 if(fGeoName.Contains("MAY05")) fLongModuleSize += (fFrontSteelStrip + fPassiveScintThick);
211 if(fGeoName.Contains("TRD")) {
212 f2Trd1Dx2 = fEtaModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd1Angle*TMath::DegToRad()/2.);
213 if(fGeoName.Contains("TRD2")) { // 27-jan-05
214 f2Trd2Dy2 = fPhiModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.);
217 } else Fatal("Init", "%s is an undefined geometry!", fGeoName.Data()) ;
219 fNPhiSuperModule = fNumberOfSuperModules/2;
220 if(fNPhiSuperModule<1) fNPhiSuperModule = 1;
221 //There is always one more scintillator than radiator layer because of the first block of aluminium
222 fShellThickness = fAlFrontThick + fGap2Active + fNECLayers*GetECScintThick()+(fNECLayers-1)*GetECPbRadThick();
223 if(fGeoName.Contains("SHISH")) {
224 fShellThickness = fSteelFrontThick + fLongModuleSize;
225 if(fGeoName.Contains("TWIST")) { // 13-sep-04
226 fShellThickness = TMath::Sqrt(fLongModuleSize*fLongModuleSize + fPhiModuleSize*fEtaModuleSize);
227 fShellThickness += fSteelFrontThick;
228 } else if(fGeoName.Contains("TRD")) { // 1-oct-04
229 fShellThickness = TMath::Sqrt(fLongModuleSize*fLongModuleSize + f2Trd1Dx2*f2Trd1Dx2);
230 fShellThickness += fSteelFrontThick;
232 fParSM[0] = GetShellThickness()/2.;
233 fParSM[1] = GetPhiModuleSize() * GetNPhi()/2.;
238 fZLength = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage
239 fEnvelop[0] = fIPDistance; // mother volume inner radius
240 fEnvelop[1] = fIPDistance + fShellThickness; // mother volume outer r.
241 fEnvelop[2] = 1.00001*fZLength; // add some padding for mother volume.
243 if(fgAlignData != NULL) {
244 // Number of modules is read from Alignment DB if exists
245 fNumberOfSuperModules = fgAlignData->GetNSuperModules();
250 if (AliDebugLevel()>=2) {
251 printf("Init: geometry of EMCAL named %s is as follows:\n", fGeoName.Data());
252 printf( " ECAL : %d x (%f cm Pb, %f cm Sc) \n",
253 GetNECLayers(), GetECPbRadThick(), GetECScintThick() ) ;
254 printf(" fSampling %5.2f \n", fSampling );
255 if(fGeoName.Contains("SHISH")){
256 printf(" fIPDistance %6.3f cm \n", fIPDistance);
257 if(fSteelFrontThick>0.)
258 printf(" fSteelFrontThick %6.3f cm \n", fSteelFrontThick);
259 printf(" fNPhi %i | fNZ %i \n", fNPhi, fNZ);
260 printf(" fNCellsInTower %i : fNCellsInSupMod %i : fNCells %i\n",fNCellsInTower, fNCellsInSupMod, fNCells);
261 if(fGeoName.Contains("MAY05")){
262 printf(" fFrontSteelStrip %6.4f cm (thickness of front steel strip)\n",
264 printf(" fLateralSteelStrip %6.4f cm (thickness of lateral steel strip)\n",
266 printf(" fPassiveScintThick %6.4f cm (thickness of front passive Sc tile)\n",
269 printf(" X:Y module size %6.3f , %6.3f cm \n", fPhiModuleSize, fEtaModuleSize);
270 printf(" X:Y tile size %6.3f , %6.3f cm \n", fPhiTileSize, fEtaTileSize);
271 printf(" #of sampling layers %i(fNECLayers) \n", fNECLayers);
272 printf(" fLongModuleSize %6.3f cm \n", fLongModuleSize);
273 printf(" #supermodule in phi direction %i \n", fNPhiSuperModule );
275 if(fGeoName.Contains("TRD")) {
276 printf(" fTrd1Angle %7.4f\n", fTrd1Angle);
277 printf(" f2Trd1Dx2 %7.4f\n", f2Trd1Dx2);
278 if(fGeoName.Contains("TRD2")) {
279 printf(" fTrd2AngleY %7.4f\n", fTrd2AngleY);
280 printf(" f2Trd2Dy2 %7.4f\n", f2Trd2Dy2);
281 printf(" fTubsR %7.2f cm\n", fTubsR);
282 printf(" fTubsTurnAngle %7.4f\n", fTubsTurnAngle);
283 printf(" fEmptySpace %7.4f cm\n", fEmptySpace);
284 } else if(fGeoName.Contains("TRD1") && fGeoName.Contains("FINAL")){
285 printf("SM dimensions(TRD1) : dx %7.2f dy %7.2f dz %7.2f (SMOD, BOX)\n",
286 fParSM[0],fParSM[1],fParSM[2]);
287 printf(" fPhiGapForSM %7.4f cm \n", fPhiGapForSM);
288 if(fGeoName.Contains("110DEG"))printf(" Last two modules have size 10 degree in phi (180<phi<190)\n");
291 printf("Granularity: %d in eta and %d in phi\n", GetNZ(), GetNPhi()) ;
292 printf("Layout: phi = (%7.1f, %7.1f), eta = (%5.2f, %5.2f), IP = %7.2f\n",
293 GetArm1PhiMin(), GetArm1PhiMax(),GetArm1EtaMin(), GetArm1EtaMax(), GetIPDistance() );
295 //TRU parameters. These parameters values are not the final ones.
301 //______________________________________________________________________
303 void AliEMCALGeometry::CheckAdditionalOptions()
306 //Additional options that
307 //can be used to select
308 //the specific geometry of
311 fArrayOpts = new TObjArray;
312 Int_t nopt = AliEMCALHistoUtilities::ParseString(fGeoName, *fArrayOpts);
313 if(nopt==1) { // no aditional option(s)
314 fArrayOpts->Delete();
319 for(Int_t i=1; i<nopt; i++){
320 TObjString *o = (TObjString*)fArrayOpts->At(i);
322 TString addOpt = o->String();
324 for(Int_t j=0; j<fNAdditionalOpts; j++) {
325 TString opt = fAdditionalOpts[j];
326 if(addOpt.Contains(opt,TString::kIgnoreCase)) {
332 AliDebug(2,Form("<E> option |%s| unavailable : ** look to the file AliEMCALGeometry.h **\n",
336 AliDebug(2,Form("<I> option |%s| is valid : number %i : |%s|\n",
337 addOpt.Data(), indj, fAdditionalOpts[indj]));
338 if (addOpt.Contains("NL=",TString::kIgnoreCase)) {// number of sampling layers
339 sscanf(addOpt.Data(),"NL=%i", &fNECLayers);
340 AliDebug(2,Form(" fNECLayers %i (new) \n", fNECLayers));
341 } else if(addOpt.Contains("PBTH=",TString::kIgnoreCase)) {//Thickness of the Pb(fECPbRadThicknes)
342 sscanf(addOpt.Data(),"PBTH=%f", &fECPbRadThickness);
343 } else if(addOpt.Contains("SCTH=",TString::kIgnoreCase)) {//Thickness of the Sc(fECScintThick)
344 sscanf(addOpt.Data(),"SCTH=%f", &fECScintThick);
345 } else if(addOpt.Contains("LATSS=",TString::kIgnoreCase)) {// Thickness of lateral steel strip (fLateralSteelStrip)
346 sscanf(addOpt.Data(),"LATSS=%f", &fLateralSteelStrip);
347 AliDebug(2,Form(" fLateralSteelStrip %f (new) \n", fLateralSteelStrip));
353 //____________________________________________________________________________
354 void AliEMCALGeometry::FillTRU(const TClonesArray * digits, TClonesArray * ampmatrix, TClonesArray * timeRmatrix) {
357 // Orders digits ampitudes list in fNTRU TRUs (384 cells) per supermodule.
358 // Each TRU is a TMatrixD, and they are kept in TClonesArrays. The number of
359 // TRU in phi is fNTRUPhi, and the number of TRU in eta is fNTRUEta.
360 // Last 2 modules are half size in Phi, I considered that the number of TRU
361 // is maintained for the last modules but decision not taken. If different,
362 // then this must be changed.
367 if(fNTRUEta*fNTRUPhi != fNTRU)
368 Error("FillTRU"," Wrong number of TRUS per Eta or Phi");
370 //Initilize and declare variables
371 //List of TRU matrices initialized to 0.
372 Int_t nCellsPhi = fNPhi*2/fNTRUPhi;
373 Int_t nCellsPhi2 = fNPhi/fNTRUPhi; //HalfSize modules
374 Int_t nCellsEta = fNZ*2/fNTRUEta;
385 //List of TRU matrices initialized to 0.
386 for(Int_t k = 0; k < fNTRU*fNumberOfSuperModules; k++){
387 TMatrixD * amptrus = new TMatrixD(nCellsPhi,nCellsEta) ;
388 TMatrixD * timeRtrus = new TMatrixD(nCellsPhi,nCellsEta) ;
389 for(Int_t i = 0; i < nCellsPhi; i++){
390 for(Int_t j = 0; j < nCellsEta; j++){
391 (*amptrus)(i,j) = 0.0;
392 (*timeRtrus)(i,j) = 0.0;
395 new((*ampmatrix)[k]) TMatrixD(*amptrus) ;
396 new((*timeRmatrix)[k]) TMatrixD(*timeRtrus) ;
399 AliEMCALDigit * dig ;
401 //Digits loop to fill TRU matrices with amplitudes.
402 for(Int_t idig = 0 ; idig < digits->GetEntriesFast() ; idig++){
404 dig = dynamic_cast<AliEMCALDigit *>(digits->At(idig)) ;
405 amp = dig->GetAmp() ; // Energy of the digit (arbitrary units)
406 id = dig->GetId() ; // Id label of the cell
407 timeR = dig->GetTimeR() ; // Earliest time of the digit
409 //Get eta and phi cell position in supermodule
410 Bool_t bCell = GetCellIndex(id, iSupMod, nTower, nIphi, nIeta) ;
412 Error("FillTRU","Wrong cell id number") ;
414 GetCellPhiEtaIndexInSModule(iSupMod,nTower,nIphi, nIeta,iphi,ieta);
416 //Check to which TRU in the supermodule belongs the cell.
417 //Supermodules are divided in a TRU matrix of dimension
418 //(fNTRUPhi,fNTRUEta).
419 //Each TRU is a cell matrix of dimension (nCellsPhi,nCellsEta)
421 //First calculate the row and column in the supermodule
422 //of the TRU to which the cell belongs.
423 Int_t col = (ieta-1)/nCellsEta+1;
424 Int_t row = (iphi-1)/nCellsPhi+1;
426 row = (iphi-1)/nCellsPhi2+1;
427 //Calculate label number of the TRU
428 Int_t itru = (row-1) + (col-1)*fNTRUPhi + (iSupMod-1)*fNTRU ;
430 //Fill TRU matrix with cell values
431 TMatrixD * amptrus = dynamic_cast<TMatrixD *>(ampmatrix->At(itru)) ;
432 TMatrixD * timeRtrus = dynamic_cast<TMatrixD *>(timeRmatrix->At(itru)) ;
434 //Calculate row and column of the cell inside the TRU with number itru
435 Int_t irow = (iphi-1) - (row-1) * nCellsPhi;
437 irow = (iphi-1) - (row-1) * nCellsPhi2;
438 Int_t icol = (ieta-1) - (col-1) * nCellsEta;
440 (*amptrus)(irow,icol) = amp ;
441 (*timeRtrus)(irow,icol) = timeR ;
446 //______________________________________________________________________
447 void AliEMCALGeometry::GetCellPhiEtaIndexInSModuleFromTRUIndex(const Int_t itru, const Int_t iphitru, const Int_t ietatru, Int_t &iphiSM, Int_t &ietaSM) const
450 // This method transforms the (eta,phi) index of a cells in a
451 // TRU matrix into Super Module (eta,phi) index.
453 // Calculate in which row and column in which the TRU are
456 Int_t col = itru/ fNTRUPhi + 1;
457 Int_t row = itru - (col-1)*fNTRUPhi + 1;
459 //Calculate the (eta,phi) index in SM
460 Int_t nCellsPhi = fNPhi*2/fNTRUPhi;
461 Int_t nCellsEta = fNZ*2/fNTRUEta;
463 iphiSM = nCellsPhi*(row-1) + iphitru + 1 ;
464 ietaSM = nCellsEta*(col-1) + ietatru + 1 ;
467 //______________________________________________________________________
468 AliEMCALGeometry * AliEMCALGeometry::GetInstance(){
469 // Returns the pointer of the unique instance
471 AliEMCALGeometry * rv = static_cast<AliEMCALGeometry *>( fgGeom );
475 //______________________________________________________________________
476 AliEMCALGeometry* AliEMCALGeometry::GetInstance(const Text_t* name,
477 const Text_t* title){
478 // Returns the pointer of the unique instance
480 AliEMCALGeometry * rv = 0;
482 if ( strcmp(name,"") == 0 ) rv = 0;
484 fgGeom = new AliEMCALGeometry(name, title);
485 if ( fgInit ) rv = (AliEMCALGeometry * ) fgGeom;
491 } // end if strcmp(name,"")
493 if ( strcmp(fgGeom->GetName(), name) != 0) {
494 printf("\ncurrent geometry is %s : ", fgGeom->GetName());
495 printf(" you cannot call %s ", name);
497 rv = (AliEMCALGeometry *) fgGeom;
503 // These methods are obsolete but use in AliEMCALRecPoint - keep it now
504 //______________________________________________________________________
505 Int_t AliEMCALGeometry::TowerIndex(Int_t ieta,Int_t iphi) const {
506 // Returns the tower index number from the based on the Z and Phi
509 // Int_t ieta // index along z axis [1-fNZ]
510 // Int_t iphi // index along phi axis [1-fNPhi]
514 // Int_t index // Tower index number
516 if ( (ieta <= 0 || ieta>GetNEta()) ||
517 (iphi <= 0 || iphi>GetNPhi())) {
518 Error("TowerIndex", "Unexpected parameters eta = %d phi = %d!", ieta, iphi) ;
521 return ( (iphi - 1)*GetNEta() + ieta );
524 //______________________________________________________________________
525 void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &ieta,Int_t &iphi) const {
527 // Int_t index // Tower index number [1-fNZ*fNPhi]
529 // Int_t ieta // index allong z axis [1-fNZ]
530 // Int_t iphi // index allong phi axis [1-fNPhi]
536 if ( IsInECA(index) ) { // ECAL index
540 Error("TowerIndexes", "Unexpected Id number!") ;
547 iphi = nindex / GetNZ() + 1 ;
549 iphi = nindex / GetNZ() ;
550 ieta = nindex - (iphi - 1) * GetNZ() ;
552 AliDebug(2,Form("TowerIndexes: index=%d,%d, ieta=%d, iphi = %d", index, nindex,ieta, iphi));
557 //______________________________________________________________________
558 void AliEMCALGeometry::EtaPhiFromIndex(Int_t index,Float_t &eta,Float_t &phi) const {
559 // given the tower index number it returns the based on the eta and phi
562 // Int_t index // Tower index number [1-fNZ*fNPhi]
564 // Float_t eta // eta of center of tower in pseudorapidity
565 // Float_t phi // phi of center of tower in degrees
571 TowerIndexes(index,ieta,iphi);
573 AliDebug(2,Form("EtaPhiFromIndex: index = %d, ieta = %d, iphi = %d", index, ieta, iphi));
575 deta = (GetArm1EtaMax()-GetArm1EtaMin())/(static_cast<Float_t>(GetNEta()));
576 eta = GetArm1EtaMin() + ((static_cast<Float_t>(ieta) - 0.5 ))*deta;
578 dphi = (GetArm1PhiMax() - GetArm1PhiMin())/(static_cast<Float_t>(GetNPhi())); // in degrees.
579 phi = GetArm1PhiMin() + dphi*(static_cast<Float_t>(iphi) - 0.5);//iphi range [1-fNphi].
582 //______________________________________________________________________
583 Int_t AliEMCALGeometry::TowerIndexFromEtaPhi(Float_t eta,Float_t phi) const {
584 // returns the tower index number based on the eta and phi of the tower.
586 // Float_t eta // eta of center of tower in pseudorapidity
587 // Float_t phi // phi of center of tower in degrees
591 // Int_t index // Tower index number [1-fNZ*fNPhi]
595 ieta = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNEta()) * (eta - GetArm1EtaMin()) / (GetArm1EtaMax() - GetArm1EtaMin())) ) ;
597 if( ieta <= 0 || ieta > GetNEta() ) {
598 Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ;
602 iphi = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNPhi()) * (phi - GetArm1PhiMin()) / (GetArm1PhiMax() - GetArm1PhiMin())) ) ;
604 if( iphi <= 0 || iphi > GetNPhi() ) {
605 Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ;
609 return TowerIndex(ieta,iphi);
612 //______________________________________________________________________
613 Bool_t AliEMCALGeometry::AbsToRelNumbering(Int_t AbsId, Int_t *relid) const {
614 // Converts the absolute numbering into the following array/
615 // relid[0] = Row number inside EMCAL
616 // relid[1] = Column number inside EMCAL
618 // Int_t AbsId // Tower index number [1-2*fNZ*fNPhi]
620 // Int_t *relid // array of 2. Described above.
622 Int_t ieta=0,iphi=0,index=AbsId;
624 TowerIndexes(index,ieta,iphi);
631 //______________________________________________________________________
632 void AliEMCALGeometry::PosInAlice(const Int_t *relid, Float_t &theta, Float_t &phi) const
634 // Converts the relative numbering into the local EMCAL-module (x, z)
636 Int_t ieta = relid[0]; // offset along x axis
637 Int_t iphi = relid[1]; // offset along z axis
641 index = TowerIndex(ieta,iphi);
642 EtaPhiFromIndex(index,eta,phi);
643 //theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
644 theta = 2.0*TMath::ATan(TMath::Exp(-eta));
646 // correct for distance to IP
647 Float_t d = GetIP2ECASection() - GetIPDistance() ;
649 Float_t correction = 1 + d/GetIPDistance() ;
650 Float_t tantheta = TMath::Tan(theta) * correction ;
651 theta = TMath::ATan(tantheta) * TMath::RadToDeg() ;
658 //______________________________________________________________________
659 void AliEMCALGeometry::PosInAlice(Int_t absid, Float_t &theta, Float_t &phi) const
661 // Converts the relative numbering into the local EMCAL-module (x, z)
664 AbsToRelNumbering(absid, relid) ;
665 Int_t ieta = relid[0]; // offset along x axis
666 Int_t iphi = relid[1]; // offset along z axis
670 index = TowerIndex(ieta,iphi);
671 EtaPhiFromIndex(index,eta,phi);
672 theta = 2.0*TMath::ATan(TMath::Exp(-eta)) ;
674 // correct for distance to IP
677 d = GetIP2ECASection() - GetIPDistance() ;
679 Error("PosInAlice", "Unexpected id # %d!", absid) ;
683 Float_t correction = 1 + d/GetIPDistance() ;
684 Float_t tantheta = TMath::Tan(theta) * correction ;
685 theta = TMath::ATan(tantheta) * TMath::RadToDeg() ;
692 //______________________________________________________________________
693 void AliEMCALGeometry::XYZFromIndex(const Int_t *relid,Float_t &x,Float_t &y, Float_t &z) const {
694 // given the tower relative number it returns the X, Y and Z
698 // Float_t x // x of center of tower in cm
699 // Float_t y // y of center of tower in cm
700 // Float_t z // z of centre of tower in cm
704 Float_t eta,theta, phi,cylradius=0. ;
706 Int_t ieta = relid[0]; // offset along x axis
707 Int_t iphi = relid[1]; // offset along z axis.
710 index = TowerIndex(ieta,iphi);
711 EtaPhiFromIndex(index,eta,phi);
712 theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi();
714 cylradius = GetIP2ECASection() ;
716 Double_t kDeg2Rad = TMath::DegToRad() ;
717 x = cylradius * TMath::Cos(phi * kDeg2Rad ) ;
718 y = cylradius * TMath::Sin(phi * kDeg2Rad ) ;
719 z = cylradius / TMath::Tan(theta * kDeg2Rad ) ;
724 //______________________________________________________________________
725 void AliEMCALGeometry::XYZFromIndex(Int_t absid, TVector3 &v) const {
726 // given the tower relative number it returns the X, Y and Z
730 // Float_t x // x of center of tower in cm
731 // Float_t y // y of center of tower in cm
732 // Float_t z // z of centre of tower in cm
736 Float_t theta, phi,cylradius=0. ;
738 PosInAlice(absid, theta, phi) ;
740 if ( IsInECA(absid) )
741 cylradius = GetIP2ECASection() ;
743 Error("XYZFromIndex", "Unexpected Tower section") ;
747 Double_t kDeg2Rad = TMath::DegToRad() ;
748 v.SetX(cylradius * TMath::Cos(phi * kDeg2Rad ) );
749 v.SetY(cylradius * TMath::Sin(phi * kDeg2Rad ) );
750 v.SetZ(cylradius / TMath::Tan(theta * kDeg2Rad ) ) ;
755 Bool_t AliEMCALGeometry::IsInEMCAL(Double_t x, Double_t y, Double_t z) const {
756 // Checks whether point is inside the EMCal volume
758 // Code uses cylindrical approximation made of inner radius (for speed)
760 // Points behind EMCAl, i.e. R > outer radius, but eta, phi in acceptance
761 // are considered to inside
763 Double_t r=sqrt(x*x+y*y);
765 if ( r > fEnvelop[0] ) {
767 theta = TMath::ATan2(r,z);
772 eta = -TMath::Log(TMath::Tan(theta/2.));
773 if (eta < fArm1EtaMin || eta > fArm1EtaMax)
776 Double_t phi = TMath::ATan2(y,x) * 180./TMath::Pi();
777 if (phi > fArm1PhiMin && phi < fArm1PhiMax)
785 // == Shish-kebab cases ==
787 Int_t AliEMCALGeometry::GetAbsCellId(Int_t nSupMod, Int_t nTower, Int_t nIphi, Int_t nIeta) const
790 // 13-oct-05; 110 degree case
791 // 1 <= nSupMod <= fNumberOfSuperModules
792 // 1 <= nTower <= fNPHI * fNZ ( fNPHI * fNZ/2 for fKey110DEG=1)
793 // 1 <= nIphi <= fNPHIdiv
794 // 1 <= nIeta <= fNETAdiv
795 // 1 <= absid <= fNCells
796 static Int_t id=0; // have to change from 1 to fNCells
797 if(fKey110DEG == 1 && nSupMod > 10) { // 110 degree case; last two supermodules
798 id = fNCellsInSupMod*10 + (fNCellsInSupMod/2)*(nSupMod-11);
800 id = fNCellsInSupMod*(nSupMod-1);
802 id += fNCellsInTower *(nTower-1);
803 id += fNPHIdiv *(nIphi-1);
805 if(id<=0 || id > fNCells) {
806 // printf(" wrong numerations !!\n");
807 // printf(" id %6i(will be force to -1)\n", id);
808 // printf(" fNCells %6i\n", fNCells);
809 // printf(" nSupMod %6i\n", nSupMod);
810 // printf(" nTower %6i\n", nTower);
811 // printf(" nIphi %6i\n", nIphi);
812 // printf(" nIeta %6i\n", nIeta);
813 id = -TMath::Abs(id);
818 Bool_t AliEMCALGeometry::CheckAbsCellId(Int_t ind) const
820 // 17-nov-04 - analog of IsInECA
821 if(fGeoName.Contains("TRD")) {
822 if(ind<=0 || ind > fNCells) return kFALSE;
824 } else return IsInECA(ind);
827 Bool_t AliEMCALGeometry::GetCellIndex(Int_t absId,Int_t &nSupMod,Int_t &nTower,Int_t &nIphi,Int_t &nIeta) const
831 static Int_t tmp=0, sm10=0;
832 if(absId<=0 || absId>fNCells) {
833 // Info("GetCellIndex"," wrong abs Id %i !! \n", absId);
836 sm10 = fNCellsInSupMod*10;
837 if(fKey110DEG == 1 && absId > sm10) { // 110 degree case; last two supermodules
838 nSupMod = (absId-1-sm10) / (fNCellsInSupMod/2) + 11;
839 tmp = (absId-1-sm10) % (fNCellsInSupMod/2);
841 nSupMod = (absId-1) / fNCellsInSupMod + 1;
842 tmp = (absId-1) % fNCellsInSupMod;
845 nTower = tmp / fNCellsInTower + 1;
846 tmp = tmp % fNCellsInTower;
847 nIphi = tmp / fNPHIdiv + 1;
848 nIeta = tmp % fNPHIdiv + 1;
853 void AliEMCALGeometry::GetTowerPhiEtaIndexInSModule(Int_t nSupMod, Int_t nTower, int &iphit, int &ietat) const
855 // added nSupMod; have to check - 19-oct-05 !
858 if(fKey110DEG == 1 && nSupMod>=11) nphi = fNPhi/2;
861 ietat = (nTower-1)/nphi + 1; // have to change from 1 to fNZ
862 iphit = (nTower-1)%nphi + 1; // have to change from 1 to fNPhi
865 void AliEMCALGeometry::GetCellPhiEtaIndexInSModule(Int_t nSupMod, Int_t nTower, Int_t nIphi, Int_t nIeta,
866 int &iphi, int &ieta) const
868 // added nSupMod; Nov 25, 05
869 static Int_t iphit, ietat;
871 GetTowerPhiEtaIndexInSModule(nSupMod,nTower, iphit, ietat);
872 // have to change from 1 to fNZ*fNETAdiv
873 ieta = (ietat-1)*fNETAdiv + (3-nIeta); // x(module) = -z(SM)
874 // iphi - have to change from 1 to fNPhi*fNPHIdiv
875 iphi = (iphit-1)*fNPHIdiv + nIphi; // y(module) = y(SM)
878 Int_t AliEMCALGeometry::GetSuperModuleNumber(Int_t absId) const
880 //return the number of the
881 //supermodule given the absolute
884 static Int_t nSupMod, nTower, nIphi, nIeta;
885 GetCellIndex(absId, nSupMod, nTower, nIphi, nIeta);
889 // Methods for AliEMCALRecPoint - Feb 19, 2006
890 Bool_t AliEMCALGeometry::RelPosCellInSModule(Int_t absId, Double_t &xr, Double_t &yr, Double_t &zr)
892 //Look to see what the relative
893 //position inside a given cell is
896 static Int_t nSupMod, nTower, nIphi, nIeta, iphi, ieta;
897 if(!CheckAbsCellId(absId)) return kFALSE;
899 GetCellIndex(absId, nSupMod, nTower, nIphi, nIeta);
900 GetCellPhiEtaIndexInSModule(nSupMod,nTower,nIphi,nIeta, iphi, ieta);
902 xr = fXCentersOfCells->At(ieta-1);
903 zr = fEtaCentersOfCells->At(ieta-1);
905 yr = fPhiCentersOfCells->At(iphi-1);
907 // cout<<" absId "<<absId<<" iphi "<<iphi<<"ieta"<<ieta;
908 // cout<< " xr " << xr << " yr " << yr << " zr " << zr <<endl;
912 void AliEMCALGeometry::CreateListOfTrd1Modules()
914 //Generate the list of Trd1 modules
915 //which will make up the EMCAL
918 AliDebug(2,Form(" AliEMCALGeometry::CreateListOfTrd1Modules() started "));
920 AliEMCALShishKebabTrd1Module *mod=0, *mTmp=0; // current module
921 if(fShishKebabTrd1Modules == 0) {
922 fShishKebabTrd1Modules = new TList;
923 for(int iz=0; iz< GetNZ(); iz++) {
925 mod = new AliEMCALShishKebabTrd1Module(TMath::Pi()/2.,this);
927 mTmp = new AliEMCALShishKebabTrd1Module(*mod);
930 fShishKebabTrd1Modules->Add(mod);
933 AliDebug(2,Form(" Already exits : "));
935 AliDebug(2,Form(" fShishKebabTrd1Modules has %i modules \n",
936 fShishKebabTrd1Modules->GetSize()));
938 // define grid for cells in eta(z) and x directions in local coordinates system of SM
939 fEtaCentersOfCells = new TArrayD(fNZ *fNETAdiv);
940 fXCentersOfCells = new TArrayD(fNZ *fNETAdiv);
941 AliDebug(2,Form(" Cells grid in eta directions : size %i\n", fEtaCentersOfCells->GetSize()));
942 Int_t iphi=0, ieta=0, nTower=0;
944 for(Int_t it=0; it<fNZ; it++) { // array index
945 AliEMCALShishKebabTrd1Module *trd1 = GetShishKebabModule(it);
946 nTower = fNPhi*it + 1;
947 for(Int_t ic=0; ic<fNETAdiv; ic++) { // array index
948 trd1->GetCenterOfCellInLocalCoordinateofSM(ic+1, xr, zr);
949 GetCellPhiEtaIndexInSModule(1, nTower, 1, ic+1, iphi, ieta); // don't depend from phi
950 fXCentersOfCells->AddAt(float(xr) - fParSM[0],ieta-1);
951 fEtaCentersOfCells->AddAt(float(zr) - fParSM[2],ieta-1);
954 for(Int_t i=0; i<fEtaCentersOfCells->GetSize(); i++) {
955 AliDebug(2,Form(" ind %2.2i : z %8.3f : x %8.3f", i+1,
956 fEtaCentersOfCells->At(i),fXCentersOfCells->At(i)));
959 // define grid for cells in phi(y) direction in local coordinates system of SM
960 fPhiCentersOfCells = new TArrayD(fNPhi*fNPHIdiv);
961 AliDebug(2,Form(" Cells grid in phi directions : size %i\n", fPhiCentersOfCells->GetSize()));
963 for(Int_t it=0; it<fNPhi; it++) { // array index
964 Float_t ytLeftCenterModule = -fParSM[1] + fPhiModuleSize*(2*it+1)/2; // module
965 for(Int_t ic=0; ic<fNPHIdiv; ic++) { // array index
966 Float_t ytLeftCenterCell = ytLeftCenterModule + fPhiTileSize *(2*ic-1)/2.; // tower(cell)
967 fPhiCentersOfCells->AddAt(ytLeftCenterCell,ind);
968 AliDebug(2,Form(" ind %2.2i : y %8.3f ", ind, fPhiCentersOfCells->At(ind)));
974 void AliEMCALGeometry::GetTransformationForSM()
976 //Uses the geometry manager to
977 //load the transformation matrix
978 //for the supermodules
980 static Bool_t transInit=kFALSE;
981 if(transInit) return;
984 if(gGeoManager == 0) {
985 Info("CreateTransformationForSM() "," Load geometry : TGeoManager::Import()");
988 TGeoNode *tn = gGeoManager->GetTopNode();
989 TGeoNode *node=0, *xen1 = 0;
990 for(i=0; i<tn->GetNdaughters(); i++) {
991 node = tn->GetDaughter(i);
992 TString ns(node->GetName());
993 if(ns.Contains(GetNameOfEMCALEnvelope())) {
999 Info("CreateTransformationForSM() "," geometry has not EMCAL envelope with name %s",
1000 GetNameOfEMCALEnvelope());
1003 printf(" i %i : EMCAL Envelope is %s : #SM %i \n", i, xen1->GetName(), xen1->GetNdaughters());
1004 for(i=0; i<xen1->GetNdaughters(); i++) {
1005 TGeoNodeMatrix *sm = (TGeoNodeMatrix*)xen1->GetDaughter(i);
1006 fMatrixOfSM[i] = sm->GetMatrix();
1007 //Compiler doesn't like this syntax...
1008 // printf(" %i : matrix %x \n", i, fMatrixOfSM[i]);
1013 void AliEMCALGeometry::GetGlobal(const Double_t *loc, Double_t *glob, int nsm) const
1015 //Figure out the global numbering
1016 //of a given supermodule from the
1019 // if(fMatrixOfSM[0] == 0) GetTransformationForSM();
1022 if(ind>=0 && ind < GetNumberOfSuperModules()) {
1023 fMatrixOfSM[ind]->LocalToMaster(loc, glob);
1027 void AliEMCALGeometry::GetGlobal(Int_t /* absId */, TVector3 & /* vglob */) const
1028 { // have to be defined
1031 void AliEMCALGeometry::GetGlobal(const TVector3 &vloc, TVector3 &vglob, int nsm) const
1033 //Figure out the global numbering
1034 //of a given supermodule from the
1035 //local numbering given a 3-vector location
1037 static Double_t tglob[3], tloc[3];
1039 GetGlobal(tloc, tglob, nsm);
1040 vglob.SetXYZ(tglob[0], tglob[1], tglob[2]);
1043 void AliEMCALGeometry::GetGlobal(const AliRecPoint *rp, TVector3 &vglob) const
1045 //Figure out the global numbering
1046 //of a given supermodule from the
1047 //local numbering for RecPoints
1049 static TVector3 vloc;
1050 static Int_t nSupMod, nTower, nIphi, nIeta;
1052 AliRecPoint *rpTmp = (AliRecPoint*)rp; // const_cast ??
1054 AliEMCALRecPoint *rpEmc = (AliEMCALRecPoint*)rpTmp;
1056 GetCellIndex(rpEmc->GetAbsId(0), nSupMod, nTower, nIphi, nIeta);
1057 rpTmp->GetLocalPosition(vloc);
1058 GetGlobal(vloc, vglob, nSupMod);
1061 AliEMCALShishKebabTrd1Module* AliEMCALGeometry::GetShishKebabModule(Int_t neta=0)
1063 //This method was too long to be
1064 //included in the header file - the
1065 //rule checker complained about it's
1066 //length, so we move it here. It returns the
1067 //shishkebabmodule at a given eta index point.
1069 static AliEMCALShishKebabTrd1Module* trd1=0;
1070 if(fShishKebabTrd1Modules && neta>=0 && neta<fShishKebabTrd1Modules->GetSize()) {
1071 trd1 = (AliEMCALShishKebabTrd1Module*)fShishKebabTrd1Modules->At(neta);