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2012850d | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
16 | /* $Id$*/ | |
17 | ||
18 | //_________________________________________________________________________ | |
19 | // Geometry class for EMCAL : singleton | |
b13bbe81 | 20 | // EMCAL consists of layers of scintillator and lead |
ffa6d63b | 21 | // Places the the Barrel Geometry of The EMCAL at Midrapidity |
d87bd045 | 22 | // between 80 and 180(or 190) degrees of Phi and |
ffa6d63b | 23 | // -0.7 to 0.7 in eta |
24 | // Number of Modules and Layers may be controlled by | |
25 | // the name of the instance defined | |
b13bbe81 | 26 | //*-- Author: Sahal Yacoob (LBL / UCT) |
27 | // and : Yves Schutz (SUBATECH) | |
28 | // and : Jennifer Klay (LBL) | |
1963b290 | 29 | // SHASHLYK : Aleksei Pavlinov (WSU) |
2012850d | 30 | |
2012850d | 31 | // --- AliRoot header files --- |
ca8f5bd0 | 32 | #include <TMath.h> |
116cbefd | 33 | #include <TVector3.h> |
173558f2 | 34 | |
ca8f5bd0 | 35 | // -- ALICE Headers. |
d64c959b | 36 | //#include "AliConst.h" |
173558f2 | 37 | |
ca8f5bd0 | 38 | // --- EMCAL headers |
39 | #include "AliEMCALGeometry.h" | |
2012850d | 40 | |
925e6570 | 41 | ClassImp(AliEMCALGeometry) |
2012850d | 42 | |
b13bbe81 | 43 | AliEMCALGeometry *AliEMCALGeometry::fgGeom = 0; |
44 | Bool_t AliEMCALGeometry::fgInit = kFALSE; | |
1963b290 | 45 | TString name; // contains name of geometry |
2012850d | 46 | |
b13bbe81 | 47 | //______________________________________________________________________ |
48 | AliEMCALGeometry::~AliEMCALGeometry(void){ | |
49 | // dtor | |
2012850d | 50 | } |
b13bbe81 | 51 | |
395c7ba2 | 52 | //______________________________________________________________________ |
09884213 | 53 | Bool_t AliEMCALGeometry::AreInSameTower(Int_t id1, Int_t id2) const { |
fdebddeb | 54 | // Find out whether two hits are in the same tower |
395c7ba2 | 55 | Int_t idmax = TMath::Max(id1, id2) ; |
56 | Int_t idmin = TMath::Min(id1, id2) ; | |
57 | if ( ((idmax - GetNZ() * GetNPhi()) == idmin ) || | |
58 | ((idmax - 2 * GetNZ() * GetNPhi()) == idmin ) ) | |
59 | return kTRUE ; | |
60 | else | |
61 | return kFALSE ; | |
62 | } | |
05a92d59 | 63 | |
395c7ba2 | 64 | //______________________________________________________________________ |
65 | void AliEMCALGeometry::Init(void){ | |
66 | // Initializes the EMCAL parameters | |
fdebddeb | 67 | // naming convention : GUV_WX_N_ gives the composition of a tower |
395c7ba2 | 68 | // WX inform about the composition of the EM calorimeter section: |
fdebddeb | 69 | // thickness in mm of Pb radiator (W) and of scintillator (X), and number of scintillator layers (N) |
70 | // New geometry: EMCAL_55_25 | |
1963b290 | 71 | // 24-aug-04 for shish-kebab |
72 | // SHISH_25 or SHISH_62 | |
d87bd045 | 73 | // 11-oct-05 - correction for final design |
fdebddeb | 74 | fgInit = kFALSE; // Assume failed until proven otherwise. |
1963b290 | 75 | name = GetName(); |
d87bd045 | 76 | name.ToUpper(); |
77 | fKey110DEG = 0; | |
78 | if(name.Contains("110DEG")) fKey110DEG = 1; // for GetAbsCellId | |
1963b290 | 79 | |
80 | fNZ = 114; // granularity along Z (eta) | |
81 | fNPhi = 168; // granularity in phi (azimuth) | |
82 | fArm1PhiMin = 60.0; // degrees, Starting EMCAL Phi position | |
83 | fArm1PhiMax = 180.0; // degrees, Ending EMCAL Phi position | |
84 | fArm1EtaMin = -0.7; // pseudorapidity, Starting EMCAL Eta position | |
85 | fArm1EtaMax = +0.7; // pseudorapidity, Ending EMCAL Eta position | |
86 | fIPDistance = 454.0; // cm, Radial distance to inner surface of EMCAL | |
905263da | 87 | fPhiGapForSM = 0.; // cm, only for final TRD1 geometry |
1963b290 | 88 | |
89 | // geometry | |
fdebddeb | 90 | if (name == "EMCAL_55_25") { |
91 | fECPbRadThickness = 0.5; // cm, Thickness of the Pb radiators | |
92 | fECScintThick = 0.5; // cm, Thickness of the scintillator | |
93 | fNECLayers = 25; // number of scintillator layers | |
395c7ba2 | 94 | |
57c473a6 | 95 | fSampling = 13.1; // calculated with Birk's law implementation |
395c7ba2 | 96 | |
fdebddeb | 97 | fAlFrontThick = 3.5; // cm, Thickness of front Al layer |
395c7ba2 | 98 | fGap2Active = 1.0; // cm, Gap between Al and 1st Scintillator |
99 | } | |
fdebddeb | 100 | else if( name == "G56_2_55_19" || name == "EMCAL_5655_21" || name == "G56_2_55_19_104_14"|| name == "G65_2_64_19" || name == "EMCAL_6564_21"){ |
101 | Fatal("Init", "%s is an old geometry! Please update your Config file", name.Data()) ; | |
395c7ba2 | 102 | } |
1963b290 | 103 | else if(name.Contains("SHISH")){ |
905263da | 104 | // 7-sep-05; integration issue |
105 | fArm1PhiMin = 80.0; // 60 -> 80 | |
106 | fArm1PhiMax = 180.0; // 180 -> 200 | |
107 | ||
108 | fNumberOfSuperModules = 10; // 12 = 6 * 2 (6 in phi, 2 in Z); | |
1963b290 | 109 | fSteelFrontThick = 2.54; // 9-sep-04 |
110 | fIPDistance = 460.0; | |
111 | fFrontSteelStrip = fPassiveScintThick = 0.0; // 13-may-05 | |
112 | fLateralSteelStrip = 0.025; // before MAY 2005 | |
113 | fPhiModuleSize = fEtaModuleSize = 11.4; | |
114 | fPhiTileSize = fEtaTileSize = 5.52; // (11.4-5.52*2)/2. = 0.18 cm (wall thickness) | |
115 | fNPhi = 14; | |
116 | fNZ = 30; | |
117 | fAlFrontThick = fGap2Active = 0; | |
118 | fNPHIdiv = fNETAdiv = 2; | |
119 | ||
120 | fNECLayers = 62; | |
121 | fECScintThick = fECPbRadThickness = 0.2; | |
122 | fSampling = 1.; // 30-aug-04 - should be calculated | |
123 | if(name.Contains("TWIST")) { // all about EMCAL module | |
124 | fNZ = 27; // 16-sep-04 | |
125 | } else if(name.Contains("TRD")) { | |
126 | fIPDistance = 428.0; // 11-may-05 | |
127 | fSteelFrontThick = 0.0; // 3.17 -> 0.0; 28-mar-05 : no stell plate | |
128 | fNPhi = 12; | |
129 | fSampling = 12.327; | |
130 | fPhiModuleSize = fEtaModuleSize = 12.26; | |
131 | fNZ = 26; // 11-oct-04 | |
132 | fTrd1Angle = 1.3; // in degree | |
133 | // 18-nov-04; 1./0.08112=12.327 | |
134 | // http://pdsfweb01.nersc.gov/~pavlinov/ALICE/SHISHKEBAB/RES/linearityAndResolutionForTRD1.html | |
135 | if(name.Contains("TRD1")) { // 30-jan-05 | |
136 | // for final design | |
905263da | 137 | fPhiGapForSM = 2.; // cm, only for final TRD1 geometry |
138 | if(name.Contains("MAY05") || name.Contains("WSUC") || name.Contains("FINAL")){ | |
1963b290 | 139 | fNumberOfSuperModules = 12; // 20-may-05 |
140 | if(name.Contains("WSUC")) fNumberOfSuperModules = 1; // 27-may-05 | |
141 | fNECLayers = 77; // (13-may-05 from V.Petrov) | |
142 | fPhiModuleSize = 12.5; // 20-may-05 - rectangular shape | |
143 | fEtaModuleSize = 11.9; | |
144 | fECScintThick = fECPbRadThickness = 0.16;// (13-may-05 from V.Petrov) | |
145 | fFrontSteelStrip = 0.025;// 0.025cm = 0.25mm (13-may-05 from V.Petrov) | |
146 | fLateralSteelStrip = 0.01; // 0.01cm = 0.1mm (13-may-05 from V.Petrov) - was 0.025 | |
147 | fPassiveScintThick = 0.8; // 0.8cm = 8mm (13-may-05 from V.Petrov) | |
148 | fNZ = 24; | |
149 | fTrd1Angle = 1.5; // 1.3 or 1.5 | |
905263da | 150 | |
151 | if(name.Contains("FINAL")) { // 9-sep-05 | |
152 | fNumberOfSuperModules = 10; | |
d87bd045 | 153 | if(name.Contains("110DEG")) { |
154 | fNumberOfSuperModules = 12;// last two modules have size 10 degree in phi (180<phi<190) | |
155 | fArm1PhiMax = 200.0; // for XEN1 and turn angle of super modules | |
156 | } | |
905263da | 157 | fPhiModuleSize = 12.26 - fPhiGapForSM / Float_t(fNPhi); // first assumption |
158 | fEtaModuleSize = fPhiModuleSize; | |
159 | } | |
1963b290 | 160 | } |
161 | } else if(name.Contains("TRD2")) { // 30-jan-05 | |
162 | fSteelFrontThick = 0.0; // 11-mar-05 | |
163 | fIPDistance+= fSteelFrontThick; // 1-feb-05 - compensate absence of steel plate | |
164 | fTrd1Angle = 1.64; // 1.3->1.64 | |
165 | fTrd2AngleY = fTrd1Angle; // symmetric case now | |
166 | fEmptySpace = 0.2; // 2 mm | |
167 | fTubsR = fIPDistance; // 31-jan-05 - as for Fred case | |
168 | ||
169 | fPhiModuleSize = fTubsR*2.*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.); | |
170 | fPhiModuleSize -= fEmptySpace/2.; // 11-mar-05 | |
171 | fEtaModuleSize = fPhiModuleSize; // 20-may-05 | |
172 | fTubsTurnAngle = 3.; | |
173 | } | |
174 | fNPHIdiv = fNETAdiv = 2; // 13-oct-04 - division again | |
175 | if(name.Contains("3X3")) { // 23-nov-04 | |
176 | fNPHIdiv = fNETAdiv = 3; | |
177 | } else if(name.Contains("4X4")) { | |
178 | fNPHIdiv = fNETAdiv = 4; | |
179 | } | |
180 | } | |
181 | fPhiTileSize = fPhiModuleSize/2. - fLateralSteelStrip; // 13-may-05 | |
182 | fEtaTileSize = fEtaModuleSize/2. - fLateralSteelStrip; // 13-may-05 | |
183 | ||
184 | if(name.Contains("25")){ | |
185 | fNECLayers = 25; | |
186 | fECScintThick = fECPbRadThickness = 0.5; | |
187 | } | |
188 | if(name.Contains("WSUC")){ // 18-may-05 - about common structure | |
189 | fShellThickness = 30.; // should be change | |
190 | fNPhi = fNZ = 4; | |
191 | } | |
192 | // constant for transition absid <--> indexes | |
193 | fNCellsInTower = fNPHIdiv*fNETAdiv; | |
194 | fNCellsInSupMod = fNCellsInTower*fNPhi*fNZ; | |
195 | fNCells = fNCellsInSupMod*fNumberOfSuperModules; | |
d87bd045 | 196 | if(name.Contains("110DEG")) fNCells -= fNCellsInSupMod; |
1963b290 | 197 | |
198 | fLongModuleSize = fNECLayers*(fECScintThick + fECPbRadThickness); | |
199 | if(name.Contains("MAY05")) fLongModuleSize += (fFrontSteelStrip + fPassiveScintThick); | |
200 | ||
201 | // 30-sep-04 | |
202 | if(name.Contains("TRD")) { | |
203 | f2Trd1Dx2 = fEtaModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd1Angle*TMath::DegToRad()/2.); | |
204 | if(name.Contains("TRD2")) { // 27-jan-05 | |
205 | f2Trd2Dy2 = fPhiModuleSize + 2.*fLongModuleSize*TMath::Tan(fTrd2AngleY*TMath::DegToRad()/2.); | |
206 | } | |
207 | } | |
208 | } | |
395c7ba2 | 209 | else |
210 | Fatal("Init", "%s is an undefined geometry!", name.Data()) ; | |
05a92d59 | 211 | |
fdebddeb | 212 | |
1963b290 | 213 | fNPhiSuperModule = fNumberOfSuperModules/2; |
214 | if(fNPhiSuperModule<1) fNPhiSuperModule = 1; | |
fdebddeb | 215 | //There is always one more scintillator than radiator layer because of the first block of aluminium |
216 | fShellThickness = fAlFrontThick + fGap2Active + fNECLayers*GetECScintThick()+(fNECLayers-1)*GetECPbRadThick(); | |
1963b290 | 217 | if(name.Contains("SHISH")) { |
218 | fShellThickness = fSteelFrontThick + fLongModuleSize; | |
219 | if(name.Contains("TWIST")) { // 13-sep-04 | |
220 | fShellThickness = TMath::Sqrt(fLongModuleSize*fLongModuleSize + fPhiModuleSize*fEtaModuleSize); | |
221 | fShellThickness += fSteelFrontThick; | |
222 | } else if(name.Contains("TRD")) { // 1-oct-04 | |
223 | fShellThickness = TMath::Sqrt(fLongModuleSize*fLongModuleSize + f2Trd1Dx2*f2Trd1Dx2); | |
224 | fShellThickness += fSteelFrontThick; | |
225 | } | |
226 | } | |
fdebddeb | 227 | |
395c7ba2 | 228 | fZLength = 2.*ZFromEtaR(fIPDistance+fShellThickness,fArm1EtaMax); // Z coverage |
229 | fEnvelop[0] = fIPDistance; // mother volume inner radius | |
230 | fEnvelop[1] = fIPDistance + fShellThickness; // mother volume outer r. | |
231 | fEnvelop[2] = 1.00001*fZLength; // add some padding for mother volume. | |
232 | ||
233 | fgInit = kTRUE; | |
234 | ||
1963b290 | 235 | if (kTRUE) { |
236 | printf("Init: geometry of EMCAL named %s is as follows:\n", name.Data()); | |
905263da | 237 | printf( " ECAL : %d x (%f cm Pb, %f cm Sc) \n", GetNECLayers(), GetECPbRadThick(), GetECScintThick() ) ; |
1963b290 | 238 | if(name.Contains("SHISH")){ |
239 | printf(" fIPDistance %6.3f cm \n", fIPDistance); | |
240 | if(fSteelFrontThick>0.) | |
241 | printf(" fSteelFrontThick %6.3f cm \n", fSteelFrontThick); | |
242 | printf(" fNPhi %i | fNZ %i \n", fNPhi, fNZ); | |
d87bd045 | 243 | printf(" fNCellsInTower %i : fNCellsInSupMod %i : fNCells %i\n",fNCellsInTower, fNCellsInSupMod, fNCells); |
1963b290 | 244 | if(name.Contains("MAY05")){ |
245 | printf(" fFrontSteelStrip %6.4f cm (thickness of front steel strip)\n", | |
246 | fFrontSteelStrip); | |
247 | printf(" fLateralSteelStrip %6.4f cm (thickness of lateral steel strip)\n", | |
248 | fLateralSteelStrip); | |
249 | printf(" fPassiveScintThick %6.4f cm (thickness of front passive Sc tile)\n", | |
250 | fPassiveScintThick); | |
251 | } | |
252 | printf(" X:Y module size %6.3f , %6.3f cm \n", fPhiModuleSize, fEtaModuleSize); | |
253 | printf(" X:Y tile size %6.3f , %6.3f cm \n", fPhiTileSize, fEtaTileSize); | |
254 | printf(" fLongModuleSize %6.3f cm \n", fLongModuleSize); | |
255 | printf(" #supermodule in phi direction %i \n", fNPhiSuperModule ); | |
256 | } | |
257 | if(name.Contains("TRD")) { | |
258 | printf(" fTrd1Angle %7.4f\n", fTrd1Angle); | |
259 | printf(" f2Trd1Dx2 %7.4f\n", f2Trd1Dx2); | |
260 | if(name.Contains("TRD2")) { | |
261 | printf(" fTrd2AngleY %7.4f\n", fTrd2AngleY); | |
262 | printf(" f2Trd2Dy2 %7.4f\n", f2Trd2Dy2); | |
905263da | 263 | printf(" fTubsR %7.2f cm\n", fTubsR); |
1963b290 | 264 | printf(" fTubsTurnAngle %7.4f\n", fTubsTurnAngle); |
905263da | 265 | printf(" fEmptySpace %7.4f cm\n", fEmptySpace); |
266 | } else if(name.Contains("TRD1") && name.Contains("FINAL")){ | |
267 | printf(" fPhiGapForSM %7.4f cm \n", fPhiGapForSM); | |
d87bd045 | 268 | if(name.Contains("110DEG"))printf(" Last two modules have size 10 degree in phi (180<phi<190)\n"); |
1963b290 | 269 | } |
270 | } | |
88cb7938 | 271 | printf("Granularity: %d in eta and %d in phi\n", GetNZ(), GetNPhi()) ; |
1963b290 | 272 | printf("Layout: phi = (%7.1f, %7.1f), eta = (%5.2f, %5.2f), IP = %7.2f\n", |
273 | GetArm1PhiMin(), GetArm1PhiMax(),GetArm1EtaMin(), GetArm1EtaMax(), GetIPDistance() ); | |
88cb7938 | 274 | } |
2012850d | 275 | } |
173558f2 | 276 | |
b13bbe81 | 277 | //______________________________________________________________________ |
278 | AliEMCALGeometry * AliEMCALGeometry::GetInstance(){ | |
05a92d59 | 279 | // Returns the pointer of the unique instance |
280 | ||
281 | return static_cast<AliEMCALGeometry *>( fgGeom ) ; | |
2012850d | 282 | } |
173558f2 | 283 | |
b13bbe81 | 284 | //______________________________________________________________________ |
285 | AliEMCALGeometry* AliEMCALGeometry::GetInstance(const Text_t* name, | |
286 | const Text_t* title){ | |
287 | // Returns the pointer of the unique instance | |
288 | ||
289 | AliEMCALGeometry * rv = 0; | |
290 | if ( fgGeom == 0 ) { | |
291 | if ( strcmp(name,"") == 0 ) rv = 0; | |
292 | else { | |
293 | fgGeom = new AliEMCALGeometry(name, title); | |
294 | if ( fgInit ) rv = (AliEMCALGeometry * ) fgGeom; | |
295 | else { | |
296 | rv = 0; | |
297 | delete fgGeom; | |
298 | fgGeom = 0; | |
299 | } // end if fgInit | |
300 | } // end if strcmp(name,"") | |
301 | }else{ | |
302 | if ( strcmp(fgGeom->GetName(), name) != 0 ) { | |
fdebddeb | 303 | printf("\ncurrent geometry is ") ; |
304 | printf(fgGeom->GetName()); | |
305 | printf("\n you cannot call "); | |
306 | printf(name); | |
b13bbe81 | 307 | }else{ |
9859bfc0 | 308 | rv = (AliEMCALGeometry *) fgGeom; |
b13bbe81 | 309 | } // end if |
310 | } // end if fgGeom | |
311 | return rv; | |
2012850d | 312 | } |
173558f2 | 313 | |
ca8f5bd0 | 314 | //______________________________________________________________________ |
395c7ba2 | 315 | Int_t AliEMCALGeometry::TowerIndex(Int_t ieta,Int_t iphi) const { |
316 | // Returns the tower index number from the based on the Z and Phi | |
fdebddeb | 317 | // index numbers. |
395c7ba2 | 318 | // Inputs: |
fdebddeb | 319 | // Int_t ieta // index along z axis [1-fNZ] |
320 | // Int_t iphi // index along phi axis [1-fNPhi] | |
395c7ba2 | 321 | // Outputs: |
322 | // none. | |
323 | // Returned | |
324 | // Int_t index // Tower index number | |
325 | ||
326 | if ( (ieta <= 0 || ieta>GetNEta()) || | |
f1da4a27 | 327 | (iphi <= 0 || iphi>GetNPhi())) { |
328 | Error("TowerIndex", "Unexpected parameters eta = %d phi = %d!", ieta, iphi) ; | |
329 | return -1; | |
330 | } | |
395c7ba2 | 331 | return ( (iphi - 1)*GetNEta() + ieta ); |
ca8f5bd0 | 332 | } |
173558f2 | 333 | |
ca8f5bd0 | 334 | //______________________________________________________________________ |
fdebddeb | 335 | void AliEMCALGeometry::TowerIndexes(Int_t index,Int_t &ieta,Int_t &iphi) const { |
395c7ba2 | 336 | // Inputs: |
fdebddeb | 337 | // Int_t index // Tower index number [1-fNZ*fNPhi] |
395c7ba2 | 338 | // Outputs: |
339 | // Int_t ieta // index allong z axis [1-fNZ] | |
340 | // Int_t iphi // index allong phi axis [1-fNPhi] | |
395c7ba2 | 341 | // Returned |
342 | // none. | |
395c7ba2 | 343 | |
fdebddeb | 344 | Int_t nindex = 0; |
395c7ba2 | 345 | |
fdebddeb | 346 | if ( IsInECA(index) ) { // ECAL index |
395c7ba2 | 347 | nindex = index ; |
395c7ba2 | 348 | } |
f1da4a27 | 349 | else { |
350 | Error("TowerIndexes", "Unexpected Id number!") ; | |
351 | ieta = -1; | |
352 | iphi = -1; | |
353 | return; | |
354 | } | |
355 | ||
395c7ba2 | 356 | if (nindex%GetNZ()) |
357 | iphi = nindex / GetNZ() + 1 ; | |
358 | else | |
359 | iphi = nindex / GetNZ() ; | |
360 | ieta = nindex - (iphi - 1) * GetNZ() ; | |
361 | ||
362 | if (gDebug==2) | |
fdebddeb | 363 | printf("TowerIndexes: index=%d,%d, ieta=%d, iphi = %d", index, nindex,ieta, iphi) ; |
395c7ba2 | 364 | return; |
365 | ||
ca8f5bd0 | 366 | } |
173558f2 | 367 | |
ca8f5bd0 | 368 | //______________________________________________________________________ |
a34b7b9f | 369 | void AliEMCALGeometry::EtaPhiFromIndex(Int_t index,Float_t &eta,Float_t &phi) const { |
ca8f5bd0 | 370 | // given the tower index number it returns the based on the eta and phi |
371 | // of the tower. | |
372 | // Inputs: | |
fdebddeb | 373 | // Int_t index // Tower index number [1-fNZ*fNPhi] |
ca8f5bd0 | 374 | // Outputs: |
375 | // Float_t eta // eta of center of tower in pseudorapidity | |
376 | // Float_t phi // phi of center of tower in degrees | |
377 | // Returned | |
378 | // none. | |
fdebddeb | 379 | Int_t ieta, iphi; |
395c7ba2 | 380 | Float_t deta, dphi ; |
ca8f5bd0 | 381 | |
fdebddeb | 382 | TowerIndexes(index,ieta,iphi); |
395c7ba2 | 383 | |
384 | if (gDebug == 2) | |
fdebddeb | 385 | printf("EtaPhiFromIndex: index = %d, ieta = %d, iphi = %d", index, ieta, iphi) ; |
395c7ba2 | 386 | |
387 | deta = (GetArm1EtaMax()-GetArm1EtaMin())/(static_cast<Float_t>(GetNEta())); | |
388 | eta = GetArm1EtaMin() + ((static_cast<Float_t>(ieta) - 0.5 ))*deta; | |
389 | ||
390 | dphi = (GetArm1PhiMax() - GetArm1PhiMin())/(static_cast<Float_t>(GetNPhi())); // in degrees. | |
391 | phi = GetArm1PhiMin() + dphi*(static_cast<Float_t>(iphi) - 0.5);//iphi range [1-fNphi]. | |
ca8f5bd0 | 392 | } |
173558f2 | 393 | |
ca8f5bd0 | 394 | //______________________________________________________________________ |
a34b7b9f | 395 | Int_t AliEMCALGeometry::TowerIndexFromEtaPhi(Float_t eta,Float_t phi) const { |
ca8f5bd0 | 396 | // returns the tower index number based on the eta and phi of the tower. |
397 | // Inputs: | |
398 | // Float_t eta // eta of center of tower in pseudorapidity | |
399 | // Float_t phi // phi of center of tower in degrees | |
400 | // Outputs: | |
401 | // none. | |
402 | // Returned | |
403 | // Int_t index // Tower index number [1-fNZ*fNPhi] | |
395c7ba2 | 404 | |
e908f07f | 405 | Int_t ieta,iphi; |
ca8f5bd0 | 406 | |
395c7ba2 | 407 | ieta = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNEta()) * (eta - GetArm1EtaMin()) / (GetArm1EtaMax() - GetArm1EtaMin())) ) ; |
408 | ||
409 | if( ieta <= 0 || ieta > GetNEta() ) { | |
410 | Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ; | |
411 | return -1 ; | |
412 | } | |
413 | ||
414 | iphi = static_cast<Int_t> ( 1 + (static_cast<Float_t>(GetNPhi()) * (phi - GetArm1PhiMin()) / (GetArm1PhiMax() - GetArm1PhiMin())) ) ; | |
415 | ||
416 | if( iphi <= 0 || iphi > GetNPhi() ) { | |
417 | Error("TowerIndexFromEtaPhi", "Unexpected (eta, phi) = (%f, %f) value, outside of EMCAL!", eta, phi) ; | |
418 | return -1 ; | |
419 | } | |
420 | ||
421 | return TowerIndex(ieta,iphi); | |
ca8f5bd0 | 422 | } |
173558f2 | 423 | |
ca8f5bd0 | 424 | //______________________________________________________________________ |
a34b7b9f | 425 | Bool_t AliEMCALGeometry::AbsToRelNumbering(Int_t AbsId, Int_t *relid) const { |
ca8f5bd0 | 426 | // Converts the absolute numbering into the following array/ |
2608a1fc | 427 | // relid[0] = Row number inside EMCAL |
428 | // relid[1] = Column number inside EMCAL | |
ca8f5bd0 | 429 | // Input: |
430 | // Int_t AbsId // Tower index number [1-2*fNZ*fNPhi] | |
431 | // Outputs: | |
2608a1fc | 432 | // Int_t *relid // array of 2. Described above. |
ca8f5bd0 | 433 | Bool_t rv = kTRUE ; |
fdebddeb | 434 | Int_t ieta=0,iphi=0,index=AbsId; |
ca8f5bd0 | 435 | |
fdebddeb | 436 | TowerIndexes(index,ieta,iphi); |
2608a1fc | 437 | relid[0] = ieta; |
438 | relid[1] = iphi; | |
ca8f5bd0 | 439 | |
440 | return rv; | |
441 | } | |
173558f2 | 442 | |
ca8f5bd0 | 443 | //______________________________________________________________________ |
395c7ba2 | 444 | void AliEMCALGeometry::PosInAlice(const Int_t *relid, Float_t &theta, Float_t &phi) const |
445 | { | |
446 | // Converts the relative numbering into the local EMCAL-module (x, z) | |
447 | // coordinates | |
2608a1fc | 448 | Int_t ieta = relid[0]; // offset along x axis |
449 | Int_t iphi = relid[1]; // offset along z axis | |
395c7ba2 | 450 | Int_t index; |
451 | Float_t eta; | |
452 | ||
453 | index = TowerIndex(ieta,iphi); | |
454 | EtaPhiFromIndex(index,eta,phi); | |
fdebddeb | 455 | //theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi(); |
456 | theta = 2.0*TMath::ATan(TMath::Exp(-eta)); | |
395c7ba2 | 457 | |
fdebddeb | 458 | // correct for distance to IP |
459 | Float_t d = GetIP2ECASection() - GetIPDistance() ; | |
395c7ba2 | 460 | |
461 | Float_t correction = 1 + d/GetIPDistance() ; | |
462 | Float_t tantheta = TMath::Tan(theta) * correction ; | |
463 | theta = TMath::ATan(tantheta) * TMath::RadToDeg() ; | |
464 | if (theta < 0 ) | |
465 | theta += 180. ; | |
466 | ||
467 | return; | |
468 | } | |
ca8f5bd0 | 469 | |
395c7ba2 | 470 | //______________________________________________________________________ |
09884213 | 471 | void AliEMCALGeometry::PosInAlice(Int_t absid, Float_t &theta, Float_t &phi) const |
395c7ba2 | 472 | { |
473 | // Converts the relative numbering into the local EMCAL-module (x, z) | |
474 | // coordinates | |
2608a1fc | 475 | Int_t relid[2] ; |
395c7ba2 | 476 | AbsToRelNumbering(absid, relid) ; |
2608a1fc | 477 | Int_t ieta = relid[0]; // offset along x axis |
478 | Int_t iphi = relid[1]; // offset along z axis | |
395c7ba2 | 479 | Int_t index; |
480 | Float_t eta; | |
481 | ||
482 | index = TowerIndex(ieta,iphi); | |
483 | EtaPhiFromIndex(index,eta,phi); | |
484 | theta = 2.0*TMath::ATan(TMath::Exp(-eta)) ; | |
485 | ||
fdebddeb | 486 | // correct for distance to IP |
395c7ba2 | 487 | Float_t d = 0. ; |
fdebddeb | 488 | if (IsInECA(absid)) |
88cb7938 | 489 | d = GetIP2ECASection() - GetIPDistance() ; |
f1da4a27 | 490 | else { |
491 | Error("PosInAlice", "Unexpected id # %d!", absid) ; | |
492 | return; | |
493 | } | |
395c7ba2 | 494 | |
495 | Float_t correction = 1 + d/GetIPDistance() ; | |
496 | Float_t tantheta = TMath::Tan(theta) * correction ; | |
497 | theta = TMath::ATan(tantheta) * TMath::RadToDeg() ; | |
498 | if (theta < 0 ) | |
499 | theta += 180. ; | |
500 | ||
501 | return; | |
ca8f5bd0 | 502 | } |
6119e5db | 503 | |
504 | //______________________________________________________________________ | |
505 | void AliEMCALGeometry::XYZFromIndex(const Int_t *relid,Float_t &x,Float_t &y, Float_t &z) const { | |
506 | // given the tower relative number it returns the X, Y and Z | |
507 | // of the tower. | |
508 | ||
509 | // Outputs: | |
510 | // Float_t x // x of center of tower in cm | |
511 | // Float_t y // y of center of tower in cm | |
512 | // Float_t z // z of centre of tower in cm | |
513 | // Returned | |
514 | // none. | |
515 | ||
fdebddeb | 516 | Float_t eta,theta, phi,cylradius=0. ; |
6119e5db | 517 | |
2608a1fc | 518 | Int_t ieta = relid[0]; // offset along x axis |
519 | Int_t iphi = relid[1]; // offset along z axis. | |
6119e5db | 520 | Int_t index; |
521 | ||
395c7ba2 | 522 | index = TowerIndex(ieta,iphi); |
6119e5db | 523 | EtaPhiFromIndex(index,eta,phi); |
524 | theta = 180.*(2.0*TMath::ATan(TMath::Exp(-eta)))/TMath::Pi(); | |
6119e5db | 525 | |
fdebddeb | 526 | cylradius = GetIP2ECASection() ; |
a97849a9 | 527 | |
395c7ba2 | 528 | Double_t kDeg2Rad = TMath::DegToRad() ; |
fdebddeb | 529 | x = cylradius * TMath::Cos(phi * kDeg2Rad ) ; |
530 | y = cylradius * TMath::Sin(phi * kDeg2Rad ) ; | |
531 | z = cylradius / TMath::Tan(theta * kDeg2Rad ) ; | |
6119e5db | 532 | |
533 | return; | |
534 | } | |
535 | ||
395c7ba2 | 536 | //______________________________________________________________________ |
09884213 | 537 | void AliEMCALGeometry::XYZFromIndex(Int_t absid, TVector3 &v) const { |
395c7ba2 | 538 | // given the tower relative number it returns the X, Y and Z |
539 | // of the tower. | |
540 | ||
541 | // Outputs: | |
542 | // Float_t x // x of center of tower in cm | |
543 | // Float_t y // y of center of tower in cm | |
544 | // Float_t z // z of centre of tower in cm | |
545 | // Returned | |
546 | // none. | |
547 | ||
fdebddeb | 548 | Float_t theta, phi,cylradius=0. ; |
395c7ba2 | 549 | |
550 | PosInAlice(absid, theta, phi) ; | |
551 | ||
88cb7938 | 552 | if ( IsInECA(absid) ) |
fdebddeb | 553 | cylradius = GetIP2ECASection() ; |
f1da4a27 | 554 | else { |
555 | Error("XYZFromIndex", "Unexpected Tower section") ; | |
556 | return; | |
557 | } | |
395c7ba2 | 558 | |
559 | Double_t kDeg2Rad = TMath::DegToRad() ; | |
fdebddeb | 560 | v.SetX(cylradius * TMath::Cos(phi * kDeg2Rad ) ); |
561 | v.SetY(cylradius * TMath::Sin(phi * kDeg2Rad ) ); | |
562 | v.SetZ(cylradius / TMath::Tan(theta * kDeg2Rad ) ) ; | |
395c7ba2 | 563 | |
564 | return; | |
565 | } | |
ab37d09c | 566 | |
567 | Bool_t AliEMCALGeometry::IsInEMCAL(Double_t x, Double_t y, Double_t z) const { | |
568 | // Checks whether point is inside the EMCal volume | |
569 | // | |
570 | // Code uses cylindrical approximation made of inner radius (for speed) | |
571 | // | |
572 | // Points behind EMCAl, i.e. R > outer radius, but eta, phi in acceptance | |
573 | // are considered to inside | |
574 | ||
575 | Double_t r=sqrt(x*x+y*y); | |
576 | ||
577 | if ( r > fEnvelop[0] ) { | |
578 | Double_t theta; | |
579 | theta = TMath::ATan2(r,z); | |
580 | Double_t eta; | |
581 | if(theta == 0) | |
582 | eta = 9999; | |
583 | else | |
584 | eta = -TMath::Log(TMath::Tan(theta/2.)); | |
585 | if (eta < fArm1EtaMin || eta > fArm1EtaMax) | |
586 | return 0; | |
587 | ||
588 | Double_t phi = TMath::ATan2(y,x) * 180./TMath::Pi(); | |
589 | if (phi > fArm1PhiMin && phi < fArm1PhiMax) | |
590 | return 1; | |
591 | } | |
592 | return 0; | |
593 | } | |
1963b290 | 594 | |
595 | // | |
596 | // == Shish-kebab cases == | |
597 | // | |
eb0b1051 | 598 | Int_t AliEMCALGeometry::GetAbsCellId(Int_t nSupMod, Int_t nTower, Int_t nIphi, Int_t nIeta) |
d87bd045 | 599 | { // 27-aug-04; |
600 | // corr. 21-sep-04; | |
601 | // 13-oct-05; 110 degree case | |
602 | // 1 <= nSupMod <= fNumberOfSuperModules | |
603 | // 1 <= nTower <= fNPHI * fNZ ( fNPHI * fNZ/2 for fKey110DEG=1) | |
604 | // 1 <= nIphi <= fNPHIdiv | |
605 | // 1 <= nIeta <= fNETAdiv | |
606 | // 1 <= absid <= fNCells | |
607 | static Int_t id=0; // have to change from 1 to fNCells | |
608 | if(fKey110DEG == 1 && nSupMod > 10) { // 110 degree case; last two supermodules | |
609 | id = fNCellsInSupMod*10 + (fNCellsInSupMod/2)*(nSupMod-11); | |
610 | } else { | |
611 | id = fNCellsInSupMod*(nSupMod-1); | |
612 | } | |
1963b290 | 613 | id += fNCellsInTower *(nTower-1); |
614 | id += fNPHIdiv *(nIphi-1); | |
615 | id += nIeta; | |
616 | if(id<=0 || id > fNCells) { | |
500aeccc | 617 | // printf(" wrong numerations !!\n"); |
618 | // printf(" id %6i(will be force to -1)\n", id); | |
619 | // printf(" fNCells %6i\n", fNCells); | |
620 | // printf(" nSupMod %6i\n", nSupMod); | |
621 | // printf(" nTower %6i\n", nTower); | |
622 | // printf(" nIphi %6i\n", nIphi); | |
623 | // printf(" nIeta %6i\n", nIeta); | |
d87bd045 | 624 | id = -TMath::Abs(id); |
1963b290 | 625 | } |
626 | return id; | |
627 | } | |
628 | ||
629 | Bool_t AliEMCALGeometry::CheckAbsCellId(Int_t ind) | |
630 | { // 17-niv-04 - analog of IsInECA | |
631 | if(name.Contains("TRD")) { | |
632 | if(ind<=0 || ind > fNCells) return kFALSE; | |
633 | else return kTRUE; | |
634 | } else return IsInECA(ind); | |
635 | } | |
636 | ||
eb0b1051 | 637 | Bool_t AliEMCALGeometry::GetCellIndex(Int_t absId,Int_t &nSupMod,Int_t &nTower,Int_t &nIphi,Int_t &nIeta) |
1963b290 | 638 | { // 21-sep-04 |
d87bd045 | 639 | // 19-oct-05; |
640 | static Int_t tmp=0, sm10=0; | |
1963b290 | 641 | if(absId<=0 || absId>fNCells) { |
500aeccc | 642 | // Info("GetCellIndex"," wrong abs Id %i !! \n", absId); |
1963b290 | 643 | return kFALSE; |
644 | } | |
d87bd045 | 645 | sm10 = fNCellsInSupMod*10; |
646 | if(fKey110DEG == 1 && absId > sm10) { // 110 degree case; last two supermodules | |
647 | nSupMod = (absId-1-sm10) / (fNCellsInSupMod/2) + 11; | |
648 | tmp = (absId-1-sm10) % (fNCellsInSupMod/2); | |
649 | } else { | |
650 | nSupMod = (absId-1) / fNCellsInSupMod + 1; | |
651 | tmp = (absId-1) % fNCellsInSupMod; | |
652 | } | |
1963b290 | 653 | |
654 | nTower = tmp / fNCellsInTower + 1; | |
655 | tmp = tmp % fNCellsInTower; | |
d87bd045 | 656 | nIphi = tmp / fNPHIdiv + 1; |
657 | nIeta = tmp % fNPHIdiv + 1; | |
1963b290 | 658 | |
659 | return kTRUE; | |
660 | } | |
661 | ||
eb0b1051 | 662 | void AliEMCALGeometry::GetTowerPhiEtaIndexInSModule(Int_t nSupMod, Int_t nTower, int &iphit, int &ietat) |
d87bd045 | 663 | { // added nSupMod; have to check - 19-oct-05 ! |
664 | static Int_t nphi; | |
665 | ||
666 | if(fKey110DEG == 1 && nSupMod>=11) nphi = fNPhi/2; | |
667 | else nphi = fNPhi; | |
668 | ||
669 | ietat = (nTower-1)/nphi + 1; // have to change from 1 to fNZ | |
670 | ||
671 | iphit = (nTower-1)%nphi + 1; // have to change from 1 to fNPhi | |
672 | } | |
673 | ||
eb0b1051 | 674 | void AliEMCALGeometry::GetCellPhiEtaIndexInSModule(Int_t nSupMod, Int_t nTower, Int_t nIphi, Int_t nIeta, |
1963b290 | 675 | int &iphi, int &ieta) |
d87bd045 | 676 | { // added nSupMod; have to check - 19-oct-05 ! |
677 | static Int_t iphit, ietat, nphi; | |
678 | ||
679 | if(fKey110DEG == 1 && nSupMod>=11) nphi = fNPhi/2; | |
680 | else nphi = fNPhi; | |
1963b290 | 681 | |
d87bd045 | 682 | ietat = (nTower-1)/nphi; |
683 | ieta = ietat*fNETAdiv + nIeta; // have to change from 1 to fNZ*fNETAdiv | |
1963b290 | 684 | |
d87bd045 | 685 | iphit = (nTower-1)%nphi; |
686 | iphi = iphit*fNPHIdiv + nIphi; // have to change from 1 to fNPhi*fNPHIdiv | |
1963b290 | 687 | } |