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70a0fabe | 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: AliPHOSGeometry.cxx 25590 2008-05-06 07:09:11Z prsnko $ */ | |
17 | ||
18 | //_________________________________________________________________________ | |
bb5c37a5 | 19 | // Geometry class for PHOS |
70a0fabe | 20 | // PHOS consists of the electromagnetic calorimeter (EMCA) |
bb5c37a5 | 21 | // and a charged particle veto (CPV) |
22 | // The EMCA/CPV modules are parametrized so that any configuration | |
70a0fabe | 23 | // can be easily implemented |
24 | // The title is used to identify the version of CPV used. | |
25 | // | |
26 | // -- Author: Yves Schutz (SUBATECH) & Dmitri Peressounko (RRC "KI" & SUBATECH) | |
27 | ||
28 | // --- ROOT system --- | |
29 | ||
bb5c37a5 | 30 | #include "TClonesArray.h" |
70a0fabe | 31 | #include "TVector3.h" |
32 | #include "TParticle.h" | |
33 | #include <TGeoManager.h> | |
34 | #include <TGeoMatrix.h> | |
35 | ||
36 | // --- Standard library --- | |
37 | ||
38 | // --- AliRoot header files --- | |
478420eb | 39 | #include "AliLog.h" |
70a0fabe | 40 | #include "AliPHOSEMCAGeometry.h" |
41 | #include "AliPHOSCPVGeometry.h" | |
bcc9e89e | 42 | #include "AliPHOSSupportGeometry.h" |
70a0fabe | 43 | #include "AliPHOSGeoUtils.h" |
44 | ||
45 | ClassImp(AliPHOSGeoUtils) | |
46 | ||
47 | //____________________________________________________________________________ | |
48 | AliPHOSGeoUtils::AliPHOSGeoUtils(): | |
bcc9e89e | 49 | fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0), |
70a0fabe | 50 | fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0), |
51 | fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0), | |
52 | fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0), | |
bb5c37a5 | 53 | fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.), |
54 | fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0) | |
70a0fabe | 55 | |
56 | { | |
57 | // default ctor | |
58 | // must be kept public for root persistency purposes, but should never be called by the outside world | |
59 | } | |
60 | ||
61 | //____________________________________________________________________________ | |
62 | AliPHOSGeoUtils::AliPHOSGeoUtils(const AliPHOSGeoUtils & rhs) | |
63 | : TNamed(rhs), | |
bcc9e89e | 64 | fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0), |
70a0fabe | 65 | fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0), |
66 | fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0), | |
67 | fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0), | |
bb5c37a5 | 68 | fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.), |
69 | fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0) | |
70a0fabe | 70 | { |
71 | Fatal("cpy ctor", "not implemented") ; | |
72 | } | |
73 | ||
74 | //____________________________________________________________________________ | |
75 | AliPHOSGeoUtils::AliPHOSGeoUtils(const Text_t* name, const Text_t* title) | |
76 | : TNamed(name, title), | |
bcc9e89e | 77 | fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0), |
70a0fabe | 78 | fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0), |
79 | fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0), | |
80 | fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0), | |
bb5c37a5 | 81 | fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.), |
82 | fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0) | |
70a0fabe | 83 | { |
84 | // ctor only for normal usage | |
bcc9e89e | 85 | |
86 | fGeometryEMCA = new AliPHOSEMCAGeometry() ; | |
87 | fGeometryCPV = new AliPHOSCPVGeometry() ; | |
88 | fGeometrySUPP = new AliPHOSSupportGeometry() ; | |
89 | ||
90 | fNModules = 5; | |
91 | fNPhi = fGeometryEMCA->GetNPhi() ; | |
92 | fNZ = fGeometryEMCA->GetNZ() ; | |
93 | fNCristalsInModule = fNPhi*fNZ ; | |
94 | fNCellsXInStrip= fGeometryEMCA->GetNCellsXInStrip() ; | |
95 | fNCellsZInStrip= fGeometryEMCA->GetNCellsZInStrip() ; | |
96 | fNStripZ = fGeometryEMCA->GetNStripZ() ; | |
97 | fXtlArrSize[0]=fGeometryEMCA->GetInnerThermoHalfSize()[0] ; //Wery close to the zise of the Xtl set | |
98 | fXtlArrSize[1]=fGeometryEMCA->GetInnerThermoHalfSize()[1] ; //Wery close to the zise of the Xtl set | |
99 | fXtlArrSize[2]=fGeometryEMCA->GetInnerThermoHalfSize()[2] ; //Wery close to the zise of the Xtl set | |
100 | ||
101 | //calculate offset to crystal surface | |
a2bb6de5 | 102 | const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ; |
103 | const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ; | |
104 | const Float_t * splate = fGeometryEMCA->GetSupportPlateHalfSize(); | |
105 | const Float_t * crystal = fGeometryEMCA->GetCrystalHalfSize() ; | |
106 | const Float_t * pin = fGeometryEMCA->GetAPDHalfSize() ; | |
107 | const Float_t * preamp = fGeometryEMCA->GetPreampHalfSize() ; | |
bcc9e89e | 108 | fCrystalShift=-inthermo[1]+strip[1]+splate[1]+crystal[1]-fGeometryEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ; |
109 | fCryCellShift=crystal[1]-(fGeometryEMCA->GetAirGapLed()-2*pin[1]-2*preamp[1])/2; | |
bb5c37a5 | 110 | fCryStripShift=fCryCellShift+splate[1] ; |
bcc9e89e | 111 | fCellStep = 2.*fGeometryEMCA->GetAirCellHalfSize()[0] ; |
112 | ||
bcc9e89e | 113 | fNumberOfCPVPadsPhi = fGeometryCPV->GetNumberOfCPVPadsPhi() ; |
114 | fNumberOfCPVPadsZ = fGeometryCPV->GetNumberOfCPVPadsZ() ; | |
115 | fPadSizePhi = fGeometryCPV->GetCPVPadSizePhi() ; | |
116 | fPadSizeZ = fGeometryCPV->GetCPVPadSizeZ() ; | |
117 | fCPVBoxSizeY= fGeometryCPV->GetCPVBoxSize(1) ; | |
bb5c37a5 | 118 | |
119 | for(Int_t mod=0; mod<5; mod++){ | |
120 | fEMCMatrix[mod]=0 ; | |
121 | for(Int_t istrip=0; istrip<224; istrip++) | |
122 | fStripMatrix[mod][istrip]=0 ; | |
123 | fCPVMatrix[mod]=0; | |
124 | fPHOSMatrix[mod]=0 ; | |
125 | } | |
126 | ||
70a0fabe | 127 | } |
128 | ||
129 | //____________________________________________________________________________ | |
130 | AliPHOSGeoUtils & AliPHOSGeoUtils::operator = (const AliPHOSGeoUtils & /*rvalue*/) { | |
bcc9e89e | 131 | |
132 | Fatal("assignment operator", "not implemented") ; | |
70a0fabe | 133 | return *this ; |
134 | } | |
135 | ||
136 | //____________________________________________________________________________ | |
137 | AliPHOSGeoUtils::~AliPHOSGeoUtils(void) | |
138 | { | |
139 | // dtor | |
bcc9e89e | 140 | if(fGeometryEMCA){ |
141 | delete fGeometryEMCA; fGeometryEMCA = 0 ; | |
142 | } | |
143 | if(fGeometryCPV){ | |
144 | delete fGeometryCPV; fGeometryCPV=0 ; | |
145 | } | |
146 | if(fGeometrySUPP){ | |
147 | delete fGeometrySUPP ; fGeometrySUPP=0 ; | |
148 | } | |
bb5c37a5 | 149 | if(fMisalArray){ |
150 | delete fMisalArray; fMisalArray=0 ; | |
151 | } | |
70a0fabe | 152 | } |
153 | //____________________________________________________________________________ | |
154 | Bool_t AliPHOSGeoUtils::AbsToRelNumbering(Int_t absId, Int_t * relid) const | |
155 | { | |
156 | // Converts the absolute numbering into the following array | |
157 | // relid[0] = PHOS Module number 1:fNModules | |
158 | // relid[1] = 0 if PbW04 | |
159 | // = -1 if CPV | |
160 | // relid[2] = Row number inside a PHOS module | |
161 | // relid[3] = Column number inside a PHOS module | |
162 | ||
163 | Float_t id = absId ; | |
164 | ||
165 | Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / fNCristalsInModule ) ; | |
166 | ||
167 | if ( phosmodulenumber > fNModules ) { // it is a CPV pad | |
168 | ||
169 | id -= fNPhi * fNZ * fNModules ; | |
170 | Float_t nCPV = fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ ; | |
171 | relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ; | |
172 | relid[1] = -1 ; | |
173 | id -= ( relid[0] - 1 ) * nCPV ; | |
174 | relid[2] = (Int_t) TMath::Ceil( id / fNumberOfCPVPadsZ ) ; | |
175 | relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * fNumberOfCPVPadsZ ) ; | |
176 | } | |
177 | else { // it is a PW04 crystal | |
178 | ||
179 | relid[0] = phosmodulenumber ; | |
180 | relid[1] = 0 ; | |
181 | id -= ( phosmodulenumber - 1 ) * fNPhi * fNZ ; | |
182 | relid[2] = (Int_t)TMath::Ceil( id / fNZ ) ; | |
183 | relid[3] = (Int_t)( id - ( relid[2] - 1 ) * fNZ ) ; | |
184 | } | |
185 | return kTRUE ; | |
186 | } | |
187 | //____________________________________________________________________________ | |
188 | Bool_t AliPHOSGeoUtils::RelToAbsNumbering(const Int_t * relid, Int_t & absId) const | |
189 | { | |
190 | // Converts the relative numbering into the absolute numbering | |
191 | // EMCA crystals: | |
192 | // absId = from 1 to fNModules * fNPhi * fNZ | |
193 | // CPV pad: | |
194 | // absId = from N(total PHOS crystals) + 1 | |
195 | // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ | |
196 | ||
197 | if ( relid[1] == 0 ) { // it is a Phos crystal | |
198 | absId = | |
199 | ( relid[0] - 1 ) * fNPhi * fNZ // the offset of PHOS modules | |
200 | + ( relid[2] - 1 ) * fNZ // the offset along phi | |
201 | + relid[3] ; // the offset along z | |
202 | } | |
203 | else { // it is a CPV pad | |
204 | absId = fNPhi * fNZ * fNModules // the offset to separate EMCA crystals from CPV pads | |
205 | + ( relid[0] - 1 ) * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ // the pads offset of PHOS modules | |
206 | + ( relid[2] - 1 ) * fNumberOfCPVPadsZ // the pads offset of a CPV row | |
207 | + relid[3] ; // the column number | |
208 | } | |
209 | ||
210 | return kTRUE ; | |
211 | } | |
212 | ||
213 | //____________________________________________________________________________ | |
214 | void AliPHOSGeoUtils::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z) const | |
215 | { | |
216 | // Converts the relative numbering into the local PHOS-module (x, z) coordinates | |
217 | ||
70a0fabe | 218 | if(relid[1]==0){ //this is PHOS |
219 | ||
220 | Double_t pos[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal | |
221 | Double_t posC[3]={0.0,0.0,0.}; //Global position | |
222 | ||
223 | //Shift and possibly apply misalignment corrections | |
224 | Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ- | |
225 | (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ; | |
bb5c37a5 | 226 | pos[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ; |
227 | pos[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ; | |
228 | ||
229 | Int_t mod = relid[0] ; | |
98082233 | 230 | const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ; |
bb5c37a5 | 231 | m2->LocalToMaster(pos,posC); |
232 | ||
70a0fabe | 233 | //Return to PHOS local system |
bb5c37a5 | 234 | Double_t posL2[3]={posC[0],posC[1],posC[2]}; |
98082233 | 235 | const TGeoHMatrix *mPHOS2 = GetMatrixForModule(mod) ; |
bb5c37a5 | 236 | mPHOS2->MasterToLocal(posC,posL2); |
237 | x=posL2[0] ; | |
238 | z=-posL2[2]; | |
70a0fabe | 239 | return ; |
240 | } | |
241 | else{//CPV | |
242 | //first calculate position with respect to CPV plain | |
243 | Int_t row = relid[2] ; //offset along x axis | |
244 | Int_t column = relid[3] ; //offset along z axis | |
245 | Double_t pos[3]= {0.0,0.0,0.}; //Position incide the CPV printed circuit | |
246 | Double_t posC[3]={0.0,0.0,0.}; //Global position | |
247 | pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect | |
248 | pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module | |
249 | ||
250 | //now apply possible shifts and rotations | |
98082233 | 251 | const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ; |
bb5c37a5 | 252 | m->LocalToMaster(pos,posC); |
70a0fabe | 253 | //Return to PHOS local system |
254 | Double_t posL[3]={0.,0.,0.,} ; | |
98082233 | 255 | const TGeoHMatrix *mPHOS = GetMatrixForPHOS(relid[0]) ; |
bb5c37a5 | 256 | mPHOS->MasterToLocal(posC,posL); |
70a0fabe | 257 | x=posL[0] ; |
258 | z=posL[1]; | |
259 | return ; | |
260 | ||
261 | } | |
262 | ||
263 | } | |
264 | //____________________________________________________________________________ | |
265 | void AliPHOSGeoUtils::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & absId) const | |
266 | { | |
267 | // converts local PHOS-module (x, z) coordinates to absId | |
268 | ||
bb5c37a5 | 269 | //Calculate AbsId using ideal geometry. Should be sufficient for primary particles calculation |
270 | //(the only place where this method used currently) | |
271 | Int_t relid[4]={module,0,1,1} ; | |
272 | relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) ); | |
478420eb | 273 | relid[3] = fNZ+1-static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ; |
bb5c37a5 | 274 | if(relid[2]<1)relid[2]=1 ; |
275 | if(relid[3]<1)relid[3]=1 ; | |
276 | if(relid[2]>fNPhi)relid[2]=fNPhi ; | |
277 | if(relid[3]>fNZ)relid[3]=fNZ ; | |
278 | RelToAbsNumbering(relid,absId) ; | |
279 | ||
280 | /* | |
70a0fabe | 281 | //find Global position |
282 | if (!gGeoManager){ | |
283 | printf("Geo manager not initialized\n"); | |
284 | abort() ; | |
285 | } | |
286 | Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!! | |
287 | Double_t posG[3] ; | |
288 | char path[100] ; | |
289 | sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ; | |
290 | if (!gGeoManager->cd(path)){ | |
291 | printf("Geo manager can not find path \n"); | |
292 | abort() ; | |
293 | } | |
294 | TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix(); | |
295 | if (mPHOS){ | |
296 | mPHOS->LocalToMaster(posL,posG); | |
297 | } | |
298 | else{ | |
299 | printf("Geo matrixes are not loaded \n") ; | |
300 | abort() ; | |
301 | } | |
302 | ||
303 | Int_t relid[4] ; | |
304 | gGeoManager->FindNode(posG[0],posG[1],posG[2]) ; | |
305 | //Check that path contains PSTR and extract strip number | |
306 | TString cpath(gGeoManager->GetPath()) ; | |
307 | Int_t indx = cpath.Index("PCEL") ; | |
308 | if(indx==-1){ //for the few events when particle hits between srips use ideal geometry | |
309 | relid[0] = module ; | |
310 | relid[1] = 0 ; | |
311 | relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) ); | |
312 | relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ; | |
313 | if(relid[2]<1)relid[2]=1 ; | |
314 | if(relid[3]<1)relid[3]=1 ; | |
315 | if(relid[2]>fNPhi)relid[2]=fNPhi ; | |
316 | if(relid[3]>fNZ)relid[3]=fNZ ; | |
317 | RelToAbsNumbering(relid,absId) ; | |
318 | } | |
319 | else{ | |
320 | Int_t indx2 = cpath.Index("/",indx) ; | |
321 | if(indx2==-1) | |
322 | indx2=cpath.Length() ; | |
323 | TString cell=cpath(indx+5,indx2-indx-5) ; | |
324 | Int_t icell=cell.Atoi() ; | |
325 | indx = cpath.Index("PSTR") ; | |
326 | indx2 = cpath.Index("/",indx) ; | |
327 | TString strip=cpath(indx+5,indx2-indx-5) ; | |
328 | Int_t iStrip = strip.Atoi() ; | |
329 | ||
330 | Int_t row = fNStripZ - (iStrip - 1) % (fNStripZ) ; | |
331 | Int_t col = (Int_t) TMath::Ceil((Double_t) iStrip/(fNStripZ)) -1 ; | |
332 | ||
333 | // Absid for 8x2-strips. Looks nice :) | |
334 | absId = (module-1)*fNCristalsInModule + | |
335 | row * 2 + (col*fNCellsXInStrip + (icell - 1) / 2)*fNZ - (icell & 1 ? 1 : 0); | |
336 | ||
337 | } | |
bb5c37a5 | 338 | */ |
70a0fabe | 339 | |
340 | } | |
341 | ||
342 | //____________________________________________________________________________ | |
343 | void AliPHOSGeoUtils::RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const | |
344 | { | |
345 | //Evaluates RelId of the crystall with given coordinates | |
346 | ||
347 | Int_t absId ; | |
348 | RelPosToAbsId(module, x,z,absId) ; | |
349 | AbsToRelNumbering(absId,relId) ; | |
350 | } | |
351 | ||
352 | //____________________________________________________________________________ | |
353 | void AliPHOSGeoUtils::RelPosInAlice(Int_t id, TVector3 & pos ) const | |
354 | { | |
355 | // Converts the absolute numbering into the global ALICE coordinate system | |
356 | ||
357 | if (!gGeoManager){ | |
358 | printf("Geo manager not initialized\n"); | |
359 | abort(); | |
360 | } | |
361 | ||
362 | Int_t relid[4] ; | |
363 | ||
364 | AbsToRelNumbering(id , relid) ; | |
365 | ||
366 | //construct module name | |
70a0fabe | 367 | if(relid[1]==0){ //this is EMC |
368 | ||
bb5c37a5 | 369 | Double_t ps[3]= {0.0,-fCryStripShift,0.}; //Position incide the crystal |
70a0fabe | 370 | Double_t psC[3]={0.0,0.0,0.}; //Global position |
371 | ||
372 | //Shift and possibly apply misalignment corrections | |
373 | Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ- | |
374 | (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ; | |
bb5c37a5 | 375 | ps[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ; |
376 | ps[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ; | |
377 | ||
378 | Int_t mod = relid[0] ; | |
98082233 | 379 | const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ; |
bb5c37a5 | 380 | m2->LocalToMaster(ps,psC); |
70a0fabe | 381 | pos.SetXYZ(psC[0],psC[1],psC[2]) ; |
bb5c37a5 | 382 | |
70a0fabe | 383 | } |
384 | else{ | |
385 | //first calculate position with respect to CPV plain | |
386 | Int_t row = relid[2] ; //offset along x axis | |
387 | Int_t column = relid[3] ; //offset along z axis | |
388 | Double_t ps[3]= {0.0,fCPVBoxSizeY/2.,0.}; //Position on top of CPV | |
389 | Double_t psC[3]={0.0,0.0,0.}; //Global position | |
390 | pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect | |
391 | pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module | |
392 | ||
393 | //now apply possible shifts and rotations | |
98082233 | 394 | const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ; |
bb5c37a5 | 395 | m->LocalToMaster(ps,psC); |
70a0fabe | 396 | pos.SetXYZ(psC[0],psC[1],-psC[2]) ; |
397 | } | |
398 | } | |
399 | ||
400 | //____________________________________________________________________________ | |
401 | void AliPHOSGeoUtils::Local2Global(Int_t mod, Float_t x, Float_t z, | |
402 | TVector3& globalPosition) const | |
403 | { | |
70a0fabe | 404 | Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!! |
405 | Double_t posG[3] ; | |
98082233 | 406 | const TGeoHMatrix *mPHOS = GetMatrixForModule(mod) ; |
bb5c37a5 | 407 | mPHOS->LocalToMaster(posL,posG); |
70a0fabe | 408 | globalPosition.SetXYZ(posG[0],posG[1],posG[2]) ; |
409 | } | |
410 | //____________________________________________________________________________ | |
411 | void AliPHOSGeoUtils::Global2Local(TVector3& localPosition, | |
412 | const TVector3& globalPosition, | |
413 | Int_t module) const | |
414 | { | |
415 | // Transforms a global position to the local coordinate system | |
416 | // of the module | |
417 | //Return to PHOS local system | |
418 | Double_t posG[3]={globalPosition.X(),globalPosition.Y(),globalPosition.Z()} ; | |
419 | Double_t posL[3]={0.,0.,0.} ; | |
98082233 | 420 | const TGeoHMatrix *mPHOS = GetMatrixForModule(module) ; |
478420eb | 421 | if(mPHOS){ |
422 | mPHOS->MasterToLocal(posG,posL); | |
423 | localPosition.SetXYZ(posL[0],posL[1]+fCrystalShift,-posL[2]) ; | |
424 | } | |
425 | else{ | |
426 | localPosition.SetXYZ(999.,999.,999.) ; //module does not exist in given configuration | |
427 | } | |
70a0fabe | 428 | |
f4aea312 | 429 | } |
430 | //____________________________________________________________________________ | |
431 | Bool_t AliPHOSGeoUtils::GlobalPos2RelId(TVector3 & global, Int_t * relId){ | |
432 | //Converts position in global ALICE coordinates to relId | |
433 | //returns false if x,z coordinates are beyond PHOS | |
434 | //distande to PHOS surface is NOT calculated | |
435 | TVector3 loc ; | |
478420eb | 436 | for(Int_t mod=1; mod<=fNModules; mod++){ |
f4aea312 | 437 | Global2Local(loc,global,mod) ; |
438 | //If in Acceptance | |
439 | if((TMath::Abs(loc.Z())<fXtlArrSize[2]) && (TMath::Abs(loc.X())<fXtlArrSize[0])){ | |
440 | RelPosToRelId(mod,loc.X(),loc.Z(),relId); | |
441 | return kTRUE ; | |
442 | } | |
443 | } | |
444 | return kFALSE ; | |
445 | ||
70a0fabe | 446 | } |
447 | //____________________________________________________________________________ | |
448 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const TParticle * particle, | |
449 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
450 | { | |
451 | // Tells if a particle enters PHOS and evaluates hit position | |
452 | Double_t vtx[3]={particle->Vx(),particle->Vy(),particle->Vz()} ; | |
453 | return ImpactOnEmc(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x); | |
454 | } | |
455 | ||
456 | //____________________________________________________________________________ | |
457 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, Double_t theta, Double_t phi, | |
458 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
459 | { | |
460 | // calculates the impact coordinates on PHOS of a neutral particle | |
461 | // emitted in the vertex vtx[3] with direction vec(p) in the ALICE global coordinate system | |
462 | TVector3 p(TMath::Sin(theta)*TMath::Cos(phi),TMath::Sin(theta)*TMath::Sin(phi),TMath::Cos(theta)) ; | |
463 | return ImpactOnEmc(vtx,p,moduleNumber,z,x) ; | |
464 | ||
465 | } | |
466 | //____________________________________________________________________________ | |
467 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, const TVector3 &p, | |
468 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
469 | { | |
470 | // calculates the impact coordinates on PHOS of a neutral particle | |
471 | // emitted in the vertex vtx[3] with direction theta and phi in the ALICE global coordinate system | |
472 | TVector3 v(vtx[0],vtx[1],vtx[2]) ; | |
473 | ||
70a0fabe | 474 | for(Int_t imod=1; imod<=fNModules ; imod++){ |
475 | //create vector from (0,0,0) to center of crystal surface of imod module | |
476 | Double_t tmp[3]={0.,-fCrystalShift,0.} ; | |
477 | ||
98082233 | 478 | const TGeoHMatrix *m = GetMatrixForModule(imod) ; |
478420eb | 479 | if(!m) //module does not exist in given configuration |
480 | continue ; | |
70a0fabe | 481 | Double_t posG[3]={0.,0.,0.} ; |
bb5c37a5 | 482 | m->LocalToMaster(tmp,posG); |
70a0fabe | 483 | TVector3 n(posG[0],posG[1],posG[2]) ; |
484 | Double_t direction=n.Dot(p) ; | |
485 | if(direction<=0.) | |
486 | continue ; //momentum directed FROM module | |
487 | Double_t fr = (n.Mag2()-n.Dot(v))/direction ; | |
488 | //Calculate direction in module plain | |
489 | n-=v+fr*p ; | |
490 | n*=-1. ; | |
491 | if(TMath::Abs(TMath::Abs(n.Z())<fXtlArrSize[2]) && n.Pt()<fXtlArrSize[0]){ | |
492 | moduleNumber = imod ; | |
493 | z=n.Z() ; | |
494 | x=TMath::Sign(n.Pt(),n.X()) ; | |
495 | //no need to return to local system since we calcilated distance from module center | |
496 | //and tilts can not be significant. | |
497 | return kTRUE ; | |
498 | } | |
499 | } | |
500 | //Not in acceptance | |
501 | x=0; z=0 ; | |
502 | moduleNumber=0 ; | |
503 | return kFALSE ; | |
504 | ||
505 | } | |
70a0fabe | 506 | //____________________________________________________________________________ |
bcc9e89e | 507 | void AliPHOSGeoUtils::GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x,Float_t z, TVector3 &vInc) const { |
508 | //Calculates vector pointing from vertex to current poisition in module local frame | |
509 | //Note that PHOS local system and ALICE global have opposite z directions | |
70a0fabe | 510 | |
bcc9e89e | 511 | Global2Local(vInc,vtx,module) ; |
512 | vInc.SetXYZ(vInc.X()+x,vInc.Y(),vInc.Z()+z) ; | |
70a0fabe | 513 | } |
bb5c37a5 | 514 | //____________________________________________________________________________ |
98082233 | 515 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForModule(Int_t mod)const { |
bb5c37a5 | 516 | //Provides shift-rotation matrix for module mod |
bcc9e89e | 517 | |
bb5c37a5 | 518 | //If GeoManager exists, take matrixes from it |
519 | if(gGeoManager){ | |
520 | char path[255] ; | |
521 | sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",mod) ; | |
522 | // sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ; | |
523 | if (!gGeoManager->cd(path)){ | |
478420eb | 524 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
525 | return 0; | |
bb5c37a5 | 526 | } |
527 | return gGeoManager->GetCurrentMatrix(); | |
528 | } | |
529 | if(fEMCMatrix[mod-1]){ | |
530 | return fEMCMatrix[mod-1] ; | |
531 | } | |
532 | else{ | |
478420eb | 533 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
534 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
535 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
536 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
537 | return 0 ; | |
bb5c37a5 | 538 | } |
539 | return 0 ; | |
540 | } | |
541 | //____________________________________________________________________________ | |
98082233 | 542 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForStrip(Int_t mod, Int_t strip)const { |
bb5c37a5 | 543 | //Provides shift-rotation matrix for strip unit of the module mod |
544 | ||
545 | //If GeoManager exists, take matrixes from it | |
546 | if(gGeoManager){ | |
547 | char path[255] ; | |
548 | sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d",mod,strip) ; | |
549 | if (!gGeoManager->cd(path)){ | |
478420eb | 550 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
551 | return 0 ; | |
bb5c37a5 | 552 | } |
553 | return gGeoManager->GetCurrentMatrix(); | |
554 | } | |
555 | if(fStripMatrix[mod-1][strip-1]){ | |
556 | return fStripMatrix[mod-1][strip-1] ; | |
557 | } | |
558 | else{ | |
478420eb | 559 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
560 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
561 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
562 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
563 | return 0 ; | |
bb5c37a5 | 564 | } |
565 | return 0 ; | |
566 | } | |
567 | //____________________________________________________________________________ | |
98082233 | 568 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForCPV(Int_t mod)const { |
bb5c37a5 | 569 | //Provides shift-rotation matrix for CPV of the module mod |
570 | ||
571 | //If GeoManager exists, take matrixes from it | |
572 | if(gGeoManager){ | |
573 | char path[255] ; | |
574 | //now apply possible shifts and rotations | |
575 | sprintf(path,"/ALIC_1/PHOS_%d/PCPV_1",mod) ; | |
576 | if (!gGeoManager->cd(path)){ | |
478420eb | 577 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
578 | return 0 ; | |
bb5c37a5 | 579 | } |
580 | return gGeoManager->GetCurrentMatrix(); | |
581 | } | |
582 | if(fCPVMatrix[mod-1]){ | |
583 | return fCPVMatrix[mod-1] ; | |
584 | } | |
585 | else{ | |
478420eb | 586 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
587 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
588 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
589 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
590 | return 0 ; | |
bb5c37a5 | 591 | } |
592 | return 0 ; | |
593 | } | |
594 | //____________________________________________________________________________ | |
98082233 | 595 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForPHOS(Int_t mod)const { |
bb5c37a5 | 596 | //Provides shift-rotation matrix for PHOS (EMC+CPV) |
597 | ||
598 | //If GeoManager exists, take matrixes from it | |
599 | if(gGeoManager){ | |
600 | char path[255] ; | |
601 | sprintf(path,"/ALIC_1/PHOS_%d",mod) ; | |
602 | if (!gGeoManager->cd(path)){ | |
478420eb | 603 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
604 | return 0 ; | |
bb5c37a5 | 605 | } |
606 | return gGeoManager->GetCurrentMatrix(); | |
607 | } | |
608 | if(fPHOSMatrix[mod-1]){ | |
609 | return fPHOSMatrix[mod-1] ; | |
610 | } | |
611 | else{ | |
478420eb | 612 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
613 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
614 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
615 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
616 | return 0 ; | |
bb5c37a5 | 617 | } |
618 | return 0 ; | |
619 | } | |
620 | //____________________________________________________________________________ | |
98082233 | 621 | void AliPHOSGeoUtils::SetMisalMatrix(const TGeoHMatrix * m, Int_t mod){ |
bb5c37a5 | 622 | //Fills pointers to geo matrixes |
623 | ||
624 | fPHOSMatrix[mod]=m ; | |
98082233 | 625 | |
bb5c37a5 | 626 | //If modules does not exist, make sure all its matrixes are zero |
627 | if(m==NULL){ | |
628 | fEMCMatrix[mod]=NULL ; | |
629 | Int_t istrip=0 ; | |
630 | for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){ | |
631 | for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){ | |
632 | fStripMatrix[mod][istrip]=NULL ; | |
633 | } | |
634 | } | |
635 | fCPVMatrix[mod]=NULL ; | |
636 | return ; | |
637 | } | |
638 | ||
639 | //Calculate maxtrixes for PTII | |
640 | if(!fMisalArray) | |
641 | fMisalArray = new TClonesArray("TGeoHMatrix",1120+10) ; | |
642 | Int_t nr = fMisalArray->GetEntriesFast() ; | |
643 | Double_t rotEMC[9]={1.,0.,0.,0.,0.,-1.,0.,1.,0.} ; | |
644 | const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ; | |
645 | const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ; | |
646 | const Float_t * covparams = fGeometryEMCA->GetAlCoverParams() ; | |
647 | const Float_t * warmcov = fGeometryEMCA->GetWarmAlCoverHalfSize() ; | |
648 | Float_t z = fGeometryCPV->GetCPVBoxSize(1) / 2. - warmcov[2] + covparams[3]-inthermo[1] ; | |
649 | Double_t locTII[3]={0.,0.,z} ; | |
650 | Double_t globTII[3] ; | |
651 | ||
652 | TGeoHMatrix * mTII = new((*fMisalArray)[nr])TGeoHMatrix() ; | |
98082233 | 653 | nr++ ; |
bb5c37a5 | 654 | mTII->SetRotation(rotEMC) ; |
655 | mTII->MultiplyLeft(fPHOSMatrix[mod]) ; | |
656 | fPHOSMatrix[mod]->LocalToMaster(locTII,globTII) ; | |
657 | mTII->SetTranslation(globTII) ; | |
658 | fEMCMatrix[mod]=mTII ; | |
659 | ||
660 | //Now calculate ideal matrixes for strip misalignment. | |
661 | //For the moment we can not store them in ESDHeader | |
662 | ||
663 | Double_t loc[3]={0.,inthermo[1] - strip[1],0.} ; | |
664 | Double_t glob[3] ; | |
665 | ||
666 | Int_t istrip=0 ; | |
667 | for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){ | |
668 | loc[0] = (2*irow + 1 - fGeometryEMCA->GetNStripX())* strip[0] ; | |
669 | for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){ | |
670 | loc[2] = (2*icol + 1 - fGeometryEMCA->GetNStripZ()) * strip[2] ; | |
671 | fEMCMatrix[mod]->LocalToMaster(loc,glob) ; | |
672 | TGeoHMatrix * mSTR = new((*fMisalArray)[nr])TGeoHMatrix(*(fEMCMatrix[mod])) ; //Use same rotation as PHOS module | |
98082233 | 673 | nr++ ; |
bb5c37a5 | 674 | mSTR->SetTranslation(glob) ; |
675 | fStripMatrix[mod][istrip]=mSTR ; | |
bb5c37a5 | 676 | istrip++; |
677 | } | |
678 | } | |
679 | ||
680 | //Now calculate CPV matrixes | |
681 | const Float_t * emcParams = fGeometryEMCA->GetEMCParams() ; | |
682 | Double_t globCPV[3] ; | |
683 | Double_t locCPV[3]={0.,0.,- emcParams[3]} ; | |
684 | Double_t rot[9]={1.,0.,0.,0.,0.,1.,0.,-1.,0.} ; | |
685 | ||
686 | TGeoHMatrix * mCPV = new((*fMisalArray)[nr])TGeoHMatrix() ; | |
98082233 | 687 | nr++ ; |
bb5c37a5 | 688 | mCPV->SetRotation(rot) ; |
689 | mCPV->MultiplyLeft(fPHOSMatrix[mod]) ; | |
690 | mCPV->ReflectY(kFALSE) ; | |
691 | fPHOSMatrix[mod]->LocalToMaster(locCPV,globCPV) ; | |
692 | mCPV->SetTranslation(globCPV) ; | |
693 | fCPVMatrix[mod]=mCPV ; | |
694 | ||
695 | } | |
696 |