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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 | |
6ba1dd81 | 59 | |
60 | fXtlArrSize[0]=0.; | |
61 | fXtlArrSize[1]=0.; | |
62 | fXtlArrSize[2]=0.; | |
63 | ||
64 | for(Int_t mod=0; mod<5; mod++){ | |
65 | fEMCMatrix[mod]=0 ; | |
66 | for(Int_t istrip=0; istrip<224; istrip++) | |
67 | fStripMatrix[mod][istrip]=0 ; | |
68 | fCPVMatrix[mod]=0; | |
69 | fPHOSMatrix[mod]=0 ; | |
70 | } | |
71 | ||
70a0fabe | 72 | } |
73 | ||
74 | //____________________________________________________________________________ | |
75 | AliPHOSGeoUtils::AliPHOSGeoUtils(const AliPHOSGeoUtils & rhs) | |
76 | : TNamed(rhs), | |
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 | Fatal("cpy ctor", "not implemented") ; | |
85 | } | |
86 | ||
87 | //____________________________________________________________________________ | |
88 | AliPHOSGeoUtils::AliPHOSGeoUtils(const Text_t* name, const Text_t* title) | |
89 | : TNamed(name, title), | |
bcc9e89e | 90 | fGeometryEMCA(0x0),fGeometryCPV(0x0),fGeometrySUPP(0x0), |
70a0fabe | 91 | fNModules(0),fNCristalsInModule(0),fNPhi(0),fNZ(0), |
92 | fNumberOfCPVPadsPhi(0),fNumberOfCPVPadsZ(0), | |
93 | fNCellsXInStrip(0),fNCellsZInStrip(0),fNStripZ(0), | |
bb5c37a5 | 94 | fCrystalShift(0.),fCryCellShift(0.),fCryStripShift(0.),fCellStep(0.), |
95 | fPadSizePhi(0.),fPadSizeZ(0.),fCPVBoxSizeY(0.),fMisalArray(0x0) | |
70a0fabe | 96 | { |
97 | // ctor only for normal usage | |
bcc9e89e | 98 | |
99 | fGeometryEMCA = new AliPHOSEMCAGeometry() ; | |
100 | fGeometryCPV = new AliPHOSCPVGeometry() ; | |
101 | fGeometrySUPP = new AliPHOSSupportGeometry() ; | |
102 | ||
103 | fNModules = 5; | |
104 | fNPhi = fGeometryEMCA->GetNPhi() ; | |
105 | fNZ = fGeometryEMCA->GetNZ() ; | |
106 | fNCristalsInModule = fNPhi*fNZ ; | |
107 | fNCellsXInStrip= fGeometryEMCA->GetNCellsXInStrip() ; | |
108 | fNCellsZInStrip= fGeometryEMCA->GetNCellsZInStrip() ; | |
109 | fNStripZ = fGeometryEMCA->GetNStripZ() ; | |
110 | fXtlArrSize[0]=fGeometryEMCA->GetInnerThermoHalfSize()[0] ; //Wery close to the zise of the Xtl set | |
111 | fXtlArrSize[1]=fGeometryEMCA->GetInnerThermoHalfSize()[1] ; //Wery close to the zise of the Xtl set | |
112 | fXtlArrSize[2]=fGeometryEMCA->GetInnerThermoHalfSize()[2] ; //Wery close to the zise of the Xtl set | |
113 | ||
114 | //calculate offset to crystal surface | |
a2bb6de5 | 115 | const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ; |
116 | const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ; | |
117 | const Float_t * splate = fGeometryEMCA->GetSupportPlateHalfSize(); | |
118 | const Float_t * crystal = fGeometryEMCA->GetCrystalHalfSize() ; | |
119 | const Float_t * pin = fGeometryEMCA->GetAPDHalfSize() ; | |
120 | const Float_t * preamp = fGeometryEMCA->GetPreampHalfSize() ; | |
bcc9e89e | 121 | fCrystalShift=-inthermo[1]+strip[1]+splate[1]+crystal[1]-fGeometryEMCA->GetAirGapLed()/2.+pin[1]+preamp[1] ; |
122 | fCryCellShift=crystal[1]-(fGeometryEMCA->GetAirGapLed()-2*pin[1]-2*preamp[1])/2; | |
bb5c37a5 | 123 | fCryStripShift=fCryCellShift+splate[1] ; |
bcc9e89e | 124 | fCellStep = 2.*fGeometryEMCA->GetAirCellHalfSize()[0] ; |
125 | ||
bcc9e89e | 126 | fNumberOfCPVPadsPhi = fGeometryCPV->GetNumberOfCPVPadsPhi() ; |
127 | fNumberOfCPVPadsZ = fGeometryCPV->GetNumberOfCPVPadsZ() ; | |
128 | fPadSizePhi = fGeometryCPV->GetCPVPadSizePhi() ; | |
129 | fPadSizeZ = fGeometryCPV->GetCPVPadSizeZ() ; | |
130 | fCPVBoxSizeY= fGeometryCPV->GetCPVBoxSize(1) ; | |
bb5c37a5 | 131 | |
132 | for(Int_t mod=0; mod<5; mod++){ | |
133 | fEMCMatrix[mod]=0 ; | |
134 | for(Int_t istrip=0; istrip<224; istrip++) | |
135 | fStripMatrix[mod][istrip]=0 ; | |
136 | fCPVMatrix[mod]=0; | |
137 | fPHOSMatrix[mod]=0 ; | |
138 | } | |
139 | ||
70a0fabe | 140 | } |
141 | ||
142 | //____________________________________________________________________________ | |
143 | AliPHOSGeoUtils & AliPHOSGeoUtils::operator = (const AliPHOSGeoUtils & /*rvalue*/) { | |
bcc9e89e | 144 | |
145 | Fatal("assignment operator", "not implemented") ; | |
70a0fabe | 146 | return *this ; |
147 | } | |
148 | ||
149 | //____________________________________________________________________________ | |
150 | AliPHOSGeoUtils::~AliPHOSGeoUtils(void) | |
151 | { | |
152 | // dtor | |
bcc9e89e | 153 | if(fGeometryEMCA){ |
154 | delete fGeometryEMCA; fGeometryEMCA = 0 ; | |
155 | } | |
156 | if(fGeometryCPV){ | |
157 | delete fGeometryCPV; fGeometryCPV=0 ; | |
158 | } | |
159 | if(fGeometrySUPP){ | |
160 | delete fGeometrySUPP ; fGeometrySUPP=0 ; | |
161 | } | |
bb5c37a5 | 162 | if(fMisalArray){ |
163 | delete fMisalArray; fMisalArray=0 ; | |
164 | } | |
3eef419b | 165 | |
ea98ab56 | 166 | for(Int_t mod=0; mod<5; mod++){ |
167 | delete fEMCMatrix[mod] ; | |
168 | for(Int_t istrip=0; istrip<224; istrip++) | |
169 | delete fStripMatrix[mod][istrip]; | |
170 | delete fCPVMatrix[mod]; | |
79b175e1 | 171 | delete fPHOSMatrix[mod]; |
ea98ab56 | 172 | } |
70a0fabe | 173 | } |
174 | //____________________________________________________________________________ | |
175 | Bool_t AliPHOSGeoUtils::AbsToRelNumbering(Int_t absId, Int_t * relid) const | |
176 | { | |
177 | // Converts the absolute numbering into the following array | |
178 | // relid[0] = PHOS Module number 1:fNModules | |
179 | // relid[1] = 0 if PbW04 | |
180 | // = -1 if CPV | |
181 | // relid[2] = Row number inside a PHOS module | |
182 | // relid[3] = Column number inside a PHOS module | |
183 | ||
184 | Float_t id = absId ; | |
185 | ||
186 | Int_t phosmodulenumber = (Int_t)TMath:: Ceil( id / fNCristalsInModule ) ; | |
187 | ||
188 | if ( phosmodulenumber > fNModules ) { // it is a CPV pad | |
189 | ||
190 | id -= fNPhi * fNZ * fNModules ; | |
191 | Float_t nCPV = fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ ; | |
192 | relid[0] = (Int_t) TMath::Ceil( id / nCPV ) ; | |
193 | relid[1] = -1 ; | |
194 | id -= ( relid[0] - 1 ) * nCPV ; | |
195 | relid[2] = (Int_t) TMath::Ceil( id / fNumberOfCPVPadsZ ) ; | |
196 | relid[3] = (Int_t) ( id - ( relid[2] - 1 ) * fNumberOfCPVPadsZ ) ; | |
197 | } | |
198 | else { // it is a PW04 crystal | |
199 | ||
200 | relid[0] = phosmodulenumber ; | |
201 | relid[1] = 0 ; | |
202 | id -= ( phosmodulenumber - 1 ) * fNPhi * fNZ ; | |
203 | relid[2] = (Int_t)TMath::Ceil( id / fNZ ) ; | |
204 | relid[3] = (Int_t)( id - ( relid[2] - 1 ) * fNZ ) ; | |
205 | } | |
206 | return kTRUE ; | |
207 | } | |
208 | //____________________________________________________________________________ | |
209 | Bool_t AliPHOSGeoUtils::RelToAbsNumbering(const Int_t * relid, Int_t & absId) const | |
210 | { | |
211 | // Converts the relative numbering into the absolute numbering | |
212 | // EMCA crystals: | |
213 | // absId = from 1 to fNModules * fNPhi * fNZ | |
214 | // CPV pad: | |
215 | // absId = from N(total PHOS crystals) + 1 | |
216 | // to NCPVModules * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ | |
217 | ||
218 | if ( relid[1] == 0 ) { // it is a Phos crystal | |
219 | absId = | |
220 | ( relid[0] - 1 ) * fNPhi * fNZ // the offset of PHOS modules | |
221 | + ( relid[2] - 1 ) * fNZ // the offset along phi | |
222 | + relid[3] ; // the offset along z | |
223 | } | |
224 | else { // it is a CPV pad | |
225 | absId = fNPhi * fNZ * fNModules // the offset to separate EMCA crystals from CPV pads | |
226 | + ( relid[0] - 1 ) * fNumberOfCPVPadsPhi * fNumberOfCPVPadsZ // the pads offset of PHOS modules | |
227 | + ( relid[2] - 1 ) * fNumberOfCPVPadsZ // the pads offset of a CPV row | |
228 | + relid[3] ; // the column number | |
229 | } | |
230 | ||
231 | return kTRUE ; | |
232 | } | |
233 | ||
234 | //____________________________________________________________________________ | |
235 | void AliPHOSGeoUtils::RelPosInModule(const Int_t * relid, Float_t & x, Float_t & z) const | |
236 | { | |
237 | // Converts the relative numbering into the local PHOS-module (x, z) coordinates | |
238 | ||
70a0fabe | 239 | if(relid[1]==0){ //this is PHOS |
240 | ||
241 | Double_t pos[3]= {0.0,-fCryCellShift,0.}; //Position incide the crystal | |
242 | Double_t posC[3]={0.0,0.0,0.}; //Global position | |
243 | ||
244 | //Shift and possibly apply misalignment corrections | |
245 | Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ- | |
246 | (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ; | |
bb5c37a5 | 247 | pos[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ; |
248 | pos[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ; | |
249 | ||
250 | Int_t mod = relid[0] ; | |
98082233 | 251 | const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ; |
bb5c37a5 | 252 | m2->LocalToMaster(pos,posC); |
253 | ||
70a0fabe | 254 | //Return to PHOS local system |
bb5c37a5 | 255 | Double_t posL2[3]={posC[0],posC[1],posC[2]}; |
98082233 | 256 | const TGeoHMatrix *mPHOS2 = GetMatrixForModule(mod) ; |
bb5c37a5 | 257 | mPHOS2->MasterToLocal(posC,posL2); |
258 | x=posL2[0] ; | |
259 | z=-posL2[2]; | |
70a0fabe | 260 | return ; |
261 | } | |
262 | else{//CPV | |
263 | //first calculate position with respect to CPV plain | |
264 | Int_t row = relid[2] ; //offset along x axis | |
265 | Int_t column = relid[3] ; //offset along z axis | |
266 | Double_t pos[3]= {0.0,0.0,0.}; //Position incide the CPV printed circuit | |
267 | Double_t posC[3]={0.0,0.0,0.}; //Global position | |
268 | pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect | |
269 | pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module | |
270 | ||
271 | //now apply possible shifts and rotations | |
98082233 | 272 | const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ; |
bb5c37a5 | 273 | m->LocalToMaster(pos,posC); |
70a0fabe | 274 | //Return to PHOS local system |
275 | Double_t posL[3]={0.,0.,0.,} ; | |
98082233 | 276 | const TGeoHMatrix *mPHOS = GetMatrixForPHOS(relid[0]) ; |
bb5c37a5 | 277 | mPHOS->MasterToLocal(posC,posL); |
70a0fabe | 278 | x=posL[0] ; |
279 | z=posL[1]; | |
280 | return ; | |
281 | ||
282 | } | |
283 | ||
284 | } | |
285 | //____________________________________________________________________________ | |
286 | void AliPHOSGeoUtils::RelPosToAbsId(Int_t module, Double_t x, Double_t z, Int_t & absId) const | |
287 | { | |
288 | // converts local PHOS-module (x, z) coordinates to absId | |
289 | ||
bb5c37a5 | 290 | //Calculate AbsId using ideal geometry. Should be sufficient for primary particles calculation |
291 | //(the only place where this method used currently) | |
292 | Int_t relid[4]={module,0,1,1} ; | |
293 | relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) ); | |
478420eb | 294 | relid[3] = fNZ+1-static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ; |
bb5c37a5 | 295 | if(relid[2]<1)relid[2]=1 ; |
296 | if(relid[3]<1)relid[3]=1 ; | |
297 | if(relid[2]>fNPhi)relid[2]=fNPhi ; | |
298 | if(relid[3]>fNZ)relid[3]=fNZ ; | |
299 | RelToAbsNumbering(relid,absId) ; | |
300 | ||
301 | /* | |
70a0fabe | 302 | //find Global position |
303 | if (!gGeoManager){ | |
304 | printf("Geo manager not initialized\n"); | |
305 | abort() ; | |
306 | } | |
307 | Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!! | |
308 | Double_t posG[3] ; | |
309 | char path[100] ; | |
310 | sprintf(path,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",module) ; | |
311 | if (!gGeoManager->cd(path)){ | |
312 | printf("Geo manager can not find path \n"); | |
313 | abort() ; | |
314 | } | |
315 | TGeoHMatrix *mPHOS = gGeoManager->GetCurrentMatrix(); | |
316 | if (mPHOS){ | |
317 | mPHOS->LocalToMaster(posL,posG); | |
318 | } | |
319 | else{ | |
320 | printf("Geo matrixes are not loaded \n") ; | |
321 | abort() ; | |
322 | } | |
323 | ||
324 | Int_t relid[4] ; | |
325 | gGeoManager->FindNode(posG[0],posG[1],posG[2]) ; | |
326 | //Check that path contains PSTR and extract strip number | |
327 | TString cpath(gGeoManager->GetPath()) ; | |
328 | Int_t indx = cpath.Index("PCEL") ; | |
329 | if(indx==-1){ //for the few events when particle hits between srips use ideal geometry | |
330 | relid[0] = module ; | |
331 | relid[1] = 0 ; | |
332 | relid[2] = static_cast<Int_t>(TMath::Ceil( x/ fCellStep + fNPhi / 2.) ); | |
333 | relid[3] = static_cast<Int_t>(TMath::Ceil(-z/ fCellStep + fNZ / 2.) ) ; | |
334 | if(relid[2]<1)relid[2]=1 ; | |
335 | if(relid[3]<1)relid[3]=1 ; | |
336 | if(relid[2]>fNPhi)relid[2]=fNPhi ; | |
337 | if(relid[3]>fNZ)relid[3]=fNZ ; | |
338 | RelToAbsNumbering(relid,absId) ; | |
339 | } | |
340 | else{ | |
341 | Int_t indx2 = cpath.Index("/",indx) ; | |
342 | if(indx2==-1) | |
343 | indx2=cpath.Length() ; | |
344 | TString cell=cpath(indx+5,indx2-indx-5) ; | |
345 | Int_t icell=cell.Atoi() ; | |
346 | indx = cpath.Index("PSTR") ; | |
347 | indx2 = cpath.Index("/",indx) ; | |
348 | TString strip=cpath(indx+5,indx2-indx-5) ; | |
349 | Int_t iStrip = strip.Atoi() ; | |
350 | ||
351 | Int_t row = fNStripZ - (iStrip - 1) % (fNStripZ) ; | |
352 | Int_t col = (Int_t) TMath::Ceil((Double_t) iStrip/(fNStripZ)) -1 ; | |
353 | ||
354 | // Absid for 8x2-strips. Looks nice :) | |
355 | absId = (module-1)*fNCristalsInModule + | |
356 | row * 2 + (col*fNCellsXInStrip + (icell - 1) / 2)*fNZ - (icell & 1 ? 1 : 0); | |
357 | ||
358 | } | |
bb5c37a5 | 359 | */ |
70a0fabe | 360 | |
361 | } | |
362 | ||
363 | //____________________________________________________________________________ | |
364 | void AliPHOSGeoUtils::RelPosToRelId(Int_t module, Double_t x, Double_t z, Int_t * relId) const | |
365 | { | |
366 | //Evaluates RelId of the crystall with given coordinates | |
367 | ||
368 | Int_t absId ; | |
369 | RelPosToAbsId(module, x,z,absId) ; | |
370 | AbsToRelNumbering(absId,relId) ; | |
371 | } | |
372 | ||
373 | //____________________________________________________________________________ | |
374 | void AliPHOSGeoUtils::RelPosInAlice(Int_t id, TVector3 & pos ) const | |
375 | { | |
376 | // Converts the absolute numbering into the global ALICE coordinate system | |
377 | ||
378 | if (!gGeoManager){ | |
379 | printf("Geo manager not initialized\n"); | |
380 | abort(); | |
381 | } | |
382 | ||
383 | Int_t relid[4] ; | |
384 | ||
385 | AbsToRelNumbering(id , relid) ; | |
386 | ||
387 | //construct module name | |
70a0fabe | 388 | if(relid[1]==0){ //this is EMC |
389 | ||
bb5c37a5 | 390 | Double_t ps[3]= {0.0,-fCryStripShift,0.}; //Position incide the crystal |
70a0fabe | 391 | Double_t psC[3]={0.0,0.0,0.}; //Global position |
392 | ||
393 | //Shift and possibly apply misalignment corrections | |
394 | Int_t strip=1+((Int_t) TMath::Ceil((Double_t)relid[2]/fNCellsXInStrip))*fNStripZ- | |
395 | (Int_t) TMath::Ceil((Double_t)relid[3]/fNCellsZInStrip) ; | |
bb5c37a5 | 396 | ps[0]=((relid[2]-1)%fNCellsXInStrip-fNCellsXInStrip/2+0.5)*fCellStep ; |
397 | ps[2]=(-(relid[3]-1)%fNCellsZInStrip+fNCellsZInStrip/2-0.5)*fCellStep ; | |
398 | ||
399 | Int_t mod = relid[0] ; | |
98082233 | 400 | const TGeoHMatrix * m2 = GetMatrixForStrip(mod, strip) ; |
bb5c37a5 | 401 | m2->LocalToMaster(ps,psC); |
70a0fabe | 402 | pos.SetXYZ(psC[0],psC[1],psC[2]) ; |
bb5c37a5 | 403 | |
70a0fabe | 404 | } |
405 | else{ | |
406 | //first calculate position with respect to CPV plain | |
407 | Int_t row = relid[2] ; //offset along x axis | |
408 | Int_t column = relid[3] ; //offset along z axis | |
409 | Double_t ps[3]= {0.0,fCPVBoxSizeY/2.,0.}; //Position on top of CPV | |
410 | Double_t psC[3]={0.0,0.0,0.}; //Global position | |
411 | pos[0] = - ( fNumberOfCPVPadsPhi/2. - row - 0.5 ) * fPadSizePhi ; // position of pad with respect | |
412 | pos[2] = - ( fNumberOfCPVPadsZ /2. - column - 0.5 ) * fPadSizeZ ; // of center of PHOS module | |
413 | ||
414 | //now apply possible shifts and rotations | |
98082233 | 415 | const TGeoHMatrix *m = GetMatrixForCPV(relid[0]) ; |
bb5c37a5 | 416 | m->LocalToMaster(ps,psC); |
70a0fabe | 417 | pos.SetXYZ(psC[0],psC[1],-psC[2]) ; |
418 | } | |
419 | } | |
420 | ||
421 | //____________________________________________________________________________ | |
422 | void AliPHOSGeoUtils::Local2Global(Int_t mod, Float_t x, Float_t z, | |
423 | TVector3& globalPosition) const | |
424 | { | |
70a0fabe | 425 | Double_t posL[3]={x,-fCrystalShift,-z} ; //Only for EMC!!! |
426 | Double_t posG[3] ; | |
98082233 | 427 | const TGeoHMatrix *mPHOS = GetMatrixForModule(mod) ; |
bb5c37a5 | 428 | mPHOS->LocalToMaster(posL,posG); |
70a0fabe | 429 | globalPosition.SetXYZ(posG[0],posG[1],posG[2]) ; |
430 | } | |
431 | //____________________________________________________________________________ | |
432 | void AliPHOSGeoUtils::Global2Local(TVector3& localPosition, | |
433 | const TVector3& globalPosition, | |
434 | Int_t module) const | |
435 | { | |
436 | // Transforms a global position to the local coordinate system | |
437 | // of the module | |
438 | //Return to PHOS local system | |
439 | Double_t posG[3]={globalPosition.X(),globalPosition.Y(),globalPosition.Z()} ; | |
440 | Double_t posL[3]={0.,0.,0.} ; | |
98082233 | 441 | const TGeoHMatrix *mPHOS = GetMatrixForModule(module) ; |
478420eb | 442 | if(mPHOS){ |
443 | mPHOS->MasterToLocal(posG,posL); | |
444 | localPosition.SetXYZ(posL[0],posL[1]+fCrystalShift,-posL[2]) ; | |
445 | } | |
446 | else{ | |
447 | localPosition.SetXYZ(999.,999.,999.) ; //module does not exist in given configuration | |
448 | } | |
70a0fabe | 449 | |
f4aea312 | 450 | } |
451 | //____________________________________________________________________________ | |
452 | Bool_t AliPHOSGeoUtils::GlobalPos2RelId(TVector3 & global, Int_t * relId){ | |
453 | //Converts position in global ALICE coordinates to relId | |
454 | //returns false if x,z coordinates are beyond PHOS | |
455 | //distande to PHOS surface is NOT calculated | |
456 | TVector3 loc ; | |
478420eb | 457 | for(Int_t mod=1; mod<=fNModules; mod++){ |
f4aea312 | 458 | Global2Local(loc,global,mod) ; |
459 | //If in Acceptance | |
460 | if((TMath::Abs(loc.Z())<fXtlArrSize[2]) && (TMath::Abs(loc.X())<fXtlArrSize[0])){ | |
461 | RelPosToRelId(mod,loc.X(),loc.Z(),relId); | |
462 | return kTRUE ; | |
463 | } | |
464 | } | |
465 | return kFALSE ; | |
466 | ||
70a0fabe | 467 | } |
468 | //____________________________________________________________________________ | |
469 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const TParticle * particle, | |
470 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
471 | { | |
472 | // Tells if a particle enters PHOS and evaluates hit position | |
473 | Double_t vtx[3]={particle->Vx(),particle->Vy(),particle->Vz()} ; | |
474 | return ImpactOnEmc(vtx,particle->Theta(),particle->Phi(),moduleNumber,z,x); | |
475 | } | |
476 | ||
477 | //____________________________________________________________________________ | |
478 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, Double_t theta, Double_t phi, | |
479 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
480 | { | |
481 | // calculates the impact coordinates on PHOS of a neutral particle | |
482 | // emitted in the vertex vtx[3] with direction vec(p) in the ALICE global coordinate system | |
483 | TVector3 p(TMath::Sin(theta)*TMath::Cos(phi),TMath::Sin(theta)*TMath::Sin(phi),TMath::Cos(theta)) ; | |
484 | return ImpactOnEmc(vtx,p,moduleNumber,z,x) ; | |
485 | ||
486 | } | |
487 | //____________________________________________________________________________ | |
488 | Bool_t AliPHOSGeoUtils::ImpactOnEmc(const Double_t * vtx, const TVector3 &p, | |
489 | Int_t & moduleNumber, Double_t & z, Double_t & x) const | |
490 | { | |
491 | // calculates the impact coordinates on PHOS of a neutral particle | |
492 | // emitted in the vertex vtx[3] with direction theta and phi in the ALICE global coordinate system | |
493 | TVector3 v(vtx[0],vtx[1],vtx[2]) ; | |
494 | ||
70a0fabe | 495 | for(Int_t imod=1; imod<=fNModules ; imod++){ |
496 | //create vector from (0,0,0) to center of crystal surface of imod module | |
497 | Double_t tmp[3]={0.,-fCrystalShift,0.} ; | |
498 | ||
98082233 | 499 | const TGeoHMatrix *m = GetMatrixForModule(imod) ; |
478420eb | 500 | if(!m) //module does not exist in given configuration |
501 | continue ; | |
70a0fabe | 502 | Double_t posG[3]={0.,0.,0.} ; |
bb5c37a5 | 503 | m->LocalToMaster(tmp,posG); |
70a0fabe | 504 | TVector3 n(posG[0],posG[1],posG[2]) ; |
505 | Double_t direction=n.Dot(p) ; | |
506 | if(direction<=0.) | |
507 | continue ; //momentum directed FROM module | |
508 | Double_t fr = (n.Mag2()-n.Dot(v))/direction ; | |
509 | //Calculate direction in module plain | |
510 | n-=v+fr*p ; | |
511 | n*=-1. ; | |
512 | if(TMath::Abs(TMath::Abs(n.Z())<fXtlArrSize[2]) && n.Pt()<fXtlArrSize[0]){ | |
513 | moduleNumber = imod ; | |
514 | z=n.Z() ; | |
515 | x=TMath::Sign(n.Pt(),n.X()) ; | |
516 | //no need to return to local system since we calcilated distance from module center | |
517 | //and tilts can not be significant. | |
518 | return kTRUE ; | |
519 | } | |
520 | } | |
521 | //Not in acceptance | |
522 | x=0; z=0 ; | |
523 | moduleNumber=0 ; | |
524 | return kFALSE ; | |
525 | ||
526 | } | |
70a0fabe | 527 | //____________________________________________________________________________ |
bcc9e89e | 528 | void AliPHOSGeoUtils::GetIncidentVector(const TVector3 &vtx, Int_t module, Float_t x,Float_t z, TVector3 &vInc) const { |
529 | //Calculates vector pointing from vertex to current poisition in module local frame | |
530 | //Note that PHOS local system and ALICE global have opposite z directions | |
70a0fabe | 531 | |
bcc9e89e | 532 | Global2Local(vInc,vtx,module) ; |
533 | vInc.SetXYZ(vInc.X()+x,vInc.Y(),vInc.Z()+z) ; | |
70a0fabe | 534 | } |
bb5c37a5 | 535 | //____________________________________________________________________________ |
98082233 | 536 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForModule(Int_t mod)const { |
bb5c37a5 | 537 | //Provides shift-rotation matrix for module mod |
bcc9e89e | 538 | |
bb5c37a5 | 539 | //If GeoManager exists, take matrixes from it |
540 | if(gGeoManager){ | |
541 | char path[255] ; | |
14895588 | 542 | snprintf(path,255,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1",mod) ; |
bb5c37a5 | 543 | // sprintf(path,"/ALIC_1/PHOS_%d",relid[0]) ; |
544 | if (!gGeoManager->cd(path)){ | |
478420eb | 545 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
546 | return 0; | |
bb5c37a5 | 547 | } |
548 | return gGeoManager->GetCurrentMatrix(); | |
549 | } | |
550 | if(fEMCMatrix[mod-1]){ | |
551 | return fEMCMatrix[mod-1] ; | |
552 | } | |
553 | else{ | |
478420eb | 554 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
555 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
556 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
557 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
558 | return 0 ; | |
bb5c37a5 | 559 | } |
560 | return 0 ; | |
561 | } | |
562 | //____________________________________________________________________________ | |
98082233 | 563 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForStrip(Int_t mod, Int_t strip)const { |
bb5c37a5 | 564 | //Provides shift-rotation matrix for strip unit of the module mod |
565 | ||
566 | //If GeoManager exists, take matrixes from it | |
567 | if(gGeoManager){ | |
568 | char path[255] ; | |
14895588 | 569 | snprintf(path,255,"/ALIC_1/PHOS_%d/PEMC_1/PCOL_1/PTIO_1/PCOR_1/PAGA_1/PTII_1/PSTR_%d",mod,strip) ; |
bb5c37a5 | 570 | if (!gGeoManager->cd(path)){ |
478420eb | 571 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
572 | return 0 ; | |
bb5c37a5 | 573 | } |
574 | return gGeoManager->GetCurrentMatrix(); | |
575 | } | |
576 | if(fStripMatrix[mod-1][strip-1]){ | |
577 | return fStripMatrix[mod-1][strip-1] ; | |
578 | } | |
579 | else{ | |
478420eb | 580 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
581 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
582 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
583 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
584 | return 0 ; | |
bb5c37a5 | 585 | } |
586 | return 0 ; | |
587 | } | |
588 | //____________________________________________________________________________ | |
98082233 | 589 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForCPV(Int_t mod)const { |
bb5c37a5 | 590 | //Provides shift-rotation matrix for CPV of the module mod |
591 | ||
592 | //If GeoManager exists, take matrixes from it | |
593 | if(gGeoManager){ | |
594 | char path[255] ; | |
595 | //now apply possible shifts and rotations | |
14895588 | 596 | snprintf(path,255,"/ALIC_1/PHOS_%d/PCPV_1",mod) ; |
bb5c37a5 | 597 | if (!gGeoManager->cd(path)){ |
478420eb | 598 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
599 | return 0 ; | |
bb5c37a5 | 600 | } |
601 | return gGeoManager->GetCurrentMatrix(); | |
602 | } | |
603 | if(fCPVMatrix[mod-1]){ | |
604 | return fCPVMatrix[mod-1] ; | |
605 | } | |
606 | else{ | |
478420eb | 607 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
608 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
609 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
610 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
611 | return 0 ; | |
bb5c37a5 | 612 | } |
613 | return 0 ; | |
614 | } | |
615 | //____________________________________________________________________________ | |
98082233 | 616 | const TGeoHMatrix * AliPHOSGeoUtils::GetMatrixForPHOS(Int_t mod)const { |
bb5c37a5 | 617 | //Provides shift-rotation matrix for PHOS (EMC+CPV) |
618 | ||
619 | //If GeoManager exists, take matrixes from it | |
620 | if(gGeoManager){ | |
6ba1dd81 | 621 | |
bb5c37a5 | 622 | char path[255] ; |
14895588 | 623 | snprintf(path,255,"/ALIC_1/PHOS_%d",mod) ; |
624 | ||
bb5c37a5 | 625 | if (!gGeoManager->cd(path)){ |
478420eb | 626 | AliWarning(Form("Geo manager can not find path %s \n",path)); |
627 | return 0 ; | |
bb5c37a5 | 628 | } |
629 | return gGeoManager->GetCurrentMatrix(); | |
630 | } | |
631 | if(fPHOSMatrix[mod-1]){ | |
632 | return fPHOSMatrix[mod-1] ; | |
633 | } | |
634 | else{ | |
478420eb | 635 | AliWarning("Can not find PHOS misalignment matrixes\n") ; |
636 | AliWarning("Either import TGeoManager from geometry.root or \n"); | |
637 | AliWarning("read stored matrixes from AliESD Header: \n") ; | |
638 | AliWarning("AliPHOSGeoUtils::SetMisalMatrixes(header->GetPHOSMisalMatrix()) \n") ; | |
639 | return 0 ; | |
bb5c37a5 | 640 | } |
641 | return 0 ; | |
642 | } | |
643 | //____________________________________________________________________________ | |
98082233 | 644 | void AliPHOSGeoUtils::SetMisalMatrix(const TGeoHMatrix * m, Int_t mod){ |
bb5c37a5 | 645 | //Fills pointers to geo matrixes |
646 | ||
79b175e1 | 647 | if(fPHOSMatrix[mod]){ //have been set already. Can not be changed any more |
648 | return ; | |
649 | } | |
0e1c4f91 | 650 | if(m==NULL) //Matrix for non-existing modules? Remain zero, no need to re-set |
651 | return ; | |
79b175e1 | 652 | fPHOSMatrix[mod]= new TGeoHMatrix(*m) ; |
d3506595 | 653 | |
3eef419b | 654 | //Calculate maxtrices for PTII |
bb5c37a5 | 655 | if(!fMisalArray) |
656 | fMisalArray = new TClonesArray("TGeoHMatrix",1120+10) ; | |
657 | Int_t nr = fMisalArray->GetEntriesFast() ; | |
658 | Double_t rotEMC[9]={1.,0.,0.,0.,0.,-1.,0.,1.,0.} ; | |
659 | const Float_t * inthermo = fGeometryEMCA->GetInnerThermoHalfSize() ; | |
660 | const Float_t * strip = fGeometryEMCA->GetStripHalfSize() ; | |
661 | const Float_t * covparams = fGeometryEMCA->GetAlCoverParams() ; | |
662 | const Float_t * warmcov = fGeometryEMCA->GetWarmAlCoverHalfSize() ; | |
663 | Float_t z = fGeometryCPV->GetCPVBoxSize(1) / 2. - warmcov[2] + covparams[3]-inthermo[1] ; | |
664 | Double_t locTII[3]={0.,0.,z} ; | |
665 | Double_t globTII[3] ; | |
666 | ||
3eef419b | 667 | if (fEMCMatrix[mod] == NULL) |
668 | fEMCMatrix[mod] = new((*fMisalArray)[nr])TGeoHMatrix() ; | |
98082233 | 669 | nr++ ; |
3eef419b | 670 | fEMCMatrix[mod]->SetRotation(rotEMC) ; |
671 | fEMCMatrix[mod]->MultiplyLeft(fPHOSMatrix[mod]) ; | |
bb5c37a5 | 672 | fPHOSMatrix[mod]->LocalToMaster(locTII,globTII) ; |
3eef419b | 673 | fEMCMatrix[mod]->SetTranslation(globTII) ; |
bb5c37a5 | 674 | |
675 | //Now calculate ideal matrixes for strip misalignment. | |
676 | //For the moment we can not store them in ESDHeader | |
677 | ||
678 | Double_t loc[3]={0.,inthermo[1] - strip[1],0.} ; | |
679 | Double_t glob[3] ; | |
680 | ||
681 | Int_t istrip=0 ; | |
682 | for(Int_t irow = 0; irow < fGeometryEMCA->GetNStripX(); irow ++){ | |
683 | loc[0] = (2*irow + 1 - fGeometryEMCA->GetNStripX())* strip[0] ; | |
684 | for(Int_t icol = 0; icol < fGeometryEMCA->GetNStripZ(); icol ++){ | |
685 | loc[2] = (2*icol + 1 - fGeometryEMCA->GetNStripZ()) * strip[2] ; | |
686 | fEMCMatrix[mod]->LocalToMaster(loc,glob) ; | |
3eef419b | 687 | if (fStripMatrix[mod][istrip] == NULL) |
688 | fStripMatrix[mod][istrip] = new((*fMisalArray)[nr])TGeoHMatrix(*(fEMCMatrix[mod])) ; //Use same rotation as PHOS module | |
98082233 | 689 | nr++ ; |
3eef419b | 690 | fStripMatrix[mod][istrip]->SetTranslation(glob) ; |
bb5c37a5 | 691 | istrip++; |
692 | } | |
693 | } | |
694 | ||
695 | //Now calculate CPV matrixes | |
696 | const Float_t * emcParams = fGeometryEMCA->GetEMCParams() ; | |
697 | Double_t globCPV[3] ; | |
698 | Double_t locCPV[3]={0.,0.,- emcParams[3]} ; | |
699 | Double_t rot[9]={1.,0.,0.,0.,0.,1.,0.,-1.,0.} ; | |
700 | ||
3eef419b | 701 | if (fCPVMatrix[mod] == NULL) |
702 | fCPVMatrix[mod] = new((*fMisalArray)[nr])TGeoHMatrix() ; | |
98082233 | 703 | nr++ ; |
3eef419b | 704 | fCPVMatrix[mod]->SetRotation(rot) ; |
705 | fCPVMatrix[mod]->MultiplyLeft(fPHOSMatrix[mod]) ; | |
706 | fCPVMatrix[mod]->ReflectY(kFALSE) ; | |
bb5c37a5 | 707 | fPHOSMatrix[mod]->LocalToMaster(locCPV,globCPV) ; |
3eef419b | 708 | fCPVMatrix[mod]->SetTranslation(globCPV) ; |
bb5c37a5 | 709 | |
710 | } | |
711 |