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f7336fa3 | 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 | /* | |
17 | $Log$ | |
db30bf0f | 18 | Revision 1.11 2001/05/11 07:56:12 hristov |
19 | Consistent declarations needed on Alpha | |
20 | ||
ff821236 | 21 | Revision 1.10 2001/05/07 08:08:05 cblume |
22 | Update of TRD code | |
23 | ||
a2b90f83 | 24 | Revision 1.9 2001/03/27 12:48:33 cblume |
25 | Correct for volume overlaps | |
26 | ||
b42a9f88 | 27 | Revision 1.8 2001/03/13 09:30:35 cblume |
28 | Update of digitization. Moved digit branch definition to AliTRD | |
29 | ||
6244debe | 30 | Revision 1.7 2001/02/14 18:22:26 cblume |
31 | Change in the geometry of the padplane | |
32 | ||
71d9fa7b | 33 | Revision 1.6 2000/11/01 14:53:20 cblume |
34 | Merge with TRD-develop | |
35 | ||
793ff80c | 36 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
37 | Changed timebin 0 to be the one closest to the readout | |
38 | ||
39 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
40 | Include geometry constants as static member | |
41 | ||
42 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
43 | Made Getters const | |
44 | ||
45 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
46 | Replace include files by forward declarations | |
47 | ||
48 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
49 | Allow the pad/timebin-dimensions to be changed after initialization | |
50 | ||
51 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
52 | Minor coding corrections | |
53 | ||
54 | Revision 1.5 2000/10/02 21:28:19 fca | |
55 | Removal of useless dependecies via forward declarations | |
56 | ||
57 | Revision 1.4 2000/06/08 18:32:58 cblume | |
58 | Make code compliant to coding conventions | |
59 | ||
60 | Revision 1.3 2000/06/07 16:25:37 cblume | |
61 | Try to remove compiler warnings on Sun and HP | |
62 | ||
63 | Revision 1.2 2000/05/08 16:17:27 cblume | |
64 | Merge TRD-develop | |
65 | ||
66 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
67 | Bug fix in RotateBack(). Geometry update | |
68 | ||
94de3818 | 69 | Revision 1.4 2000/06/08 18:32:58 cblume |
70 | Make code compliant to coding conventions | |
71 | ||
8230f242 | 72 | Revision 1.3 2000/06/07 16:25:37 cblume |
73 | Try to remove compiler warnings on Sun and HP | |
74 | ||
9d0b222b | 75 | Revision 1.2 2000/05/08 16:17:27 cblume |
76 | Merge TRD-develop | |
77 | ||
6f1e466d | 78 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
79 | Bug fix in RotateBack(). Geometry update | |
80 | ||
81 | Revision 1.1 2000/02/28 19:00:44 cblume | |
82 | Add new TRD classes | |
83 | ||
f7336fa3 | 84 | */ |
85 | ||
86 | /////////////////////////////////////////////////////////////////////////////// | |
87 | // // | |
88 | // TRD geometry class // | |
89 | // // | |
90 | /////////////////////////////////////////////////////////////////////////////// | |
91 | ||
793ff80c | 92 | #include "AliMC.h" |
93 | ||
f7336fa3 | 94 | #include "AliTRDgeometry.h" |
95 | #include "AliTRDrecPoint.h" | |
94de3818 | 96 | #include "AliMC.h" |
f7336fa3 | 97 | |
98 | ClassImp(AliTRDgeometry) | |
99 | ||
793ff80c | 100 | //_____________________________________________________________________________ |
101 | ||
102 | // | |
103 | // The geometry constants | |
104 | // | |
105 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
106 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
107 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
108 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
109 | ||
110 | // | |
111 | // Dimensions of the detector | |
112 | // | |
113 | const Float_t AliTRDgeometry::fgkRmin = 294.0; | |
114 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
115 | ||
116 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; | |
117 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
118 | ||
119 | const Float_t AliTRDgeometry::fgkSheight = 74.0; | |
120 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
121 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
122 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
123 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
124 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
125 | ||
126 | const Float_t AliTRDgeometry::fgkCheight = 11.0; | |
127 | const Float_t AliTRDgeometry::fgkCspace = 1.6; | |
128 | const Float_t AliTRDgeometry::fgkCathick = 1.0; | |
129 | const Float_t AliTRDgeometry::fgkCcthick = 1.0; | |
130 | const Float_t AliTRDgeometry::fgkCaframe = 2.675; | |
131 | const Float_t AliTRDgeometry::fgkCcframe = AliTRDgeometry::fgkCheight | |
132 | - AliTRDgeometry::fgkCaframe; | |
133 | ||
134 | // | |
135 | // Thickness of the the material layers | |
136 | // | |
db30bf0f | 137 | const Float_t AliTRDgeometry::fgkRaThick = 0.3646; |
793ff80c | 138 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; |
139 | const Float_t AliTRDgeometry::fgkXeThick = 3.5; | |
140 | const Float_t AliTRDgeometry::fgkDrThick = 3.0; | |
141 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkXeThick | |
142 | - AliTRDgeometry::fgkDrThick; | |
143 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; | |
144 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
145 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
146 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
db30bf0f | 147 | //const Float_t AliTRDgeometry::fgkWaThick = 0.01; |
148 | const Float_t AliTRDgeometry::fgkWaThick = 0.02; | |
793ff80c | 149 | |
150 | // | |
151 | // Position of the material layers | |
152 | // | |
b42a9f88 | 153 | const Float_t AliTRDgeometry::fgkRaZpos = -1.74; |
b42a9f88 | 154 | const Float_t AliTRDgeometry::fgkMyZpos = 0.6550; |
155 | const Float_t AliTRDgeometry::fgkDrZpos = 2.1600; | |
156 | const Float_t AliTRDgeometry::fgkAmZpos = 3.9100; | |
793ff80c | 157 | const Float_t AliTRDgeometry::fgkCuZpos = -1.3370; |
158 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; | |
159 | const Float_t AliTRDgeometry::fgkFeZpos = 1.3053; | |
160 | const Float_t AliTRDgeometry::fgkCoZpos = 1.3175; | |
db30bf0f | 161 | //const Float_t AliTRDgeometry::fgkWaZpos = 1.3325; |
162 | const Float_t AliTRDgeometry::fgkWaZpos = 1.3375; | |
793ff80c | 163 | |
f7336fa3 | 164 | //_____________________________________________________________________________ |
165 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
166 | { | |
167 | // | |
168 | // AliTRDgeometry default constructor | |
169 | // | |
170 | ||
171 | Init(); | |
172 | ||
173 | } | |
174 | ||
175 | //_____________________________________________________________________________ | |
176 | AliTRDgeometry::~AliTRDgeometry() | |
177 | { | |
8230f242 | 178 | // |
179 | // AliTRDgeometry destructor | |
180 | // | |
f7336fa3 | 181 | |
182 | } | |
183 | ||
184 | //_____________________________________________________________________________ | |
185 | void AliTRDgeometry::Init() | |
186 | { | |
187 | // | |
188 | // Initializes the geometry parameter | |
189 | // | |
190 | ||
793ff80c | 191 | Int_t isect; |
f7336fa3 | 192 | |
193 | // The width of the chambers | |
793ff80c | 194 | fCwidth[0] = 99.6; |
195 | fCwidth[1] = 104.1; | |
196 | fCwidth[2] = 108.5; | |
197 | fCwidth[3] = 112.9; | |
198 | fCwidth[4] = 117.4; | |
199 | fCwidth[5] = 121.8; | |
f7336fa3 | 200 | |
201 | // The maximum number of pads | |
202 | // and the position of pad 0,0,0 | |
203 | // | |
204 | // chambers seen from the top: | |
205 | // +----------------------------+ | |
206 | // | | | |
793ff80c | 207 | // | | ^ |
208 | // | | rphi| | |
209 | // | | | | |
210 | // |0 | | | |
211 | // +----------------------------+ +------> | |
f7336fa3 | 212 | // z |
793ff80c | 213 | // chambers seen from the side: ^ |
214 | // +----------------------------+ drift| | |
215 | // |0 | | | |
216 | // | | | | |
217 | // +----------------------------+ +------> | |
f7336fa3 | 218 | // z |
219 | // | |
a2b90f83 | 220 | // IMPORTANT: time bin 0 is now the first one in the drift region |
221 | // closest to the readout !!! | |
793ff80c | 222 | // |
f7336fa3 | 223 | |
224 | // The pad column (rphi-direction) | |
71d9fa7b | 225 | SetNColPad(96); |
793ff80c | 226 | |
a2b90f83 | 227 | // The number of time bins. Default is 100 ns timbin size |
6244debe | 228 | SetNTimeBin(15); |
793ff80c | 229 | |
a2b90f83 | 230 | // Additional time bins before and after the drift region. |
231 | // Default is to only sample the drift region | |
232 | SetExpandTimeBin(0,0); | |
233 | ||
793ff80c | 234 | // The rotation matrix elements |
235 | Float_t phi = 0; | |
236 | for (isect = 0; isect < fgkNsect; isect++) { | |
237 | phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5); | |
238 | fRotA11[isect] = TMath::Cos(phi); | |
239 | fRotA12[isect] = TMath::Sin(phi); | |
240 | fRotA21[isect] = TMath::Sin(phi); | |
241 | fRotA22[isect] = TMath::Cos(phi); | |
242 | phi = -1.0 * phi; | |
243 | fRotB11[isect] = TMath::Cos(phi); | |
244 | fRotB12[isect] = TMath::Sin(phi); | |
245 | fRotB21[isect] = TMath::Sin(phi); | |
246 | fRotB22[isect] = TMath::Cos(phi); | |
247 | } | |
248 | ||
249 | } | |
250 | ||
251 | //_____________________________________________________________________________ | |
a2b90f83 | 252 | void AliTRDgeometry::SetNColPad(const Int_t npad) |
793ff80c | 253 | { |
254 | // | |
71d9fa7b | 255 | // Redefines the number of pads in column direction |
793ff80c | 256 | // |
257 | ||
793ff80c | 258 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
71d9fa7b | 259 | fColMax[iplan] = npad; |
260 | fColPadSize[iplan] = (fCwidth[iplan] - 2. * fgkCcthick) / fColMax[iplan]; | |
261 | fCol0[iplan] = -fCwidth[iplan]/2. + fgkCcthick; | |
f7336fa3 | 262 | } |
263 | ||
793ff80c | 264 | } |
265 | ||
266 | //_____________________________________________________________________________ | |
a2b90f83 | 267 | void AliTRDgeometry::SetNTimeBin(const Int_t nbin) |
793ff80c | 268 | { |
269 | // | |
a2b90f83 | 270 | // Redefines the number of time bins in the drift region. |
271 | // The time bin width is defined by the length of the | |
272 | // drift region divided by <nbin>. | |
793ff80c | 273 | // |
274 | ||
71d9fa7b | 275 | fTimeMax = nbin; |
276 | fTimeBinSize = fgkDrThick / ((Float_t) fTimeMax); | |
793ff80c | 277 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
278 | fTime0[iplan] = fgkRmin + fgkCcframe/2. + fgkDrZpos + 0.5 * fgkDrThick | |
279 | + iplan * (fgkCheight + fgkCspace); | |
280 | } | |
f7336fa3 | 281 | |
282 | } | |
283 | ||
284 | //_____________________________________________________________________________ | |
285 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) | |
286 | { | |
287 | // | |
288 | // Create the TRD geometry | |
289 | // | |
290 | // Author: Christoph Blume (C.Blume@gsi.de) 20/07/99 | |
291 | // | |
292 | // The volumes: | |
293 | // TRD1-3 (Air) --- The TRD mother volumes for one sector. | |
294 | // To be placed into the spaceframe. | |
295 | // | |
296 | // UAFI(/M/O) (Al) --- The aluminum frame of the inner(/middle/outer) chambers (readout) | |
297 | // UCFI(/M/O) (C) --- The carbon frame of the inner(/middle/outer) chambers | |
298 | // (driftchamber + radiator) | |
299 | // UAII(/M/O) (Air) --- The inner part of the readout of the inner(/middle/outer) chambers | |
300 | // UFII(/M/O) (Air) --- The inner part of the chamner and radiator of the | |
301 | // inner(/middle/outer) chambers | |
302 | // | |
303 | // The material layers in one chamber: | |
db30bf0f | 304 | // UL03 (Rohacell) --- The radiator |
305 | // UL04 (Mylar) --- Entrance window to the driftvolume and HV-cathode | |
306 | // UL05 (Xe) --- The driftvolume | |
307 | // UL06 (Xe) --- The amplification region | |
f7336fa3 | 308 | // |
db30bf0f | 309 | // UL07 (Cu) --- The pad plane |
310 | // UL08 (G10) --- The Nomex honeycomb support structure | |
311 | // UL09 (Cu) --- FEE and signal lines | |
312 | // UL10 (Al) --- The cooling devices | |
313 | // UL11 (Water) --- The cooling water | |
f7336fa3 | 314 | |
8230f242 | 315 | const Int_t kNparCha = 3; |
f7336fa3 | 316 | |
8230f242 | 317 | Float_t parDum[3]; |
318 | Float_t parCha[kNparCha]; | |
f7336fa3 | 319 | |
320 | Float_t xpos, ypos, zpos; | |
321 | ||
322 | // The aluminum frames - readout + electronics (Al) | |
323 | // The inner chambers | |
8230f242 | 324 | gMC->Gsvolu("UAFI","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 325 | // The middle chambers |
8230f242 | 326 | gMC->Gsvolu("UAFM","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 327 | // The outer chambers |
8230f242 | 328 | gMC->Gsvolu("UAFO","BOX ",idtmed[1301-1],parDum,0); |
f7336fa3 | 329 | |
330 | // The inner part of the aluminum frames (Air) | |
331 | // The inner chambers | |
8230f242 | 332 | gMC->Gsvolu("UAII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 333 | // The middle chambers |
8230f242 | 334 | gMC->Gsvolu("UAIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 335 | // The outer chambers |
8230f242 | 336 | gMC->Gsvolu("UAIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 337 | |
338 | // The carbon frames - radiator + driftchamber (C) | |
339 | // The inner chambers | |
8230f242 | 340 | gMC->Gsvolu("UCFI","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 341 | // The middle chambers |
8230f242 | 342 | gMC->Gsvolu("UCFM","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 343 | // The outer chambers |
8230f242 | 344 | gMC->Gsvolu("UCFO","BOX ",idtmed[1307-1],parDum,0); |
f7336fa3 | 345 | |
346 | // The inner part of the carbon frames (Air) | |
347 | // The inner chambers | |
8230f242 | 348 | gMC->Gsvolu("UCII","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 349 | // The middle chambers |
8230f242 | 350 | gMC->Gsvolu("UCIM","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 351 | // The outer chambers |
8230f242 | 352 | gMC->Gsvolu("UCIO","BOX ",idtmed[1302-1],parDum,0); |
f7336fa3 | 353 | |
354 | // The material layers inside the chambers | |
8230f242 | 355 | parCha[0] = -1.; |
356 | parCha[1] = -1.; | |
db30bf0f | 357 | // Rohacell layer (radiator) |
793ff80c | 358 | parCha[2] = fgkRaThick/2; |
db30bf0f | 359 | gMC->Gsvolu("UL03","BOX ",idtmed[1315-1],parCha,kNparCha); |
f7336fa3 | 360 | // Mylar layer (entrance window + HV cathode) |
793ff80c | 361 | parCha[2] = fgkMyThick/2; |
8230f242 | 362 | gMC->Gsvolu("UL04","BOX ",idtmed[1308-1],parCha,kNparCha); |
db30bf0f | 363 | // Xe/Isobutane layer (drift volume) |
793ff80c | 364 | parCha[2] = fgkDrThick/2.; |
8230f242 | 365 | gMC->Gsvolu("UL05","BOX ",idtmed[1309-1],parCha,kNparCha); |
db30bf0f | 366 | // Xe/Isobutane layer (amplification volume) |
793ff80c | 367 | parCha[2] = fgkAmThick/2.; |
8230f242 | 368 | gMC->Gsvolu("UL06","BOX ",idtmed[1309-1],parCha,kNparCha); |
f7336fa3 | 369 | |
370 | // Cu layer (pad plane) | |
793ff80c | 371 | parCha[2] = fgkCuThick/2; |
8230f242 | 372 | gMC->Gsvolu("UL07","BOX ",idtmed[1305-1],parCha,kNparCha); |
f7336fa3 | 373 | // G10 layer (support structure) |
793ff80c | 374 | parCha[2] = fgkSuThick/2; |
8230f242 | 375 | gMC->Gsvolu("UL08","BOX ",idtmed[1313-1],parCha,kNparCha); |
f7336fa3 | 376 | // Cu layer (FEE + signal lines) |
793ff80c | 377 | parCha[2] = fgkFeThick/2; |
8230f242 | 378 | gMC->Gsvolu("UL09","BOX ",idtmed[1305-1],parCha,kNparCha); |
db30bf0f | 379 | // Al layer (cooling devices) |
793ff80c | 380 | parCha[2] = fgkCoThick/2; |
db30bf0f | 381 | gMC->Gsvolu("UL10","BOX ",idtmed[1301-1],parCha,kNparCha); |
f7336fa3 | 382 | // Water layer (cooling) |
793ff80c | 383 | parCha[2] = fgkWaThick/2; |
8230f242 | 384 | gMC->Gsvolu("UL11","BOX ",idtmed[1314-1],parCha,kNparCha); |
f7336fa3 | 385 | |
386 | // Position the layers in the chambers | |
387 | xpos = 0; | |
388 | ypos = 0; | |
389 | ||
db30bf0f | 390 | // Rohacell layer (radiator) |
793ff80c | 391 | zpos = fgkRaZpos; |
db30bf0f | 392 | gMC->Gspos("UL03",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
393 | gMC->Gspos("UL03",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
394 | gMC->Gspos("UL03",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
f7336fa3 | 395 | // Mylar layer (entrance window + HV cathode) |
793ff80c | 396 | zpos = fgkMyZpos; |
f7336fa3 | 397 | gMC->Gspos("UL04",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
398 | gMC->Gspos("UL04",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
399 | gMC->Gspos("UL04",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
400 | // Xe/Isobutane layer (drift volume) | |
793ff80c | 401 | zpos = fgkDrZpos; |
f7336fa3 | 402 | gMC->Gspos("UL05",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
403 | gMC->Gspos("UL05",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
404 | gMC->Gspos("UL05",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
405 | // Xe/Isobutane layer (amplification volume) | |
793ff80c | 406 | zpos = fgkAmZpos; |
f7336fa3 | 407 | gMC->Gspos("UL06",1,"UCII",xpos,ypos,zpos,0,"ONLY"); |
408 | gMC->Gspos("UL06",2,"UCIM",xpos,ypos,zpos,0,"ONLY"); | |
409 | gMC->Gspos("UL06",3,"UCIO",xpos,ypos,zpos,0,"ONLY"); | |
f7336fa3 | 410 | // Cu layer (pad plane) |
793ff80c | 411 | zpos = fgkCuZpos; |
f7336fa3 | 412 | gMC->Gspos("UL07",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
413 | gMC->Gspos("UL07",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
414 | gMC->Gspos("UL07",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
415 | // G10 layer (support structure) | |
793ff80c | 416 | zpos = fgkSuZpos; |
f7336fa3 | 417 | gMC->Gspos("UL08",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
418 | gMC->Gspos("UL08",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
419 | gMC->Gspos("UL08",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
420 | // Cu layer (FEE + signal lines) | |
793ff80c | 421 | zpos = fgkFeZpos; |
f7336fa3 | 422 | gMC->Gspos("UL09",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
423 | gMC->Gspos("UL09",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
424 | gMC->Gspos("UL09",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
db30bf0f | 425 | // Al layer (cooling devices) |
793ff80c | 426 | zpos = fgkCoZpos; |
f7336fa3 | 427 | gMC->Gspos("UL10",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
428 | gMC->Gspos("UL10",2,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
429 | gMC->Gspos("UL10",3,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
430 | // Water layer (cooling) | |
793ff80c | 431 | zpos = fgkWaZpos; |
f7336fa3 | 432 | gMC->Gspos("UL11",1,"UAII",xpos,ypos,zpos,0,"ONLY"); |
433 | gMC->Gspos("UL11",1,"UAIM",xpos,ypos,zpos,0,"ONLY"); | |
434 | gMC->Gspos("UL11",1,"UAIO",xpos,ypos,zpos,0,"ONLY"); | |
435 | ||
436 | } | |
437 | ||
438 | //_____________________________________________________________________________ | |
94de3818 | 439 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const |
f7336fa3 | 440 | { |
441 | // | |
442 | // Converts local pad-coordinates (row,col,time) into | |
443 | // global ALICE reference frame coordinates (x,y,z) | |
444 | // | |
445 | ||
793ff80c | 446 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
447 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
448 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 449 | |
6f1e466d | 450 | return Local2Global(iplan,icham,isect,local,global); |
f7336fa3 | 451 | |
452 | } | |
453 | ||
454 | //_____________________________________________________________________________ | |
455 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
94de3818 | 456 | , Float_t *local, Float_t *global) const |
f7336fa3 | 457 | { |
458 | // | |
459 | // Converts local pad-coordinates (row,col,time) into | |
460 | // global ALICE reference frame coordinates (x,y,z) | |
461 | // | |
462 | ||
793ff80c | 463 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 464 | |
793ff80c | 465 | Float_t padRow = local[0]; // Pad Row position |
466 | Float_t padCol = local[1]; // Pad Column position | |
467 | Float_t timeSlice = local[2]; // Time "position" | |
f7336fa3 | 468 | |
793ff80c | 469 | Float_t row0 = GetRow0(iplan,icham,isect); |
470 | Float_t col0 = GetCol0(iplan); | |
471 | Float_t time0 = GetTime0(iplan); | |
f7336fa3 | 472 | |
793ff80c | 473 | Float_t rot[3]; |
f7336fa3 | 474 | |
475 | // calculate (x,y,z) position in rotated chamber | |
a2b90f83 | 476 | rot[0] = time0 - (timeSlice - fTimeBefore) * fTimeBinSize; |
477 | rot[1] = col0 + padCol * fColPadSize[iplan]; | |
478 | rot[2] = row0 + padRow * fRowPadSize[iplan][icham][isect]; | |
f7336fa3 | 479 | |
480 | // Rotate back to original position | |
481 | return RotateBack(idet,rot,global); | |
482 | ||
483 | } | |
484 | ||
485 | //_____________________________________________________________________________ | |
793ff80c | 486 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 487 | { |
488 | // | |
489 | // Rotates all chambers in the position of sector 0 and transforms | |
490 | // the coordinates in the ALICE restframe <pos> into the | |
491 | // corresponding local frame <rot>. | |
492 | // | |
493 | ||
793ff80c | 494 | Int_t sector = GetSector(d); |
f7336fa3 | 495 | |
793ff80c | 496 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
497 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 498 | rot[2] = pos[2]; |
499 | ||
500 | return kTRUE; | |
501 | ||
502 | } | |
503 | ||
504 | //_____________________________________________________________________________ | |
94de3818 | 505 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 506 | { |
507 | // | |
508 | // Rotates a chambers from the position of sector 0 into its | |
509 | // original position and transforms the corresponding local frame | |
510 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
511 | // | |
512 | ||
793ff80c | 513 | Int_t sector = GetSector(d); |
f7336fa3 | 514 | |
793ff80c | 515 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
516 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 517 | pos[2] = rot[2]; |
f7336fa3 | 518 | |
519 | return kTRUE; | |
520 | ||
521 | } | |
522 | ||
523 | //_____________________________________________________________________________ | |
ff821236 | 524 | Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const |
f7336fa3 | 525 | { |
526 | // | |
527 | // Convert plane / chamber / sector into detector number | |
528 | // | |
529 | ||
793ff80c | 530 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 531 | |
532 | } | |
533 | ||
534 | //_____________________________________________________________________________ | |
ff821236 | 535 | Int_t AliTRDgeometry::GetPlane(const Int_t d) const |
f7336fa3 | 536 | { |
537 | // | |
538 | // Reconstruct the plane number from the detector number | |
539 | // | |
540 | ||
793ff80c | 541 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 542 | |
543 | } | |
544 | ||
545 | //_____________________________________________________________________________ | |
ff821236 | 546 | Int_t AliTRDgeometry::GetChamber(const Int_t d) const |
f7336fa3 | 547 | { |
548 | // | |
549 | // Reconstruct the chamber number from the detector number | |
550 | // | |
551 | ||
793ff80c | 552 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 553 | |
554 | } | |
555 | ||
556 | //_____________________________________________________________________________ | |
ff821236 | 557 | Int_t AliTRDgeometry::GetSector(const Int_t d) const |
f7336fa3 | 558 | { |
559 | // | |
560 | // Reconstruct the sector number from the detector number | |
561 | // | |
562 | ||
793ff80c | 563 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 564 | |
565 | } | |
566 | ||
567 | //_____________________________________________________________________________ | |
793ff80c | 568 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos |
569 | , TMatrix &mat) const | |
f7336fa3 | 570 | { |
571 | // | |
572 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
573 | // | |
574 | ||
575 | GetGlobal(p,pos); | |
9d0b222b | 576 | mat.Zero(); |
f7336fa3 | 577 | |
578 | } | |
579 | ||
580 | //_____________________________________________________________________________ | |
94de3818 | 581 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const |
f7336fa3 | 582 | { |
583 | // | |
584 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
585 | // | |
586 | ||
587 | Int_t detector = ((AliTRDrecPoint *) p)->GetDetector(); | |
588 | ||
589 | Float_t global[3]; | |
590 | Float_t local[3]; | |
6f1e466d | 591 | local[0] = ((AliTRDrecPoint *) p)->GetLocalRow(); |
592 | local[1] = ((AliTRDrecPoint *) p)->GetLocalCol(); | |
593 | local[2] = ((AliTRDrecPoint *) p)->GetLocalTime(); | |
f7336fa3 | 594 | |
595 | if (Local2Global(detector,local,global)) { | |
596 | pos.SetX(global[0]); | |
597 | pos.SetY(global[1]); | |
598 | pos.SetZ(global[2]); | |
599 | } | |
600 | else { | |
601 | pos.SetX(0.0); | |
602 | pos.SetY(0.0); | |
603 | pos.SetZ(0.0); | |
604 | } | |
605 | ||
606 | } |