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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 | $Log$ | |
b9d0a01d | 18 | Revision 1.15.6.2 2002/07/24 10:09:30 alibrary |
19 | Updating VirtualMC | |
20 | ||
21 | Revision 1.15.6.1 2002/06/10 15:28:58 hristov | |
22 | Merged with v3-08-02 | |
23 | ||
24 | Revision 1.17 2002/04/05 13:20:12 cblume | |
25 | Remove const for CreateGeometry | |
26 | ||
27 | Revision 1.16 2002/03/28 14:59:07 cblume | |
28 | Coding conventions | |
29 | ||
30 | Revision 1.18 2002/06/12 09:54:35 cblume | |
31 | Update of tracking code provided by Sergei | |
32 | ||
5443e65e | 33 | Revision 1.17 2002/04/05 13:20:12 cblume |
34 | Remove const for CreateGeometry | |
35 | ||
cbba4394 | 36 | Revision 1.16 2002/03/28 14:59:07 cblume |
37 | Coding conventions | |
38 | ||
0a29d0f1 | 39 | Revision 1.15 2002/02/11 14:21:16 cblume |
40 | Update of the geometry. Get rid of MANY | |
41 | ||
0a770ac9 | 42 | Revision 1.14 2001/11/06 17:19:41 cblume |
43 | Add detailed geometry and simple simulator | |
44 | ||
16bf9884 | 45 | Revision 1.13 2001/08/02 08:30:45 cblume |
46 | Fix positions of cooling material | |
47 | ||
52052b58 | 48 | Revision 1.12 2001/05/21 16:45:47 hristov |
49 | Last minute changes (C.Blume) | |
50 | ||
db30bf0f | 51 | Revision 1.11 2001/05/11 07:56:12 hristov |
52 | Consistent declarations needed on Alpha | |
53 | ||
ff821236 | 54 | Revision 1.10 2001/05/07 08:08:05 cblume |
55 | Update of TRD code | |
56 | ||
a2b90f83 | 57 | Revision 1.9 2001/03/27 12:48:33 cblume |
58 | Correct for volume overlaps | |
59 | ||
b42a9f88 | 60 | Revision 1.8 2001/03/13 09:30:35 cblume |
61 | Update of digitization. Moved digit branch definition to AliTRD | |
62 | ||
6244debe | 63 | Revision 1.7 2001/02/14 18:22:26 cblume |
64 | Change in the geometry of the padplane | |
65 | ||
71d9fa7b | 66 | Revision 1.6 2000/11/01 14:53:20 cblume |
67 | Merge with TRD-develop | |
68 | ||
793ff80c | 69 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
70 | Changed timebin 0 to be the one closest to the readout | |
71 | ||
72 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
73 | Include geometry constants as static member | |
74 | ||
75 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
76 | Made Getters const | |
77 | ||
78 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
79 | Replace include files by forward declarations | |
80 | ||
81 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
82 | Allow the pad/timebin-dimensions to be changed after initialization | |
83 | ||
84 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
85 | Minor coding corrections | |
86 | ||
87 | Revision 1.5 2000/10/02 21:28:19 fca | |
88 | Removal of useless dependecies via forward declarations | |
89 | ||
90 | Revision 1.4 2000/06/08 18:32:58 cblume | |
91 | Make code compliant to coding conventions | |
92 | ||
93 | Revision 1.3 2000/06/07 16:25:37 cblume | |
94 | Try to remove compiler warnings on Sun and HP | |
95 | ||
96 | Revision 1.2 2000/05/08 16:17:27 cblume | |
97 | Merge TRD-develop | |
98 | ||
99 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
100 | Bug fix in RotateBack(). Geometry update | |
101 | ||
94de3818 | 102 | Revision 1.4 2000/06/08 18:32:58 cblume |
103 | Make code compliant to coding conventions | |
104 | ||
8230f242 | 105 | Revision 1.3 2000/06/07 16:25:37 cblume |
106 | Try to remove compiler warnings on Sun and HP | |
107 | ||
9d0b222b | 108 | Revision 1.2 2000/05/08 16:17:27 cblume |
109 | Merge TRD-develop | |
110 | ||
6f1e466d | 111 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
112 | Bug fix in RotateBack(). Geometry update | |
113 | ||
114 | Revision 1.1 2000/02/28 19:00:44 cblume | |
115 | Add new TRD classes | |
116 | ||
f7336fa3 | 117 | */ |
118 | ||
119 | /////////////////////////////////////////////////////////////////////////////// | |
120 | // // | |
121 | // TRD geometry class // | |
122 | // // | |
123 | /////////////////////////////////////////////////////////////////////////////// | |
124 | ||
793ff80c | 125 | #include "AliMC.h" |
126 | ||
f7336fa3 | 127 | #include "AliTRDgeometry.h" |
5443e65e | 128 | #include "AliTRDparameter.h" |
94de3818 | 129 | #include "AliMC.h" |
f7336fa3 | 130 | |
131 | ClassImp(AliTRDgeometry) | |
132 | ||
793ff80c | 133 | //_____________________________________________________________________________ |
134 | ||
135 | // | |
136 | // The geometry constants | |
137 | // | |
138 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
139 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
140 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
141 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
142 | ||
143 | // | |
144 | // Dimensions of the detector | |
145 | // | |
0a770ac9 | 146 | |
147 | // Inner and outer radius of the mother volumes | |
793ff80c | 148 | const Float_t AliTRDgeometry::fgkRmin = 294.0; |
149 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
150 | ||
0a770ac9 | 151 | // Upper and lower length of the mother volumes |
793ff80c | 152 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; |
153 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
154 | ||
0a770ac9 | 155 | // Parameter of the BTR mother volumes |
793ff80c | 156 | const Float_t AliTRDgeometry::fgkSheight = 74.0; |
157 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
158 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
159 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
160 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
161 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
162 | ||
0a770ac9 | 163 | // Height of different chamber parts |
164 | // Radiator | |
165 | const Float_t AliTRDgeometry::fgkCraH = 4.8; | |
166 | // Drift region | |
167 | const Float_t AliTRDgeometry::fgkCdrH = 3.0; | |
168 | // Amplification region | |
169 | const Float_t AliTRDgeometry::fgkCamH = 0.7; | |
170 | // Readout | |
171 | const Float_t AliTRDgeometry::fgkCroH = 2.0; | |
172 | // Total height | |
173 | const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH | |
174 | + AliTRDgeometry::fgkCdrH | |
175 | + AliTRDgeometry::fgkCamH | |
176 | + AliTRDgeometry::fgkCroH; | |
177 | ||
178 | // Vertical spacing of the chambers | |
179 | const Float_t AliTRDgeometry::fgkVspace = 2.1; | |
180 | ||
181 | // Horizontal spacing of the chambers | |
182 | const Float_t AliTRDgeometry::fgkHspace = 2.0; | |
183 | ||
184 | // Thicknesses of different parts of the chamber frame | |
185 | // Lower aluminum frame | |
186 | const Float_t AliTRDgeometry::fgkCalT = 0.3; | |
187 | // Lower G10 frame sides | |
188 | const Float_t AliTRDgeometry::fgkCclsT = 0.3; | |
189 | // Lower G10 frame front | |
190 | const Float_t AliTRDgeometry::fgkCclfT = 1.0; | |
191 | // Upper G10 frame | |
192 | const Float_t AliTRDgeometry::fgkCcuT = 0.9; | |
193 | // Upper Al frame | |
194 | const Float_t AliTRDgeometry::fgkCauT = 1.5; | |
195 | ||
196 | // Additional width of the readout chamber frames | |
197 | const Float_t AliTRDgeometry::fgkCroW = 0.9; | |
198 | ||
199 | // Difference of outer chamber width and pad plane width | |
200 | const Float_t AliTRDgeometry::fgkCpadW = 1.0; | |
201 | const Float_t AliTRDgeometry::fgkRpadW = 1.5; | |
793ff80c | 202 | |
203 | // | |
204 | // Thickness of the the material layers | |
205 | // | |
db30bf0f | 206 | const Float_t AliTRDgeometry::fgkRaThick = 0.3646; |
793ff80c | 207 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; |
0a770ac9 | 208 | const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH; |
209 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH; | |
210 | const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick | |
211 | + AliTRDgeometry::fgkAmThick; | |
793ff80c | 212 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; |
213 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
214 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
215 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
db30bf0f | 216 | const Float_t AliTRDgeometry::fgkWaThick = 0.02; |
793ff80c | 217 | |
218 | // | |
219 | // Position of the material layers | |
220 | // | |
0a770ac9 | 221 | const Float_t AliTRDgeometry::fgkRaZpos = -1.50; |
222 | const Float_t AliTRDgeometry::fgkMyZpos = 0.895; | |
223 | const Float_t AliTRDgeometry::fgkDrZpos = 2.4; | |
224 | const Float_t AliTRDgeometry::fgkAmZpos = 0.0; | |
225 | const Float_t AliTRDgeometry::fgkCuZpos = -0.9995; | |
793ff80c | 226 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; |
0a770ac9 | 227 | const Float_t AliTRDgeometry::fgkFeZpos = 0.0322; |
228 | const Float_t AliTRDgeometry::fgkCoZpos = 0.97; | |
229 | const Float_t AliTRDgeometry::fgkWaZpos = 0.99; | |
793ff80c | 230 | |
f7336fa3 | 231 | //_____________________________________________________________________________ |
232 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
233 | { | |
234 | // | |
235 | // AliTRDgeometry default constructor | |
236 | // | |
237 | ||
238 | Init(); | |
239 | ||
240 | } | |
241 | ||
242 | //_____________________________________________________________________________ | |
243 | AliTRDgeometry::~AliTRDgeometry() | |
244 | { | |
8230f242 | 245 | // |
246 | // AliTRDgeometry destructor | |
247 | // | |
f7336fa3 | 248 | |
249 | } | |
250 | ||
251 | //_____________________________________________________________________________ | |
252 | void AliTRDgeometry::Init() | |
253 | { | |
254 | // | |
255 | // Initializes the geometry parameter | |
256 | // | |
f7336fa3 | 257 | // The maximum number of pads |
258 | // and the position of pad 0,0,0 | |
259 | // | |
260 | // chambers seen from the top: | |
261 | // +----------------------------+ | |
262 | // | | | |
793ff80c | 263 | // | | ^ |
264 | // | | rphi| | |
265 | // | | | | |
266 | // |0 | | | |
267 | // +----------------------------+ +------> | |
f7336fa3 | 268 | // z |
793ff80c | 269 | // chambers seen from the side: ^ |
270 | // +----------------------------+ drift| | |
271 | // |0 | | | |
272 | // | | | | |
273 | // +----------------------------+ +------> | |
f7336fa3 | 274 | // z |
275 | // | |
a2b90f83 | 276 | // IMPORTANT: time bin 0 is now the first one in the drift region |
277 | // closest to the readout !!! | |
793ff80c | 278 | // |
f7336fa3 | 279 | |
0a770ac9 | 280 | Int_t icham; |
281 | Int_t iplan; | |
282 | Int_t isect; | |
283 | ||
284 | // The outer width of the chambers | |
285 | fCwidth[0] = 95.6; | |
286 | fCwidth[1] = 100.1; | |
287 | fCwidth[2] = 104.5; | |
288 | fCwidth[3] = 108.9; | |
289 | fCwidth[4] = 113.4; | |
290 | fCwidth[5] = 117.8; | |
291 | ||
292 | // The outer lengths of the chambers | |
293 | Float_t length[kNplan][kNcham] = { { 123.5, 123.5, 110.0, 123.5, 123.5 } | |
294 | , { 131.0, 131.0, 110.0, 131.0, 131.0 } | |
295 | , { 134.5, 138.5, 110.0, 138.5, 134.5 } | |
296 | , { 142.0, 146.0, 110.0, 146.0, 142.0 } | |
297 | , { 142.0, 153.0, 110.0, 153.0, 142.0 } | |
298 | , { 134.0, 160.5, 110.0, 160.5, 134.0 } }; | |
299 | ||
300 | for (icham = 0; icham < kNcham; icham++) { | |
301 | for (iplan = 0; iplan < kNplan; iplan++) { | |
302 | fClength[iplan][icham] = length[iplan][icham]; | |
303 | fClengthPH[iplan][icham] = 0.0; | |
304 | fClengthRH[iplan][icham] = 0.0; | |
305 | } | |
306 | } | |
307 | ||
793ff80c | 308 | // The rotation matrix elements |
309 | Float_t phi = 0; | |
310 | for (isect = 0; isect < fgkNsect; isect++) { | |
5443e65e | 311 | phi = -2.0 * TMath::Pi() / (Float_t) fgkNsect * ((Float_t) isect + 0.5); |
793ff80c | 312 | fRotA11[isect] = TMath::Cos(phi); |
313 | fRotA12[isect] = TMath::Sin(phi); | |
314 | fRotA21[isect] = TMath::Sin(phi); | |
315 | fRotA22[isect] = TMath::Cos(phi); | |
316 | phi = -1.0 * phi; | |
317 | fRotB11[isect] = TMath::Cos(phi); | |
318 | fRotB12[isect] = TMath::Sin(phi); | |
319 | fRotB21[isect] = TMath::Sin(phi); | |
320 | fRotB22[isect] = TMath::Cos(phi); | |
321 | } | |
322 | ||
323 | } | |
324 | ||
f7336fa3 | 325 | //_____________________________________________________________________________ |
cbba4394 | 326 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) |
f7336fa3 | 327 | { |
328 | // | |
0a770ac9 | 329 | // Create TRD geometry |
330 | // | |
f7336fa3 | 331 | |
332 | } | |
333 | ||
334 | //_____________________________________________________________________________ | |
5443e65e | 335 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local |
336 | , Float_t *global | |
337 | , AliTRDparameter *par) const | |
f7336fa3 | 338 | { |
339 | // | |
340 | // Converts local pad-coordinates (row,col,time) into | |
341 | // global ALICE reference frame coordinates (x,y,z) | |
342 | // | |
343 | ||
793ff80c | 344 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
345 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
346 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 347 | |
5443e65e | 348 | return Local2Global(iplan,icham,isect,local,global,par); |
f7336fa3 | 349 | |
350 | } | |
351 | ||
352 | //_____________________________________________________________________________ | |
353 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
5443e65e | 354 | , Float_t *local, Float_t *global |
355 | , AliTRDparameter *par) const | |
f7336fa3 | 356 | { |
357 | // | |
358 | // Converts local pad-coordinates (row,col,time) into | |
359 | // global ALICE reference frame coordinates (x,y,z) | |
360 | // | |
361 | ||
5443e65e | 362 | if (!par) { |
363 | Error("Local2Global","No parameter defined\n"); | |
364 | return kFALSE; | |
365 | } | |
366 | ||
793ff80c | 367 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 368 | |
16bf9884 | 369 | Float_t padRow = local[0]+0.5; // Pad Row position |
370 | Float_t padCol = local[1]+0.5; // Pad Column position | |
371 | Float_t timeSlice = local[2]+0.5; // Time "position" | |
f7336fa3 | 372 | |
5443e65e | 373 | Float_t row0 = par->GetRow0(iplan,icham,isect); |
374 | Float_t col0 = par->GetCol0(iplan); | |
375 | Float_t time0 = par->GetTime0(iplan); | |
f7336fa3 | 376 | |
793ff80c | 377 | Float_t rot[3]; |
f7336fa3 | 378 | |
379 | // calculate (x,y,z) position in rotated chamber | |
5443e65e | 380 | rot[0] = time0 - (timeSlice - par->GetTimeBefore()) |
381 | * par->GetTimeBinSize(); | |
382 | rot[1] = col0 + padCol | |
383 | * par->GetColPadSize(iplan); | |
384 | rot[2] = row0 + padRow | |
385 | * par->GetRowPadSize(iplan,icham,isect); | |
f7336fa3 | 386 | |
387 | // Rotate back to original position | |
388 | return RotateBack(idet,rot,global); | |
389 | ||
390 | } | |
391 | ||
392 | //_____________________________________________________________________________ | |
793ff80c | 393 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 394 | { |
395 | // | |
396 | // Rotates all chambers in the position of sector 0 and transforms | |
397 | // the coordinates in the ALICE restframe <pos> into the | |
398 | // corresponding local frame <rot>. | |
399 | // | |
400 | ||
793ff80c | 401 | Int_t sector = GetSector(d); |
f7336fa3 | 402 | |
793ff80c | 403 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
404 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 405 | rot[2] = pos[2]; |
406 | ||
407 | return kTRUE; | |
408 | ||
409 | } | |
410 | ||
411 | //_____________________________________________________________________________ | |
94de3818 | 412 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 413 | { |
414 | // | |
415 | // Rotates a chambers from the position of sector 0 into its | |
416 | // original position and transforms the corresponding local frame | |
417 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
418 | // | |
419 | ||
793ff80c | 420 | Int_t sector = GetSector(d); |
f7336fa3 | 421 | |
793ff80c | 422 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
423 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 424 | pos[2] = rot[2]; |
f7336fa3 | 425 | |
426 | return kTRUE; | |
427 | ||
428 | } | |
429 | ||
430 | //_____________________________________________________________________________ | |
0a770ac9 | 431 | Int_t AliTRDgeometry::GetDetectorSec(const Int_t p, const Int_t c) const |
432 | { | |
433 | // | |
434 | // Convert plane / chamber into detector number for one single sector | |
435 | // | |
436 | ||
437 | return (p + c * fgkNplan); | |
438 | ||
439 | } | |
440 | ||
441 | //_____________________________________________________________________________ | |
ff821236 | 442 | Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const |
f7336fa3 | 443 | { |
444 | // | |
445 | // Convert plane / chamber / sector into detector number | |
446 | // | |
447 | ||
793ff80c | 448 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 449 | |
450 | } | |
451 | ||
452 | //_____________________________________________________________________________ | |
ff821236 | 453 | Int_t AliTRDgeometry::GetPlane(const Int_t d) const |
f7336fa3 | 454 | { |
455 | // | |
456 | // Reconstruct the plane number from the detector number | |
457 | // | |
458 | ||
793ff80c | 459 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 460 | |
461 | } | |
462 | ||
463 | //_____________________________________________________________________________ | |
ff821236 | 464 | Int_t AliTRDgeometry::GetChamber(const Int_t d) const |
f7336fa3 | 465 | { |
466 | // | |
467 | // Reconstruct the chamber number from the detector number | |
468 | // | |
469 | ||
793ff80c | 470 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 471 | |
472 | } | |
473 | ||
474 | //_____________________________________________________________________________ | |
ff821236 | 475 | Int_t AliTRDgeometry::GetSector(const Int_t d) const |
f7336fa3 | 476 | { |
477 | // | |
478 | // Reconstruct the sector number from the detector number | |
479 | // | |
480 | ||
793ff80c | 481 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 482 | |
483 | } | |
484 |