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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 | $Log$ | |
0a770ac9 | 18 | Revision 1.14 2001/11/06 17:19:41 cblume |
19 | Add detailed geometry and simple simulator | |
20 | ||
16bf9884 | 21 | Revision 1.13 2001/08/02 08:30:45 cblume |
22 | Fix positions of cooling material | |
23 | ||
52052b58 | 24 | Revision 1.12 2001/05/21 16:45:47 hristov |
25 | Last minute changes (C.Blume) | |
26 | ||
db30bf0f | 27 | Revision 1.11 2001/05/11 07:56:12 hristov |
28 | Consistent declarations needed on Alpha | |
29 | ||
ff821236 | 30 | Revision 1.10 2001/05/07 08:08:05 cblume |
31 | Update of TRD code | |
32 | ||
a2b90f83 | 33 | Revision 1.9 2001/03/27 12:48:33 cblume |
34 | Correct for volume overlaps | |
35 | ||
b42a9f88 | 36 | Revision 1.8 2001/03/13 09:30:35 cblume |
37 | Update of digitization. Moved digit branch definition to AliTRD | |
38 | ||
6244debe | 39 | Revision 1.7 2001/02/14 18:22:26 cblume |
40 | Change in the geometry of the padplane | |
41 | ||
71d9fa7b | 42 | Revision 1.6 2000/11/01 14:53:20 cblume |
43 | Merge with TRD-develop | |
44 | ||
793ff80c | 45 | Revision 1.1.4.7 2000/10/16 01:16:53 cblume |
46 | Changed timebin 0 to be the one closest to the readout | |
47 | ||
48 | Revision 1.1.4.6 2000/10/15 23:35:57 cblume | |
49 | Include geometry constants as static member | |
50 | ||
51 | Revision 1.1.4.5 2000/10/06 16:49:46 cblume | |
52 | Made Getters const | |
53 | ||
54 | Revision 1.1.4.4 2000/10/04 16:34:58 cblume | |
55 | Replace include files by forward declarations | |
56 | ||
57 | Revision 1.1.4.3 2000/09/22 14:43:40 cblume | |
58 | Allow the pad/timebin-dimensions to be changed after initialization | |
59 | ||
60 | Revision 1.1.4.2 2000/09/18 13:37:01 cblume | |
61 | Minor coding corrections | |
62 | ||
63 | Revision 1.5 2000/10/02 21:28:19 fca | |
64 | Removal of useless dependecies via forward declarations | |
65 | ||
66 | Revision 1.4 2000/06/08 18:32:58 cblume | |
67 | Make code compliant to coding conventions | |
68 | ||
69 | Revision 1.3 2000/06/07 16:25:37 cblume | |
70 | Try to remove compiler warnings on Sun and HP | |
71 | ||
72 | Revision 1.2 2000/05/08 16:17:27 cblume | |
73 | Merge TRD-develop | |
74 | ||
75 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume | |
76 | Bug fix in RotateBack(). Geometry update | |
77 | ||
94de3818 | 78 | Revision 1.4 2000/06/08 18:32:58 cblume |
79 | Make code compliant to coding conventions | |
80 | ||
8230f242 | 81 | Revision 1.3 2000/06/07 16:25:37 cblume |
82 | Try to remove compiler warnings on Sun and HP | |
83 | ||
9d0b222b | 84 | Revision 1.2 2000/05/08 16:17:27 cblume |
85 | Merge TRD-develop | |
86 | ||
6f1e466d | 87 | Revision 1.1.4.1 2000/05/08 14:45:55 cblume |
88 | Bug fix in RotateBack(). Geometry update | |
89 | ||
90 | Revision 1.1 2000/02/28 19:00:44 cblume | |
91 | Add new TRD classes | |
92 | ||
f7336fa3 | 93 | */ |
94 | ||
95 | /////////////////////////////////////////////////////////////////////////////// | |
96 | // // | |
97 | // TRD geometry class // | |
98 | // // | |
99 | /////////////////////////////////////////////////////////////////////////////// | |
100 | ||
793ff80c | 101 | #include "AliMC.h" |
102 | ||
f7336fa3 | 103 | #include "AliTRDgeometry.h" |
104 | #include "AliTRDrecPoint.h" | |
94de3818 | 105 | #include "AliMC.h" |
f7336fa3 | 106 | |
107 | ClassImp(AliTRDgeometry) | |
108 | ||
793ff80c | 109 | //_____________________________________________________________________________ |
110 | ||
111 | // | |
112 | // The geometry constants | |
113 | // | |
114 | const Int_t AliTRDgeometry::fgkNsect = kNsect; | |
115 | const Int_t AliTRDgeometry::fgkNplan = kNplan; | |
116 | const Int_t AliTRDgeometry::fgkNcham = kNcham; | |
117 | const Int_t AliTRDgeometry::fgkNdet = kNdet; | |
118 | ||
119 | // | |
120 | // Dimensions of the detector | |
121 | // | |
0a770ac9 | 122 | |
123 | // Inner and outer radius of the mother volumes | |
793ff80c | 124 | const Float_t AliTRDgeometry::fgkRmin = 294.0; |
125 | const Float_t AliTRDgeometry::fgkRmax = 368.0; | |
126 | ||
0a770ac9 | 127 | // Upper and lower length of the mother volumes |
793ff80c | 128 | const Float_t AliTRDgeometry::fgkZmax1 = 378.35; |
129 | const Float_t AliTRDgeometry::fgkZmax2 = 302.0; | |
130 | ||
0a770ac9 | 131 | // Parameter of the BTR mother volumes |
793ff80c | 132 | const Float_t AliTRDgeometry::fgkSheight = 74.0; |
133 | const Float_t AliTRDgeometry::fgkSwidth1 = 99.613; | |
134 | const Float_t AliTRDgeometry::fgkSwidth2 = 125.707; | |
135 | const Float_t AliTRDgeometry::fgkSlenTR1 = 751.0; | |
136 | const Float_t AliTRDgeometry::fgkSlenTR2 = 313.5; | |
137 | const Float_t AliTRDgeometry::fgkSlenTR3 = 159.5; | |
138 | ||
0a770ac9 | 139 | // Height of different chamber parts |
140 | // Radiator | |
141 | const Float_t AliTRDgeometry::fgkCraH = 4.8; | |
142 | // Drift region | |
143 | const Float_t AliTRDgeometry::fgkCdrH = 3.0; | |
144 | // Amplification region | |
145 | const Float_t AliTRDgeometry::fgkCamH = 0.7; | |
146 | // Readout | |
147 | const Float_t AliTRDgeometry::fgkCroH = 2.0; | |
148 | // Total height | |
149 | const Float_t AliTRDgeometry::fgkCH = AliTRDgeometry::fgkCraH | |
150 | + AliTRDgeometry::fgkCdrH | |
151 | + AliTRDgeometry::fgkCamH | |
152 | + AliTRDgeometry::fgkCroH; | |
153 | ||
154 | // Vertical spacing of the chambers | |
155 | const Float_t AliTRDgeometry::fgkVspace = 2.1; | |
156 | ||
157 | // Horizontal spacing of the chambers | |
158 | const Float_t AliTRDgeometry::fgkHspace = 2.0; | |
159 | ||
160 | // Thicknesses of different parts of the chamber frame | |
161 | // Lower aluminum frame | |
162 | const Float_t AliTRDgeometry::fgkCalT = 0.3; | |
163 | // Lower G10 frame sides | |
164 | const Float_t AliTRDgeometry::fgkCclsT = 0.3; | |
165 | // Lower G10 frame front | |
166 | const Float_t AliTRDgeometry::fgkCclfT = 1.0; | |
167 | // Upper G10 frame | |
168 | const Float_t AliTRDgeometry::fgkCcuT = 0.9; | |
169 | // Upper Al frame | |
170 | const Float_t AliTRDgeometry::fgkCauT = 1.5; | |
171 | ||
172 | // Additional width of the readout chamber frames | |
173 | const Float_t AliTRDgeometry::fgkCroW = 0.9; | |
174 | ||
175 | // Difference of outer chamber width and pad plane width | |
176 | const Float_t AliTRDgeometry::fgkCpadW = 1.0; | |
177 | const Float_t AliTRDgeometry::fgkRpadW = 1.5; | |
793ff80c | 178 | |
179 | // | |
180 | // Thickness of the the material layers | |
181 | // | |
db30bf0f | 182 | const Float_t AliTRDgeometry::fgkRaThick = 0.3646; |
793ff80c | 183 | const Float_t AliTRDgeometry::fgkMyThick = 0.005; |
0a770ac9 | 184 | const Float_t AliTRDgeometry::fgkDrThick = AliTRDgeometry::fgkCdrH; |
185 | const Float_t AliTRDgeometry::fgkAmThick = AliTRDgeometry::fgkCamH; | |
186 | const Float_t AliTRDgeometry::fgkXeThick = AliTRDgeometry::fgkDrThick | |
187 | + AliTRDgeometry::fgkAmThick; | |
793ff80c | 188 | const Float_t AliTRDgeometry::fgkCuThick = 0.001; |
189 | const Float_t AliTRDgeometry::fgkSuThick = 0.06; | |
190 | const Float_t AliTRDgeometry::fgkFeThick = 0.0044; | |
191 | const Float_t AliTRDgeometry::fgkCoThick = 0.02; | |
db30bf0f | 192 | const Float_t AliTRDgeometry::fgkWaThick = 0.02; |
793ff80c | 193 | |
194 | // | |
195 | // Position of the material layers | |
196 | // | |
0a770ac9 | 197 | const Float_t AliTRDgeometry::fgkRaZpos = -1.50; |
198 | const Float_t AliTRDgeometry::fgkMyZpos = 0.895; | |
199 | const Float_t AliTRDgeometry::fgkDrZpos = 2.4; | |
200 | const Float_t AliTRDgeometry::fgkAmZpos = 0.0; | |
201 | const Float_t AliTRDgeometry::fgkCuZpos = -0.9995; | |
793ff80c | 202 | const Float_t AliTRDgeometry::fgkSuZpos = 0.0000; |
0a770ac9 | 203 | const Float_t AliTRDgeometry::fgkFeZpos = 0.0322; |
204 | const Float_t AliTRDgeometry::fgkCoZpos = 0.97; | |
205 | const Float_t AliTRDgeometry::fgkWaZpos = 0.99; | |
793ff80c | 206 | |
f7336fa3 | 207 | //_____________________________________________________________________________ |
208 | AliTRDgeometry::AliTRDgeometry():AliGeometry() | |
209 | { | |
210 | // | |
211 | // AliTRDgeometry default constructor | |
212 | // | |
213 | ||
214 | Init(); | |
215 | ||
216 | } | |
217 | ||
218 | //_____________________________________________________________________________ | |
219 | AliTRDgeometry::~AliTRDgeometry() | |
220 | { | |
8230f242 | 221 | // |
222 | // AliTRDgeometry destructor | |
223 | // | |
f7336fa3 | 224 | |
225 | } | |
226 | ||
227 | //_____________________________________________________________________________ | |
228 | void AliTRDgeometry::Init() | |
229 | { | |
230 | // | |
231 | // Initializes the geometry parameter | |
232 | // | |
f7336fa3 | 233 | // The maximum number of pads |
234 | // and the position of pad 0,0,0 | |
235 | // | |
236 | // chambers seen from the top: | |
237 | // +----------------------------+ | |
238 | // | | | |
793ff80c | 239 | // | | ^ |
240 | // | | rphi| | |
241 | // | | | | |
242 | // |0 | | | |
243 | // +----------------------------+ +------> | |
f7336fa3 | 244 | // z |
793ff80c | 245 | // chambers seen from the side: ^ |
246 | // +----------------------------+ drift| | |
247 | // |0 | | | |
248 | // | | | | |
249 | // +----------------------------+ +------> | |
f7336fa3 | 250 | // z |
251 | // | |
a2b90f83 | 252 | // IMPORTANT: time bin 0 is now the first one in the drift region |
253 | // closest to the readout !!! | |
793ff80c | 254 | // |
f7336fa3 | 255 | |
0a770ac9 | 256 | Int_t icham; |
257 | Int_t iplan; | |
258 | Int_t isect; | |
259 | ||
260 | // The outer width of the chambers | |
261 | fCwidth[0] = 95.6; | |
262 | fCwidth[1] = 100.1; | |
263 | fCwidth[2] = 104.5; | |
264 | fCwidth[3] = 108.9; | |
265 | fCwidth[4] = 113.4; | |
266 | fCwidth[5] = 117.8; | |
267 | ||
268 | // The outer lengths of the chambers | |
269 | Float_t length[kNplan][kNcham] = { { 123.5, 123.5, 110.0, 123.5, 123.5 } | |
270 | , { 131.0, 131.0, 110.0, 131.0, 131.0 } | |
271 | , { 134.5, 138.5, 110.0, 138.5, 134.5 } | |
272 | , { 142.0, 146.0, 110.0, 146.0, 142.0 } | |
273 | , { 142.0, 153.0, 110.0, 153.0, 142.0 } | |
274 | , { 134.0, 160.5, 110.0, 160.5, 134.0 } }; | |
275 | ||
276 | for (icham = 0; icham < kNcham; icham++) { | |
277 | for (iplan = 0; iplan < kNplan; iplan++) { | |
278 | fClength[iplan][icham] = length[iplan][icham]; | |
279 | fClengthPH[iplan][icham] = 0.0; | |
280 | fClengthRH[iplan][icham] = 0.0; | |
281 | } | |
282 | } | |
283 | ||
284 | // The pad size in column direction (rphi-direction) | |
285 | SetColPadSize(0,0.65); | |
286 | SetColPadSize(1,0.68); | |
287 | SetColPadSize(2,0.71); | |
288 | SetColPadSize(3,0.74); | |
289 | SetColPadSize(4,0.77); | |
290 | SetColPadSize(5,0.80); | |
291 | ||
292 | // The pad row (z-direction) | |
293 | SetNRowPad(); | |
793ff80c | 294 | |
a2b90f83 | 295 | // The number of time bins. Default is 100 ns timbin size |
6244debe | 296 | SetNTimeBin(15); |
793ff80c | 297 | |
a2b90f83 | 298 | // Additional time bins before and after the drift region. |
299 | // Default is to only sample the drift region | |
300 | SetExpandTimeBin(0,0); | |
301 | ||
793ff80c | 302 | // The rotation matrix elements |
303 | Float_t phi = 0; | |
304 | for (isect = 0; isect < fgkNsect; isect++) { | |
305 | phi = -2.0 * kPI / (Float_t) fgkNsect * ((Float_t) isect + 0.5); | |
306 | fRotA11[isect] = TMath::Cos(phi); | |
307 | fRotA12[isect] = TMath::Sin(phi); | |
308 | fRotA21[isect] = TMath::Sin(phi); | |
309 | fRotA22[isect] = TMath::Cos(phi); | |
310 | phi = -1.0 * phi; | |
311 | fRotB11[isect] = TMath::Cos(phi); | |
312 | fRotB12[isect] = TMath::Sin(phi); | |
313 | fRotB21[isect] = TMath::Sin(phi); | |
314 | fRotB22[isect] = TMath::Cos(phi); | |
315 | } | |
316 | ||
317 | } | |
318 | ||
319 | //_____________________________________________________________________________ | |
0a770ac9 | 320 | void AliTRDgeometry::SetNRowPad(const Int_t p, const Int_t c, const Int_t npad) |
793ff80c | 321 | { |
322 | // | |
0a770ac9 | 323 | // Redefines the number of pads in raw direction for |
324 | // a given plane and chamber number | |
793ff80c | 325 | // |
326 | ||
0a770ac9 | 327 | for (Int_t isect = 0; isect < fgkNsect; isect++) { |
328 | ||
329 | fRowMax[p][c][isect] = npad; | |
330 | ||
331 | fRowPadSize[p][c][isect] = (fClength[p][c] - 2.*fgkRpadW) | |
332 | / ((Float_t) npad); | |
333 | ||
334 | } | |
335 | ||
336 | } | |
337 | ||
338 | //_____________________________________________________________________________ | |
339 | void AliTRDgeometry::SetNRowPad() | |
340 | { | |
341 | // | |
342 | // Defines the number of pads in row direction | |
343 | // | |
344 | ||
345 | Int_t isect; | |
346 | Int_t icham; | |
347 | Int_t iplan; | |
348 | ||
349 | Int_t rowMax[kNplan][kNcham] = { { 16, 16, 12, 16, 16 } | |
350 | , { 16, 16, 12, 16, 16 } | |
351 | , { 16, 16, 12, 16, 16 } | |
352 | , { 16, 16, 12, 16, 16 } | |
353 | , { 14, 16, 12, 16, 14 } | |
354 | , { 13, 16, 12, 16, 13 } }; | |
355 | ||
356 | for (isect = 0; isect < kNsect; isect++) { | |
357 | for (icham = 0; icham < kNcham; icham++) { | |
358 | for (iplan = 0; iplan < kNplan; iplan++) { | |
359 | ||
360 | fRowMax[iplan][icham][isect] = rowMax[iplan][icham]; | |
361 | ||
362 | fRowPadSize[iplan][icham][isect] = (fClength[iplan][icham] - 2.*fgkRpadW) | |
363 | / ((Float_t) rowMax[iplan][icham]); | |
364 | ||
365 | Float_t row0 = fgkRpadW - fClength[iplan][0] | |
366 | - fClength[iplan][1] | |
367 | - fClength[iplan][2]/2.; | |
368 | for (Int_t ic = 0; ic < icham; ic++) { | |
369 | row0 += fClength[iplan][ic]; | |
370 | } | |
371 | fRow0[iplan][icham][isect] = row0; | |
372 | ||
373 | } | |
374 | } | |
f7336fa3 | 375 | } |
376 | ||
793ff80c | 377 | } |
378 | ||
0a770ac9 | 379 | //_____________________________________________________________________________ |
380 | void AliTRDgeometry::SetColPadSize(const Int_t p, const Float_t s) | |
381 | { | |
382 | // | |
383 | // Redefines the pad size in column direction | |
384 | // | |
385 | ||
386 | fColPadSize[p] = s; | |
387 | fCol0[p] = - fCwidth[p]/2. + fgkCpadW; | |
388 | fColMax[p] = ((Int_t) ((fCwidth[p] - 2. * fgkCpadW) / s)); | |
389 | ||
390 | } | |
391 | ||
793ff80c | 392 | //_____________________________________________________________________________ |
a2b90f83 | 393 | void AliTRDgeometry::SetNTimeBin(const Int_t nbin) |
793ff80c | 394 | { |
395 | // | |
a2b90f83 | 396 | // Redefines the number of time bins in the drift region. |
397 | // The time bin width is defined by the length of the | |
398 | // drift region divided by <nbin>. | |
793ff80c | 399 | // |
400 | ||
71d9fa7b | 401 | fTimeMax = nbin; |
402 | fTimeBinSize = fgkDrThick / ((Float_t) fTimeMax); | |
793ff80c | 403 | for (Int_t iplan = 0; iplan < fgkNplan; iplan++) { |
0a770ac9 | 404 | fTime0[iplan] = fgkRmin + fgkCraH + fgkCdrH |
405 | + iplan * (fgkCH + fgkVspace); | |
793ff80c | 406 | } |
f7336fa3 | 407 | |
408 | } | |
409 | ||
410 | //_____________________________________________________________________________ | |
411 | void AliTRDgeometry::CreateGeometry(Int_t *idtmed) | |
412 | { | |
413 | // | |
0a770ac9 | 414 | // Create TRD geometry |
415 | // | |
f7336fa3 | 416 | |
417 | } | |
418 | ||
419 | //_____________________________________________________________________________ | |
94de3818 | 420 | Bool_t AliTRDgeometry::Local2Global(Int_t idet, Float_t *local, Float_t *global) const |
f7336fa3 | 421 | { |
422 | // | |
423 | // Converts local pad-coordinates (row,col,time) into | |
424 | // global ALICE reference frame coordinates (x,y,z) | |
425 | // | |
426 | ||
793ff80c | 427 | Int_t icham = GetChamber(idet); // Chamber info (0-4) |
428 | Int_t isect = GetSector(idet); // Sector info (0-17) | |
429 | Int_t iplan = GetPlane(idet); // Plane info (0-5) | |
f7336fa3 | 430 | |
6f1e466d | 431 | return Local2Global(iplan,icham,isect,local,global); |
f7336fa3 | 432 | |
433 | } | |
434 | ||
435 | //_____________________________________________________________________________ | |
436 | Bool_t AliTRDgeometry::Local2Global(Int_t iplan, Int_t icham, Int_t isect | |
94de3818 | 437 | , Float_t *local, Float_t *global) const |
f7336fa3 | 438 | { |
439 | // | |
440 | // Converts local pad-coordinates (row,col,time) into | |
441 | // global ALICE reference frame coordinates (x,y,z) | |
442 | // | |
443 | ||
793ff80c | 444 | Int_t idet = GetDetector(iplan,icham,isect); // Detector number |
f7336fa3 | 445 | |
16bf9884 | 446 | Float_t padRow = local[0]+0.5; // Pad Row position |
447 | Float_t padCol = local[1]+0.5; // Pad Column position | |
448 | Float_t timeSlice = local[2]+0.5; // Time "position" | |
f7336fa3 | 449 | |
793ff80c | 450 | Float_t row0 = GetRow0(iplan,icham,isect); |
451 | Float_t col0 = GetCol0(iplan); | |
452 | Float_t time0 = GetTime0(iplan); | |
f7336fa3 | 453 | |
793ff80c | 454 | Float_t rot[3]; |
f7336fa3 | 455 | |
456 | // calculate (x,y,z) position in rotated chamber | |
a2b90f83 | 457 | rot[0] = time0 - (timeSlice - fTimeBefore) * fTimeBinSize; |
458 | rot[1] = col0 + padCol * fColPadSize[iplan]; | |
459 | rot[2] = row0 + padRow * fRowPadSize[iplan][icham][isect]; | |
f7336fa3 | 460 | |
461 | // Rotate back to original position | |
462 | return RotateBack(idet,rot,global); | |
463 | ||
464 | } | |
465 | ||
466 | //_____________________________________________________________________________ | |
793ff80c | 467 | Bool_t AliTRDgeometry::Rotate(Int_t d, Float_t *pos, Float_t *rot) const |
f7336fa3 | 468 | { |
469 | // | |
470 | // Rotates all chambers in the position of sector 0 and transforms | |
471 | // the coordinates in the ALICE restframe <pos> into the | |
472 | // corresponding local frame <rot>. | |
473 | // | |
474 | ||
793ff80c | 475 | Int_t sector = GetSector(d); |
f7336fa3 | 476 | |
793ff80c | 477 | rot[0] = pos[0] * fRotA11[sector] + pos[1] * fRotA12[sector]; |
478 | rot[1] = -pos[0] * fRotA21[sector] + pos[1] * fRotA22[sector]; | |
f7336fa3 | 479 | rot[2] = pos[2]; |
480 | ||
481 | return kTRUE; | |
482 | ||
483 | } | |
484 | ||
485 | //_____________________________________________________________________________ | |
94de3818 | 486 | Bool_t AliTRDgeometry::RotateBack(Int_t d, Float_t *rot, Float_t *pos) const |
f7336fa3 | 487 | { |
488 | // | |
489 | // Rotates a chambers from the position of sector 0 into its | |
490 | // original position and transforms the corresponding local frame | |
491 | // coordinates <rot> into the coordinates of the ALICE restframe <pos>. | |
492 | // | |
493 | ||
793ff80c | 494 | Int_t sector = GetSector(d); |
f7336fa3 | 495 | |
793ff80c | 496 | pos[0] = rot[0] * fRotB11[sector] + rot[1] * fRotB12[sector]; |
497 | pos[1] = -rot[0] * fRotB21[sector] + rot[1] * fRotB22[sector]; | |
6f1e466d | 498 | pos[2] = rot[2]; |
f7336fa3 | 499 | |
500 | return kTRUE; | |
501 | ||
502 | } | |
503 | ||
504 | //_____________________________________________________________________________ | |
0a770ac9 | 505 | Int_t AliTRDgeometry::GetDetectorSec(const Int_t p, const Int_t c) const |
506 | { | |
507 | // | |
508 | // Convert plane / chamber into detector number for one single sector | |
509 | // | |
510 | ||
511 | return (p + c * fgkNplan); | |
512 | ||
513 | } | |
514 | ||
515 | //_____________________________________________________________________________ | |
ff821236 | 516 | Int_t AliTRDgeometry::GetDetector(const Int_t p, const Int_t c, const Int_t s) const |
f7336fa3 | 517 | { |
518 | // | |
519 | // Convert plane / chamber / sector into detector number | |
520 | // | |
521 | ||
793ff80c | 522 | return (p + c * fgkNplan + s * fgkNplan * fgkNcham); |
f7336fa3 | 523 | |
524 | } | |
525 | ||
526 | //_____________________________________________________________________________ | |
ff821236 | 527 | Int_t AliTRDgeometry::GetPlane(const Int_t d) const |
f7336fa3 | 528 | { |
529 | // | |
530 | // Reconstruct the plane number from the detector number | |
531 | // | |
532 | ||
793ff80c | 533 | return ((Int_t) (d % fgkNplan)); |
f7336fa3 | 534 | |
535 | } | |
536 | ||
537 | //_____________________________________________________________________________ | |
ff821236 | 538 | Int_t AliTRDgeometry::GetChamber(const Int_t d) const |
f7336fa3 | 539 | { |
540 | // | |
541 | // Reconstruct the chamber number from the detector number | |
542 | // | |
543 | ||
793ff80c | 544 | return ((Int_t) (d % (fgkNplan * fgkNcham)) / fgkNplan); |
f7336fa3 | 545 | |
546 | } | |
547 | ||
548 | //_____________________________________________________________________________ | |
ff821236 | 549 | Int_t AliTRDgeometry::GetSector(const Int_t d) const |
f7336fa3 | 550 | { |
551 | // | |
552 | // Reconstruct the sector number from the detector number | |
553 | // | |
554 | ||
793ff80c | 555 | return ((Int_t) (d / (fgkNplan * fgkNcham))); |
f7336fa3 | 556 | |
557 | } | |
558 | ||
559 | //_____________________________________________________________________________ | |
793ff80c | 560 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos |
561 | , TMatrix &mat) const | |
f7336fa3 | 562 | { |
563 | // | |
564 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
565 | // | |
566 | ||
567 | GetGlobal(p,pos); | |
9d0b222b | 568 | mat.Zero(); |
f7336fa3 | 569 | |
570 | } | |
571 | ||
572 | //_____________________________________________________________________________ | |
94de3818 | 573 | void AliTRDgeometry::GetGlobal(const AliRecPoint *p, TVector3 &pos) const |
f7336fa3 | 574 | { |
575 | // | |
576 | // Returns the global coordinate and error matrix of a AliTRDrecPoint | |
577 | // | |
578 | ||
579 | Int_t detector = ((AliTRDrecPoint *) p)->GetDetector(); | |
580 | ||
581 | Float_t global[3]; | |
582 | Float_t local[3]; | |
6f1e466d | 583 | local[0] = ((AliTRDrecPoint *) p)->GetLocalRow(); |
584 | local[1] = ((AliTRDrecPoint *) p)->GetLocalCol(); | |
585 | local[2] = ((AliTRDrecPoint *) p)->GetLocalTime(); | |
f7336fa3 | 586 | |
587 | if (Local2Global(detector,local,global)) { | |
588 | pos.SetX(global[0]); | |
589 | pos.SetY(global[1]); | |
590 | pos.SetZ(global[2]); | |
591 | } | |
592 | else { | |
593 | pos.SetX(0.0); | |
594 | pos.SetY(0.0); | |
595 | pos.SetZ(0.0); | |
596 | } | |
597 | ||
598 | } |