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e0d47c25 | 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 | /* $Id$ */ | |
17 | ||
18 | /////////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // Describes a pad plane of a TRD ROC // | |
21 | // // | |
22 | // Contains the information on pad postions, pad dimensions, // | |
23 | // tilting angle, etc. // | |
24 | // It also provides methods to identify the current pad number from // | |
25 | // global coordinates. // | |
3148e21a | 26 | // The numbering and coordinates should follow the official convention // |
27 | // (see David Emschermanns note on TRD convention // | |
e0d47c25 | 28 | // // |
29 | /////////////////////////////////////////////////////////////////////////////// | |
30 | ||
090026bf | 31 | #include <TMath.h> |
32 | ||
e0d47c25 | 33 | #include "AliTRDpadPlane.h" |
bd0f8685 | 34 | #include "AliTRDgeometry.h" |
e0d47c25 | 35 | |
36 | ClassImp(AliTRDpadPlane) | |
37 | ||
38 | //_____________________________________________________________________________ | |
2745a409 | 39 | AliTRDpadPlane::AliTRDpadPlane() |
40 | :TObject() | |
41 | ,fGeo(0) | |
42 | ,fPla(0) | |
43 | ,fCha(0) | |
44 | ,fLength(0) | |
45 | ,fWidth(0) | |
46 | ,fLengthRim(0) | |
47 | ,fWidthRim(0) | |
48 | ,fLengthOPad(0) | |
49 | ,fWidthOPad(0) | |
50 | ,fLengthIPad(0) | |
51 | ,fWidthIPad(0) | |
52 | ,fRowSpacing(0) | |
53 | ,fColSpacing(0) | |
54 | ,fNrows(0) | |
55 | ,fNcols(0) | |
56 | ,fTiltingAngle(0) | |
57 | ,fTiltingTan(0) | |
58 | ,fPadRow(0) | |
59 | ,fPadCol(0) | |
e0d47c25 | 60 | { |
61 | // | |
62 | // Default constructor | |
63 | // | |
64 | ||
e0d47c25 | 65 | } |
66 | ||
67 | //_____________________________________________________________________________ | |
2745a409 | 68 | AliTRDpadPlane::AliTRDpadPlane(Int_t p, Int_t c) |
69 | :TObject() | |
70 | ,fGeo(0) | |
71 | ,fPla(0) | |
72 | ,fCha(0) | |
73 | ,fLength(0) | |
74 | ,fWidth(0) | |
75 | ,fLengthRim(0) | |
76 | ,fWidthRim(0) | |
77 | ,fLengthOPad(0) | |
78 | ,fWidthOPad(0) | |
79 | ,fLengthIPad(0) | |
80 | ,fWidthIPad(0) | |
81 | ,fRowSpacing(0) | |
82 | ,fColSpacing(0) | |
83 | ,fNrows(0) | |
84 | ,fNcols(0) | |
85 | ,fTiltingAngle(0) | |
86 | ,fTiltingTan(0) | |
87 | ,fPadRow(0) | |
88 | ,fPadCol(0) | |
e0d47c25 | 89 | { |
90 | // | |
91 | // Constructor that initializes a given pad plane type | |
92 | // | |
93 | ||
bd0f8685 | 94 | fGeo = new AliTRDgeometry(); |
e0d47c25 | 95 | |
96 | fPla = p; | |
97 | fCha = c; | |
98 | ||
e0d47c25 | 99 | fRowSpacing = 0.0; |
100 | fColSpacing = 0.0; | |
101 | ||
102 | fLengthRim = 1.0; | |
103 | fWidthRim = 0.5; | |
104 | ||
105 | fNcols = 144; | |
106 | ||
107 | // | |
108 | // The pad plane parameter | |
109 | // | |
110 | switch (p) { | |
111 | case 0: | |
112 | if (c == 2) { | |
113 | // L0C0 type | |
114 | fNrows = 12; | |
115 | fLength = 108.0; | |
287c5d50 | 116 | fWidth = 92.2; |
e0d47c25 | 117 | fLengthOPad = 8.0; |
118 | fWidthOPad = 0.515; | |
119 | fLengthIPad = 9.0; | |
120 | fWidthIPad = 0.635; | |
121 | fTiltingAngle = -2.0; | |
122 | } | |
123 | else { | |
124 | // L0C1 type | |
125 | fNrows = 16; | |
126 | fLength = 122.0; | |
287c5d50 | 127 | fWidth = 92.2; |
e0d47c25 | 128 | fLengthOPad = 7.5; |
129 | fWidthOPad = 0.515; | |
130 | fLengthIPad = 7.5; | |
131 | fWidthIPad = 0.635; | |
132 | fTiltingAngle = -2.0; | |
133 | } | |
134 | break; | |
135 | case 1: | |
136 | if (c == 2) { | |
137 | // L1C0 type | |
138 | fNrows = 12; | |
139 | fLength = 108.0; | |
140 | fWidth = 96.6; | |
141 | fLengthOPad = 8.0; | |
142 | fWidthOPad = 0.585; | |
143 | fLengthIPad = 9.0; | |
144 | fWidthIPad = 0.665; | |
145 | fTiltingAngle = 2.0; | |
146 | } | |
147 | else { | |
148 | // L1C1 type | |
149 | fNrows = 16; | |
150 | fLength = 122.0; | |
151 | fWidth = 96.6; | |
152 | fLengthOPad = 7.5; | |
153 | fWidthOPad = 0.585; | |
154 | fLengthIPad = 7.5; | |
155 | fWidthIPad = 0.665; | |
156 | fTiltingAngle = 2.0; | |
157 | } | |
158 | break; | |
159 | case 2: | |
160 | if (c == 2) { | |
161 | // L2C0 type | |
162 | fNrows = 12; | |
163 | fLength = 108.0; | |
164 | fWidth = 101.1; | |
165 | fLengthOPad = 8.0; | |
166 | fWidthOPad = 0.705; | |
167 | fLengthIPad = 9.0; | |
168 | fWidthIPad = 0.695; | |
169 | fTiltingAngle = -2.0; | |
170 | } | |
171 | else { | |
172 | // L2C1 type | |
173 | fNrows = 16; | |
174 | fLength = 129.0; | |
175 | fWidth = 101.1; | |
176 | fLengthOPad = 7.5; | |
177 | fWidthOPad = 0.705; | |
178 | fLengthIPad = 8.0; | |
179 | fWidthIPad = 0.695; | |
180 | fTiltingAngle = -2.0; | |
181 | } | |
182 | break; | |
183 | case 3: | |
184 | if (c == 2) { | |
185 | // L3C0 type | |
186 | fNrows = 12; | |
187 | fLength = 108.0; | |
188 | fWidth = 105.5; | |
189 | fLengthOPad = 8.0; | |
190 | fWidthOPad = 0.775; | |
191 | fLengthIPad = 9.0; | |
192 | fWidthIPad = 0.725; | |
193 | fTiltingAngle = 2.0; | |
194 | } | |
195 | else { | |
196 | // L3C1 type | |
197 | fNrows = 16; | |
198 | fLength = 136.0; | |
199 | fWidth = 105.5; | |
200 | fLengthOPad = 7.5; | |
201 | fWidthOPad = 0.775; | |
202 | fLengthIPad = 8.5; | |
203 | fWidthIPad = 0.725; | |
204 | fTiltingAngle = 2.0; | |
205 | } | |
206 | break; | |
207 | case 4: | |
208 | if (c == 2) { | |
209 | // L4C0 type | |
210 | fNrows = 12; | |
211 | fLength = 108.0; | |
212 | fWidth = 109.9; | |
213 | fLengthOPad = 8.0; | |
214 | fWidthOPad = 0.845; | |
215 | fLengthIPad = 9.0; | |
216 | fWidthIPad = 0.755; | |
217 | fTiltingAngle = -2.0; | |
218 | } | |
219 | else { | |
220 | // L4C1 type | |
221 | fNrows = 16; | |
222 | fLength = 143.0; | |
223 | fWidth = 109.9; | |
224 | fLengthOPad = 7.5; | |
225 | fWidthOPad = 0.845; | |
226 | fLengthIPad = 9.0; | |
227 | fWidthIPad = 0.755; | |
228 | fTiltingAngle = -2.0; | |
229 | } | |
230 | break; | |
231 | case 5: | |
232 | if (c == 2) { | |
233 | // L5C0 type | |
234 | fNrows = 12; | |
235 | fLength = 108.0; | |
236 | fWidth = 114.4; | |
237 | fLengthOPad = 8.0; | |
238 | fWidthOPad = 0.965; | |
239 | fLengthIPad = 9.0; | |
240 | fWidthIPad = 0.785; | |
241 | fTiltingAngle = 2.0; | |
242 | } | |
243 | else { | |
244 | // L5C1 type | |
245 | fNrows = 16; | |
246 | fLength = 145.0; | |
247 | fWidth = 114.4; | |
248 | fLengthOPad = 8.5; | |
249 | fWidthOPad = 0.965; | |
250 | fLengthIPad = 9.0; | |
251 | fWidthIPad = 0.785; | |
252 | fTiltingAngle = 2.0; | |
253 | } | |
254 | break; | |
255 | }; | |
256 | ||
a5cadd36 | 257 | // |
2f4fac20 | 258 | // Store tilting angle as tangens |
a5cadd36 | 259 | // |
2f4fac20 | 260 | fTiltingTan = TMath::Tan(TMath::Pi()/180.0 * fTiltingAngle); |
a5cadd36 | 261 | |
e0d47c25 | 262 | // |
263 | // The positions of the borders of the pads | |
264 | // | |
265 | // Row direction | |
266 | // | |
e0d47c25 | 267 | fPadRow = new Double_t[fNrows]; |
268 | Double_t row = fGeo->GetChamberLength(p,0) | |
269 | + fGeo->GetChamberLength(p,1) | |
f881dc35 | 270 | + fGeo->GetChamberLength(p,2) / 2.0 |
a5cadd36 | 271 | - fGeo->RpadW() |
e0d47c25 | 272 | - fLengthRim; |
273 | for (Int_t ic = 0; ic < c; ic++) { | |
274 | row -= fGeo->GetChamberLength(p,ic); | |
275 | } | |
276 | for (Int_t ir = 0; ir < fNrows; ir++) { | |
277 | fPadRow[ir] = row; | |
278 | row -= fRowSpacing; | |
a5cadd36 | 279 | if (ir == 0) { |
e0d47c25 | 280 | row -= fLengthOPad; |
281 | } | |
282 | else { | |
283 | row -= fLengthIPad; | |
284 | } | |
285 | } | |
286 | // | |
287 | // Column direction | |
288 | // | |
e0d47c25 | 289 | fPadCol = new Double_t[fNcols]; |
f881dc35 | 290 | Double_t col = fGeo->GetChamberWidth(p) / 2.0 |
287c5d50 | 291 | + fGeo->CroWid() |
e0d47c25 | 292 | - fWidthRim; |
293 | for (Int_t ic = 0; ic < fNcols; ic++) { | |
294 | fPadCol[ic] = col; | |
295 | col -= fColSpacing; | |
a5cadd36 | 296 | if (ic == 0) { |
e0d47c25 | 297 | col -= fWidthOPad; |
298 | } | |
299 | else { | |
300 | col -= fWidthIPad; | |
301 | } | |
302 | } | |
303 | ||
304 | } | |
305 | ||
306 | //_____________________________________________________________________________ | |
2745a409 | 307 | AliTRDpadPlane::AliTRDpadPlane(const AliTRDpadPlane &p) |
308 | :TObject(p) | |
309 | ,fGeo(0) | |
310 | ,fPla(p.fPla) | |
311 | ,fCha(p.fCha) | |
312 | ,fLength(p.fLength) | |
313 | ,fWidth(p.fWidth) | |
314 | ,fLengthRim(p.fLengthRim) | |
315 | ,fWidthRim(p.fLengthRim) | |
316 | ,fLengthOPad(p.fLengthOPad) | |
317 | ,fWidthOPad(p.fWidthOPad) | |
318 | ,fLengthIPad(p.fLengthIPad) | |
319 | ,fWidthIPad(p.fWidthIPad) | |
320 | ,fRowSpacing(p.fRowSpacing) | |
321 | ,fColSpacing(p.fColSpacing) | |
322 | ,fNrows(p.fNrows) | |
323 | ,fNcols(p.fNcols) | |
324 | ,fTiltingAngle(p.fTiltingAngle) | |
325 | ,fTiltingTan(p.fTiltingTan) | |
326 | ,fPadRow(0) | |
327 | ,fPadCol(0) | |
e0d47c25 | 328 | { |
329 | // | |
330 | // AliTRDpadPlane copy constructor | |
331 | // | |
332 | ||
2745a409 | 333 | Int_t iBin = 0; |
334 | ||
f881dc35 | 335 | if (((AliTRDpadPlane &) p).fPadRow) { |
336 | delete [] ((AliTRDpadPlane &) p).fPadRow; | |
337 | } | |
2745a409 | 338 | ((AliTRDpadPlane &) p).fPadRow = new Double_t[fNrows]; |
339 | for (iBin = 0; iBin < fNrows; iBin++) { | |
340 | ((AliTRDpadPlane &) p).fPadRow[iBin] = fPadRow[iBin]; | |
341 | } | |
342 | ||
f881dc35 | 343 | if (((AliTRDpadPlane &) p).fPadCol) { |
344 | delete [] ((AliTRDpadPlane &) p).fPadCol; | |
345 | } | |
2745a409 | 346 | ((AliTRDpadPlane &) p).fPadCol = new Double_t[fNrows]; |
347 | for (iBin = 0; iBin < fNrows; iBin++) { | |
348 | ((AliTRDpadPlane &) p).fPadCol[iBin] = fPadCol[iBin]; | |
349 | } | |
e0d47c25 | 350 | |
351 | } | |
352 | ||
353 | //_____________________________________________________________________________ | |
354 | AliTRDpadPlane::~AliTRDpadPlane() | |
355 | { | |
356 | // | |
357 | // AliTRDpadPlane destructor | |
358 | // | |
359 | ||
360 | if (fGeo) { | |
361 | delete fGeo; | |
362 | fGeo = 0; | |
363 | } | |
364 | ||
365 | if (fPadRow) { | |
366 | delete [] fPadRow; | |
367 | fPadRow = 0; | |
368 | } | |
369 | ||
370 | if (fPadCol) { | |
371 | delete [] fPadCol; | |
372 | fPadCol = 0; | |
373 | } | |
374 | ||
375 | } | |
376 | ||
3c537e64 | 377 | //_____________________________________________________________________________ |
378 | AliTRDpadPlane &AliTRDpadPlane::operator=(const AliTRDpadPlane &p) | |
379 | { | |
380 | // | |
381 | // Assignment operator | |
382 | // | |
383 | ||
f881dc35 | 384 | if (this != &p) { |
385 | ((AliTRDpadPlane &) p).Copy(*this); | |
386 | } | |
387 | ||
3c537e64 | 388 | return *this; |
389 | ||
390 | } | |
391 | ||
e0d47c25 | 392 | //_____________________________________________________________________________ |
393 | void AliTRDpadPlane::Copy(TObject &p) const | |
394 | { | |
395 | // | |
396 | // Copy function | |
397 | // | |
398 | ||
399 | Int_t iBin = 0; | |
400 | ||
401 | ((AliTRDpadPlane &) p).fGeo = 0; | |
402 | ||
403 | ((AliTRDpadPlane &) p).fPla = fPla; | |
404 | ((AliTRDpadPlane &) p).fCha = fCha; | |
405 | ||
406 | ((AliTRDpadPlane &) p).fLength = fLength; | |
407 | ((AliTRDpadPlane &) p).fWidth = fWidth; | |
408 | ((AliTRDpadPlane &) p).fLengthRim = fLengthRim; | |
409 | ((AliTRDpadPlane &) p).fWidthRim = fWidthRim; | |
410 | ((AliTRDpadPlane &) p).fLengthOPad = fLengthOPad; | |
411 | ((AliTRDpadPlane &) p).fWidthOPad = fWidthOPad; | |
412 | ((AliTRDpadPlane &) p).fLengthIPad = fLengthIPad; | |
413 | ((AliTRDpadPlane &) p).fWidthIPad = fWidthIPad; | |
414 | ||
415 | ((AliTRDpadPlane &) p).fRowSpacing = fRowSpacing; | |
416 | ((AliTRDpadPlane &) p).fColSpacing = fColSpacing; | |
417 | ||
418 | ((AliTRDpadPlane &) p).fNrows = fNrows; | |
419 | ((AliTRDpadPlane &) p).fNcols = fNcols; | |
420 | ||
421 | ((AliTRDpadPlane &) p).fTiltingAngle = fTiltingAngle; | |
4ffb371b | 422 | ((AliTRDpadPlane &) p).fTiltingTan = fTiltingTan; |
e0d47c25 | 423 | |
f881dc35 | 424 | if (((AliTRDpadPlane &) p).fPadRow) { |
425 | delete [] ((AliTRDpadPlane &) p).fPadRow; | |
426 | } | |
e0d47c25 | 427 | ((AliTRDpadPlane &) p).fPadRow = new Double_t[fNrows]; |
428 | for (iBin = 0; iBin < fNrows; iBin++) { | |
429 | ((AliTRDpadPlane &) p).fPadRow[iBin] = fPadRow[iBin]; | |
430 | } | |
431 | ||
f881dc35 | 432 | if (((AliTRDpadPlane &) p).fPadCol) { |
433 | delete [] ((AliTRDpadPlane &) p).fPadCol; | |
434 | } | |
e0d47c25 | 435 | ((AliTRDpadPlane &) p).fPadCol = new Double_t[fNrows]; |
436 | for (iBin = 0; iBin < fNrows; iBin++) { | |
437 | ((AliTRDpadPlane &) p).fPadCol[iBin] = fPadCol[iBin]; | |
438 | } | |
439 | ||
440 | TObject::Copy(p); | |
441 | ||
442 | } | |
443 | ||
444 | //_____________________________________________________________________________ | |
98ce8151 | 445 | Int_t AliTRDpadPlane::GetPadRowNumber(Double_t z) const |
e0d47c25 | 446 | { |
447 | // | |
448 | // Finds the pad row number for a given global z-position | |
449 | // | |
450 | ||
451 | Int_t row = 0; | |
452 | Int_t nabove = 0; | |
453 | Int_t nbelow = 0; | |
454 | Int_t middle = 0; | |
455 | ||
f881dc35 | 456 | if ((z > GetRow0() ) || |
457 | (z < GetRowEnd())) { | |
a5cadd36 | 458 | |
e0d47c25 | 459 | row = -1; |
a5cadd36 | 460 | |
e0d47c25 | 461 | } |
462 | else { | |
a5cadd36 | 463 | |
f881dc35 | 464 | nabove = fNrows + 1; |
e0d47c25 | 465 | nbelow = 0; |
466 | while (nabove - nbelow > 1) { | |
467 | middle = (nabove + nbelow) / 2; | |
f881dc35 | 468 | if (z == fPadRow[middle-1]) { |
469 | row = middle; | |
470 | } | |
471 | if (z > fPadRow[middle-1]) { | |
472 | nabove = middle; | |
473 | } | |
474 | else { | |
475 | nbelow = middle; | |
476 | } | |
e0d47c25 | 477 | } |
478 | row = nbelow - 1; | |
a5cadd36 | 479 | |
e0d47c25 | 480 | } |
481 | ||
482 | return row; | |
483 | ||
484 | } | |
485 | ||
486 | //_____________________________________________________________________________ | |
98ce8151 | 487 | Int_t AliTRDpadPlane::GetPadColNumber(Double_t rphi |
f881dc35 | 488 | , Double_t /*rowOffset*/) const |
e0d47c25 | 489 | { |
490 | // | |
491 | // Finds the pad column number for a given global rphi-position | |
492 | // | |
493 | ||
f881dc35 | 494 | Int_t col = 0; |
495 | Int_t nabove = 0; | |
496 | Int_t nbelow = 0; | |
497 | Int_t middle = 0; | |
2f4fac20 | 498 | |
f881dc35 | 499 | if ((rphi > GetCol0() ) || |
500 | (rphi < GetColEnd())) { | |
e0d47c25 | 501 | |
e0d47c25 | 502 | col = -1; |
a5cadd36 | 503 | |
e0d47c25 | 504 | } |
505 | else { | |
a5cadd36 | 506 | |
f881dc35 | 507 | nabove = fNcols + 1; |
e0d47c25 | 508 | nbelow = 0; |
509 | while (nabove - nbelow > 1) { | |
510 | middle = (nabove + nbelow) / 2; | |
f881dc35 | 511 | if (rphi == fPadCol[middle-1]) { |
512 | col = middle; | |
513 | } | |
514 | if (rphi > fPadCol[middle-1]) { | |
515 | nabove = middle; | |
516 | } | |
517 | else { | |
518 | nbelow = middle; | |
519 | } | |
e0d47c25 | 520 | } |
521 | col = nbelow - 1; | |
e0d47c25 | 522 | |
e0d47c25 | 523 | } |
e0d47c25 | 524 | |
a5cadd36 | 525 | return col; |
e0d47c25 | 526 | |
527 | } |