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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. // | |
26 | // // | |
27 | /////////////////////////////////////////////////////////////////////////////// | |
28 | ||
29 | #include "AliTRDpadPlane.h" | |
30 | #include "AliTRDgeometryFull.h" | |
31 | ||
32 | ClassImp(AliTRDpadPlane) | |
33 | ||
34 | //_____________________________________________________________________________ | |
35 | AliTRDpadPlane::AliTRDpadPlane():TObject() | |
36 | { | |
37 | // | |
38 | // Default constructor | |
39 | // | |
40 | ||
41 | fGeo = 0; | |
42 | ||
43 | fPla = 0; | |
44 | fCha = 0; | |
45 | ||
46 | fLength = 0.0; | |
47 | fWidth = 0.0; | |
48 | fLengthRim = 0.0; | |
49 | fWidthRim = 0.0; | |
50 | fLengthOPad = 0.0; | |
51 | fWidthOPad = 0.0; | |
52 | fLengthIPad = 0.0; | |
53 | fWidthIPad = 0.0; | |
54 | ||
55 | fRowSpacing = 0.0; | |
56 | fColSpacing = 0.0; | |
57 | ||
58 | fNrows = 0; | |
59 | fNcols = 0; | |
60 | ||
61 | fPadRow = 0; | |
62 | fPadCol = 0; | |
63 | ||
64 | fTiltingAngle = 0.0; | |
4ffb371b | 65 | fTiltingTan = 0.0; |
e0d47c25 | 66 | |
67 | } | |
68 | ||
69 | //_____________________________________________________________________________ | |
a0cd5002 | 70 | AliTRDpadPlane::AliTRDpadPlane(Int_t p, Int_t c):TObject(),fPadRow(0),fPadCol(0) |
e0d47c25 | 71 | { |
72 | // | |
73 | // Constructor that initializes a given pad plane type | |
74 | // | |
75 | ||
76 | fGeo = new AliTRDgeometryFull(); | |
77 | ||
78 | fPla = p; | |
79 | fCha = c; | |
80 | ||
e0d47c25 | 81 | fRowSpacing = 0.0; |
82 | fColSpacing = 0.0; | |
83 | ||
84 | fLengthRim = 1.0; | |
85 | fWidthRim = 0.5; | |
86 | ||
87 | fNcols = 144; | |
88 | ||
89 | // | |
90 | // The pad plane parameter | |
91 | // | |
92 | switch (p) { | |
93 | case 0: | |
94 | if (c == 2) { | |
95 | // L0C0 type | |
96 | fNrows = 12; | |
97 | fLength = 108.0; | |
287c5d50 | 98 | fWidth = 92.2; |
e0d47c25 | 99 | fLengthOPad = 8.0; |
100 | fWidthOPad = 0.515; | |
101 | fLengthIPad = 9.0; | |
102 | fWidthIPad = 0.635; | |
103 | fTiltingAngle = -2.0; | |
104 | } | |
105 | else { | |
106 | // L0C1 type | |
107 | fNrows = 16; | |
108 | fLength = 122.0; | |
287c5d50 | 109 | fWidth = 92.2; |
e0d47c25 | 110 | fLengthOPad = 7.5; |
111 | fWidthOPad = 0.515; | |
112 | fLengthIPad = 7.5; | |
113 | fWidthIPad = 0.635; | |
114 | fTiltingAngle = -2.0; | |
115 | } | |
116 | break; | |
117 | case 1: | |
118 | if (c == 2) { | |
119 | // L1C0 type | |
120 | fNrows = 12; | |
121 | fLength = 108.0; | |
122 | fWidth = 96.6; | |
123 | fLengthOPad = 8.0; | |
124 | fWidthOPad = 0.585; | |
125 | fLengthIPad = 9.0; | |
126 | fWidthIPad = 0.665; | |
127 | fTiltingAngle = 2.0; | |
128 | } | |
129 | else { | |
130 | // L1C1 type | |
131 | fNrows = 16; | |
132 | fLength = 122.0; | |
133 | fWidth = 96.6; | |
134 | fLengthOPad = 7.5; | |
135 | fWidthOPad = 0.585; | |
136 | fLengthIPad = 7.5; | |
137 | fWidthIPad = 0.665; | |
138 | fTiltingAngle = 2.0; | |
139 | } | |
140 | break; | |
141 | case 2: | |
142 | if (c == 2) { | |
143 | // L2C0 type | |
144 | fNrows = 12; | |
145 | fLength = 108.0; | |
146 | fWidth = 101.1; | |
147 | fLengthOPad = 8.0; | |
148 | fWidthOPad = 0.705; | |
149 | fLengthIPad = 9.0; | |
150 | fWidthIPad = 0.695; | |
151 | fTiltingAngle = -2.0; | |
152 | } | |
153 | else { | |
154 | // L2C1 type | |
155 | fNrows = 16; | |
156 | fLength = 129.0; | |
157 | fWidth = 101.1; | |
158 | fLengthOPad = 7.5; | |
159 | fWidthOPad = 0.705; | |
160 | fLengthIPad = 8.0; | |
161 | fWidthIPad = 0.695; | |
162 | fTiltingAngle = -2.0; | |
163 | } | |
164 | break; | |
165 | case 3: | |
166 | if (c == 2) { | |
167 | // L3C0 type | |
168 | fNrows = 12; | |
169 | fLength = 108.0; | |
170 | fWidth = 105.5; | |
171 | fLengthOPad = 8.0; | |
172 | fWidthOPad = 0.775; | |
173 | fLengthIPad = 9.0; | |
174 | fWidthIPad = 0.725; | |
175 | fTiltingAngle = 2.0; | |
176 | } | |
177 | else { | |
178 | // L3C1 type | |
179 | fNrows = 16; | |
180 | fLength = 136.0; | |
181 | fWidth = 105.5; | |
182 | fLengthOPad = 7.5; | |
183 | fWidthOPad = 0.775; | |
184 | fLengthIPad = 8.5; | |
185 | fWidthIPad = 0.725; | |
186 | fTiltingAngle = 2.0; | |
187 | } | |
188 | break; | |
189 | case 4: | |
190 | if (c == 2) { | |
191 | // L4C0 type | |
192 | fNrows = 12; | |
193 | fLength = 108.0; | |
194 | fWidth = 109.9; | |
195 | fLengthOPad = 8.0; | |
196 | fWidthOPad = 0.845; | |
197 | fLengthIPad = 9.0; | |
198 | fWidthIPad = 0.755; | |
199 | fTiltingAngle = -2.0; | |
200 | } | |
201 | else { | |
202 | // L4C1 type | |
203 | fNrows = 16; | |
204 | fLength = 143.0; | |
205 | fWidth = 109.9; | |
206 | fLengthOPad = 7.5; | |
207 | fWidthOPad = 0.845; | |
208 | fLengthIPad = 9.0; | |
209 | fWidthIPad = 0.755; | |
210 | fTiltingAngle = -2.0; | |
211 | } | |
212 | break; | |
213 | case 5: | |
214 | if (c == 2) { | |
215 | // L5C0 type | |
216 | fNrows = 12; | |
217 | fLength = 108.0; | |
218 | fWidth = 114.4; | |
219 | fLengthOPad = 8.0; | |
220 | fWidthOPad = 0.965; | |
221 | fLengthIPad = 9.0; | |
222 | fWidthIPad = 0.785; | |
223 | fTiltingAngle = 2.0; | |
224 | } | |
225 | else { | |
226 | // L5C1 type | |
227 | fNrows = 16; | |
228 | fLength = 145.0; | |
229 | fWidth = 114.4; | |
230 | fLengthOPad = 8.5; | |
231 | fWidthOPad = 0.965; | |
232 | fLengthIPad = 9.0; | |
233 | fWidthIPad = 0.785; | |
234 | fTiltingAngle = 2.0; | |
235 | } | |
236 | break; | |
237 | }; | |
238 | ||
a5cadd36 | 239 | // |
2f4fac20 | 240 | // Store tilting angle as tangens |
a5cadd36 | 241 | // |
2f4fac20 | 242 | fTiltingTan = TMath::Tan(TMath::Pi()/180.0 * fTiltingAngle); |
a5cadd36 | 243 | |
e0d47c25 | 244 | // |
245 | // The positions of the borders of the pads | |
246 | // | |
247 | // Row direction | |
248 | // | |
e0d47c25 | 249 | fPadRow = new Double_t[fNrows]; |
250 | Double_t row = fGeo->GetChamberLength(p,0) | |
251 | + fGeo->GetChamberLength(p,1) | |
252 | + fGeo->GetChamberLength(p,2) / 2. | |
a5cadd36 | 253 | - fGeo->RpadW() |
e0d47c25 | 254 | - fLengthRim; |
255 | for (Int_t ic = 0; ic < c; ic++) { | |
256 | row -= fGeo->GetChamberLength(p,ic); | |
257 | } | |
258 | for (Int_t ir = 0; ir < fNrows; ir++) { | |
259 | fPadRow[ir] = row; | |
260 | row -= fRowSpacing; | |
a5cadd36 | 261 | if (ir == 0) { |
e0d47c25 | 262 | row -= fLengthOPad; |
263 | } | |
264 | else { | |
265 | row -= fLengthIPad; | |
266 | } | |
267 | } | |
268 | // | |
269 | // Column direction | |
270 | // | |
e0d47c25 | 271 | fPadCol = new Double_t[fNcols]; |
272 | Double_t col = fGeo->GetChamberWidth(p) / 2. | |
287c5d50 | 273 | + fGeo->CroWid() |
e0d47c25 | 274 | - fWidthRim; |
275 | for (Int_t ic = 0; ic < fNcols; ic++) { | |
276 | fPadCol[ic] = col; | |
277 | col -= fColSpacing; | |
a5cadd36 | 278 | if (ic == 0) { |
e0d47c25 | 279 | col -= fWidthOPad; |
280 | } | |
281 | else { | |
282 | col -= fWidthIPad; | |
283 | } | |
284 | } | |
285 | ||
286 | } | |
287 | ||
288 | //_____________________________________________________________________________ | |
289 | AliTRDpadPlane::AliTRDpadPlane(const AliTRDpadPlane &p):TObject(p) | |
290 | { | |
291 | // | |
292 | // AliTRDpadPlane copy constructor | |
293 | // | |
294 | ||
295 | ((AliTRDpadPlane &) p).Copy(*this); | |
296 | ||
297 | } | |
298 | ||
299 | //_____________________________________________________________________________ | |
300 | AliTRDpadPlane::~AliTRDpadPlane() | |
301 | { | |
302 | // | |
303 | // AliTRDpadPlane destructor | |
304 | // | |
305 | ||
306 | if (fGeo) { | |
307 | delete fGeo; | |
308 | fGeo = 0; | |
309 | } | |
310 | ||
311 | if (fPadRow) { | |
312 | delete [] fPadRow; | |
313 | fPadRow = 0; | |
314 | } | |
315 | ||
316 | if (fPadCol) { | |
317 | delete [] fPadCol; | |
318 | fPadCol = 0; | |
319 | } | |
320 | ||
321 | } | |
322 | ||
3c537e64 | 323 | //_____________________________________________________________________________ |
324 | AliTRDpadPlane &AliTRDpadPlane::operator=(const AliTRDpadPlane &p) | |
325 | { | |
326 | // | |
327 | // Assignment operator | |
328 | // | |
329 | ||
330 | if (this != &p) ((AliTRDpadPlane &) p).Copy(*this); | |
331 | return *this; | |
332 | ||
333 | } | |
334 | ||
e0d47c25 | 335 | //_____________________________________________________________________________ |
336 | void AliTRDpadPlane::Copy(TObject &p) const | |
337 | { | |
338 | // | |
339 | // Copy function | |
340 | // | |
341 | ||
342 | Int_t iBin = 0; | |
343 | ||
344 | ((AliTRDpadPlane &) p).fGeo = 0; | |
345 | ||
346 | ((AliTRDpadPlane &) p).fPla = fPla; | |
347 | ((AliTRDpadPlane &) p).fCha = fCha; | |
348 | ||
349 | ((AliTRDpadPlane &) p).fLength = fLength; | |
350 | ((AliTRDpadPlane &) p).fWidth = fWidth; | |
351 | ((AliTRDpadPlane &) p).fLengthRim = fLengthRim; | |
352 | ((AliTRDpadPlane &) p).fWidthRim = fWidthRim; | |
353 | ((AliTRDpadPlane &) p).fLengthOPad = fLengthOPad; | |
354 | ((AliTRDpadPlane &) p).fWidthOPad = fWidthOPad; | |
355 | ((AliTRDpadPlane &) p).fLengthIPad = fLengthIPad; | |
356 | ((AliTRDpadPlane &) p).fWidthIPad = fWidthIPad; | |
357 | ||
358 | ((AliTRDpadPlane &) p).fRowSpacing = fRowSpacing; | |
359 | ((AliTRDpadPlane &) p).fColSpacing = fColSpacing; | |
360 | ||
361 | ((AliTRDpadPlane &) p).fNrows = fNrows; | |
362 | ((AliTRDpadPlane &) p).fNcols = fNcols; | |
363 | ||
364 | ((AliTRDpadPlane &) p).fTiltingAngle = fTiltingAngle; | |
4ffb371b | 365 | ((AliTRDpadPlane &) p).fTiltingTan = fTiltingTan; |
e0d47c25 | 366 | |
367 | if (((AliTRDpadPlane &) p).fPadRow) delete [] ((AliTRDpadPlane &) p).fPadRow; | |
368 | ((AliTRDpadPlane &) p).fPadRow = new Double_t[fNrows]; | |
369 | for (iBin = 0; iBin < fNrows; iBin++) { | |
370 | ((AliTRDpadPlane &) p).fPadRow[iBin] = fPadRow[iBin]; | |
371 | } | |
372 | ||
373 | if (((AliTRDpadPlane &) p).fPadCol) delete [] ((AliTRDpadPlane &) p).fPadCol; | |
374 | ((AliTRDpadPlane &) p).fPadCol = new Double_t[fNrows]; | |
375 | for (iBin = 0; iBin < fNrows; iBin++) { | |
376 | ((AliTRDpadPlane &) p).fPadCol[iBin] = fPadCol[iBin]; | |
377 | } | |
378 | ||
379 | TObject::Copy(p); | |
380 | ||
381 | } | |
382 | ||
383 | //_____________________________________________________________________________ | |
98ce8151 | 384 | Int_t AliTRDpadPlane::GetPadRowNumber(Double_t z) const |
e0d47c25 | 385 | { |
386 | // | |
387 | // Finds the pad row number for a given global z-position | |
388 | // | |
389 | ||
390 | Int_t row = 0; | |
391 | Int_t nabove = 0; | |
392 | Int_t nbelow = 0; | |
393 | Int_t middle = 0; | |
394 | ||
a5cadd36 | 395 | if ((z > GetRow0()) || (z < GetRowEnd())) { |
396 | ||
e0d47c25 | 397 | row = -1; |
a5cadd36 | 398 | |
e0d47c25 | 399 | } |
400 | else { | |
a5cadd36 | 401 | |
e0d47c25 | 402 | nabove = fNrows+1; |
403 | nbelow = 0; | |
404 | while (nabove - nbelow > 1) { | |
405 | middle = (nabove + nbelow) / 2; | |
406 | if (z == fPadRow[middle-1]) row = middle; | |
407 | if (z > fPadRow[middle-1]) nabove = middle; | |
408 | else nbelow = middle; | |
409 | } | |
410 | row = nbelow - 1; | |
a5cadd36 | 411 | |
e0d47c25 | 412 | } |
413 | ||
414 | return row; | |
415 | ||
416 | } | |
417 | ||
418 | //_____________________________________________________________________________ | |
98ce8151 | 419 | Int_t AliTRDpadPlane::GetPadColNumber(Double_t rphi |
21d9fcf1 | 420 | , Double_t /*rowOffset*/) const |
e0d47c25 | 421 | { |
422 | // | |
423 | // Finds the pad column number for a given global rphi-position | |
424 | // | |
425 | ||
a5cadd36 | 426 | Int_t col = 0; |
427 | Int_t nabove = 0; | |
428 | Int_t nbelow = 0; | |
429 | Int_t middle = 0; | |
430 | Double_t rphiShift = 0; | |
431 | ||
21d9fcf1 | 432 | // MI change don't apply tilting angle here - better to do it directly on hit level |
2f4fac20 | 433 | // Take the tilting angle into account by shifting the hit position |
434 | // into the opposite direction | |
21d9fcf1 | 435 | // |
436 | ||
437 | ||
438 | rphiShift = rphi ; | |
2f4fac20 | 439 | |
440 | if ((rphiShift > GetCol0()) || (rphiShift < GetColEnd())) { | |
e0d47c25 | 441 | |
e0d47c25 | 442 | col = -1; |
a5cadd36 | 443 | |
e0d47c25 | 444 | } |
445 | else { | |
a5cadd36 | 446 | |
e0d47c25 | 447 | nabove = fNcols+1; |
448 | nbelow = 0; | |
449 | while (nabove - nbelow > 1) { | |
450 | middle = (nabove + nbelow) / 2; | |
2f4fac20 | 451 | if (rphiShift == fPadCol[middle-1]) col = middle; |
452 | if (rphiShift > fPadCol[middle-1]) nabove = middle; | |
453 | else nbelow = middle; | |
e0d47c25 | 454 | } |
455 | col = nbelow - 1; | |
e0d47c25 | 456 | |
e0d47c25 | 457 | } |
e0d47c25 | 458 | |
a5cadd36 | 459 | return col; |
e0d47c25 | 460 | |
461 | } |