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