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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() | |
053767a4 | 41 | ,fLayer(0) |
42 | ,fStack(0) | |
2745a409 | 43 | ,fLength(0) |
44 | ,fWidth(0) | |
45 | ,fLengthRim(0) | |
46 | ,fWidthRim(0) | |
47 | ,fLengthOPad(0) | |
48 | ,fWidthOPad(0) | |
49 | ,fLengthIPad(0) | |
50 | ,fWidthIPad(0) | |
51 | ,fRowSpacing(0) | |
52 | ,fColSpacing(0) | |
53 | ,fNrows(0) | |
54 | ,fNcols(0) | |
55 | ,fTiltingAngle(0) | |
56 | ,fTiltingTan(0) | |
57 | ,fPadRow(0) | |
58 | ,fPadCol(0) | |
4329977a | 59 | ,fPadRowSMOffset(0) |
58897a75 | 60 | ,fAnodeWireOffset(0) |
e0d47c25 | 61 | { |
62 | // | |
63 | // Default constructor | |
64 | // | |
65 | ||
e0d47c25 | 66 | } |
67 | ||
5dfd5caf | 68 | //_____________________________________________________________________________ |
053767a4 | 69 | AliTRDpadPlane::AliTRDpadPlane(Int_t layer, Int_t stack) |
5dfd5caf | 70 | :TObject() |
053767a4 | 71 | ,fLayer(layer) |
72 | ,fStack(stack) | |
5dfd5caf | 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) | |
89 | ,fPadRowSMOffset(0) | |
58897a75 | 90 | ,fAnodeWireOffset(0) |
5dfd5caf | 91 | { |
92 | // | |
93 | // Constructor | |
94 | // | |
95 | ||
96 | } | |
97 | ||
e0d47c25 | 98 | //_____________________________________________________________________________ |
2745a409 | 99 | AliTRDpadPlane::AliTRDpadPlane(const AliTRDpadPlane &p) |
100 | :TObject(p) | |
053767a4 | 101 | ,fLayer(p.fLayer) |
102 | ,fStack(p.fStack) | |
2745a409 | 103 | ,fLength(p.fLength) |
104 | ,fWidth(p.fWidth) | |
105 | ,fLengthRim(p.fLengthRim) | |
106 | ,fWidthRim(p.fLengthRim) | |
107 | ,fLengthOPad(p.fLengthOPad) | |
108 | ,fWidthOPad(p.fWidthOPad) | |
109 | ,fLengthIPad(p.fLengthIPad) | |
110 | ,fWidthIPad(p.fWidthIPad) | |
111 | ,fRowSpacing(p.fRowSpacing) | |
112 | ,fColSpacing(p.fColSpacing) | |
113 | ,fNrows(p.fNrows) | |
114 | ,fNcols(p.fNcols) | |
115 | ,fTiltingAngle(p.fTiltingAngle) | |
116 | ,fTiltingTan(p.fTiltingTan) | |
117 | ,fPadRow(0) | |
118 | ,fPadCol(0) | |
4329977a | 119 | ,fPadRowSMOffset(p.fPadRowSMOffset) |
58897a75 | 120 | ,fAnodeWireOffset(p.fAnodeWireOffset) |
e0d47c25 | 121 | { |
122 | // | |
123 | // AliTRDpadPlane copy constructor | |
124 | // | |
125 | ||
2745a409 | 126 | Int_t iBin = 0; |
127 | ||
f881dc35 | 128 | if (((AliTRDpadPlane &) p).fPadRow) { |
129 | delete [] ((AliTRDpadPlane &) p).fPadRow; | |
130 | } | |
2745a409 | 131 | ((AliTRDpadPlane &) p).fPadRow = new Double_t[fNrows]; |
132 | for (iBin = 0; iBin < fNrows; iBin++) { | |
133 | ((AliTRDpadPlane &) p).fPadRow[iBin] = fPadRow[iBin]; | |
134 | } | |
135 | ||
f881dc35 | 136 | if (((AliTRDpadPlane &) p).fPadCol) { |
137 | delete [] ((AliTRDpadPlane &) p).fPadCol; | |
138 | } | |
2745a409 | 139 | ((AliTRDpadPlane &) p).fPadCol = new Double_t[fNrows]; |
140 | for (iBin = 0; iBin < fNrows; iBin++) { | |
141 | ((AliTRDpadPlane &) p).fPadCol[iBin] = fPadCol[iBin]; | |
142 | } | |
e0d47c25 | 143 | |
144 | } | |
145 | ||
146 | //_____________________________________________________________________________ | |
147 | AliTRDpadPlane::~AliTRDpadPlane() | |
148 | { | |
149 | // | |
150 | // AliTRDpadPlane destructor | |
151 | // | |
152 | ||
e0d47c25 | 153 | if (fPadRow) { |
154 | delete [] fPadRow; | |
155 | fPadRow = 0; | |
156 | } | |
157 | ||
158 | if (fPadCol) { | |
159 | delete [] fPadCol; | |
160 | fPadCol = 0; | |
161 | } | |
162 | ||
163 | } | |
164 | ||
3c537e64 | 165 | //_____________________________________________________________________________ |
166 | AliTRDpadPlane &AliTRDpadPlane::operator=(const AliTRDpadPlane &p) | |
167 | { | |
168 | // | |
169 | // Assignment operator | |
170 | // | |
171 | ||
f881dc35 | 172 | if (this != &p) { |
173 | ((AliTRDpadPlane &) p).Copy(*this); | |
174 | } | |
175 | ||
3c537e64 | 176 | return *this; |
177 | ||
178 | } | |
179 | ||
e0d47c25 | 180 | //_____________________________________________________________________________ |
181 | void AliTRDpadPlane::Copy(TObject &p) const | |
182 | { | |
183 | // | |
184 | // Copy function | |
185 | // | |
186 | ||
187 | Int_t iBin = 0; | |
188 | ||
58897a75 | 189 | ((AliTRDpadPlane &) p).fLayer = fLayer; |
190 | ((AliTRDpadPlane &) p).fStack = fStack; | |
e0d47c25 | 191 | |
58897a75 | 192 | ((AliTRDpadPlane &) p).fLength = fLength; |
193 | ((AliTRDpadPlane &) p).fWidth = fWidth; | |
194 | ((AliTRDpadPlane &) p).fLengthRim = fLengthRim; | |
195 | ((AliTRDpadPlane &) p).fWidthRim = fWidthRim; | |
196 | ((AliTRDpadPlane &) p).fLengthOPad = fLengthOPad; | |
197 | ((AliTRDpadPlane &) p).fWidthOPad = fWidthOPad; | |
198 | ((AliTRDpadPlane &) p).fLengthIPad = fLengthIPad; | |
199 | ((AliTRDpadPlane &) p).fWidthIPad = fWidthIPad; | |
e0d47c25 | 200 | |
58897a75 | 201 | ((AliTRDpadPlane &) p).fRowSpacing = fRowSpacing; |
202 | ((AliTRDpadPlane &) p).fColSpacing = fColSpacing; | |
e0d47c25 | 203 | |
58897a75 | 204 | ((AliTRDpadPlane &) p).fNrows = fNrows; |
205 | ((AliTRDpadPlane &) p).fNcols = fNcols; | |
e0d47c25 | 206 | |
58897a75 | 207 | ((AliTRDpadPlane &) p).fTiltingAngle = fTiltingAngle; |
208 | ((AliTRDpadPlane &) p).fTiltingTan = fTiltingTan; | |
e0d47c25 | 209 | |
58897a75 | 210 | ((AliTRDpadPlane &) p).fPadRowSMOffset = fPadRowSMOffset; |
211 | ((AliTRDpadPlane &) p).fAnodeWireOffset = fAnodeWireOffset; | |
e0d47c25 | 212 | |
f881dc35 | 213 | if (((AliTRDpadPlane &) p).fPadRow) { |
214 | delete [] ((AliTRDpadPlane &) p).fPadRow; | |
215 | } | |
e0d47c25 | 216 | ((AliTRDpadPlane &) p).fPadRow = new Double_t[fNrows]; |
217 | for (iBin = 0; iBin < fNrows; iBin++) { | |
218 | ((AliTRDpadPlane &) p).fPadRow[iBin] = fPadRow[iBin]; | |
219 | } | |
220 | ||
f881dc35 | 221 | if (((AliTRDpadPlane &) p).fPadCol) { |
222 | delete [] ((AliTRDpadPlane &) p).fPadCol; | |
223 | } | |
e0d47c25 | 224 | ((AliTRDpadPlane &) p).fPadCol = new Double_t[fNrows]; |
225 | for (iBin = 0; iBin < fNrows; iBin++) { | |
226 | ((AliTRDpadPlane &) p).fPadCol[iBin] = fPadCol[iBin]; | |
227 | } | |
228 | ||
229 | TObject::Copy(p); | |
230 | ||
231 | } | |
232 | ||
f18d4f83 | 233 | //_____________________________________________________________________________ |
234 | void AliTRDpadPlane::SetTiltingAngle(Double_t t) | |
235 | { | |
236 | // | |
237 | // Set the tilting angle of the pads | |
238 | // | |
239 | ||
240 | fTiltingAngle = t; | |
241 | fTiltingTan = TMath::Tan(TMath::Pi()/180.0 * fTiltingAngle); | |
242 | ||
243 | } | |
244 | ||
e0d47c25 | 245 | //_____________________________________________________________________________ |
98ce8151 | 246 | Int_t AliTRDpadPlane::GetPadRowNumber(Double_t z) const |
e0d47c25 | 247 | { |
248 | // | |
4329977a | 249 | // Finds the pad row number for a given z-position in local supermodule system |
e0d47c25 | 250 | // |
251 | ||
252 | Int_t row = 0; | |
253 | Int_t nabove = 0; | |
254 | Int_t nbelow = 0; | |
255 | Int_t middle = 0; | |
256 | ||
f881dc35 | 257 | if ((z > GetRow0() ) || |
258 | (z < GetRowEnd())) { | |
a5cadd36 | 259 | |
e0d47c25 | 260 | row = -1; |
a5cadd36 | 261 | |
4329977a | 262 | } |
263 | else { | |
264 | ||
265 | nabove = fNrows + 1; | |
266 | nbelow = 0; | |
267 | while (nabove - nbelow > 1) { | |
268 | middle = (nabove + nbelow) / 2; | |
269 | if (z == (fPadRow[middle-1] + fPadRowSMOffset)) { | |
270 | row = middle; | |
271 | } | |
272 | if (z > (fPadRow[middle-1] + fPadRowSMOffset)) { | |
273 | nabove = middle; | |
274 | } | |
275 | else { | |
276 | nbelow = middle; | |
277 | } | |
278 | } | |
279 | row = nbelow - 1; | |
280 | ||
281 | } | |
282 | ||
283 | return row; | |
284 | ||
285 | } | |
286 | ||
287 | //_____________________________________________________________________________ | |
288 | Int_t AliTRDpadPlane::GetPadRowNumberROC(Double_t z) const | |
289 | { | |
290 | // | |
291 | // Finds the pad row number for a given z-position in local ROC system | |
292 | // | |
293 | ||
294 | Int_t row = 0; | |
295 | Int_t nabove = 0; | |
296 | Int_t nbelow = 0; | |
297 | Int_t middle = 0; | |
298 | ||
299 | if ((z > GetRow0ROC() ) || | |
300 | (z < GetRowEndROC())) { | |
301 | ||
302 | row = -1; | |
303 | ||
e0d47c25 | 304 | } |
305 | else { | |
a5cadd36 | 306 | |
f881dc35 | 307 | nabove = fNrows + 1; |
e0d47c25 | 308 | nbelow = 0; |
309 | while (nabove - nbelow > 1) { | |
310 | middle = (nabove + nbelow) / 2; | |
f881dc35 | 311 | if (z == fPadRow[middle-1]) { |
312 | row = middle; | |
313 | } | |
314 | if (z > fPadRow[middle-1]) { | |
315 | nabove = middle; | |
316 | } | |
317 | else { | |
318 | nbelow = middle; | |
319 | } | |
e0d47c25 | 320 | } |
321 | row = nbelow - 1; | |
a5cadd36 | 322 | |
e0d47c25 | 323 | } |
324 | ||
325 | return row; | |
326 | ||
327 | } | |
328 | ||
329 | //_____________________________________________________________________________ | |
4329977a | 330 | Int_t AliTRDpadPlane::GetPadColNumber(Double_t rphi) const |
e0d47c25 | 331 | { |
332 | // | |
023b669c | 333 | // Finds the pad column number for a given rphi-position |
e0d47c25 | 334 | // |
335 | ||
4329977a | 336 | Int_t col = 0; |
337 | Int_t nabove = 0; | |
338 | Int_t nbelow = 0; | |
339 | Int_t middle = 0; | |
2f4fac20 | 340 | |
023b669c | 341 | if ((rphi < GetCol0() ) || |
342 | (rphi > GetColEnd())) { | |
e0d47c25 | 343 | |
e0d47c25 | 344 | col = -1; |
a5cadd36 | 345 | |
e0d47c25 | 346 | } |
347 | else { | |
a5cadd36 | 348 | |
023b669c | 349 | nabove = fNcols; |
e0d47c25 | 350 | nbelow = 0; |
351 | while (nabove - nbelow > 1) { | |
352 | middle = (nabove + nbelow) / 2; | |
023b669c | 353 | if (rphi == fPadCol[middle]) { |
f881dc35 | 354 | col = middle; |
355 | } | |
023b669c | 356 | if (rphi > fPadCol[middle]) { |
357 | nbelow = middle; | |
f881dc35 | 358 | } |
359 | else { | |
023b669c | 360 | nabove = middle; |
f881dc35 | 361 | } |
e0d47c25 | 362 | } |
023b669c | 363 | col = nbelow; |
e0d47c25 | 364 | |
e0d47c25 | 365 | } |
e0d47c25 | 366 | |
a5cadd36 | 367 | return col; |
e0d47c25 | 368 | |
369 | } |