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4b6f2cee | 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 | #include "AliMUONPad.h" | |
19 | ||
20 | #include "AliLog.h" | |
21 | #include "AliMpArea.h" | |
22 | ||
23 | #include "Riostream.h" | |
24 | #include "TVirtualPad.h" | |
25 | #include "TVirtualX.h" | |
26 | #include "TVector2.h" | |
27 | #include "TMath.h" | |
28 | ||
29 | /// \class AliMUONPad | |
30 | /// | |
31 | /// Object gathering information about a hit pad. | |
32 | /// | |
33 | /// Can be seen as a combination of a Digit (which brings the charge) | |
34 | /// and an MpPad (which brings location and position) | |
35 | /// | |
36 | /// Also provided are some static functions to compute overlap and | |
37 | /// get neighboring information. | |
38 | /// | |
39 | /// \author Laurent Aphecetche | |
40 | ||
41 | /// \cond CLASSIMP | |
42 | ClassImp(AliMUONPad) | |
43 | /// \endcond | |
44 | ||
45 | namespace | |
46 | { | |
47 | AliMpArea | |
48 | Intersect(const AliMpArea& a, const AliMpArea& b) | |
49 | { | |
50 | // | |
51 | // Returns the common part of a and b. | |
52 | // | |
53 | Double_t xmin = TMath::Max(a.LeftBorder(),b.LeftBorder()); | |
54 | Double_t xmax = TMath::Min(a.RightBorder(),b.RightBorder()); | |
55 | Double_t ymin = TMath::Max(a.DownBorder(),b.DownBorder()); | |
56 | Double_t ymax = TMath::Min(a.UpBorder(),b.UpBorder()); | |
57 | AliMpArea c( TVector2( (xmin+xmax)/2.0, (ymin+ymax)/2.0 ), | |
58 | TVector2( (xmax-xmin)/2.0, (ymax-ymin)/2.0 ) ); | |
59 | ||
60 | return c; | |
61 | } | |
62 | } | |
63 | ||
64 | //_____________________________________________________________________________ | |
65 | AliMUONPad::AliMUONPad() | |
66 | : | |
67 | TObject(), | |
68 | fIsSaturated(kFALSE), | |
69 | fIsReal(kFALSE), | |
70 | fClusterId(-1), | |
71 | fCathode(-1), | |
72 | fDetElemId(-1), | |
73 | fDigitIndex(-1), | |
74 | fIx(-1), | |
75 | fIy(-1), | |
76 | fStatus(0), | |
77 | fDimensions(), | |
78 | fPosition(), | |
79 | fCharge(0.0), | |
80 | fChargeBackup(0.0) | |
81 | { | |
82 | /// Default ctor | |
83 | Init(-1,-1,-1,-1,TVector2(0,0),TVector2(0,0),0); | |
84 | } | |
85 | ||
86 | //_____________________________________________________________________________ | |
87 | AliMUONPad::AliMUONPad(Int_t detElemId, Int_t cathode, | |
88 | Int_t ix, Int_t iy, Double_t x, Double_t y, | |
89 | Double_t dx, Double_t dy, Double_t charge) | |
90 | : | |
91 | TObject(), | |
92 | fIsSaturated(kFALSE), | |
93 | fIsReal(kFALSE), | |
94 | fClusterId(-1), | |
95 | fCathode(-1), | |
96 | fDetElemId(-1), | |
97 | fDigitIndex(-1), | |
98 | fIx(-1), | |
99 | fIy(-1), | |
100 | fStatus(0), | |
101 | fDimensions(), | |
102 | fPosition(), | |
103 | fCharge(0.0), | |
104 | fChargeBackup(0.0) | |
105 | ||
106 | { | |
107 | /// Normal ctor, using full information | |
108 | Init(detElemId,cathode,ix,iy,TVector2(x,y),TVector2(dx,dy),charge); | |
109 | } | |
110 | ||
111 | //_____________________________________________________________________________ | |
112 | AliMUONPad::AliMUONPad(Double_t x, Double_t y, | |
113 | Double_t dx, Double_t dy, Double_t charge) | |
114 | : TObject(), | |
115 | fIsSaturated(kFALSE), | |
116 | fIsReal(kFALSE), | |
117 | fClusterId(-1), | |
118 | fCathode(-1), | |
119 | fDetElemId(-1), | |
120 | fDigitIndex(-1), | |
121 | fIx(-1), | |
122 | fIy(-1), | |
123 | fStatus(0), | |
124 | fDimensions(), | |
125 | fPosition(), | |
126 | fCharge(0.0), | |
127 | fChargeBackup(0.0) | |
128 | { | |
129 | /// Truncated constructor (w/o DE, cath, ix, iy) | |
130 | Init(-1,-1,-1,-1,TVector2(x,y),TVector2(dx,dy),charge); | |
131 | } | |
132 | ||
133 | //_____________________________________________________________________________ | |
134 | AliMUONPad::AliMUONPad(const TVector2& position, const TVector2& dimensions, | |
135 | Double_t charge) | |
136 | : TObject(), | |
137 | fIsSaturated(kFALSE), | |
138 | fIsReal(kFALSE), | |
139 | fClusterId(-1), | |
140 | fCathode(-1), | |
141 | fDetElemId(-1), | |
142 | fDigitIndex(-1), | |
143 | fIx(-1), | |
144 | fIy(-1), | |
145 | fStatus(0), | |
146 | fDimensions(), | |
147 | fPosition(), | |
148 | fCharge(0.0), | |
149 | fChargeBackup(0.0) | |
150 | { | |
151 | /// Alternate ctor | |
152 | Init(-1,-1,-1,-1,position,dimensions,charge); | |
153 | } | |
154 | ||
71a2d3aa | 155 | //_____________________________________________________________________________ |
156 | AliMUONPad::~AliMUONPad() | |
157 | { | |
158 | /// Dtor | |
159 | } | |
160 | ||
4b6f2cee | 161 | //_____________________________________________________________________________ |
162 | Bool_t | |
163 | AliMUONPad::AreNeighbours(const AliMUONPad& d1, const AliMUONPad& d2) | |
164 | { | |
165 | /// Whether 2 pads are neighbours or not | |
166 | if ( d1.DetElemId() != d2.DetElemId() || | |
167 | d1.Cathode() != d2.Cathode() ) | |
168 | { | |
169 | return kFALSE; | |
170 | } | |
171 | else | |
172 | { | |
173 | static Double_t precision = 1E-4; // cm | |
174 | static TVector2 precisionAdjustment(-precision,-precision); | |
175 | return AreOverlapping(d1,d2,precisionAdjustment); | |
176 | } | |
177 | } | |
178 | ||
179 | //_____________________________________________________________________________ | |
180 | Bool_t | |
181 | AliMUONPad::AreOverlapping(const AliMUONPad& d1, const AliMUONPad& d2, | |
182 | const TVector2& precision) | |
183 | { | |
184 | /// Checks the overlap between 2 pads. | |
185 | /// The actual overlap is computed not on d1 and d2, but on d1 and d2 | |
186 | /// "re-scaled" using the precision vector (conceptually equivalent to | |
187 | /// d.Dimensions() += precision) | |
188 | /// | |
189 | /// So, if the elements (x,y) of precision are : | |
190 | /// | |
191 | /// - positive, the overlap is "computed" from smaller d1 and d2 | |
192 | /// which is, modulo the precision, what you would think as a normal | |
193 | /// overlap calculation | |
194 | /// - negative, overlap is from "bigger" d1 and d2, which is usefull to "tweek" | |
195 | /// what we call an overlap, e.g. to consider 2 pads touching only by their | |
196 | /// corners to be overlapping. | |
197 | ||
198 | AliMpArea a1(d1.Position(),d1.Dimensions()); | |
199 | AliMpArea a2(d2.Position(),d2.Dimensions()); | |
200 | ||
201 | if ( a1.LeftBorder() > a2.RightBorder() - precision.X() || | |
202 | a1.RightBorder() < a2.LeftBorder() + precision.X() ) | |
203 | { | |
204 | return kFALSE; | |
205 | } | |
206 | ||
207 | if ( a1.DownBorder() > a2.UpBorder() - precision.Y() || | |
208 | a1.UpBorder() < a2.DownBorder() + precision.Y() ) | |
209 | { | |
210 | return kFALSE; | |
211 | } | |
212 | return kTRUE; | |
213 | } | |
214 | ||
215 | //_____________________________________________________________________________ | |
216 | Bool_t | |
217 | AliMUONPad::AreOverlapping(const AliMUONPad& d1, const AliMUONPad& d2, | |
218 | const TVector2& precision, | |
219 | AliMpArea& overlapRegion) | |
220 | { | |
221 | /// Checks the overlap between 2 pads, and returns the overlap area | |
222 | /// | |
223 | /// See comments on the other AreOverlapping method, too : in this | |
224 | /// method, the overlapRegion does *not* depend on the precision parameter, | |
225 | /// which is only used to decide whether the pads are overlapping, while | |
226 | /// the actual overlap region is computed w/o reference to precision. | |
227 | /// | |
228 | if ( AreOverlapping(d1,d2,precision) ) | |
229 | { | |
230 | overlapRegion = Overlap(d1,d2); | |
231 | if ( !overlapRegion.IsValid() ) | |
232 | { | |
233 | cerr << "Something is wrong : the 2 pads below are flagged as overlapping" | |
234 | << ", but the overlapRegion is not valid" | |
235 | << endl; | |
236 | d1.Print("corners"); | |
237 | d2.Print("corners"); | |
238 | } | |
239 | return kTRUE; | |
240 | } | |
241 | return kFALSE; | |
242 | } | |
243 | ||
244 | //_____________________________________________________________________________ | |
245 | Int_t | |
246 | AliMUONPad::Compare(const TObject* obj) const | |
247 | { | |
248 | /// Compare 2 pads. | |
249 | /// Ordering is as complete as possible. | |
250 | ||
251 | const AliMUONPad* pad = static_cast<const AliMUONPad*>(obj); | |
252 | ||
4bd6a200 | 253 | if (DetElemId() < 0) { |
254 | // AZ - For "pixels" from MLEM cluster finder | |
255 | if (Charge() == pad->Charge()) return 0; | |
256 | return ( Charge() < pad->Charge() ) ? 1:-1; | |
257 | } | |
258 | ||
4b6f2cee | 259 | if ( DetElemId() > pad->DetElemId() ) |
260 | { | |
261 | return 1; | |
262 | } | |
263 | else if ( DetElemId() > pad->DetElemId() ) | |
264 | { | |
265 | return 1; | |
266 | } | |
267 | else | |
268 | { | |
269 | // same DetElemId... | |
270 | if ( Cathode() > pad->Cathode() ) | |
271 | { | |
272 | return 1; | |
273 | } | |
274 | else if ( Cathode() < pad->Cathode() ) | |
275 | { | |
276 | return -1; | |
277 | } | |
278 | else | |
279 | { | |
280 | // same cathode... | |
281 | if ( Ix() > pad->Ix() ) | |
282 | { | |
283 | return 1; | |
284 | } | |
285 | else if ( Ix() < pad->Ix() ) | |
286 | { | |
287 | return -1; | |
288 | } | |
289 | else | |
290 | { | |
291 | // same ix.... | |
292 | if ( Iy() > pad->Iy() ) | |
293 | { | |
294 | return 1; | |
295 | } | |
296 | else if ( Iy() < pad->Iy() ) | |
297 | { | |
298 | return -1; | |
299 | } | |
300 | else | |
301 | { | |
302 | // same iy.... | |
303 | if ( X() > pad->X() ) | |
304 | { | |
305 | return 1; | |
306 | } | |
307 | else if ( X() < pad->X() ) | |
308 | { | |
309 | return -1; | |
310 | } | |
311 | else | |
312 | { | |
313 | // same X | |
314 | if ( Y() > pad->Y() ) | |
315 | { | |
316 | return 1; | |
317 | } | |
318 | else if ( Y() < pad->Y() ) | |
319 | { | |
320 | return -1; | |
321 | } | |
322 | else | |
323 | { | |
324 | // same Y | |
325 | return ( Charge() < pad->Charge() ) ? -1:1; | |
326 | } | |
327 | } | |
328 | } | |
329 | } | |
330 | } | |
331 | } | |
332 | } | |
333 | ||
334 | //_____________________________________________________________________________ | |
335 | Double_t | |
336 | AliMUONPad::Coord(Int_t ixy) const | |
337 | { | |
338 | /// To be friendly and backward compatible with AZ code, which | |
339 | /// used that kind of coordinate accessing. | |
340 | ||
341 | if ( ixy == 0 ) | |
342 | { | |
343 | return X(); | |
344 | } | |
345 | else if ( ixy == 1 ) | |
346 | { | |
347 | return Y(); | |
348 | } | |
349 | AliError(Form("Incorrect coordinates index %d (only 0,1 are valid)",ixy)); | |
350 | return 0; | |
351 | } | |
352 | ||
353 | //_____________________________________________________________________________ | |
354 | void | |
355 | AliMUONPad::Init(Int_t detElemId, Int_t cathode, | |
356 | Int_t ix, Int_t iy, | |
357 | const TVector2& position, | |
358 | const TVector2& dimensions, | |
359 | Double_t charge) | |
360 | { | |
361 | /// Called by all the ctors | |
362 | fIsSaturated = kFALSE; | |
363 | fIsReal = kTRUE; | |
364 | fDetElemId = detElemId; | |
365 | fCathode = cathode; | |
366 | fIx = ix; | |
367 | fIy = iy; | |
368 | fPosition = position; | |
369 | fDimensions = dimensions; | |
370 | fCharge = charge; | |
371 | fChargeBackup = fCharge; | |
372 | ||
373 | fClusterId = -1; | |
374 | fDigitIndex = -1; | |
375 | ||
376 | fStatus = 0; | |
377 | } | |
378 | ||
379 | //_____________________________________________________________________________ | |
380 | AliMpArea | |
381 | AliMUONPad::Overlap(const AliMUONPad& d1, const AliMUONPad& d2) | |
382 | { | |
383 | /// Return the overlap region between two pads | |
384 | AliMpArea a1(d1.Position(),d1.Dimensions()); | |
385 | AliMpArea a2(d2.Position(),d2.Dimensions()); | |
386 | return Intersect(a1,a2); | |
387 | } | |
388 | ||
389 | ||
390 | //_____________________________________________________________________________ | |
391 | void | |
392 | AliMUONPad::Paint(Option_t*) | |
393 | { | |
394 | /// Paint pad on screen | |
395 | TVector2 ll = Position() - Dimensions(); | |
396 | TVector2 ur = Position() + Dimensions(); | |
397 | ||
398 | gPad->PaintBox(ll.X(),ll.Y(),ur.X(),ur.Y()); | |
399 | } | |
400 | ||
401 | //_____________________________________________________________________________ | |
402 | void | |
403 | AliMUONPad::Print(Option_t* opt) const | |
404 | { | |
405 | /// Printout | |
406 | TString sopt(opt); | |
407 | sopt.ToLower(); | |
408 | ||
409 | ios_base::fmtflags oldflags = cout.flags(); | |
410 | if ( Cathode() >= 0 ) | |
411 | { | |
412 | cout << "DetEle " << setw(5) << DetElemId() | |
413 | << " Cath " << setw(2) << Cathode() | |
414 | << " (Ix,Iy)=(" << setw(3) << Ix() << "," << setw(3) << Iy() << ") "; | |
415 | } | |
416 | cout.setf(ios::fixed); | |
417 | cout.precision(6); | |
418 | cout << " (x,y)=(" << setw(9) << X() << "," << setw(9) << Y() << ") " | |
419 | << " (dx,dy)=(" << setw(9) << DX() << "," << setw(9) << DY() << ") " | |
420 | << " Charge="; | |
421 | cout.precision(2); | |
422 | cout << setw(7) << Charge(); | |
423 | if ( sopt.Contains("full") ) | |
424 | { | |
425 | cout | |
426 | << " Used=" << (IsUsed()?Form("YES (ClusterId %d)",fClusterId):"NO") | |
427 | << (IsSaturated()?"(S)":" ") | |
428 | << (IsReal()?" ":"(V)") | |
429 | << " Status=" << setw(4) << Status() | |
430 | << " ChargeBackup=" << ChargeBackup(); | |
431 | } | |
432 | if ( sopt.Contains("corners") ) | |
433 | { | |
434 | cout << Form(" (xmin,xmax)=(%e,%e) (ymin,ymax)=(%e,%e)", | |
435 | X()-DX(),X()+DX(), | |
436 | Y()-DY(),Y()+DY()) << endl; | |
437 | } | |
438 | cout << endl; | |
4bd6a200 | 439 | cout.precision(6); // reset to default precision |
4b6f2cee | 440 | cout.flags(oldflags); |
441 | } | |
442 | ||
443 | //_____________________________________________________________________________ | |
444 | void | |
445 | AliMUONPad::SetCoord(Int_t ixy, Double_t coord) | |
446 | { | |
447 | /// Set the pad coordinate (ixy=0 means x, ixy=1 means y) | |
448 | if ( ixy == 0 ) | |
449 | { | |
450 | fPosition.Set(coord,Y()); | |
451 | } | |
452 | else if ( ixy == 1 ) | |
453 | { | |
454 | fPosition.Set(X(),coord); | |
455 | } | |
456 | else | |
457 | { | |
458 | AliError(Form("Incorrect coordinates index %d (only 0,1 are valid)",ixy)); | |
459 | } | |
460 | } | |
461 | ||
462 | //_____________________________________________________________________________ | |
463 | void | |
464 | AliMUONPad::SetSize(Int_t ixy, Double_t size) | |
465 | { | |
466 | /// Set the pad half size (ixy=0 means x half size, ixy=1 means y half size) | |
467 | if ( ixy == 0 ) | |
468 | { | |
469 | fDimensions.Set(size,DY()); | |
470 | } | |
471 | else if ( ixy == 1 ) | |
472 | { | |
473 | fDimensions.Set(DX(),size); | |
474 | } | |
475 | else | |
476 | { | |
477 | AliError(Form("Incorrect coordinates index %d (only 0,1 are valid)",ixy)); | |
478 | } | |
479 | } | |
480 | ||
481 | //_____________________________________________________________________________ | |
482 | void | |
483 | AliMUONPad::Shift(Int_t ixy, Double_t shift) | |
484 | { | |
485 | /// Shift the position by "shift" | |
486 | SetCoord(ixy,Coord(ixy)+shift); | |
487 | } | |
488 | ||
489 | //_____________________________________________________________________________ | |
490 | Double_t | |
491 | AliMUONPad::Size(Int_t ixy) const | |
492 | { | |
493 | /// Returns the half size along a direction, given by ixy | |
494 | /// (see SetSize for ixy meaning) | |
495 | ||
496 | if ( ixy == 0 ) | |
497 | { | |
498 | return DX(); | |
499 | } | |
500 | else if ( ixy == 1 ) | |
501 | { | |
502 | return DY(); | |
503 | } | |
504 | AliError(Form("Incorrect coordinates index %d (only 0,1 are valid)",ixy)); | |
505 | return 0; | |
506 | } |