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e118b27e | 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 | // Class AliMUONSt12QuadrantSegmentation | |
19 | // ------------------------------------- | |
20 | // Segmentation for MUON quadrants of stations 1 and 2 using | |
21 | // the mapping package | |
22 | // | |
23 | // Author: Ivana Hrivnacova, IPN Orsay | |
24 | ||
25 | #include <TError.h> | |
26 | #include <TF1.h> | |
27 | #include <TObjArray.h> | |
28 | #include <TVector2.h> | |
29 | ||
30 | #include "AliMpPad.h" | |
31 | #include "AliMpArea.h" | |
32 | #include "AliMpReader.h" | |
33 | #include "AliMpSector.h" | |
34 | #include "AliMpVPadIterator.h" | |
35 | #include "AliMpSectorSegmentation.h" | |
36 | ||
37 | #include "AliMUONSt12QuadrantSegmentation.h" | |
38 | #include "AliRun.h" | |
39 | #include "AliMUON.h" | |
40 | #include "AliMUONChamber.h" | |
41 | #include "AliLog.h" | |
a713db22 | 42 | #include "AliMpFiles.h" |
ddde88da | 43 | #include "AliMpNeighboursPadIterator.h" |
a713db22 | 44 | #include <TSystem.h> |
e118b27e | 45 | |
46 | ClassImp(AliMUONSt12QuadrantSegmentation) | |
47 | ||
48 | const Float_t AliMUONSt12QuadrantSegmentation::fgkWireD = 0.20; | |
49 | const Float_t AliMUONSt12QuadrantSegmentation::fgkLengthUnit = 0.1; | |
50 | ||
51 | //______________________________________________________________________________ | |
52 | AliMUONSt12QuadrantSegmentation::AliMUONSt12QuadrantSegmentation( | |
53 | AliMpStationType stationType, | |
54 | AliMpPlaneType planeType) | |
e0a49962 | 55 | : AliMUONVGeometryDESegmentation(), |
59090931 | 56 | fStationType(stationType), |
57 | fPlaneType(planeType), | |
e118b27e | 58 | fSector(0), |
59 | fSectorSegmentation(0), | |
60 | fSectorIterator(0), | |
61 | fWireD(fgkWireD), | |
62 | fChamber(0), | |
63 | fId(0), | |
64 | fRmin(0.), | |
65 | fRmax(0.), | |
66 | fZ(0.), | |
67 | fIx(0), | |
68 | fIy(0), | |
69 | fX(0.), | |
70 | fY(0.), | |
71 | fZone(0), | |
72 | fXhit(0.), | |
73 | fYhit(0.), | |
74 | fIxt(0), | |
75 | fIyt(0), | |
76 | fIwt(0), | |
77 | fXt(0.), | |
78 | fYt(0.), | |
79 | fCorrA(0) | |
80 | { | |
81 | // Normal constructor | |
a713db22 | 82 | |
59090931 | 83 | ReadMappingData(); |
e118b27e | 84 | |
85 | fCorrA = new TObjArray(3); | |
86 | fCorrA->AddAt(0,0); | |
87 | fCorrA->AddAt(0,1); | |
88 | fCorrA->AddAt(0,2); | |
89 | } | |
90 | ||
91 | //______________________________________________________________________________ | |
92 | AliMUONSt12QuadrantSegmentation::AliMUONSt12QuadrantSegmentation() | |
e0a49962 | 93 | : AliMUONVGeometryDESegmentation(), |
59090931 | 94 | fStationType(kStation1), |
95 | fPlaneType(kBendingPlane), | |
e118b27e | 96 | fSector(0), |
97 | fSectorSegmentation(0), | |
98 | fSectorIterator(0), | |
99 | fWireD(fgkWireD), | |
100 | fChamber(0), | |
101 | fId(0), | |
102 | fRmin(0.), | |
103 | fRmax(0.), | |
104 | fZ(0.), | |
105 | fIx(0), | |
106 | fIy(0), | |
107 | fX(0.), | |
108 | fY(0.), | |
109 | fZone(0), | |
110 | fXhit(0.), | |
111 | fYhit(0.), | |
112 | fIxt(0), | |
113 | fIyt(0), | |
114 | fIwt(0), | |
115 | fXt(0.), | |
116 | fYt(0.), | |
117 | fCorrA(0) { | |
118 | // Default Constructor | |
119 | } | |
120 | ||
121 | //______________________________________________________________________________ | |
122 | AliMUONSt12QuadrantSegmentation::AliMUONSt12QuadrantSegmentation(const AliMUONSt12QuadrantSegmentation& rhs) | |
e0a49962 | 123 | : AliMUONVGeometryDESegmentation(rhs) |
e118b27e | 124 | { |
125 | // Copy constructor | |
126 | AliFatal("Copy constructor is not implemented."); | |
127 | } | |
128 | ||
129 | //______________________________________________________________________________ | |
130 | AliMUONSt12QuadrantSegmentation::~AliMUONSt12QuadrantSegmentation() { | |
131 | // Destructor | |
132 | ||
133 | delete fSector; | |
134 | delete fSectorSegmentation; | |
135 | delete fSectorIterator; | |
136 | } | |
137 | ||
138 | // | |
139 | // operators | |
140 | // | |
141 | ||
142 | //______________________________________________________________________________ | |
143 | AliMUONSt12QuadrantSegmentation& | |
144 | AliMUONSt12QuadrantSegmentation::operator=(const AliMUONSt12QuadrantSegmentation& rhs) | |
145 | { | |
146 | // Copy operator | |
147 | ||
148 | // check assignement to self | |
149 | if (this == &rhs) return *this; | |
150 | ||
151 | AliFatal("Assignment operator is not implemented."); | |
152 | ||
153 | return *this; | |
154 | } | |
155 | ||
156 | // | |
157 | // private methods | |
158 | // | |
159 | ||
160 | //______________________________________________________________________________ | |
161 | void AliMUONSt12QuadrantSegmentation::UpdateCurrentPadValues(const AliMpPad& pad) | |
162 | { | |
163 | // Updates current pad values. | |
164 | // --- | |
165 | ||
166 | fIx = pad.GetIndices().GetFirst(); | |
167 | fIy = pad.GetIndices().GetSecond(); | |
168 | fX = pad.Position().X() * fgkLengthUnit; | |
169 | fY = pad.Position().Y() * fgkLengthUnit; | |
170 | fZone = fSectorSegmentation->Zone(pad); | |
171 | } | |
172 | ||
59090931 | 173 | |
174 | //______________________________________________________________________________ | |
175 | void AliMUONSt12QuadrantSegmentation::ReadMappingData() | |
176 | { | |
177 | // Reads mapping data | |
178 | // --- | |
179 | ||
180 | // set path to mapping data files | |
181 | if (!gSystem->Getenv("MINSTALL")) { | |
182 | TString dirPath = gSystem->Getenv("ALICE_ROOT"); | |
183 | dirPath += "/MUON/mapping"; | |
184 | AliMpFiles::Instance()->SetTopPath(dirPath); | |
185 | gSystem->Setenv("MINSTALL", dirPath.Data()); | |
186 | //cout << "AliMpFiles top path set to " << dirPath << endl; | |
187 | } | |
188 | ||
189 | AliMpReader r(fStationType, fPlaneType); | |
190 | fSector = r.BuildSector(); | |
191 | fSectorSegmentation = new AliMpSectorSegmentation(fSector); | |
192 | } | |
193 | ||
e118b27e | 194 | // |
195 | // public methods | |
196 | // | |
197 | ||
198 | //______________________________________________________________________________ | |
199 | void AliMUONSt12QuadrantSegmentation::SetPadSize(Float_t /*p1*/, Float_t /*p2*/) | |
200 | { | |
201 | // Set pad size Dx*Dy | |
202 | // --- | |
203 | ||
204 | AliFatal("Not uniform pad size."); | |
205 | } | |
206 | ||
207 | //______________________________________________________________________________ | |
208 | void AliMUONSt12QuadrantSegmentation::SetDAnod(Float_t d) | |
209 | { | |
210 | // Set anod pitch | |
211 | // --- | |
212 | ||
213 | fWireD = d; | |
214 | } | |
215 | ||
59090931 | 216 | #include "AliMpMotifMap.h" |
e0a49962 | 217 | //______________________________________________________________________________ |
218 | Bool_t AliMUONSt12QuadrantSegmentation::HasPad(Float_t x, Float_t y, Float_t /*z*/) | |
219 | { | |
220 | // Returns true if a pad exists in the given position | |
221 | ||
59090931 | 222 | // fSector->GetMotifMap()->Print(); |
223 | ||
e0a49962 | 224 | AliMpPad pad = fSectorSegmentation |
225 | ->PadByPosition(TVector2(x/fgkLengthUnit, y/fgkLengthUnit), false); | |
226 | ||
227 | return pad.IsValid(); | |
228 | } | |
229 | ||
230 | ||
231 | //______________________________________________________________________________ | |
232 | Bool_t AliMUONSt12QuadrantSegmentation::HasPad(Int_t ix, Int_t iy) | |
233 | { | |
234 | // Returns true if a pad with given indices exists | |
235 | ||
236 | AliMpPad pad = fSectorSegmentation->PadByIndices(AliMpIntPair(ix,iy), false); | |
237 | ||
238 | return pad.IsValid(); | |
239 | } | |
240 | ||
241 | ||
6b1e4b22 | 242 | //______________________________________________________________________________ |
243 | AliMUONGeometryDirection AliMUONSt12QuadrantSegmentation::GetDirection() | |
244 | { | |
e9981d13 | 245 | // Returns the direction with a constant pad size |
246 | // (Direction or coordinate where the resolution is the best) | |
6b1e4b22 | 247 | |
248 | switch ( fSector->GetDirection() ) { | |
249 | case kX: return kDirX; | |
250 | case kY: return kDirY; | |
251 | default: return kDirUndefined; | |
252 | } | |
253 | } | |
254 | ||
e118b27e | 255 | //______________________________________________________________________________ |
256 | Float_t AliMUONSt12QuadrantSegmentation::GetAnod(Float_t xhit) const | |
257 | { | |
258 | // Anod wire coordinate closest to xhit | |
259 | // Returns for a hit position xhit the position of the nearest anode wire | |
260 | // From AliMUONSegmentationV01. | |
261 | // --- | |
262 | ||
263 | Float_t wire= (xhit>0) ? Int_t(xhit/fWireD) + 0.5 | |
264 | : Int_t(xhit/fWireD) - 0.5; | |
265 | return fWireD*wire; | |
266 | ||
267 | } | |
268 | ||
269 | //______________________________________________________________________________ | |
270 | void AliMUONSt12QuadrantSegmentation::GetPadI(Float_t x, Float_t y, Float_t /*z*/, | |
271 | Int_t& ix, Int_t& iy) | |
272 | { | |
273 | // Returns pad coordinates (ix,iy) for given real coordinates (x,y) | |
274 | // --- | |
275 | ||
276 | GetPadI(x, y, ix, iy); | |
277 | } | |
278 | ||
279 | //______________________________________________________________________________ | |
280 | void AliMUONSt12QuadrantSegmentation::GetPadI(Float_t x, Float_t y, | |
281 | Int_t& ix, Int_t& iy) | |
282 | { | |
283 | // Returns pad coordinates (ix,iy) for given real coordinates (x,y) | |
284 | // If there is no pad, ix = 0, iy = 0 are returned. | |
285 | // --- | |
286 | ||
287 | AliMpPad pad = fSectorSegmentation | |
e0a49962 | 288 | ->PadByPosition(TVector2(x/fgkLengthUnit, y/fgkLengthUnit), true); |
e118b27e | 289 | |
290 | ix = pad.GetIndices().GetFirst(); | |
291 | iy = pad.GetIndices().GetSecond(); | |
292 | } | |
293 | ||
294 | //______________________________________________________________________________ | |
295 | void AliMUONSt12QuadrantSegmentation::GetPadC(Int_t ix, Int_t iy, | |
296 | Float_t& x, Float_t& y, Float_t& z) | |
297 | { | |
298 | // Transform from pad to real coordinates | |
299 | // --- | |
300 | ||
301 | z = fZ; | |
302 | GetPadC(ix, iy, x , y); | |
303 | } | |
304 | ||
305 | //______________________________________________________________________________ | |
306 | void AliMUONSt12QuadrantSegmentation::GetPadC(Int_t ix, Int_t iy, | |
307 | Float_t& x, Float_t& y) | |
308 | { | |
309 | // Transform from pad to real coordinates | |
310 | // If there is no pad, x = 0., y = 0. are returned. | |
311 | // --- | |
312 | ||
e0a49962 | 313 | AliMpPad pad = fSectorSegmentation->PadByIndices(AliMpIntPair(ix,iy), true); |
e118b27e | 314 | |
315 | x = pad.Position().X() * fgkLengthUnit; | |
316 | y = pad.Position().Y() * fgkLengthUnit; | |
317 | } | |
318 | ||
319 | ||
320 | //______________________________________________________________________________ | |
321 | void AliMUONSt12QuadrantSegmentation::Init(Int_t chamber) | |
322 | { | |
323 | // Initialize segmentation | |
324 | // --- | |
325 | ||
59090931 | 326 | // find Npx, Npy and save this info |
e118b27e | 327 | |
328 | // reference to chamber | |
329 | AliMUON *pMUON = (AliMUON *) gAlice->GetModule("MUON"); | |
330 | fChamber = &(pMUON->Chamber(chamber)); | |
331 | fRmin=fChamber->RInner(); | |
332 | fRmax=fChamber->ROuter(); | |
333 | fZ = 0; | |
334 | fId=chamber; | |
335 | } | |
336 | ||
337 | //______________________________________________________________________________ | |
338 | Float_t AliMUONSt12QuadrantSegmentation::Dpx() const | |
339 | { | |
340 | // Get pad size in x | |
341 | // --- | |
342 | ||
343 | AliFatal( "Not uniform pad size."); | |
344 | return 0.; | |
345 | } | |
346 | ||
347 | //______________________________________________________________________________ | |
348 | Float_t AliMUONSt12QuadrantSegmentation::Dpy() const | |
349 | { | |
350 | // Get pad size in y | |
351 | // --- | |
352 | ||
353 | AliFatal("Not uniform pad size."); | |
354 | return 0.; | |
355 | } | |
356 | ||
357 | //______________________________________________________________________________ | |
358 | Float_t AliMUONSt12QuadrantSegmentation::Dpx(Int_t isector) const | |
359 | { | |
360 | // Pad size in x by sector | |
361 | // --- | |
362 | ||
363 | return fSectorSegmentation->PadDimensions(isector).X()*2.*fgkLengthUnit; | |
364 | } | |
365 | ||
366 | //______________________________________________________________________________ | |
367 | Float_t AliMUONSt12QuadrantSegmentation::Dpy(Int_t isector) const | |
368 | { | |
369 | // Pad size in x, y by Sector | |
370 | // --- | |
371 | ||
372 | return fSectorSegmentation->PadDimensions(isector).Y()*2.*fgkLengthUnit; | |
373 | } | |
374 | ||
375 | //______________________________________________________________________________ | |
376 | Int_t AliMUONSt12QuadrantSegmentation::Npx() const | |
377 | { | |
378 | // Maximum number of Pads in x | |
e0a49962 | 379 | // hard coded for the time being |
e118b27e | 380 | // --- |
381 | ||
580c28fd | 382 | return fSectorSegmentation->MaxPadIndexX(); |
e118b27e | 383 | } |
384 | ||
385 | //______________________________________________________________________________ | |
386 | Int_t AliMUONSt12QuadrantSegmentation::Npy() const | |
387 | { | |
388 | // Maximum number of Pads in y | |
e0a49962 | 389 | // hard coded for the time being |
e118b27e | 390 | // --- |
391 | ||
580c28fd | 392 | return fSectorSegmentation->MaxPadIndexY(); |
e118b27e | 393 | } |
394 | ||
395 | //______________________________________________________________________________ | |
396 | void AliMUONSt12QuadrantSegmentation::SetPad(Int_t ix, Int_t iy) | |
397 | { | |
398 | // Set pad position. | |
399 | // Sets virtual pad coordinates, needed for evaluating pad response | |
400 | // outside the tracking program. | |
401 | // From AliMUONSegmentationV01. | |
402 | // --- | |
403 | ||
404 | GetPadC(ix, iy, fX, fY); | |
405 | fZone = Sector(ix, iy); | |
406 | } | |
407 | ||
408 | //______________________________________________________________________________ | |
409 | void AliMUONSt12QuadrantSegmentation::SetHit(Float_t xhit, Float_t yhit, Float_t /*zhit*/) | |
410 | { | |
411 | // Set hit position | |
412 | // Sets virtual hit position, needed for evaluating pad response | |
413 | // outside the tracking program | |
414 | // From AliMUONSegmentationV01. | |
415 | ||
416 | fXhit = xhit; | |
417 | fYhit = yhit; | |
418 | } | |
419 | ||
420 | //______________________________________________________________________________ | |
421 | void AliMUONSt12QuadrantSegmentation::FirstPad(Float_t xhit, Float_t yhit, Float_t /*zhit*/, | |
422 | Float_t dx, Float_t dy) | |
423 | { | |
424 | // Iterate over pads - initialiser | |
425 | // --- | |
426 | ||
427 | // Sets the current pad to that located in the hit position | |
428 | ||
429 | SetHit(GetAnod(xhit), yhit, 0.); | |
430 | ||
431 | // Enable iterating in one dimension | |
432 | if (dx == 0.) dx = 0.01; | |
433 | if (dy == 0.) dy = 0.01; | |
434 | ||
435 | fSectorIterator | |
436 | = fSectorSegmentation | |
437 | ->CreateIterator(AliMpArea(TVector2(fXhit/fgkLengthUnit, fYhit/fgkLengthUnit), | |
438 | TVector2(dx/fgkLengthUnit, dy/fgkLengthUnit))); | |
439 | ||
440 | fSectorIterator->First(); | |
441 | ||
442 | if (! fSectorIterator->IsDone()) | |
443 | UpdateCurrentPadValues(fSectorIterator->CurrentItem()); | |
444 | } | |
445 | ||
446 | //______________________________________________________________________________ | |
447 | void AliMUONSt12QuadrantSegmentation::NextPad() | |
448 | { | |
449 | // Iterate over pads - stepper | |
450 | // --- | |
451 | ||
452 | fSectorIterator->Next(); | |
453 | ||
454 | if (! fSectorIterator->IsDone()) | |
455 | UpdateCurrentPadValues(fSectorIterator->CurrentItem()); | |
456 | } | |
457 | ||
458 | //______________________________________________________________________________ | |
459 | Int_t AliMUONSt12QuadrantSegmentation::MorePads() | |
460 | { | |
461 | // Iterate over pads - condition | |
462 | // --- | |
463 | ||
464 | if (fSectorIterator->IsDone()) | |
465 | return 0; | |
466 | else | |
467 | return 1; | |
468 | } | |
469 | ||
470 | //______________________________________________________________________________ | |
471 | Float_t AliMUONSt12QuadrantSegmentation::Distance2AndOffset(Int_t iX, Int_t iY, | |
472 | Float_t x, Float_t y, Int_t* /*dummy*/) | |
473 | { | |
474 | // Returns the square of the distance between 1 pad | |
475 | // labelled by its channel numbers and a coordinate | |
476 | // --- | |
477 | ||
478 | AliMpPad pad = fSectorSegmentation->PadByIndices(AliMpIntPair(iX, iY)); | |
479 | ||
480 | if (!pad.IsValid()) | |
481 | AliFatal("Cannot locate pad."); | |
482 | ||
483 | return (pad.Position()*fgkLengthUnit - TVector2(x, y)).Mod2(); | |
484 | } | |
485 | ||
486 | //______________________________________________________________________________ | |
487 | void AliMUONSt12QuadrantSegmentation::GetNParallelAndOffset(Int_t /*iX*/, Int_t /*iY*/, | |
488 | Int_t* /*Nparallel*/, Int_t* /*Offset*/) | |
489 | { | |
490 | // Number of pads read in parallel and offset to add to x | |
491 | // (specific to LYON, but mandatory for display) | |
492 | // --- | |
493 | ||
494 | AliFatal( "Not yet implemented."); | |
495 | } | |
496 | ||
497 | ||
498 | //______________________________________________________________________________ | |
499 | void AliMUONSt12QuadrantSegmentation::Neighbours(Int_t iX, Int_t iY, | |
500 | Int_t* Nlist, | |
501 | Int_t Xlist[10], Int_t Ylist[10]) | |
502 | { | |
503 | // Get next neighbours | |
504 | // --- | |
505 | ||
506 | AliMpPad pad = fSectorSegmentation->PadByIndices(AliMpIntPair(iX,iY)); | |
507 | Int_t &i = *Nlist; | |
508 | i=0; | |
ddde88da | 509 | AliMpNeighboursPadIterator iter |
510 | = AliMpNeighboursPadIterator(fSectorSegmentation, pad, kFALSE); | |
e118b27e | 511 | |
ddde88da | 512 | for( iter.First(); !iter.IsDone() && i<10; iter.Next()) { |
513 | Xlist[i] = iter.CurrentItem().GetIndices().GetFirst(); | |
514 | Ylist[i] = iter.CurrentItem().GetIndices().GetSecond(); | |
e118b27e | 515 | i++; |
516 | } | |
e118b27e | 517 | } |
ddde88da | 518 | |
e118b27e | 519 | //______________________________________________________________________________ |
520 | Int_t AliMUONSt12QuadrantSegmentation::Ix() | |
521 | { | |
522 | // Current pad cursor during disintegration | |
523 | // x, y-coordinate | |
524 | // --- | |
525 | ||
526 | return fSectorIterator->CurrentItem().GetIndices().GetFirst(); | |
527 | } | |
528 | ||
529 | //______________________________________________________________________________ | |
530 | Int_t AliMUONSt12QuadrantSegmentation::Iy() | |
531 | { | |
532 | // Current pad cursor during disintegration | |
533 | // x, y-coordinate | |
534 | // --- | |
535 | ||
536 | return fSectorIterator->CurrentItem().GetIndices().GetSecond(); | |
537 | } | |
538 | ||
539 | //______________________________________________________________________________ | |
540 | Int_t AliMUONSt12QuadrantSegmentation::ISector() | |
541 | { | |
542 | // Current sector | |
543 | // --- | |
544 | ||
545 | return fZone; | |
546 | } | |
547 | ||
548 | //______________________________________________________________________________ | |
549 | Int_t AliMUONSt12QuadrantSegmentation::Sector(Int_t ix, Int_t iy) | |
550 | { | |
551 | // Calculate sector from pad coordinates | |
552 | // --- | |
553 | ||
554 | return fSectorSegmentation | |
555 | ->Zone(fSectorSegmentation->PadByIndices(AliMpIntPair(ix, iy))); | |
556 | } | |
557 | ||
558 | //______________________________________________________________________________ | |
559 | Int_t AliMUONSt12QuadrantSegmentation::Sector(Float_t x, Float_t y) | |
560 | { | |
561 | // Calculate sector from pad coordinates | |
562 | // --- | |
563 | ||
564 | return fSectorSegmentation | |
565 | ->Zone(fSectorSegmentation | |
566 | ->PadByPosition(TVector2(x/fgkLengthUnit, y/fgkLengthUnit))); | |
567 | } | |
568 | ||
569 | //______________________________________________________________________________ | |
570 | void AliMUONSt12QuadrantSegmentation::IntegrationLimits(Float_t& x1, Float_t& x2, | |
571 | Float_t& y1, Float_t& y2) | |
572 | { | |
573 | // Current integration limits | |
574 | // --- | |
575 | ||
576 | x1 = fXhit - fX - Dpx(fZone)/2.; | |
577 | x2 = x1 + Dpx(fZone); | |
578 | ||
579 | y1 = fYhit - fY - Dpy(fZone)/2.; | |
580 | y2 = y1 + Dpy(fZone); | |
581 | } | |
582 | ||
583 | //______________________________________________________________________________ | |
584 | Int_t AliMUONSt12QuadrantSegmentation::SigGenCond(Float_t x, Float_t y, Float_t /*z*/) | |
585 | { | |
586 | // Signal Generation Condition during Stepping | |
587 | // 0: don't generate signal | |
588 | // 1: generate signal | |
589 | // Comments: | |
590 | // | |
591 | // Crossing of pad boundary and mid plane between neighbouring wires is checked. | |
592 | // To correctly simulate the dependence of the spatial resolution on the angle | |
593 | // of incidence signal must be generated for constant steps on | |
594 | // the projection of the trajectory along the anode wire. | |
595 | // | |
596 | // Signal will be generated if particle crosses pad boundary or | |
597 | // boundary between two wires. | |
598 | // | |
599 | // From AliMUONSegmentationV01 | |
600 | // --- | |
601 | ||
602 | Int_t ixt, iyt; | |
603 | GetPadI(x, y, ixt, iyt); | |
604 | Int_t iwt=(x>0) ? Int_t(x/fWireD)+1 : Int_t(x/fWireD)-1; | |
605 | ||
606 | if ((ixt != fIxt) || (iyt !=fIyt) || (iwt != fIwt)) { | |
607 | return 1; | |
608 | } | |
609 | else { | |
610 | return 0; | |
611 | } | |
612 | } | |
613 | ||
e118b27e | 614 | //______________________________________________________________________________ |
615 | void AliMUONSt12QuadrantSegmentation::SigGenInit(Float_t x, Float_t y, Float_t /*z*/) | |
616 | { | |
617 | // Initialise signal generation at coord (x,y,z) | |
618 | // Initialises pad and wire position during stepping. | |
619 | // From AliMUONSegmentationV01 | |
620 | // --- | |
621 | ||
622 | fXt = x; | |
623 | fYt = y; | |
624 | GetPadI(x, y, fIxt, fIyt); | |
625 | fIwt = (x>0) ? Int_t(x/fWireD)+1 : Int_t(x/fWireD)-1 ; | |
626 | } | |
627 | ||
628 | //______________________________________________________________________________ | |
629 | void AliMUONSt12QuadrantSegmentation::GiveTestPoints(Int_t& n, Float_t* x, Float_t* y) const | |
630 | { | |
631 | // Test points for auto calibration | |
632 | // Returns test point on the pad plane. | |
633 | // Used during determination of the segmoid correction of the COG-method | |
634 | // From AliMUONSegmentationV01 | |
635 | // --- | |
636 | ||
637 | n=1; | |
638 | x[0] = (fRmax+fRmin)/2/TMath::Sqrt(2.); | |
639 | y[0] = x[0]; | |
640 | } | |
641 | ||
642 | //______________________________________________________________________________ | |
643 | void AliMUONSt12QuadrantSegmentation::Draw(const char * /*opt*/) | |
644 | { | |
645 | // Draw the segmentation zones. | |
646 | // (Called from AliMUON::BuildGeometry) | |
647 | // --- | |
648 | ||
649 | AliWarning("Not yet implemented."); | |
650 | } | |
651 | ||
652 | //______________________________________________________________________________ | |
653 | void AliMUONSt12QuadrantSegmentation::SetCorrFunc(Int_t isec, TF1* func) | |
654 | { | |
655 | // Set the correction function. | |
656 | // From AliMUONSegmentationV01 | |
657 | // --- | |
658 | ||
659 | fCorrA->AddAt(func, isec); | |
660 | } | |
661 | ||
662 | //______________________________________________________________________________ | |
663 | TF1* AliMUONSt12QuadrantSegmentation::CorrFunc(Int_t isec) const | |
664 | { | |
665 | // Get the correction Function. | |
666 | // From AliMUONSegmentationV01 | |
667 | // --- | |
668 | ||
669 | return (TF1*) fCorrA->At(isec); | |
670 | } | |
671 | ||
59090931 | 672 | //______________________________________________________________________________ |
673 | void AliMUONSt12QuadrantSegmentation::Streamer(TBuffer &R__b) | |
674 | { | |
675 | // Stream an object of class AliMUONSt12QuadrantSegmentation. | |
676 | ||
677 | if (R__b.IsReading()) { | |
678 | AliMUONSt12QuadrantSegmentation::Class()->ReadBuffer(R__b, this); | |
679 | ReadMappingData(); | |
680 | } | |
681 | else { | |
682 | AliMUONSt12QuadrantSegmentation::Class()->WriteBuffer(R__b, this); | |
683 | } | |
684 | } | |
685 | ||
686 |