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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3bd79107 | 3 | * * |
4c039060 | 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 | /* | |
17 | $Log$ | |
37ffef26 | 18 | Revision 1.10 2002/03/15 17:21:54 nilsen |
19 | Removed zero-ing of fModules variable in constructors. | |
20 | ||
b0f0d5a5 | 21 | Revision 1.9 2000/10/04 19:46:39 barbera |
22 | Corrected by F. Carminati for v3.04 | |
23 | ||
114da3a4 | 24 | Revision 1.8 2000/10/02 16:32:57 barbera |
25 | Forward declarations added and formatting | |
26 | ||
0b2d41b4 | 27 | Revision 1.3.4.8 2000/10/02 15:55:26 barbera |
28 | Forward declarations added and formatting | |
29 | ||
30 | Revision 1.7 2000/09/22 12:36:38 nilsen | |
31 | Minor changes to improve compilation and create less NOISE. | |
32 | ||
ff61221e | 33 | Revision 1.6 2000/07/10 16:07:18 fca |
34 | Release version of ITS code | |
35 | ||
3bd79107 | 36 | Revision 1.3.4.2 2000/03/02 21:42:29 nilsen |
37 | Linked AliDetector::fDigit to AliITSmodule::fDigitsM and AliITS::fITSRecPoints | |
38 | to AliITSmodule::fRecPointsM. Renamed AliITSmodule::fPointsM to fRecPointsM. | |
39 | Removed the deletion of fDigitsM from the distructor since it is only a copy | |
40 | of what is in AliDetector. Fixed a bug in the functions LineSegmentL and | |
41 | LineSegmentG. Added two new versions of LineSegmentL and LineSegmentG to | |
42 | additionaly return track number from the hit. Removed FastPoint function, | |
43 | haven't found anywere it was used, also it had very many problems, should | |
44 | just call FastPointSPD... . | |
45 | ||
46 | Revision 1.3.4.1 2000/01/12 19:03:32 nilsen | |
47 | This is the version of the files after the merging done in December 1999. | |
48 | See the ReadMe110100.txt file for details | |
49 | ||
50 | Revision 1.3 1999/10/04 15:20:12 fca | |
51 | Correct syntax accepted by g++ but not standard for static members, remove minor warnings | |
52 | ||
ad0e60d9 | 53 | Revision 1.2 1999/09/29 09:24:20 fca |
54 | Introduction of the Copyright and cvs Log | |
55 | ||
4c039060 | 56 | */ |
57 | ||
ff61221e | 58 | #include <TArrayI.h> |
59 | ||
114da3a4 | 60 | #include <stdlib.h> |
3bd79107 | 61 | |
58005f18 | 62 | #include "AliRun.h" |
3bd79107 | 63 | #include "AliITS.h" |
ff61221e | 64 | #include "AliITShit.h" |
65 | #include "AliITSmodule.h" | |
66 | #include "AliITSgeom.h" | |
58005f18 | 67 | |
68 | ClassImp(AliITSmodule) | |
69 | ||
70 | //_______________________________________________________________________ | |
71 | // | |
72 | // Impementation of class AliITSmodule | |
73 | // | |
3bd79107 | 74 | // created by: A. Bouchm, W. Peryt, S. Radomski, P. Skowronski |
58005f18 | 75 | // R. Barbers, B. Batyunia, B. S. Nilsen |
76 | // ver 1.0 CERN 16.09.1999 | |
77 | //_______________________________________________________________________ | |
58005f18 | 78 | //________________________________________________________________________ |
79 | // | |
80 | // Constructors and deconstructor | |
81 | //________________________________________________________________________ | |
82 | // | |
3bd79107 | 83 | AliITSmodule::AliITSmodule() { |
b0f0d5a5 | 84 | // constructor |
85 | ||
3bd79107 | 86 | fHitsM = 0; |
87 | fTrackIndex = 0; | |
88 | fHitIndex = 0; | |
89 | fITS = 0; | |
58005f18 | 90 | |
3bd79107 | 91 | } |
92 | //_________________________________________________________________________ | |
93 | AliITSmodule::AliITSmodule(Int_t index) { | |
94 | // constructor | |
58005f18 | 95 | |
3bd79107 | 96 | fIndex = index; |
97 | fHitsM = new TObjArray(); | |
98 | fTrackIndex = new TArrayI(16); | |
99 | fHitIndex = new TArrayI(16); | |
100 | fITS = (AliITS*)(gAlice->GetDetector("ITS")); | |
101 | } | |
102 | //__________________________________________________________________________ | |
103 | AliITSmodule::~AliITSmodule() { | |
104 | // The destructor for AliITSmodule. Before destoring AliITSmodule | |
105 | // we must first destroy all of it's members. | |
58005f18 | 106 | |
3bd79107 | 107 | if(fHitsM){ |
e8189707 | 108 | for(Int_t i=0;i<fHitsM->GetEntriesFast();i++) |
3bd79107 | 109 | delete ((AliITShit *)(fHitsM->At(i))); |
110 | // must delete each object in the TObjArray. | |
111 | delete fHitsM; | |
112 | } // end if | |
113 | delete fTrackIndex; | |
114 | delete fHitIndex; | |
115 | fITS = 0; // We don't delete this pointer since it is just a copy. | |
116 | } | |
117 | //____________________________________________________________________________ | |
118 | AliITSmodule::AliITSmodule(const AliITSmodule &source){ | |
119 | //////////////////////////////////////////////////////////////////////// | |
120 | // Copy Constructor | |
121 | //////////////////////////////////////////////////////////////////////// | |
122 | printf("AliITSmodule error: AliITSmodule class has not to be copied! Exit.\n"); | |
123 | exit(1); | |
58005f18 | 124 | } |
125 | ||
3bd79107 | 126 | //_____________________________________________________________________________ |
127 | AliITSmodule& AliITSmodule::operator=(const AliITSmodule &source){ | |
128 | //////////////////////////////////////////////////////////////////////// | |
129 | // Assignment operator | |
130 | //////////////////////////////////////////////////////////////////////// | |
131 | printf("AliITSmodule error: AliITSmodule class has not to be copied! Exit.\n"); | |
132 | exit(1); | |
e8189707 | 133 | return *this; // fake return neded on Sun |
3bd79107 | 134 | } |
58005f18 | 135 | |
136 | //_________________________________________________________________________ | |
3bd79107 | 137 | // |
138 | // Hits management | |
139 | //__________________________________________________________________________ | |
140 | Int_t AliITSmodule::AddHit(AliITShit* hit,Int_t t,Int_t h) { | |
141 | // Hits management | |
58005f18 | 142 | |
ff61221e | 143 | //printf("AddHit: beginning hit %p t h %d %d\n",hit,t,h); |
3bd79107 | 144 | fHitsM->AddLast(new AliITShit(*hit)); |
145 | Int_t fNhitsM = fHitsM->GetEntriesFast(); | |
146 | if(fNhitsM-1>=fTrackIndex->GetSize()){ // need to expand the TArrayI | |
147 | TArrayI *p = new TArrayI(fNhitsM+64); | |
e8189707 | 148 | for(Int_t i=0;i<fTrackIndex->GetSize();i++) |
3bd79107 | 149 | (*p)[i] = fTrackIndex->At(i); |
150 | delete fTrackIndex; | |
151 | fTrackIndex = p; | |
152 | } // end if | |
153 | if(fNhitsM-1>=fHitIndex->GetSize()){ // need to expand the TArrayI | |
154 | TArrayI *p = new TArrayI(fNhitsM+64); | |
e8189707 | 155 | for(Int_t i=0;i<fHitIndex->GetSize();i++) |
3bd79107 | 156 | (*p)[i] = fHitIndex->At(i); |
157 | delete fHitIndex; | |
158 | fHitIndex = p; | |
159 | } // end if | |
160 | (*fTrackIndex)[fNhitsM-1] = t; | |
161 | (*fHitIndex)[fNhitsM-1] = h; | |
162 | return fNhitsM; | |
163 | } | |
164 | ||
165 | //___________________________________________________________________________ | |
166 | void AliITSmodule::MedianHitG(Int_t index, | |
167 | Float_t hitx1,Float_t hity1,Float_t hitz1, | |
168 | Float_t hitx2,Float_t hity2,Float_t hitz2, | |
169 | Float_t &xMg, Float_t &yMg, Float_t &zMg){ | |
170 | // median hit | |
171 | AliITSgeom *gm = fITS->GetITSgeom(); | |
172 | Float_t x1l,y1l,z1l; | |
173 | Float_t x2l,y2l,z2l; | |
174 | Float_t xMl,yMl=0,zMl; | |
175 | Float_t l[3], g[3]; | |
176 | ||
177 | g[0] = hitx1; | |
178 | g[1] = hity1; | |
179 | g[2] = hitz1; | |
180 | gm->GtoL(index,g,l); | |
181 | x1l = l[0]; | |
182 | y1l = l[1]; | |
183 | z1l = l[2]; | |
184 | ||
185 | g[0] = hitx2; | |
186 | g[1] = hity2; | |
187 | g[2] = hitz2; | |
188 | gm->GtoL(index,g,l); | |
189 | x2l = l[0]; | |
190 | y2l = l[1]; | |
191 | z2l = l[2]; | |
192 | ||
37ffef26 | 193 | // Modified by N.Carrer. In very rare occasions the track may be just |
194 | // tangent to the module. Therefore the entrance and exit points have the | |
195 | // same y. | |
196 | if( (y2l-y1l) != 0.0 ) { | |
197 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
198 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
199 | } else { | |
200 | xMl = 0.5*(x1l+x2l); | |
201 | zMl = 0.5*(z1l+z2l); | |
202 | } | |
58005f18 | 203 | |
3bd79107 | 204 | l[0] = xMl; |
205 | l[1] = yMl; | |
206 | l[2] = zMl; | |
207 | gm->LtoG(index,l,g); | |
208 | xMg = g[0]; | |
209 | yMg = g[1]; | |
210 | zMg = g[2]; | |
58005f18 | 211 | } |
3bd79107 | 212 | //___________________________________________________________________________ |
213 | Double_t AliITSmodule::PathLength(Int_t index,AliITShit *itsHit1, | |
214 | AliITShit *itsHit2){ | |
215 | // path lenght | |
216 | Float_t x1g,y1g,z1g; | |
217 | Float_t x2g,y2g,z2g; | |
218 | Double_t s; | |
58005f18 | 219 | |
3bd79107 | 220 | itsHit1->GetPositionG(x1g,y1g,z1g); |
221 | itsHit2->GetPositionG(x2g,y2g,z2g); | |
58005f18 | 222 | |
3bd79107 | 223 | s = TMath::Sqrt( ((Double_t)(x2g-x1g)*(Double_t)(x2g-x1g)) + |
224 | ((Double_t)(y2g-y1g)*(Double_t)(y2g-y1g)) + | |
225 | ((Double_t)(z2g-z1g)*(Double_t)(z2g-z1g)) ); | |
226 | return s; | |
227 | } | |
228 | //___________________________________________________________________________ | |
229 | void AliITSmodule::PathLength(Int_t index, | |
230 | Float_t x,Float_t y,Float_t z, | |
231 | Int_t status,Int_t &nseg, | |
232 | Float_t &x1,Float_t &y1,Float_t &z1, | |
233 | Float_t &dx1,Float_t &dy1,Float_t &dz1, | |
234 | Int_t &flag){ | |
235 | // path length | |
236 | static Float_t x0,y0,z0; | |
58005f18 | 237 | |
3bd79107 | 238 | if (status == 66){ // entering |
239 | x0 = x; | |
240 | y0 = y; | |
241 | z0 = z; | |
242 | nseg = 0; | |
243 | flag = 1; | |
244 | }else{ | |
245 | x1 = x0; | |
246 | y1 = y0; | |
247 | z1 = z0; | |
248 | dx1 = x-x1; | |
249 | dy1 = y-y1; | |
250 | dz1 = z-z1; | |
251 | nseg++; | |
252 | if (status == 68) flag = 0; //exiting | |
253 | else flag = 2; //inside | |
254 | x0 = x; | |
255 | y0 = y; | |
256 | z0 = z; | |
257 | } // end if | |
58005f18 | 258 | } |
3bd79107 | 259 | //___________________________________________________________________________ |
260 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
261 | Double_t &c,Double_t &d, | |
262 | Double_t &e,Double_t &f,Double_t &de){ | |
263 | // line segment | |
264 | static Int_t hitindex0; | |
265 | AliITShit *h0,*h1; | |
58005f18 | 266 | |
3bd79107 | 267 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
58005f18 | 268 | |
3bd79107 | 269 | h1 = (AliITShit *) (fHitsM->At(hitindex)); |
270 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
271 | // step | |
272 | hitindex0 = hitindex; | |
273 | return kFALSE; | |
274 | } // end if StatusEntering() | |
275 | // else stepping | |
276 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
277 | de = h1->GetIonization(); | |
278 | h0->GetPositionL(a,c,e); | |
279 | h1->GetPositionL(b,d,f); | |
280 | b = b - a; | |
281 | d = d - c; | |
282 | f = f - e; | |
283 | hitindex0 = hitindex; | |
284 | return kTRUE; | |
285 | } | |
286 | //___________________________________________________________________________ | |
287 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
288 | Double_t &c,Double_t &d, | |
289 | Double_t &e,Double_t &f,Double_t &de){ | |
290 | // line segment | |
291 | static Int_t hitindex0; | |
292 | AliITShit *h0,*h1; | |
58005f18 | 293 | |
3bd79107 | 294 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
295 | ||
296 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
297 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
298 | // step | |
299 | hitindex0 = hitindex; | |
300 | return kFALSE; | |
301 | } // end if StatusEntering() | |
302 | // else stepping | |
303 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
304 | de = h1->GetIonization(); | |
305 | h0->GetPositionG(a,c,e); | |
306 | h1->GetPositionG(b,d,f); | |
307 | b = b - a; | |
308 | d = d - c; | |
309 | f = f - e; | |
310 | hitindex0 = hitindex; | |
311 | return kTRUE; | |
312 | } | |
313 | //___________________________________________________________________________ | |
314 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
315 | Double_t &c,Double_t &d, | |
316 | Double_t &e,Double_t &f, | |
317 | Double_t &de,Int_t &track){ | |
318 | // line segmente | |
319 | static Int_t hitindex0; | |
320 | AliITShit *h0,*h1; | |
321 | ||
322 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
323 | ||
324 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
325 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
326 | // step | |
327 | hitindex0 = hitindex; | |
328 | track = h1->GetTrack(); | |
329 | return kFALSE; | |
330 | } // end if StatusEntering() | |
331 | // else stepping | |
332 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
333 | de = h1->GetIonization(); | |
334 | h0->GetPositionL(a,c,e); | |
335 | h1->GetPositionL(b,d,f); | |
336 | b = b - a; | |
337 | d = d - c; | |
338 | f = f - e; | |
339 | hitindex0 = hitindex; | |
340 | track = h1->GetTrack(); | |
341 | return kTRUE; | |
342 | } | |
343 | //___________________________________________________________________________ | |
344 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
345 | Double_t &c,Double_t &d, | |
346 | Double_t &e,Double_t &f, | |
347 | Double_t &de,Int_t &track){ | |
348 | // line segment | |
349 | static Int_t hitindex0; | |
350 | AliITShit *h0,*h1; | |
351 | ||
352 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
353 | ||
354 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
355 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
356 | // step | |
357 | hitindex0 = hitindex; | |
358 | track = h1->GetTrack(); | |
359 | return kFALSE; | |
360 | } // end if StatusEntering() | |
361 | // else stepping | |
362 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
363 | de = h1->GetIonization(); | |
364 | h0->GetPositionG(a,c,e); | |
365 | h1->GetPositionG(b,d,f); | |
366 | b = b - a; | |
367 | d = d - c; | |
368 | f = f - e; | |
369 | hitindex0 = hitindex; | |
370 | track = h1->GetTrack(); | |
371 | return kTRUE; | |
58005f18 | 372 | } |
3bd79107 | 373 | //___________________________________________________________________________ |
374 | void AliITSmodule::MedianHitL(Int_t index, | |
375 | AliITShit *itsHit1, | |
376 | AliITShit *itsHit2, | |
377 | Float_t &xMl, Float_t &yMl, Float_t &zMl){ | |
378 | // median hit | |
379 | Float_t x1l,y1l,z1l; | |
380 | Float_t x2l,y2l,z2l; | |
381 | ||
382 | itsHit1->GetPositionL(x1l,y1l,z1l); | |
383 | itsHit2->GetPositionL(x2l,y2l,z2l); | |
58005f18 | 384 | |
3bd79107 | 385 | yMl = 0.0; |
37ffef26 | 386 | // Modified by N.Carrer. In very rare occasions the track may be just |
387 | // tangent to the module. Therefore the entrance and exit points have the | |
388 | // same y. | |
389 | if( (y2l-y1l) != 0.0 ) { | |
390 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
391 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
392 | } else { | |
393 | xMl = 0.5*(x1l+x2l); | |
394 | zMl = 0.5*(z1l+z2l); | |
395 | } | |
3bd79107 | 396 | } |
58005f18 | 397 | //___________________________________________________________________________ |
3bd79107 | 398 | void AliITSmodule::MedianHit(Int_t index, |
399 | Float_t xg,Float_t yg,Float_t zg, | |
400 | Int_t status, | |
401 | Float_t &xMg,Float_t &yMg,Float_t &zMg, | |
402 | Int_t &flag){ | |
403 | // median hit | |
404 | static Float_t x1,y1,z1; | |
405 | ||
406 | if (status == 66){ // entering | |
407 | x1 = xg; | |
408 | y1 = yg; | |
409 | z1 = zg; | |
410 | flag = 1; | |
411 | } // end if | |
412 | if (status == 68){ // exiting | |
413 | MedianHitG(index,x1,y1,z1,xg,yg,zg,xMg,yMg,zMg); | |
414 | flag = 0; | |
415 | } // end if | |
416 | if ((status != 66) && (status != 68)) flag = 1; | |
58005f18 | 417 | } |
3bd79107 | 418 | //___________________________________________________________________________ |
419 | void AliITSmodule::GetID(Int_t &lay,Int_t &lad,Int_t &det){ | |
420 | // get ID | |
421 | fITS->GetITSgeom()->GetModuleId(fIndex,lay,lad,det); | |
422 | return ; | |
423 | } | |
424 |