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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 | $Log$ | |
b9d0a01d | 18 | Revision 1.10.4.2 2002/07/24 09:27:50 alibrary |
19 | Updating on VirtualMC | |
20 | ||
21 | Revision 1.13 2002/06/12 18:59:47 nilsen | |
22 | Added Starting track location to hit class and related changes to modules. | |
23 | This is at present still fully backwards compatible since starting hits | |
24 | are still written to the file. When aliroot v4.0 will be released, this | |
25 | backwards compatiblity will be broken by removing the enterence hit, and making | |
26 | the nessesary changes to module at that time. | |
27 | ||
7e3ded1b | 28 | Revision 1.12 2002/06/10 17:31:03 nilsen |
29 | Replaced TArrayI expansion with Root version. | |
30 | ||
ea008941 | 31 | Revision 1.11 2002/06/04 18:43:15 nilsen |
32 | Fix to avoid divide by zero problem in MedianHitG and MedianHitL for track | |
33 | that enter and exit the same side of a detector sensitive volume. Needed | |
34 | for Fast simulation. Thanks to Nicola Carrer. | |
35 | ||
37ffef26 | 36 | Revision 1.10 2002/03/15 17:21:54 nilsen |
37 | Removed zero-ing of fModules variable in constructors. | |
38 | ||
b0f0d5a5 | 39 | Revision 1.9 2000/10/04 19:46:39 barbera |
40 | Corrected by F. Carminati for v3.04 | |
41 | ||
114da3a4 | 42 | Revision 1.8 2000/10/02 16:32:57 barbera |
43 | Forward declarations added and formatting | |
44 | ||
0b2d41b4 | 45 | Revision 1.3.4.8 2000/10/02 15:55:26 barbera |
46 | Forward declarations added and formatting | |
47 | ||
48 | Revision 1.7 2000/09/22 12:36:38 nilsen | |
49 | Minor changes to improve compilation and create less NOISE. | |
50 | ||
ff61221e | 51 | Revision 1.6 2000/07/10 16:07:18 fca |
52 | Release version of ITS code | |
53 | ||
3bd79107 | 54 | Revision 1.3.4.2 2000/03/02 21:42:29 nilsen |
55 | Linked AliDetector::fDigit to AliITSmodule::fDigitsM and AliITS::fITSRecPoints | |
56 | to AliITSmodule::fRecPointsM. Renamed AliITSmodule::fPointsM to fRecPointsM. | |
57 | Removed the deletion of fDigitsM from the distructor since it is only a copy | |
58 | of what is in AliDetector. Fixed a bug in the functions LineSegmentL and | |
59 | LineSegmentG. Added two new versions of LineSegmentL and LineSegmentG to | |
60 | additionaly return track number from the hit. Removed FastPoint function, | |
61 | haven't found anywere it was used, also it had very many problems, should | |
62 | just call FastPointSPD... . | |
63 | ||
64 | Revision 1.3.4.1 2000/01/12 19:03:32 nilsen | |
65 | This is the version of the files after the merging done in December 1999. | |
66 | See the ReadMe110100.txt file for details | |
67 | ||
68 | Revision 1.3 1999/10/04 15:20:12 fca | |
69 | Correct syntax accepted by g++ but not standard for static members, remove minor warnings | |
70 | ||
ad0e60d9 | 71 | Revision 1.2 1999/09/29 09:24:20 fca |
72 | Introduction of the Copyright and cvs Log | |
73 | ||
4c039060 | 74 | */ |
75 | ||
ff61221e | 76 | #include <TArrayI.h> |
77 | ||
114da3a4 | 78 | #include <stdlib.h> |
3bd79107 | 79 | |
58005f18 | 80 | #include "AliRun.h" |
3bd79107 | 81 | #include "AliITS.h" |
ff61221e | 82 | #include "AliITShit.h" |
83 | #include "AliITSmodule.h" | |
84 | #include "AliITSgeom.h" | |
58005f18 | 85 | |
86 | ClassImp(AliITSmodule) | |
87 | ||
88 | //_______________________________________________________________________ | |
89 | // | |
90 | // Impementation of class AliITSmodule | |
91 | // | |
3bd79107 | 92 | // created by: A. Bouchm, W. Peryt, S. Radomski, P. Skowronski |
58005f18 | 93 | // R. Barbers, B. Batyunia, B. S. Nilsen |
94 | // ver 1.0 CERN 16.09.1999 | |
95 | //_______________________________________________________________________ | |
58005f18 | 96 | //________________________________________________________________________ |
97 | // | |
98 | // Constructors and deconstructor | |
99 | //________________________________________________________________________ | |
100 | // | |
3bd79107 | 101 | AliITSmodule::AliITSmodule() { |
b0f0d5a5 | 102 | // constructor |
103 | ||
3bd79107 | 104 | fHitsM = 0; |
105 | fTrackIndex = 0; | |
106 | fHitIndex = 0; | |
107 | fITS = 0; | |
58005f18 | 108 | |
3bd79107 | 109 | } |
110 | //_________________________________________________________________________ | |
111 | AliITSmodule::AliITSmodule(Int_t index) { | |
112 | // constructor | |
58005f18 | 113 | |
3bd79107 | 114 | fIndex = index; |
115 | fHitsM = new TObjArray(); | |
116 | fTrackIndex = new TArrayI(16); | |
117 | fHitIndex = new TArrayI(16); | |
118 | fITS = (AliITS*)(gAlice->GetDetector("ITS")); | |
119 | } | |
120 | //__________________________________________________________________________ | |
121 | AliITSmodule::~AliITSmodule() { | |
122 | // The destructor for AliITSmodule. Before destoring AliITSmodule | |
123 | // we must first destroy all of it's members. | |
58005f18 | 124 | |
3bd79107 | 125 | if(fHitsM){ |
e8189707 | 126 | for(Int_t i=0;i<fHitsM->GetEntriesFast();i++) |
3bd79107 | 127 | delete ((AliITShit *)(fHitsM->At(i))); |
128 | // must delete each object in the TObjArray. | |
129 | delete fHitsM; | |
130 | } // end if | |
131 | delete fTrackIndex; | |
132 | delete fHitIndex; | |
133 | fITS = 0; // We don't delete this pointer since it is just a copy. | |
134 | } | |
135 | //____________________________________________________________________________ | |
136 | AliITSmodule::AliITSmodule(const AliITSmodule &source){ | |
137 | //////////////////////////////////////////////////////////////////////// | |
138 | // Copy Constructor | |
139 | //////////////////////////////////////////////////////////////////////// | |
140 | printf("AliITSmodule error: AliITSmodule class has not to be copied! Exit.\n"); | |
141 | exit(1); | |
58005f18 | 142 | } |
143 | ||
3bd79107 | 144 | //_____________________________________________________________________________ |
145 | AliITSmodule& AliITSmodule::operator=(const AliITSmodule &source){ | |
146 | //////////////////////////////////////////////////////////////////////// | |
147 | // Assignment operator | |
148 | //////////////////////////////////////////////////////////////////////// | |
149 | printf("AliITSmodule error: AliITSmodule class has not to be copied! Exit.\n"); | |
150 | exit(1); | |
e8189707 | 151 | return *this; // fake return neded on Sun |
3bd79107 | 152 | } |
58005f18 | 153 | |
154 | //_________________________________________________________________________ | |
3bd79107 | 155 | // |
156 | // Hits management | |
157 | //__________________________________________________________________________ | |
158 | Int_t AliITSmodule::AddHit(AliITShit* hit,Int_t t,Int_t h) { | |
159 | // Hits management | |
58005f18 | 160 | |
ff61221e | 161 | //printf("AddHit: beginning hit %p t h %d %d\n",hit,t,h); |
3bd79107 | 162 | fHitsM->AddLast(new AliITShit(*hit)); |
163 | Int_t fNhitsM = fHitsM->GetEntriesFast(); | |
164 | if(fNhitsM-1>=fTrackIndex->GetSize()){ // need to expand the TArrayI | |
ea008941 | 165 | fTrackIndex->Set(fNhitsM+64); |
3bd79107 | 166 | } // end if |
167 | if(fNhitsM-1>=fHitIndex->GetSize()){ // need to expand the TArrayI | |
ea008941 | 168 | fHitIndex->Set(fNhitsM+64); |
3bd79107 | 169 | } // end if |
170 | (*fTrackIndex)[fNhitsM-1] = t; | |
171 | (*fHitIndex)[fNhitsM-1] = h; | |
172 | return fNhitsM; | |
173 | } | |
3bd79107 | 174 | //___________________________________________________________________________ |
175 | Double_t AliITSmodule::PathLength(Int_t index,AliITShit *itsHit1, | |
176 | AliITShit *itsHit2){ | |
177 | // path lenght | |
178 | Float_t x1g,y1g,z1g; | |
179 | Float_t x2g,y2g,z2g; | |
180 | Double_t s; | |
58005f18 | 181 | |
3bd79107 | 182 | itsHit1->GetPositionG(x1g,y1g,z1g); |
183 | itsHit2->GetPositionG(x2g,y2g,z2g); | |
58005f18 | 184 | |
3bd79107 | 185 | s = TMath::Sqrt( ((Double_t)(x2g-x1g)*(Double_t)(x2g-x1g)) + |
186 | ((Double_t)(y2g-y1g)*(Double_t)(y2g-y1g)) + | |
187 | ((Double_t)(z2g-z1g)*(Double_t)(z2g-z1g)) ); | |
188 | return s; | |
189 | } | |
190 | //___________________________________________________________________________ | |
191 | void AliITSmodule::PathLength(Int_t index, | |
192 | Float_t x,Float_t y,Float_t z, | |
193 | Int_t status,Int_t &nseg, | |
194 | Float_t &x1,Float_t &y1,Float_t &z1, | |
195 | Float_t &dx1,Float_t &dy1,Float_t &dz1, | |
196 | Int_t &flag){ | |
197 | // path length | |
198 | static Float_t x0,y0,z0; | |
58005f18 | 199 | |
7e3ded1b | 200 | if ((status&0x0002)!=0){ // entering |
3bd79107 | 201 | x0 = x; |
202 | y0 = y; | |
203 | z0 = z; | |
204 | nseg = 0; | |
205 | flag = 1; | |
206 | }else{ | |
207 | x1 = x0; | |
208 | y1 = y0; | |
209 | z1 = z0; | |
210 | dx1 = x-x1; | |
211 | dy1 = y-y1; | |
212 | dz1 = z-z1; | |
213 | nseg++; | |
7e3ded1b | 214 | if ((status&0x0004)!=0) flag = 0; //exiting |
215 | if ((status&0x0001)!=0) flag = 2; // inside | |
216 | else flag = 2; //inside ? | |
3bd79107 | 217 | x0 = x; |
218 | y0 = y; | |
219 | z0 = z; | |
220 | } // end if | |
58005f18 | 221 | } |
3bd79107 | 222 | //___________________________________________________________________________ |
223 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
224 | Double_t &c,Double_t &d, | |
225 | Double_t &e,Double_t &f,Double_t &de){ | |
226 | // line segment | |
227 | static Int_t hitindex0; | |
228 | AliITShit *h0,*h1; | |
58005f18 | 229 | |
3bd79107 | 230 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
58005f18 | 231 | |
3bd79107 | 232 | h1 = (AliITShit *) (fHitsM->At(hitindex)); |
233 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
234 | // step | |
235 | hitindex0 = hitindex; | |
236 | return kFALSE; | |
237 | } // end if StatusEntering() | |
238 | // else stepping | |
239 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
240 | de = h1->GetIonization(); | |
241 | h0->GetPositionL(a,c,e); | |
242 | h1->GetPositionL(b,d,f); | |
243 | b = b - a; | |
244 | d = d - c; | |
245 | f = f - e; | |
246 | hitindex0 = hitindex; | |
247 | return kTRUE; | |
248 | } | |
249 | //___________________________________________________________________________ | |
250 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
251 | Double_t &c,Double_t &d, | |
252 | Double_t &e,Double_t &f,Double_t &de){ | |
253 | // line segment | |
254 | static Int_t hitindex0; | |
255 | AliITShit *h0,*h1; | |
58005f18 | 256 | |
3bd79107 | 257 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
258 | ||
259 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
260 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
261 | // step | |
262 | hitindex0 = hitindex; | |
263 | return kFALSE; | |
264 | } // end if StatusEntering() | |
265 | // else stepping | |
266 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
267 | de = h1->GetIonization(); | |
268 | h0->GetPositionG(a,c,e); | |
269 | h1->GetPositionG(b,d,f); | |
270 | b = b - a; | |
271 | d = d - c; | |
272 | f = f - e; | |
273 | hitindex0 = hitindex; | |
274 | return kTRUE; | |
275 | } | |
276 | //___________________________________________________________________________ | |
277 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
278 | Double_t &c,Double_t &d, | |
279 | Double_t &e,Double_t &f, | |
280 | Double_t &de,Int_t &track){ | |
281 | // line segmente | |
282 | static Int_t hitindex0; | |
283 | AliITShit *h0,*h1; | |
284 | ||
285 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
286 | ||
287 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
288 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
289 | // step | |
290 | hitindex0 = hitindex; | |
291 | track = h1->GetTrack(); | |
292 | return kFALSE; | |
293 | } // end if StatusEntering() | |
294 | // else stepping | |
295 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
296 | de = h1->GetIonization(); | |
297 | h0->GetPositionL(a,c,e); | |
298 | h1->GetPositionL(b,d,f); | |
299 | b = b - a; | |
300 | d = d - c; | |
301 | f = f - e; | |
302 | hitindex0 = hitindex; | |
303 | track = h1->GetTrack(); | |
304 | return kTRUE; | |
305 | } | |
306 | //___________________________________________________________________________ | |
307 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
308 | Double_t &c,Double_t &d, | |
309 | Double_t &e,Double_t &f, | |
310 | Double_t &de,Int_t &track){ | |
311 | // line segment | |
312 | static Int_t hitindex0; | |
313 | AliITShit *h0,*h1; | |
314 | ||
315 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
316 | ||
317 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
318 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
319 | // step | |
320 | hitindex0 = hitindex; | |
321 | track = h1->GetTrack(); | |
322 | return kFALSE; | |
323 | } // end if StatusEntering() | |
324 | // else stepping | |
325 | h0 = (AliITShit *) (fHitsM->At(hitindex0)); | |
326 | de = h1->GetIonization(); | |
327 | h0->GetPositionG(a,c,e); | |
328 | h1->GetPositionG(b,d,f); | |
329 | b = b - a; | |
330 | d = d - c; | |
331 | f = f - e; | |
332 | hitindex0 = hitindex; | |
333 | track = h1->GetTrack(); | |
334 | return kTRUE; | |
58005f18 | 335 | } |
7e3ded1b | 336 | //______________________________________________________________________ |
337 | Bool_t AliITSmodule::MedianHitG(AliITShit *h1,AliITShit *h2, | |
338 | Float_t &x,Float_t &y,Float_t &z){ | |
339 | // Computes the mean hit location for a set of hits that make up a track | |
340 | // passing through a volume. Returns kFALSE untill the the track leaves | |
341 | // the volume. | |
342 | // median hit | |
343 | AliITSgeom *gm = fITS->GetITSgeom(); | |
344 | Float_t x1l=0.,y1l=0.,z1l=0.; | |
345 | Float_t x2l=0.,y2l=0.,z2l=0.; | |
346 | Float_t xMl,yMl=0,zMl; | |
347 | Float_t l[3], g[3]; | |
348 | ||
349 | h1->GetPositionG(x1l,y1l,z1l); | |
350 | h2->GetPositionG(x2l,y2l,z2l); | |
351 | ||
352 | // Modified by N.Carrer. In very rare occasions the track may be just | |
353 | // tangent to the module. Therefore the entrance and exit points have the | |
354 | // same y. | |
355 | if( (y2l-y1l) != 0.0 ) { | |
356 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
357 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
358 | } else { | |
359 | xMl = 0.5*(x1l+x2l); | |
360 | zMl = 0.5*(z1l+z2l); | |
361 | } | |
362 | ||
363 | l[0] = xMl; | |
364 | l[1] = yMl; | |
365 | l[2] = zMl; | |
366 | gm->LtoG(h1->GetModule(),l,g); | |
367 | x = g[0]; | |
368 | y = g[1]; | |
369 | z = g[2]; | |
370 | return kTRUE; | |
371 | } | |
372 | //___________________________________________________________________________ | |
373 | void AliITSmodule::MedianHitG(Int_t index, | |
374 | Float_t hitx1,Float_t hity1,Float_t hitz1, | |
375 | Float_t hitx2,Float_t hity2,Float_t hitz2, | |
376 | Float_t &xMg, Float_t &yMg, Float_t &zMg){ | |
377 | // median hit | |
378 | AliITSgeom *gm = fITS->GetITSgeom(); | |
379 | Float_t x1l,y1l,z1l; | |
380 | Float_t x2l,y2l,z2l; | |
381 | Float_t xMl,yMl=0,zMl; | |
382 | Float_t l[3], g[3]; | |
383 | ||
384 | g[0] = hitx1; | |
385 | g[1] = hity1; | |
386 | g[2] = hitz1; | |
387 | gm->GtoL(index,g,l); | |
388 | x1l = l[0]; | |
389 | y1l = l[1]; | |
390 | z1l = l[2]; | |
391 | ||
392 | g[0] = hitx2; | |
393 | g[1] = hity2; | |
394 | g[2] = hitz2; | |
395 | gm->GtoL(index,g,l); | |
396 | x2l = l[0]; | |
397 | y2l = l[1]; | |
398 | z2l = l[2]; | |
399 | ||
400 | // Modified by N.Carrer. In very rare occasions the track may be just | |
401 | // tangent to the module. Therefore the entrance and exit points have the | |
402 | // same y. | |
403 | if( (y2l-y1l) != 0.0 ) { | |
404 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
405 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
406 | } else { | |
407 | xMl = 0.5*(x1l+x2l); | |
408 | zMl = 0.5*(z1l+z2l); | |
409 | } | |
410 | ||
411 | l[0] = xMl; | |
412 | l[1] = yMl; | |
413 | l[2] = zMl; | |
414 | gm->LtoG(index,l,g); | |
415 | xMg = g[0]; | |
416 | yMg = g[1]; | |
417 | zMg = g[2]; | |
418 | } | |
3bd79107 | 419 | //___________________________________________________________________________ |
7e3ded1b | 420 | Bool_t AliITSmodule::MedianHitL( AliITShit *itsHit1, |
3bd79107 | 421 | AliITShit *itsHit2, |
422 | Float_t &xMl, Float_t &yMl, Float_t &zMl){ | |
423 | // median hit | |
424 | Float_t x1l,y1l,z1l; | |
425 | Float_t x2l,y2l,z2l; | |
426 | ||
427 | itsHit1->GetPositionL(x1l,y1l,z1l); | |
428 | itsHit2->GetPositionL(x2l,y2l,z2l); | |
58005f18 | 429 | |
3bd79107 | 430 | yMl = 0.0; |
37ffef26 | 431 | // Modified by N.Carrer. In very rare occasions the track may be just |
432 | // tangent to the module. Therefore the entrance and exit points have the | |
433 | // same y. | |
434 | if( (y2l-y1l) != 0.0 ) { | |
435 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
436 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
437 | } else { | |
438 | xMl = 0.5*(x1l+x2l); | |
439 | zMl = 0.5*(z1l+z2l); | |
440 | } | |
7e3ded1b | 441 | return kTRUE; |
3bd79107 | 442 | } |
58005f18 | 443 | //___________________________________________________________________________ |
3bd79107 | 444 | void AliITSmodule::MedianHit(Int_t index, |
445 | Float_t xg,Float_t yg,Float_t zg, | |
446 | Int_t status, | |
447 | Float_t &xMg,Float_t &yMg,Float_t &zMg, | |
448 | Int_t &flag){ | |
449 | // median hit | |
450 | static Float_t x1,y1,z1; | |
451 | ||
7e3ded1b | 452 | if ((status&0x0002)!=0){ // entering |
3bd79107 | 453 | x1 = xg; |
454 | y1 = yg; | |
455 | z1 = zg; | |
456 | flag = 1; | |
7e3ded1b | 457 | } else if ((status&0x0004)!=0){ // exiting |
3bd79107 | 458 | MedianHitG(index,x1,y1,z1,xg,yg,zg,xMg,yMg,zMg); |
459 | flag = 0; | |
460 | } // end if | |
7e3ded1b | 461 | else flag = 1; |
58005f18 | 462 | } |
3bd79107 | 463 | //___________________________________________________________________________ |
464 | void AliITSmodule::GetID(Int_t &lay,Int_t &lad,Int_t &det){ | |
465 | // get ID | |
466 | fITS->GetITSgeom()->GetModuleId(fIndex,lay,lad,det); | |
467 | return ; | |
468 | } | |
469 |