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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 <TArrayI.h> | |
19 | ||
20 | #include <stdlib.h> | |
21 | ||
22 | #include "AliRun.h" | |
23 | #include "AliITS.h" | |
24 | #include "AliITShit.h" | |
25 | #include "AliITSmodule.h" | |
26 | #include "AliITSgeom.h" | |
27 | ||
28 | ClassImp(AliITSmodule) | |
29 | ||
30 | //_______________________________________________________________________ | |
31 | // | |
32 | // Impementation of class AliITSmodule | |
33 | // | |
34 | // created by: A. Bouchm, W. Peryt, S. Radomski, P. Skowronski | |
35 | // R. Barbers, B. Batyunia, B. S. Nilsen | |
36 | // ver 1.0 CERN 16.09.1999 | |
37 | //_______________________________________________________________________ | |
38 | //________________________________________________________________________ | |
39 | // | |
40 | // Constructors and deconstructor | |
41 | //________________________________________________________________________ | |
42 | // | |
43 | AliITSmodule::AliITSmodule(): | |
44 | fITS(0), | |
45 | fIndex(0), | |
46 | fHitsM(0), | |
47 | fTrackIndex(0), | |
48 | fHitIndex(0) { | |
49 | // constructor | |
50 | ||
51 | } | |
52 | //_________________________________________________________________________ | |
53 | AliITSmodule::AliITSmodule(Int_t index): | |
54 | fITS(0), | |
55 | fIndex(index), | |
56 | fHitsM(0), | |
57 | fTrackIndex(0), | |
58 | fHitIndex(0) { | |
59 | // constructor | |
60 | ||
61 | fHitsM = new TObjArray(); | |
62 | fTrackIndex = new TArrayI(16); | |
63 | fHitIndex = new TArrayI(16); | |
64 | fITS = (AliITS*)(gAlice->GetDetector("ITS")); | |
65 | } | |
66 | //__________________________________________________________________________ | |
67 | AliITSmodule::~AliITSmodule() { | |
68 | // The destructor for AliITSmodule. Before destoring AliITSmodule | |
69 | // we must first destroy all of it's members. | |
70 | ||
71 | if(fHitsM){ | |
72 | fHitsM->Delete(); | |
73 | delete fHitsM; | |
74 | fHitsM = 0; | |
75 | } // end if | |
76 | delete fTrackIndex; | |
77 | delete fHitIndex; | |
78 | fITS = 0; // We don't delete this pointer since it is just a copy. | |
79 | } | |
80 | //____________________________________________________________________________ | |
81 | AliITSmodule::AliITSmodule(const AliITSmodule &source):TObject(source), | |
82 | fITS(source.fITS), | |
83 | fIndex(source.fIndex), | |
84 | fHitsM(source.fHitsM), | |
85 | fTrackIndex(source.fTrackIndex), | |
86 | fHitIndex(source.fHitIndex){ | |
87 | //////////////////////////////////////////////////////////////////////// | |
88 | // Copy Constructor | |
89 | //////////////////////////////////////////////////////////////////////// | |
90 | ||
91 | } | |
92 | //_____________________________________________________________________________ | |
93 | AliITSmodule& AliITSmodule::operator=(const AliITSmodule &source){ | |
94 | //////////////////////////////////////////////////////////////////////// | |
95 | // Assignment operator | |
96 | //////////////////////////////////////////////////////////////////////// | |
97 | this->~AliITSmodule(); | |
98 | new(this) AliITSmodule(source); | |
99 | return *this; | |
100 | } | |
101 | //_________________________________________________________________________ | |
102 | // | |
103 | // Hits management | |
104 | //__________________________________________________________________________ | |
105 | Int_t AliITSmodule::AddHit(AliITShit* hit,Int_t t,Int_t h) { | |
106 | // Hits management | |
107 | ||
108 | //printf("AddHit: beginning hit %p t h %d %d\n",hit,t,h); | |
109 | fHitsM->AddLast(new AliITShit(*hit)); | |
110 | Int_t fNhitsM = fHitsM->GetEntriesFast(); | |
111 | if(fNhitsM-1>=fTrackIndex->GetSize()){ // need to expand the TArrayI | |
112 | fTrackIndex->Set(fNhitsM+64); | |
113 | } // end if | |
114 | if(fNhitsM-1>=fHitIndex->GetSize()){ // need to expand the TArrayI | |
115 | fHitIndex->Set(fNhitsM+64); | |
116 | } // end if | |
117 | (*fTrackIndex)[fNhitsM-1] = t; | |
118 | (*fHitIndex)[fNhitsM-1] = h; | |
119 | return fNhitsM; | |
120 | } | |
121 | //___________________________________________________________________________ | |
122 | Double_t AliITSmodule::PathLength(Int_t index,AliITShit *itsHit1, | |
123 | AliITShit *itsHit2) { | |
124 | // path lenght | |
125 | Float_t x1g,y1g,z1g; | |
126 | Float_t x2g,y2g,z2g; | |
127 | Double_t s; | |
128 | ||
129 | index = 0; | |
130 | itsHit1->GetPositionG(x1g,y1g,z1g); | |
131 | itsHit2->GetPositionG(x2g,y2g,z2g); | |
132 | ||
133 | s = TMath::Sqrt( ((Double_t)(x2g-x1g)*(Double_t)(x2g-x1g)) + | |
134 | ((Double_t)(y2g-y1g)*(Double_t)(y2g-y1g)) + | |
135 | ((Double_t)(z2g-z1g)*(Double_t)(z2g-z1g)) ); | |
136 | return s; | |
137 | } | |
138 | //___________________________________________________________________________ | |
139 | void AliITSmodule::PathLength(Int_t index, | |
140 | Float_t x,Float_t y,Float_t z, | |
141 | Int_t status,Int_t &nseg, | |
142 | Float_t &x1,Float_t &y1,Float_t &z1, | |
143 | Float_t &dx1,Float_t &dy1,Float_t &dz1, | |
144 | Int_t &flag) const{ | |
145 | // path length | |
146 | static Float_t x0,y0,z0; | |
147 | ||
148 | index = 0; | |
149 | if ((status&0x0002)!=0){ // entering | |
150 | x0 = x; | |
151 | y0 = y; | |
152 | z0 = z; | |
153 | nseg = 0; | |
154 | flag = 1; | |
155 | }else{ | |
156 | x1 = x0; | |
157 | y1 = y0; | |
158 | z1 = z0; | |
159 | dx1 = x-x1; | |
160 | dy1 = y-y1; | |
161 | dz1 = z-z1; | |
162 | nseg++; | |
163 | if ((status&0x0004)!=0) flag = 0; //exiting | |
164 | if ((status&0x0001)!=0) flag = 2; // inside | |
165 | else flag = 2; //inside ? | |
166 | x0 = x; | |
167 | y0 = y; | |
168 | z0 = z; | |
169 | } // end if | |
170 | } | |
171 | //___________________________________________________________________________ | |
172 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
173 | Double_t &c,Double_t &d, | |
174 | Double_t &e,Double_t &f,Double_t &de){ | |
175 | // line segment | |
176 | AliITShit *h1; | |
177 | Double_t t; | |
178 | ||
179 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
180 | ||
181 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
182 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
183 | // step | |
184 | return kFALSE; | |
185 | } // end if StatusEntering() | |
186 | // else stepping | |
187 | de = h1->GetIonization(); | |
188 | h1->GetPositionL0(a,c,e,t); | |
189 | h1->GetPositionL(b,d,f); | |
190 | b = b - a; | |
191 | d = d - c; | |
192 | f = f - e; | |
193 | return kTRUE; | |
194 | } | |
195 | //___________________________________________________________________________ | |
196 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
197 | Double_t &c,Double_t &d, | |
198 | Double_t &e,Double_t &f,Double_t &de){ | |
199 | // line segment | |
200 | AliITShit *h1; | |
201 | Double_t t; | |
202 | ||
203 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
204 | ||
205 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
206 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
207 | // step | |
208 | return kFALSE; | |
209 | } // end if StatusEntering() | |
210 | // else stepping | |
211 | de = h1->GetIonization(); | |
212 | h1->GetPositionG0(a,c,e,t); | |
213 | h1->GetPositionG(b,d,f); | |
214 | b = b - a; | |
215 | d = d - c; | |
216 | f = f - e; | |
217 | return kTRUE; | |
218 | } | |
219 | //___________________________________________________________________________ | |
220 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
221 | Double_t &c,Double_t &d, | |
222 | Double_t &e,Double_t &f, | |
223 | Double_t &de,Int_t &track){ | |
224 | // line segmente | |
225 | AliITShit *h1; | |
226 | Double_t t; | |
227 | ||
228 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
229 | ||
230 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
231 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
232 | // step | |
233 | track = h1->GetTrack(); | |
234 | return kFALSE; | |
235 | } // end if StatusEntering() | |
236 | // else stepping | |
237 | de = h1->GetIonization(); | |
238 | h1->GetPositionL0(a,c,e,t); | |
239 | h1->GetPositionL(b,d,f); | |
240 | b = b - a; | |
241 | d = d - c; | |
242 | f = f - e; | |
243 | track = h1->GetTrack(); | |
244 | return kTRUE; | |
245 | } | |
246 | //___________________________________________________________________________ | |
247 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
248 | Double_t &c,Double_t &d, | |
249 | Double_t &e,Double_t &f, | |
250 | Double_t &de,Int_t &track){ | |
251 | // line segment | |
252 | AliITShit *h1; | |
253 | Double_t t; | |
254 | ||
255 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
256 | ||
257 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
258 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
259 | // step | |
260 | track = h1->GetTrack(); | |
261 | return kFALSE; | |
262 | } // end if StatusEntering() | |
263 | // else stepping | |
264 | de = h1->GetIonization(); | |
265 | h1->GetPositionG0(a,c,e,t); | |
266 | h1->GetPositionG(b,d,f); | |
267 | b = b - a; | |
268 | d = d - c; | |
269 | f = f - e; | |
270 | track = h1->GetTrack(); | |
271 | return kTRUE; | |
272 | } | |
273 | //______________________________________________________________________ | |
274 | Bool_t AliITSmodule::MedianHitG(AliITShit *h1,AliITShit *h2, | |
275 | Float_t &x,Float_t &y,Float_t &z){ | |
276 | // Computes the mean hit location for a set of hits that make up a track | |
277 | // passing through a volume. Returns kFALSE untill the the track leaves | |
278 | // the volume. | |
279 | // median hit | |
280 | AliITSgeom *gm = fITS->GetITSgeom(); | |
281 | Float_t x1l=0.,y1l=0.,z1l=0.; | |
282 | Float_t x2l=0.,y2l=0.,z2l=0.; | |
283 | Float_t xMl,yMl=0,zMl; | |
284 | Float_t l[3], g[3]; | |
285 | ||
286 | h1->GetPositionG(x1l,y1l,z1l); | |
287 | h2->GetPositionG(x2l,y2l,z2l); | |
288 | ||
289 | if((y2l*y1l)<0.) { | |
290 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
291 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
292 | } else { | |
293 | xMl = 0.5*(x1l+x2l); | |
294 | zMl = 0.5*(z1l+z2l); | |
295 | } | |
296 | ||
297 | l[0] = xMl; | |
298 | l[1] = yMl; | |
299 | l[2] = zMl; | |
300 | gm->LtoG(h1->GetModule(),l,g); | |
301 | x = g[0]; | |
302 | y = g[1]; | |
303 | z = g[2]; | |
304 | return kTRUE; | |
305 | } | |
306 | //___________________________________________________________________________ | |
307 | void AliITSmodule::MedianHitG(Int_t index, | |
308 | Float_t hitx1,Float_t hity1,Float_t hitz1, | |
309 | Float_t hitx2,Float_t hity2,Float_t hitz2, | |
310 | Float_t &xMg, Float_t &yMg, Float_t &zMg){ | |
311 | // median hit | |
312 | AliITSgeom *gm = fITS->GetITSgeom(); | |
313 | Float_t x1l,y1l,z1l; | |
314 | Float_t x2l,y2l,z2l; | |
315 | Float_t xMl,yMl=0,zMl; | |
316 | Float_t l[3], g[3]; | |
317 | ||
318 | g[0] = hitx1; | |
319 | g[1] = hity1; | |
320 | g[2] = hitz1; | |
321 | gm->GtoL(index,g,l); | |
322 | x1l = l[0]; | |
323 | y1l = l[1]; | |
324 | z1l = l[2]; | |
325 | ||
326 | g[0] = hitx2; | |
327 | g[1] = hity2; | |
328 | g[2] = hitz2; | |
329 | gm->GtoL(index,g,l); | |
330 | x2l = l[0]; | |
331 | y2l = l[1]; | |
332 | z2l = l[2]; | |
333 | ||
334 | if((y2l*y1l)<0.) { | |
335 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
336 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
337 | } else { | |
338 | xMl = 0.5*(x1l+x2l); | |
339 | zMl = 0.5*(z1l+z2l); | |
340 | } | |
341 | ||
342 | l[0] = xMl; | |
343 | l[1] = yMl; | |
344 | l[2] = zMl; | |
345 | gm->LtoG(index,l,g); | |
346 | xMg = g[0]; | |
347 | yMg = g[1]; | |
348 | zMg = g[2]; | |
349 | } | |
350 | //___________________________________________________________________________ | |
351 | Bool_t AliITSmodule::MedianHitL( AliITShit *itsHit1, | |
352 | AliITShit *itsHit2, | |
353 | Float_t &xMl, Float_t &yMl, Float_t &zMl) const{ | |
354 | // median hit | |
355 | Float_t x1l,y1l,z1l; | |
356 | Float_t x2l,y2l,z2l; | |
357 | ||
358 | itsHit1->GetPositionL(x1l,y1l,z1l); | |
359 | itsHit2->GetPositionL(x2l,y2l,z2l); | |
360 | ||
361 | yMl = 0.0; | |
362 | if((y2l*y1l)<0.) { | |
363 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; | |
364 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
365 | } else { | |
366 | xMl = 0.5*(x1l+x2l); | |
367 | zMl = 0.5*(z1l+z2l); | |
368 | } | |
369 | return kTRUE; | |
370 | } | |
371 | //___________________________________________________________________________ | |
372 | void AliITSmodule::MedianHit(Int_t index, | |
373 | Float_t xg,Float_t yg,Float_t zg, | |
374 | Int_t status, | |
375 | Float_t &xMg,Float_t &yMg,Float_t &zMg, | |
376 | Int_t &flag){ | |
377 | // median hit | |
378 | static Float_t x1,y1,z1; | |
379 | ||
380 | if ((status&0x0002)!=0){ // entering | |
381 | x1 = xg; | |
382 | y1 = yg; | |
383 | z1 = zg; | |
384 | flag = 1; | |
385 | } else if ((status&0x0004)!=0){ // exiting | |
386 | MedianHitG(index,x1,y1,z1,xg,yg,zg,xMg,yMg,zMg); | |
387 | flag = 0; | |
388 | } // end if | |
389 | else flag = 1; | |
390 | } | |
391 | //___________________________________________________________________________ | |
392 | void AliITSmodule::GetID(Int_t &lay,Int_t &lad,Int_t &det){ | |
393 | // get ID | |
394 | fITS->GetITSgeom()->GetModuleId(fIndex,lay,lad,det); | |
395 | return ; | |
396 | } | |
397 |