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4c039060 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
803d1ab0 | 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 | ||
803d1ab0 | 16 | /* $Id$ */ |
4c039060 | 17 | |
ff61221e | 18 | #include <TArrayI.h> |
19 | ||
114da3a4 | 20 | #include <stdlib.h> |
3bd79107 | 21 | |
58005f18 | 22 | #include "AliRun.h" |
3bd79107 | 23 | #include "AliITS.h" |
ff61221e | 24 | #include "AliITShit.h" |
25 | #include "AliITSmodule.h" | |
6599f311 | 26 | #include "AliITSgeomTGeo.h" |
58005f18 | 27 | |
28 | ClassImp(AliITSmodule) | |
29 | ||
30 | //_______________________________________________________________________ | |
31 | // | |
32 | // Impementation of class AliITSmodule | |
33 | // | |
3bd79107 | 34 | // created by: A. Bouchm, W. Peryt, S. Radomski, P. Skowronski |
58005f18 | 35 | // R. Barbers, B. Batyunia, B. S. Nilsen |
36 | // ver 1.0 CERN 16.09.1999 | |
37 | //_______________________________________________________________________ | |
58005f18 | 38 | //________________________________________________________________________ |
39 | // | |
40 | // Constructors and deconstructor | |
41 | //________________________________________________________________________ | |
42 | // | |
7537d03c | 43 | AliITSmodule::AliITSmodule(): |
44 | fITS(0), | |
45 | fIndex(0), | |
46 | fHitsM(0), | |
47 | fTrackIndex(0), | |
48 | fHitIndex(0) { | |
b0f0d5a5 | 49 | // constructor |
50 | ||
3bd79107 | 51 | } |
52 | //_________________________________________________________________________ | |
7537d03c | 53 | AliITSmodule::AliITSmodule(Int_t index): |
54 | fITS(0), | |
55 | fIndex(index), | |
56 | fHitsM(0), | |
57 | fTrackIndex(0), | |
58 | fHitIndex(0) { | |
3bd79107 | 59 | // constructor |
58005f18 | 60 | |
3bd79107 | 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. | |
58005f18 | 70 | |
3bd79107 | 71 | if(fHitsM){ |
279a35d7 | 72 | fHitsM->Delete(); |
73 | delete fHitsM; | |
74 | fHitsM = 0; | |
3bd79107 | 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 | //____________________________________________________________________________ | |
7537d03c | 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){ | |
3bd79107 | 87 | //////////////////////////////////////////////////////////////////////// |
88 | // Copy Constructor | |
89 | //////////////////////////////////////////////////////////////////////// | |
7537d03c | 90 | |
58005f18 | 91 | } |
3bd79107 | 92 | //_____________________________________________________________________________ |
93 | AliITSmodule& AliITSmodule::operator=(const AliITSmodule &source){ | |
94 | //////////////////////////////////////////////////////////////////////// | |
95 | // Assignment operator | |
96 | //////////////////////////////////////////////////////////////////////// | |
7537d03c | 97 | this->~AliITSmodule(); |
98 | new(this) AliITSmodule(source); | |
99 | return *this; | |
88cb7938 | 100 | } |
58005f18 | 101 | //_________________________________________________________________________ |
3bd79107 | 102 | // |
103 | // Hits management | |
104 | //__________________________________________________________________________ | |
105 | Int_t AliITSmodule::AddHit(AliITShit* hit,Int_t t,Int_t h) { | |
106 | // Hits management | |
58005f18 | 107 | |
ff61221e | 108 | //printf("AddHit: beginning hit %p t h %d %d\n",hit,t,h); |
3bd79107 | 109 | fHitsM->AddLast(new AliITShit(*hit)); |
110 | Int_t fNhitsM = fHitsM->GetEntriesFast(); | |
111 | if(fNhitsM-1>=fTrackIndex->GetSize()){ // need to expand the TArrayI | |
ea008941 | 112 | fTrackIndex->Set(fNhitsM+64); |
3bd79107 | 113 | } // end if |
114 | if(fNhitsM-1>=fHitIndex->GetSize()){ // need to expand the TArrayI | |
ea008941 | 115 | fHitIndex->Set(fNhitsM+64); |
3bd79107 | 116 | } // end if |
117 | (*fTrackIndex)[fNhitsM-1] = t; | |
118 | (*fHitIndex)[fNhitsM-1] = h; | |
119 | return fNhitsM; | |
120 | } | |
3bd79107 | 121 | //___________________________________________________________________________ |
416d7e17 | 122 | Double_t AliITSmodule::PathLength(const AliITShit *itsHit1, |
123 | const AliITShit *itsHit2) { | |
3bd79107 | 124 | // path lenght |
125 | Float_t x1g,y1g,z1g; | |
126 | Float_t x2g,y2g,z2g; | |
127 | Double_t s; | |
58005f18 | 128 | |
3bd79107 | 129 | itsHit1->GetPositionG(x1g,y1g,z1g); |
130 | itsHit2->GetPositionG(x2g,y2g,z2g); | |
58005f18 | 131 | |
3bd79107 | 132 | s = TMath::Sqrt( ((Double_t)(x2g-x1g)*(Double_t)(x2g-x1g)) + |
133 | ((Double_t)(y2g-y1g)*(Double_t)(y2g-y1g)) + | |
134 | ((Double_t)(z2g-z1g)*(Double_t)(z2g-z1g)) ); | |
135 | return s; | |
136 | } | |
137 | //___________________________________________________________________________ | |
475c592b | 138 | void AliITSmodule::PathLength(Float_t x,Float_t y,Float_t z, |
3bd79107 | 139 | Int_t status,Int_t &nseg, |
140 | Float_t &x1,Float_t &y1,Float_t &z1, | |
141 | Float_t &dx1,Float_t &dy1,Float_t &dz1, | |
7d62fb64 | 142 | Int_t &flag) const{ |
3bd79107 | 143 | // path length |
144 | static Float_t x0,y0,z0; | |
58005f18 | 145 | |
7e3ded1b | 146 | if ((status&0x0002)!=0){ // entering |
3bd79107 | 147 | x0 = x; |
148 | y0 = y; | |
149 | z0 = z; | |
150 | nseg = 0; | |
151 | flag = 1; | |
152 | }else{ | |
153 | x1 = x0; | |
154 | y1 = y0; | |
155 | z1 = z0; | |
156 | dx1 = x-x1; | |
157 | dy1 = y-y1; | |
158 | dz1 = z-z1; | |
159 | nseg++; | |
7e3ded1b | 160 | if ((status&0x0004)!=0) flag = 0; //exiting |
161 | if ((status&0x0001)!=0) flag = 2; // inside | |
162 | else flag = 2; //inside ? | |
3bd79107 | 163 | x0 = x; |
164 | y0 = y; | |
165 | z0 = z; | |
166 | } // end if | |
58005f18 | 167 | } |
3bd79107 | 168 | //___________________________________________________________________________ |
169 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
170 | Double_t &c,Double_t &d, | |
171 | Double_t &e,Double_t &f,Double_t &de){ | |
172 | // line segment | |
88cb7938 | 173 | AliITShit *h1; |
174 | Double_t t; | |
58005f18 | 175 | |
3bd79107 | 176 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
58005f18 | 177 | |
3bd79107 | 178 | h1 = (AliITShit *) (fHitsM->At(hitindex)); |
179 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
180 | // step | |
3bd79107 | 181 | return kFALSE; |
182 | } // end if StatusEntering() | |
183 | // else stepping | |
3bd79107 | 184 | de = h1->GetIonization(); |
88cb7938 | 185 | h1->GetPositionL0(a,c,e,t); |
3bd79107 | 186 | h1->GetPositionL(b,d,f); |
187 | b = b - a; | |
188 | d = d - c; | |
189 | f = f - e; | |
3bd79107 | 190 | return kTRUE; |
191 | } | |
192 | //___________________________________________________________________________ | |
193 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
194 | Double_t &c,Double_t &d, | |
195 | Double_t &e,Double_t &f,Double_t &de){ | |
196 | // line segment | |
88cb7938 | 197 | AliITShit *h1; |
198 | Double_t t; | |
58005f18 | 199 | |
3bd79107 | 200 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; |
201 | ||
202 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
203 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
204 | // step | |
3bd79107 | 205 | return kFALSE; |
206 | } // end if StatusEntering() | |
207 | // else stepping | |
3bd79107 | 208 | de = h1->GetIonization(); |
88cb7938 | 209 | h1->GetPositionG0(a,c,e,t); |
3bd79107 | 210 | h1->GetPositionG(b,d,f); |
211 | b = b - a; | |
212 | d = d - c; | |
213 | f = f - e; | |
3bd79107 | 214 | return kTRUE; |
215 | } | |
216 | //___________________________________________________________________________ | |
217 | Bool_t AliITSmodule::LineSegmentL(Int_t hitindex,Double_t &a,Double_t &b, | |
218 | Double_t &c,Double_t &d, | |
219 | Double_t &e,Double_t &f, | |
220 | Double_t &de,Int_t &track){ | |
221 | // line segmente | |
88cb7938 | 222 | AliITShit *h1; |
223 | Double_t t; | |
3bd79107 | 224 | |
225 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
226 | ||
227 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
228 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
229 | // step | |
3bd79107 | 230 | track = h1->GetTrack(); |
231 | return kFALSE; | |
232 | } // end if StatusEntering() | |
233 | // else stepping | |
3bd79107 | 234 | de = h1->GetIonization(); |
88cb7938 | 235 | h1->GetPositionL0(a,c,e,t); |
3bd79107 | 236 | h1->GetPositionL(b,d,f); |
237 | b = b - a; | |
238 | d = d - c; | |
239 | f = f - e; | |
3bd79107 | 240 | track = h1->GetTrack(); |
241 | return kTRUE; | |
242 | } | |
243 | //___________________________________________________________________________ | |
244 | Bool_t AliITSmodule::LineSegmentG(Int_t hitindex,Double_t &a,Double_t &b, | |
245 | Double_t &c,Double_t &d, | |
246 | Double_t &e,Double_t &f, | |
247 | Double_t &de,Int_t &track){ | |
248 | // line segment | |
88cb7938 | 249 | AliITShit *h1; |
250 | Double_t t; | |
3bd79107 | 251 | |
252 | if(hitindex>= fHitsM->GetEntriesFast()) return kFALSE; | |
253 | ||
254 | h1 = (AliITShit *) (fHitsM->At(hitindex)); | |
255 | if(h1->StatusEntering()){ // if track entering volume, get index for next | |
256 | // step | |
3bd79107 | 257 | track = h1->GetTrack(); |
258 | return kFALSE; | |
259 | } // end if StatusEntering() | |
260 | // else stepping | |
3bd79107 | 261 | de = h1->GetIonization(); |
88cb7938 | 262 | h1->GetPositionG0(a,c,e,t); |
3bd79107 | 263 | h1->GetPositionG(b,d,f); |
264 | b = b - a; | |
265 | d = d - c; | |
266 | f = f - e; | |
3bd79107 | 267 | track = h1->GetTrack(); |
268 | return kTRUE; | |
58005f18 | 269 | } |
7e3ded1b | 270 | //______________________________________________________________________ |
271 | Bool_t AliITSmodule::MedianHitG(AliITShit *h1,AliITShit *h2, | |
272 | Float_t &x,Float_t &y,Float_t &z){ | |
273 | // Computes the mean hit location for a set of hits that make up a track | |
274 | // passing through a volume. Returns kFALSE untill the the track leaves | |
275 | // the volume. | |
276 | // median hit | |
7e3ded1b | 277 | Float_t x1l=0.,y1l=0.,z1l=0.; |
278 | Float_t x2l=0.,y2l=0.,z2l=0.; | |
279 | Float_t xMl,yMl=0,zMl; | |
6599f311 | 280 | Double_t l[3], g[3]; |
7e3ded1b | 281 | |
282 | h1->GetPositionG(x1l,y1l,z1l); | |
283 | h2->GetPositionG(x2l,y2l,z2l); | |
284 | ||
6d48704c | 285 | if((y2l*y1l)<0.) { |
7e3ded1b | 286 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; |
287 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
288 | } else { | |
289 | xMl = 0.5*(x1l+x2l); | |
290 | zMl = 0.5*(z1l+z2l); | |
291 | } | |
292 | ||
293 | l[0] = xMl; | |
294 | l[1] = yMl; | |
295 | l[2] = zMl; | |
6599f311 | 296 | AliITSgeomTGeo::LocalToGlobal(h1->GetModule(),l,g); |
7e3ded1b | 297 | x = g[0]; |
298 | y = g[1]; | |
299 | z = g[2]; | |
300 | return kTRUE; | |
301 | } | |
302 | //___________________________________________________________________________ | |
303 | void AliITSmodule::MedianHitG(Int_t index, | |
304 | Float_t hitx1,Float_t hity1,Float_t hitz1, | |
305 | Float_t hitx2,Float_t hity2,Float_t hitz2, | |
306 | Float_t &xMg, Float_t &yMg, Float_t &zMg){ | |
307 | // median hit | |
7e3ded1b | 308 | Float_t x1l,y1l,z1l; |
309 | Float_t x2l,y2l,z2l; | |
310 | Float_t xMl,yMl=0,zMl; | |
6599f311 | 311 | Double_t l[3], g[3]; |
7e3ded1b | 312 | |
313 | g[0] = hitx1; | |
314 | g[1] = hity1; | |
315 | g[2] = hitz1; | |
6599f311 | 316 | AliITSgeomTGeo::GlobalToLocal(index,g,l); |
7e3ded1b | 317 | x1l = l[0]; |
318 | y1l = l[1]; | |
319 | z1l = l[2]; | |
320 | ||
321 | g[0] = hitx2; | |
322 | g[1] = hity2; | |
323 | g[2] = hitz2; | |
6599f311 | 324 | AliITSgeomTGeo::GlobalToLocal(index,g,l); |
7e3ded1b | 325 | x2l = l[0]; |
326 | y2l = l[1]; | |
327 | z2l = l[2]; | |
328 | ||
6d48704c | 329 | if((y2l*y1l)<0.) { |
7e3ded1b | 330 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; |
331 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
332 | } else { | |
333 | xMl = 0.5*(x1l+x2l); | |
334 | zMl = 0.5*(z1l+z2l); | |
335 | } | |
336 | ||
337 | l[0] = xMl; | |
338 | l[1] = yMl; | |
339 | l[2] = zMl; | |
6599f311 | 340 | AliITSgeomTGeo::LocalToGlobal(index,l,g); |
7e3ded1b | 341 | xMg = g[0]; |
342 | yMg = g[1]; | |
343 | zMg = g[2]; | |
344 | } | |
3bd79107 | 345 | //___________________________________________________________________________ |
7e3ded1b | 346 | Bool_t AliITSmodule::MedianHitL( AliITShit *itsHit1, |
3bd79107 | 347 | AliITShit *itsHit2, |
7d62fb64 | 348 | Float_t &xMl, Float_t &yMl, Float_t &zMl) const{ |
3bd79107 | 349 | // median hit |
350 | Float_t x1l,y1l,z1l; | |
351 | Float_t x2l,y2l,z2l; | |
352 | ||
353 | itsHit1->GetPositionL(x1l,y1l,z1l); | |
354 | itsHit2->GetPositionL(x2l,y2l,z2l); | |
58005f18 | 355 | |
3bd79107 | 356 | yMl = 0.0; |
6d48704c | 357 | if((y2l*y1l)<0.) { |
37ffef26 | 358 | xMl = (-y1l / (y2l-y1l))*(x2l-x1l) + x1l; |
359 | zMl = (-y1l / (y2l-y1l))*(z2l-z1l) + z1l; | |
360 | } else { | |
361 | xMl = 0.5*(x1l+x2l); | |
362 | zMl = 0.5*(z1l+z2l); | |
363 | } | |
7e3ded1b | 364 | return kTRUE; |
3bd79107 | 365 | } |
58005f18 | 366 | //___________________________________________________________________________ |
3bd79107 | 367 | void AliITSmodule::MedianHit(Int_t index, |
368 | Float_t xg,Float_t yg,Float_t zg, | |
369 | Int_t status, | |
370 | Float_t &xMg,Float_t &yMg,Float_t &zMg, | |
371 | Int_t &flag){ | |
372 | // median hit | |
373 | static Float_t x1,y1,z1; | |
374 | ||
7e3ded1b | 375 | if ((status&0x0002)!=0){ // entering |
3bd79107 | 376 | x1 = xg; |
377 | y1 = yg; | |
378 | z1 = zg; | |
379 | flag = 1; | |
7e3ded1b | 380 | } else if ((status&0x0004)!=0){ // exiting |
3bd79107 | 381 | MedianHitG(index,x1,y1,z1,xg,yg,zg,xMg,yMg,zMg); |
382 | flag = 0; | |
383 | } // end if | |
7e3ded1b | 384 | else flag = 1; |
58005f18 | 385 | } |
3bd79107 | 386 | //___________________________________________________________________________ |
387 | void AliITSmodule::GetID(Int_t &lay,Int_t &lad,Int_t &det){ | |
388 | // get ID | |
6599f311 | 389 | AliITSgeomTGeo::GetModuleId(fIndex,lay,lad,det); |
390 | return ; | |
3bd79107 | 391 | } |
392 |