]>
Commit | Line | Data |
---|---|---|
4c039060 | 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 | /* | |
17 | $Log$ | |
a8a6107b | 18 | Revision 1.10 2001/01/26 20:01:19 hristov |
19 | Major upgrade of AliRoot code | |
20 | ||
2ab0c725 | 21 | Revision 1.9 2000/10/02 16:32:51 barbera |
22 | Automatic streamer used and forward declarations added | |
23 | ||
339150e6 | 24 | Revision 1.3.4.7 2000/10/02 15:54:49 barbera |
25 | Automatic streamer used and forward declarations added | |
26 | ||
27 | Revision 1.8 2000/09/22 12:35:21 nilsen | |
28 | Traps placed incase it is used without a properly initilized AliITSgeom class. | |
29 | ||
4fc5ed2d | 30 | Revision 1.7 2000/07/10 16:07:18 fca |
31 | Release version of ITS code | |
32 | ||
b2340bbf | 33 | Revision 1.3.4.2 2000/03/04 23:43:57 nilsen |
34 | Fixed up the comments/documentation. | |
35 | ||
36 | Revision 1.3.4.1 2000/01/12 19:03:32 nilsen | |
37 | This is the version of the files after the merging done in December 1999. | |
38 | See the ReadMe110100.txt file for details | |
39 | ||
40 | Revision 1.3 1999/09/29 09:24:20 fca | |
41 | Introduction of the Copyright and cvs Log | |
42 | ||
4c039060 | 43 | */ |
44 | ||
58005f18 | 45 | |
46 | #include <TMath.h> | |
47 | #include <TRandom.h> | |
48 | #include <TVector.h> | |
49 | #include <TGeometry.h> | |
50 | #include <TNode.h> | |
51 | #include <TTUBE.h> | |
4fc5ed2d | 52 | #include "TParticle.h" |
58005f18 | 53 | |
b2340bbf | 54 | #include "AliRun.h" |
58005f18 | 55 | #include "AliITS.h" |
4fc5ed2d | 56 | #include "AliITSgeom.h" |
58005f18 | 57 | #include "AliITShit.h" |
58005f18 | 58 | |
59 | ||
60 | ClassImp(AliITShit) | |
61 | //////////////////////////////////////////////////////////////////////// | |
62 | // Version: 0 | |
63 | // Written by Rene Brun, Federico Carminati, and Roberto Barbera | |
64 | // | |
65 | // Version: 1 | |
66 | // Modified and documented by Bjorn S. Nilsen | |
67 | // July 11 1999 | |
68 | // | |
69 | // AliITShit is the hit class for the ITS. Hits are the information | |
70 | // that comes from a Monte Carlo at each step as a particle mass through | |
71 | // sensitive detector elements as particles are transported through a | |
72 | // detector. | |
73 | // | |
74 | //Begin_Html | |
75 | /* | |
a92b2b7d | 76 | <img src="picts/ITS/AliITShit_Class_Diagram.gif"> |
58005f18 | 77 | </pre> |
78 | <br clear=left> | |
79 | <font size=+2 color=red> | |
80 | <p>This show the relasionships between the ITS hit class and the rest of Aliroot. | |
81 | </font> | |
82 | <pre> | |
83 | */ | |
84 | //End_Html | |
b2340bbf | 85 | //////////////////////////////////////////////////////////////////////// |
86 | // Inline Member functions: | |
87 | // | |
88 | // AliITShit() | |
89 | // The default creator of the AliITShit class. | |
90 | // | |
91 | // ~AliITShit() | |
92 | // The default destructor of the AliITShit class. | |
93 | // | |
94 | // int GetTrack() | |
95 | // See AliHit for a full description. Returns the track number fTrack | |
96 | // for this hit. | |
97 | // | |
98 | // SetTrack(int track) | |
99 | // See AliHit for a full description. Sets the track number fTrack | |
100 | // for this hit. | |
101 | // | |
102 | // Int_t GetTrackStatus() | |
103 | // Returns the value of the track status flag fStatus. This flag | |
104 | // indicates the track status at the time of creating this hit. It is | |
105 | // made up of the following 8 status bits from highest order to lowest | |
106 | // order bits | |
107 | // 0 : IsTrackAlive(): IsTrackStop():IsTrackDisappeared(): | |
108 | // IsTrackOut():IsTrackExiting():IsTrackEntering():IsTrackInside() . | |
109 | // See AliMC for a description of these functions. If the function is | |
110 | // true then the bit is set to one, otherwise it is zero. | |
111 | // | |
112 | // Bool_t StatusInside() | |
113 | // Returns kTRUE if the particle producing this hit is still inside | |
114 | // the present volume. Returns kFalse if this particle will be in another | |
115 | // volume. {bit IsTrackInside is set or not} | |
116 | // | |
117 | // Bool_t StatusEntering() | |
118 | // Returns kTRUE if the particle producing this hit is has just enterd | |
119 | // the present volume. Returns kFalse otherwise. {bit IsTrackEntering is | |
120 | // set or not} | |
121 | // | |
122 | // Bool_t StatusExiting() | |
123 | // Returns kTRUE if the particle producing this hit is will exit | |
124 | // the present volume. Returns kFalse otherwise. {bit IsTrackExiting is set | |
125 | // or not} | |
126 | // | |
127 | // Bool_t StatusOut() | |
128 | // Returns kTRUE if the particle producing this hit is goint exit the | |
129 | // simulation. Returns kFalse otherwise. {bit IsTrackOut is set or not} | |
130 | // | |
131 | // Bool_t StatusDisappeared() | |
132 | // Returns kTRUE if the particle producing this hit is going to "disappear" | |
133 | // for example it has interacted producing some other particles. Returns | |
134 | // kFalse otherwise. {bit IsTrackOut is set or not} | |
135 | // | |
136 | // Bool_t StatusStop() | |
137 | // Returns kTRUE if the particle producing this hit is has dropped below | |
138 | // its energy cut off producing some other particles. Returns kFalse otherwise. | |
139 | // {bit IsTrackOut is set or not} | |
140 | // | |
141 | // Bool_t StatuAlives() | |
142 | // Returns kTRUE if the particle producing this hit is going to continue | |
143 | // to be transported. Returns kFalse otherwise. {bit IsTrackOut is set or not} | |
144 | // | |
145 | // Int_t GetLayer() | |
146 | // Returns the layer number, fLayer, for this hit. | |
147 | // | |
148 | // Int_t GetLadder() | |
149 | // Returns the ladder number, fLadder, for this hit. | |
150 | // | |
151 | // Int_t GetDetector() | |
152 | // Returns the detector number, fDet, for this hit. | |
153 | // | |
154 | // GetDetectorID(Int_t &layer, Int_t &ladder, Int_t &detector) | |
155 | // Returns the layer, ladder, and detector numbers, fLayer fLadder fDet, | |
156 | // in one call. | |
157 | // | |
158 | // Float_t GetIonization() | |
159 | // Returns the energy lost, fDestep, by the particle creating this hit, | |
160 | // in the units defined by the Monte Carlo. | |
161 | // | |
162 | // GetPositionG(Float_t &x, Float_t &y, Float_t &z) | |
163 | // Returns the global position, fX fY fZ, of this hit, in the units | |
164 | // define by the Monte Carlo. | |
165 | // | |
166 | // GetPositionG(Double_t &x, Double_t &y, Double_t &z) | |
167 | // Returns the global position, fX fY fZ, of this hit, in the units | |
168 | // define by the Monte Carlo. | |
169 | // | |
170 | // GetPositionG(Float_t &x, Float_t &y, Float_t &z, Float_t &tof) | |
171 | // Returns the global position and time of flight, fX fY fZ fTof, of | |
172 | // this hit, in the units define by the Monte Carlo. | |
173 | // | |
174 | // GetPositionG(Double_t &x,Double_t &y,Double_t &z,Double_t &tof) | |
175 | // Returns the global position and time of flight, fX fY fZ fTof, of | |
176 | // this hit, in the units define by the Monte Carlo. | |
177 | // | |
178 | // GetPositionL(Double_t &x,Double_t &y,Double_t &z) | |
179 | // Returns the local position, fX fY fZ, of this hit in the coordiante | |
180 | // of this module, in the units define by the Monte Carlo. | |
181 | // | |
182 | // GetPositionG(Double_t &x,Double_t &y,Double_t &z,Double_t &tof) | |
183 | // Returns the local position and time of flight, fX fY fZ fTof, of | |
184 | // this hit in the coordinates of this module, in the units define by the | |
185 | // Monte Carlo. | |
186 | // | |
187 | // Float_t GetXG() | |
188 | // Returns the global x position in the units defined by the Monte Carlo. | |
189 | // | |
190 | // Float_t GetYG() | |
191 | // Returns the global y position in the units defined by the Monte Carlo. | |
192 | // | |
193 | // Float_t GetYG() | |
194 | // Returns the global z position in the units defined by the Monte Carlo. | |
195 | // | |
196 | // Float_t GetTOF() | |
197 | // Returns the time of flight, fTof, of this hit, in the units defined | |
198 | // by the Monte Carlo. | |
199 | // | |
200 | // GetMomentumG(Float_t &px, Float_t &py, Float_t &pz) | |
201 | // Returns the global momentum, fPx fPy fPz, of the particle that made | |
202 | // this hit, in the units define by the Monte Carlo. | |
203 | // | |
204 | // GetMomentumG(Double_t &px,Double_t &py,Double_t &pz) | |
205 | // Returns the global momentum, fPx fPy fPz, of the particle that made | |
206 | // this hit, in the units define by the Monte Carlo. | |
207 | // | |
208 | // GetMomentumL(Double_t &px,Double_t &py,Double_t &pz) | |
209 | // Returns the momentum, fPx fPy fPz in coordinate appropreate for this | |
210 | // specific module, in the units define by the Monte Carlo. | |
211 | // | |
212 | // Float_t GetPXG() | |
213 | // Returns the global X momentum in the units defined by the Monte Carlo. | |
214 | // | |
215 | // Float_t GetPYG() | |
216 | // Returns the global Y momentum in the units defined by the Monte Carlo. | |
217 | // | |
218 | // Float_t GetPZG() | |
219 | // Returns the global Z momentum in the units defined by the Monte Carlo. | |
220 | // | |
221 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 222 | //_____________________________________________________________________________ |
223 | AliITShit::AliITShit(Int_t shunt, Int_t track, Int_t *vol, Float_t *hits): | |
b2340bbf | 224 | AliHit(shunt, track){ |
225 | //////////////////////////////////////////////////////////////////////// | |
226 | // Create ITS hit | |
227 | // The creator of the AliITShit class. The variables shunt and | |
228 | // track are passed to the creator of the AliHit class. See the AliHit | |
229 | // class for a full description. the integer array *vol contains, in order, | |
230 | // fLayer = vol[0], fDet = vol[1], fLadder = vol[2], fStatus = vol[3]. | |
231 | // The array *hits contains, in order, fX = hits[0], fY = hits[1], | |
232 | // fZ = hits[2], fPx = hits[3], fPy = hits[4], fPz = hits[5], | |
233 | // fDestep = hits[6], and fTof = hits[7]. In the units of the Monte Carlo | |
234 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 235 | fLayer = vol[0]; // Layer number |
236 | fLadder = vol[2]; // Ladder number | |
237 | fDet = vol[1]; // Detector number | |
238 | fStatus = vol[3]; // Track status flags | |
239 | fX = hits[0]; // Track X position | |
240 | fY = hits[1]; // Track Y position | |
241 | fZ = hits[2]; // Track Z position | |
242 | fPx = hits[3]; // Track X Momentum | |
243 | fPy = hits[4]; // Track Y Momentum | |
244 | fPz = hits[5]; // Track Z Momentum | |
245 | fDestep = hits[6]; // Track dE/dx for this step | |
246 | fTof = hits[7]; // Track Time of Flight for this step | |
247 | } | |
b2340bbf | 248 | //______________________________________________________________________ |
58005f18 | 249 | void AliITShit::GetPositionL(Float_t &x,Float_t &y,Float_t &z){ |
b2340bbf | 250 | //////////////////////////////////////////////////////////////////////// |
251 | // Returns the position of this hit in the local coordinates of this | |
252 | // module, and in the units of the Monte Carlo. | |
253 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 254 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
255 | Float_t g[3],l[3]; | |
256 | ||
257 | g[0] = fX; | |
258 | g[1] = fY; | |
259 | g[2] = fZ; | |
4fc5ed2d | 260 | if(gm) { |
261 | gm->GtoL(fLayer,fLadder,fDet,g,l); | |
262 | x = l[0]; | |
263 | y = l[1]; | |
264 | z = l[2]; | |
265 | } else { | |
266 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
267 | // AliITSv7 - SDD case | |
268 | x=fX; | |
269 | y=fZ; | |
270 | z=fY; | |
271 | } | |
58005f18 | 272 | return; |
273 | } | |
b2340bbf | 274 | //______________________________________________________________________ |
58005f18 | 275 | void AliITShit::GetPositionL(Float_t &x,Float_t &y,Float_t &z,Float_t &tof){ |
b2340bbf | 276 | //////////////////////////////////////////////////////////////////////// |
277 | // Returns the position and time of flight of this hit in the local | |
278 | // coordinates of this module, and in the units of the Monte Carlo. | |
279 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 280 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
281 | Float_t g[3],l[3]; | |
282 | ||
283 | g[0] = fX; | |
284 | g[1] = fY; | |
285 | g[2] = fZ; | |
4fc5ed2d | 286 | if(gm) { |
287 | gm->GtoL(fLayer,fLadder,fDet,g,l); | |
288 | x = l[0]; | |
289 | y = l[1]; | |
290 | z = l[2]; | |
291 | } else { | |
292 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
293 | // AliITSv7 - SDD case | |
294 | x=fX; | |
295 | y=fZ; | |
296 | z=fY; | |
297 | } | |
58005f18 | 298 | tof = fTof; |
299 | return; | |
300 | } | |
b2340bbf | 301 | //______________________________________________________________________ |
58005f18 | 302 | Float_t AliITShit::GetXL(){ |
b2340bbf | 303 | //////////////////////////////////////////////////////////////////////// |
304 | // Returns the x position of this hit in the local coordinates of this | |
305 | // module, and in the units of the Monte Carlo. | |
306 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 307 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
308 | Float_t g[3],l[3]; | |
309 | ||
310 | g[0] = fX; | |
311 | g[1] = fY; | |
312 | g[2] = fZ; | |
4fc5ed2d | 313 | if(gm) { |
314 | gm->GtoL(fLayer,fLadder,fDet,g,l); | |
315 | return l[0]; | |
316 | } else { | |
317 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
318 | return fX; | |
319 | } | |
58005f18 | 320 | } |
b2340bbf | 321 | //______________________________________________________________________ |
58005f18 | 322 | Float_t AliITShit::GetYL(){ |
b2340bbf | 323 | //////////////////////////////////////////////////////////////////////// |
324 | // Returns the y position of this hit in the local coordinates of this | |
325 | // module, and in the units of the Monte Carlo. | |
326 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 327 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
328 | Float_t g[3],l[3]; | |
329 | ||
330 | g[0] = fX; | |
331 | g[1] = fY; | |
332 | g[2] = fZ; | |
4fc5ed2d | 333 | if (gm) { |
334 | gm->GtoL(fLayer,fLadder,fDet,g,l); | |
335 | return l[1]; | |
336 | } else { | |
337 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
338 | return fZ; | |
339 | } | |
58005f18 | 340 | } |
b2340bbf | 341 | //______________________________________________________________________ |
58005f18 | 342 | Float_t AliITShit::GetZL(){ |
b2340bbf | 343 | //////////////////////////////////////////////////////////////////////// |
344 | // Returns the z position of this hit in the local coordinates of this | |
345 | // module, and in the units of the Monte Carlo. | |
346 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 347 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
348 | Float_t g[3],l[3]; | |
349 | ||
350 | g[0] = fX; | |
351 | g[1] = fY; | |
352 | g[2] = fZ; | |
4fc5ed2d | 353 | if(gm) { |
354 | gm->GtoL(fLayer,fLadder,fDet,g,l); | |
355 | return l[2]; | |
356 | } else { | |
357 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
358 | return fY; | |
359 | } | |
58005f18 | 360 | } |
b2340bbf | 361 | //______________________________________________________________________ |
58005f18 | 362 | void AliITShit::GetMomentumL(Float_t &px,Float_t &py,Float_t &pz){ |
b2340bbf | 363 | //////////////////////////////////////////////////////////////////////// |
364 | // Returns the momentum of this hit in the local coordinates of this | |
365 | // module, and in the units of the Monte Carlo. | |
366 | //////////////////////////////////////////////////////////////////////// | |
58005f18 | 367 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); |
368 | Float_t g[3],l[3]; | |
369 | ||
370 | g[0] = fPx; | |
371 | g[1] = fPy; | |
372 | g[2] = fPz; | |
4fc5ed2d | 373 | if (gm) { |
374 | gm->GtoLMomentum(fLayer,fLadder,fDet,g,l); | |
375 | px = l[0]; | |
376 | py = l[1]; | |
377 | pz = l[2]; | |
378 | } else { | |
379 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
380 | px=fPx; | |
381 | py=fPy; | |
382 | pz=fPz; | |
383 | } | |
58005f18 | 384 | return; |
385 | } | |
b2340bbf | 386 | //______________________________________________________________________ |
387 | Float_t AliITShit::GetPXL(){ | |
388 | //////////////////////////////////////////////////////////////////////// | |
389 | // Returns the X momentum of this hit in the local coordinates of this | |
390 | // module, and in the units of the Monte Carlo. | |
391 | //////////////////////////////////////////////////////////////////////// | |
392 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); | |
393 | Float_t g[3],l[3]; | |
394 | ||
395 | g[0] = fPx; | |
396 | g[1] = fPy; | |
397 | g[2] = fPz; | |
4fc5ed2d | 398 | if (gm) { |
399 | gm->GtoLMomentum(fLayer,fLadder,fDet,g,l); | |
400 | return l[0]; | |
401 | } else { | |
402 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
403 | return fPx; | |
404 | } | |
b2340bbf | 405 | } |
406 | //______________________________________________________________________ | |
407 | Float_t AliITShit::GetPYL(){ | |
408 | //////////////////////////////////////////////////////////////////////// | |
409 | // Returns the Y momentum of this hit in the local coordinates of this | |
410 | // module, and in the units of the Monte Carlo. | |
411 | //////////////////////////////////////////////////////////////////////// | |
412 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); | |
413 | Float_t g[3],l[3]; | |
414 | ||
415 | g[0] = fPx; | |
416 | g[1] = fPy; | |
417 | g[2] = fPz; | |
4fc5ed2d | 418 | if (gm) { |
419 | gm->GtoLMomentum(fLayer,fLadder,fDet,g,l); | |
420 | return l[1]; | |
421 | } else { | |
422 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
423 | return fPy; | |
424 | } | |
425 | ||
b2340bbf | 426 | } |
427 | //______________________________________________________________________ | |
428 | Float_t AliITShit::GetPZL(){ | |
429 | //////////////////////////////////////////////////////////////////////// | |
430 | // Returns the Z momentum of this hit in the local coordinates of this | |
431 | // module, and in the units of the Monte Carlo. | |
432 | //////////////////////////////////////////////////////////////////////// | |
433 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); | |
434 | Float_t g[3],l[3]; | |
435 | ||
436 | g[0] = fPx; | |
437 | g[1] = fPy; | |
438 | g[2] = fPz; | |
4fc5ed2d | 439 | if (gm) { |
440 | gm->GtoLMomentum(fLayer,fLadder,fDet,g,l); | |
441 | return l[2]; | |
442 | } else { | |
443 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
444 | return fPz; | |
445 | } | |
446 | ||
b2340bbf | 447 | } |
448 | //___________________________________________________________________________; | |
449 | Int_t AliITShit::GetModule(){ | |
450 | //////////////////////////////////////////////////////////////////////// | |
451 | // Returns the module index number of the module where this hit was in. | |
452 | //////////////////////////////////////////////////////////////////////// | |
453 | AliITSgeom *gm = ((AliITS*)gAlice->GetDetector("ITS"))->GetITSgeom(); | |
454 | ||
4fc5ed2d | 455 | if (gm) return gm->GetModuleIndex(fLayer,fLadder,fDet); |
456 | else { | |
457 | Error("AliITShit","NULL pointer to the geometry! return smth else",gm); | |
458 | return 0; | |
459 | } | |
b2340bbf | 460 | } |
461 | //______________________________________________________________________ | |
462 | TParticle * AliITShit::GetParticle(){ | |
463 | //////////////////////////////////////////////////////////////////////// | |
464 | // Returns the pointer to the TParticle for the particle that created | |
465 | // this hit. From the TParticle all kinds of information about this | |
466 | // particle can be found. See the TParticle class. | |
467 | //////////////////////////////////////////////////////////////////////// | |
2ab0c725 | 468 | return gAlice->Particle(GetTrack()); |
b2340bbf | 469 | } |