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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 | $Log$ | |
36583d28 | 18 | Revision 1.18 2001/08/24 21:06:37 nilsen |
19 | Added more documentation, fixed up some coding violations, and some | |
20 | forward declorations. | |
21 | ||
85f1e34a | 22 | Revision 1.17 2001/07/27 08:06:48 hristov |
23 | Use global gRandom generator (M.Ivanov) | |
24 | ||
4c57765b | 25 | Revision 1.16 2001/02/08 23:57:00 nilsen |
26 | Fixed up some informational printouts. | |
27 | ||
331329a2 | 28 | Revision 1.15 2001/02/07 20:23:21 nilsen |
29 | Fixed bug with HP and no unget in iostream.h. Now using putback instead. | |
30 | Other changes and fixes also included. | |
31 | ||
5c9c741e | 32 | Revision 1.14 2001/02/03 00:00:29 nilsen |
33 | New version of AliITSgeom and related files. Now uses automatic streamers, | |
34 | set up for new formatted .det file which includes detector information. | |
35 | Additional smaller modifications are still to come. | |
36 | ||
89855786 | 37 | Revision 1.11 2000/10/02 16:32:35 barbera |
38 | Forward declaration added | |
39 | ||
92c19c36 | 40 | Revision 1.4.4.15 2000/10/02 15:52:05 barbera |
41 | Forward declaration added | |
42 | ||
43 | Revision 1.10 2000/09/05 14:25:50 nilsen | |
44 | Made fixes for HP compiler. All function parameter default values placed | |
85f1e34a | 45 | in .h file. Fixed the usual problem with HP compilers and the "for(Int_t i..." |
92c19c36 | 46 | business. Replaced casting (Double_t [3][3]) to (Double_t (*)[3]) for HP. |
47 | Lastly removed all "const" before function parameters which were 2 dim. arrays, | |
48 | because on HP root generates some strange code (?). Thanks Peter for the | |
49 | changes. | |
50 | ||
d962cab4 | 51 | Revision 1.9 2000/08/29 20:19:03 nilsen |
85f1e34a | 52 | Removed dependency on structure AliITSeomS and replaced it with class |
d962cab4 | 53 | AliITSgeomMatrix. Added many new functions with many new arguments. Most |
54 | in the form of in line functions for speed. | |
55 | ||
269f57ed | 56 | Revision 1.4.4.6 2000/06/04 16:33:32 Nilsen |
57 | A restructured AliITSgeom class. Now used AliITSgeomMatrix. | |
58 | ||
59 | Revision 1.4.4.5 2000/03/04 23:42:39 Nilsen | |
593e9459 | 60 | Updated the comments/documentations and improved the maintainability of the |
61 | code. | |
62 | ||
269f57ed | 63 | Revision 1.4.4.4 2000/03/02 21:27:07 Nilsen |
593e9459 | 64 | Added two functions, SetByAngles and SetTrans. |
65 | ||
269f57ed | 66 | Revision 1.4.4.3 2000/01/23 03:09:10 Nilsen |
593e9459 | 67 | // fixed compiler warnings for new function LtLErrorMatrix(...) |
68 | ||
269f57ed | 69 | Revision 1.4.4.2 2000/01/19 23:18:20 Nilsen |
593e9459 | 70 | Added transformations of Error matrix to AliITSgeom and fixed some typos |
71 | in AliITS.h and AliITShitIndex.h | |
72 | ||
269f57ed | 73 | Revision 1.4.4.1 2000/01/12 19:03:32 Nilsen |
593e9459 | 74 | This is the version of the files after the merging done in December 1999. |
75 | See the ReadMe110100.txt file for details | |
76 | ||
77 | Revision 1.4 1999/10/15 07:03:20 fca | |
78 | Fixed bug in GetModuleId(Int_t index,Int_t &lay,Int_t &lad, Int_t &det) and | |
79 | a typo in the creator. aliroot need to be rerun to get a fixed geometry. | |
80 | ||
aa6248e2 | 81 | Revision 1.3 1999/10/04 15:20:12 fca |
82 | Correct syntax accepted by g++ but not standard for static members, remove minor warnings | |
83 | ||
ad0e60d9 | 84 | Revision 1.2 1999/09/29 09:24:20 fca |
85 | Introduction of the Copyright and cvs Log | |
86 | ||
4c039060 | 87 | */ |
88 | ||
58005f18 | 89 | /////////////////////////////////////////////////////////////////////// |
593e9459 | 90 | // ITS geometry manipulation routines. // |
58005f18 | 91 | // Created April 15 1999. // |
92 | // version: 0.0.0 // | |
93 | // By: Bjorn S. Nilsen // | |
94 | // version: 0.0.1 // | |
95 | // Updated May 27 1999. // | |
593e9459 | 96 | // Added Cylindrical random and global based changes. // |
58005f18 | 97 | // Added function PrintComparison. // |
98 | /////////////////////////////////////////////////////////////////////// | |
593e9459 | 99 | |
100 | ||
101 | //////////////////////////////////////////////////////////////////////// | |
593e9459 | 102 | // The local coordinate system by, default, is show in the following |
103 | // figures. Also shown are the ladder numbering scheme. | |
104 | //Begin_Html | |
105 | /* | |
269f57ed | 106 | <img src="picts/ITS/AliITSgeomMatrix_L1.gif"> |
107 | </pre> | |
108 | <br clear=left> | |
109 | <font size=+2 color=blue> | |
110 | <p>This shows the relative geometry differences between the ALICE Global | |
111 | coordinate system and the local detector coordinate system. | |
112 | </font> | |
113 | <pre> | |
114 | ||
115 | <pre> | |
593e9459 | 116 | <img src="picts/ITS/its1+2_convention_front_5.gif"> |
117 | </pre> | |
118 | <br clear=left> | |
119 | <font size=+2 color=blue> | |
120 | <p>This shows the front view of the SPDs and the orientation of the local | |
121 | pixel coordinate system. Note that the inner pixel layer has its y coordinate | |
122 | in the opposite direction from all of the other layers. | |
123 | </font> | |
124 | <pre> | |
125 | ||
126 | <pre> | |
127 | <img src="picts/ITS/its3+4_convention_front_5.gif"> | |
128 | </pre> | |
129 | <br clear=left> | |
130 | <font size=+2 color=blue> | |
131 | <p>This shows the front view of the SDDs and the orientation of the local | |
132 | pixel coordinate system. | |
133 | </font> | |
134 | <pre> | |
135 | ||
136 | <pre> | |
137 | <img src="picts/ITS/its5+6_convention_front_5.gif"> | |
138 | </pre> | |
139 | <br clear=left> | |
140 | <font size=+2 color=blue> | |
141 | <p>This shows the front view of the SSDs and the orientation of the local | |
142 | pixel coordinate system. | |
143 | </font> | |
144 | <pre> | |
145 | */ | |
146 | //End_Html | |
269f57ed | 147 | // |
593e9459 | 148 | //////////////////////////////////////////////////////////////////////// |
149 | ||
150 | //////////////////////////////////////////////////////////////////////// | |
151 | // | |
152 | // version: 0 | |
153 | // Written by Bjorn S. Nilsen | |
154 | // | |
155 | // Data Members: | |
156 | // | |
157 | // Int_t fNlayers | |
158 | // The number of ITS layers for this geometry. By default this | |
159 | // is 6, but can be modified by the creator function if there are | |
160 | // more layers defined. | |
161 | // | |
162 | // Int_t *fNlad | |
163 | // A pointer to an array fNlayers long containing the number of | |
164 | // ladders for each layer. This array is typically created and filled | |
165 | // by the AliITSgeom creator function. | |
166 | // | |
167 | // Int_t *fNdet | |
168 | // A pointer to an array fNlayers long containing the number of | |
169 | // active detector volumes for each ladder. This array is typically | |
170 | // created and filled by the AliITSgeom creator function. | |
171 | // | |
269f57ed | 172 | // AliITSgeomMatrix *fGm |
173 | // A pointer to an array of AliITSgeomMatrix classes. One element | |
174 | // per module (detector) in the ITS. AliITSgeomMatrix basicly contains | |
175 | // all of the necessary information about the detector and it's coordinate | |
176 | // transformations. | |
593e9459 | 177 | // |
178 | // TObjArray *fShape | |
179 | // A pointer to an array of TObjects containing the detailed shape | |
180 | // information for each type of detector used in the ITS. For example | |
181 | // I have created AliITSgeomSPD, AliITSgeomSDD, and AliITSgeomSSD as | |
182 | // example structures, derived from TObjects, to hold the detector | |
183 | // information. I would recommend that one element in each of these | |
184 | // structures, that which describes the shape of the active volume, | |
185 | // be one of the ROOT classes derived from TShape. In this way it would | |
186 | // be easy to have the display program display the correct active | |
187 | // ITS volumes. See the example classes AliITSgeomSPD, AliITSgeomSDD, | |
188 | // and AliITSgeomSSD for a more detailed example. | |
593e9459 | 189 | //////////////////////////////////////////////////////////////////////// |
58005f18 | 190 | #include <iostream.h> |
269f57ed | 191 | #include <fstream.h> |
58005f18 | 192 | #include <iomanip.h> |
8253cd9a | 193 | #include <stdlib.h> |
58005f18 | 194 | #include <stdio.h> |
269f57ed | 195 | #include <string.h> |
196 | #include <ctype.h> | |
8253cd9a | 197 | |
198 | #include <TSystem.h> | |
269f57ed | 199 | #include <TRandom.h> |
e8189707 | 200 | |
58005f18 | 201 | #include "AliITSgeom.h" |
269f57ed | 202 | #include "AliITSgeomSPD.h" |
203 | #include "AliITSgeomSDD.h" | |
204 | #include "AliITSgeomSSD.h" | |
58005f18 | 205 | |
206 | ClassImp(AliITSgeom) | |
207 | ||
85f1e34a | 208 | //______________________________________________________________________ |
58005f18 | 209 | AliITSgeom::AliITSgeom(){ |
85f1e34a | 210 | // The default constructor for the AliITSgeom class. It, by default, |
211 | // sets fNlayers to zero and zeros all pointers. | |
212 | // Do not allocate anything zero everything. | |
213 | ||
8253cd9a | 214 | fTrans = 0; // standard GEANT global/local coordinate system. |
215 | fNlayers = 0; | |
216 | fNlad = 0; | |
217 | fNdet = 0; | |
218 | fGm = 0; | |
219 | fShape = 0; | |
220 | strcpy(fVersion,"test"); | |
221 | return; | |
222 | } | |
85f1e34a | 223 | //______________________________________________________________________ |
8253cd9a | 224 | AliITSgeom::AliITSgeom(Int_t itype,Int_t nlayers,Int_t *nlads,Int_t *ndets, |
225 | Int_t mods){ | |
85f1e34a | 226 | // A simple constructor to set basic geometry class variables |
227 | // Inputs: | |
228 | // Int_t itype the type of transformation kept. | |
229 | // bit 0 => Standard GEANT | |
230 | // bit 1 => ITS tracking | |
231 | // bit 2 => A change in the coordinate system has been made. | |
232 | // others are still to be defined as needed. | |
233 | // Int_t nlayers The number of ITS layers also set the size of the arrays | |
234 | // Int_t *nlads an array of the number of ladders for each layer. This | |
235 | // array must be nlayers long. | |
236 | // Int_t *ndets an array of the number of detectors per ladder for each | |
237 | // layer. This array must be nlayers long. | |
238 | // Int_t mods The number of modules. Typicaly the sum of all the | |
239 | // detectors on every layer and ladder. | |
240 | // Outputs: | |
241 | // none | |
8253cd9a | 242 | Int_t i; |
243 | ||
244 | fTrans = itype; | |
245 | fNlayers = nlayers; | |
246 | fNlad = new Int_t[nlayers]; | |
247 | fNdet = new Int_t[nlayers]; | |
248 | for(i=0;i<nlayers;i++){fNlad[i] = nlads[i];fNdet[i] = ndets[i];} | |
249 | fNmodules = mods; | |
250 | fGm = new TObjArray(mods,0); | |
5c9c741e | 251 | fShape = new TObjArray(5); // default value |
252 | for(i=0;i<5;i++) fShape->AddAt(0,i); | |
8253cd9a | 253 | strcpy(fVersion,"test"); |
254 | return; | |
58005f18 | 255 | } |
8253cd9a | 256 | //______________________________________________________________________ |
257 | void AliITSgeom::CreatMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det, | |
85f1e34a | 258 | AliITSDetector idet,const Double_t tran[3], |
259 | const Double_t rot[10]){ | |
260 | // Given the translation vector tran[3] and the rotation matrix rot[1], | |
261 | // this function creates and adds to the TObject Array fGm the | |
262 | // AliITSgeomMatrix object. | |
263 | // Inputs are: | |
264 | // Int_t mod The module number. The location in TObjArray | |
265 | // Int_t lay The layer where this module is | |
266 | // Int_t lad On which ladder this module is | |
267 | // Int_t det Which detector on this ladder this module is | |
268 | // AliITSDetector idet The type of detector see AliITSgeom.h | |
269 | // Double_t tran[3] The translation vector | |
270 | // Double_t rot[10] The rotation matrix. | |
271 | // Outputs are: | |
272 | // none | |
273 | // The rot[10] matrix is set up like: | |
274 | /* / rot[0] rot[1] rot[2] \ | |
275 | // | rot[3] rot[4] rot[5] | | |
276 | // \ rot[6] rot[7] rot[8] / if(rot[9]!=0) then the Identity matrix | |
277 | // is used regardless of the values in rot[0]-rot[8]. | |
278 | */ | |
8253cd9a | 279 | Int_t id[3]; |
280 | Double_t r[3][3] = {{1.0,0.0,0.0},{0.0,1.0,0.0},{0.0,0.0,1.0}}; | |
58005f18 | 281 | |
8253cd9a | 282 | if(fGm->At(mod)!=0) delete fGm->At(mod); |
283 | id[0] = lay; id[1] = lad; id[2] = det; | |
284 | if(rot[9]!=0.0) { // null rotation | |
285 | r[0][0] = rot[0]; r[0][1] = rot[1]; r[0][2] = rot[2]; | |
286 | r[1][0] = rot[3]; r[1][1] = rot[4]; r[1][2] = rot[5]; | |
287 | r[2][0] = rot[6]; r[2][1] = rot[7]; r[2][2] = rot[8]; | |
288 | } // end if | |
289 | fGm->AddAt(new AliITSgeomMatrix(idet,id,r,tran),mod); | |
290 | } | |
85f1e34a | 291 | //______________________________________________________________________ |
58005f18 | 292 | AliITSgeom::~AliITSgeom(){ |
85f1e34a | 293 | // The destructor for the AliITSgeom class. If the arrays fNlad, |
294 | // fNdet, or fGm have had memory allocated to them, there pointer values | |
295 | // are non zero, then this memory space is freed and they are set | |
296 | // to zero. In addition, fNlayers is set to zero. The destruction of | |
297 | // TObjArray fShape is, by default, handled by the TObjArray destructor. | |
298 | ||
085bb6ed | 299 | if(fGm!=0){ |
36583d28 | 300 | //for(Int_t i=0;i<fNlayers;i++) delete fGm->At(i); |
301 | fGm->Delete(); | |
8253cd9a | 302 | delete fGm; |
085bb6ed | 303 | } // end if fGm!=0 |
58005f18 | 304 | if(fNlad!=0) delete[] fNlad; |
305 | if(fNdet!=0) delete[] fNdet; | |
306 | fNlayers = 0; | |
307 | fNlad = 0; | |
308 | fNdet = 0; | |
269f57ed | 309 | fGm = 0; |
58005f18 | 310 | return; |
311 | } | |
269f57ed | 312 | //______________________________________________________________________ |
313 | void AliITSgeom::ReadNewFile(const char *filename){ | |
85f1e34a | 314 | // It is generaly preferred to define the geometry in AliITSgeom |
315 | // directly from the GEANT geometry, see AliITSvPPRasymm.cxx for | |
316 | // and example. Under some circumstances this may not be possible. | |
317 | // This function will read in a formatted file for all of the | |
318 | // information needed to define the geometry in AliITSgeom. | |
319 | // Unlike the older file format, this file may contain comments | |
320 | // and the order of the data does not need to be completely | |
321 | // respected. A file can be created using the function WriteNewFile | |
322 | // defined below. | |
323 | // Inputs are: | |
324 | // const char *filename The file name of the file to be read in. | |
325 | // Outputs are: | |
326 | // none | |
8253cd9a | 327 | Int_t ncmd=9; |
5c9c741e | 328 | const char *cmda[]={"Version" ,"fTrans" ,"fNmodules", |
329 | "fNlayers" ,"fNladers","fNdetectors", | |
330 | "fNDetectorTypes","fShape" ,"Matrix"}; | |
8253cd9a | 331 | Int_t i,j,lNdetTypes,ldet; |
332 | char cmd[20],c; | |
333 | AliITSgeomSPD *spd; | |
334 | AliITSgeomSDD *sdd; | |
335 | AliITSgeomSSD *ssd; | |
336 | AliITSgeomMatrix *m; | |
337 | ifstream *fp; | |
338 | char *filtmp; | |
339 | ||
340 | filtmp = gSystem->ExpandPathName(filename); | |
5c9c741e | 341 | cout << "AliITSgeom, Reading New .det file " << filtmp << endl; |
8253cd9a | 342 | fp = new ifstream(filtmp,ios::in); // open file to write |
343 | while(fp->get(c)!=NULL){ // for ever loop | |
344 | if(c==' ') continue; // remove blanks | |
345 | if(c=='\n') continue; | |
346 | if(c=='#' || c=='!'){for(;fp->get(c)!=NULL,c!='\n';); continue;} | |
347 | if(c=='/'){ | |
348 | fp->get(c);{ | |
349 | if(c=='/'){for(;fp->get(c)!=NULL,c!='\n';);continue;} | |
350 | if(c=='*'){ | |
351 | NotYet: | |
352 | for(;fp->get(c)!=NULL,c!='*';); | |
353 | fp->get(c);{ | |
354 | if(c=='/') continue; | |
355 | goto NotYet; | |
356 | } // | |
357 | } // end if c=='*' | |
358 | } // end if second / | |
359 | } // end if first / | |
5c9c741e | 360 | fp->putback(c); |
8253cd9a | 361 | *fp >> cmd; |
362 | for(i=0;i<ncmd;i++) if(strcmp(cmd,cmda[i])==0) break; | |
363 | switch (i){ | |
364 | case 0: // Version | |
365 | *fp >> fVersion; | |
366 | break; | |
367 | case 1: // fTrans | |
368 | *fp >> fTrans; | |
369 | break; | |
370 | case 2: // fNModules | |
371 | *fp >> fNmodules; | |
372 | if(fGm!=0){ | |
373 | for(j=0;j<fGm->GetEntriesFast();j++) delete fGm->At(j); | |
374 | delete fGm; | |
375 | } // end if | |
376 | fGm = new TObjArray(fNmodules,0); | |
377 | break; | |
378 | case 3: // fNlayers | |
379 | *fp >> fNlayers; | |
380 | if(fNlad!=0) delete fNlad; | |
381 | if(fNdet!=0) delete fNdet; | |
382 | fNlad = new Int_t[fNlayers]; | |
383 | fNdet = new Int_t[fNlayers]; | |
384 | break; | |
385 | case 4: // fNladers | |
386 | for(j=0;j<fNlayers;j++) *fp >> fNlad[j]; | |
387 | break; | |
388 | case 5: // fNdetectors | |
389 | for(j=0;j<fNlayers;j++) *fp >> fNdet[j]; | |
390 | break; | |
391 | case 6: // fNDetectorTypes | |
392 | *fp >> lNdetTypes; | |
393 | if(fShape!=0){ | |
394 | for(j=0;j<fShape->GetEntriesFast();j++) delete fShape->At(j); | |
395 | delete fShape; | |
396 | } // end if | |
397 | fShape = new TObjArray(lNdetTypes,0); | |
398 | break; | |
399 | case 7: // fShape | |
400 | *fp >> ldet; | |
5c9c741e | 401 | if(fShape==0) fShape = new TObjArray(5,0); |
8253cd9a | 402 | switch (ldet){ |
403 | case kSPD : | |
404 | ReSetShape(ldet,(TObject*) new AliITSgeomSPD()); | |
405 | spd = (AliITSgeomSPD*) (fShape->At(ldet)); | |
406 | *fp >> *spd; | |
407 | spd = 0; | |
408 | break; | |
409 | case kSDD : | |
410 | ReSetShape(ldet,(TObject*) new AliITSgeomSDD()); | |
411 | sdd = (AliITSgeomSDD*) (fShape->At(ldet)); | |
412 | *fp >> *sdd; | |
413 | sdd = 0; | |
414 | break; | |
415 | case kSSD : case kSSDp : | |
416 | ReSetShape(ldet,(TObject*) new AliITSgeomSSD()); | |
417 | ssd = (AliITSgeomSSD*) (fShape->At(ldet)); | |
418 | *fp >> *ssd; | |
419 | ssd = 0; | |
420 | break; | |
421 | default: | |
331329a2 | 422 | Error("ReadNewFile","Unknown fShape type number=%d c=%c",ldet,c); |
8253cd9a | 423 | for(;fp->get(c)==NULL,c!='\n';); // skip to end of line. |
424 | break; | |
425 | } // end switch | |
426 | break; | |
427 | case 8: // Matrix | |
428 | *fp >> ldet; | |
429 | if(fGm==0) fGm = new TObjArray(2270,0); | |
430 | if(fGm->At(ldet)!=0) delete (fGm->At(ldet)); | |
431 | fGm->AddAt((TObject*)new AliITSgeomMatrix(),ldet); | |
432 | m = (AliITSgeomMatrix*) fGm->At(ldet); | |
433 | *fp >> *m; | |
434 | m = 0; | |
435 | break; | |
436 | default: | |
331329a2 | 437 | Error("ReadNewFile","Data line i=%d c=%c",i,c); |
8253cd9a | 438 | for(;fp->get(c)==NULL,c!='\n';); // skip this line |
439 | break; | |
440 | } // end switch i | |
441 | } // end while | |
442 | delete fp; | |
443 | ||
444 | return; | |
445 | } | |
446 | //______________________________________________________________________ | |
447 | void AliITSgeom::WriteNewFile(const char *filename){ | |
85f1e34a | 448 | // Writes AliITSgeom, AliITSgeomMatrix, and the defined AliITSgeomS*D |
449 | // classes to a file in a format that is more readable and commendable. | |
450 | // Inputs are: | |
451 | // const char *filename The file name of the file to be write to. | |
452 | // Outputs are: | |
453 | // none | |
8253cd9a | 454 | ofstream *fp; |
455 | Int_t i; | |
456 | char *filtmp; | |
457 | ||
458 | filtmp = gSystem->ExpandPathName(filename); | |
5c9c741e | 459 | cout << "AliITSgeom, Writing New .det file " << filtmp << endl; |
8253cd9a | 460 | fp = new ofstream(filtmp,ios::out); // open file to write |
461 | *fp << "//Comment lines begin with two //, one #, or one !" << endl; | |
462 | *fp << "#Blank lines are skipped including /* and */ sections." << endl; | |
463 | *fp << "!and, in principle the order of the lines is not important" <<endl; | |
464 | *fp << "/* In AliITSgeom.h are defined an enumerated type called" << endl; | |
465 | *fp << " AliITSDetectors These are kSPD=" << (Int_t) kSPD ; | |
466 | *fp << ", kSDD=" << (Int_t) kSDD << ", kSSD=" << (Int_t) kSSD; | |
5c9c741e | 467 | *fp << ", kSSDp=" << (Int_t) kSSDp << ", and kSDDp=" << (Int_t) kSDDp; |
468 | *fp << "*/" << endl; | |
85f1e34a | 469 | *fp << "Version " << fVersion << endl;//This should be consistent with the |
8253cd9a | 470 | // geometry version. |
471 | *fp << "fTrans " << fTrans << endl; | |
472 | *fp << "fNmodules " << fNmodules << endl; | |
473 | *fp << "fNlayers " << fNlayers << endl; | |
474 | *fp << "fNladers "; | |
475 | for(i=0;i<fNlayers;i++) *fp << fNlad[i] << " "; | |
476 | *fp << endl; | |
477 | *fp << "fNdetectors "; | |
478 | for(i=0;i<fNlayers;i++) *fp << fNdet[i] << " "; | |
479 | *fp << endl; | |
480 | *fp << "fNDetectorTypes " << fShape->GetEntriesFast() << endl; | |
481 | for(i=0;i<fShape->GetEntriesFast();i++){ | |
482 | if(!IsShapeDefined(i)) continue; // only print out used shapes. | |
483 | switch (i){ | |
484 | case kSPD : | |
485 | *fp << "fShape " << (Int_t) kSPD << " "; | |
486 | *fp << *((AliITSgeomSPD*)(fShape->At(i))); | |
487 | break; | |
488 | case kSDD : | |
489 | *fp << "fShape " << (Int_t) kSDD << " "; | |
490 | *fp << *((AliITSgeomSDD*)(fShape->At(i))); | |
491 | break; | |
492 | case kSSD : case kSSDp : | |
493 | *fp << "fShape " << i << " "; | |
494 | *fp << *((AliITSgeomSSD*)(fShape->At(i))); | |
495 | break; | |
496 | default: | |
497 | Error("AliITSgeom::WriteNewFile","Unknown Shape value"); | |
498 | } // end switch (i) | |
499 | } // end for i | |
500 | for(i=0;i<fNmodules;i++){ | |
501 | *fp << "Matrix " << i << " "; | |
502 | *fp << *GetGeomMatrix(i); | |
503 | } // end for i | |
504 | *fp << "//End of File" << endl;; | |
505 | ||
506 | delete fp; | |
269f57ed | 507 | return; |
508 | } | |
85f1e34a | 509 | //______________________________________________________________________ |
58005f18 | 510 | AliITSgeom::AliITSgeom(const char *filename){ |
85f1e34a | 511 | // The constructor for the AliITSgeom class. All of the data to fill |
512 | // this structure is read in from the file given my the input filename. | |
513 | // Inputs are: | |
514 | // const char *filename The file name of the file to be read in. | |
515 | // Outputs are: | |
516 | // none | |
517 | FILE *pf=0; | |
518 | Int_t i,lm=0,id[3]; | |
519 | Int_t l,a,d; | |
520 | Float_t x,y,z,o,p,q,r,s,t; | |
521 | Double_t rot6[6],tran[3]; | |
522 | char buf[200],*buff=0; // input character buffer; | |
523 | char *filtmp; | |
58005f18 | 524 | |
85f1e34a | 525 | filtmp = gSystem->ExpandPathName(filename); |
526 | cout << "AliITSgeom reading old .det file " << filtmp << endl; | |
527 | fShape = 0; | |
528 | strcpy(fVersion,"DefauleV5"); | |
529 | pf = fopen(filtmp,"r"); | |
530 | ||
531 | fNlayers = 6; // set default number of ladders | |
532 | TryAgain: | |
533 | fNlad = new Int_t[fNlayers]; | |
534 | fNdet = new Int_t[fNlayers]; | |
535 | fNmodules = 0; | |
536 | // find the number of ladders and detectors in this geometry. | |
537 | for(i=0;i<fNlayers;i++){fNlad[i]=fNdet[i]=0;} // zero out arrays | |
538 | while(fgets(buf,200,pf)!=NULL){ // for ever loop | |
539 | for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces. | |
540 | buff = &(buf[i]); | |
541 | break; | |
542 | } // end for i | |
543 | // remove blank lines and comments. | |
544 | if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'|| | |
545 | (buff[0]=='/'&&buff[1]=='/')) continue; | |
546 | if(isalpha(buff[0])) { // must be the new file formated file. | |
269f57ed | 547 | fclose(pf); |
548 | delete[] fNlad;delete[] fNdet; | |
549 | ReadNewFile(filename); | |
550 | return; | |
85f1e34a | 551 | } // end if isalpha(buff[0]) |
552 | sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f", | |
553 | &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t); | |
554 | if(l>lm) lm = l; | |
555 | if(l<1 || l>fNlayers) { | |
556 | printf("error in file %s layer=%d min. is 1 max is %d\n", | |
557 | filename,l,fNlayers); | |
558 | continue; | |
559 | }// end if l | |
560 | fNmodules++; | |
561 | if(l<=fNlayers&&fNlad[l-1]<a) fNlad[l-1] = a; | |
562 | if(l<=fNlayers&&fNdet[l-1]<d) fNdet[l-1] = d; | |
563 | } // end while ever loop | |
564 | if(lm>fNlayers){ | |
269f57ed | 565 | delete[] fNlad; |
566 | delete[] fNdet; | |
567 | fNlayers = lm; | |
568 | goto TryAgain; | |
85f1e34a | 569 | } // end if lm>fNlayers |
570 | // counted the number of ladders and detectors now allocate space. | |
571 | fGm = new TObjArray(fNmodules,0); | |
58005f18 | 572 | |
85f1e34a | 573 | // Set up Shapes for a default configuration of 6 layers. |
574 | fTrans = 0; // standard GEANT global/local coordinate system. | |
575 | // prepare to read in transforms | |
576 | lm = 0; // reuse lm as counter of modules. | |
577 | rewind(pf); // start over reading file | |
578 | while(fgets(buf,200,pf)!=NULL){ // for ever loop | |
579 | for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces. | |
580 | buff = &(buf[i]); | |
581 | break; | |
582 | } // end for i | |
583 | // remove blank lines and comments. | |
584 | if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'|| | |
585 | (buff[0]=='/'&&buff[1]=='/')) continue; | |
586 | x = y = z = o = p = q = r = s = t = 0.0; | |
587 | sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f", | |
588 | &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t); | |
589 | if(l<1 || l>fNlayers) { | |
590 | printf("error in file %s layer=%d min. is 1 max is %d/n", | |
591 | filename,l,fNlayers); | |
592 | continue; | |
593 | }// end if l | |
594 | id[0] = l;id[1] = a;id[2] = d; | |
595 | tran[0] = tran[1] = tran[2] = 0.0; | |
596 | tran[0] = (Double_t)x;tran[1] = (Double_t)y;tran[2] = (Double_t)z; | |
597 | rot6[0] = rot6[1] = rot6[2] = rot6[3] = rot6[4] = rot6[5] =0.0; | |
598 | rot6[0] = (Double_t)o;rot6[1] = (Double_t)p;rot6[2] = (Double_t)q; | |
599 | rot6[3] = (Double_t)r;rot6[4] = (Double_t)s;rot6[5] = (Double_t)t; | |
600 | switch (l){ | |
601 | case 1: case 2: // layer 1 or2 SPD | |
602 | fGm->AddAt(new AliITSgeomMatrix(rot6,kSPD,id,tran),lm++); | |
603 | break; | |
604 | case 3: case 4: // layer 3 or 4 SDD | |
605 | fGm->AddAt(new AliITSgeomMatrix(rot6,kSDD,id,tran),lm++); | |
606 | break; | |
607 | case 5: case 6: // layer 5 or 6 SSD | |
608 | fGm->AddAt(new AliITSgeomMatrix(rot6,kSSD,id,tran),lm++); | |
609 | break; | |
610 | } // end switch | |
611 | } // end while ever loop | |
612 | fclose(pf); | |
58005f18 | 613 | } |
85f1e34a | 614 | //______________________________________________________________________ |
269f57ed | 615 | AliITSgeom::AliITSgeom(AliITSgeom &source){ |
85f1e34a | 616 | // The copy constructor for the AliITSgeom class. It calls the |
617 | // = operator function. See the = operator function for more details. | |
618 | // Inputs are: | |
619 | // AliITSgeom &source The AliITSgeom class with which to make this | |
620 | // a copy of. | |
621 | // Outputs are: | |
622 | // none. | |
593e9459 | 623 | |
624 | *this = source; // Just use the = operator for now. | |
593e9459 | 625 | return; |
58005f18 | 626 | } |
85f1e34a | 627 | //______________________________________________________________________ |
628 | AliITSgeom& AliITSgeom::operator=(AliITSgeom &source){ | |
629 | // The = operator function for the AliITSgeom class. It makes an | |
630 | // independent copy of the class in such a way that any changes made | |
631 | // to the copied class will not affect the source class in any way. | |
632 | // This is required for many ITS alignment studies where the copied | |
633 | // class is then modified by introducing some misalignment. | |
634 | // Inputs are: | |
635 | // AliITSgeom &source The AliITSgeom class with which to make this | |
636 | // a copy of. | |
637 | // Outputs are: | |
638 | // return *this The a new copy of source. | |
269f57ed | 639 | Int_t i; |
58005f18 | 640 | |
85f1e34a | 641 | if(this == &source) return *this; // don't assign to ones self. |
58005f18 | 642 | |
643 | // if there is an old structure allocated delete it first. | |
269f57ed | 644 | if(this->fGm != 0){ |
8253cd9a | 645 | for(i=0;i<this->fNmodules;i++) delete this->fGm->At(i); |
269f57ed | 646 | delete this->fGm; |
085bb6ed | 647 | } // end if fGm != 0 |
648 | if(fNlad != 0) delete[] fNlad; | |
649 | if(fNdet != 0) delete[] fNdet; | |
650 | ||
269f57ed | 651 | this->fTrans = source.fTrans; |
652 | this->fNmodules = source.fNmodules; | |
653 | this->fNlayers = source.fNlayers; | |
654 | this->fNlad = new Int_t[fNlayers]; | |
655 | for(i=0;i<this->fNlayers;i++) this->fNlad[i] = source.fNlad[i]; | |
656 | this->fNdet = new Int_t[fNlayers]; | |
657 | for(i=0;i<this->fNlayers;i++) this->fNdet[i] = source.fNdet[i]; | |
658 | this->fShape = new TObjArray(*(source.fShape));//This does not make a proper copy. | |
8253cd9a | 659 | this->fGm = new TObjArray(this->fNmodules,0); |
269f57ed | 660 | for(i=0;i<this->fNmodules;i++){ |
8253cd9a | 661 | this->fGm->AddAt(new AliITSgeomMatrix(*( |
662 | (AliITSgeomMatrix*)(source.fGm->At(i)))),i); | |
085bb6ed | 663 | } // end for i |
85f1e34a | 664 | return *this; |
665 | } | |
666 | //______________________________________________________________________ | |
667 | Int_t AliITSgeom::GetModuleIndex(Int_t lay,Int_t lad,Int_t det){ | |
668 | // This routine computes the module index number from the layer, | |
669 | // ladder, and detector numbers. The number of ladders and detectors | |
670 | // per layer is determined when this geometry package is constructed, | |
671 | // see AliITSgeom(const char *filename) for specifics. | |
672 | // Inputs are: | |
673 | // Int_t lay The layer number. Starting from 1. | |
674 | // Int_t lad The ladder number. Starting from 1. | |
675 | // Int_t det The detector number. Starting from 1. | |
676 | // Outputs are: | |
677 | // return the module index number, starting from zero. | |
269f57ed | 678 | Int_t i,j,k,id[3]; |
593e9459 | 679 | |
680 | i = fNdet[lay-1] * (lad-1) + det - 1; | |
681 | j = 0; | |
682 | for(k=0;k<lay-1;k++) j += fNdet[k]*fNlad[k]; | |
269f57ed | 683 | i = i+j; |
8253cd9a | 684 | GetGeomMatrix(i)->GetIndex(id); |
269f57ed | 685 | if(id[0]==lay&&id[1]==lad&&id[2]==det) return i; |
686 | // Array of modules fGm is not in expected order. Search for this index | |
687 | for(i=0;i<fNmodules;i++){ | |
8253cd9a | 688 | GetGeomMatrix(i)->GetIndex(id); |
269f57ed | 689 | if(id[0]==lay&&id[1]==lad&&id[2]==det) return i; |
690 | } // end for i | |
691 | // This layer ladder and detector combination does not exist return -1. | |
692 | return -1; | |
593e9459 | 693 | } |
269f57ed | 694 | //______________________________________________________________________ |
85f1e34a | 695 | void AliITSgeom::GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det){ |
696 | // This routine computes the layer, ladder and detector number | |
697 | // given the module index number. The number of ladders and detectors | |
698 | // per layer is determined when this geometry package is constructed, | |
699 | // see AliITSgeom(const char *filename) for specifics. | |
700 | // Inputs are: | |
701 | // Int_t index The module index number, starting from zero. | |
702 | // Outputs are: | |
703 | // Int_t lay The layer number. Starting from 1. | |
704 | // Int_t lad The ladder number. Starting from 1. | |
705 | // Int_t det The detector number. Starting from 1. | |
269f57ed | 706 | Int_t id[3]; |
593e9459 | 707 | |
8253cd9a | 708 | GetGeomMatrix(index)->GetIndex(id); |
269f57ed | 709 | lay = id[0]; lad = id[1]; det = id[2]; |
710 | return; | |
711 | ||
712 | // The old way kept for posterity. | |
713 | /* | |
714 | Int_t i,j,k; | |
593e9459 | 715 | j = 0; |
716 | for(k=0;k<fNlayers;k++){ | |
58005f18 | 717 | j += fNdet[k]*fNlad[k]; |
aa6248e2 | 718 | if(j>index)break; |
58005f18 | 719 | } // end for k |
720 | lay = k+1; | |
721 | i = index -j + fNdet[k]*fNlad[k]; | |
722 | j = 0; | |
723 | for(k=0;k<fNlad[lay-1];k++){ | |
aa6248e2 | 724 | j += fNdet[lay-1]; |
725 | if(j>i)break; | |
58005f18 | 726 | } // end for k |
727 | lad = k+1; | |
728 | det = 1+i-fNdet[lay-1]*k; | |
729 | return; | |
269f57ed | 730 | */ |
58005f18 | 731 | } |
85f1e34a | 732 | //______________________________________________________________________ |
733 | Int_t AliITSgeom::GetStartDet(Int_t dtype){ | |
734 | // returns the starting module index value for a give type of detector id. | |
735 | // This assumes that the detector types are different on different layers | |
736 | // and that they are not mixed up. | |
737 | // Inputs are: | |
738 | // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD. | |
739 | // outputs: | |
740 | // return the module index for the first occurance of that detector type. | |
741 | ||
742 | switch(dtype){ | |
743 | case 0: | |
744 | return GetModuleIndex(1,1,1); | |
745 | break; | |
746 | case 1: | |
747 | return GetModuleIndex(3,1,1); | |
748 | break; | |
749 | case 2: | |
750 | return GetModuleIndex(5,1,1); | |
751 | break; | |
752 | default: | |
753 | Warning("GetStartDet","undefined detector type %d",dtype); | |
754 | return 0; | |
755 | } // end switch | |
756 | ||
757 | Warning("GetStartDet","undefined detector type %d",dtype); | |
758 | return 0; | |
085bb6ed | 759 | } |
85f1e34a | 760 | //______________________________________________________________________ |
761 | Int_t AliITSgeom::GetLastDet(Int_t dtype){ | |
762 | // returns the last module index value for a give type of detector id. | |
763 | // This assumes that the detector types are different on different layers | |
764 | // and that they are not mixed up. | |
765 | // Inputs are: | |
766 | // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD. | |
767 | // outputs are: | |
768 | // return the module index for the last occurance of that detector type. | |
769 | ||
770 | switch(dtype){ | |
771 | case 0: | |
772 | return GetLastSPD(); | |
773 | break; | |
774 | case 1: | |
775 | return GetLastSDD(); | |
776 | break; | |
777 | case 2: | |
778 | return GetLastSSD(); | |
779 | break; | |
780 | default: | |
781 | Warning("GetLastDet","undefined detector type %d",dtype); | |
782 | return 0; | |
783 | } // end switch | |
784 | ||
785 | Warning("GetLastDet","undefined detector type %d",dtype); | |
786 | return 0; | |
085bb6ed | 787 | } |
85f1e34a | 788 | //______________________________________________________________________ |
593e9459 | 789 | void AliITSgeom::PrintComparison(FILE *fp,AliITSgeom *other){ |
85f1e34a | 790 | // This function was primarily created for diagnostic reasons. It |
791 | // print to a file pointed to by the file pointer fp the difference | |
792 | // between two AliITSgeom classes. The format of the file is basicly, | |
793 | // define d? to be the difference between the same element of the two | |
794 | // classes. For example dfrx = this->GetGeomMatrix(i)->frx | |
795 | // - other->GetGeomMatrix(i)->frx. | |
796 | // if(at least one of dfx0, dfy0, dfz0,dfrx,dfry,dfrz are non zero) then | |
797 | // print layer ladder detector dfx0 dfy0 dfz0 dfrx dfry dfrz | |
798 | // if(at least one of the 9 elements of dfr[] are non zero) then print | |
799 | // layer ladder detector dfr[0] dfr[1] dfr[2] | |
800 | // dfr[3] dfr[4] dfr[5] | |
801 | // dfr[6] dfr[7] dfr[8] | |
802 | // Only non zero values are printed to save space. The differences are | |
803 | // typical written to a file because there are usually a lot of numbers | |
804 | // printed out and it is usually easier to read them in some nice editor | |
805 | // rather than zooming quickly past you on a screen. fprintf is used to | |
806 | // do the printing. The fShapeIndex difference is not printed at this time. | |
807 | // Inputs are: | |
808 | // FILE *fp A file pointer to an opened file for writing in which | |
809 | // the results of the comparison will be written. | |
810 | // AliITSgeom *other The other AliITSgeom class to which this one is | |
811 | // being compared. | |
812 | // outputs are: | |
813 | // none | |
814 | Int_t i,j,idt[3],ido[3]; | |
815 | Double_t tt[3],to[3]; // translation | |
816 | Double_t rt[3],ro[3]; // phi in radians | |
817 | Double_t mt[3][3],mo[3][3]; // matrixes | |
818 | AliITSgeomMatrix *gt,*go; | |
819 | Bool_t t; | |
820 | ||
821 | for(i=0;i<this->fNmodules;i++){ | |
822 | gt = this->GetGeomMatrix(i); | |
823 | go = other->GetGeomMatrix(i); | |
824 | gt->GetIndex(idt); | |
825 | go->GetIndex(ido); | |
826 | t = kFALSE; | |
827 | for(i=0;i<3;i++) t = t&&idt[i]!=ido[i]; | |
828 | if(t) fprintf(fp,"%4.4d %1.1d %2.2d %2.2d %1.1d %2.2d %2.2d\n",i, | |
829 | idt[0],idt[1],idt[2],ido[0],ido[1],ido[2]); | |
830 | gt->GetTranslation(tt); | |
831 | go->GetTranslation(to); | |
832 | gt->GetAngles(rt); | |
833 | go->GetAngles(ro); | |
834 | t = kFALSE; | |
835 | for(i=0;i<3;i++) t = t&&tt[i]!=to[i]; | |
836 | if(t) fprintf(fp,"%1.1d %2.2d %2.2d dTrans=%f %f %f drot=%f %f %f\n", | |
837 | idt[0],idt[1],idt[2], | |
838 | tt[0]-to[0],tt[1]-to[1],tt[2]-to[2], | |
839 | rt[0]-ro[0],rt[1]-ro[1],rt[2]-ro[2]); | |
840 | t = kFALSE; | |
841 | gt->GetMatrix(mt); | |
842 | go->GetMatrix(mo); | |
843 | for(i=0;i<3;i++)for(j=0;j<3;j++) t = mt[i][j] != mo[i][j]; | |
844 | if(t){ | |
845 | fprintf(fp,"%1.1d %2.2d %2.2d dfr= %e %e %e\n", | |
846 | idt[0],idt[1],idt[2], | |
847 | mt[0][0]-mo[0][0],mt[0][1]-mo[0][1],mt[0][2]-mo[0][2]); | |
848 | fprintf(fp," dfr= %e %e %e\n", | |
849 | mt[1][0]-mo[1][0],mt[1][1]-mo[1][1],mt[1][2]-mo[1][2]); | |
850 | fprintf(fp," dfr= %e %e %e\n", | |
851 | mt[2][0]-mo[2][0],mt[2][1]-mo[2][1],mt[2][2]-mo[2][2]); | |
852 | } // end if t | |
853 | } // end for i | |
854 | return; | |
58005f18 | 855 | } |
85f1e34a | 856 | //______________________________________________________________________ |
857 | void AliITSgeom::PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det){ | |
858 | // This function prints out the coordinate transformations for | |
859 | // the particular detector defined by layer, ladder, and detector | |
860 | // to the file pointed to by the File pointer fp. fprintf statements | |
861 | // are used to print out the numbers. The format is | |
862 | // layer ladder detector Trans= fx0 fy0 fz0 rot= frx fry frz | |
863 | // Shape=fShapeIndex | |
864 | // dfr= fr[0] fr[1] fr[2] | |
865 | // dfr= fr[3] fr[4] fr[5] | |
866 | // dfr= fr[6] fr[7] fr[8] | |
867 | // By indicating which detector, some control over the information | |
868 | // is given to the user. The output it written to the file pointed | |
869 | // to by the file pointer fp. This can be set to stdout if you want. | |
870 | // Inputs are: | |
871 | // FILE *fp A file pointer to an opened file for writing in which | |
872 | // the results of the comparison will be written. | |
873 | // Int_t lay The layer number. Starting from 1. | |
874 | // Int_t lad The ladder number. Starting from 1. | |
875 | // Int_t det The detector number. Starting from 1. | |
876 | // outputs are: | |
877 | // none | |
878 | AliITSgeomMatrix *gt; | |
879 | Double_t t[3],r[3],m[3][3]; | |
880 | ||
881 | gt = this->GetGeomMatrix(GetModuleIndex(lay,lad,det)); | |
882 | gt->GetTranslation(t); | |
883 | gt->GetAngles(r); | |
884 | fprintf(fp,"%1.1d %2.2d %2.2d Trans=%f %f %f rot=%f %f %f Shape=%d\n", | |
885 | lay,lad,det,t[0],t[1],t[2],r[0],r[1],r[2], | |
886 | gt->GetDetectorIndex()); | |
887 | gt->GetMatrix(m); | |
888 | fprintf(fp," dfr= %e %e %e\n",m[0][0],m[0][1],m[0][2]); | |
889 | fprintf(fp," dfr= %e %e %e\n",m[1][0],m[1][1],m[1][2]); | |
890 | fprintf(fp," dfr= %e %e %e\n",m[2][0],m[2][1],m[2][2]); | |
891 | return; | |
58005f18 | 892 | } |
85f1e34a | 893 | //______________________________________________________________________ |
894 | ofstream & AliITSgeom::PrintGeom(ofstream &rb){ | |
895 | // Stream out an object of class AliITSgeom to standard output. | |
896 | // Intputs are: | |
897 | // ofstream &rb The output streaming buffer. | |
898 | // Outputs are: | |
899 | // ofstream &rb The output streaming buffer. | |
269f57ed | 900 | Int_t i; |
593e9459 | 901 | |
85f1e34a | 902 | rb.setf(ios::scientific); |
903 | rb << fTrans << " "; | |
904 | rb << fNmodules << " "; | |
905 | rb << fNlayers << " "; | |
906 | for(i=0;i<fNlayers;i++) rb << fNlad[i] << " "; | |
907 | for(i=0;i<fNlayers;i++) rb << fNdet[i] << "\n"; | |
269f57ed | 908 | for(i=0;i<fNmodules;i++) { |
85f1e34a | 909 | rb <<setprecision(16) << *(GetGeomMatrix(i)) << "\n"; |
269f57ed | 910 | } // end for i |
85f1e34a | 911 | return rb; |
593e9459 | 912 | } |
85f1e34a | 913 | //______________________________________________________________________ |
914 | ifstream & AliITSgeom::ReadGeom(ifstream &rb){ | |
915 | // Stream in an object of class AliITSgeom from standard input. | |
916 | // Intputs are: | |
917 | // ifstream &rb The input streaming buffer. | |
918 | // Outputs are: | |
919 | // ifstream &rb The input streaming buffer. | |
920 | Int_t i; | |
269f57ed | 921 | |
85f1e34a | 922 | fNlad = new Int_t[fNlayers]; |
923 | fNdet = new Int_t[fNlayers]; | |
924 | if(fGm!=0){ | |
925 | for(i=0;i<fNmodules;i++) delete GetGeomMatrix(i); | |
926 | delete fGm; | |
927 | } // end if fGm!=0 | |
928 | ||
929 | rb >> fTrans >> fNmodules >> fNlayers; | |
930 | fNlad = new Int_t[fNlayers]; | |
931 | fNdet = new Int_t[fNlayers]; | |
932 | for(i=0;i<fNlayers;i++) rb >> fNlad[i]; | |
933 | for(i=0;i<fNlayers;i++) rb >> fNdet[i]; | |
934 | fGm = new TObjArray(fNmodules,0); | |
935 | for(i=0;i<fNmodules;i++){ | |
936 | fGm->AddAt(new AliITSgeomMatrix,i); | |
937 | rb >> *(GetGeomMatrix(i)); | |
938 | } // end for i | |
939 | return rb; | |
593e9459 | 940 | } |
593e9459 | 941 | //______________________________________________________________________ |
269f57ed | 942 | // The following routines modify the transformation of "this" |
943 | // geometry transformations in a number of different ways. | |
593e9459 | 944 | //______________________________________________________________________ |
269f57ed | 945 | void AliITSgeom::GlobalChange(const Float_t *tran,const Float_t *rot){ |
85f1e34a | 946 | // This function performs a Cartesian translation and rotation of |
947 | // the full ITS from its default position by an amount determined by | |
948 | // the three element arrays tran and rot. If every element | |
949 | // of tran and rot are zero then there is no change made | |
950 | // the geometry. The change is global in that the exact same translation | |
951 | // and rotation is done to every detector element in the exact same way. | |
952 | // The units of the translation are those of the Monte Carlo, usually cm, | |
953 | // and those of the rotation are in radians. The elements of tran | |
954 | // are tran[0] = x, tran[1] = y, and tran[2] = z. | |
955 | // The elements of rot are rot[0] = rx, rot[1] = ry, and | |
956 | // rot[2] = rz. A change in x will move the hole ITS in the ALICE | |
957 | // global x direction, the same for a change in y. A change in z will | |
958 | // result in a translation of the ITS as a hole up or down the beam line. | |
959 | // A change in the angles will result in the inclination of the ITS with | |
960 | // respect to the beam line, except for an effective rotation about the | |
961 | // beam axis which will just rotate the ITS as a hole about the beam axis. | |
962 | // Intputs are: | |
963 | // Float_t *tran A 3 element array representing the global translations. | |
964 | // the elements are x,y,z in cm. | |
965 | // Float_t *rot A 3 element array representing the global rotation | |
966 | // angles about the three axis x,y,z in radians | |
967 | // Outputs are: | |
968 | // none. | |
969 | Int_t i,j; | |
970 | Double_t t[3],r[3]; | |
971 | AliITSgeomMatrix *g; | |
972 | ||
973 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
974 | for(i=0;i<fNmodules;i++){ | |
975 | g = this->GetGeomMatrix(i); | |
976 | g->GetTranslation(t); | |
977 | g->GetAngles(r); | |
978 | for(j=0;j<3;j++){ | |
979 | t[j] += tran[j]; | |
980 | r[j] += rot[j]; | |
981 | } // end for j | |
982 | g->SetTranslation(t); | |
983 | g->SetAngles(r); | |
984 | } // end for i | |
985 | return; | |
593e9459 | 986 | } |
85f1e34a | 987 | //______________________________________________________________________ |
988 | void AliITSgeom::GlobalCylindericalChange(const Float_t *tran, | |
989 | const Float_t *rot){ | |
990 | // This function performs a cylindrical translation and rotation of | |
991 | // each ITS element by a fixed about in radius, rphi, and z from its | |
992 | // default position by an amount determined by the three element arrays | |
993 | // tran and rot. If every element of tran and | |
994 | // rot are zero then there is no change made the geometry. The | |
995 | // change is global in that the exact same distance change in translation | |
996 | // and rotation is done to every detector element in the exact same way. | |
997 | // The units of the translation are those of the Monte Carlo, usually cm, | |
998 | // and those of the rotation are in radians. The elements of tran | |
999 | // are tran[0] = r, tran[1] = rphi, and tran[2] = z. | |
1000 | // The elements of rot are rot[0] = rx, rot[1] = ry, and | |
1001 | // rot[2] = rz. A change in r will results in the increase of the | |
1002 | // radius of each layer by the same about. A change in rphi will results in | |
1003 | // the rotation of each layer by a different angle but by the same | |
1004 | // circumferential distance. A change in z will result in a translation | |
1005 | // of the ITS as a hole up or down the beam line. A change in the angles | |
1006 | // will result in the inclination of the ITS with respect to the beam | |
1007 | // line, except for an effective rotation about the beam axis which will | |
1008 | // just rotate the ITS as a hole about the beam axis. | |
1009 | // Intputs are: | |
1010 | // Float_t *tran A 3 element array representing the global translations. | |
1011 | // the elements are r,theta,z in cm/radians. | |
1012 | // Float_t *rot A 3 element array representing the global rotation | |
1013 | // angles about the three axis x,y,z in radians | |
1014 | // Outputs are: | |
1015 | // none. | |
1016 | Int_t i,j; | |
1017 | Double_t t[3],ro[3],r,r0,phi,rphi; | |
1018 | AliITSgeomMatrix *g; | |
1019 | ||
1020 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1021 | for(i=0;i<fNmodules;i++){ | |
1022 | g = this->GetGeomMatrix(i); | |
1023 | g->GetTranslation(t); | |
1024 | g->GetAngles(ro); | |
1025 | r = r0= TMath::Hypot(t[1],t[0]); | |
1026 | phi = TMath::ATan2(t[1],t[0]); | |
1027 | rphi = r0*phi; | |
1028 | r += tran[0]; | |
1029 | rphi += tran[1]; | |
1030 | phi = rphi/r0; | |
1031 | t[0] = r*TMath::Cos(phi); | |
1032 | t[1] = r*TMath::Sin(phi); | |
1033 | t[2] += tran[2]; | |
1034 | for(j=0;j<3;j++){ | |
1035 | ro[j] += rot[j]; | |
1036 | } // end for j | |
1037 | g->SetTranslation(t); | |
1038 | g->SetAngles(ro); | |
1039 | } // end for i | |
1040 | return; | |
593e9459 | 1041 | } |
85f1e34a | 1042 | //______________________________________________________________________ |
269f57ed | 1043 | void AliITSgeom::RandomChange(const Float_t *stran,const Float_t *srot){ |
85f1e34a | 1044 | // This function performs a Gaussian random displacement and/or |
1045 | // rotation about the present global position of each active | |
1046 | // volume/detector of the ITS. The sigma of the random displacement | |
1047 | // is determined by the three element array stran, for the | |
1048 | // x y and z translations, and the three element array srot, | |
1049 | // for the three rotation about the axis x y and z. | |
1050 | // Intputs are: | |
1051 | // Float_t *stran A 3 element array representing the global translations | |
1052 | // variances. The elements are x,y,z in cm. | |
1053 | // Float_t *srot A 3 element array representing the global rotation | |
1054 | // angles variances about the three axis x,y,z in radians. | |
1055 | // Outputs are: | |
1056 | // none. | |
1057 | Int_t i,j; | |
1058 | Double_t t[3],r[3]; | |
1059 | AliITSgeomMatrix *g; | |
1060 | ||
1061 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1062 | for(i=0;i<fNmodules;i++){ | |
1063 | g = this->GetGeomMatrix(i); | |
1064 | g->GetTranslation(t); | |
1065 | g->GetAngles(r); | |
1066 | for(j=0;j<3;j++){ | |
1067 | t[j] += gRandom->Gaus(0.0,stran[j]); | |
1068 | r[j] += gRandom->Gaus(0.0, srot[j]); | |
1069 | } // end for j | |
1070 | g->SetTranslation(t); | |
1071 | g->SetAngles(r); | |
1072 | } // end for i | |
1073 | return; | |
593e9459 | 1074 | } |
85f1e34a | 1075 | //______________________________________________________________________ |
269f57ed | 1076 | void AliITSgeom::RandomCylindericalChange(const Float_t *stran, |
1077 | const Float_t *srot){ | |
85f1e34a | 1078 | // This function performs a Gaussian random displacement and/or |
1079 | // rotation about the present global position of each active | |
1080 | // volume/detector of the ITS. The sigma of the random displacement | |
1081 | // is determined by the three element array stran, for the | |
1082 | // r rphi and z translations, and the three element array srot, | |
1083 | // for the three rotation about the axis x y and z. This random change | |
1084 | // in detector position allow for the simulation of a random uncertainty | |
1085 | // in the detector positions of the ITS. | |
1086 | // Intputs are: | |
1087 | // Float_t *stran A 3 element array representing the global translations | |
1088 | // variances. The elements are r,theta,z in cm/readians. | |
1089 | // Float_t *srot A 3 element array representing the global rotation | |
1090 | // angles variances about the three axis x,y,z in radians. | |
1091 | // Outputs are: | |
1092 | // none. | |
1093 | Int_t i,j; | |
1094 | Double_t t[3],ro[3],r,r0,phi,rphi; | |
1095 | TRandom ran; | |
1096 | AliITSgeomMatrix *g; | |
1097 | ||
1098 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1099 | for(i=0;i<fNmodules;i++){ | |
1100 | g = this->GetGeomMatrix(i); | |
1101 | g->GetTranslation(t); | |
1102 | g->GetAngles(ro); | |
1103 | r = r0= TMath::Hypot(t[1],t[0]); | |
1104 | phi = TMath::ATan2(t[1],t[0]); | |
1105 | rphi = r0*phi; | |
1106 | r += ran.Gaus(0.0,stran[0]); | |
1107 | rphi += ran.Gaus(0.0,stran[1]); | |
1108 | phi = rphi/r0; | |
1109 | t[0] = r*TMath::Cos(phi); | |
1110 | t[1] = r*TMath::Sin(phi); | |
1111 | t[2] += ran.Gaus(0.0,stran[2]); | |
1112 | for(j=0;j<3;j++){ | |
1113 | ro[j] += ran.Gaus(0.0, srot[j]); | |
1114 | } // end for j | |
1115 | g->SetTranslation(t); | |
1116 | g->SetAngles(ro); | |
1117 | } // end for i | |
1118 | return; | |
593e9459 | 1119 | } |
1120 | //______________________________________________________________________ | |
1121 | void AliITSgeom::GeantToTracking(AliITSgeom &source){ | |
85f1e34a | 1122 | // Copy the geometry data but change it to go between the ALICE |
1123 | // Global coordinate system to that used by the ITS tracking. A slightly | |
1124 | // different coordinate system is used when tracking. This coordinate | |
1125 | // system is only relevant when the geometry represents the cylindrical | |
1126 | // ALICE ITS geometry. For tracking the Z axis is left alone but X-> -Y | |
1127 | // and Y-> X such that X always points out of the ITS cylinder for every | |
1128 | // layer including layer 1 (where the detectors are mounted upside down). | |
1129 | // Inputs are: | |
1130 | // AliITSgeom &source The AliITSgeom class with which to make this | |
1131 | // a copy of. | |
1132 | // Outputs are: | |
1133 | // return *this The a new copy of source. | |
1134 | //Begin_Html | |
1135 | /* | |
1136 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
1137 | */ | |
1138 | //End_Html | |
1139 | Int_t i,j,k,l,id[3]; | |
1140 | Double_t r0[3][3],r1[3][3]; | |
1141 | Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}}; | |
1142 | Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}}; | |
1143 | ||
1144 | *this = source; // copy everything | |
1145 | for(i=0;i<GetIndexMax();i++){ | |
1146 | GetGeomMatrix(i)->GetIndex(id); | |
1147 | GetGeomMatrix(i)->GetMatrix(r0); | |
1148 | if(id[0]==1){ // Layer 1 is treated different from the others. | |
1149 | for(j=0;j<3;j++) for(k=0;k<3;k++){ | |
1150 | r1[j][k] = 0.; | |
1151 | for(l=0;l<3;l++) r1[j][k] += a0[j][l]*r0[l][k]; | |
1152 | } // end for j,k | |
1153 | }else{ | |
1154 | for(j=0;j<3;j++) for(k=0;k<3;k++){ | |
1155 | r1[j][k] = 0.; | |
1156 | for(l=0;l<3;l++) r1[j][k] += a1[j][l]*r0[l][k]; | |
1157 | } // end for j,k | |
1158 | } // end if | |
1159 | GetGeomMatrix(i)->SetMatrix(r1); | |
1160 | } // end for i | |
1161 | this->fTrans = (this->fTrans && 0xfffe) + 1; // set bit 0 true. | |
1162 | return; | |
58005f18 | 1163 | } |
269f57ed | 1164 | //______________________________________________________________________ |
85f1e34a | 1165 | Int_t AliITSgeom::GetNearest(const Double_t g[3],Int_t lay){ |
1166 | // Finds the Detector (Module) that is nearest the point g [cm] in | |
1167 | // ALICE Global coordinates. If layer !=0 then the search is restricted | |
1168 | // to Detectors (Modules) in that particular layer. | |
1169 | // Inputs are: | |
1170 | // Double_t g[3] The ALICE Cartesean global coordinate from which the | |
1171 | // distance is to be calculated with. | |
1172 | // Int_t lay The layer to restrict the search to. If layer=0 then | |
1173 | // all layers are searched. Default is lay=0. | |
1174 | // Outputs are: | |
1175 | // return The module number representing the nearest module. | |
1176 | Int_t i,l,a,e,in=0; | |
1177 | Double_t d,dn=1.0e10; | |
1178 | Bool_t t=lay!=0; // skip if lay = 0 default value check all layers. | |
085bb6ed | 1179 | |
85f1e34a | 1180 | for(i=0;i<fNmodules;i++){ |
1181 | if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;} | |
1182 | if((d=GetGeomMatrix(i)->Distance2(g))<dn){ | |
1183 | dn = d; | |
1184 | in = i; | |
1185 | } // end if | |
1186 | } // end for i | |
1187 | return in; | |
085bb6ed | 1188 | } |
269f57ed | 1189 | //______________________________________________________________________ |
85f1e34a | 1190 | void AliITSgeom::GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay){ |
1191 | // Finds 27 Detectors (Modules) that are nearest the point g [cm] in | |
1192 | // ALICE Global coordinates. If layer !=0 then the search is restricted | |
1193 | // to Detectors (Modules) in that particular layer. The number 27 comes | |
1194 | // from including the nearest detector and all those around it (up, down, | |
1195 | // left, right, forwards, backwards, and the corners). | |
1196 | // Inputs are: | |
1197 | // Double_t g[3] The ALICE Cartesean global coordinate from which the | |
1198 | // distance is to be calculated with. | |
1199 | // Int_t lay The layer to restrict the search to. If layer=0 then | |
1200 | // all layers are searched. Default is lay=0. | |
1201 | // Outputs are: | |
1202 | // Int_t n[27] The module number representing the nearest 27 modules | |
1203 | // in order. | |
1204 | Int_t i,l,a,e,in[27]={0,0,0,0,0,0,0,0,0, | |
1205 | 0,0,0,0,0,0,0,0,0, | |
1206 | 0,0,0,0,0,0,0,0,0,}; | |
1207 | Double_t d,dn[27]={1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1208 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1209 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1210 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1211 | 1.0e10,1.0e10,1.0e10}; | |
1212 | Bool_t t=(lay!=0); // skip if lay = 0 default value check all layers. | |
269f57ed | 1213 | |
85f1e34a | 1214 | for(i=0;i<fNmodules;i++){ |
1215 | if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;} | |
1216 | for(a=0;a<27;a++){ | |
1217 | d = GetGeomMatrix(i)->Distance2(g); | |
1218 | if(d<dn[a]){ | |
1219 | for(e=26;e>a;e--){dn[e] = dn[e-1];in[e] = in[e-1];} | |
1220 | dn[a] = d; in[a] = i; | |
1221 | } // end if d<dn[i] | |
1222 | } // end for a | |
1223 | } // end for i | |
1224 | for(i=0;i<27;i++) n[i] = in[i]; | |
269f57ed | 1225 | } |
1226 | //---------------------------------------------------------------------- |