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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 | ||
88cb7938 | 16 | /* $Id$ */ |
4c039060 | 17 | |
58005f18 | 18 | /////////////////////////////////////////////////////////////////////// |
593e9459 | 19 | // ITS geometry manipulation routines. // |
58005f18 | 20 | // Created April 15 1999. // |
21 | // version: 0.0.0 // | |
22 | // By: Bjorn S. Nilsen // | |
23 | // version: 0.0.1 // | |
24 | // Updated May 27 1999. // | |
023ae34b | 25 | // Added Cylindrical random and global based changes. // |
58005f18 | 26 | // Added function PrintComparison. // |
023ae34b | 27 | // Modified and added functions Feb. 7 2006 // |
58005f18 | 28 | /////////////////////////////////////////////////////////////////////// |
593e9459 | 29 | |
30 | ||
31 | //////////////////////////////////////////////////////////////////////// | |
593e9459 | 32 | // The local coordinate system by, default, is show in the following |
33 | // figures. Also shown are the ladder numbering scheme. | |
34 | //Begin_Html | |
35 | /* | |
269f57ed | 36 | <img src="picts/ITS/AliITSgeomMatrix_L1.gif"> |
37 | </pre> | |
38 | <br clear=left> | |
39 | <font size=+2 color=blue> | |
40 | <p>This shows the relative geometry differences between the ALICE Global | |
41 | coordinate system and the local detector coordinate system. | |
42 | </font> | |
43 | <pre> | |
44 | ||
45 | <pre> | |
593e9459 | 46 | <img src="picts/ITS/its1+2_convention_front_5.gif"> |
47 | </pre> | |
48 | <br clear=left> | |
49 | <font size=+2 color=blue> | |
50 | <p>This shows the front view of the SPDs and the orientation of the local | |
51 | pixel coordinate system. Note that the inner pixel layer has its y coordinate | |
52 | in the opposite direction from all of the other layers. | |
53 | </font> | |
54 | <pre> | |
55 | ||
56 | <pre> | |
57 | <img src="picts/ITS/its3+4_convention_front_5.gif"> | |
58 | </pre> | |
59 | <br clear=left> | |
60 | <font size=+2 color=blue> | |
61 | <p>This shows the front view of the SDDs and the orientation of the local | |
62 | pixel coordinate system. | |
63 | </font> | |
64 | <pre> | |
65 | ||
66 | <pre> | |
67 | <img src="picts/ITS/its5+6_convention_front_5.gif"> | |
68 | </pre> | |
69 | <br clear=left> | |
70 | <font size=+2 color=blue> | |
71 | <p>This shows the front view of the SSDs and the orientation of the local | |
72 | pixel coordinate system. | |
73 | </font> | |
74 | <pre> | |
75 | */ | |
76 | //End_Html | |
269f57ed | 77 | // |
593e9459 | 78 | //////////////////////////////////////////////////////////////////////// |
79 | ||
80 | //////////////////////////////////////////////////////////////////////// | |
81 | // | |
82 | // version: 0 | |
83 | // Written by Bjorn S. Nilsen | |
84 | // | |
85 | // Data Members: | |
86 | // | |
023ae34b | 87 | // TString fVersion |
88 | // Transformation version. | |
89 | // Int_t fTrans | |
90 | // Flag to keep track of which transformation | |
91 | // Int_t fNmodules | |
92 | // The total number of modules | |
593e9459 | 93 | // Int_t fNlayers |
94 | // The number of ITS layers for this geometry. By default this | |
95 | // is 6, but can be modified by the creator function if there are | |
96 | // more layers defined. | |
97 | // | |
023ae34b | 98 | // TArrayI fNlad |
593e9459 | 99 | // A pointer to an array fNlayers long containing the number of |
100 | // ladders for each layer. This array is typically created and filled | |
101 | // by the AliITSgeom creator function. | |
102 | // | |
023ae34b | 103 | // TArrayI fNdet |
593e9459 | 104 | // A pointer to an array fNlayers long containing the number of |
105 | // active detector volumes for each ladder. This array is typically | |
106 | // created and filled by the AliITSgeom creator function. | |
107 | // | |
023ae34b | 108 | // TObjArray fGm containing objects of type AliITSgeomMatrix |
269f57ed | 109 | // A pointer to an array of AliITSgeomMatrix classes. One element |
110 | // per module (detector) in the ITS. AliITSgeomMatrix basicly contains | |
111 | // all of the necessary information about the detector and it's coordinate | |
112 | // transformations. | |
593e9459 | 113 | // |
023ae34b | 114 | // TObjArray fShape containting objects of type AliITSgeom |
593e9459 | 115 | // A pointer to an array of TObjects containing the detailed shape |
116 | // information for each type of detector used in the ITS. For example | |
023ae34b | 117 | // I have created AliITSgeomSPD, AliITSgeomSDD, and |
118 | // AliITSsegmenttionSSD as example structures, derived from TObjects, | |
119 | // to hold the detector information. I would recommend that one element | |
120 | // in each of these structures, that which describes the shape of the | |
121 | // active volume, be one of the ROOT classes derived from TShape. In this | |
122 | // way it would be easy to have the display program display the correct | |
123 | // active ITS volumes. See the example classes AliITSgeomSPD, | |
124 | // AliITSgeomSDD, and AliITSgeomSSD for a more detailed | |
125 | // example. | |
593e9459 | 126 | //////////////////////////////////////////////////////////////////////// |
4ae5bbc4 | 127 | #include <Riostream.h> |
5cf690c1 | 128 | #include <ctype.h> |
8253cd9a | 129 | |
269f57ed | 130 | #include <TRandom.h> |
f77f13c8 | 131 | #include <TSystem.h> |
023ae34b | 132 | #include <TArrayI.h> |
e8189707 | 133 | |
f77f13c8 | 134 | #include "AliITSgeomSPD.h" |
023ae34b | 135 | #include "AliITSgeomSDD.h" |
269f57ed | 136 | #include "AliITSgeomSSD.h" |
023ae34b | 137 | #include "AliITSgeom.h" |
f77f13c8 | 138 | #include "AliLog.h" |
58005f18 | 139 | |
140 | ClassImp(AliITSgeom) | |
141 | ||
85f1e34a | 142 | //______________________________________________________________________ |
023ae34b | 143 | AliITSgeom::AliITSgeom(): |
144 | TObject(), | |
145 | fVersion("GEANT"),// Transformation version. | |
146 | fTrans(0), // Flag to keep track of which transformation | |
147 | fNmodules(0), // The total number of modules | |
148 | fNlayers(0), // The number of layers. | |
149 | fNlad(), //[] Array of the number of ladders/layer(layer) | |
150 | fNdet(), //[] Array of the number of detector/ladder(layer) | |
151 | fGm(0,0), // Structure of translation. and rotation. | |
152 | fShape(0,0) // Array of shapes and detector information. | |
153 | { | |
85f1e34a | 154 | // The default constructor for the AliITSgeom class. It, by default, |
155 | // sets fNlayers to zero and zeros all pointers. | |
156 | // Do not allocate anything zero everything. | |
023ae34b | 157 | // Inputs: |
158 | // none. | |
159 | // Outputs: | |
160 | // none. | |
161 | // Return: | |
162 | // a zeroed AliITSgeom object. | |
85f1e34a | 163 | |
023ae34b | 164 | fGm.SetOwner(kTRUE); |
165 | fShape.SetOwner(kTRUE); | |
8253cd9a | 166 | return; |
167 | } | |
e56160b8 | 168 | |
85f1e34a | 169 | //______________________________________________________________________ |
023ae34b | 170 | AliITSgeom::AliITSgeom(Int_t itype,Int_t nlayers,const Int_t *nlads, |
171 | const Int_t *ndets,Int_t mods): | |
172 | TObject(), | |
173 | fVersion("GEANT"), // Transformation version. | |
174 | fTrans(itype), // Flag to keep track of which transformation | |
175 | fNmodules(mods), // The total number of modules | |
176 | fNlayers(nlayers), // The number of layers. | |
177 | fNlad(nlayers,nlads),//[] Array of the number of ladders/layer(layer) | |
178 | fNdet(nlayers,ndets),//[] Array of the number of detector/ladder(layer) | |
179 | fGm(mods,0), // Structure of translation. and rotation. | |
180 | fShape(5,0) // Array of shapes and detector information. | |
181 | { | |
85f1e34a | 182 | // A simple constructor to set basic geometry class variables |
183 | // Inputs: | |
023ae34b | 184 | // Int_t itype the type of transformation kept. |
185 | // bit 0 => Standard GEANT | |
186 | // bit 1 => ITS tracking | |
187 | // bit 2 => A change in the coordinate system has been made. | |
188 | // others are still to be defined as needed. | |
189 | // Int_t nlayers The number of ITS layers also set the size of the arrays | |
190 | // Int_t *nlads an array of the number of ladders for each layer. This | |
191 | // array must be nlayers long. | |
192 | // Int_t *ndets an array of the number of detectors per ladder for each | |
193 | // layer. This array must be nlayers long. | |
194 | // Int_t mods The number of modules. Typically the sum of all the | |
195 | // detectors on every layer and ladder. | |
85f1e34a | 196 | // Outputs: |
023ae34b | 197 | // none |
198 | // Return: | |
199 | // A properly inilized AliITSgeom object. | |
200 | ||
201 | fGm.SetOwner(kTRUE); | |
202 | fShape.SetOwner(kTRUE); | |
203 | return; | |
204 | } | |
205 | //______________________________________________________________________ | |
206 | void AliITSgeom::Init(Int_t itype,Int_t nlayers,const Int_t *nlads, | |
207 | const Int_t *ndets,Int_t mods){ | |
208 | // A simple Inilizer to set basic geometry class variables | |
209 | // Inputs: | |
210 | // Int_t itype the type of transformation kept. | |
211 | // bit 0 => Standard GEANT | |
212 | // bit 1 => ITS tracking | |
213 | // bit 2 => A change in the coordinate system has been made. | |
214 | // others are still to be defined as needed. | |
215 | // Int_t nlayers The number of ITS layers also set the size of the arrays | |
216 | // Int_t *nlads an array of the number of ladders for each layer. This | |
217 | // array must be nlayers long. | |
218 | // Int_t *ndets an array of the number of detectors per ladder for each | |
219 | // layer. This array must be nlayers long. | |
220 | // Int_t mods The number of modules. Typically the sum of all the | |
221 | // detectors on every layer and ladder. | |
222 | // Outputs: | |
223 | // none | |
224 | // Return: | |
225 | // A properly inilized AliITSgeom object. | |
8253cd9a | 226 | |
023ae34b | 227 | fVersion = "GEANT"; // Transformation version. |
228 | fTrans = itype; // Flag to keep track of which transformation | |
229 | fNmodules = mods; // The total number of modules | |
230 | fNlayers = nlayers; // The number of layers. | |
231 | fNlad.Set(nlayers,nlads);//[] Array of the number of ladders/layer(layer) | |
232 | fNdet.Set(nlayers,ndets);//[] Array of the number of detector/ladder(layer) | |
233 | fGm.Clear(); | |
234 | fGm.Expand(mods); // Structure of translation. and rotation. | |
235 | fGm.SetOwner(kTRUE); | |
236 | fShape.Clear(); | |
237 | fShape.Expand(5); // Array of shapes and detector information. | |
238 | fShape.SetOwner(kTRUE); | |
8253cd9a | 239 | return; |
58005f18 | 240 | } |
8253cd9a | 241 | //______________________________________________________________________ |
023ae34b | 242 | void AliITSgeom::CreateMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det, |
243 | AliITSDetector idet,const Double_t tran[3], | |
244 | const Double_t rot[10]){ | |
85f1e34a | 245 | // Given the translation vector tran[3] and the rotation matrix rot[1], |
246 | // this function creates and adds to the TObject Array fGm the | |
247 | // AliITSgeomMatrix object. | |
85f1e34a | 248 | // The rot[10] matrix is set up like: |
249 | /* / rot[0] rot[1] rot[2] \ | |
250 | // | rot[3] rot[4] rot[5] | | |
251 | // \ rot[6] rot[7] rot[8] / if(rot[9]!=0) then the Identity matrix | |
252 | // is used regardless of the values in rot[0]-rot[8]. | |
253 | */ | |
023ae34b | 254 | // Inputs: |
255 | // Int_t mod The module number. The location in TObjArray | |
256 | // Int_t lay The layer where this module is | |
257 | // Int_t lad On which ladder this module is | |
258 | // Int_t det Which detector on this ladder this module is | |
259 | // AliITSDetector idet The type of detector see AliITSgeom.h | |
260 | // Double_t tran[3] The translation vector | |
261 | // Double_t rot[10] The rotation matrix. | |
262 | // Outputs: | |
263 | // none | |
264 | // Return: | |
265 | // none. | |
8253cd9a | 266 | Int_t id[3]; |
267 | Double_t r[3][3] = {{1.0,0.0,0.0},{0.0,1.0,0.0},{0.0,0.0,1.0}}; | |
58005f18 | 268 | |
023ae34b | 269 | if(mod<0||mod>=fGm.GetSize()){ |
270 | Error("CreateMatrix","mod=%d is out of bounds max value=%d",mod, | |
271 | fGm.GetSize()); | |
272 | return; | |
273 | } // end if | |
274 | delete fGm.At(mod); | |
8253cd9a | 275 | id[0] = lay; id[1] = lad; id[2] = det; |
276 | if(rot[9]!=0.0) { // null rotation | |
023ae34b | 277 | r[0][0] = rot[0]; r[0][1] = rot[1]; r[0][2] = rot[2]; |
278 | r[1][0] = rot[3]; r[1][1] = rot[4]; r[1][2] = rot[5]; | |
279 | r[2][0] = rot[6]; r[2][1] = rot[7]; r[2][2] = rot[8]; | |
8253cd9a | 280 | } // end if |
023ae34b | 281 | fGm.AddAt(new AliITSgeomMatrix(idet,id,r,tran),mod); |
8253cd9a | 282 | } |
85f1e34a | 283 | //______________________________________________________________________ |
58005f18 | 284 | AliITSgeom::~AliITSgeom(){ |
85f1e34a | 285 | // The destructor for the AliITSgeom class. If the arrays fNlad, |
286 | // fNdet, or fGm have had memory allocated to them, there pointer values | |
287 | // are non zero, then this memory space is freed and they are set | |
288 | // to zero. In addition, fNlayers is set to zero. The destruction of | |
289 | // TObjArray fShape is, by default, handled by the TObjArray destructor. | |
023ae34b | 290 | // Inputs: |
291 | // none. | |
292 | // Outputs: | |
293 | // none. | |
294 | // Return: | |
295 | // none. | |
85f1e34a | 296 | |
023ae34b | 297 | return; |
58005f18 | 298 | } |
269f57ed | 299 | //______________________________________________________________________ |
300 | void AliITSgeom::ReadNewFile(const char *filename){ | |
023ae34b | 301 | // It is generally preferred to define the geometry in AliITSgeom |
85f1e34a | 302 | // directly from the GEANT geometry, see AliITSvPPRasymm.cxx for |
303 | // and example. Under some circumstances this may not be possible. | |
304 | // This function will read in a formatted file for all of the | |
305 | // information needed to define the geometry in AliITSgeom. | |
306 | // Unlike the older file format, this file may contain comments | |
307 | // and the order of the data does not need to be completely | |
308 | // respected. A file can be created using the function WriteNewFile | |
309 | // defined below. | |
023ae34b | 310 | // Inputs: |
311 | // const char *filename The file name of the file to be read in. | |
312 | // Outputs: | |
313 | // none | |
314 | // Return: | |
315 | // none. | |
8253cd9a | 316 | Int_t ncmd=9; |
5c9c741e | 317 | const char *cmda[]={"Version" ,"fTrans" ,"fNmodules", |
318 | "fNlayers" ,"fNladers","fNdetectors", | |
319 | "fNDetectorTypes","fShape" ,"Matrix"}; | |
8253cd9a | 320 | Int_t i,j,lNdetTypes,ldet; |
321 | char cmd[20],c; | |
164da35c | 322 | AliITSgeomMatrix *m=0; |
323 | ifstream *fp=0; | |
324 | char *filtmp=0; | |
023ae34b | 325 | Bool_t arrayGm = kFALSE, arrayShape = kFALSE; |
8253cd9a | 326 | |
327 | filtmp = gSystem->ExpandPathName(filename); | |
f77f13c8 | 328 | AliInfo(Form("Reading New .det file %s",filtmp)); |
8253cd9a | 329 | fp = new ifstream(filtmp,ios::in); // open file to write |
330 | while(fp->get(c)!=NULL){ // for ever loop | |
023ae34b | 331 | if(c==' ') continue; // remove blanks |
332 | if(c=='\n') continue; | |
333 | if(c=='#' || c=='!') {while(fp->get(c)) if(c=='\n') break; continue;} | |
334 | if(c=='/'){ | |
335 | fp->get(c);{ | |
336 | if(c=='/') {while(fp->get(c)) if(c=='\n') break; continue;} | |
337 | if(c=='*'){ | |
338 | NotYet: | |
339 | while(fp->get(c)) if(c=='*') break; | |
340 | fp->get(c);{ | |
341 | if(c=='/') continue; | |
342 | goto NotYet; | |
343 | } // | |
344 | } // end if c=='*' | |
345 | } // end if second / | |
346 | } // end if first / | |
347 | fp->putback(c); | |
348 | *fp >> cmd; | |
349 | for(i=0;i<ncmd;i++) if(strcmp(cmd,cmda[i])==0) break; | |
350 | switch (i){ | |
351 | case 0: // Version | |
5cf690c1 | 352 | while(isspace(fp->peek())) fp->get(); // skip spaces |
353 | if(isdigit(fp->peek())){ // new TString | |
354 | *fp >> j; | |
355 | fVersion.Resize(j); | |
356 | for(j=0;j<fVersion.Length();j++) *fp >> fVersion[j]; | |
357 | }else{ | |
358 | fVersion.Resize(20); | |
359 | for(j=0;isprint(fp->peek())&&j<20;j++) *fp >> fVersion[j]; | |
360 | } // end if isdigit | |
023ae34b | 361 | break; |
362 | case 1: // fTrans | |
363 | *fp >> fTrans; | |
364 | break; | |
365 | case 2: // fNModules | |
366 | *fp >> fNmodules; | |
367 | fGm.Clear(); | |
368 | fGm.Expand(fNmodules); | |
369 | fGm.SetOwner(kTRUE); | |
370 | arrayGm = kTRUE; | |
371 | break; | |
372 | case 3: // fNlayers | |
373 | *fp >> fNlayers; | |
374 | fNlad.Set(fNlayers); | |
375 | fNdet.Set(fNlayers); | |
376 | break; | |
377 | case 4: // fNladers | |
378 | for(j=0;j<fNlayers;j++) *fp >> fNlad[j]; | |
379 | break; | |
380 | case 5: // fNdetectors | |
381 | for(j=0;j<fNlayers;j++) *fp >> fNdet[j]; | |
382 | break; | |
383 | case 6: // fNDetectorTypes | |
384 | *fp >> lNdetTypes; | |
385 | fShape.Clear(); | |
386 | fShape.Expand(lNdetTypes); | |
387 | fShape.SetOwner(kTRUE); | |
388 | arrayShape = kTRUE; | |
389 | break; | |
390 | case 7: // fShape | |
391 | *fp >> ldet; | |
392 | if(!arrayShape) fShape.Expand(5); | |
393 | fShape.SetOwner(kTRUE); | |
394 | switch (ldet){ | |
395 | case kSPD :{ | |
396 | AliITSgeomSPD *spd = new AliITSgeomSPD(); | |
397 | *fp >> *spd; | |
398 | ReSetShape(ldet,spd); | |
399 | } break; | |
400 | case kSDD : case kSDDp:{ | |
401 | AliITSgeomSDD *sdd = new AliITSgeomSDD(); | |
402 | *fp >> *sdd; | |
403 | ReSetShape(ldet,sdd); | |
404 | }break; | |
405 | case kSSD : case kSSDp :{ | |
406 | AliITSgeomSSD *ssd = new AliITSgeomSSD(); | |
407 | *fp >> *ssd; | |
408 | ReSetShape(ldet,ssd); | |
409 | }break; | |
410 | default:{ | |
411 | AliError(Form("Unknown fShape type number=%d c=%c",ldet,c)); | |
412 | while(fp->get(c)) if(c=='\n') break; // skip to end of line. | |
413 | }break; | |
414 | } // end switch | |
415 | break; | |
416 | case 8: // Matrix | |
417 | *fp >> ldet; | |
418 | if(!arrayGm){ | |
419 | fGm.Clear(); | |
420 | fGm.Expand(2270); | |
421 | arrayGm = kTRUE; | |
422 | } // end if | |
423 | if(ldet<0||ldet>=fGm.GetSize()){ | |
424 | Error("ReadNewFile","ldet<0||ldet>=fGm.GetSize()=%d", | |
425 | ldet,fGm.GetSize()); | |
426 | return; | |
8253cd9a | 427 | } // end if |
023ae34b | 428 | delete fGm.At(ldet); |
429 | fGm.AddAt((TObject*)new AliITSgeomMatrix(),ldet); | |
430 | m = (AliITSgeomMatrix*) fGm.At(ldet); | |
431 | *fp >> *m; | |
432 | m = 0; | |
433 | break; | |
434 | default: | |
435 | AliError(Form("ReadNewFile","Data line i=%d c=%c",i,c)); | |
436 | while(fp->get(c)) if(c=='\n') break; // skip this line | |
437 | break; | |
438 | } // end switch i | |
8253cd9a | 439 | } // end while |
440 | delete fp; | |
441 | ||
442 | return; | |
443 | } | |
444 | //______________________________________________________________________ | |
5cf690c1 | 445 | void AliITSgeom::WriteNewFile(const char *filename)const{ |
023ae34b | 446 | // Writes AliITSgeom, AliITSgeomMatrix, and the defined |
447 | // AliITSgeomS*D classes to a file in a format that | |
448 | // is more readable and commendable. | |
449 | // Inputs: | |
450 | // const char *filename The file name of the file to be write to. | |
451 | // Outputs: | |
452 | // none | |
453 | // Return: | |
454 | // none | |
8253cd9a | 455 | ofstream *fp; |
456 | Int_t i; | |
457 | char *filtmp; | |
458 | ||
459 | filtmp = gSystem->ExpandPathName(filename); | |
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; | |
023ae34b | 469 | *fp << "Version "<< fVersion.Length()<<" " << fVersion.Data() << endl;//This should be consistent |
470 | // with the geometry version. | |
8253cd9a | 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; | |
023ae34b | 480 | *fp << "fNDetectorTypes " << fShape.GetEntriesFast() << endl; |
481 | for(i=0;i<fShape.GetEntriesFast();i++){ | |
8253cd9a | 482 | if(!IsShapeDefined(i)) continue; // only print out used shapes. |
483 | switch (i){ | |
484 | case kSPD : | |
485 | *fp << "fShape " << (Int_t) kSPD << " "; | |
023ae34b | 486 | *fp << *((AliITSgeomSPD*)(fShape.At(i))); |
8253cd9a | 487 | break; |
488 | case kSDD : | |
489 | *fp << "fShape " << (Int_t) kSDD << " "; | |
023ae34b | 490 | *fp << *((AliITSgeomSDD*)(fShape.At(i))); |
8253cd9a | 491 | break; |
492 | case kSSD : case kSSDp : | |
493 | *fp << "fShape " << i << " "; | |
023ae34b | 494 | *fp << *((AliITSgeomSSD*)(fShape.At(i))); |
8253cd9a | 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 | //______________________________________________________________________ |
023ae34b | 510 | AliITSgeom::AliITSgeom(const char *filename): |
511 | TObject(), | |
512 | fVersion("test"),// Transformation version. | |
513 | fTrans(0), // Flag to keep track of which transformation | |
514 | fNmodules(0), // The total number of modules | |
515 | fNlayers(0), // The number of layers. | |
516 | fNlad(), // TArrayI of the number of ladders/layer(layer) | |
517 | fNdet(), // TArrayI of the number of detector/ladder(layer) | |
518 | fGm(0,0), // TObjArray Structure of translation. and rotation. | |
519 | fShape(0,0) // TObjArray of detector geom. | |
520 | { | |
85f1e34a | 521 | // The constructor for the AliITSgeom class. All of the data to fill |
522 | // this structure is read in from the file given my the input filename. | |
023ae34b | 523 | // Inputs: |
524 | // const char *filename The file name of the file to be read in. | |
525 | // Outputs: | |
526 | // none | |
527 | // Return: | |
528 | // An AliITSgeom class initialized from a file. | |
85f1e34a | 529 | FILE *pf=0; |
530 | Int_t i,lm=0,id[3]; | |
531 | Int_t l,a,d; | |
532 | Float_t x,y,z,o,p,q,r,s,t; | |
533 | Double_t rot6[6],tran[3]; | |
534 | char buf[200],*buff=0; // input character buffer; | |
023ae34b | 535 | char *filtmp; |
58005f18 | 536 | |
85f1e34a | 537 | filtmp = gSystem->ExpandPathName(filename); |
023ae34b | 538 | Info("AliITSgeom","reading old .det file %s",filtmp); |
539 | fVersion="GEANT5"; | |
85f1e34a | 540 | pf = fopen(filtmp,"r"); |
541 | ||
542 | fNlayers = 6; // set default number of ladders | |
023ae34b | 543 | TryAgain: |
544 | fNlad.Set(fNlayers); | |
545 | fNdet.Set(fNlayers); | |
85f1e34a | 546 | fNmodules = 0; |
547 | // find the number of ladders and detectors in this geometry. | |
548 | for(i=0;i<fNlayers;i++){fNlad[i]=fNdet[i]=0;} // zero out arrays | |
549 | while(fgets(buf,200,pf)!=NULL){ // for ever loop | |
023ae34b | 550 | for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces. |
551 | buff = &(buf[i]); | |
552 | break; | |
553 | } // end for i | |
554 | // remove blank lines and comments. | |
555 | if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'|| | |
556 | (buff[0]=='/'&&buff[1]=='/')) continue; | |
557 | if(isalpha(buff[0])) { // must be the new file formated file. | |
269f57ed | 558 | fclose(pf); |
269f57ed | 559 | ReadNewFile(filename); |
560 | return; | |
023ae34b | 561 | } // end if isalpha(buff[0]) |
562 | sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f", | |
563 | &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t); | |
564 | if(l>lm) lm = l; | |
565 | if(l<1 || l>fNlayers) { | |
5cf690c1 | 566 | printf("error in file %s layer=%d min. is 1 max is %d Trying new format\n", |
023ae34b | 567 | filename,l,fNlayers); |
5cf690c1 | 568 | fclose(pf); |
569 | ReadNewFile(filename); | |
570 | return; | |
571 | //continue; | |
023ae34b | 572 | }// end if l |
573 | fNmodules++; | |
574 | if(l<=fNlayers&&fNlad[l-1]<a) fNlad[l-1] = a; | |
575 | if(l<=fNlayers&&fNdet[l-1]<d) fNdet[l-1] = d; | |
85f1e34a | 576 | } // end while ever loop |
577 | if(lm>fNlayers){ | |
023ae34b | 578 | fNlayers = lm; |
579 | goto TryAgain; | |
85f1e34a | 580 | } // end if lm>fNlayers |
581 | // counted the number of ladders and detectors now allocate space. | |
023ae34b | 582 | fGm.Expand(fNmodules); |
583 | fGm.SetOwner(kTRUE); | |
584 | fShape.SetOwner(kTRUE); | |
58005f18 | 585 | |
85f1e34a | 586 | // Set up Shapes for a default configuration of 6 layers. |
587 | fTrans = 0; // standard GEANT global/local coordinate system. | |
588 | // prepare to read in transforms | |
589 | lm = 0; // reuse lm as counter of modules. | |
590 | rewind(pf); // start over reading file | |
591 | while(fgets(buf,200,pf)!=NULL){ // for ever loop | |
023ae34b | 592 | for(i=0;i<200;i++)if(buf[i]!=' '){ // remove blank spaces. |
593 | buff = &(buf[i]); | |
594 | break; | |
595 | } // end for i | |
596 | // remove blank lines and comments. | |
597 | if(buff[0]=='\n'||buff[0]=='#'||buff[0]=='!'|| | |
598 | (buff[0]=='/'&&buff[1]=='/')) continue; | |
599 | x = y = z = o = p = q = r = s = t = 0.0; | |
600 | sscanf(buff,"%d %d %d %f %f %f %f %f %f %f %f %f", | |
601 | &l,&a,&d,&x,&y,&z,&o,&p,&q,&r,&s,&t); | |
602 | if(l<1 || l>fNlayers) { | |
603 | Warning("AliITSgeom","error in file %s layer=%d min. is 1 max is %d", | |
604 | filename,l,fNlayers); | |
605 | continue; | |
606 | }// end if l | |
607 | id[0] = l;id[1] = a;id[2] = d; | |
608 | tran[0] = tran[1] = tran[2] = 0.0; | |
609 | tran[0] = (Double_t)x;tran[1] = (Double_t)y;tran[2] = (Double_t)z; | |
610 | rot6[0] = rot6[1] = rot6[2] = rot6[3] = rot6[4] = rot6[5] =0.0; | |
611 | rot6[0] = (Double_t)o;rot6[1] = (Double_t)p;rot6[2] = (Double_t)q; | |
612 | rot6[3] = (Double_t)r;rot6[4] = (Double_t)s;rot6[5] = (Double_t)t; | |
613 | if(lm<0||lm>=fGm.GetSize()){ | |
614 | Error("AliITSgeom(filename)","lm<0||lm>=fGm.GetSize()=%d", | |
615 | lm,fGm.GetSize()); | |
616 | return; | |
617 | } // end if | |
618 | switch (l){ | |
619 | case 1: case 2: // layer 1 or2 SPD | |
620 | fGm.AddAt(new AliITSgeomMatrix(rot6,kSPD,id,tran),lm++); | |
621 | break; | |
622 | case 3: case 4: // layer 3 or 4 SDD | |
623 | fGm.AddAt(new AliITSgeomMatrix(rot6,kSDD,id,tran),lm++); | |
624 | break; | |
625 | case 5: case 6: // layer 5 or 6 SSD | |
626 | fGm.AddAt(new AliITSgeomMatrix(rot6,kSSD,id,tran),lm++); | |
627 | break; | |
628 | } // end switch | |
85f1e34a | 629 | } // end while ever loop |
630 | fclose(pf); | |
58005f18 | 631 | } |
5613046a | 632 | |
85f1e34a | 633 | //______________________________________________________________________ |
e56160b8 | 634 | AliITSgeom::AliITSgeom(const AliITSgeom &source) : TObject(source), |
635 | fVersion(source.fVersion), | |
636 | fTrans(source.fTrans), | |
637 | fNmodules(source.fNmodules), | |
638 | fNlayers(source.fNlayers), | |
639 | fNlad(source.fNlad), | |
640 | fNdet(source.fNdet), | |
641 | fGm(source.fGm), | |
642 | fShape(source.fShape) | |
643 | { | |
85f1e34a | 644 | // The copy constructor for the AliITSgeom class. It calls the |
645 | // = operator function. See the = operator function for more details. | |
023ae34b | 646 | // Inputs: |
647 | // AliITSgeom &source The AliITSgeom class with which to make this | |
648 | // a copy of. | |
649 | // Outputs: | |
650 | // none. | |
651 | // Return: | |
652 | // none. | |
593e9459 | 653 | |
e56160b8 | 654 | *this = source; // Just use the = operator for now. |
655 | return; | |
58005f18 | 656 | } |
5613046a | 657 | |
85f1e34a | 658 | //______________________________________________________________________ |
7f6ab649 | 659 | AliITSgeom& AliITSgeom::operator=(const AliITSgeom &source){ |
85f1e34a | 660 | // The = operator function for the AliITSgeom class. It makes an |
661 | // independent copy of the class in such a way that any changes made | |
662 | // to the copied class will not affect the source class in any way. | |
663 | // This is required for many ITS alignment studies where the copied | |
664 | // class is then modified by introducing some misalignment. | |
023ae34b | 665 | // Inputs: |
666 | // AliITSgeom &source The AliITSgeom class with which to make this | |
667 | // a copy of. | |
668 | // Outputs: | |
669 | // none. | |
670 | // Return: | |
671 | // *this The a new copy of source. | |
672 | Int_t i; | |
58005f18 | 673 | |
023ae34b | 674 | if(this == &source) return *this; // don't assign to ones self. |
58005f18 | 675 | |
023ae34b | 676 | // if there is an old structure allocated delete it first. |
677 | this->fGm.Clear(); | |
678 | this->fShape.Clear(); | |
085bb6ed | 679 | |
023ae34b | 680 | this->fVersion = source.fVersion; |
681 | this->fTrans = source.fTrans; | |
682 | this->fNmodules = source.fNmodules; | |
683 | this->fNlayers = source.fNlayers; | |
684 | this->fNlad.Set(fNlayers,source.fNlad.GetArray()); | |
685 | this->fNdet.Set(fNlayers,source.fNdet.GetArray()); | |
686 | this->fShape.Expand(source.fShape.GetEntriesFast()); | |
687 | for(i=0;i<source.fShape.GetEntriesFast();i++) | |
688 | this->fShape.AddAt(new TObject(*(source.fShape.At(i))),i); | |
689 | this->fShape.SetOwner(kTRUE); | |
690 | this->fGm.Expand(this->fNmodules); | |
691 | this->fGm.SetOwner(kTRUE); | |
692 | for(i=0;i<this->fNmodules;i++) | |
693 | if(i<0||i>=fGm.GetSize()){ | |
694 | Error("ReadNewFile","i<0||i>=fGm.GetSize()=%d", | |
695 | i,fGm.GetSize()); | |
696 | return *this; | |
697 | } // end if | |
698 | this->fGm.AddAt(new TObject(*(source.fGm.At(i))),i); | |
699 | return *this; | |
85f1e34a | 700 | } |
5613046a | 701 | |
85f1e34a | 702 | //______________________________________________________________________ |
5cf690c1 | 703 | Int_t AliITSgeom::GetModuleIndex(Int_t lay,Int_t lad,Int_t det)const{ |
85f1e34a | 704 | // This routine computes the module index number from the layer, |
705 | // ladder, and detector numbers. The number of ladders and detectors | |
706 | // per layer is determined when this geometry package is constructed, | |
707 | // see AliITSgeom(const char *filename) for specifics. | |
023ae34b | 708 | // Inputs: |
709 | // Int_t lay The layer number. Starting from 1. | |
710 | // Int_t lad The ladder number. Starting from 1. | |
711 | // Int_t det The detector number. Starting from 1. | |
712 | // Outputs: | |
713 | // none. | |
714 | // Return: | |
715 | // the module index number, starting from zero. | |
269f57ed | 716 | Int_t i,j,k,id[3]; |
593e9459 | 717 | |
718 | i = fNdet[lay-1] * (lad-1) + det - 1; | |
719 | j = 0; | |
720 | for(k=0;k<lay-1;k++) j += fNdet[k]*fNlad[k]; | |
269f57ed | 721 | i = i+j; |
7e932df0 | 722 | if(i>=fNmodules) return -1; |
8253cd9a | 723 | GetGeomMatrix(i)->GetIndex(id); |
269f57ed | 724 | if(id[0]==lay&&id[1]==lad&&id[2]==det) return i; |
725 | // Array of modules fGm is not in expected order. Search for this index | |
726 | for(i=0;i<fNmodules;i++){ | |
023ae34b | 727 | GetGeomMatrix(i)->GetIndex(id); |
728 | if(id[0]==lay&&id[1]==lad&&id[2]==det) return i; | |
269f57ed | 729 | } // end for i |
730 | // This layer ladder and detector combination does not exist return -1. | |
731 | return -1; | |
593e9459 | 732 | } |
269f57ed | 733 | //______________________________________________________________________ |
5cf690c1 | 734 | void AliITSgeom::GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det)const{ |
85f1e34a | 735 | // This routine computes the layer, ladder and detector number |
736 | // given the module index number. The number of ladders and detectors | |
737 | // per layer is determined when this geometry package is constructed, | |
738 | // see AliITSgeom(const char *filename) for specifics. | |
023ae34b | 739 | // Inputs: |
740 | // Int_t index The module index number, starting from zero. | |
741 | // Outputs: | |
742 | // Int_t lay The layer number. Starting from 1. | |
743 | // Int_t lad The ladder number. Starting from 1. | |
744 | // Int_t det The detector number. Starting from 1. | |
745 | // Return: | |
746 | // none. | |
269f57ed | 747 | Int_t id[3]; |
88cb7938 | 748 | AliITSgeomMatrix *g = GetGeomMatrix(index); |
269f57ed | 749 | |
023ae34b | 750 | if (g == 0x0){ |
751 | Error("GetModuleId","Can not get GeoMatrix for index = %d",index); | |
752 | lay = -1; lad = -1; det = -1; | |
753 | }else{ | |
754 | g->GetIndex(id); | |
755 | lay = id[0]; lad = id[1]; det = id[2]; | |
756 | }// End if | |
757 | return; | |
269f57ed | 758 | // The old way kept for posterity. |
759 | /* | |
760 | Int_t i,j,k; | |
593e9459 | 761 | j = 0; |
762 | for(k=0;k<fNlayers;k++){ | |
58005f18 | 763 | j += fNdet[k]*fNlad[k]; |
aa6248e2 | 764 | if(j>index)break; |
58005f18 | 765 | } // end for k |
766 | lay = k+1; | |
767 | i = index -j + fNdet[k]*fNlad[k]; | |
768 | j = 0; | |
769 | for(k=0;k<fNlad[lay-1];k++){ | |
aa6248e2 | 770 | j += fNdet[lay-1]; |
771 | if(j>i)break; | |
58005f18 | 772 | } // end for k |
773 | lad = k+1; | |
774 | det = 1+i-fNdet[lay-1]*k; | |
775 | return; | |
269f57ed | 776 | */ |
58005f18 | 777 | } |
85f1e34a | 778 | //______________________________________________________________________ |
5cf690c1 | 779 | Int_t AliITSgeom::GetNDetTypes(Int_t &max)const{ |
023ae34b | 780 | // Finds and returns the number of detector types used and the |
781 | // maximum detector type value. Only counts id >=0 (no undefined | |
782 | // values. See AliITSgeom.h for list of AliITSDetecor enumerated types. | |
783 | // Inputs: | |
784 | // none. | |
785 | // Outputs: | |
786 | // The maximum detector type used | |
787 | // Return: | |
788 | // The number of detector types used | |
789 | Int_t i,*n,id; | |
790 | ||
791 | max = -1; | |
792 | for(i=0;i<GetIndexMax();i++){ | |
793 | id = GetModuleType(i); | |
794 | if(id>max) max=id; | |
795 | } // end for i | |
796 | n = new Int_t[max+1]; | |
797 | for(i=0;i<max;i++) n[i] = 0; | |
798 | for(i=0;i<GetIndexMax();i++){ | |
799 | id = GetModuleType(i); | |
800 | if(id>-1)n[id]++; // note id=-1 => undefined. | |
801 | } // end for i | |
802 | id = 0; | |
803 | for(i=0;i<max;i++) if(n[i]!=0) id++; | |
804 | delete[] n; | |
805 | return id+1; | |
806 | } | |
807 | //______________________________________________________________________ | |
5cf690c1 | 808 | Int_t AliITSgeom::GetNDetTypes(TArrayI &maxs,AliITSDetector *types)const{ |
023ae34b | 809 | // Finds and returns the number of detector types used and the |
810 | // number of each detector type. Only counts id >=0 (no undefined | |
811 | // values. See AliITSgeom.h for list of AliITSDetecor enumerated types. | |
812 | // Inputs: | |
813 | // none. | |
814 | // Outputs: | |
815 | // The maximum detector type used | |
816 | // Return: | |
817 | // The number of detector types used | |
818 | Int_t i,j,*n,id,max; | |
819 | ||
820 | max = -1; | |
821 | for(i=0;i<GetIndexMax();i++){ | |
822 | id = GetModuleType(i); | |
823 | if(id>max) max=id; | |
824 | } // end for i | |
825 | n = new Int_t[max+1]; | |
826 | for(i=0;i<max;i++) n[i] = 0; | |
827 | for(i=0;i<GetIndexMax();i++){ | |
828 | id = GetModuleType(i); | |
829 | if(id>-1)n[id]++; // note id=-1 => undefined. | |
830 | } // end for i | |
831 | id = 0; | |
832 | for(i=0;i<=max;i++) if(n[i]!=0) id++; | |
833 | maxs.Set(id); | |
834 | j = 0; | |
835 | for(i=0;i<=max;i++) if(n[i]!=0){ | |
836 | maxs[j] = n[i]; | |
837 | types[j++] = (AliITSDetector) i; | |
838 | } // end for i/end if | |
839 | delete[] n; | |
840 | return id; | |
841 | } | |
842 | //______________________________________________________________________ | |
5cf690c1 | 843 | Int_t AliITSgeom::GetStartDet(Int_t dtype)const{ |
85f1e34a | 844 | // returns the starting module index value for a give type of detector id. |
845 | // This assumes that the detector types are different on different layers | |
846 | // and that they are not mixed up. | |
023ae34b | 847 | // Inputs: |
848 | // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD. | |
849 | // Outputs: | |
850 | // none. | |
851 | // Return: | |
852 | // the module index for the first occurrence of that detector type. | |
85f1e34a | 853 | |
854 | switch(dtype){ | |
855 | case 0: | |
023ae34b | 856 | return GetModuleIndex(1,1,1); |
857 | break; | |
85f1e34a | 858 | case 1: |
023ae34b | 859 | return GetModuleIndex(3,1,1); |
860 | break; | |
85f1e34a | 861 | case 2: |
023ae34b | 862 | return GetModuleIndex(5,1,1); |
863 | break; | |
85f1e34a | 864 | default: |
023ae34b | 865 | Warning("GetStartDet","undefined detector type %d",dtype); |
866 | return 0; | |
85f1e34a | 867 | } // end switch |
868 | ||
869 | Warning("GetStartDet","undefined detector type %d",dtype); | |
870 | return 0; | |
085bb6ed | 871 | } |
85f1e34a | 872 | //______________________________________________________________________ |
5cf690c1 | 873 | Int_t AliITSgeom::GetLastDet(Int_t dtype)const{ |
85f1e34a | 874 | // returns the last module index value for a give type of detector id. |
875 | // This assumes that the detector types are different on different layers | |
876 | // and that they are not mixed up. | |
023ae34b | 877 | // Inputs: |
878 | // Int_t dtype A detector type number. 0 for SPD, 1 for SDD, and 2 for SSD. | |
879 | // Outputs: | |
880 | // Return: | |
881 | // the module index for the last occurrence of that detector type. | |
85f1e34a | 882 | |
a1e4be5b | 883 | switch((AliITSDetector)dtype){ |
884 | case kSPD: | |
885 | return GetModuleIndex(3,1,1)-1; | |
023ae34b | 886 | break; |
a1e4be5b | 887 | case kSDD: |
888 | return GetModuleIndex(5,1,1)-1; | |
023ae34b | 889 | break; |
a1e4be5b | 890 | case kSSD: |
e8d3012e | 891 | return GetIndexMax()-1; |
023ae34b | 892 | break; |
a1e4be5b | 893 | case kSSDp: case kSDDp: case kND: |
85f1e34a | 894 | default: |
023ae34b | 895 | Warning("GetLastDet","undefined detector type %d",dtype); |
896 | return 0; | |
85f1e34a | 897 | } // end switch |
898 | ||
899 | Warning("GetLastDet","undefined detector type %d",dtype); | |
900 | return 0; | |
085bb6ed | 901 | } |
85f1e34a | 902 | //______________________________________________________________________ |
5cf690c1 | 903 | void AliITSgeom::PrintComparison(FILE *fp,AliITSgeom *other)const{ |
85f1e34a | 904 | // This function was primarily created for diagnostic reasons. It |
905 | // print to a file pointed to by the file pointer fp the difference | |
023ae34b | 906 | // between two AliITSgeom classes. The format of the file is basically, |
85f1e34a | 907 | // define d? to be the difference between the same element of the two |
908 | // classes. For example dfrx = this->GetGeomMatrix(i)->frx | |
909 | // - other->GetGeomMatrix(i)->frx. | |
910 | // if(at least one of dfx0, dfy0, dfz0,dfrx,dfry,dfrz are non zero) then | |
911 | // print layer ladder detector dfx0 dfy0 dfz0 dfrx dfry dfrz | |
912 | // if(at least one of the 9 elements of dfr[] are non zero) then print | |
913 | // layer ladder detector dfr[0] dfr[1] dfr[2] | |
914 | // dfr[3] dfr[4] dfr[5] | |
915 | // dfr[6] dfr[7] dfr[8] | |
916 | // Only non zero values are printed to save space. The differences are | |
917 | // typical written to a file because there are usually a lot of numbers | |
918 | // printed out and it is usually easier to read them in some nice editor | |
919 | // rather than zooming quickly past you on a screen. fprintf is used to | |
920 | // do the printing. The fShapeIndex difference is not printed at this time. | |
023ae34b | 921 | // Inputs: |
922 | // FILE *fp A file pointer to an opened file for writing in which | |
923 | // the results of the comparison will be written. | |
924 | // AliITSgeom *other The other AliITSgeom class to which this one is | |
925 | // being compared. | |
926 | // Outputs: | |
927 | // none. | |
928 | // Return: | |
929 | // none. | |
85f1e34a | 930 | Int_t i,j,idt[3],ido[3]; |
931 | Double_t tt[3],to[3]; // translation | |
932 | Double_t rt[3],ro[3]; // phi in radians | |
023ae34b | 933 | Double_t mt[3][3],mo[3][3]; // matrices |
85f1e34a | 934 | AliITSgeomMatrix *gt,*go; |
935 | Bool_t t; | |
936 | ||
937 | for(i=0;i<this->fNmodules;i++){ | |
023ae34b | 938 | gt = this->GetGeomMatrix(i); |
939 | go = other->GetGeomMatrix(i); | |
940 | gt->GetIndex(idt); | |
941 | go->GetIndex(ido); | |
942 | t = kFALSE; | |
943 | for(i=0;i<3;i++) t = t&&idt[i]!=ido[i]; | |
944 | if(t) fprintf(fp,"%4.4d %1.1d %2.2d %2.2d %1.1d %2.2d %2.2d\n",i, | |
945 | idt[0],idt[1],idt[2],ido[0],ido[1],ido[2]); | |
946 | gt->GetTranslation(tt); | |
947 | go->GetTranslation(to); | |
948 | gt->GetAngles(rt); | |
949 | go->GetAngles(ro); | |
950 | t = kFALSE; | |
951 | for(i=0;i<3;i++) t = t&&tt[i]!=to[i]; | |
952 | if(t) fprintf(fp,"%1.1d %2.2d %2.2d dTrans=%f %f %f drot=%f %f %f\n", | |
953 | idt[0],idt[1],idt[2], | |
954 | tt[0]-to[0],tt[1]-to[1],tt[2]-to[2], | |
955 | rt[0]-ro[0],rt[1]-ro[1],rt[2]-ro[2]); | |
956 | t = kFALSE; | |
957 | gt->GetMatrix(mt); | |
958 | go->GetMatrix(mo); | |
959 | for(i=0;i<3;i++)for(j=0;j<3;j++) t = mt[i][j] != mo[i][j]; | |
960 | if(t){ | |
961 | fprintf(fp,"%1.1d %2.2d %2.2d dfr= %e %e %e\n", | |
962 | idt[0],idt[1],idt[2], | |
963 | mt[0][0]-mo[0][0],mt[0][1]-mo[0][1],mt[0][2]-mo[0][2]); | |
964 | fprintf(fp," dfr= %e %e %e\n", | |
965 | mt[1][0]-mo[1][0],mt[1][1]-mo[1][1],mt[1][2]-mo[1][2]); | |
966 | fprintf(fp," dfr= %e %e %e\n", | |
967 | mt[2][0]-mo[2][0],mt[2][1]-mo[2][1],mt[2][2]-mo[2][2]); | |
968 | } // end if t | |
85f1e34a | 969 | } // end for i |
970 | return; | |
58005f18 | 971 | } |
85f1e34a | 972 | //______________________________________________________________________ |
5cf690c1 | 973 | void AliITSgeom::PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det)const{ |
85f1e34a | 974 | // This function prints out the coordinate transformations for |
975 | // the particular detector defined by layer, ladder, and detector | |
976 | // to the file pointed to by the File pointer fp. fprintf statements | |
977 | // are used to print out the numbers. The format is | |
978 | // layer ladder detector Trans= fx0 fy0 fz0 rot= frx fry frz | |
979 | // Shape=fShapeIndex | |
980 | // dfr= fr[0] fr[1] fr[2] | |
981 | // dfr= fr[3] fr[4] fr[5] | |
982 | // dfr= fr[6] fr[7] fr[8] | |
983 | // By indicating which detector, some control over the information | |
984 | // is given to the user. The output it written to the file pointed | |
985 | // to by the file pointer fp. This can be set to stdout if you want. | |
023ae34b | 986 | // Inputs: |
987 | // FILE *fp A file pointer to an opened file for writing in which | |
988 | // the results of the comparison will be written. | |
989 | // Int_t lay The layer number. Starting from 1. | |
990 | // Int_t lad The ladder number. Starting from 1. | |
991 | // Int_t det The detector number. Starting from 1. | |
992 | // Outputs: | |
993 | // none | |
994 | // Return: | |
995 | // none. | |
85f1e34a | 996 | AliITSgeomMatrix *gt; |
997 | Double_t t[3],r[3],m[3][3]; | |
998 | ||
999 | gt = this->GetGeomMatrix(GetModuleIndex(lay,lad,det)); | |
1000 | gt->GetTranslation(t); | |
1001 | gt->GetAngles(r); | |
1002 | fprintf(fp,"%1.1d %2.2d %2.2d Trans=%f %f %f rot=%f %f %f Shape=%d\n", | |
023ae34b | 1003 | lay,lad,det,t[0],t[1],t[2],r[0],r[1],r[2], |
1004 | gt->GetDetectorIndex()); | |
85f1e34a | 1005 | gt->GetMatrix(m); |
1006 | fprintf(fp," dfr= %e %e %e\n",m[0][0],m[0][1],m[0][2]); | |
1007 | fprintf(fp," dfr= %e %e %e\n",m[1][0],m[1][1],m[1][2]); | |
1008 | fprintf(fp," dfr= %e %e %e\n",m[2][0],m[2][1],m[2][2]); | |
1009 | return; | |
58005f18 | 1010 | } |
85f1e34a | 1011 | //______________________________________________________________________ |
5cf690c1 | 1012 | ofstream & AliITSgeom::PrintGeom(ofstream &rb)const{ |
85f1e34a | 1013 | // Stream out an object of class AliITSgeom to standard output. |
023ae34b | 1014 | // Intputs: |
1015 | // ofstream &rb The output streaming buffer. | |
1016 | // Outputs: | |
1017 | // none. | |
1018 | // Return: | |
1019 | // ofstream &rb The output streaming buffer. | |
1020 | Int_t i,nshapes; | |
593e9459 | 1021 | |
85f1e34a | 1022 | rb.setf(ios::scientific); |
1023 | rb << fTrans << " "; | |
1024 | rb << fNmodules << " "; | |
1025 | rb << fNlayers << " "; | |
1026 | for(i=0;i<fNlayers;i++) rb << fNlad[i] << " "; | |
1027 | for(i=0;i<fNlayers;i++) rb << fNdet[i] << "\n"; | |
269f57ed | 1028 | for(i=0;i<fNmodules;i++) { |
023ae34b | 1029 | rb <<setprecision(16) << *(GetGeomMatrix(i)) << "\n"; |
269f57ed | 1030 | } // end for i |
023ae34b | 1031 | nshapes = fShape.GetEntries(); |
1032 | rb << nshapes <<endl; | |
1033 | for(i=0;i<nshapes;i++) if(fShape.At(i)!=0) switch (i){ | |
164da35c | 1034 | case kSPD: |
023ae34b | 1035 | rb << kSPD <<","<< (AliITSgeomSPD*)(fShape.At(kSPD)); |
1036 | break; | |
164da35c | 1037 | case kSDD: |
023ae34b | 1038 | rb << kSDD <<","<< (AliITSgeomSDD*)(fShape.At(kSDD)); |
1039 | break; | |
164da35c | 1040 | case kSSD: |
023ae34b | 1041 | rb << kSSD <<","<< (AliITSgeomSSD*)(fShape.At(kSSD)); |
1042 | break; | |
164da35c | 1043 | case kSSDp: |
023ae34b | 1044 | rb << kSSDp <<","<< (AliITSgeomSSD*)(fShape.At(kSSDp)); |
1045 | break; | |
164da35c | 1046 | case kSDDp: |
023ae34b | 1047 | rb << kSDDp <<","<< (AliITSgeomSDD*)(fShape.At(kSDDp)); |
1048 | break; | |
164da35c | 1049 | } // end for i / switch |
85f1e34a | 1050 | return rb; |
593e9459 | 1051 | } |
85f1e34a | 1052 | //______________________________________________________________________ |
1053 | ifstream & AliITSgeom::ReadGeom(ifstream &rb){ | |
1054 | // Stream in an object of class AliITSgeom from standard input. | |
023ae34b | 1055 | // Intputs: |
1056 | // ifstream &rb The input streaming buffer. | |
1057 | // Outputs: | |
1058 | // none. | |
1059 | // Return: | |
1060 | // ifstream &rb The input streaming buffer. | |
164da35c | 1061 | Int_t i,j; |
269f57ed | 1062 | |
023ae34b | 1063 | fGm.Clear(); |
85f1e34a | 1064 | |
1065 | rb >> fTrans >> fNmodules >> fNlayers; | |
023ae34b | 1066 | fNlad.Set(fNlayers); |
1067 | fNdet.Set(fNlayers); | |
85f1e34a | 1068 | for(i=0;i<fNlayers;i++) rb >> fNlad[i]; |
1069 | for(i=0;i<fNlayers;i++) rb >> fNdet[i]; | |
023ae34b | 1070 | fGm.Expand(fNmodules); |
1071 | fGm.SetOwner(kTRUE); | |
85f1e34a | 1072 | for(i=0;i<fNmodules;i++){ |
023ae34b | 1073 | if(i<0||i>=fGm.GetSize()){ |
1074 | Error("ReadGeom","i<0||i>=fGm.GetSize()=%d", | |
1075 | i,fGm.GetSize()); | |
1076 | return rb; | |
1077 | } // end if | |
1078 | fGm.AddAt(new AliITSgeomMatrix,i); | |
1079 | rb >> *(GetGeomMatrix(i)); | |
85f1e34a | 1080 | } // end for i |
164da35c | 1081 | rb >> i; |
023ae34b | 1082 | fShape.Expand(i); |
1083 | fShape.SetOwner(kTRUE); | |
1084 | for(i=0;i<fShape.GetEntries();i++) { | |
1085 | rb >> j; | |
1086 | switch (j){ | |
1087 | case kSPD:{ | |
1088 | AliITSgeomSPD *s = new AliITSgeomSPD(); | |
1089 | rb >> *s; | |
1090 | fShape.AddAt(s,kSPD);} | |
1091 | break; | |
1092 | case kSDD:{ | |
1093 | AliITSgeomSDD *s = new AliITSgeomSDD(); | |
1094 | rb >> *s; | |
1095 | fShape.AddAt(s,kSDD);} | |
1096 | break; | |
1097 | case kSSD:{ | |
1098 | AliITSgeomSSD *s = new AliITSgeomSSD(); | |
1099 | rb >> *s; | |
1100 | fShape.AddAt(s,kSSD);} | |
1101 | break; | |
1102 | case kSSDp:{ | |
1103 | AliITSgeomSSD *s = new AliITSgeomSSD(); | |
1104 | rb >> *s; | |
1105 | fShape.AddAt(s,kSSDp);} | |
1106 | break; | |
1107 | case kSDDp:{ | |
1108 | AliITSgeomSDD *s = new AliITSgeomSDD(); | |
1109 | rb >> *s; | |
1110 | fShape.AddAt(s,kSDDp);} | |
1111 | break; | |
1112 | } // end switch | |
164da35c | 1113 | } // end for i |
85f1e34a | 1114 | return rb; |
593e9459 | 1115 | } |
593e9459 | 1116 | //______________________________________________________________________ |
269f57ed | 1117 | // The following routines modify the transformation of "this" |
1118 | // geometry transformations in a number of different ways. | |
593e9459 | 1119 | //______________________________________________________________________ |
269f57ed | 1120 | void AliITSgeom::GlobalChange(const Float_t *tran,const Float_t *rot){ |
85f1e34a | 1121 | // This function performs a Cartesian translation and rotation of |
1122 | // the full ITS from its default position by an amount determined by | |
1123 | // the three element arrays tran and rot. If every element | |
1124 | // of tran and rot are zero then there is no change made | |
1125 | // the geometry. The change is global in that the exact same translation | |
1126 | // and rotation is done to every detector element in the exact same way. | |
1127 | // The units of the translation are those of the Monte Carlo, usually cm, | |
1128 | // and those of the rotation are in radians. The elements of tran | |
1129 | // are tran[0] = x, tran[1] = y, and tran[2] = z. | |
1130 | // The elements of rot are rot[0] = rx, rot[1] = ry, and | |
1131 | // rot[2] = rz. A change in x will move the hole ITS in the ALICE | |
1132 | // global x direction, the same for a change in y. A change in z will | |
1133 | // result in a translation of the ITS as a hole up or down the beam line. | |
1134 | // A change in the angles will result in the inclination of the ITS with | |
1135 | // respect to the beam line, except for an effective rotation about the | |
1136 | // beam axis which will just rotate the ITS as a hole about the beam axis. | |
023ae34b | 1137 | // Intputs: |
1138 | // Float_t *tran A 3 element array representing the global translations. | |
1139 | // the elements are x,y,z in cm. | |
1140 | // Float_t *rot A 3 element array representing the global rotation | |
1141 | // angles about the three axis x,y,z in radians | |
1142 | // Outputs: | |
1143 | // none. | |
1144 | // Return: | |
1145 | // none. | |
85f1e34a | 1146 | Int_t i,j; |
1147 | Double_t t[3],r[3]; | |
1148 | AliITSgeomMatrix *g; | |
1149 | ||
1150 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1151 | for(i=0;i<fNmodules;i++){ | |
023ae34b | 1152 | g = this->GetGeomMatrix(i); |
1153 | g->GetTranslation(t); | |
1154 | g->GetAngles(r); | |
1155 | for(j=0;j<3;j++){ | |
1156 | t[j] += tran[j]; | |
1157 | r[j] += rot[j]; | |
1158 | } // end for j | |
1159 | g->SetTranslation(t); | |
1160 | g->SetAngles(r); | |
85f1e34a | 1161 | } // end for i |
1162 | return; | |
593e9459 | 1163 | } |
85f1e34a | 1164 | //______________________________________________________________________ |
1165 | void AliITSgeom::GlobalCylindericalChange(const Float_t *tran, | |
1166 | const Float_t *rot){ | |
1167 | // This function performs a cylindrical translation and rotation of | |
1168 | // each ITS element by a fixed about in radius, rphi, and z from its | |
1169 | // default position by an amount determined by the three element arrays | |
1170 | // tran and rot. If every element of tran and | |
1171 | // rot are zero then there is no change made the geometry. The | |
1172 | // change is global in that the exact same distance change in translation | |
1173 | // and rotation is done to every detector element in the exact same way. | |
1174 | // The units of the translation are those of the Monte Carlo, usually cm, | |
1175 | // and those of the rotation are in radians. The elements of tran | |
1176 | // are tran[0] = r, tran[1] = rphi, and tran[2] = z. | |
1177 | // The elements of rot are rot[0] = rx, rot[1] = ry, and | |
1178 | // rot[2] = rz. A change in r will results in the increase of the | |
1179 | // radius of each layer by the same about. A change in rphi will results in | |
1180 | // the rotation of each layer by a different angle but by the same | |
1181 | // circumferential distance. A change in z will result in a translation | |
1182 | // of the ITS as a hole up or down the beam line. A change in the angles | |
1183 | // will result in the inclination of the ITS with respect to the beam | |
1184 | // line, except for an effective rotation about the beam axis which will | |
1185 | // just rotate the ITS as a hole about the beam axis. | |
023ae34b | 1186 | // Intputs: |
1187 | // Float_t *tran A 3 element array representing the global translations. | |
1188 | // the elements are r,theta,z in cm/radians. | |
1189 | // Float_t *rot A 3 element array representing the global rotation | |
1190 | // angles about the three axis x,y,z in radians | |
1191 | // Outputs: | |
1192 | // none. | |
1193 | // Return: | |
1194 | // none. | |
85f1e34a | 1195 | Int_t i,j; |
1196 | Double_t t[3],ro[3],r,r0,phi,rphi; | |
1197 | AliITSgeomMatrix *g; | |
1198 | ||
1199 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1200 | for(i=0;i<fNmodules;i++){ | |
023ae34b | 1201 | g = this->GetGeomMatrix(i); |
1202 | g->GetTranslation(t); | |
1203 | g->GetAngles(ro); | |
1204 | r = r0= TMath::Hypot(t[1],t[0]); | |
1205 | phi = TMath::ATan2(t[1],t[0]); | |
1206 | rphi = r0*phi; | |
1207 | r += tran[0]; | |
1208 | rphi += tran[1]; | |
1209 | phi = rphi/r0; | |
1210 | t[0] = r*TMath::Cos(phi); | |
1211 | t[1] = r*TMath::Sin(phi); | |
1212 | t[2] += tran[2]; | |
1213 | for(j=0;j<3;j++){ | |
1214 | ro[j] += rot[j]; | |
1215 | } // end for j | |
1216 | g->SetTranslation(t); | |
1217 | g->SetAngles(ro); | |
85f1e34a | 1218 | } // end for i |
1219 | return; | |
593e9459 | 1220 | } |
85f1e34a | 1221 | //______________________________________________________________________ |
269f57ed | 1222 | void AliITSgeom::RandomChange(const Float_t *stran,const Float_t *srot){ |
85f1e34a | 1223 | // This function performs a Gaussian random displacement and/or |
1224 | // rotation about the present global position of each active | |
1225 | // volume/detector of the ITS. The sigma of the random displacement | |
1226 | // is determined by the three element array stran, for the | |
1227 | // x y and z translations, and the three element array srot, | |
1228 | // for the three rotation about the axis x y and z. | |
023ae34b | 1229 | // Intputs: |
1230 | // Float_t *stran A 3 element array representing the global translations | |
1231 | // variances. The elements are x,y,z in cm. | |
1232 | // Float_t *srot A 3 element array representing the global rotation | |
1233 | // angles variances about the three axis x,y,z in radians. | |
1234 | // Outputs: | |
1235 | // none. | |
1236 | // Return: | |
1237 | // none. | |
85f1e34a | 1238 | Int_t i,j; |
1239 | Double_t t[3],r[3]; | |
1240 | AliITSgeomMatrix *g; | |
1241 | ||
1242 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1243 | for(i=0;i<fNmodules;i++){ | |
023ae34b | 1244 | g = this->GetGeomMatrix(i); |
1245 | g->GetTranslation(t); | |
1246 | g->GetAngles(r); | |
1247 | for(j=0;j<3;j++){ | |
1248 | t[j] += gRandom->Gaus(0.0,stran[j]); | |
1249 | r[j] += gRandom->Gaus(0.0, srot[j]); | |
1250 | } // end for j | |
1251 | g->SetTranslation(t); | |
1252 | g->SetAngles(r); | |
85f1e34a | 1253 | } // end for i |
1254 | return; | |
593e9459 | 1255 | } |
85f1e34a | 1256 | //______________________________________________________________________ |
269f57ed | 1257 | void AliITSgeom::RandomCylindericalChange(const Float_t *stran, |
1258 | const Float_t *srot){ | |
85f1e34a | 1259 | // This function performs a Gaussian random displacement and/or |
1260 | // rotation about the present global position of each active | |
1261 | // volume/detector of the ITS. The sigma of the random displacement | |
1262 | // is determined by the three element array stran, for the | |
1263 | // r rphi and z translations, and the three element array srot, | |
1264 | // for the three rotation about the axis x y and z. This random change | |
1265 | // in detector position allow for the simulation of a random uncertainty | |
1266 | // in the detector positions of the ITS. | |
023ae34b | 1267 | // Intputs: |
1268 | // Float_t *stran A 3 element array representing the global translations | |
1269 | // variances. The elements are r,theta,z in cm/radians. | |
1270 | // Float_t *srot A 3 element array representing the global rotation | |
1271 | // angles variances about the three axis x,y,z in radians. | |
1272 | // Outputs: | |
1273 | // none. | |
1274 | // Return: | |
1275 | // none. | |
85f1e34a | 1276 | Int_t i,j; |
1277 | Double_t t[3],ro[3],r,r0,phi,rphi; | |
1278 | TRandom ran; | |
1279 | AliITSgeomMatrix *g; | |
1280 | ||
1281 | fTrans = (fTrans && 0xfffd) + 2; // set bit 1 true. | |
1282 | for(i=0;i<fNmodules;i++){ | |
023ae34b | 1283 | g = this->GetGeomMatrix(i); |
1284 | g->GetTranslation(t); | |
1285 | g->GetAngles(ro); | |
1286 | r = r0= TMath::Hypot(t[1],t[0]); | |
1287 | phi = TMath::ATan2(t[1],t[0]); | |
1288 | rphi = r0*phi; | |
1289 | r += ran.Gaus(0.0,stran[0]); | |
1290 | rphi += ran.Gaus(0.0,stran[1]); | |
1291 | phi = rphi/r0; | |
1292 | t[0] = r*TMath::Cos(phi); | |
1293 | t[1] = r*TMath::Sin(phi); | |
1294 | t[2] += ran.Gaus(0.0,stran[2]); | |
1295 | for(j=0;j<3;j++){ | |
1296 | ro[j] += ran.Gaus(0.0, srot[j]); | |
1297 | } // end for j | |
1298 | g->SetTranslation(t); | |
1299 | g->SetAngles(ro); | |
85f1e34a | 1300 | } // end for i |
1301 | return; | |
593e9459 | 1302 | } |
1303 | //______________________________________________________________________ | |
5cf690c1 | 1304 | void AliITSgeom::GeantToTracking(const AliITSgeom &source){ |
85f1e34a | 1305 | // Copy the geometry data but change it to go between the ALICE |
1306 | // Global coordinate system to that used by the ITS tracking. A slightly | |
1307 | // different coordinate system is used when tracking. This coordinate | |
1308 | // system is only relevant when the geometry represents the cylindrical | |
1309 | // ALICE ITS geometry. For tracking the Z axis is left alone but X-> -Y | |
1310 | // and Y-> X such that X always points out of the ITS cylinder for every | |
1311 | // layer including layer 1 (where the detectors are mounted upside down). | |
85f1e34a | 1312 | //Begin_Html |
1313 | /* | |
1314 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
1315 | */ | |
1316 | //End_Html | |
023ae34b | 1317 | // Input: |
1318 | // AliITSgeom &source The AliITSgeom class with which to make this | |
1319 | // a copy of. | |
1320 | // Output: | |
1321 | // none. | |
1322 | // Return: | |
1323 | // none. | |
85f1e34a | 1324 | Int_t i,j,k,l,id[3]; |
1325 | Double_t r0[3][3],r1[3][3]; | |
1326 | Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}}; | |
1327 | Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}}; | |
1328 | ||
1329 | *this = source; // copy everything | |
1330 | for(i=0;i<GetIndexMax();i++){ | |
023ae34b | 1331 | GetGeomMatrix(i)->GetIndex(id); |
1332 | GetGeomMatrix(i)->GetMatrix(r0); | |
1333 | if(id[0]==1){ // Layer 1 is treated different from the others. | |
1334 | for(j=0;j<3;j++) for(k=0;k<3;k++){ | |
1335 | r1[j][k] = 0.; | |
1336 | for(l=0;l<3;l++) r1[j][k] += a0[j][l]*r0[l][k]; | |
1337 | } // end for j,k | |
1338 | }else{ | |
1339 | for(j=0;j<3;j++) for(k=0;k<3;k++){ | |
1340 | r1[j][k] = 0.; | |
1341 | for(l=0;l<3;l++) r1[j][k] += a1[j][l]*r0[l][k]; | |
1342 | } // end for j,k | |
1343 | } // end if | |
1344 | GetGeomMatrix(i)->SetMatrix(r1); | |
85f1e34a | 1345 | } // end for i |
1346 | this->fTrans = (this->fTrans && 0xfffe) + 1; // set bit 0 true. | |
1347 | return; | |
58005f18 | 1348 | } |
269f57ed | 1349 | //______________________________________________________________________ |
5cf690c1 | 1350 | Int_t AliITSgeom::GetNearest(const Double_t g[3],Int_t lay)const{ |
85f1e34a | 1351 | // Finds the Detector (Module) that is nearest the point g [cm] in |
1352 | // ALICE Global coordinates. If layer !=0 then the search is restricted | |
1353 | // to Detectors (Modules) in that particular layer. | |
023ae34b | 1354 | // Inputs: |
1355 | // Double_t g[3] The ALICE Cartesian global coordinate from which the | |
1356 | // distance is to be calculated with. | |
1357 | // Int_t lay The layer to restrict the search to. If layer=0 then | |
1358 | // all layers are searched. Default is lay=0. | |
1359 | // Output: | |
1360 | // none. | |
1361 | // Return: | |
1362 | // The module number representing the nearest module. | |
85f1e34a | 1363 | Int_t i,l,a,e,in=0; |
1364 | Double_t d,dn=1.0e10; | |
1365 | Bool_t t=lay!=0; // skip if lay = 0 default value check all layers. | |
085bb6ed | 1366 | |
85f1e34a | 1367 | for(i=0;i<fNmodules;i++){ |
023ae34b | 1368 | if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;} |
1369 | if((d=GetGeomMatrix(i)->Distance2(g))<dn){ | |
1370 | dn = d; | |
1371 | in = i; | |
1372 | } // end if | |
85f1e34a | 1373 | } // end for i |
1374 | return in; | |
085bb6ed | 1375 | } |
269f57ed | 1376 | //______________________________________________________________________ |
5cf690c1 | 1377 | void AliITSgeom::GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay)const{ |
85f1e34a | 1378 | // Finds 27 Detectors (Modules) that are nearest the point g [cm] in |
1379 | // ALICE Global coordinates. If layer !=0 then the search is restricted | |
1380 | // to Detectors (Modules) in that particular layer. The number 27 comes | |
1381 | // from including the nearest detector and all those around it (up, down, | |
1382 | // left, right, forwards, backwards, and the corners). | |
023ae34b | 1383 | // Input: |
1384 | // Double_t g[3] The ALICE Cartesian global coordinate from which the | |
1385 | // distance is to be calculated with. | |
1386 | // Int_t lay The layer to restrict the search to. If layer=0 then | |
1387 | // all layers are searched. Default is lay=0. | |
1388 | // Output: | |
1389 | // Int_t n[27] The module number representing the nearest 27 modules | |
1390 | // in order. | |
1391 | // Return: | |
1392 | // none. | |
85f1e34a | 1393 | Int_t i,l,a,e,in[27]={0,0,0,0,0,0,0,0,0, |
023ae34b | 1394 | 0,0,0,0,0,0,0,0,0, |
1395 | 0,0,0,0,0,0,0,0,0,}; | |
85f1e34a | 1396 | Double_t d,dn[27]={1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, |
023ae34b | 1397 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, |
1398 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1399 | 1.0e10,1.0e10,1.0e10,1.0e10,1.0e10,1.0e10, | |
1400 | 1.0e10,1.0e10,1.0e10}; | |
85f1e34a | 1401 | Bool_t t=(lay!=0); // skip if lay = 0 default value check all layers. |
269f57ed | 1402 | |
85f1e34a | 1403 | for(i=0;i<fNmodules;i++){ |
023ae34b | 1404 | if(t){GetModuleId(i,l,a,e);if(l!=lay) continue;} |
1405 | for(a=0;a<27;a++){ | |
1406 | d = GetGeomMatrix(i)->Distance2(g); | |
1407 | if(d<dn[a]){ | |
1408 | for(e=26;e>a;e--){dn[e] = dn[e-1];in[e] = in[e-1];} | |
1409 | dn[a] = d; in[a] = i; | |
1410 | } // end if d<dn[i] | |
1411 | } // end for a | |
85f1e34a | 1412 | } // end for i |
1413 | for(i=0;i<27;i++) n[i] = in[i]; | |
269f57ed | 1414 | } |
023ae34b | 1415 | //---------------------------------------------------------------------- |
5cf690c1 | 1416 | Double_t AliITSgeom::GetAverageRadiusOfLayer(Int_t layer,Double_t &range)const{ |
023ae34b | 1417 | // Loops over all modules for a given layer and computes the |
1418 | // average cylindrical radius (about the z axis) and the range of | |
1419 | // radii covered by this layer. Units, [cm] the Alice default unit. | |
1420 | // Input: | |
1421 | // Int_t layer The layer for which the average radii is to be found | |
1422 | // Output: | |
1423 | // Double_t &range The range of radii covered by this layer | |
1424 | // Return: | |
1425 | // The average radii for this layer. | |
1426 | Double_t r=0.0,rmin=1.0e6,rmax=-1.0,rp,t[3],l[3],dl[3]; | |
1427 | Int_t n=0,i,j,lay,lad,det; | |
5cf690c1 | 1428 | AliITSDetector idet; |
023ae34b | 1429 | |
1430 | for(i=0;i<GetIndexMax();i++) { | |
1431 | GetModuleId(i,lay,lad,det); | |
5cf690c1 | 1432 | idet = GetModuleType(i); |
023ae34b | 1433 | if(lay!=layer) continue; |
1434 | dl[0] = dl[1] = dl[2] = 0.0; | |
5cf690c1 | 1435 | if(IsShapeDefined((Int_t)idet)) { |
1436 | switch(idet){ | |
1437 | case kSPD:{ | |
1438 | dl[0] = ((AliITSgeomSPD*)GetShape(idet))->GetDx(); | |
1439 | dl[1] = ((AliITSgeomSPD*)GetShape(idet))->GetDy(); | |
1440 | dl[2] = ((AliITSgeomSPD*)GetShape(idet))->GetDz(); | |
023ae34b | 1441 | } break; |
5cf690c1 | 1442 | case kSDD: case kSDDp:{ |
1443 | dl[0] = ((AliITSgeomSDD*)GetShape(idet))->GetDx(); | |
1444 | dl[1] = ((AliITSgeomSDD*)GetShape(idet))->GetDy(); | |
1445 | dl[2] = ((AliITSgeomSDD*)GetShape(idet))->GetDz(); | |
023ae34b | 1446 | } break; |
5cf690c1 | 1447 | case kSSD: case kSSDp:{ |
1448 | dl[0] = ((AliITSgeomSSD*)GetShape(idet))->GetDx(); | |
1449 | dl[1] = ((AliITSgeomSSD*)GetShape(idet))->GetDy(); | |
1450 | dl[2] = ((AliITSgeomSSD*)GetShape(idet))->GetDz(); | |
023ae34b | 1451 | } break; |
22e9f252 | 1452 | case kND:{ |
1453 | Warning("GetAverageRadiusOfLayer", | |
1454 | "idet=kND undefined detector type"); | |
1455 | continue; | |
1456 | }break; | |
1457 | default:{ | |
1458 | Warning("GetAverageRadiusOfLayer", | |
1459 | "idet=%d not a defined value",(Int_t)idet); | |
1460 | continue; | |
1461 | }break; | |
023ae34b | 1462 | }// end switch. |
1463 | } // end of | |
1464 | n++; | |
1465 | GetTransCyln(i,t); | |
1466 | rp = t[0]; | |
1467 | r += rp; | |
1468 | if(rmin>rp) rmin = rp; | |
1469 | if(rmax<rp) rmax = rp; | |
1470 | for(j=0;j<8;j++){ // loop over the corners | |
1471 | l[0] = dl[0];if(j%2==0) l[0] = -dl[0]; | |
1472 | l[1] = dl[1];if(j==2||j==3||j==6||j==7) l[1] = -dl[1]; | |
1473 | l[2] = dl[2];if(j>3) l[2] = -dl[2]; | |
1474 | LtoG(i,l,t); | |
1475 | rp = TMath::Sqrt(t[0]*t[0]+t[1]*t[1]); | |
1476 | if(rmin>rp) rmin = rp; | |
1477 | if(rmax<rp) rmax = rp; | |
1478 | } // end for j | |
1479 | } // end for i | |
1480 | r /= (Double_t)n; | |
1481 | range = TMath::Max(rmax-r,r-rmin); | |
1482 | return r; | |
1483 | } | |
00a7cc50 | 1484 | //_______________________________________________________________________ |
1485 | void AliITSgeom::DetLToTrackingV2(Int_t md, Float_t xin, Float_t zin, Float_t &yout, Float_t &zout) { | |
1486 | ||
1487 | //Conversion from local coordinates on detectors to local | |
1488 | //coordinates used for tracking ("v2") | |
d7973d08 | 1489 | Float_t x,y,z; |
1490 | Double_t rt[9]; | |
1491 | GetTrans(md,x,y,z); | |
1492 | GetRotMatrix(md,rt); | |
00a7cc50 | 1493 | Double_t al=TMath::ATan2(rt[1],rt[0])+TMath::Pi(); |
1494 | yout=-(-xin+(x*TMath::Cos(al)+y*TMath::Sin(al))); | |
d7973d08 | 1495 | if ( md<(GetModuleIndex(2,1,1)) ) yout*=-1; |
1496 | zout=-zin+(Double_t)z; | |
00a7cc50 | 1497 | } |
1498 | ||
1499 | //_______________________________________________________________________ | |
1500 | void AliITSgeom::TrackingV2ToDetL(Int_t md,Float_t yin,Float_t zin,Float_t &xout,Float_t &zout) { | |
1501 | //Conversion from local coordinates used for tracking ("v2") to | |
1502 | //local detector coordinates | |
1503 | ||
d7973d08 | 1504 | Float_t x,y,z; Double_t rt[9]; |
1505 | GetTrans(md,x,y,z); | |
1506 | GetRotMatrix(md,rt); | |
00a7cc50 | 1507 | Double_t al=TMath::ATan2(rt[1],rt[0])+TMath::Pi(); |
d7973d08 | 1508 | xout=yin; |
1509 | if( md<(GetModuleIndex(2,1,1)) ) xout=-xout; | |
00a7cc50 | 1510 | xout+=(x*TMath::Cos(al)+y*TMath::Sin(al)); |
1511 | zout=-zin+(Double_t)z; | |
1512 | } |