]>
Commit | Line | Data |
---|---|---|
df5240ea | 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 | $Log$ | |
94831058 | 18 | Revision 1.13 2002/01/28 21:49:19 nilsen |
19 | Fixed a logical bug in functions GtoLPositionError, LtoGPositionError, | |
20 | GtoLPositionErrorTracking, and LtoGPositionErrorTracking. | |
21 | ||
ecb0c8bc | 22 | Revision 1.12 2001/10/12 22:07:20 nilsen |
23 | A patch for C++ io manipulation functions so that they will work both | |
24 | with GNU gcc 2.96 and GNU gcc 3.01 compilers. Needs to be tested with | |
25 | other platforms. | |
26 | ||
431a7819 | 27 | Revision 1.11 2001/09/04 14:54:31 hristov |
28 | Const multidimentional arrays cause problems in the CINT dictionary on HP, const removed | |
29 | ||
8d5bd3f9 | 30 | Revision 1.10 2001/08/24 21:06:37 nilsen |
31 | Added more documentation, fixed up some coding violations, and some | |
32 | forward declorations. | |
33 | ||
85f1e34a | 34 | Revision 1.9 2001/03/23 15:21:56 nilsen |
35 | Added Cylinderical Coordinates for use with Tracking. Fixed a but in the | |
36 | Streamer, It was not setting a value for frot[3] as it should when reading. | |
37 | ||
d8cc8493 | 38 | Revision 1.8 2001/02/09 00:00:57 nilsen |
39 | Fixed compatibility problem with HP unix {ios::fmtflags -> Int_t}. Fixed | |
40 | bugs in iostream based streamers used to read and write .det files. Fixed | |
41 | some detector sizes. Fixed bugs in some default-special constructors. | |
42 | ||
31b8cd63 | 43 | Revision 1.7 2001/02/03 00:00:30 nilsen |
44 | New version of AliITSgeom and related files. Now uses automatic streamers, | |
45 | set up for new formatted .det file which includes detector information. | |
46 | Additional smaller modifications are still to come. | |
47 | ||
a8a6107b | 48 | Revision 1.5 2000/10/02 16:32:35 barbera |
49 | Forward declaration added | |
50 | ||
92c19c36 | 51 | Revision 1.1.2.6 2000/10/02 15:52:05 barbera |
52 | Forward declaration added | |
53 | ||
54 | Revision 1.4 2000/09/07 17:30:45 nilsen | |
55 | fixed a bug in SixAnglesFromMatrix. | |
56 | ||
3f616de1 | 57 | Revision 1.3 2000/09/05 14:25:50 nilsen |
58 | Made fixes for HP compiler. All function parameter default values placed | |
59 | in .h file. Fixed the usual problem with HP comilers and the "for(Int_t i..." | |
60 | business. Replaced casting (Double_t [3][3]) to (Double_t (*)[3]) for HP. | |
61 | Lastly removed all "const" before function parameters which were 2 dim. arrays, | |
62 | because on HP root generates some strange code (?). Thanks Peter for the | |
63 | changes. | |
64 | ||
d962cab4 | 65 | Revision 1.2 2000/08/29 20:16:50 nilsen |
66 | New class for ITS coordiante transformations used by AliITSgeom nearly | |
67 | exclusively. | |
68 | ||
df5240ea | 69 | Revision 1.1.2.1 2000/06/04 16:32:31 Nilsen |
70 | A new class to hold the matrix information needed by AliITSgeom. | |
71 | ||
72 | */ | |
85f1e34a | 73 | |
74 | //////////////////////////////////////////////////////////////////////// | |
75 | // This is the implementation file for AliITSgeomMatrix class. It | |
76 | // contains the routines to manipulate, setup, and queary the geometry | |
77 | // of a given ITS module. An ITS module may be one of at least three | |
78 | // ITS detector technologies, Silicon Pixel, Drift, or Strip Detectors, | |
79 | // and variations of these in size and/or layout. These routines let | |
80 | // one go between ALICE global coordiantes (cm) to a given modules | |
81 | // specific local coordinates (cm). | |
82 | //////////////////////////////////////////////////////////////////////// | |
83 | ||
df5240ea | 84 | #include <iostream.h> |
8253cd9a | 85 | #include <iomanip.h> |
df5240ea | 86 | #include <TMath.h> |
87 | #include <TBuffer.h> | |
d8cc8493 | 88 | #include <TClass.h> |
df5240ea | 89 | |
90 | #include "AliITSgeomMatrix.h" | |
91 | ||
92 | ClassImp(AliITSgeomMatrix) | |
93 | //---------------------------------------------------------------------- | |
94 | AliITSgeomMatrix::AliITSgeomMatrix(){ | |
95 | //////////////////////////////////////////////////////////////////////// | |
96 | // The Default constructor for the AliITSgeomMatrix class. By Default | |
97 | // the angles of rotations are set to zero, meaning that the rotation | |
98 | // matrix is the unit matrix. The translation vector is also set to zero | |
99 | // as are the module id number. The detector type is set to -1 (an undefined | |
100 | // value). The full rotation matrix is kept so that the evaluation | |
101 | // of a coordinate transformation can be done quickly and with a minimum | |
102 | // of CPU overhead. The basic coordinate systems are the ALICE global | |
103 | // coordinate system and the detector local coordinate system. In general | |
104 | // this structure is not limited to just those two coordinate systems. | |
105 | //Begin_Html | |
106 | /* | |
107 | <img src="picts/ITS/AliISgeomMatrix_L1.gif"> | |
108 | */ | |
109 | //End_Html | |
110 | //////////////////////////////////////////////////////////////////////// | |
111 | Int_t i,j; | |
112 | ||
113 | fDetectorIndex = -1; // a value never defined. | |
114 | for(i=0;i<3;i++){ | |
115 | fid[i] = 0; | |
116 | frot[i] = ftran[i] = 0.0; | |
117 | for(j=0;j<3;j++) fm[i][j] = 0.0; | |
d8cc8493 | 118 | fCylR = fCylPhi = 0.0; |
df5240ea | 119 | }// end for i |
120 | fm[0][0] = fm[1][1] = fm[2][2] = 1.0; | |
121 | } | |
122 | //---------------------------------------------------------------------- | |
123 | AliITSgeomMatrix::AliITSgeomMatrix(const AliITSgeomMatrix &sourse){ | |
124 | //////////////////////////////////////////////////////////////////////// | |
125 | // The standard copy constructor. This make a full / proper copy of | |
126 | // this class. | |
127 | //////////////////////////////////////////////////////////////////////// | |
128 | Int_t i,j; | |
129 | ||
130 | this->fDetectorIndex = sourse.fDetectorIndex; | |
131 | for(i=0;i<3;i++){ | |
132 | this->fid[i] = sourse.fid[i]; | |
133 | this->frot[i] = sourse.frot[i]; | |
134 | this->ftran[i] = sourse.ftran[i]; | |
d8cc8493 | 135 | this->fCylR = sourse.fCylR; |
136 | this->fCylPhi = sourse.fCylPhi; | |
df5240ea | 137 | for(j=0;j<3;j++) this->fm[i][j] = sourse.fm[i][j]; |
138 | }// end for i | |
139 | } | |
140 | //---------------------------------------------------------------------- | |
141 | void AliITSgeomMatrix::operator=(const AliITSgeomMatrix &sourse){ | |
142 | //////////////////////////////////////////////////////////////////////// | |
143 | // The standard = operator. This make a full / proper copy of | |
144 | // this class. | |
145 | //////////////////////////////////////////////////////////////////////// | |
146 | Int_t i,j; | |
147 | ||
148 | this->fDetectorIndex = sourse.fDetectorIndex; | |
149 | for(i=0;i<3;i++){ | |
150 | this->fid[i] = sourse.fid[i]; | |
151 | this->frot[i] = sourse.frot[i]; | |
152 | this->ftran[i] = sourse.ftran[i]; | |
d8cc8493 | 153 | this->fCylR = sourse.fCylR; |
154 | this->fCylPhi = sourse.fCylPhi; | |
df5240ea | 155 | for(j=0;j<3;j++) this->fm[i][j] = sourse.fm[i][j]; |
156 | }// end for i | |
157 | } | |
158 | //---------------------------------------------------------------------- | |
159 | AliITSgeomMatrix::AliITSgeomMatrix(const Int_t idt,const Int_t id[3], | |
160 | const Double_t rot[3],const Double_t tran[3]){ | |
161 | //////////////////////////////////////////////////////////////////////// | |
162 | // This is a constructor for the AliITSgeomMatrix class. The matrix is | |
163 | // defined by 3 standard rotation angles [radians], and the translation | |
164 | // vector tran [cm]. In addition the layer, ladder, and detector number | |
165 | // for this particular module and the type of module must be given. | |
166 | // The full rotation matrix is kept so that the evaluation | |
167 | // of a coordinate transformation can be done quickly and with a minimum | |
168 | // of CPU overhead. The basic coordinate systems are the ALICE global | |
169 | // coordinate system and the detector local coordinate system. In general | |
170 | // this structure is not limited to just those two coordinate systems. | |
171 | //Begin_Html | |
172 | /* | |
173 | <img src="picts/ITS/AliISgeomMatrix_L1.gif"> | |
174 | */ | |
175 | //End_Html | |
176 | //////////////////////////////////////////////////////////////////////// | |
d8cc8493 | 177 | Int_t i; |
df5240ea | 178 | |
d8cc8493 | 179 | fDetectorIndex = idt; // a value never defined. |
180 | for(i=0;i<3;i++){ | |
181 | fid[i] = id[i]; | |
182 | frot[i] = rot[i]; | |
183 | ftran[i] = tran[i]; | |
184 | }// end for i | |
185 | fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]); | |
186 | fCylPhi = TMath::ATan2(ftran[1],ftran[0]); | |
187 | if(fCylPhi<0.0) fCylPhi += TMath::Pi(); | |
188 | this->MatrixFromAngle(); | |
df5240ea | 189 | } |
190 | //---------------------------------------------------------------------- | |
191 | AliITSgeomMatrix::AliITSgeomMatrix(const Int_t idt, const Int_t id[3], | |
d962cab4 | 192 | Double_t matrix[3][3], |
df5240ea | 193 | const Double_t tran[3]){ |
194 | //////////////////////////////////////////////////////////////////////// | |
195 | // This is a constructor for the AliITSgeomMatrix class. The rotation matrix | |
196 | // is given as one of the inputs, and the translation vector tran [cm]. In | |
197 | // addition the layer, ladder, and detector number for this particular | |
198 | // module and the type of module must be given. The full rotation matrix | |
199 | // is kept so that the evaluation of a coordinate transformation can be | |
200 | // done quickly and with a minimum of CPU overhead. The basic coordinate | |
201 | // systems are the ALICE global coordinate system and the detector local | |
202 | // coordinate system. In general this structure is not limited to just | |
203 | // those two coordinate systems. | |
204 | //Begin_Html | |
205 | /* | |
206 | <img src="picts/ITS/AliISgeomMatrix_L1.gif"> | |
207 | */ | |
208 | //End_Html | |
209 | //////////////////////////////////////////////////////////////////////// | |
d8cc8493 | 210 | Int_t i,j; |
df5240ea | 211 | |
d8cc8493 | 212 | fDetectorIndex = idt; // a value never defined. |
213 | for(i=0;i<3;i++){ | |
214 | fid[i] = id[i]; | |
215 | ftran[i] = tran[i]; | |
216 | for(j=0;j<3;j++) fm[i][j] = matrix[i][j]; | |
217 | }// end for i | |
218 | fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]); | |
219 | fCylPhi = TMath::ATan2(ftran[1],ftran[0]); | |
220 | if(fCylPhi<0.0) fCylPhi += TMath::Pi(); | |
221 | this->AngleFromMatrix(); | |
df5240ea | 222 | } |
223 | //---------------------------------------------------------------------- | |
224 | void AliITSgeomMatrix::SixAnglesFromMatrix(Double_t *ang){ | |
225 | //////////////////////////////////////////////////////////////////////// | |
226 | // This function returns the 6 GEANT 3.21 rotation angles [degrees] in | |
227 | // the array ang which must be at least [6] long. | |
228 | //////////////////////////////////////////////////////////////////////// | |
229 | Double_t si,c=180./TMath::Pi(); | |
230 | ||
231 | ang[1] = TMath::ATan2(fm[0][1],fm[0][0]); | |
232 | if(TMath::Cos(ang[1])!=0.0) si = fm[0][0]/TMath::Cos(ang[1]); | |
233 | else si = fm[0][1]/TMath::Sin(ang[1]); | |
234 | ang[0] = TMath::ATan2(si,fm[0][2]); | |
235 | ||
236 | ang[3] = TMath::ATan2(fm[1][1],fm[1][0]); | |
237 | if(TMath::Cos(ang[3])!=0.0) si = fm[1][0]/TMath::Cos(ang[3]); | |
238 | else si = fm[1][1]/TMath::Sin(ang[3]); | |
3f616de1 | 239 | ang[2] = TMath::ATan2(si,fm[1][2]); |
df5240ea | 240 | |
3f616de1 | 241 | ang[5] = TMath::ATan2(fm[2][1],fm[2][0]); |
242 | if(TMath::Cos(ang[5])!=0.0) si = fm[2][0]/TMath::Cos(ang[5]); | |
243 | else si = fm[2][1]/TMath::Sin(ang[5]); | |
244 | ang[4] = TMath::ATan2(si,fm[2][2]); | |
df5240ea | 245 | |
246 | for(Int_t i=0;i<6;i++) {ang[i] *= c; if(ang[i]<0.0) ang[i] += 360.;} | |
247 | } | |
248 | //---------------------------------------------------------------------- | |
249 | void AliITSgeomMatrix::MatrixFromSixAngles(const Double_t *ang){ | |
250 | //////////////////////////////////////////////////////////////////////// | |
251 | // Given the 6 GEANT 3.21 rotation angles [degree], this will compute and | |
252 | // set the rotations matrix and 3 standard rotation angles [radians]. | |
253 | // These angles and rotation matrix are overwrite the existing values in | |
254 | // this class. | |
255 | //////////////////////////////////////////////////////////////////////// | |
256 | Int_t i,j; | |
257 | Double_t si,lr[9],c=TMath::Pi()/180.; | |
258 | ||
259 | si = TMath::Sin(c*ang[0]); | |
260 | if(ang[0]== 90.0) si = +1.0; | |
261 | if(ang[0]==270.0) si = -1.0; | |
262 | if(ang[0]== 0.0||ang[0]==180.) si = 0.0; | |
263 | lr[0] = si * TMath::Cos(c*ang[1]); | |
264 | lr[1] = si * TMath::Sin(c*ang[1]); | |
265 | lr[2] = TMath::Cos(c*ang[0]); | |
266 | if(ang[0]== 90.0||ang[0]==270.) lr[2] = 0.0; | |
267 | if(ang[0]== 0.0) lr[2] = +1.0; | |
268 | if(ang[0]==180.0) lr[2] = -1.0; | |
269 | // | |
270 | si = TMath::Sin(c*ang[2]); | |
271 | if(ang[2]== 90.0) si = +1.0; | |
272 | if(ang[2]==270.0) si = -1.0; | |
273 | if(ang[2]== 0.0||ang[2]==180.) si = 0.0; | |
274 | lr[3] = si * TMath::Cos(c*ang[3]); | |
275 | lr[4] = si * TMath::Sin(c*ang[3]); | |
276 | lr[5] = TMath::Cos(c*ang[2]); | |
277 | if(ang[2]== 90.0||ang[2]==270.) lr[5] = 0.0; | |
278 | if(ang[2]== 0.0) lr[5] = +1.0; | |
279 | if(ang[2]==180.0) lr[5] = -1.0; | |
280 | // | |
281 | si = TMath::Sin(c*ang[4]); | |
282 | if(ang[4]== 90.0) si = +1.0; | |
283 | if(ang[4]==270.0) si = -1.0; | |
284 | if(ang[4]== 0.0||ang[4]==180.) si = 0.0; | |
285 | lr[6] = si * TMath::Cos(c*ang[5]); | |
286 | lr[7] = si * TMath::Sin(c*ang[5]); | |
287 | lr[8] = TMath::Cos(c*ang[4]); | |
288 | if(ang[4]== 90.0||ang[4]==270.0) lr[8] = 0.0; | |
289 | if(ang[4]== 0.0) lr[8] = +1.0; | |
290 | if(ang[4]==180.0) lr[8] = -1.0; | |
291 | // Normalize these elements and fill matrix fm. | |
292 | for(i=0;i<3;i++){// reuse si. | |
293 | si = 0.0; | |
294 | for(j=0;j<3;j++) si += lr[3*i+j]*lr[3*i+j]; | |
295 | si = TMath::Sqrt(1./si); | |
296 | for(j=0;j<3;j++) fm[i][j] = si*lr[3*i+j]; | |
297 | } // end for i | |
298 | this->AngleFromMatrix(); | |
299 | } | |
300 | //---------------------------------------------------------------------- | |
301 | AliITSgeomMatrix::AliITSgeomMatrix(const Double_t rotd[6]/*degrees*/, | |
302 | const Int_t idt,const Int_t id[3], | |
303 | const Double_t tran[3]){ | |
304 | //////////////////////////////////////////////////////////////////////// | |
305 | // This is a constructor for the AliITSgeomMatrix class. The matrix is | |
306 | // defined by the 6 GEANT 3.21 rotation angles [degrees], and the translation | |
307 | // vector tran [cm]. In addition the layer, ladder, and detector number | |
308 | // for this particular module and the type of module must be given. | |
309 | // The full rotation matrix is kept so that the evaluation | |
310 | // of a coordinate transformation can be done quickly and with a minimum | |
311 | // of CPU overhead. The basic coordinate systems are the ALICE global | |
312 | // coordinate system and the detector local coordinate system. In general | |
313 | // this structure is not limited to just those two coordinate systems. | |
314 | //Begin_Html | |
315 | /* | |
316 | <img src="picts/ITS/AliISgeomMatrix_L1.gif"> | |
317 | */ | |
318 | //End_Html | |
319 | //////////////////////////////////////////////////////////////////////// | |
320 | Int_t i; | |
321 | ||
322 | fDetectorIndex = idt; // a value never defined. | |
323 | for(i=0;i<3;i++){ | |
324 | fid[i] = id[i]; | |
325 | ftran[i] = tran[i]; | |
326 | }// end for i | |
d8cc8493 | 327 | fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]); |
328 | fCylPhi = TMath::ATan2(ftran[1],ftran[0]); | |
329 | if(fCylPhi<0.0) fCylPhi += TMath::Pi(); | |
df5240ea | 330 | this->MatrixFromSixAngles(rotd); |
331 | } | |
332 | //---------------------------------------------------------------------- | |
333 | void AliITSgeomMatrix::AngleFromMatrix(){ | |
334 | //////////////////////////////////////////////////////////////////////// | |
335 | // Computes the angles from the rotation matrix up to a phase of 180 degrees. | |
336 | //////////////////////////////////////////////////////////////////////// | |
337 | Double_t rx,ry,rz; | |
338 | // get angles from matrix up to a phase of 180 degrees. | |
339 | ||
340 | rx = TMath::ATan2(fm[2][1],fm[2][2]);if(rx<0.0) rx += 2.0*TMath::Pi(); | |
341 | ry = TMath::ASin(fm[0][2]); if(ry<0.0) ry += 2.0*TMath::Pi(); | |
342 | rz = TMath::ATan2(fm[1][1],fm[0][0]);if(rz<0.0) rz += 2.0*TMath::Pi(); | |
343 | frot[0] = rx; | |
344 | frot[1] = ry; | |
345 | frot[2] = rz; | |
346 | return; | |
347 | } | |
348 | //---------------------------------------------------------------------- | |
349 | void AliITSgeomMatrix::MatrixFromAngle(){ | |
350 | //////////////////////////////////////////////////////////////////////// | |
351 | // Computes the Rotation matrix from the angles [radians] kept in this | |
352 | // class. | |
353 | //////////////////////////////////////////////////////////////////////// | |
354 | Double_t sx,sy,sz,cx,cy,cz; | |
355 | ||
356 | sx = TMath::Sin(frot[0]); cx = TMath::Cos(frot[0]); | |
357 | sy = TMath::Sin(frot[1]); cy = TMath::Cos(frot[1]); | |
358 | sz = TMath::Sin(frot[2]); cz = TMath::Cos(frot[2]); | |
359 | fm[0][0] = cz*cy; // fr[0] | |
360 | fm[0][1] = -cz*sy*sx - sz*cx; // fr[1] | |
361 | fm[0][2] = -cz*sy*cx + sz*sx; // fr[2] | |
362 | fm[1][0] = sz*cy; // fr[3] | |
363 | fm[1][1] = -sz*sy*sx + cz*cx; // fr[4] | |
364 | fm[1][2] = -sz*sy*cx - cz*sx; // fr[5] | |
365 | fm[2][0] = sy; // fr[6] | |
366 | fm[2][1] = cy*sx; // fr[7] | |
367 | fm[2][2] = cy*cx; // fr[8] | |
368 | ||
369 | } | |
370 | //---------------------------------------------------------------------- | |
371 | void AliITSgeomMatrix::GtoLPosition(const Double_t g0[3],Double_t l[3]){ | |
372 | //////////////////////////////////////////////////////////////////////// | |
373 | // Returns the local coordinates given the global coordinates [cm]. | |
374 | //////////////////////////////////////////////////////////////////////// | |
375 | Int_t i,j; | |
376 | Double_t g[3]; | |
377 | ||
378 | for(i=0;i<3;i++) g[i] = g0[i] - ftran[i]; | |
379 | for(i=0;i<3;i++){ | |
380 | l[i] = 0.0; | |
381 | for(j=0;j<3;j++) l[i] += fm[i][j]*g[j]; | |
382 | // g = R l + translation | |
383 | } // end for i | |
384 | return; | |
385 | } | |
386 | //---------------------------------------------------------------------- | |
387 | void AliITSgeomMatrix::LtoGPosition(const Double_t l[3],Double_t g[3]){ | |
388 | //////////////////////////////////////////////////////////////////////// | |
389 | // Returns the global coordinates given the local coordinates [cm]. | |
390 | //////////////////////////////////////////////////////////////////////// | |
391 | Int_t i,j; | |
392 | ||
393 | for(i=0;i<3;i++){ | |
394 | g[i] = 0.0; | |
395 | for(j=0;j<3;j++) g[i] += fm[j][i]*l[j]; | |
396 | g[i] += ftran[i]; | |
397 | // g = R^t l + translation | |
398 | } // end for i | |
399 | return; | |
400 | } | |
401 | //---------------------------------------------------------------------- | |
402 | void AliITSgeomMatrix::GtoLMomentum(const Double_t g[3],Double_t l[3]){ | |
403 | //////////////////////////////////////////////////////////////////////// | |
404 | // Returns the local coordinates of the momentum given the global | |
405 | // coordinates of the momentum. It transforms just like GtoLPosition | |
406 | // except that the translation vector is zero. | |
407 | //////////////////////////////////////////////////////////////////////// | |
408 | Int_t i,j; | |
409 | ||
410 | for(i=0;i<3;i++){ | |
411 | l[i] = 0.0; | |
412 | for(j=0;j<3;j++) l[i] += fm[i][j]*g[j]; | |
413 | // g = R l | |
414 | } // end for i | |
415 | return; | |
416 | } | |
417 | //---------------------------------------------------------------------- | |
418 | void AliITSgeomMatrix::LtoGMomentum(const Double_t l[3],Double_t g[3]){ | |
419 | //////////////////////////////////////////////////////////////////////// | |
420 | // Returns the Global coordinates of the momentum given the local | |
421 | // coordinates of the momentum. It transforms just like LtoGPosition | |
422 | // except that the translation vector is zero. | |
423 | //////////////////////////////////////////////////////////////////////// | |
424 | Int_t i,j; | |
425 | ||
426 | for(i=0;i<3;i++){ | |
427 | g[i] = 0.0; | |
428 | for(j=0;j<3;j++) g[i] += fm[j][i]*l[j]; | |
429 | // g = R^t l | |
430 | } // end for i | |
431 | return; | |
432 | } | |
433 | //---------------------------------------------------------------------- | |
8d5bd3f9 | 434 | void AliITSgeomMatrix::GtoLPositionError( Double_t g[3][3], |
df5240ea | 435 | Double_t l[3][3]){ |
436 | //////////////////////////////////////////////////////////////////////// | |
437 | // Given an Uncertainty matrix in Global coordinates it is rotated so that | |
438 | // its representation in local coordinates can be returned. There is no | |
439 | // effect due to the translation vector or its uncertainty. | |
440 | //////////////////////////////////////////////////////////////////////// | |
441 | Int_t i,j,k,m; | |
442 | ||
ecb0c8bc | 443 | for(i=0;i<3;i++)for(m=0;m<3;m++){ |
444 | l[i][m] = 0.0; | |
445 | for(j=0;j<3;j++)for(k=0;k<3;k++) | |
446 | l[i][m] += fm[j][i]*g[j][k]*fm[k][m]; | |
447 | } // end for i,m | |
448 | // g = R^t l R | |
df5240ea | 449 | return; |
450 | } | |
451 | //---------------------------------------------------------------------- | |
8d5bd3f9 | 452 | void AliITSgeomMatrix::LtoGPositionError( Double_t l[3][3], |
df5240ea | 453 | Double_t g[3][3]){ |
454 | //////////////////////////////////////////////////////////////////////// | |
455 | // Given an Uncertainty matrix in Local coordinates it is rotated so that | |
456 | // its representation in global coordinates can be returned. There is no | |
457 | // effect due to the translation vector or its uncertainty. | |
458 | //////////////////////////////////////////////////////////////////////// | |
459 | Int_t i,j,k,m; | |
460 | ||
ecb0c8bc | 461 | for(i=0;i<3;i++)for(m=0;m<3;m++){ |
462 | g[i][m] = 0.0; | |
463 | for(j=0;j<3;j++)for(k=0;k<3;k++) | |
464 | g[i][m] += fm[i][j]*l[j][k]*fm[m][k]; | |
465 | } // end for i,m | |
466 | // g = R l R^t | |
df5240ea | 467 | return; |
468 | } | |
469 | //---------------------------------------------------------------------- | |
470 | void AliITSgeomMatrix::GtoLPositionTracking(const Double_t g0[3], | |
471 | Double_t l[3]){ | |
472 | //////////////////////////////////////////////////////////////////////// | |
473 | // A slightly different coordinate system is used when tracking. | |
474 | // This coordinate system is only relevant when the geometry represents | |
475 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
476 | // alone but X -> -Y and Y -> X such that X always points out of the | |
477 | // ITS Cylinder for every layer including layer 1 (where the detector | |
478 | // are mounted upside down). | |
479 | //Begin_Html | |
480 | /* | |
481 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
482 | */ | |
483 | //End_Html | |
484 | //////////////////////////////////////////////////////////////////////// | |
485 | Double_t l0[3]; | |
486 | ||
487 | this->GtoLPosition(g0,l0); | |
488 | if(fid[0]==1){ // for layer 1 the detector are flipped upside down | |
489 | // with respect to the others. | |
490 | l[0] = +l0[1]; | |
491 | l[1] = -l0[0]; | |
492 | l[2] = +l0[2]; | |
493 | }else{ | |
494 | l[0] = -l0[1]; | |
495 | l[1] = +l0[0]; | |
496 | l[2] = +l0[2]; | |
497 | } // end if | |
498 | return; | |
499 | } | |
500 | //---------------------------------------------------------------------- | |
501 | void AliITSgeomMatrix::LtoGPositionTracking(const Double_t l[3], | |
502 | Double_t g[3]){ | |
503 | //////////////////////////////////////////////////////////////////////// | |
504 | // A slightly different coordinate system is used when tracking. | |
505 | // This coordinate system is only relevant when the geometry represents | |
506 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
507 | // alone but X -> -Y and Y -> X such that X always points out of the | |
508 | // ITS Cylinder for every layer including layer 1 (where the detector | |
509 | // are mounted upside down). | |
510 | //Begin_Html | |
511 | /* | |
512 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
513 | */ | |
514 | //End_Html | |
515 | //////////////////////////////////////////////////////////////////////// | |
516 | Double_t l0[3]; | |
517 | ||
518 | if(fid[0]==1){ // for layer 1 the detector are flipped upside down | |
519 | // with respect to the others. | |
520 | l0[0] = -l[1]; | |
521 | l0[1] = +l[0]; | |
522 | l0[2] = +l[2]; | |
523 | }else{ | |
524 | l0[0] = +l[1]; | |
525 | l0[1] = -l[0]; | |
526 | l0[2] = +l[2]; | |
527 | } // end if | |
528 | this->LtoGPosition(l0,g); | |
529 | return; | |
530 | } | |
531 | //---------------------------------------------------------------------- | |
532 | void AliITSgeomMatrix::GtoLMomentumTracking(const Double_t g[3], | |
533 | Double_t l[3]){ | |
534 | //////////////////////////////////////////////////////////////////////// | |
535 | // A slightly different coordinate system is used when tracking. | |
536 | // This coordinate system is only relevant when the geometry represents | |
537 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
538 | // alone but X -> -Y and Y -> X such that X always points out of the | |
539 | // ITS Cylinder for every layer including layer 1 (where the detector | |
540 | // are mounted upside down). | |
541 | //Begin_Html | |
542 | /* | |
543 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
544 | */ | |
545 | //End_Html | |
546 | //////////////////////////////////////////////////////////////////////// | |
547 | Double_t l0[3]; | |
548 | ||
549 | this->GtoLMomentum(g,l0); | |
550 | if(fid[0]==1){ // for layer 1 the detector are flipped upside down | |
551 | // with respect to the others. | |
552 | l[0] = +l0[1]; | |
553 | l[1] = -l0[0]; | |
554 | l[2] = +l0[2]; | |
555 | }else{ | |
556 | l[0] = -l0[1]; | |
557 | l[1] = +l0[0]; | |
558 | l[2] = +l0[2]; | |
559 | } // end if | |
560 | return; | |
561 | return; | |
562 | } | |
563 | //---------------------------------------------------------------------- | |
564 | void AliITSgeomMatrix::LtoGMomentumTracking(const Double_t l[3], | |
565 | Double_t g[3]){ | |
566 | //////////////////////////////////////////////////////////////////////// | |
567 | // A slightly different coordinate system is used when tracking. | |
568 | // This coordinate system is only relevant when the geometry represents | |
569 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
570 | // alone but X -> -Y and Y -> X such that X always points out of the | |
571 | // ITS Cylinder for every layer including layer 1 (where the detector | |
572 | // are mounted upside down). | |
573 | //Begin_Html | |
574 | /* | |
575 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
576 | */ | |
577 | //End_Html | |
578 | //////////////////////////////////////////////////////////////////////// | |
579 | Double_t l0[3]; | |
580 | ||
581 | if(fid[0]==1){ // for layer 1 the detector are flipped upside down | |
582 | // with respect to the others. | |
583 | l0[0] = -l[1]; | |
584 | l0[1] = +l[0]; | |
585 | l0[2] = +l[2]; | |
586 | }else{ | |
587 | l0[0] = +l[1]; | |
588 | l0[1] = -l[0]; | |
589 | l0[2] = +l[2]; | |
590 | } // end if | |
591 | this->LtoGMomentum(l0,g); | |
592 | return; | |
593 | } | |
594 | //---------------------------------------------------------------------- | |
8d5bd3f9 | 595 | void AliITSgeomMatrix::GtoLPositionErrorTracking( Double_t g[3][3], |
df5240ea | 596 | Double_t l[3][3]){ |
597 | //////////////////////////////////////////////////////////////////////// | |
598 | // A slightly different coordinate system is used when tracking. | |
599 | // This coordinate system is only relevant when the geometry represents | |
600 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
601 | // alone but X -> -Y and Y -> X such that X always points out of the | |
602 | // ITS Cylinder for every layer including layer 1 (where the detector | |
603 | // are mounted upside down). | |
604 | //Begin_Html | |
605 | /* | |
606 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
607 | */ | |
608 | //End_Html | |
609 | //////////////////////////////////////////////////////////////////////// | |
610 | Int_t i,j,k,m; | |
85f1e34a | 611 | Double_t rt[3][3]; |
612 | Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}}; | |
613 | Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}}; | |
df5240ea | 614 | |
615 | if(fid[0]==1) for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++) | |
85f1e34a | 616 | rt[i][k] = a0[i][j]*fm[j][k]; |
df5240ea | 617 | else for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++) |
85f1e34a | 618 | rt[i][k] = a1[i][j]*fm[j][k]; |
ecb0c8bc | 619 | for(i=0;i<3;i++)for(m=0;m<3;m++){ |
620 | l[i][m] = 0.0; | |
621 | for(j=0;j<3;j++)for(k=0;k<3;k++) | |
622 | l[i][m] += rt[j][i]*g[j][k]*rt[k][m]; | |
623 | } // end for i,m | |
624 | // g = R^t l R | |
df5240ea | 625 | return; |
626 | } | |
627 | //---------------------------------------------------------------------- | |
8d5bd3f9 | 628 | void AliITSgeomMatrix::LtoGPositionErrorTracking( Double_t l[3][3], |
df5240ea | 629 | Double_t g[3][3]){ |
630 | //////////////////////////////////////////////////////////////////////// | |
631 | // A slightly different coordinate system is used when tracking. | |
632 | // This coordinate system is only relevant when the geometry represents | |
633 | // the cylindrical ALICE ITS geometry. For tracking the Z axis is left | |
634 | // alone but X -> -Y and Y -> X such that X always points out of the | |
635 | // ITS Cylinder for every layer including layer 1 (where the detector | |
636 | // are mounted upside down). | |
637 | //Begin_Html | |
638 | /* | |
639 | <img src="picts/ITS/AliITSgeomMatrix_T1.gif"> | |
640 | */ | |
641 | //End_Html | |
642 | //////////////////////////////////////////////////////////////////////// | |
643 | Int_t i,j,k,m; | |
85f1e34a | 644 | Double_t rt[3][3]; |
645 | Double_t a0[3][3] = {{0.,+1.,0.},{-1.,0.,0.},{0.,0.,+1.}}; | |
646 | Double_t a1[3][3] = {{0.,-1.,0.},{+1.,0.,0.},{0.,0.,+1.}}; | |
df5240ea | 647 | |
648 | if(fid[0]==1) for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++) | |
85f1e34a | 649 | rt[i][k] = a0[i][j]*fm[j][k]; |
df5240ea | 650 | else for(i=0;i<3;i++)for(j=0;j<3;j++)for(k=0;k<3;k++) |
85f1e34a | 651 | rt[i][k] = a1[i][j]*fm[j][k]; |
ecb0c8bc | 652 | for(i=0;i<3;i++)for(m=0;m<3;m++){ |
653 | g[i][m] = 0.0; | |
654 | for(j=0;j<3;j++)for(k=0;k<3;k++) | |
655 | g[i][m] += rt[i][j]*l[j][k]*rt[m][k]; | |
656 | } // end for i,m | |
657 | // g = R l R^t | |
df5240ea | 658 | return; |
659 | } | |
660 | //---------------------------------------------------------------------- | |
661 | void AliITSgeomMatrix::PrintTitles(ostream *os){ | |
662 | //////////////////////////////////////////////////////////////////////// | |
663 | // Standard output format for this class but it includes variable | |
664 | // names and formatting that makes it easer to read. | |
665 | //////////////////////////////////////////////////////////////////////// | |
666 | Int_t i,j; | |
667 | ||
668 | *os << "fDetectorIndex=" << fDetectorIndex << " fid[3]={"; | |
669 | for(i=0;i<3;i++) *os << fid[i] << " "; | |
670 | *os << "} frot[3]={"; | |
671 | for(i=0;i<3;i++) *os << frot[i] << " "; | |
672 | *os << "} ftran[3]={"; | |
673 | for(i=0;i<3;i++) *os << ftran[i] << " "; | |
674 | *os << "} fm[3][3]={"; | |
675 | for(i=0;i<3;i++){for(j=0;j<3;j++){ *os << fm[i][j] << " ";} *os <<"}{";} | |
676 | *os << "}" << endl; | |
677 | return; | |
678 | } | |
679 | //---------------------------------------------------------------------- | |
8253cd9a | 680 | void AliITSgeomMatrix::PrintComment(ostream *os){ |
681 | //////////////////////////////////////////////////////////////////////// | |
682 | // output format used by Print.. | |
683 | //////////////////////////////////////////////////////////////////////// | |
684 | *os << "fDetectorIndex fid[0] fid[1] fid[2] ftran[0] ftran[1] ftran[2] "; | |
685 | *os << "fm[0][0] fm[0][1] fm[0][2] fm[1][0] fm[1][1] fm[1][2] "; | |
686 | *os << "fm[2][0] fm[2][1] fm[2][2] "; | |
687 | return; | |
688 | } | |
689 | //---------------------------------------------------------------------- | |
690 | void AliITSgeomMatrix::Print(ostream *os){ | |
df5240ea | 691 | //////////////////////////////////////////////////////////////////////// |
692 | // Standard output format for this class. | |
693 | //////////////////////////////////////////////////////////////////////// | |
694 | Int_t i,j; | |
431a7819 | 695 | #if defined __GNUC__ |
696 | #if __GNUC__ > 2 | |
697 | ios::fmtflags fmt; | |
698 | #else | |
699 | Int_t fmt; | |
700 | #endif | |
94831058 | 701 | #else |
702 | #if defined __ICC | |
703 | ios::fmtflags fmt; | |
431a7819 | 704 | #else |
31b8cd63 | 705 | Int_t fmt; |
94831058 | 706 | #endif |
431a7819 | 707 | #endif |
df5240ea | 708 | |
8253cd9a | 709 | fmt = os->setf(ios::scientific); // set scientific floating point output |
df5240ea | 710 | *os << fDetectorIndex << " "; |
711 | for(i=0;i<3;i++) *os << fid[i] << " "; | |
8253cd9a | 712 | // for(i=0;i<3;i++) *os << frot[i] << " "; // Redundant with fm[][]. |
713 | for(i=0;i<3;i++) *os << setprecision(16) << ftran[i] << " "; | |
714 | for(i=0;i<3;i++)for(j=0;j<3;j++) *os << setprecision(16) << | |
715 | fm[i][j] << " "; | |
df5240ea | 716 | *os << endl; |
8253cd9a | 717 | os->flags(fmt); // reset back to old formating. |
df5240ea | 718 | return; |
719 | } | |
720 | //---------------------------------------------------------------------- | |
8253cd9a | 721 | void AliITSgeomMatrix::Read(istream *is){ |
df5240ea | 722 | //////////////////////////////////////////////////////////////////////// |
723 | // Standard input format for this class. | |
724 | //////////////////////////////////////////////////////////////////////// | |
725 | Int_t i,j; | |
726 | ||
727 | *is >> fDetectorIndex; | |
728 | for(i=0;i<3;i++) *is >> fid[i]; | |
8253cd9a | 729 | // for(i=0;i<3;i++) *is >> frot[i]; // Redundant with fm[][]. |
df5240ea | 730 | for(i=0;i<3;i++) *is >> ftran[i]; |
731 | for(i=0;i<3;i++)for(j=0;j<3;j++) *is >> fm[i][j]; | |
8253cd9a | 732 | AngleFromMatrix(); // compute angles frot[]. |
d8cc8493 | 733 | fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]); |
734 | fCylPhi = TMath::ATan2(ftran[1],ftran[0]); | |
735 | if(fCylPhi<0.0) fCylPhi += TMath::Pi(); | |
df5240ea | 736 | return; |
737 | } | |
d8cc8493 | 738 | //______________________________________________________________________ |
739 | void AliITSgeomMatrix::Streamer(TBuffer &R__b){ | |
740 | // Stream an object of class AliITSgeomMatrix. | |
741 | ||
742 | if (R__b.IsReading()) { | |
743 | AliITSgeomMatrix::Class()->ReadBuffer(R__b, this); | |
744 | fCylR = TMath::Sqrt(ftran[0]*ftran[0]+ftran[1]*ftran[1]); | |
745 | fCylPhi = TMath::ATan2(ftran[1],ftran[0]); | |
746 | this->AngleFromMatrix(); | |
747 | if(fCylPhi<0.0) fCylPhi += TMath::Pi(); | |
748 | } else { | |
749 | AliITSgeomMatrix::Class()->WriteBuffer(R__b, this); | |
750 | } | |
751 | } | |
df5240ea | 752 | //---------------------------------------------------------------------- |
753 | ostream &operator<<(ostream &os,AliITSgeomMatrix &p){ | |
754 | //////////////////////////////////////////////////////////////////////// | |
755 | // Standard output streaming function. | |
756 | //////////////////////////////////////////////////////////////////////// | |
757 | ||
8253cd9a | 758 | p.Print(&os); |
df5240ea | 759 | return os; |
760 | } | |
761 | //---------------------------------------------------------------------- | |
762 | istream &operator>>(istream &is,AliITSgeomMatrix &r){ | |
763 | //////////////////////////////////////////////////////////////////////// | |
764 | // Standard input streaming function. | |
765 | //////////////////////////////////////////////////////////////////////// | |
766 | ||
8253cd9a | 767 | r.Read(&is); |
df5240ea | 768 | return is; |
769 | } | |
8253cd9a | 770 | //---------------------------------------------------------------------- |