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1 | #ifndef ALIITSGEOM_H | |
2 | #define ALIITSGEOM_H | |
3 | /* Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
4 | * See cxx source for full Copyright notice */ | |
5 | ||
6 | /* $Id$ */ | |
7 | ||
8 | ///////////////////////////////////////////////////////////////////////// | |
9 | // ITS geometry manipulation routines. | |
10 | // Created April 15 1999. | |
11 | // version: 0.0.0 | |
12 | // By: Bjorn S. Nilsen | |
13 | // | |
14 | // A package of geometry routines to do transformations between | |
15 | // local, detector active area, and ALICE global coordinate system in such | |
16 | // a way as to allow for detector alignment studies and the like. All of | |
17 | // the information needed to do the coordinate transformation are kept in | |
18 | // a specialized structure for ease of implementation. | |
19 | ///////////////////////////////////////////////////////////////////////// | |
20 | #include <Riostream.h> | |
21 | #include <TObject.h> | |
22 | #include <TObjArray.h> | |
23 | #include <TVector.h> | |
24 | #include <TString.h> | |
25 | #include <TArrayI.h> | |
26 | #include <TMath.h> | |
27 | // | |
28 | #include "AliITSgeomMatrix.h" | |
29 | ||
30 | typedef enum {kND=-1,kSPD=0, kSDD=1, kSSD=2, kSSDp=3,kSDDp=4} AliITSDetector; | |
31 | ||
32 | //_______________________________________________________________________ | |
33 | ||
34 | class AliITSgeom : public TObject { | |
35 | ||
36 | public: | |
37 | AliITSgeom(); // Default constructor | |
38 | AliITSgeom(const char *filename); // Constructor | |
39 | AliITSgeom(Int_t itype,Int_t nlayers,const Int_t *nlads,const Int_t *ndets, | |
40 | Int_t nmods); // Constructor | |
41 | AliITSgeom(const AliITSgeom &source); // Copy constructor | |
42 | AliITSgeom& operator=(const AliITSgeom &source);// = operator | |
43 | virtual ~AliITSgeom(); // Default destructor | |
44 | // Zero and reinitilizes this class. | |
45 | void Init(Int_t itype,Int_t nlayers,const Int_t *nlads, | |
46 | const Int_t *ndets,Int_t mods); | |
47 | // this function allocates a AliITSgeomMatrix for a particular module. | |
48 | void CreateMatrix(Int_t mod,Int_t lay,Int_t lad,Int_t det, | |
49 | AliITSDetector idet,const Double_t tran[3], | |
50 | const Double_t rot[10]); | |
51 | void ReadNewFile(const char *filename); // Constructor for new format. | |
52 | void WriteNewFile(const char *filename)const; // Output for new format. | |
53 | // Getters | |
54 | Int_t GetTransformationType() const {return fTrans;} | |
55 | // | |
56 | // returns kTRUE if the transformation defined by this class is | |
57 | // for Global GEANT coordinate system to the local GEANT coordinate system | |
58 | // of the detector. These are the transformation used by GEANT. | |
59 | Bool_t IsGeantToGeant() const {return (fTrans == 0);} | |
60 | // returns kTRUE if the transformation defined by this class is | |
61 | // for Global GEANT coordinate system to the local "Tracking" coordinate | |
62 | // system of the detector. These are the transformation used by the | |
63 | // Tracking code. | |
64 | Bool_t IsGeantToTracking() const {return ((fTrans&&0xfffe)!= 0);} | |
65 | // returns kTRUE if the transformation defined by this class is | |
66 | // for Global GEANT coordinate system to the local GEANT coordinate system | |
67 | // of the detector but may have been displaced by some typically small | |
68 | // amount. These are modified transformation similar to that used by GEANT. | |
69 | Bool_t IsGeantToDisplaced() const {return ((fTrans&&0xfffd)!= 0);} | |
70 | // returns kTRUE if the shape defined by ishape has been defined in this | |
71 | // set of transformations. Typical values of ishape are kSPD, kSDD, kSSD, | |
72 | // kSSD2. | |
73 | Bool_t IsShapeDefined(Int_t ishape)const { | |
74 | return ((fShape.At(ishape))!=0);} | |
75 | // | |
76 | // This function returns a pointer to the particular AliITSgeomMatrix | |
77 | // class for a specific module index. | |
78 | AliITSgeomMatrix *GetGeomMatrix(Int_t index){if(index<fGm.GetSize()&& | |
79 | index>=0) | |
80 | return (AliITSgeomMatrix*)(fGm.At(index));else | |
81 | Error("GetGeomMatrix","index=%d<0||>=GetSize()=%d", | |
82 | index,fGm.GetSize());return 0;} | |
83 | AliITSgeomMatrix *GetGeomMatrix(Int_t index)const{if(index<fGm.GetSize() | |
84 | &&index>=0) | |
85 | return (AliITSgeomMatrix*)(fGm.At(index));else | |
86 | Error("GetGeomMatrix","index=%d<0||>=GetSize()=%d", | |
87 | index,fGm.GetSize());return 0;} | |
88 | // This function find and return the number of detector types only. | |
89 | Int_t GetNDetTypes()const{Int_t max;return GetNDetTypes(max);}; | |
90 | // This function find and return the number of detector types and the | |
91 | // maximum det type value. | |
92 | Int_t GetNDetTypes(Int_t &max)const; | |
93 | // This function finds and return the number of detector types and the | |
94 | // and the number of each type in the TArrayI and their types. | |
95 | Int_t GetNDetTypes(TArrayI &maxs,AliITSDetector *types)const; | |
96 | // This function returns the number of detectors/ladder for a give | |
97 | // layer. In particular it returns fNdet[layer-1]. | |
98 | Int_t GetNdetectors(Int_t lay) const {return fNdet[lay-1];} | |
99 | // This function returns the number of ladders for a give layer. In | |
100 | // particular it returns fNlad[layer-1]. | |
101 | Int_t GetNladders(Int_t lay) const {return fNlad[lay-1];}; | |
102 | // This function returns the number of layers defined in the ITS | |
103 | // geometry. In particular it returns fNlayers. | |
104 | Int_t GetNlayers() const {return fNlayers;} | |
105 | Int_t GetModuleIndex(Int_t lay,Int_t lad,Int_t det)const; | |
106 | // This function returns the module index number given the layer, | |
107 | // ladder and detector numbers put into the array id[3]. | |
108 | Int_t GetModuleIndex(const Int_t *id)const{ | |
109 | return GetModuleIndex(id[0],id[1],id[2]);} | |
110 | void GetModuleId(Int_t index,Int_t &lay,Int_t &lad,Int_t &det)const; | |
111 | // Returns the detector type | |
112 | //Int_t GetModuleType(Int_t index)const{ | |
113 | // return GetGeomMatrix(index)->GetDetectorIndex();} | |
114 | AliITSDetector GetModuleType(Int_t index)const{ | |
115 | return (AliITSDetector)(GetGeomMatrix(index)->GetDetectorIndex());} | |
116 | // Returns the detector type as a string | |
117 | const char * GetModuleTypeName(Int_t index)const{ | |
118 | return GetDetectorTypeName(GetModuleType(index));} | |
119 | // Returns the detector type as a string | |
120 | const char * GetDetectorTypeName(Int_t index)const{switch(index) { | |
121 | case kSPD : return "kSPD" ; case kSDD : return "kSDD" ; | |
122 | case kSSD : return "kSSD" ; case kSSDp: return "kSSDp"; | |
123 | case kSDDp: return "kSDDp"; default : return "Undefined";};} | |
124 | // | |
125 | Int_t GetStartDet(Int_t dtype )const; | |
126 | Int_t GetLastDet(Int_t dtype)const; | |
127 | // Returns the starting module index number for SPD detector, | |
128 | // assuming the modules are placed in the "standard" cylindrical | |
129 | // ITS structure. | |
130 | Int_t GetStartSPD()const{return GetStartDet(kSPD);} | |
131 | // Returns the ending module index number for SPD detector, | |
132 | // assuming the modules are placed in the "standard" cylindrical | |
133 | // ITS structure. | |
134 | Int_t GetLastSPD()const{return GetLastDet(kSPD);} | |
135 | // Returns the starting module index number for SDD detector, | |
136 | // assuming the modules are placed in the "standard" cylindrical | |
137 | // ITS structure. | |
138 | Int_t GetStartSDD()const{return GetStartDet(kSDD);} | |
139 | // Returns the ending module index number for SDD detector, | |
140 | // assuming the modules are placed in the "standard" cylindrical | |
141 | // ITS structure. | |
142 | Int_t GetLastSDD()const{return GetLastDet(kSDD);} | |
143 | // Returns the starting module index number for SSD detector, | |
144 | // assuming the modules are placed in the "standard" cylindrical | |
145 | // ITS structure. | |
146 | Int_t GetStartSSD()const{return GetStartDet(kSSD);} | |
147 | // Returns the ending module index number for SSD detector, | |
148 | // assuming the modules are placed in the "standard" cylindrical | |
149 | // ITS structure. | |
150 | Int_t GetLastSSD()const{return GetLastDet(kSSD);} | |
151 | // Returns the last module index number. | |
152 | Int_t GetIndexMax() const {return fNmodules;} | |
153 | // | |
154 | // This function returns the rotation angles for a give module | |
155 | // in the Double point array ang[3]. The angles are in radians | |
156 | void GetAngles(Int_t index,Double_t *ang)const{ | |
157 | GetGeomMatrix(index)->GetAngles(ang);} | |
158 | // This function returns the rotation angles for a give module | |
159 | // in the three floating point variables provided. rx = frx, | |
160 | // fy = fry, rz = frz. The angles are in radians | |
161 | void GetAngles(Int_t index,Float_t &rx,Float_t &ry,Float_t &rz)const{ | |
162 | Double_t a[3];GetAngles(index,a);rx = a[0];ry = a[1];rz = a[2];} | |
163 | // This function returns the rotation angles for a give detector on | |
164 | // a give ladder in a give layer in the three floating point variables | |
165 | // provided. rx = frx, fy = fry, rz = frz. The angles are in radians | |
166 | void GetAngles(Int_t lay,Int_t lad,Int_t det, | |
167 | Float_t &rx,Float_t &ry,Float_t &rz)const{ | |
168 | GetAngles(GetModuleIndex(lay,lad,det),rx,ry,rz);} | |
169 | // | |
170 | // This function returns the 6 GEANT rotation angles for a give | |
171 | // module in the double point array ang[3]. The angles are in degrees | |
172 | void GetGeantAngles(Int_t index,Double_t *ang)const{ | |
173 | GetGeomMatrix(index)->SixAnglesFromMatrix(ang);} | |
174 | // | |
175 | // This function returns the Cartesian translation for a give | |
176 | // module in the Double array t[3]. The units are | |
177 | // those of the Monte Carlo, generally cm. | |
178 | void GetTrans(Int_t index,Double_t *t)const{ | |
179 | GetGeomMatrix(index)->GetTranslation(t);} | |
180 | // This function returns the Cartesian translation for a give | |
181 | // module index in the three floating point variables provided. | |
182 | // x = fx0, y = fy0, z = fz0. The units are those of the Mont | |
183 | // Carlo, generally cm. | |
184 | void GetTrans(Int_t index,Float_t &x,Float_t &y,Float_t &z)const{ | |
185 | Double_t t[3];GetTrans(index,t);x = t[0];y = t[1];z = t[2];} | |
186 | // This function returns the Cartesian translation for a give | |
187 | // detector on a give ladder in a give layer in the three floating | |
188 | // point variables provided. x = fx0, y = fy0, z = fz0. The units are | |
189 | // those of the Monte Carlo, generally cm. | |
190 | void GetTrans(Int_t lay,Int_t lad,Int_t det, | |
191 | Float_t &x,Float_t &y,Float_t &z)const{ | |
192 | GetTrans(GetModuleIndex(lay,lad,det),x,y,z);} | |
193 | // | |
194 | // This function returns the Cartesian translation for a give | |
195 | // module in the Double array t[3]. The units are | |
196 | // those of the Monte Carlo, generally cm. | |
197 | void GetTransCyln(Int_t index,Double_t *t)const{ | |
198 | GetGeomMatrix(index)->GetTranslationCylinderical(t);} | |
199 | // This function returns the Cartesian translation for a give | |
200 | // module index in the three floating point variables provided. | |
201 | // x = fx0, y = fy0, z = fz0. The units are those of the Mont | |
202 | // Carlo, generally cm. | |
203 | void GetTransCyln(Int_t index,Float_t &x,Float_t &y,Float_t &z)const{ | |
204 | Double_t t[3];GetTransCyln(index,t);x = t[0];y = t[1];z = t[2];} | |
205 | // This function returns the Cartesian translation for a give | |
206 | // detector on a give ladder in a give layer in the three floating | |
207 | // point variables provided. x = fx0, y = fy0, z = fz0. The units are | |
208 | // those of the Monte Carlo, generally cm. | |
209 | void GetTransCyln(Int_t lay,Int_t lad,Int_t det, | |
210 | Float_t &x,Float_t &y,Float_t &z)const{ | |
211 | GetTransCyln(GetModuleIndex(lay,lad,det),x,y,z);} | |
212 | // | |
213 | // This function returns the Cartesian translation [cm] and the | |
214 | // 6 GEANT rotation angles [degrees]for a given layer ladder and | |
215 | // detector number, in the TVector x (at least 9 elements large). | |
216 | // This function is required to be in-lined for speed. | |
217 | void GetCenterThetaPhi(Int_t lay,Int_t lad,Int_t det,TVector &x)const{ | |
218 | Double_t t[3],a[6];Int_t i=GetModuleIndex(lay,lad,det);GetTrans(i,t); | |
219 | GetGeantAngles(i,a);x(0)=t[0];x(1)=t[1];x(2)=t[2];x(3)=a[0];x(4)=a[1]; | |
220 | x(5)=a[2];x(6)=a[3];x(7)=a[4];x(8)=a[5];} | |
221 | // | |
222 | // This function returns the rotation matrix in Double | |
223 | // precision for a given module. | |
224 | void GetRotMatrix(Int_t index,Double_t mat[3][3])const{ | |
225 | GetGeomMatrix(index)->GetMatrix(mat);} | |
226 | // This function returns the rotation matrix in a Double | |
227 | // precision pointer for a given module. mat[i][j] => mat[3*i+j]. | |
228 | void GetRotMatrix(Int_t index,Double_t *mat)const{ | |
229 | Double_t rot[3][3];GetRotMatrix(index,rot); | |
230 | for(Int_t i=0;i<3;i++)for(Int_t j=0;j<3;j++) mat[3*i+j] = rot[i][j];} | |
231 | // This function returns the rotation matrix in a floating | |
232 | // precision pointer for a given layer ladder and detector module. | |
233 | // mat[i][j] => mat[3*i+j]. | |
234 | void GetRotMatrix(Int_t lay,Int_t lad,Int_t det,Float_t *mat)const{ | |
235 | GetRotMatrix(GetModuleIndex(lay,lad,det),mat);} | |
236 | // This function returns the rotation matrix in a Double | |
237 | // precision pointer for a given layer ladder and detector module. | |
238 | // mat[i][j] => mat[3*i+j]. | |
239 | void GetRotMatrix(Int_t lay,Int_t lad,Int_t det,Double_t *mat)const{ | |
240 | GetRotMatrix(GetModuleIndex(lay,lad,det),mat);} | |
241 | // This function returns the rotation matrix in a floating | |
242 | // precision pointer for a given module. mat[i][j] => mat[3*i+j]. | |
243 | void GetRotMatrix(Int_t index,Float_t *mat)const{ | |
244 | Double_t rot[3][3]; | |
245 | GetGeomMatrix(index)->GetMatrix(rot); | |
246 | for(Int_t i=0;i<3;i++)for(Int_t j=0;j<3;j++) mat[3*i+j] = rot[i][j];} | |
247 | // This function sets the rotation matrix in a Double | |
248 | // precision pointer for a given module. mat[i][j] => mat[3*i+j]. | |
249 | void SetRotMatrix(Int_t index,Double_t *mat){Double_t rot[3][3]; | |
250 | for(Int_t i=0;i<3;i++)for(Int_t j=0;j<3;j++) rot[i][j]=mat[3*i+j]; | |
251 | GetGeomMatrix(index)->SetMatrix(rot);} | |
252 | // Return the normal for a specific module | |
253 | void GetGlobalNormal(Int_t index,Double_t n[3]){ | |
254 | GetGeomMatrix(index)->GetGlobalNormal(n[0],n[1],n[2]);} | |
255 | // | |
256 | // Will define fShape if it isn't already defined. | |
257 | void DefineShapes(Int_t size=5){fShape.Expand(size);} | |
258 | // this function returns a pointer to the array of detector | |
259 | // descriptions, Segmentation. | |
260 | virtual TObjArray *GetShapeArray(){return &fShape;}; | |
261 | // this function returns a pointer to the class describing a particular | |
262 | // detector type based on AliITSDetector value. This will return a pointer | |
263 | // to one of the classes AliITSgeomSPD, AliITSgeomSDD, or | |
264 | // AliITSgeomSSD, for example. | |
265 | virtual TObject *GetShape(AliITSDetector idet){ | |
266 | return fShape.At((Int_t)idet);}; | |
267 | virtual TObject *GetShape(AliITSDetector idet)const{ | |
268 | return fShape.At((Int_t)idet);}; | |
269 | // This function returns a pointer to the class describing the | |
270 | // detector for a particular module index. This will return a pointer | |
271 | // to one of the classes AliITSgeomSPD, AliITSgeomSDD, | |
272 | // or AliITSgeomSSD, for example. | |
273 | virtual TObject *GetShape(Int_t index){ | |
274 | return fShape.At(GetGeomMatrix(index)->GetDetectorIndex());} | |
275 | virtual TObject *GetShape(Int_t index)const{ | |
276 | return fShape.At(GetGeomMatrix(index)->GetDetectorIndex());} | |
277 | // This function returns a pointer to the class describing the | |
278 | // detector for a particular layer ladder and detector numbers. This | |
279 | // will return a pointer to one of the classes AliITSgeomSPD, | |
280 | // AliITSgeomSDD, or AliITSgeomSSD, for example. | |
281 | virtual TObject *GetShape(Int_t lay,Int_t lad,Int_t det) | |
282 | {return GetShape(GetModuleIndex(lay,lad,det));} | |
283 | // Determine if a give point is inside of a detectors sensitive | |
284 | // volume (as defined by these transformations). | |
285 | virtual Bool_t IsInside(Int_t module,Double_t point[3])const; | |
286 | // | |
287 | // Setters | |
288 | // Sets the rotation angles and matrix for a give module index | |
289 | // via the double precision array a[3] [radians]. | |
290 | void SetByAngles(Int_t index,const Double_t a[]){ | |
291 | GetGeomMatrix(index)->SetAngles(a);} | |
292 | // Sets the rotation angles and matrix for a give module index | |
293 | // via the 3 floating precision variables rx, ry, and rz [radians]. | |
294 | void SetByAngles(Int_t index,Float_t rx, Float_t ry, Float_t rz) { | |
295 | Double_t a[3];a[0] = rx;a[1] = ry;a[2] = rz; | |
296 | GetGeomMatrix(index)->SetAngles(a);} | |
297 | // Sets the rotation angles and matrix for a give layer, ladder, | |
298 | // and detector numbers via the 3 floating precision variables rx, | |
299 | // ry, and rz [radians]. | |
300 | void SetByAngles(Int_t lay,Int_t lad,Int_t det, | |
301 | Float_t rx, Float_t ry, Float_t rz) { | |
302 | SetByAngles(GetModuleIndex(lay,lad,det),rx,ry,rz);} | |
303 | // | |
304 | // Sets the rotation angles and matrix for a give module index | |
305 | // via the Double precision array a[6] [degree]. The angles are those | |
306 | // defined by GEANT 3.12. | |
307 | void SetByGeantAngles(Int_t index,const Double_t *ang){ | |
308 | GetGeomMatrix(index)->MatrixFromSixAngles(ang);} | |
309 | // Sets the rotation angles and matrix for a give layer, ladder | |
310 | // and detector, in the array id[3] via the Double precision array | |
311 | // a[6] [degree]. The angles are those defined by GEANT 3.12. | |
312 | void SetByGeantAngles(const Int_t *id,const Double_t *ang){ | |
313 | SetByGeantAngles(GetModuleIndex(id),ang);} | |
314 | // Sets the rotation angles and matrix for a give layer, ladder | |
315 | // and detector, via the Double precision array a[6] [degree]. The | |
316 | // angles are those defined by GEANT 3.12. | |
317 | void SetByGeantAngles(Int_t lay,Int_t lad,Int_t det, | |
318 | const Double_t *ang){ | |
319 | SetByGeantAngles(GetModuleIndex(lay,lad,det),ang);} | |
320 | // | |
321 | // This function sets a new translation vector, given by the | |
322 | // array x[3], for the Cartesian coordinate transformation | |
323 | // for a give module index. | |
324 | void SetTrans(Int_t index,Double_t x[]){ | |
325 | GetGeomMatrix(index)->SetTranslation(x);} | |
326 | // This function sets a new translation vector, given by the three | |
327 | // variables x, y, and z, for the Cartesian coordinate transformation | |
328 | // for the detector defined by layer, ladder and detector. | |
329 | void SetTrans(Int_t lay,Int_t lad,Int_t det, | |
330 | Float_t x,Float_t y,Float_t z){Double_t t[3]; | |
331 | t[0] = x;t[1] = y;t[2] = z; | |
332 | SetTrans(GetModuleIndex(lay,lad,det),t);} | |
333 | // | |
334 | // This function adds one more shape element to the TObjArray | |
335 | // fShape. It is primarily used in the constructor functions of the | |
336 | // AliITSgeom class. The pointer *shape can be the pointer to any | |
337 | // class that is derived from TObject (this is true for nearly every | |
338 | // ROOT class). This does not appear to be working properly at this time. | |
339 | void AddShape(TObject *shp){fShape.AddLast(shp);} | |
340 | // This function deletes an existing shape element, of type TObject, | |
341 | // and replaces it with the one specified. This is primarily used to | |
342 | // changes the parameters to the geom class for a particular | |
343 | // type of detector. | |
344 | void ReSetShape(Int_t dtype,TObject *shp){ | |
345 | delete (fShape.At(dtype));fShape.AddAt(shp,dtype);} | |
346 | // | |
347 | // transformations | |
348 | // Transforms from the ALICE Global coordinate system | |
349 | // to the detector local coordinate system for the detector | |
350 | // defined by the layer, ladder, and detector numbers. The | |
351 | // global and local coordinate are given in two floating point | |
352 | // arrays g[3], and l[3]. | |
353 | void GtoL(Int_t lay,Int_t lad,Int_t det, | |
354 | const Float_t *g,Float_t *l)const{ | |
355 | GtoL(GetModuleIndex(lay,lad,det),g,l);} | |
356 | // Transforms from the ALICE Global coordinate system | |
357 | // to the detector local coordinate system for the detector | |
358 | // defined by the id[0], id[1], and id[2] numbers. The | |
359 | // global and local coordinate are given in two floating point | |
360 | // arrays g[3], and l[3]. | |
361 | void GtoL(const Int_t *id,const Float_t *g,Float_t *l)const{ | |
362 | GtoL(GetModuleIndex(id),g,l);} | |
363 | // Transforms from the ALICE Global coordinate system | |
364 | // to the detector local coordinate system for the detector | |
365 | // module index number. The global and local coordinate are | |
366 | // given in two floating point arrays g[3], and l[3]. | |
367 | void GtoL(Int_t index,const Float_t *g,Float_t *l)const{ | |
368 | Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i]; | |
369 | GetGeomMatrix(index)->GtoLPosition(dg,dl); | |
370 | for(i=0;i<3;i++) l[i] =dl[i];} | |
371 | // Transforms from the ALICE Global coordinate system | |
372 | // to the detector local coordinate system for the detector | |
373 | // defined by the layer, ladder, and detector numbers. The | |
374 | // global and local coordinate are given in two Double point | |
375 | // arrays g[3], and l[3]. | |
376 | void GtoL(Int_t lay,Int_t lad,Int_t det, | |
377 | const Double_t *g,Double_t *l)const{ | |
378 | GtoL(GetModuleIndex(lay,lad,det),g,l);} | |
379 | // Transforms from the ALICE Global coordinate system | |
380 | // to the detector local coordinate system for the detector | |
381 | // defined by the id[0], id[1], and id[2] numbers. The | |
382 | // global and local coordinate are given in two Double point | |
383 | // arrays g[3], and l[3]. | |
384 | void GtoL(const Int_t *id,const Double_t *g,Double_t *l)const{ | |
385 | GtoL(GetModuleIndex(id),g,l);} | |
386 | // Transforms from the ALICE Global coordinate system | |
387 | // to the detector local coordinate system for the detector | |
388 | // module index number. The global and local coordinate are | |
389 | // given in two Double point arrays g[3], and l[3]. | |
390 | void GtoL(Int_t index,const Double_t g[3],Double_t l[3])const{ | |
391 | GetGeomMatrix(index)->GtoLPosition(g,l);} | |
392 | // | |
393 | // Transforms from the ALICE Global coordinate system | |
394 | // to the detector local coordinate system (used for ITS tracking) | |
395 | // for the detector module index number. The global and local | |
396 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
397 | void GtoLtracking(Int_t index,const Double_t *g,Double_t *l)const{ | |
398 | if(IsGeantToTracking()) GtoL(index,g,l); | |
399 | else GetGeomMatrix(index)->GtoLPositionTracking(g,l);} | |
400 | // Transforms from the ALICE Global coordinate system | |
401 | // to the detector local coordinate system (used for ITS tracking) | |
402 | // for the detector id[3]. The global and local | |
403 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
404 | void GtoLtracking(const Int_t *id,const Double_t *g,Double_t *l)const{ | |
405 | GtoLtracking(GetModuleIndex(id),g,l);} | |
406 | // Transforms from the ALICE Global coordinate system | |
407 | // to the detector local coordinate system (used for ITS tracking) | |
408 | // for the detector layer ladder and detector numbers. The global | |
409 | // and local coordinate are given in two Double point arrays g[3], | |
410 | // and l[3]. | |
411 | void GtoLtracking(Int_t lay,Int_t lad,Int_t det, | |
412 | const Double_t *g,Double_t *l)const{ | |
413 | GtoLtracking(GetModuleIndex(lay,lad,det),g,l);} | |
414 | // | |
415 | // Transforms of momentum types of quantities from the ALICE | |
416 | // Global coordinate system to the detector local coordinate system | |
417 | // for the detector layer ladder and detector numbers. The global | |
418 | // and local coordinate are given in two float point arrays g[3], | |
419 | // and l[3]. | |
420 | void GtoLMomentum(Int_t lay,Int_t lad,Int_t det, | |
421 | const Float_t *g,Float_t *l)const{ | |
422 | GtoLMomentum(GetModuleIndex(lay,lad,det),g,l);} | |
423 | // Transforms of momentum types of quantities from the ALICE | |
424 | // Global coordinate system to the detector local coordinate system | |
425 | // for the detector module index number. The global and local | |
426 | // coordinate are given in two float point arrays g[3], and l[3]. | |
427 | void GtoLMomentum(Int_t index,const Float_t *g,Float_t *l)const{ | |
428 | Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i]; | |
429 | GetGeomMatrix(index)->GtoLMomentum(dg,dl); | |
430 | for(i=0;i<3;i++) l[i] =dl[i];} | |
431 | // Transforms of momentum types of quantities from the ALICE | |
432 | // Global coordinate system to the detector local coordinate system | |
433 | // for the detector layer ladder and detector numbers. The global | |
434 | // and local coordinate are given in two Double point arrays g[3], | |
435 | // and l[3]. | |
436 | void GtoLMomentum(Int_t lay,Int_t lad,Int_t det, | |
437 | const Double_t *g,Double_t *l)const{ | |
438 | GtoLMomentum(GetModuleIndex(lay,lad,det),g,l);} | |
439 | // Transforms of momentum types of quantities from the ALICE | |
440 | // Global coordinate system to the detector local coordinate system | |
441 | // for the detector module index number. The global and local | |
442 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
443 | void GtoLMomentum(Int_t index,const Double_t *g,Double_t *l)const{ | |
444 | Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dg[i] = g[i]; | |
445 | GetGeomMatrix(index)->GtoLMomentum(dg,dl); | |
446 | for(i=0;i<3;i++) l[i] =dl[i];} | |
447 | // | |
448 | // Transforms of momentum types of quantities from the ALICE | |
449 | // Global coordinate system to the detector local coordinate system | |
450 | // (used for ITS tracking) for the detector module index number. | |
451 | // The global and local coordinate are given in two Double point | |
452 | // arrays g[3], and l[3]. | |
453 | void GtoLMomentumTracking(Int_t index,const Double_t *g,Double_t *l)const{ | |
454 | if(IsGeantToTracking()) GtoLMomentum(index,g,l); | |
455 | else GetGeomMatrix(index)->GtoLMomentumTracking(g,l);} | |
456 | // Transforms of momentum types of quantities from the ALICE | |
457 | // Global coordinate system to the detector local coordinate system | |
458 | // (used for ITS tracking) for the detector id[3]. | |
459 | // The global and local coordinate are given in two Double point | |
460 | // arrays g[3], and l[3]. | |
461 | void GtoLMomentumTracking(const Int_t *id, | |
462 | const Double_t *g,Double_t *l)const{ | |
463 | GtoLMomentumTracking(GetModuleIndex(id),g,l);} | |
464 | // Transforms of momentum types of quantities from the ALICE | |
465 | // Global coordinate system to the detector local coordinate system | |
466 | // (used for ITS tracking) for the detector layer ladder and detector | |
467 | // numbers. The global and local coordinate are given in two Double point | |
468 | // arrays g[3], and l[3]. | |
469 | void GtoLMomentumTracking(Int_t lay,Int_t lad,Int_t det, | |
470 | const Double_t *g,Double_t *l)const{ | |
471 | GtoLMomentumTracking(GetModuleIndex(lay,lad,det),g,l);} | |
472 | // | |
473 | // Transforms from the detector local coordinate system | |
474 | // to the ALICE Global coordinate system for the detector | |
475 | // defined by the layer, ladder, and detector numbers. The | |
476 | // global and local coordinate are given in two floating point | |
477 | // arrays g[3], and l[3]. | |
478 | void LtoG(Int_t lay,Int_t lad,Int_t det, | |
479 | const Float_t *l,Float_t *g)const{ | |
480 | LtoG(GetModuleIndex(lay,lad,det),l,g);} | |
481 | // Transforms from the detector local coordinate system | |
482 | // to the ALICE Global coordinate system for the detector | |
483 | // defined by the id[0], id[1], and id[2] numbers. The | |
484 | // global and local coordinate are given in two floating point | |
485 | // arrays g[3], and l[3]. | |
486 | void LtoG(const Int_t *id,const Float_t *l,Float_t *g)const{ | |
487 | LtoG(GetModuleIndex(id),l,g);} | |
488 | // Transforms from the detector local coordinate system | |
489 | // to the ALICE Global coordinate system for the detector | |
490 | // module index number. The global and local coordinate are | |
491 | // given in two floating point arrays g[3], and l[3]. | |
492 | void LtoG(Int_t index,const Float_t *l,Float_t *g)const{ | |
493 | Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dl[i] = l[i]; | |
494 | GetGeomMatrix(index)->LtoGPosition(dl,dg); | |
495 | for(i=0;i<3;i++) g[i] =dg[i];} | |
496 | // Transforms from the detector local coordinate system | |
497 | // to the ALICE Global coordinate system for the detector | |
498 | // defined by the layer, ladder, and detector numbers. The | |
499 | // global and local coordinate are given in two Double point | |
500 | // arrays g[3], and l[3]. | |
501 | void LtoG(Int_t lay,Int_t lad,Int_t det, | |
502 | const Double_t *l,Double_t *g)const{ | |
503 | LtoG(GetModuleIndex(lay,lad,det),l,g);} | |
504 | // Transforms from the detector local coordinate system | |
505 | // to the ALICE Global coordinate system for the detector | |
506 | // defined by the id[0], id[1], and id[2] numbers. The | |
507 | // global and local coordinate are given in two Double point | |
508 | // arrays g[3], and l[3]. | |
509 | void LtoG(const Int_t *id,const Double_t *l,Double_t *g)const{ | |
510 | LtoG(GetModuleIndex(id),l,g);} | |
511 | // Transforms from the detector local coordinate system | |
512 | // to the ALICE Global coordinate system for the detector | |
513 | // module index number. The global and local coordinate are | |
514 | // given in two Double point arrays g[3], and l[3]. | |
515 | void LtoG(Int_t index,const Double_t *l,Double_t *g)const{ | |
516 | GetGeomMatrix(index)->LtoGPosition(l,g);} | |
517 | // | |
518 | // Transforms from the detector local coordinate system (used | |
519 | // for ITS tracking) to the ALICE Global coordinate system | |
520 | // for the detector module index number. The global and local | |
521 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
522 | void LtoGtracking(Int_t index,const Double_t *l,Double_t *g)const{ | |
523 | if(IsGeantToTracking()) LtoG(index,l,g); | |
524 | else GetGeomMatrix(index)->LtoGPositionTracking(l,g);} | |
525 | // Transforms from the detector local coordinate system (used | |
526 | // for ITS tracking) to the ALICE Global coordinate system | |
527 | // for the detector id[3]. The global and local | |
528 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
529 | void LtoGtracking(const Int_t *id,const Double_t *l,Double_t *g)const{ | |
530 | LtoGtracking(GetModuleIndex(id),l,g);} | |
531 | // Transforms from the detector local coordinate system (used | |
532 | // for ITS tracking) to the detector local coordinate system | |
533 | // for the detector layer ladder and detector numbers. The global | |
534 | // and local coordinate are given in two Double point arrays g[3], | |
535 | // and l[3]. | |
536 | void LtoGtracking(Int_t lay,Int_t lad,Int_t det, | |
537 | const Double_t *l,Double_t *g)const{ | |
538 | LtoGtracking(GetModuleIndex(lay,lad,det),l,g);} | |
539 | // | |
540 | // Transforms of momentum types of quantities from the detector | |
541 | // local coordinate system to the ALICE Global coordinate system | |
542 | // for the detector layer ladder and detector numbers. The global | |
543 | // and local coordinate are given in two float point arrays g[3], | |
544 | // and l[3]. | |
545 | void LtoGMomentum(Int_t lay,Int_t lad,Int_t det, | |
546 | const Float_t *l,Float_t *g)const{ | |
547 | LtoGMomentum(GetModuleIndex(lay,lad,det),l,g);} | |
548 | // Transforms of momentum types of quantities from the detector | |
549 | // local coordinate system to the ALICE Global coordinate system | |
550 | // for the detector module index number. The global and local | |
551 | // coordinate are given in two float point arrays g[3], and l[3]. | |
552 | void LtoGMomentum(Int_t index,const Float_t *l,Float_t *g)const{ | |
553 | Double_t dg[3],dl[3];Int_t i;for(i=0;i<3;i++) dl[i] = l[i]; | |
554 | GetGeomMatrix(index)->LtoGMomentum(dl,dg); | |
555 | for(i=0;i<3;i++) g[i] =dg[i];} | |
556 | // Transforms of momentum types of quantities from the detector | |
557 | // local coordinate system to the ALICE Global coordinate system | |
558 | // for the detector layer ladder and detector numbers. The global | |
559 | // and local coordinate are given in two Double point arrays g[3], | |
560 | // and l[3]. | |
561 | void LtoGMomentum(Int_t lay,Int_t lad,Int_t det, | |
562 | const Double_t *l,Double_t *g)const{ | |
563 | LtoGMomentum(GetModuleIndex(lay,lad,det),l,g);} | |
564 | // Transforms of momentum types of quantities from the detector | |
565 | // local coordinate system to the ALICE Global coordinate system | |
566 | // for the detector module index number. The global and local | |
567 | // coordinate are given in two Double point arrays g[3], and l[3]. | |
568 | void LtoGMomentum(Int_t index,const Double_t *l,Double_t *g)const{ | |
569 | GetGeomMatrix(index)->LtoGMomentum(l,g);} | |
570 | // | |
571 | // Transforms of momentum types of quantities from the detector | |
572 | // local coordinate system (used for ITS tracking) to the detector | |
573 | // system ALICE Global for the detector module index number. | |
574 | // The global and local coordinate are given in two Double point | |
575 | // arrays g[3], and l[3]. | |
576 | void LtoGMomentumTracking(Int_t index,const Double_t *l,Double_t *g)const{ | |
577 | if(IsGeantToTracking()) LtoGMomentum(index,l,g); | |
578 | else GetGeomMatrix(index)->LtoGMomentumTracking(l,g);} | |
579 | // Transforms of momentum types of quantities from the detector | |
580 | // local coordinate system (used for ITS tracking) to the ALICE | |
581 | // Global coordinate system for the detector id[3]. | |
582 | // The global and local coordinate are given in two Double point | |
583 | // arrays g[3], and l[3]. | |
584 | void LtoGMomentumTracking(const Int_t *id,const Double_t *l,Double_t *g) | |
585 | const{LtoGMomentumTracking(GetModuleIndex(id),l,g);} | |
586 | // Transforms of momentum types of quantities from the detector | |
587 | // local coordinate system (used for ITS tracking) to the ALICE | |
588 | // Global coordinate system for the detector layer ladder and detector | |
589 | // numbers. The global and local coordinate are given in two Double point | |
590 | // arrays g[3], and l[3]. | |
591 | void LtoGMomentumTracking(Int_t lay,Int_t lad,Int_t det, | |
592 | const Double_t *l,Double_t *g)const{ | |
593 | LtoGMomentumTracking(GetModuleIndex(lay,lad,det),l,g);} | |
594 | // | |
595 | // Transforms from one detector local coordinate system | |
596 | // to another detector local coordinate system for the detector | |
597 | // module index1 number to the detector module index2 number. The | |
598 | // local coordinates are given in two Double point arrays l1[3], | |
599 | // and l2[3]. | |
600 | void LtoL(Int_t index1,Int_t index2,Double_t *l1,Double_t *l2)const{ | |
601 | Double_t g[3]; LtoG(index1,l1,g);GtoL(index2,g,l2);} | |
602 | // Transforms from one detector local coordinate system | |
603 | // to another detector local coordinate system for the detector | |
604 | // id1[3] to the detector id2[3]. The local coordinates are given | |
605 | // in two Double point arrays l1[3], and l2[3]. | |
606 | void LtoL(const Int_t *id1,const Int_t *id2,Double_t *l1,Double_t *l2) | |
607 | const{LtoL(GetModuleIndex(id1[0],id1[1],id1[2]), | |
608 | GetModuleIndex(id2[0],id2[1],id2[2]),l1,l2);} | |
609 | // | |
610 | // Transforms from one detector local coordinate system (used for | |
611 | // ITS tracking) to another detector local coordinate system (used | |
612 | // for ITS tracking) for the detector module index1 number to the | |
613 | // detector module index2 number. The local coordinates are given | |
614 | // in two Double point arrays l1[3], and l2[3]. | |
615 | void LtoLtracking(Int_t index1,Int_t index2, | |
616 | Double_t *l1,Double_t *l2)const{ | |
617 | Double_t g[3]; LtoGtracking(index1,l1,g);GtoLtracking(index2,g,l2);} | |
618 | // Transforms from one detector local coordinate system (used for | |
619 | // ITS tracking) to another detector local coordinate system (used | |
620 | // for ITS tracking) for the detector id1[3] to the detector id2[3]. | |
621 | // The local coordinates are given in two Double point arrays l1[3], | |
622 | // and l2[3]. | |
623 | void LtoLtracking(const Int_t *id1,const Int_t *id2, | |
624 | Double_t *l1,Double_t *l2)const{ | |
625 | LtoLtracking(GetModuleIndex(id1[0],id1[1],id1[2]), | |
626 | GetModuleIndex(id2[0],id2[1],id2[2]),l1,l2);} | |
627 | // | |
628 | // Transforms of momentum types of quantities from one detector | |
629 | // local coordinate system to another detector local coordinate | |
630 | // system for the detector module index1 number to the detector | |
631 | // module index2 number. The local coordinates are given in two | |
632 | // Double point arrays l1[3], and l2[3]. | |
633 | void LtoLMomentum(Int_t index1,Int_t index2, | |
634 | const Double_t *l1,Double_t *l2)const{ | |
635 | Double_t g[3]; LtoGMomentum(index1,l1,g);GtoLMomentum(index2,g,l2);} | |
636 | // Transforms of momentum types of quantities from one detector | |
637 | // local coordinate system to another detector local coordinate | |
638 | // system for the detector id1[3] to the detector id2[3]. The local | |
639 | // coordinates are given in two Double point arrays l1[3], and l2[3]. | |
640 | void LtoLMomentum(const Int_t *id1,const Int_t *id2, | |
641 | const Double_t *l1,Double_t *l2)const{ | |
642 | LtoLMomentum(GetModuleIndex(id1[0],id1[1],id1[2]), | |
643 | GetModuleIndex(id2[0],id2[1],id2[2]),l1,l2);} | |
644 | // | |
645 | // Transforms of momentum types of quantities from one detector | |
646 | // local coordinate system (used by ITS tracking) to another detector | |
647 | // local coordinate system (used by ITS tracking) for the detector | |
648 | // module index1 number to the detector module index2 number. The | |
649 | // local coordinates are given in two Double point arrays l1[3], | |
650 | // and l2[3]. | |
651 | void LtoLMomentumTracking(Int_t index1,Int_t index2, | |
652 | Double_t *l1,Double_t *l2)const{ | |
653 | Double_t g[3]; LtoGMomentumTracking(index1,l1,g); | |
654 | GtoLMomentumTracking(index2,g,l2);} | |
655 | // Transforms of momentum types of quantities from one detector | |
656 | // local coordinate system (used by ITS tracking) to another detector | |
657 | // local coordinate system (used by ITS tracking) for the detector | |
658 | // id1[3] to the detector id2[3]. The local coordinates are given in | |
659 | // two Double point arrays l1[3], and l2[3]. | |
660 | void LtoLMomentumTracking(const Int_t *id1,const Int_t *id2, | |
661 | Double_t *l1,Double_t *l2)const{ | |
662 | LtoLMomentumTracking(GetModuleIndex(id1[0],id1[1],id1[2]), | |
663 | GetModuleIndex(id2[0],id2[1],id2[2]),l1,l2);} | |
664 | // | |
665 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
666 | // the ALICE Global coordinate system to a detector local coordinate | |
667 | // system. The specific detector is determined by the module index | |
668 | // number. | |
669 | void GtoLErrorMatrix(Int_t index,const Double_t **g,Double_t **l)const{ | |
670 | GetGeomMatrix(index)->GtoLPositionError( | |
671 | (Double_t (*)[3])g,(Double_t (*)[3])l);} | |
672 | // | |
673 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
674 | // the ALICE Global coordinate system to a detector local coordinate | |
675 | // system (used by ITS tracking). The specific detector is determined | |
676 | // by the module index number. | |
677 | void GtoLErrorMatrixTracking(Int_t index,const Double_t **g, | |
678 | Double_t **l)const{ | |
679 | if(IsGeantToTracking()) GetGeomMatrix(index)->GtoLPositionError(( | |
680 | Double_t (*)[3])g,(Double_t (*)[3])l); | |
681 | else GetGeomMatrix(index)->GtoLPositionErrorTracking( | |
682 | (Double_t (*)[3])g,(Double_t (*)[3])l);} | |
683 | // | |
684 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
685 | // the detector local coordinate system to a ALICE Global coordinate | |
686 | // system. The specific detector is determined by the module index | |
687 | // number. | |
688 | void LtoGErrorMatrix(Int_t index,const Double_t **l,Double_t **g)const{ | |
689 | GetGeomMatrix(index)->LtoGPositionError( | |
690 | (Double_t (*)[3])l,(Double_t (*)[3])g);} | |
691 | // | |
692 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
693 | // the detector local coordinate system to a ALICE Global coordinate | |
694 | // system. The specific detector is determined by the module index | |
695 | // number. | |
696 | void LtoGErrorMatrix(Int_t index,const Double_t l[3][3],Double_t g[3][3]) | |
697 | const{ | |
698 | GetGeomMatrix(index)->LtoGPositionError( | |
699 | (Double_t (*)[3])l,(Double_t (*)[3])g);} | |
700 | ||
701 | // | |
702 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
703 | // the detector local coordinate system (used by ITS tracking) to a | |
704 | // ALICE Global coordinate system. The specific detector is determined | |
705 | // by the module index number. | |
706 | void LtoGErrorMatrixTracking(Int_t index,const Double_t **l, | |
707 | Double_t **g)const{ | |
708 | if(IsGeantToTracking()) GetGeomMatrix(index)->LtoGPositionError( | |
709 | (Double_t (*)[3])g,(Double_t (*)[3])l); | |
710 | else GetGeomMatrix(index)->LtoGPositionErrorTracking( | |
711 | (Double_t (*)[3])l,(Double_t (*)[3])g);} | |
712 | // | |
713 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
714 | // the detector local coordinate system (used by ITS tracking) to a | |
715 | // ALICE Global coordinate system. The specific detector is determined | |
716 | // by the module index number. | |
717 | void LtoGErrorMatrixTracking(Int_t index,const Double_t l[3][3], | |
718 | Double_t g[3][3])const{ | |
719 | if(IsGeantToTracking()) GetGeomMatrix(index)->LtoGPositionError( | |
720 | (Double_t (*)[3])g,(Double_t (*)[3])l); | |
721 | else GetGeomMatrix(index)->LtoGPositionErrorTracking( | |
722 | (Double_t (*)[3])l,(Double_t (*)[3])g);} | |
723 | // | |
724 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
725 | // one detector local coordinate system to another detector local | |
726 | // coordinate system. The specific detector is determined by the | |
727 | // two module index number index1 and index2. | |
728 | void LtoLErrorMatrix(Int_t index1,Int_t index2, | |
729 | const Double_t **l1,Double_t **l2)const{ | |
730 | Double_t g[3][3]; | |
731 | LtoGErrorMatrix(index1,l1,(Double_t **)g); | |
732 | GtoLErrorMatrix(index2,(const Double_t **)g,l2);} | |
733 | // | |
734 | // Transforms a matrix, like an Uncertainty or Error matrix from | |
735 | // one detector local coordinate system (used by ITS tracking) to | |
736 | // another detector local coordinate system (used by ITS tracking). | |
737 | // The specific detector is determined by the two module index number | |
738 | // index1 and index2. | |
739 | void LtoLErrorMatrixTraking(Int_t index1,Int_t index2, | |
740 | const Double_t **l1,Double_t **l2)const{ | |
741 | Double_t g[3][3]; | |
742 | LtoGErrorMatrixTracking(index1,l1,(Double_t **)g); | |
743 | GtoLErrorMatrixTracking(index2,(const Double_t **)g,l2);} | |
744 | // Find Specific Modules | |
745 | // Locate the nearest module to the point g, in ALICE global Cartesian | |
746 | // coordinates [cm] in a give layer. If layer = 0 then it search in | |
747 | // all layers. | |
748 | Int_t GetNearest(const Double_t g[3],Int_t lay=0)const; | |
749 | // Locates the nearest 27 modules, in nearest order, to the point g, in | |
750 | // ALICE global Cartesian coordinates [cm] in a give layer. If layer = 0 | |
751 | // then it searches in all layers. (there are 27 elements in a 3x3x3 | |
752 | // cube. | |
753 | void GetNearest27(const Double_t g[3],Int_t n[27],Int_t lay=0)const; | |
754 | // Returns the distance [cm] between the point g[3] and the center of | |
755 | // the detector/module specified by the the module index number. | |
756 | Double_t Distance(Int_t index,const Double_t g[3])const{ | |
757 | return TMath::Sqrt(GetGeomMatrix(index)->Distance2(g));} | |
758 | // loops over modules and computes the average cylindrical | |
759 | // radius to a given layer and the range. | |
760 | Double_t GetAverageRadiusOfLayer(Int_t layer,Double_t &range)const; | |
761 | // Geometry manipulation | |
762 | // This function performs a Cartesian translation and rotation of | |
763 | // the full ITS from its default position by an amount determined by | |
764 | // the three element arrays tran and rot. | |
765 | void GlobalChange(const Float_t *tran,const Float_t *rot); | |
766 | // This function performs a Cylindrical translation and rotation of | |
767 | // the full ITS from its default position by an amount determined by | |
768 | // the three element arrays tran and rot. | |
769 | void GlobalCylindericalChange(const Float_t *tran,const Float_t *rot); | |
770 | // This function performs a Gaussian random displacement and/or | |
771 | // rotation about the present global position of each active | |
772 | // volume/detector of the ITS with variances given by stran and srot. | |
773 | void RandomChange(const Float_t *stran,const Float_t *srot); | |
774 | // This function performs a Gaussian random displacement and/or | |
775 | // rotation about the present global position of each active | |
776 | // volume/detector of the ITS with variances given by stran and srot. | |
777 | // But in Cylindrical coordinates. | |
778 | void RandomCylindericalChange(const Float_t *stran,const Float_t *srot); | |
779 | // This function converts these transformations from Alice global and | |
780 | // local to Tracking global and local. | |
781 | // | |
782 | // This converts the geometry | |
783 | void GeantToTracking(const AliITSgeom &source); | |
784 | // Other routines. | |
785 | // This routine prints, to a file, the difference between this class | |
786 | // and "other". | |
787 | void PrintComparison(FILE *fp,AliITSgeom *other)const; | |
788 | // This routine prints, to a file, the contents of this class. | |
789 | void PrintData(FILE *fp,Int_t lay,Int_t lad,Int_t det)const; | |
790 | // This function prints out this class in a single stream. This steam | |
791 | // can be read by ReadGeom. | |
792 | void PrintGeom(ostream *out)const; | |
793 | // This function reads in that single steam printed out by PrintGeom. | |
794 | void ReadGeom(istream *in); | |
795 | ||
796 | //Conversion from det. local coordinates to local ("V2") coordinates | |
797 | //used for tracking | |
798 | ||
799 | void DetLToTrackingV2(Int_t md,Float_t xin,Float_t zin, | |
800 | Float_t &yout, Float_t &zout); | |
801 | ||
802 | void TrackingV2ToDetL(Int_t md,Float_t yin,Float_t zin, | |
803 | Float_t &xout,Float_t &zout); | |
804 | ||
805 | private: | |
806 | TString fVersion; // Transformation version. | |
807 | Int_t fTrans; // Flag to keep track of which transformation | |
808 | Int_t fNmodules;// The total number of modules | |
809 | Int_t fNlayers; // The number of layers. | |
810 | TArrayI fNlad; // Array of the number of ladders/layer(layer) | |
811 | TArrayI fNdet; // Array of the number of detector/ladder(layer) | |
812 | TObjArray fGm; // Structure of translation. and rotation. | |
813 | TObjArray fShape; // Array of shapes and detector information. | |
814 | ||
815 | ClassDef(AliITSgeom,3) // ITS geometry class | |
816 | }; | |
817 | // Input and output function for standard C++ input/output. | |
818 | ostream& operator<<(ostream &os,AliITSgeom &source); | |
819 | istream& operator>>(istream &os,AliITSgeom &source); | |
820 | ||
821 | #endif |