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b7943f00 | 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 | ||
18 | // General Root includes | |
19 | //#include <Riostream.h> | |
20 | #include <TMath.h> | |
21 | #include <TVectorD.h> | |
22 | ||
23 | // Root Geometry includes | |
24 | #include <TGeoManager.h> | |
25 | #include <TGeoVolume.h> | |
26 | #include <TGeoTube.h> | |
27 | #include <TGeoMatrix.h> | |
28 | ||
29 | #include "AliITSv11GeomCableRound.h" | |
30 | ||
31 | //************************************************************************* | |
32 | // Class for round cables | |
33 | // | |
34 | // Ludovic Gaudichet gaudichet@to.infn.it | |
35 | //************************************************************************* | |
36 | ||
37 | ClassImp(AliITSv11GeomCableRound) | |
38 | ||
39 | //________________________________________________________________________ | |
40 | AliITSv11GeomCableRound:: | |
41 | AliITSv11GeomCableRound(const char* name, Double_t radius) : | |
42 | AliITSv11GeomCable(name) { | |
43 | // Constructor | |
44 | fRadius = radius; | |
45 | fNlayer = 0; | |
46 | for (Int_t i=0; i<fgkCableMaxLayer ; i++) { | |
47 | fLayThickness[i] = 0; | |
48 | fLayColor[i] = 0; | |
49 | fLayMedia[i] = 0; | |
50 | }; | |
51 | fPhiMin = 0; | |
52 | fPhiMax = 360; | |
53 | }; | |
54 | ||
55 | //________________________________________________________________________ | |
56 | AliITSv11GeomCableRound::AliITSv11GeomCableRound(const AliITSv11GeomCableRound &s) : | |
57 | AliITSv11GeomCable(s),fRadius(s.fRadius),fNlayer(s.fNlayer),fPhiMin(s.fPhiMin), | |
58 | fPhiMax(s.fPhiMax) | |
59 | { | |
60 | // Copy Constructor | |
61 | for (Int_t i=0; i<s.fNlayer; i++) { | |
62 | fLayThickness[i] = s.fLayThickness[i]; | |
63 | fLayMedia[i] = s.fLayMedia[i]; | |
64 | fLayColor[i] = s.fLayColor[i]; | |
65 | } | |
66 | } | |
67 | ||
68 | //________________________________________________________________________ | |
69 | AliITSv11GeomCableRound& AliITSv11GeomCableRound:: | |
70 | operator=(const AliITSv11GeomCableRound &s) { | |
71 | // Assignment operator | |
72 | // Not fully inplemented yet !!! | |
73 | ||
74 | if(&s == this) return *this; | |
75 | *this = s; | |
76 | fRadius = s.fRadius; | |
77 | fPhiMin = s.fPhiMin; | |
78 | fPhiMax = s.fPhiMax; | |
79 | fNlayer = s.fNlayer; | |
80 | for (Int_t i=0; i<s.fNlayer; i++) { | |
81 | fLayThickness[i] = s.fLayThickness[i]; | |
82 | fLayMedia[i] = s.fLayMedia[i]; | |
83 | fLayColor[i] = s.fLayColor[i]; | |
84 | }; | |
85 | return *this; | |
86 | } | |
87 | ||
88 | //________________________________________________________________________ | |
89 | Int_t AliITSv11GeomCableRound::GetPoint( Int_t iCheckPt, Double_t *coord) | |
90 | const { | |
91 | // Get check point #iCheckPt | |
92 | TVectorD *coordVector =(TVectorD *)fPointArray.UncheckedAt(2*iCheckPt); | |
93 | CopyFrom(coord, coordVector->GetMatrixArray()); | |
94 | return kTRUE; | |
95 | }; | |
96 | ||
97 | //________________________________________________________________________ | |
98 | Int_t AliITSv11GeomCableRound::GetVect( Int_t iCheckPt, Double_t *coord) | |
99 | const { | |
100 | // | |
101 | // Get vector transverse to the section at point #iCheckPt | |
102 | // | |
103 | ||
104 | TVectorD *coordVector =(TVectorD *)fPointArray.UncheckedAt(2*iCheckPt+1); | |
105 | CopyFrom(coord, coordVector->GetMatrixArray()); | |
106 | return kTRUE; | |
107 | }; | |
108 | //________________________________________________________________________ | |
109 | void AliITSv11GeomCableRound::AddCheckPoint( TGeoVolume *vol, Int_t iCheckPt, | |
110 | Double_t *coord, Double_t *orthVect) | |
111 | { | |
112 | // | |
113 | // Add point #iCheckPt and its transverse vector. Point is added at (i) in | |
114 | // fPointArray and the vector is added at (i+1) | |
115 | // | |
116 | ||
117 | ||
118 | if (iCheckPt>=fVolumeArray.GetEntriesFast()) { | |
119 | fVolumeArray.AddLast(vol); | |
120 | TVectorD *point = new TVectorD(3,coord); | |
121 | TVectorD *vect = new TVectorD(3,orthVect); | |
122 | fPointArray.AddLast(point); | |
123 | fPointArray.AddLast(vect); | |
124 | ||
125 | } else if ((iCheckPt >= 0)&&(iCheckPt < fVolumeArray.GetEntriesFast())) { | |
126 | fVolumeArray.AddAt(vol, iCheckPt); | |
127 | TVectorD *point = new TVectorD(3,coord); | |
128 | TVectorD *vect = new TVectorD(3,orthVect); | |
129 | fPointArray.AddAt(point, iCheckPt*2 ); | |
130 | fPointArray.AddAt(vect, iCheckPt*2+1); | |
131 | }; | |
132 | }; | |
133 | ||
134 | //________________________________________________________________________ | |
135 | void AliITSv11GeomCableRound::PrintCheckPoints() const { | |
136 | // Print all check points | |
137 | ||
138 | printf(" ---\n Printing all check points of the round cable\n"); | |
139 | for (Int_t i = 0; i<fVolumeArray.GetEntriesFast(); i++) { | |
140 | TVectorD *coordVector = (TVectorD *)fPointArray.UncheckedAt(i*2); | |
141 | //TVectorD *vectVector = (TVectorD *)fPointArray.UncheckedAt(i*2+1); | |
142 | Double_t coord[3]; | |
143 | CopyFrom(coord, coordVector->GetMatrixArray()); | |
144 | ||
145 | printf(" ( %.2f, %.2f, %.2f )\n", coord[0], coord[1], coord[2]); | |
146 | }; | |
147 | ||
148 | }; | |
149 | ||
150 | //________________________________________________________________________ | |
151 | Int_t AliITSv11GeomCableRound::CreateAndInsertCableSegment(Int_t p2) | |
152 | { | |
153 | // Creates a cable segment between points p1 and p2. | |
154 | // Rotation is the eventual rotation of the flat cable | |
155 | // along its length axis | |
156 | // | |
157 | // The segment volume is created inside the volume containing point2 | |
158 | // Therefore this segment should be defined in this volume only. | |
159 | // I mean here that, if the previous point is in another volume, | |
160 | // it should be just at the border between the 2 volumes. Also the | |
161 | // orientation vector of the previous point should be othogonal to | |
162 | // the surface between the 2 volumes. | |
163 | ||
164 | TGeoNode *mainNode; | |
165 | if (fInitialNode==0) { | |
166 | TObjArray *nodes = gGeoManager->GetListOfNodes(); | |
167 | if (nodes->GetEntriesFast()==0) return kFALSE; | |
168 | mainNode = (TGeoNode *) nodes->UncheckedAt(0); | |
169 | } else { | |
170 | mainNode = fInitialNode; | |
171 | }; | |
172 | ||
173 | Int_t p1 = p2 - 1; | |
174 | TGeoVolume *p1Vol = GetVolume(p1); | |
175 | TGeoVolume *p2Vol = GetVolume(p2); | |
176 | ||
177 | ResetCheckDaughter(); | |
178 | fCurrentVol = p1Vol; | |
179 | if (! CheckDaughter(mainNode)) { | |
180 | printf("Error::volume containing point is not visible in node tree!\n"); | |
181 | return kFALSE; | |
182 | }; | |
183 | ||
184 | Double_t coord1[3], coord2[3], vect1[3], vect2[3]; | |
185 | //================================================= | |
186 | // Get p1 position in the systeme of p2 | |
187 | if (p1Vol!=p2Vol) { | |
188 | ||
189 | Int_t p1nodeInd[fgkCableMaxNodeLevel]; | |
190 | for (Int_t i=0; i<fgkCableMaxNodeLevel; i++) p1nodeInd[i]=fNodeInd[i]; | |
191 | Int_t p1volLevel = 0; | |
192 | while (p1nodeInd[p1volLevel]!=-1) p1volLevel++; | |
193 | p1volLevel--; | |
194 | ||
195 | ResetCheckDaughter(); | |
196 | fCurrentVol = p2Vol; | |
197 | if (! CheckDaughter(mainNode)) { | |
198 | printf("Error::volume containing point is not visible in node tree!\n"); | |
199 | return kFALSE; | |
200 | }; | |
201 | Int_t p2nodeInd[fgkCableMaxNodeLevel]; | |
202 | for (Int_t i=0; i<fgkCableMaxNodeLevel; i++) p2nodeInd[i]=fNodeInd[i]; | |
203 | Int_t commonMotherLevel = 0; | |
204 | while (p1nodeInd[commonMotherLevel]==fNodeInd[commonMotherLevel]) | |
205 | commonMotherLevel++; | |
206 | commonMotherLevel--; | |
207 | Int_t p2volLevel = 0; | |
208 | while (fNodeInd[p2volLevel]!=-1) p2volLevel++; | |
209 | p2volLevel--; | |
210 | ||
211 | // Get coord and vect of p1 in the common mother reference system | |
212 | GetCheckPoint(p1, 0, p1volLevel-commonMotherLevel, coord1); | |
213 | GetCheckVect( p1, 0, p1volLevel-commonMotherLevel, vect1); | |
214 | // Translate them in the reference system of the volume containing p2 | |
215 | TGeoNode *pathNode[fgkCableMaxNodeLevel]; | |
216 | pathNode[0] = mainNode; | |
217 | for (Int_t i=0; i<=p2volLevel; i++) { | |
218 | pathNode[i+1] = pathNode[i]->GetDaughter(p2nodeInd[i]); | |
219 | }; | |
220 | Double_t globalCoord1[3] = {coord1[0], coord1[1], coord1[2]}; | |
221 | Double_t globalVect1[3] = {vect1[0], vect1[1], vect1[2]}; | |
222 | ||
223 | for (Int_t i = commonMotherLevel+1; i<=p2volLevel; i++) { | |
224 | pathNode[i+1]->GetMatrix()->MasterToLocal(globalCoord1, coord1); | |
225 | pathNode[i+1]->GetMatrix()->MasterToLocalVect(globalVect1, vect1); | |
226 | CopyFrom(globalCoord1, coord1); | |
227 | CopyFrom(globalVect1, vect1); | |
228 | }; | |
229 | } else { | |
230 | GetCheckPoint(p1, 0, 0, coord1); | |
231 | GetCheckVect(p1, 0, 0, vect1); | |
232 | }; | |
233 | ||
234 | //================================================= | |
235 | // Get p2 position in the systeme of p2 | |
236 | GetCheckPoint(p2, 0, 0, coord2); | |
237 | GetCheckVect(p2, 0, 0, vect2); | |
238 | ||
239 | Double_t cx = (coord1[0]+coord2[0])/2; | |
240 | Double_t cy = (coord1[1]+coord2[1])/2; | |
241 | Double_t cz = (coord1[2]+coord2[2])/2; | |
242 | Double_t dx = coord2[0]-coord1[0]; | |
243 | Double_t dy = coord2[1]-coord1[1]; | |
244 | Double_t dz = coord2[2]-coord1[2]; | |
245 | ||
246 | //================================================= | |
247 | // Positionning of the segment between the 2 points | |
248 | if ((dy<1e-31)&&(dy>0)) dy = 1e-31; | |
249 | if ((dz<1e-31)&&(dz>0)) dz = 1e-31; | |
250 | if ((dy>-1e-31)&&(dy<0)) dy = -1e-31; | |
251 | if ((dz>-1e-31)&&(dz<0)) dz = -1e-31; | |
252 | ||
253 | Double_t angleRot1 = -TMath::ATan2(dx,dy); | |
254 | Double_t planDiagL = TMath::Sqrt(dy*dy+dx*dx); | |
255 | Double_t angleRotDiag = -TMath::ATan2(planDiagL,dz); | |
256 | TGeoRotation *rot = new TGeoRotation("",angleRot1*TMath::RadToDeg(), | |
257 | angleRotDiag*TMath::RadToDeg(), | |
258 | 0); | |
259 | Double_t localVect1[3], localVect2[3]; | |
260 | rot->MasterToLocalVect(vect1, localVect1); | |
261 | rot->MasterToLocalVect(vect2, localVect2); | |
262 | TGeoTranslation *trans = new TGeoTranslation("",cx, cy, cz); | |
263 | ||
264 | //================================================= | |
265 | // Create the segment and add it to the mother volume | |
266 | TGeoVolume *vCableSeg = CreateSegment(coord1, coord2, | |
267 | localVect1, localVect2); | |
268 | ||
269 | TGeoCombiTrans *combi = new TGeoCombiTrans(*trans, *rot); | |
270 | p2Vol->AddNode(vCableSeg, p2, combi); | |
271 | //================================================= | |
272 | delete rot; | |
273 | delete trans; | |
274 | ||
275 | if (fDebug) { | |
276 | printf("---\n Cable segment points : "); | |
277 | printf("%f, %f, %f\n",coord1[0], coord1[1], coord1[2]); | |
278 | printf("%f, %f, %f\n",coord2[0], coord2[1], coord2[2]); | |
279 | }; | |
280 | // #include <TGeoSphere.h> | |
281 | // TGeoMedium *airSDD = gGeoManager->GetMedium("ITSsddAir"); | |
282 | // TGeoSphere *sphere = new TGeoSphere(0, 0.15); | |
283 | // TGeoVolume *vSphere = new TGeoVolume("", sphere, airSDD); | |
284 | // TGeoTranslation *trC = new TGeoTranslation("", cx, cy, cz); | |
285 | // TGeoTranslation *tr1 = new TGeoTranslation("",coord1[0], | |
286 | // coord1[1],coord1[2]); | |
287 | // TGeoTranslation *tr2 = new TGeoTranslation("",coord2[0], | |
288 | // coord2[1],coord2[2]); | |
289 | // p2Vol->AddNode(vSphere, p2*3-2, trC); | |
290 | // p2Vol->AddNode(vSphere, p2*3-1, tr1); | |
291 | // p2Vol->AddNode(vSphere, p2*3 , tr2); | |
292 | ||
293 | return kTRUE; | |
294 | }; | |
295 | ||
296 | //________________________________________________________________________ | |
297 | TGeoVolume *AliITSv11GeomCableRound::CreateSegment( Double_t *coord1, | |
298 | Double_t *coord2, | |
299 | Double_t *localVect1, | |
300 | Double_t *localVect2 ) | |
301 | { | |
302 | ||
303 | //================================================= | |
304 | // Calculate segment "deformation" | |
305 | Double_t dx = coord2[0]-coord1[0]; | |
306 | Double_t dy = coord2[1]-coord1[1]; | |
307 | Double_t dz = coord2[2]-coord1[2]; | |
308 | Double_t length = TMath::Sqrt(dx*dx+dy*dy+dz*dz); | |
309 | ||
310 | // normal vectors have to point outside the TGeoCtub : | |
311 | if (-localVect1[2]<0) { | |
312 | localVect1[0] = -localVect1[0]; | |
313 | localVect1[1] = -localVect1[1]; | |
314 | localVect1[2] = -localVect1[2]; | |
315 | }; | |
316 | if (localVect2[2]<0) { | |
317 | localVect2[0] = -localVect2[0]; | |
318 | localVect2[1] = -localVect2[1]; | |
319 | localVect2[2] = -localVect2[2]; | |
320 | }; | |
321 | //================================================= | |
322 | // Create the segment | |
323 | TGeoCtub *cableSeg = new TGeoCtub(0., fRadius, length/2, fPhiMin, fPhiMax, | |
324 | localVect1[0],localVect1[1],localVect1[2], | |
325 | localVect2[0],localVect2[1],localVect2[2]); | |
326 | ||
327 | TGeoMedium *airSDD = gGeoManager->GetMedium("ITSair"); | |
328 | TGeoVolume *vCableSeg = new TGeoVolume(GetName(), cableSeg, airSDD); | |
329 | ||
330 | // add all cable layers | |
331 | Double_t layThickness[100+1]; // 100 layers max !!! | |
332 | layThickness[0] = 0; | |
333 | for (Int_t iLay=0; iLay<fNlayer; iLay++) { | |
334 | ||
335 | layThickness[iLay+1] = fLayThickness[iLay]+layThickness[iLay]; | |
336 | TGeoCtub *lay = new TGeoCtub(layThickness[iLay], layThickness[iLay+1], | |
337 | length/2, fPhiMin, fPhiMax, | |
338 | localVect1[0],localVect1[1],localVect1[2], | |
339 | localVect2[0],localVect2[1],localVect2[2]); | |
340 | ||
341 | TGeoVolume *vLay = new TGeoVolume("vCableSegLay", lay, fLayMedia[iLay]); | |
342 | vLay->SetLineColor(fLayColor[iLay]); | |
343 | vCableSeg->AddNode(vLay, iLay+1, 0); | |
344 | }; | |
345 | ||
346 | vCableSeg->SetVisibility(kFALSE); | |
347 | return vCableSeg; | |
348 | }; | |
349 | ||
350 | ||
351 | //________________________________________________________________________ | |
352 | void AliITSv11GeomCableRound::SetNLayers(Int_t nLayers) { | |
353 | // Set the total number of layers | |
354 | if((nLayers>0) &&(nLayers<=fgkCableMaxLayer)) { | |
355 | fNlayer = nLayers; | |
356 | for (Int_t i = 0; i<fNlayer; i++) { | |
357 | fLayThickness[i] = 0; | |
358 | fLayMedia[i] = 0; | |
359 | }; | |
360 | }; | |
361 | }; | |
362 | ||
363 | //________________________________________________________________________ | |
364 | Int_t AliITSv11GeomCableRound::SetLayer(Int_t nLayer, Double_t thick, | |
365 | TGeoMedium *medium, Int_t color) { | |
366 | // Set layer #nLayer | |
367 | if ((nLayer<0)||(nLayer>=fNlayer)) { | |
368 | printf("Set wrong layer number of the cable\n"); | |
369 | return kFALSE; | |
370 | }; | |
371 | if (nLayer>0) | |
372 | if (fLayThickness[nLayer-1]<=0) { | |
373 | printf("You must define cable layer %i first !",nLayer-1); | |
374 | return kFALSE; | |
375 | }; | |
376 | ||
377 | Double_t thickTot = 0; | |
378 | for (Int_t i=0; i<nLayer; i++) thickTot += fLayThickness[i]; | |
379 | thickTot += thick; | |
380 | if (thickTot-1e-10>fRadius) { | |
381 | printf("Can't add this layer, cable thickness would be higher than total\n"); | |
382 | return kFALSE; | |
383 | }; | |
384 | ||
385 | fLayThickness[nLayer] = thick; | |
386 | fLayMedia[nLayer] = medium; | |
387 | fLayColor[nLayer] = color; | |
388 | ||
389 | return kTRUE; | |
390 | }; |