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54e415a8 | 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 | **************************************************************************/ | |
54e415a8 | 15 | /* $Id$ */ |
c2fc1258 | 16 | /** @file AliFMDGeometryBuilder.cxx |
17 | @author Christian Holm Christensen <cholm@nbi.dk> | |
18 | @date Mon Mar 27 12:41:17 2006 | |
19 | @brief Class to build the FMD geometry | |
20 | */ | |
54e415a8 | 21 | //____________________________________________________________________ |
22 | // | |
02a27b50 | 23 | // Builder of FMD geometry. |
6169f936 | 24 | // |
02a27b50 | 25 | // This class takes care of actually building the geometry using the |
26 | // TGeo classes. Various parameters are fecthed from the | |
27 | // AliFMDGeometry manager. | |
54e415a8 | 28 | // Forward Multiplicity Detector based on Silicon wafers. This class |
29 | // contains the base procedures for the Forward Multiplicity detector | |
30 | // Detector consists of 3 sub-detectors FMD1, FMD2, and FMD3, each of | |
31 | // which has 1 or 2 rings of silicon sensors. | |
32 | // | |
54e415a8 | 33 | // |
9edefa04 | 34 | |
35 | #include <TArrayD.h> // ROOT_TArrayD | |
36 | #include <TGeoManager.h> // ROOT_TGeoManager | |
37 | #include <TGeoTube.h> // ROOT_TGeoTube | |
38 | #include <TGeoTube.h> // ROOT_TGeoTube | |
39 | #include <TGeoVolume.h> // ROOT_TGeoVolume | |
40 | #include <TGeoXtru.h> // ROOT_TGeoXtru | |
41 | #include <TMath.h> | |
42 | #include <TVector2.h> // ROOT_TVector2 | |
43 | //#include <TGeoMaterial.h> // ROOT_TGeoMaterial | |
44 | //#include <TGeoMedium.h> // ROOT_TGeoMedium | |
45 | //#include <TGeoPcon.h> // ROOT_TGeoPcon | |
46 | //#include <TGeoPolygon.h> // ROOT_TGeoPolygon | |
47 | ||
54e415a8 | 48 | #include "AliFMDGeometryBuilder.h" // ALIFMDGEOSIMULATOR_H |
49 | #include "AliFMDGeometry.h" // ALIFMDGEOMETRY_H | |
50 | #include "AliFMDDetector.h" // ALIFMDDETECTOR_H | |
51 | #include "AliFMDRing.h" // ALIFMDRING_H | |
52 | #include "AliFMD1.h" // ALIFMD1_H | |
53 | #include "AliFMD2.h" // ALIFMD2_H | |
54 | #include "AliFMD3.h" // ALIFMD3_H | |
6169f936 | 55 | // #include "AliFMD.h" // ALIFMD_H |
f95a63c4 | 56 | #include "AliFMDDebug.h" // ALILOG_H |
54e415a8 | 57 | |
58 | //==================================================================== | |
59 | ClassImp(AliFMDGeometryBuilder) | |
60 | #if 0 | |
61 | ; // This is here to keep Emacs for indenting the next line | |
62 | #endif | |
63 | ||
64 | //____________________________________________________________________ | |
65 | const Char_t* AliFMDGeometryBuilder::fgkActiveName = "F%cAC"; | |
bf000c32 | 66 | const Char_t* AliFMDGeometryBuilder::fgkSectorName = "F%cSC"; |
54e415a8 | 67 | const Char_t* AliFMDGeometryBuilder::fgkStripName = "F%cST"; |
bf000c32 | 68 | const Char_t* AliFMDGeometryBuilder::fgkSensorName = "F%cSE"; |
69 | const Char_t* AliFMDGeometryBuilder::fgkPCBName = "F%cPB"; | |
70 | const Char_t* AliFMDGeometryBuilder::fgkCuName = "F%cCU"; | |
71 | const Char_t* AliFMDGeometryBuilder::fgkChipName = "F%cCH"; | |
54e415a8 | 72 | const Char_t* AliFMDGeometryBuilder::fgkLongLegName = "F%cLL"; |
73 | const Char_t* AliFMDGeometryBuilder::fgkShortLegName = "F%cSL"; | |
bf000c32 | 74 | const Char_t* AliFMDGeometryBuilder::fgkFrontVName = "F%cFH"; |
75 | const Char_t* AliFMDGeometryBuilder::fgkBackVName = "F%cBH"; | |
76 | const Char_t* AliFMDGeometryBuilder::fgkRingTopName = "F%cTV"; | |
77 | const Char_t* AliFMDGeometryBuilder::fgkRingBotName = "F%cBV"; | |
78 | const Char_t* AliFMDGeometryBuilder::fgkHCName = "F%dH%c"; | |
79 | const Char_t* AliFMDGeometryBuilder::fgkIHCName = "F%dI%c"; | |
54e415a8 | 80 | const Char_t* AliFMDGeometryBuilder::fgkNoseName = "F3SN"; |
81 | const Char_t* AliFMDGeometryBuilder::fgkBackName = "F3SB"; | |
82 | const Char_t* AliFMDGeometryBuilder::fgkBeamName = "F3SL"; | |
83 | const Char_t* AliFMDGeometryBuilder::fgkFlangeName = "F3SF"; | |
bf000c32 | 84 | const Char_t* AliFMDGeometryBuilder::fgkFMDName = "F%dM%c"; |
54e415a8 | 85 | |
86 | //____________________________________________________________________ | |
87 | AliFMDGeometryBuilder::AliFMDGeometryBuilder() | |
b5ee4425 | 88 | : TTask("FMD", "Geomtry builder"), |
89 | fActiveId(0), | |
90 | fDetailed(kTRUE), | |
54e415a8 | 91 | fUseAssembly(kTRUE), |
b5ee4425 | 92 | fSectorOff(0), |
93 | fModuleOff(0), | |
94 | fRingOff(0), | |
95 | fDetectorOff(0), | |
54e415a8 | 96 | fSi(0), |
97 | fC(0), | |
98 | fAl(0), | |
99 | fPCB(0), | |
100 | fChip(0), | |
b5ee4425 | 101 | fAir(0), |
102 | fPlastic(0), | |
103 | fCopper(0) | |
54e415a8 | 104 | { |
105 | // Default constructor | |
088f8e79 | 106 | fActiveId.Set(2); |
54e415a8 | 107 | } |
108 | ||
109 | //____________________________________________________________________ | |
110 | AliFMDGeometryBuilder::AliFMDGeometryBuilder(Bool_t detailed) | |
111 | : TTask("FMD", "Geometry builder"), | |
b5ee4425 | 112 | fActiveId(0), |
54e415a8 | 113 | fDetailed(detailed), |
114 | fUseAssembly(kTRUE), | |
b5ee4425 | 115 | fSectorOff(0), |
116 | fModuleOff(0), | |
117 | fRingOff(0), | |
118 | fDetectorOff(0), | |
54e415a8 | 119 | fSi(0), |
120 | fC(0), | |
121 | fAl(0), | |
122 | fPCB(0), | |
123 | fChip(0), | |
b5ee4425 | 124 | fAir(0), |
125 | fPlastic(0), | |
126 | fCopper(0) | |
54e415a8 | 127 | { |
128 | // Normal constructor | |
129 | // | |
130 | // Parameters: | |
131 | // | |
132 | // fmd Pointer to AliFMD object | |
133 | // detailed Whether to make a detailed simulation or not | |
134 | // | |
088f8e79 | 135 | fActiveId.Set(2); |
54e415a8 | 136 | } |
137 | ||
138 | ||
139 | //____________________________________________________________________ | |
140 | TGeoVolume* | |
141 | AliFMDGeometryBuilder::RingGeometry(AliFMDRing* r) | |
142 | { | |
143 | // Setup the geometry of a ring. The defined TGeoVolume is | |
144 | // returned, and should be used when setting up the rest of the | |
145 | // volumes. | |
146 | // | |
147 | // | |
148 | // Parameters: | |
149 | // | |
150 | // r Pointer to ring geometry object | |
151 | // | |
152 | // Returns: | |
153 | // pointer to ring volume | |
154 | // | |
155 | if (!r) { | |
156 | AliError("Didn't get a ring object"); | |
157 | return 0; | |
158 | } | |
159 | Char_t id = r->GetId(); | |
160 | Double_t siThick = r->GetSiThickness(); | |
02a27b50 | 161 | const Int_t knv = r->GetNVerticies(); |
54e415a8 | 162 | TVector2* a = r->GetVertex(5); |
163 | TVector2* b = r->GetVertex(3); | |
164 | TVector2* c = r->GetVertex(4); | |
165 | Double_t theta = r->GetTheta(); | |
166 | Double_t off = (TMath::Tan(TMath::Pi() * theta / 180) | |
167 | * r->GetBondingWidth()); | |
168 | Double_t rmax = b->Mod(); | |
169 | Double_t rmin = r->GetLowR(); | |
170 | Double_t pcbThick = r->GetPrintboardThickness(); | |
bf000c32 | 171 | Double_t cuThick = r->GetCopperThickness(); |
172 | Double_t chipThick= r->GetChipThickness(); | |
54e415a8 | 173 | Double_t modSpace = r->GetModuleSpacing(); |
174 | Double_t legr = r->GetLegRadius(); | |
175 | Double_t legl = r->GetLegLength(); | |
176 | Double_t legoff = r->GetLegOffset(); | |
177 | Int_t ns = r->GetNStrips(); | |
178 | Double_t stripoff = a->Mod(); | |
179 | Double_t dstrip = (rmax - stripoff) / ns; | |
180 | Double_t space = r->GetSpacing(); | |
02a27b50 | 181 | TArrayD xs(knv); |
182 | TArrayD ys(knv); | |
183 | for (Int_t i = 0; i < knv; i++) { | |
54e415a8 | 184 | // Reverse the order |
02a27b50 | 185 | TVector2* vv = r->GetVertex(knv - 1 - i); |
54e415a8 | 186 | if (!vv) { |
02a27b50 | 187 | AliError(Form("Failed to get vertex # %d", knv - 1 - i)); |
54e415a8 | 188 | continue; |
189 | } | |
190 | xs[i] = vv->X(); | |
191 | ys[i] = vv->Y(); | |
192 | } | |
193 | ||
194 | // Shape of actual sensor | |
bf000c32 | 195 | TGeoXtru* sensorShape = new TGeoXtru(2); |
02a27b50 | 196 | sensorShape->DefinePolygon(knv, xs.fArray, ys.fArray); |
bf000c32 | 197 | sensorShape->DefineSection(0, - siThick/2); |
198 | sensorShape->DefineSection(1, siThick/2); | |
199 | TGeoVolume* sensorVolume = new TGeoVolume(Form(fgkSensorName, id), | |
200 | sensorShape, fSi); | |
201 | sensorVolume->VisibleDaughters(kFALSE); | |
202 | Int_t sid = sensorVolume->GetNumber(); | |
54e415a8 | 203 | fSectorOff = -1; |
204 | fModuleOff = 1; | |
205 | fRingOff = 2; | |
206 | fDetectorOff = 3; | |
207 | if (fDetailed) { | |
208 | fSectorOff = 1; | |
bf000c32 | 209 | fModuleOff = 3; |
210 | fRingOff = 4; | |
211 | fDetectorOff = 5; | |
54e415a8 | 212 | // Virtual volume shape to divide - This volume is only defined if |
213 | // the geometry is set to be detailed. | |
bf000c32 | 214 | TGeoTubeSeg* activeShape = new TGeoTubeSeg(rmin, rmax, siThick/2, |
215 | - theta, theta); | |
54e415a8 | 216 | TGeoVolume* activeVolume = new TGeoVolume(Form(fgkActiveName, id), |
217 | activeShape,fSi); | |
218 | TGeoVolume* sectorVolume = activeVolume->Divide(Form(fgkSectorName,id), | |
219 | 2, 2, -theta,0,0,"N"); | |
220 | TGeoVolume* stripVolume = sectorVolume->Divide(Form(fgkStripName, id), | |
221 | 1, ns, stripoff, dstrip, | |
222 | 0, "SX"); | |
223 | sid = stripVolume->GetNumber(); | |
bf000c32 | 224 | sensorVolume->AddNodeOverlap(activeVolume, 0); |
54e415a8 | 225 | } |
226 | ||
227 | switch (id) { | |
bf000c32 | 228 | case 'i': case 'I': fActiveId[0] = sid; break; |
229 | case 'o': case 'O': fActiveId[1] = sid; break; | |
54e415a8 | 230 | } |
231 | ||
232 | // Shape of Printed circuit Board | |
02a27b50 | 233 | for (Int_t i = 0; i < knv / 2; i++) ys[i] -= off; |
234 | for (Int_t i = knv / 2; i < knv; i++) ys[i] += off; | |
bf000c32 | 235 | TGeoXtru* pcbShape = new TGeoXtru(2); |
02a27b50 | 236 | pcbShape->DefinePolygon(knv, xs.fArray, ys.fArray); |
54e415a8 | 237 | pcbShape->DefineSection(0, - pcbThick/2); |
238 | pcbShape->DefineSection(1, pcbThick/2); | |
bf000c32 | 239 | TGeoVolume* pcbVolume = new TGeoVolume(Form(fgkPCBName, id), |
240 | pcbShape, fPCB); | |
241 | ||
242 | // Copper layer | |
243 | TGeoXtru* cuShape = new TGeoXtru(2); | |
244 | cuShape->DefinePolygon(6, xs.fArray, ys.fArray); | |
245 | cuShape->DefineSection(0, - cuThick/2); | |
246 | cuShape->DefineSection(1, cuThick/2); | |
247 | TGeoVolume* cuVolume = new TGeoVolume(Form(fgkCuName,id),cuShape,fCopper); | |
248 | ||
249 | // Chip layer | |
250 | TGeoXtru* chipShape = new TGeoXtru(2); | |
251 | chipShape->DefinePolygon(6, xs.fArray, ys.fArray); | |
252 | chipShape->DefineSection(0, - chipThick/2); | |
253 | chipShape->DefineSection(1, chipThick/2); | |
254 | TGeoVolume* chipVolume = new TGeoVolume(Form(fgkChipName,id), | |
255 | chipShape,fChip); | |
54e415a8 | 256 | |
257 | // Short leg shape | |
258 | TGeoTube* shortLegShape = new TGeoTube(0, legr, legl / 2); | |
259 | TGeoVolume* shortLegVolume = new TGeoVolume(Form(fgkShortLegName, id), | |
260 | shortLegShape, fPlastic); | |
261 | ||
262 | // Long leg shape | |
263 | TGeoTube* longLegShape = new TGeoTube(0, legr, (legl + modSpace) / 2); | |
264 | TGeoVolume* longLegVolume = new TGeoVolume(Form(fgkLongLegName, id), | |
265 | longLegShape, fPlastic); | |
266 | ||
bf000c32 | 267 | |
54e415a8 | 268 | // Back container volume |
bf000c32 | 269 | TGeoVolume* backVolume = new TGeoVolumeAssembly(Form(fgkBackVName, id)); |
54e415a8 | 270 | Double_t x = 0; |
271 | Double_t y = 0; | |
bf000c32 | 272 | Double_t z = pcbThick / 2; |
273 | backVolume->AddNode(pcbVolume, 0, new TGeoTranslation(x,y,z)); | |
274 | z += (pcbThick + cuThick) / 2; | |
275 | backVolume->AddNode(cuVolume, 0, new TGeoTranslation(0, 0, z)); | |
276 | z += (cuThick + chipThick) / 2; | |
277 | backVolume->AddNode(chipVolume, 0, new TGeoTranslation(0, 0, z)); | |
54e415a8 | 278 | x = a->X() + legoff + legr; |
279 | y = 0; | |
280 | z += pcbThick / 2 + legl / 2; | |
bf000c32 | 281 | backVolume->AddNode(shortLegVolume, 0, new TGeoTranslation(x,y,z)); |
54e415a8 | 282 | x = c->X(); |
283 | y = c->Y() - legoff - legr - off; | |
bf000c32 | 284 | backVolume->AddNode(shortLegVolume, 1, new TGeoTranslation(x,y,z)); |
54e415a8 | 285 | y = -y; |
bf000c32 | 286 | backVolume->AddNode(shortLegVolume, 2, new TGeoTranslation(x,y,z)); |
54e415a8 | 287 | |
288 | // Front container volume | |
bf000c32 | 289 | TGeoVolume* frontVolume = new TGeoVolumeAssembly(Form(fgkFrontVName, id)); |
54e415a8 | 290 | x = 0; |
291 | y = 0; | |
bf000c32 | 292 | z = pcbThick / 2; |
293 | frontVolume->AddNode(pcbVolume, 1, new TGeoTranslation(x,y,z)); | |
294 | z += (pcbThick + cuThick) / 2; | |
295 | frontVolume->AddNode(cuVolume, 0, new TGeoTranslation(0, 0, z)); | |
296 | z += (cuThick + chipThick) / 2; | |
297 | frontVolume->AddNode(chipVolume, 0, new TGeoTranslation(0, 0, z)); | |
54e415a8 | 298 | x = a->X() + legoff + legr; |
299 | y = 0; | |
300 | z += pcbThick / 2 + (legl + modSpace)/ 2; | |
bf000c32 | 301 | frontVolume->AddNode(longLegVolume, 0, new TGeoTranslation(x,y,z)); |
54e415a8 | 302 | x = c->X(); |
303 | y = c->Y() - legoff - legr - off; | |
bf000c32 | 304 | frontVolume->AddNode(longLegVolume, 1, new TGeoTranslation(x,y,z)); |
54e415a8 | 305 | y = -y; |
bf000c32 | 306 | frontVolume->AddNode(longLegVolume, 2, new TGeoTranslation(x,y,z)); |
54e415a8 | 307 | |
bf000c32 | 308 | // Half ring mother volumes. |
309 | TGeoVolume* ringTopVolume = new TGeoVolumeAssembly(Form(fgkRingTopName,id)); | |
310 | TGeoVolume* ringBotVolume = new TGeoVolumeAssembly(Form(fgkRingBotName,id)); | |
311 | TGeoVolume* halfRing = ringTopVolume; | |
54e415a8 | 312 | |
bf000c32 | 313 | // Adding modules to half-rings |
314 | Int_t nmod = r->GetNModules(); | |
f95a63c4 | 315 | AliFMDDebug(10, ("making %d modules in ring %c", nmod, id)); |
54e415a8 | 316 | for (Int_t i = 0; i < nmod; i++) { |
bf000c32 | 317 | if (i == nmod / 2) halfRing = ringBotVolume; |
318 | Bool_t front = (i % 2 == 0); | |
319 | Double_t z1 = siThick / 2 + (i % 2) * modSpace; | |
320 | Double_t z2 = z1 + siThick / 2 + space; | |
321 | Double_t th = (2 * i + 1) * theta; | |
322 | TGeoVolume* vol = (front ? frontVolume : backVolume); | |
f95a63c4 | 323 | AliFMDDebug(20, ("Placing copy %d of %s and %s in %s at z=%f and %f, " |
bf000c32 | 324 | "and theta=%f", i, sensorVolume->GetName(), |
325 | vol->GetName(), halfRing->GetName(), z1, z2, th)); | |
326 | TGeoMatrix* mat1 = new TGeoCombiTrans(0,0,z1,0); | |
327 | mat1->RotateZ(th); | |
328 | halfRing->AddNode(sensorVolume, i, mat1); | |
329 | TGeoMatrix* mat2 = new TGeoCombiTrans(0,0,z2,0); | |
330 | mat2->RotateZ(th); | |
331 | halfRing->AddNode(vol, i, mat2); | |
54e415a8 | 332 | } |
333 | ||
bf000c32 | 334 | return 0; |
54e415a8 | 335 | } |
336 | ||
337 | //____________________________________________________________________ | |
338 | TGeoVolume* | |
339 | AliFMDGeometryBuilder::DetectorGeometry(AliFMDDetector* d, | |
bf000c32 | 340 | TGeoVolume* topMother, |
341 | TGeoVolume* botMother, | |
342 | Double_t zMother, | |
343 | TGeoVolume* innerTop, | |
344 | TGeoVolume* innerBot, | |
345 | TGeoVolume* outerTop, | |
346 | TGeoVolume* outerBot) | |
54e415a8 | 347 | { |
348 | // Common stuff for setting up the FMD1, FMD2, and FMD3 geometries. | |
349 | // This includes putting the Honeycomb support plates and the rings | |
350 | // into the mother volumes. | |
351 | // | |
352 | // Parameeters: | |
353 | // d The detector geometry to use | |
354 | // mother The mother volume of the detector | |
355 | // zmother The midpoint in global coordinates of detector vol. | |
356 | // inner Pointer to inner ring volume | |
357 | // outer Pointer to outer ring volume | |
358 | // | |
359 | // Returns: | |
360 | // Pointer to mother (detector volume) | |
361 | // | |
362 | if (!d) return 0; | |
363 | // Loop over the defined rings | |
364 | for (int i = 0; i < 2; i++) { | |
365 | AliFMDRing* r = 0; | |
366 | Double_t lowr = 0; | |
367 | Double_t highr = 0; | |
368 | Double_t rz = 0; | |
bf000c32 | 369 | TGeoVolume* tvol = 0; |
370 | TGeoVolume* bvol = 0; | |
54e415a8 | 371 | switch (i) { |
372 | case 0: | |
373 | r = d->GetInner(); | |
374 | lowr = d->GetInnerHoneyLowR(); | |
375 | highr = d->GetInnerHoneyHighR(); | |
376 | rz = d->GetInnerZ(); | |
bf000c32 | 377 | tvol = innerTop; |
378 | bvol = innerBot; | |
54e415a8 | 379 | break; |
380 | case 1: | |
381 | r = d->GetOuter(); | |
382 | lowr = d->GetOuterHoneyLowR(); | |
383 | highr = d->GetOuterHoneyHighR(); | |
384 | rz = d->GetOuterZ(); | |
bf000c32 | 385 | tvol = outerTop; |
386 | bvol = outerBot; | |
54e415a8 | 387 | break; |
388 | } | |
389 | if (!r) continue; | |
390 | Char_t c = r->GetId(); | |
391 | Int_t id = d->GetId(); | |
392 | Double_t hcThick = d->GetHoneycombThickness(); | |
393 | Double_t alThick = d->GetAlThickness(); | |
bf000c32 | 394 | Double_t z = TMath::Abs(rz - zMother); |
395 | ||
54e415a8 | 396 | // Place ring in mother volume |
bf000c32 | 397 | // TGeoMatrix*matrix=new TGeoTranslation(Form("FMD%d%c trans",id,c),0,0,0); |
f95a63c4 | 398 | AliFMDDebug(5, ("Placing volumes %s and %s in %s and %s at z=%f", |
bf000c32 | 399 | tvol->GetName(), bvol->GetName(), |
400 | topMother->GetName(), botMother->GetName(), z)); | |
401 | topMother->AddNode(tvol, Int_t(c), new TGeoTranslation(0,0,z)); | |
402 | botMother->AddNode(bvol, Int_t(c), new TGeoTranslation(0,0,z)); | |
54e415a8 | 403 | |
54e415a8 | 404 | // Top of Honeycomb |
bf000c32 | 405 | TGeoTubeSeg* hcSha = new TGeoTubeSeg(lowr, highr, hcThick/2, 0, 180); |
406 | TGeoVolume* hcVol = new TGeoVolume(Form(fgkHCName,id,c),hcSha,fAl); | |
54e415a8 | 407 | // Air in top of honeycomb |
bf000c32 | 408 | TGeoTubeSeg* ihcSha = new TGeoTubeSeg(lowr+alThick, highr - alThick, |
409 | (hcThick-alThick)/2, 0, 180); | |
410 | TGeoVolume* ihcVol = new TGeoVolume(Form(fgkIHCName,id,c),ihcSha,fAir); | |
411 | hcVol->AddNode(ihcVol, 0); | |
412 | hcVol->VisibleDaughters(kFALSE); | |
413 | hcVol->SetVisibility(kTRUE); | |
414 | ||
415 | z += (r->GetSiThickness() + | |
416 | r->GetSpacing() + | |
417 | r->GetPrintboardThickness() + | |
418 | r->GetCopperThickness() + | |
419 | r->GetChipThickness() + | |
420 | r->GetModuleSpacing() + | |
421 | r->GetLegLength() + | |
422 | hcThick / 2); | |
423 | ||
f95a63c4 | 424 | AliFMDDebug(15, ("Placing a copy of %s in %s and %s at z=%f", |
bf000c32 | 425 | hcVol->GetName(), topMother->GetName(), |
426 | botMother->GetName(), z)); | |
427 | // Add to top | |
428 | topMother->AddNode(hcVol, 0, new TGeoTranslation(0, 0, z)); | |
429 | ||
430 | // Add to bottom | |
431 | TGeoMatrix* bhcMatrix = new TGeoCombiTrans(0,0,z,0); | |
432 | bhcMatrix->RotateZ(180); | |
433 | botMother->AddNode(hcVol, 1, bhcMatrix); | |
54e415a8 | 434 | } |
bf000c32 | 435 | return 0; |
54e415a8 | 436 | } |
437 | ||
438 | //____________________________________________________________________ | |
439 | TGeoVolume* | |
bf000c32 | 440 | AliFMDGeometryBuilder::FMD1Geometry(AliFMD1* fmd1, |
441 | TGeoVolume* innerTop, | |
442 | TGeoVolume* innerBot) | |
54e415a8 | 443 | { |
444 | // Setup the FMD1 geometry. The FMD1 only has one ring, and no | |
445 | // special support as it is at the momement. | |
446 | // | |
447 | // See also AliFMDGeometryBuilder::DetectorGeometry | |
448 | // | |
bf000c32 | 449 | if (!fmd1 || !innerTop || !innerBot) return 0; |
450 | Double_t z = fmd1->GetInnerZ(); | |
451 | TGeoVolume* fmd1TopVolume = new TGeoVolumeAssembly(Form(fgkFMDName, | |
452 | fmd1->GetId(), 'T')); | |
453 | TGeoVolume* fmd1BotVolume = new TGeoVolumeAssembly(Form(fgkFMDName, | |
454 | fmd1->GetId(), 'B')); | |
54e415a8 | 455 | |
bf000c32 | 456 | // Basic detector geometry |
457 | DetectorGeometry(fmd1, fmd1TopVolume, fmd1BotVolume, z, | |
458 | innerTop, innerBot, 0, 0); | |
459 | ||
460 | // Must add this after filling the assembly. | |
461 | TGeoVolume* top = gGeoManager->GetVolume("ALIC"); | |
462 | TGeoMatrix* matrix = new TGeoTranslation("FMD1 trans", 0, 0, z); | |
f95a63c4 | 463 | AliFMDDebug(5, ("Placing volumes %s and %s in ALIC at z=%f", |
bf000c32 | 464 | fmd1TopVolume->GetName(), fmd1BotVolume->GetName(), z)); |
465 | top->AddNode(fmd1TopVolume, fmd1->GetId(), matrix); | |
466 | top->AddNode(fmd1BotVolume, fmd1->GetId(), matrix); | |
467 | ||
468 | return 0; | |
54e415a8 | 469 | } |
470 | ||
471 | //____________________________________________________________________ | |
472 | TGeoVolume* | |
473 | AliFMDGeometryBuilder::FMD2Geometry(AliFMD2* fmd2, | |
bf000c32 | 474 | TGeoVolume* innerTop, |
475 | TGeoVolume* innerBot, | |
476 | TGeoVolume* outerTop, | |
477 | TGeoVolume* outerBot) | |
54e415a8 | 478 | { |
479 | // Setup the FMD2 geometry. The FMD2 has no | |
480 | // special support as it is at the momement. | |
481 | // | |
482 | // See also AliFMDGeometryBuilder::DetectorGeometry | |
483 | // | |
bf000c32 | 484 | if (!fmd2 || !innerTop || !innerBot || !outerTop || !outerBot) return 0; |
485 | Double_t z = fmd2->GetOuterZ(); | |
486 | TGeoVolume* fmd2TopVolume = new TGeoVolumeAssembly(Form(fgkFMDName, | |
487 | fmd2->GetId(), 'T')); | |
488 | TGeoVolume* fmd2BotVolume = new TGeoVolumeAssembly(Form(fgkFMDName, | |
489 | fmd2->GetId(), 'B')); | |
54e415a8 | 490 | |
bf000c32 | 491 | DetectorGeometry(fmd2, fmd2TopVolume, fmd2BotVolume, z, |
492 | innerTop, innerBot, outerTop, outerBot); | |
493 | ||
494 | // Must be done after filling the assemblies | |
54e415a8 | 495 | TGeoVolume* top = gGeoManager->GetVolume("ALIC"); |
bf000c32 | 496 | TGeoMatrix* matrix = new TGeoTranslation("FMD2 trans", 0, 0, z); |
f95a63c4 | 497 | AliFMDDebug(5, ("Placing volumes %s and %s in ALIC at z=%f", |
bf000c32 | 498 | fmd2TopVolume->GetName(), fmd2BotVolume->GetName(), z)); |
499 | top->AddNode(fmd2TopVolume, fmd2->GetId(), matrix); | |
500 | top->AddNode(fmd2BotVolume, fmd2->GetId(), matrix); | |
54e415a8 | 501 | |
bf000c32 | 502 | return 0; |
54e415a8 | 503 | } |
504 | ||
505 | //____________________________________________________________________ | |
506 | TGeoVolume* | |
507 | AliFMDGeometryBuilder::FMD3Geometry(AliFMD3* fmd3, | |
bf000c32 | 508 | TGeoVolume* innerTop, |
509 | TGeoVolume* innerBot, | |
510 | TGeoVolume* outerTop, | |
511 | TGeoVolume* outerBot) | |
54e415a8 | 512 | { |
513 | // Setup the FMD3 geometry. The FMD2 has a rather elaborate support | |
514 | // structure, as the support will also support the vacuum | |
515 | // beam-pipe. | |
516 | // | |
517 | // See also AliFMDGeometryBuilder::DetectorGeometry | |
518 | // | |
bf000c32 | 519 | if (!fmd3 || !innerTop || !innerBot || !outerTop || !outerBot) return 0; |
54e415a8 | 520 | Double_t nlen = fmd3->GetNoseLength(); |
521 | Double_t nz = fmd3->GetNoseZ(); | |
522 | Double_t noser1 = fmd3->GetNoseLowR(); | |
523 | Double_t noser2 = fmd3->GetNoseHighR(); | |
524 | Double_t conel = fmd3->GetConeLength(); | |
525 | Double_t backl = fmd3->GetBackLength(); | |
526 | Double_t backr1 = fmd3->GetBackLowR(); | |
527 | Double_t backr2 = fmd3->GetBackHighR(); | |
528 | Double_t zdist = conel - backl - nlen; | |
529 | Double_t tdist = backr2 - noser2; | |
530 | Double_t beaml = TMath::Sqrt(zdist * zdist + tdist * tdist); | |
531 | Double_t theta = -180. * TMath::ATan2(tdist, zdist) / TMath::Pi(); | |
54e415a8 | 532 | Double_t flanger = fmd3->GetFlangeR(); |
bf000c32 | 533 | Double_t z = fmd3->GetInnerZ(); // fmd3->GetZ(); |
54e415a8 | 534 | Double_t zi; |
535 | ||
bf000c32 | 536 | TGeoVolume* fmd3TopVolume = new TGeoVolumeAssembly(Form(fgkFMDName, |
537 | fmd3->GetId(), 'T')); | |
538 | TGeoVolume* fmd3BotVolume = new TGeoVolumeAssembly(Form(fgkFMDName, | |
539 | fmd3->GetId(), 'B')); | |
540 | ||
54e415a8 | 541 | |
bf000c32 | 542 | DetectorGeometry(fmd3, fmd3TopVolume, fmd3BotVolume, z, |
543 | innerTop, innerBot, outerTop, outerBot); | |
544 | ||
545 | ||
54e415a8 | 546 | // Nose volume |
bf000c32 | 547 | TGeoTubeSeg* noseShape = new TGeoTubeSeg(noser1, noser2, nlen / 2, 0, 180); |
54e415a8 | 548 | TGeoVolume* noseVolume = new TGeoVolume(fgkNoseName, noseShape, fC); |
bf000c32 | 549 | zi = -nz + nlen / 2 + z; |
550 | ||
551 | fmd3TopVolume->AddNode(noseVolume, 0, new TGeoTranslation(0, 0, zi)); | |
552 | TGeoMatrix* nmatrix = new TGeoCombiTrans(0, 0, zi, 0); | |
553 | nmatrix->RotateZ(180); | |
554 | fmd3BotVolume->AddNode(noseVolume, 1, nmatrix); | |
54e415a8 | 555 | |
556 | // Back | |
bf000c32 | 557 | TGeoTubeSeg* backShape = new TGeoTubeSeg(backr1, backr2, backl / 2, 0, 180); |
54e415a8 | 558 | TGeoVolume* backVolume = new TGeoVolume(fgkBackName, backShape, fC); |
bf000c32 | 559 | zi = -nz + conel - backl / 2 + z; |
560 | fmd3TopVolume->AddNode(backVolume, 0, new TGeoTranslation(0, 0, zi)); | |
561 | TGeoMatrix* bmatrix = new TGeoCombiTrans(0, 0, zi, 0); | |
562 | bmatrix->RotateZ(180); | |
563 | fmd3BotVolume->AddNode(backVolume, 1, bmatrix); | |
564 | ||
54e415a8 | 565 | |
566 | Int_t n; | |
567 | Double_t r; | |
568 | // The flanges | |
569 | TGeoBBox* flangeShape = new TGeoBBox((flanger - backr2) / 2, | |
570 | fmd3->GetBeamWidth() / 2, | |
571 | backl / 2); | |
572 | TGeoVolume* flangeVolume = new TGeoVolume(fgkFlangeName, flangeShape, fC); | |
bf000c32 | 573 | n = fmd3->GetNFlange(); |
574 | r = backr2 + (flanger - backr2) / 2; | |
575 | TGeoVolume* mother = fmd3TopVolume; | |
54e415a8 | 576 | for (Int_t i = 0; i < n; i++) { |
bf000c32 | 577 | if (i >= n / 2) mother = fmd3BotVolume; |
578 | Double_t phi = 360. / n * i + 180. / n; | |
579 | Double_t x = r * TMath::Cos(TMath::Pi() / 180 * phi); | |
580 | Double_t y = r * TMath::Sin(TMath::Pi() / 180 * phi); | |
f95a63c4 | 581 | AliFMDDebug(15, ("Placing flange %d in %s at (%f,%f,%f) r=%f, phi=%f", |
bf000c32 | 582 | i, mother->GetName(), x, y, zi, r, phi)); |
583 | TGeoRotation* rot = new TGeoRotation; | |
54e415a8 | 584 | rot->RotateZ(phi); |
bf000c32 | 585 | TGeoMatrix* matrix = new TGeoCombiTrans(x, y, zi, rot); |
586 | mother->AddNode(flangeVolume, i, matrix); | |
54e415a8 | 587 | } |
588 | ||
589 | // The Beams | |
590 | TGeoBBox* beamShape = new TGeoBBox(fmd3->GetBeamThickness() / 2, | |
591 | fmd3->GetBeamWidth() / 2 - .1, | |
592 | beaml / 2); | |
593 | TGeoVolume* beamVolume = new TGeoVolume(fgkBeamName, beamShape, fC); | |
bf000c32 | 594 | n = fmd3->GetNBeam(); |
595 | r = noser2 + tdist / 2; | |
596 | zi = - nz + nlen + zdist / 2 + z; | |
597 | mother = fmd3TopVolume; | |
54e415a8 | 598 | for (Int_t i = 0; i < n; i++) { |
bf000c32 | 599 | if (i >= n / 2) mother = fmd3BotVolume; |
600 | Double_t phi = 360. / n * i; | |
601 | Double_t x = r * TMath::Cos(TMath::Pi() / 180 * phi); | |
602 | Double_t y = r * TMath::Sin(TMath::Pi() / 180 * phi); | |
54e415a8 | 603 | TGeoRotation* rot = new TGeoRotation(Form("FMD3 beam rotation %d", i)); |
604 | // Order is important | |
605 | rot->RotateY(-theta); | |
606 | rot->RotateZ(phi); | |
bf000c32 | 607 | TGeoMatrix* matrix = new TGeoCombiTrans(Form("FMD3 beam trans %d", i), |
54e415a8 | 608 | x, y, zi, rot); |
bf000c32 | 609 | mother->AddNode(beamVolume, i, matrix); |
54e415a8 | 610 | } |
611 | ||
bf000c32 | 612 | z = fmd3->GetInnerZ(); |
613 | TGeoRotation* rot = new TGeoRotation("FMD3 rotatation"); | |
614 | rot->RotateY(180); | |
615 | TGeoVolume* top = gGeoManager->GetVolume("ALIC"); | |
616 | TGeoMatrix* mmatrix = new TGeoCombiTrans("FMD3 trans", 0, 0, z, rot); | |
f95a63c4 | 617 | AliFMDDebug(5, ("Placing volumes %s and %s in ALIC at z=%f", |
bf000c32 | 618 | fmd3TopVolume->GetName(), fmd3BotVolume->GetName(), z)); |
619 | top->AddNode(fmd3TopVolume, fmd3->GetId(), mmatrix); | |
620 | top->AddNode(fmd3BotVolume, fmd3->GetId(), mmatrix); | |
621 | ||
622 | return 0; | |
54e415a8 | 623 | } |
624 | ||
625 | //____________________________________________________________________ | |
626 | void | |
627 | AliFMDGeometryBuilder::Exec(Option_t*) | |
628 | { | |
629 | // Setup up the FMD geometry. | |
f95a63c4 | 630 | AliFMDDebug(1, ("\tGeometry options: %s", |
bf000c32 | 631 | (fDetailed ? "divided into strips" : "one volume"))); |
54e415a8 | 632 | if (!gGeoManager) { |
633 | AliFatal("No TGeoManager defined"); | |
634 | return; | |
635 | } | |
636 | ||
637 | fSi = gGeoManager->GetMedium("FMD_Si$"); | |
638 | fC = gGeoManager->GetMedium("FMD_Carbon$"); | |
639 | fAl = gGeoManager->GetMedium("FMD_Aluminum$"); | |
640 | fChip = gGeoManager->GetMedium("FMD_Si Chip$"); | |
641 | fAir = gGeoManager->GetMedium("FMD_Air$"); | |
642 | fPCB = gGeoManager->GetMedium("FMD_PCB$"); | |
643 | fPlastic = gGeoManager->GetMedium("FMD_Plastic$"); | |
644 | fCopper = gGeoManager->GetMedium("FMD_Copper$"); | |
645 | ||
646 | if (!fSi||!fC||!fAl||!fChip||!fAir||!fPCB||!fPlastic||!fCopper) { | |
647 | AliError("Failed to get some or all tracking mediums"); | |
648 | return; | |
649 | } | |
650 | AliFMDGeometry* fmd = AliFMDGeometry::Instance(); | |
bf000c32 | 651 | AliFMDRing* inner = fmd->GetInner(); |
652 | AliFMDRing* outer = fmd->GetOuter(); | |
653 | RingGeometry(inner); | |
654 | RingGeometry(outer); | |
655 | TGeoVolume* innerTop = gGeoManager->GetVolume(Form(fgkRingTopName, | |
656 | inner->GetId())); | |
657 | TGeoVolume* innerBot = gGeoManager->GetVolume(Form(fgkRingBotName, | |
658 | inner->GetId())); | |
659 | TGeoVolume* outerTop = gGeoManager->GetVolume(Form(fgkRingTopName, | |
660 | outer->GetId())); | |
661 | TGeoVolume* outerBot = gGeoManager->GetVolume(Form(fgkRingBotName, | |
662 | outer->GetId())); | |
663 | ||
664 | FMD1Geometry(fmd->GetFMD1(), innerTop, innerBot); | |
665 | FMD2Geometry(fmd->GetFMD2(), innerTop, innerBot, outerTop, outerBot); | |
666 | FMD3Geometry(fmd->GetFMD3(), innerTop, innerBot, outerTop, outerBot); | |
54e415a8 | 667 | #ifndef USE_PRE_MOVE |
668 | fmd->SetSectorOff(fSectorOff); | |
669 | fmd->SetModuleOff(fModuleOff); | |
670 | fmd->SetRingOff(fRingOff); | |
671 | fmd->SetDetectorOff(fDetectorOff); | |
672 | fmd->SetActive(fActiveId.fArray, fActiveId.fN); | |
673 | #endif | |
674 | // fmd->ExtractGeomInfo(); | |
675 | ||
676 | } | |
677 | ||
678 | ||
679 | //____________________________________________________________________ | |
680 | // | |
681 | // EOF | |
682 | // |