1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
3 * SigmaEffect_thetadegrees *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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 purpeateose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 // Class AliMUONGeometryBuilder
19 // ----------------------------
20 // Manager class for geometry construction via geometry builders.
22 // Author: Ivana Hrivnacova, IPN Orsay
24 #include <TObjArray.h>
25 #include <TVirtualMC.h>
27 #include "AliMUONGeometryBuilder.h"
28 #include "AliMUONVGeometryBuilder.h"
29 #include "AliMUONGeometryModule.h"
30 #include "AliMUONGeometryEnvelope.h"
31 #include "AliMUONGeometryEnvelopeStore.h"
32 #include "AliMUONGeometryDetElement.h"
33 #include "AliMUONGeometryStore.h"
34 #include "AliMUONGeometryConstituent.h"
35 #include "AliModule.h"
38 ClassImp(AliMUONGeometryBuilder)
40 //______________________________________________________________________________
41 AliMUONGeometryBuilder::AliMUONGeometryBuilder(AliModule* module)
45 fGlobalTransformation(),
48 // Standard constructor
50 fGeometryBuilders = new TObjArray(100);
53 //______________________________________________________________________________
54 AliMUONGeometryBuilder::AliMUONGeometryBuilder()
58 fGlobalTransformation(),
61 // Default constructor
64 //______________________________________________________________________________
65 AliMUONGeometryBuilder::AliMUONGeometryBuilder(const AliMUONGeometryBuilder& right)
68 // copy constructor (not implemented)
70 AliFatal("Copy constructor not provided.");
73 //______________________________________________________________________________
74 AliMUONGeometryBuilder::~AliMUONGeometryBuilder()
77 if (fGeometryBuilders){
78 fGeometryBuilders->Delete();
79 delete fGeometryBuilders;
83 //______________________________________________________________________________
84 AliMUONGeometryBuilder&
85 AliMUONGeometryBuilder::operator=(const AliMUONGeometryBuilder& right)
87 // assignement operator (not implemented)
89 // check assignement to self
90 if (this == &right) return *this;
92 AliFatal("Assignement operator not provided.");
101 //______________________________________________________________________________
102 void AliMUONGeometryBuilder::PlaceVolume(const TString& name, const TString& mName,
103 Int_t copyNo, const TGeoHMatrix& matrix,
104 Int_t npar, Double_t* param, const char* only) const
106 // Place the volume specified by name with the given transformation matrix
109 // Do not apply global transformation
110 // if mother volume != ALIC
111 // (as it is applied on the mother volume)
112 TGeoHMatrix transform(matrix);
113 if (mName != TString("ALIC"))
114 transform = fGlobalTransformation.Inverse() * transform;
116 // Decompose transformation
117 const Double_t* xyz = transform.GetTranslation();
118 const Double_t* rm = transform.GetRotationMatrix();
120 //cout << "Got translation: "
121 // << xyz[0] << " " << xyz[1] << " " << xyz[2] << endl;
123 //cout << "Got rotation: "
124 // << rm[0] << " " << rm[1] << " " << rm[2] << endl
125 // << rm[3] << " " << rm[4] << " " << rm[5] << endl
126 // << rm[6] << " " << rm[7] << " " << rm[8] << endl;
128 // Check for presence of rotation
129 // (will be nice to be available in TGeo)
130 const Double_t kTolerance = 1e-04;
131 Bool_t isRotation = true;
132 if (TMath::Abs(rm[0] - 1.) < kTolerance &&
133 TMath::Abs(rm[1] - 0.) < kTolerance &&
134 TMath::Abs(rm[2] - 0.) < kTolerance &&
135 TMath::Abs(rm[3] - 0.) < kTolerance &&
136 TMath::Abs(rm[4] - 1.) < kTolerance &&
137 TMath::Abs(rm[5] - 0.) < kTolerance &&
138 TMath::Abs(rm[6] - 0.) < kTolerance &&
139 TMath::Abs(rm[7] - 0.) < kTolerance &&
140 TMath::Abs(rm[8] - 1.) < kTolerance) isRotation = false;
145 rot.SetMatrix(const_cast<Double_t*>(transform.GetRotationMatrix()));
146 Double_t theta1, phi1, theta2, phi2, theta3, phi3;
147 rot.GetAngles(theta1, phi1, theta2, phi2, theta3, phi3);
150 // << theta1 << " " << phi1 << " "
151 // << theta2 << " " << phi2 << " "
152 // << theta3 << " " << phi3 << endl;
154 fModule->AliMatrix(krot, theta1, phi1, theta2, phi2, theta3, phi3);
157 // Place the volume in ALIC
159 gMC->Gspos(name, copyNo, mName, xyz[0], xyz[1], xyz[2] , krot, only);
161 gMC->Gsposp(name, copyNo, mName, xyz[0], xyz[1], xyz[2] , krot, only,
166 //______________________________________________________________________________
167 void AliMUONGeometryBuilder::FillGlobalTransformations(
168 AliMUONVGeometryBuilder* builder)
170 // Compute and set global transformations to detection elements
171 // for each chamber geometry
174 for (Int_t j=0; j<builder->NofGeometries(); j++) {
176 AliMUONGeometryModule* geometry = builder->Geometry(j);
177 AliMUONGeometryStore* detElements = geometry->GetDetElementStore();
179 for (Int_t k=0; k<detElements->GetNofEntries(); k++) {
181 AliMUONGeometryDetElement* detElement
182 = (AliMUONGeometryDetElement*)detElements->GetEntry(k);
184 if (!detElement) AliFatal("Detection element not found.")
186 const TGeoCombiTrans* localTransform
187 = detElement->GetLocalTransformation();
189 // Compose global transformation
191 = fGlobalTransformation *
192 (*geometry->GetTransformation()) *
193 fGlobalTransformation.Inverse() *
195 // !! The local detection element frame is
196 // defined wrt the new ALICE coordinate system:
197 // TGL = Tglobal * Tchamber * Tde
198 // = Tglobal * Tchamber * Tglobal.inv * Tglobal * Tde
199 // = (Tglobal * Tchamber * Tglobal.inv) * (Tglobal * Tde)
202 // Convert TGeoHMatrix to TGeoCombiTrans
203 TGeoCombiTrans globalTransform(localTransform->GetName());
204 globalTransform.SetTranslation(total.GetTranslation());
205 TGeoRotation rotation;
206 rotation.SetMatrix(total.GetRotationMatrix());
207 globalTransform.SetRotation(rotation);
209 // Set the global transformation to detection element
210 detElement->SetGlobalTransformation(globalTransform);
219 //_____________________________________________________________________________
220 void AliMUONGeometryBuilder::AddBuilder(AliMUONVGeometryBuilder* geomBuilder)
222 // Adds the geometry builder to the list
225 fGeometryBuilders->Add(geomBuilder);
228 //______________________________________________________________________________
229 void AliMUONGeometryBuilder::CreateGeometry()
232 // Construct geometry using geometry builders.
235 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
238 AliMUONVGeometryBuilder* builder
239 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
241 // Create geometry + envelopes
244 builder->ReadTransformations();
245 builder->CreateGeometry();
248 builder->CreateGeometry();
249 builder->SetTransformations();
254 for (Int_t j=0; j<builder->NofGeometries(); j++) {
256 AliMUONGeometryModule* geometry = builder->Geometry(j);
258 // Loop over envelopes
259 const TObjArray* kEnvelopes = geometry->GetEnvelopeStore()->GetEnvelopes();
260 for (Int_t k=0; k<kEnvelopes->GetEntriesFast(); k++) {
263 AliMUONGeometryEnvelope* env = (AliMUONGeometryEnvelope*)kEnvelopes->At(k);
264 const TGeoCombiTrans* kEnvTrans = env->GetTransformation();
265 const char* only = "ONLY";
266 if (env->IsMANY()) only = "MANY";
268 if (env->IsVirtual() && env->GetConstituents()->GetEntriesFast() == 0 ) {
269 // virtual envelope + nof constituents = 0
271 // empty virtual envelope has no sense
272 AliFatal("Virtual envelope must have constituents.");
276 if (!env->IsVirtual() && env->GetConstituents()->GetEntriesFast() > 0 ) {
277 // non virtual envelope + nof constituents > 0
279 // use VMC to place constituents
280 AliFatal("Non virtual envelope cannot have constituents.");
284 if (!env->IsVirtual() && env->GetConstituents()->GetEntriesFast() == 0 ) {
285 // non virtual envelope + nof constituents = 0
286 // => place envelope in ALICE by composed transformation:
287 // Tglobal * Tch * Tenv
289 // Compound chamber transformation with the envelope one
291 = fGlobalTransformation *
292 (*geometry->GetTransformation()) *
294 PlaceVolume(env->GetName(), geometry->GetMotherVolume(),
295 env->GetCopyNo(), total, 0, 0, only);
298 if (env->IsVirtual() && env->GetConstituents()->GetEntriesFast() > 0 ) {
299 // virtual envelope + nof constituents > 0
300 // => do not place envelope and place constituents
301 // in ALICE by composed transformation:
302 // Tglobal * Tch * Tenv * Tconst
304 for (Int_t l=0; l<env->GetConstituents()->GetEntriesFast(); l++) {
305 AliMUONGeometryConstituent* constituent
306 = (AliMUONGeometryConstituent*)env->GetConstituents()->At(l);
308 // Compound chamber transformation with the envelope one + the constituent one
310 = fGlobalTransformation *
311 (*geometry->GetTransformation()) *
313 (*constituent->GetTransformation());
315 PlaceVolume(constituent->GetName(), geometry->GetMotherVolume(),
316 constituent->GetCopyNo(), total,
317 constituent->GetNpar(), constituent->GetParam(), only);
320 } // end of loop over envelopes
321 } // end of loop over builder geometries
322 } // end of loop over builders
325 //_____________________________________________________________________________
326 void AliMUONGeometryBuilder::CreateMaterials()
329 // Construct materials specific to modules via builders
332 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
335 AliMUONVGeometryBuilder* builder
336 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
338 // Create materials with each builder
339 if (builder) builder->CreateMaterials();
343 //______________________________________________________________________________
344 void AliMUONGeometryBuilder::InitGeometry()
346 // Initialize geometry
349 // Set the chamber (sensitive region) GEANT identifier
351 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
354 AliMUONVGeometryBuilder* builder
355 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
357 // Set sesitive volumes with each builder
358 builder->SetSensitiveVolumes();
360 // Read sensitive volume map from a file
361 builder->ReadSVMap();
362 if (!fAlign) builder->FillTransformations();
364 // Compute global transformations of detection elements
365 FillGlobalTransformations(builder);
369 //______________________________________________________________________________
370 void AliMUONGeometryBuilder::WriteTransformations()
372 // Writes transformations into files per builder
375 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
378 AliMUONVGeometryBuilder* builder
379 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
381 // Write transformations
382 builder->WriteTransformations();
386 //______________________________________________________________________________
387 void AliMUONGeometryBuilder::WriteSVMaps(Bool_t rebuild)
389 // Writes sensitive volume maps into files per builder
392 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
395 AliMUONVGeometryBuilder* builder
396 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
398 // Write transformations
399 builder->WriteSVMap(rebuild);
403 //_____________________________________________________________________________
404 void AliMUONGeometryBuilder::SetGlobalTransformation(
405 const TGeoCombiTrans& transform)
407 // Sets the global transformation
410 fGlobalTransformation = transform;
413 //_____________________________________________________________________________
414 void AliMUONGeometryBuilder::SetAlign(Bool_t align)
416 // Sets the option for alignement
421 for (Int_t i=0; i<fGeometryBuilders->GetEntriesFast(); i++) {
424 AliMUONVGeometryBuilder* builder
425 = (AliMUONVGeometryBuilder*)fGeometryBuilders->At(i);
427 for (Int_t j=0; j<builder->NofGeometries(); j++) {
429 AliMUONGeometryModule* geometry = builder->Geometry(j);
431 geometry->SetAlign(align);