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25 //
26 // Implementation of the base class for solids
27 // operations between other solids
28 //
29 // 1998.09.10 V.Grichine - created
30 // -------------------------------------------
31
32 #include "G4BooleanSolid.hh"
33 #include "G4VSolid.hh"
34 #include "G4DisplacedSolid.hh"
35 #include "G4ReflectedSolid.hh"
36 #include "G4ScaledSolid.hh"
37 #include "G4Polyhedron.hh"
38 #include "HepPolyhedronProcessor.h"
39 #include "G4QuickRand.hh"
40
41 #include "G4AutoLock.hh"
42
43 namespace
44 {
45 G4RecursiveMutex polyhedronMutex = G4MUTEX_I
46 }
47
48 G4VBooleanProcessor* G4BooleanSolid::fExternal
49
50 //////////////////////////////////////////////
51 //
52 // Constructor
53
54 G4BooleanSolid::G4BooleanSolid( const G4String
55 G4VSolid* pSol
56 G4VSolid* pSol
57 : G4VSolid(pName), fPtrSolidA(pSolidA), fPtr
58 {
59 }
60
61 //////////////////////////////////////////////
62 //
63 // Constructor
64
65 G4BooleanSolid::G4BooleanSolid( const G4String
66 G4VSolid
67 G4VSolid
68 G4Rotati
69 const G4ThreeV
70 : G4VSolid(pName), createdDisplacedSolid(tru
71 {
72 fPtrSolidA = pSolidA ;
73 fPtrSolidB = new G4DisplacedSolid("placedB",
74 }
75
76 //////////////////////////////////////////////
77 //
78 // Constructor
79
80 G4BooleanSolid::G4BooleanSolid( const G4String
81 G4VSolid
82 G4VSolid
83 const G4Transf
84 : G4VSolid(pName), createdDisplacedSolid(tru
85 {
86 fPtrSolidA = pSolidA ;
87 fPtrSolidB = new G4DisplacedSolid("placedB",
88 }
89
90 //////////////////////////////////////////////
91 //
92 // Fake default constructor - sets only member
93 // for usage restri
94
95 G4BooleanSolid::G4BooleanSolid( __void__& a )
96 : G4VSolid(a)
97 {
98 }
99
100 //////////////////////////////////////////////
101 //
102 // Destructor deletes transformation contents
103
104 G4BooleanSolid::~G4BooleanSolid()
105 {
106 if(createdDisplacedSolid)
107 {
108 ((G4DisplacedSolid*)fPtrSolidB)->CleanTran
109 }
110 delete fpPolyhedron; fpPolyhedron = nullptr;
111 }
112
113 //////////////////////////////////////////////
114 //
115 // Copy constructor
116
117 G4BooleanSolid::G4BooleanSolid(const G4Boolean
118 : G4VSolid (rhs), fPtrSolidA(rhs.fPtrSolidA)
119 fCubicVolume(rhs.fCubicVolume), fSurfaceAr
120 fCubVolStatistics(rhs.fCubVolStatistics),
121 fAreaStatistics(rhs.fAreaStatistics),
122 fCubVolEpsilon(rhs.fCubVolEpsilon),
123 fAreaAccuracy(rhs.fAreaAccuracy),
124 createdDisplacedSolid(rhs.createdDisplaced
125 {
126 fPrimitives.resize(0); fPrimitivesSurfaceAre
127 }
128
129 //////////////////////////////////////////////
130 //
131 // Assignment operator
132
133 G4BooleanSolid& G4BooleanSolid::operator = (co
134 {
135 // Check assignment to self
136 //
137 if (this == &rhs) { return *this; }
138
139 // Copy base class data
140 //
141 G4VSolid::operator=(rhs);
142
143 // Copy data
144 //
145 fPtrSolidA= rhs.fPtrSolidA; fPtrSolidB= rhs.
146 fCubicVolume= rhs.fCubicVolume; fSurfaceArea
147 fCubVolStatistics = rhs.fCubVolStatistics; f
148 fAreaStatistics = rhs.fAreaStatistics; fArea
149 createdDisplacedSolid= rhs.createdDisplacedS
150
151 fRebuildPolyhedron = false;
152 delete fpPolyhedron; fpPolyhedron = nullptr;
153 fPrimitives.resize(0); fPrimitivesSurfaceAre
154
155 return *this;
156 }
157
158 //////////////////////////////////////////////
159 //
160 // If solid is made up from a Boolean operatio
161 // return the corresponding solid (for no=0 an
162 // If the solid is not a "Boolean", return 0
163
164 const G4VSolid* G4BooleanSolid::GetConstituent
165 {
166 const G4VSolid* subSolid = nullptr;
167 if( no == 0 )
168 subSolid = fPtrSolidA;
169 else if( no == 1 )
170 subSolid = fPtrSolidB;
171 else
172 {
173 DumpInfo();
174 G4Exception("G4BooleanSolid::GetConstituen
175 "GeomSolids0002", FatalExcepti
176 }
177 return subSolid;
178 }
179
180 //////////////////////////////////////////////
181 //
182 // If solid is made up from a Boolean operatio
183 // return the corresponding solid (for no=0 an
184 // If the solid is not a "Boolean", return 0
185
186 G4VSolid* G4BooleanSolid::GetConstituentSolid(
187 {
188 G4VSolid* subSolid = nullptr;
189 if( no == 0 )
190 subSolid = fPtrSolidA;
191 else if( no == 1 )
192 subSolid = fPtrSolidB;
193 else
194 {
195 DumpInfo();
196 G4Exception("G4BooleanSolid::GetConstituen
197 "GeomSolids0002", FatalExcepti
198 }
199 return subSolid;
200 }
201
202 //////////////////////////////////////////////
203 //
204 // Returns entity type
205
206 G4GeometryType G4BooleanSolid::GetEntityType()
207 {
208 return {"G4BooleanSolid"};
209 }
210
211 //////////////////////////////////////////////
212 //
213 // Set number of random points to be used for
214
215 void G4BooleanSolid::SetCubVolStatistics(G4int
216 {
217 if (st != fCubVolStatistics) { fCubicVolume
218 fCubVolStatistics = st;
219
220 // Propagate st to all components of the 1st
221 if (fPtrSolidA->GetNumOfConstituents() > 1)
222 {
223 G4VSolid* ptr = fPtrSolidA;
224 while(true)
225 {
226 G4String type = ptr->GetEntityType();
227 if (type == "G4DisplacedSolid")
228 {
229 ptr = ((G4DisplacedSolid*)ptr)->GetCon
230 continue;
231 }
232 if (type == "G4ReflectedSolid")
233 {
234 ptr = ((G4ReflectedSolid*)ptr)->GetCon
235 continue;
236 }
237 if (type == "G4ScaledSolid")
238 {
239 ptr = ((G4ScaledSolid*)ptr)->GetUnscal
240 continue;
241 }
242 if (type != "G4MultiUnion") // G4MultiUn
243 {
244 ((G4BooleanSolid*)ptr)->SetCubVolStatistics(
245 }
246 break;
247 }
248 }
249
250 // Propagate st to all components of the 2nd
251 if (fPtrSolidB->GetNumOfConstituents() > 1)
252 {
253 G4VSolid* ptr = fPtrSolidB;
254 while(true)
255 {
256 G4String type = ptr->GetEntityType();
257 if (type == "G4DisplacedSolid")
258 {
259 ptr = ((G4DisplacedSolid*)ptr)->GetCon
260 continue;
261 }
262 if (type == "G4ReflectedSolid")
263 {
264 ptr = ((G4ReflectedSolid*)ptr)->GetCon
265 continue;
266 }
267 if (type == "G4ScaledSolid")
268 {
269 ptr = ((G4ScaledSolid*)ptr)->GetUnscal
270 continue;
271 }
272 if (type != "G4MultiUnion") // G4MultiUn
273 {
274 ((G4BooleanSolid*)ptr)->SetCubVolStatistics(
275 }
276 break;
277 }
278 }
279 }
280
281 //////////////////////////////////////////////
282 //
283 // Set epsilon for computing cubic volume
284
285 void G4BooleanSolid::SetCubVolEpsilon(G4double
286 {
287 if (ep != fCubVolEpsilon) { fCubicVolume = -
288 fCubVolEpsilon = ep;
289
290 // Propagate ep to all components of the 1st
291 if (fPtrSolidA->GetNumOfConstituents() > 1)
292 {
293 G4VSolid* ptr = fPtrSolidA;
294 while(true)
295 {
296 G4String type = ptr->GetEntityType();
297 if (type == "G4DisplacedSolid")
298 {
299 ptr = ((G4DisplacedSolid*)ptr)->GetCon
300 continue;
301 }
302 if (type == "G4ReflectedSolid")
303 {
304 ptr = ((G4ReflectedSolid*)ptr)->GetCon
305 continue;
306 }
307 if (type == "G4ScaledSolid")
308 {
309 ptr = ((G4ScaledSolid*)ptr)->GetUnscal
310 continue;
311 }
312 if (type != "G4MultiUnion") // G4MultiUn
313 {
314 ((G4BooleanSolid*)ptr)->SetCubVolEpsilon(ep)
315 }
316 break;
317 }
318 }
319
320 // Propagate ep to all components of the 2nd
321 if (fPtrSolidB->GetNumOfConstituents() > 1)
322 {
323 G4VSolid* ptr = fPtrSolidB;
324 while(true)
325 {
326 G4String type = ptr->GetEntityType();
327 if (type == "G4DisplacedSolid")
328 {
329 ptr = ((G4DisplacedSolid*)ptr)->GetCon
330 continue;
331 }
332 if (type == "G4ReflectedSolid")
333 {
334 ptr = ((G4ReflectedSolid*)ptr)->GetCon
335 continue;
336 }
337 if (type == "G4ScaledSolid")
338 {
339 ptr = ((G4ScaledSolid*)ptr)->GetUnscal
340 continue;
341 }
342 if (type != "G4MultiUnion") // G4MultiUn
343 {
344 ((G4BooleanSolid*)ptr)->SetCubVolEpsilon(ep)
345 }
346 break;
347 }
348 }
349 }
350
351 //////////////////////////////////////////////
352 //
353 // Stream object contents to an output stream
354
355 std::ostream& G4BooleanSolid::StreamInfo(std::
356 {
357 os << "-------------------------------------
358 << " *** Dump for Boolean solid - " <<
359 << " =================================
360 << " Solid type: " << GetEntityType() <<
361 << " Parameters of constituent solids: \n
362 << "=====================================
363 fPtrSolidA->StreamInfo(os);
364 fPtrSolidB->StreamInfo(os);
365 os << "=====================================
366
367 return os;
368 }
369
370 //////////////////////////////////////////////
371 //
372 // Creates list of constituent primitives of a
373
374 void G4BooleanSolid::GetListOfPrimitives(
375 std::vector<std::pair<G4VSolid*,G4Trans
376 const G4Transform3D& curPlacement) cons
377 {
378 G4Transform3D transform;
379 G4VSolid* solid;
380 G4String type;
381
382 // Repeat two times, first time for fPtrSoli
383 //
384 for (auto i=0; i<2; ++i)
385 {
386 transform = curPlacement;
387 solid = (i == 0) ? fPtrSolidA : fPtrSo
388 type = solid->GetEntityType();
389
390 // While current solid is a trasformed sol
391 //
392 while (type == "G4DisplacedSolid" ||
393 type == "G4ReflectedSolid" ||
394 type == "G4ScaledSolid")
395 {
396 if (type == "G4DisplacedSolid")
397 {
398 transform = transform * G4Transform3D(
399 ((G4DisplacedSolid*)solid)
400 ((G4DisplacedSolid*)solid)
401 solid = ((G4DisplacedSolid*)solid)
402 }
403 else if (type == "G4ReflectedSolid")
404 {
405 transform= transform*((G4ReflectedSoli
406 solid = ((G4ReflectedSolid*)solid)-
407 }
408 else if (type == "G4ScaledSolid")
409 {
410 transform = transform * ((G4ScaledSoli
411 solid = ((G4ScaledSolid*)solid)->G
412 }
413 type = solid->GetEntityType();
414 }
415
416 // If current solid is a Boolean solid the
417 // otherwise add it to the list of primiti
418 //
419 if (type == "G4UnionSolid" ||
420 type == "G4SubtractionSolid" ||
421 type == "G4IntersectionSolid" ||
422 type == "G4BooleanSolid")
423 {
424 ((G4BooleanSolid *)solid)->GetListOfPrim
425 }
426 else
427 {
428 primitives.emplace_back(solid,transform)
429 }
430 }
431 }
432
433 //////////////////////////////////////////////
434 //
435 // Returns a point (G4ThreeVector) randomly an
436 // on the surface of the solid
437
438 G4ThreeVector G4BooleanSolid::GetPointOnSurfac
439 {
440 std::size_t nprims = fPrimitives.size();
441 std::pair<G4VSolid *, G4Transform3D> prim;
442
443 // Get list of primitives and find the total
444 //
445 if (nprims == 0)
446 {
447 GetListOfPrimitives(fPrimitives, G4Transfo
448 nprims = fPrimitives.size();
449 fPrimitivesSurfaceArea = 0.;
450 for (std::size_t i=0; i<nprims; ++i)
451 {
452 fPrimitivesSurfaceArea += fPrimitives[i]
453 }
454 }
455
456 // Select random primitive, get random point
457 // check that the point belongs to the surfa
458 //
459 G4ThreeVector p;
460 for (std::size_t k=0; k<100000; ++k) // try
461 {
462 G4double rand = fPrimitivesSurfaceArea *
463 G4double area = 0.;
464 for (std::size_t i=0; i<nprims; ++i)
465 {
466 prim = fPrimitives[i];
467 area += prim.first->GetSurfaceArea();
468 if (rand < area) break;
469 }
470 p = prim.first->GetPointOnSurface();
471 p = prim.second * G4Point3D(p);
472 if (Inside(p) == kSurface) return p;
473 }
474 std::ostringstream message;
475 message << "Solid - " << GetName() << "\n"
476 << "All 100k attempts to generate a
477 << "The solid created may be an inva
478 G4Exception("G4BooleanSolid::GetPointOnSurfa
479 "GeomSolids1001", JustWarning, m
480 return p;
481 }
482
483 //////////////////////////////////////////////
484 //
485 // Return total number of constituents used fo
486
487 G4int G4BooleanSolid::GetNumOfConstituents() c
488 {
489 return (fPtrSolidA->GetNumOfConstituents() +
490 }
491
492 //////////////////////////////////////////////
493 //
494 // Return true if the resulting solid has only
495
496 G4bool G4BooleanSolid::IsFaceted() const
497 {
498 return (fPtrSolidA->IsFaceted() && fPtrSolid
499 }
500
501 //////////////////////////////////////////////
502 //
503 // Returns polyhedron for visualization
504
505 G4Polyhedron* G4BooleanSolid::GetPolyhedron ()
506 {
507 if (fpPolyhedron == nullptr ||
508 fRebuildPolyhedron ||
509 fpPolyhedron->GetNumberOfRotationStepsAt
510 fpPolyhedron->GetNumberOfRotationSteps()
511 {
512 G4RecursiveAutoLock l(&polyhedronMutex);
513 delete fpPolyhedron;
514 fpPolyhedron = CreatePolyhedron();
515 fRebuildPolyhedron = false;
516 l.unlock();
517 }
518 return fpPolyhedron;
519 }
520
521 //////////////////////////////////////////////
522 //
523 // Stacks polyhedra for processing. Returns to
524
525 G4Polyhedron*
526 G4BooleanSolid::StackPolyhedron(HepPolyhedronP
527 const G4VSolid
528 {
529 HepPolyhedronProcessor::Operation operation;
530 const G4String& type = solid->GetEntityType(
531 if (type == "G4UnionSolid")
532 { operation = HepPolyhedronProcessor::UNIO
533 else if (type == "G4IntersectionSolid")
534 { operation = HepPolyhedronProcessor::INTE
535 else if (type == "G4SubtractionSolid")
536 { operation = HepPolyhedronProcessor::SUBT
537 else
538 {
539 std::ostringstream message;
540 message << "Solid - " << solid->GetName()
541 << " - Unrecognised composite soli
542 << " Returning NULL !";
543 G4Exception("StackPolyhedron()", "GeomSoli
544 return nullptr;
545 }
546
547 G4Polyhedron* top = nullptr;
548 const G4VSolid* solidA = solid->GetConstitue
549 const G4VSolid* solidB = solid->GetConstitue
550
551 if (solidA->GetConstituentSolid(0) != nullpt
552 {
553 top = StackPolyhedron(processor, solidA);
554 }
555 else
556 {
557 top = solidA->GetPolyhedron();
558 }
559 G4Polyhedron* operand = solidB->GetPolyhedro
560 if (operand != nullptr)
561 {
562 processor.push_back (operation, *operand);
563 }
564 else
565 {
566 std::ostringstream message;
567 message << "Solid - " << solid->GetName()
568 << " - No G4Polyhedron for Boolean
569 G4Exception("G4BooleanSolid::StackPolyhedr
570 "GeomSolids2001", JustWarning,
571 }
572
573 return top;
574 }
575
576
577 //////////////////////////////////////////////
578 //
579 // Estimate Cubic Volume (capacity) and cache
580
581 G4double G4BooleanSolid::GetCubicVolume()
582 {
583 if(fCubicVolume < 0.)
584 {
585 fCubicVolume = EstimateCubicVolume(fCubVol
586 }
587 return fCubicVolume;
588 }
589
590 //////////////////////////////////////////////
591 //
592 // Set external Boolean processor.
593
594 void
595 G4BooleanSolid::SetExternalBooleanProcessor(G4
596 {
597 fExternalBoolProcessor = extProcessor;
598 }
599
600 //////////////////////////////////////////////
601 //
602 // Get external Boolean processor.
603
604 G4VBooleanProcessor* G4BooleanSolid::GetExtern
605 {
606 return fExternalBoolProcessor;
607 }
608