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25 //
26 // Implementation for G4ReflectedSolid class
27 //
28 // Author: Vladimir Grichine, 23.07.01 (Vladimir.Grichine@cern.ch)
29 // --------------------------------------------------------------------
30
31 #include "G4ReflectedSolid.hh"
32
33 #include <sstream>
34
35 #include "G4Point3D.hh"
36 #include "G4Vector3D.hh"
37
38 #include "G4AffineTransform.hh"
39 #include "G4Transform3D.hh"
40 #include "G4VoxelLimits.hh"
41
42 #include "G4VPVParameterisation.hh"
43
44 #include "G4VGraphicsScene.hh"
45 #include "G4Polyhedron.hh"
46
47 /////////////////////////////////////////////////////////////////
48 //
49 // Constructor using HepTransform3D, in fact HepReflect3D
50
51 G4ReflectedSolid::G4ReflectedSolid( const G4String& pName,
52 G4VSolid* pSolid ,
53 const G4Transform3D& transform )
54 : G4VSolid(pName)
55 {
56 fPtrSolid = pSolid;
57 fDirectTransform3D = new G4Transform3D(transform);
58 }
59
60 ///////////////////////////////////////////////////////////////////
61 //
62
63 G4ReflectedSolid::~G4ReflectedSolid()
64 {
65 delete fDirectTransform3D; fDirectTransform3D = nullptr;
66 delete fpPolyhedron; fpPolyhedron = nullptr;
67 }
68
69 ///////////////////////////////////////////////////////////////////
70 //
71
72 G4ReflectedSolid::G4ReflectedSolid(const G4ReflectedSolid& rhs)
73 : G4VSolid(rhs), fPtrSolid(rhs.fPtrSolid)
74 {
75 fDirectTransform3D = new G4Transform3D(*rhs.fDirectTransform3D);
76 }
77
78 ///////////////////////////////////////////////////////////////////
79 //
80
81 G4ReflectedSolid& G4ReflectedSolid::operator=(const G4ReflectedSolid& rhs)
82 {
83 // Check assignment to self
84 //
85 if (this == &rhs) { return *this; }
86
87 // Copy base class data
88 //
89 G4VSolid::operator=(rhs);
90
91 // Copy data
92 //
93 fPtrSolid = rhs.fPtrSolid;
94 delete fDirectTransform3D;
95 fDirectTransform3D = new G4Transform3D(*rhs.fDirectTransform3D);
96 fRebuildPolyhedron = false;
97 delete fpPolyhedron; fpPolyhedron = nullptr;
98
99 return *this;
100 }
101
102 ///////////////////////////////////////////////////////////////////
103 //
104
105 G4GeometryType G4ReflectedSolid::GetEntityType() const
106 {
107 return {"G4ReflectedSolid"};
108 }
109
110 const G4ReflectedSolid* G4ReflectedSolid::GetReflectedSolidPtr() const
111 {
112 return this;
113 }
114
115 G4ReflectedSolid* G4ReflectedSolid::GetReflectedSolidPtr()
116 {
117 return this;
118 }
119
120 G4VSolid* G4ReflectedSolid::GetConstituentMovedSolid() const
121 {
122 return fPtrSolid;
123 }
124
125 /////////////////////////////////////////////////////////////////////////////
126 //
127
128 G4Transform3D G4ReflectedSolid::GetTransform3D() const
129 {
130 return fDirectTransform3D->inverse();
131 }
132
133 G4Transform3D G4ReflectedSolid::GetDirectTransform3D() const
134 {
135 G4Transform3D aTransform = *fDirectTransform3D;
136 return aTransform;
137 }
138
139 void G4ReflectedSolid::SetDirectTransform3D(G4Transform3D& transform)
140 {
141 fDirectTransform3D = &transform;
142 fRebuildPolyhedron = true;
143 }
144
145 //////////////////////////////////////////////////////////////////////////
146 //
147 // Get bounding box
148
149 void G4ReflectedSolid::BoundingLimits(G4ThreeVector& pMin,
150 G4ThreeVector& pMax) const
151 {
152 fPtrSolid->BoundingLimits(pMin,pMax);
153 G4double xmin = pMin.x(), ymin = pMin.y(), zmin = pMin.z();
154 G4double xmax = pMax.x(), ymax = pMax.y(), zmax = pMax.z();
155 G4double xx = fDirectTransform3D->xx();
156 G4double yy = fDirectTransform3D->yy();
157 G4double zz = fDirectTransform3D->zz();
158
159 if (std::abs(xx) == 1 && std::abs(yy) == 1 && std::abs(zz) == 1)
160 {
161 // Special case of reflection in axis and pure translation
162 //
163 if (xx == -1) { G4double tmp = -xmin; xmin = -xmax; xmax = tmp; }
164 if (yy == -1) { G4double tmp = -ymin; ymin = -ymax; ymax = tmp; }
165 if (zz == -1) { G4double tmp = -zmin; zmin = -zmax; zmax = tmp; }
166 xmin += fDirectTransform3D->dx();
167 xmax += fDirectTransform3D->dx();
168 ymin += fDirectTransform3D->dy();
169 ymax += fDirectTransform3D->dy();
170 zmin += fDirectTransform3D->dz();
171 zmax += fDirectTransform3D->dz();
172 }
173 else
174 {
175 // Use additional reflection in Z to set up affine transformation
176 //
177 G4Transform3D transform3D = G4ReflectZ3D()*(*fDirectTransform3D);
178 G4AffineTransform transform(transform3D.getRotation().inverse(),
179 transform3D.getTranslation());
180
181 // Find bounding box
182 //
183 G4VoxelLimits unLimit;
184 fPtrSolid->CalculateExtent(kXAxis,unLimit,transform,xmin,xmax);
185 fPtrSolid->CalculateExtent(kYAxis,unLimit,transform,ymin,ymax);
186 fPtrSolid->CalculateExtent(kZAxis,unLimit,transform,zmin,zmax);
187 }
188
189 pMin.set(xmin,ymin,-zmax);
190 pMax.set(xmax,ymax,-zmin);
191
192 // Check correctness of the bounding box
193 //
194 if (pMin.x() >= pMax.x() || pMin.y() >= pMax.y() || pMin.z() >= pMax.z())
195 {
196 std::ostringstream message;
197 message << "Bad bounding box (min >= max) for solid: "
198 << GetName() << " !"
199 << "\npMin = " << pMin
200 << "\npMax = " << pMax;
201 G4Exception("G4ReflectedSolid::BoundingLimits()", "GeomMgt0001",
202 JustWarning, message);
203 DumpInfo();
204 }
205 }
206
207 //////////////////////////////////////////////////////////////////////////
208 //
209 // Calculate extent under transform and specified limit
210
211 G4bool
212 G4ReflectedSolid::CalculateExtent( const EAxis pAxis,
213 const G4VoxelLimits& pVoxelLimits,
214 const G4AffineTransform& pTransform,
215 G4double& pMin,
216 G4double& pMax ) const
217 {
218 // Separation of transformations. Calculation of the extent is done
219 // in a reflection of the global space. In such way, the voxel is
220 // reflected, but the solid is transformed just by G4AffineTransform.
221 // It allows one to use CalculateExtent() of the solid.
222
223 // Reflect voxel limits in Z
224 //
225 G4VoxelLimits limits;
226 limits.AddLimit(kXAxis, pVoxelLimits.GetMinXExtent(),
227 pVoxelLimits.GetMaxXExtent());
228 limits.AddLimit(kYAxis, pVoxelLimits.GetMinYExtent(),
229 pVoxelLimits.GetMaxYExtent());
230 limits.AddLimit(kZAxis,-pVoxelLimits.GetMaxZExtent(),
231 -pVoxelLimits.GetMinZExtent());
232
233 // Set affine transformation
234 //
235 G4Transform3D transform3D = G4ReflectZ3D()*pTransform*(*fDirectTransform3D);
236 G4AffineTransform transform(transform3D.getRotation().inverse(),
237 transform3D.getTranslation());
238
239 // Find extent
240 //
241 if (!fPtrSolid->CalculateExtent(pAxis, limits, transform, pMin, pMax))
242 {
243 return false;
244 }
245 if (pAxis == kZAxis)
246 {
247 G4double tmp= -pMin; pMin= -pMax; pMax= tmp;
248 }
249
250 return true;
251 }
252
253 //////////////////////////////////////////////////////////////
254 //
255 //
256
257 EInside G4ReflectedSolid::Inside(const G4ThreeVector& p ) const
258 {
259 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
260 return fPtrSolid->Inside(newPoint);
261 }
262
263 //////////////////////////////////////////////////////////////
264 //
265 //
266
267 G4ThreeVector
268 G4ReflectedSolid::SurfaceNormal( const G4ThreeVector& p ) const
269 {
270 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
271 G4Vector3D normal = fPtrSolid->SurfaceNormal(newPoint);
272 return (*fDirectTransform3D)*normal;
273 }
274
275 /////////////////////////////////////////////////////////////
276 //
277 // The same algorithm as in DistanceToIn(p)
278
279 G4double
280 G4ReflectedSolid::DistanceToIn( const G4ThreeVector& p,
281 const G4ThreeVector& v ) const
282 {
283 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
284 G4ThreeVector newDirection = (*fDirectTransform3D)*G4Vector3D(v);
285 return fPtrSolid->DistanceToIn(newPoint,newDirection);
286 }
287
288 ////////////////////////////////////////////////////////
289 //
290 // Approximate nearest distance from the point p to the intersection of
291 // two solids
292
293 G4double
294 G4ReflectedSolid::DistanceToIn( const G4ThreeVector& p ) const
295 {
296 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
297 return fPtrSolid->DistanceToIn(newPoint);
298 }
299
300 //////////////////////////////////////////////////////////
301 //
302 // The same algorithm as DistanceToOut(p)
303
304 G4double
305 G4ReflectedSolid::DistanceToOut( const G4ThreeVector& p,
306 const G4ThreeVector& v,
307 const G4bool calcNorm,
308 G4bool* validNorm,
309 G4ThreeVector* n ) const
310 {
311 G4ThreeVector solNorm;
312
313 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
314 G4ThreeVector newDirection = (*fDirectTransform3D)*G4Vector3D(v);
315
316 G4double dist = fPtrSolid->DistanceToOut(newPoint, newDirection,
317 calcNorm, validNorm, &solNorm);
318 if(calcNorm)
319 {
320 *n = (*fDirectTransform3D)*G4Vector3D(solNorm);
321 }
322 return dist;
323 }
324
325 //////////////////////////////////////////////////////////////
326 //
327 // Inverted algorithm of DistanceToIn(p)
328
329 G4double
330 G4ReflectedSolid::DistanceToOut( const G4ThreeVector& p ) const
331 {
332 G4ThreeVector newPoint = (*fDirectTransform3D)*G4Point3D(p);
333 return fPtrSolid->DistanceToOut(newPoint);
334 }
335
336 //////////////////////////////////////////////////////////////
337 //
338 //
339
340 void
341 G4ReflectedSolid::ComputeDimensions( G4VPVParameterisation*,
342 const G4int,
343 const G4VPhysicalVolume* )
344 {
345 DumpInfo();
346 G4Exception("G4ReflectedSolid::ComputeDimensions()",
347 "GeomMgt0001", FatalException,
348 "Method not applicable in this context!");
349 }
350
351 //////////////////////////////////////////////////////////////
352 //
353 // Return volume
354
355 G4double G4ReflectedSolid::GetCubicVolume()
356 {
357 return fPtrSolid->GetCubicVolume();
358 }
359
360 //////////////////////////////////////////////////////////////
361 //
362 // Return surface area
363
364 G4double G4ReflectedSolid::GetSurfaceArea()
365 {
366 return fPtrSolid->GetSurfaceArea();
367 }
368
369 //////////////////////////////////////////////////////////////
370 //
371 // Return a point (G4ThreeVector) randomly and uniformly selected
372 // on the solid surface
373
374 G4ThreeVector G4ReflectedSolid::GetPointOnSurface() const
375 {
376 G4ThreeVector p = fPtrSolid->GetPointOnSurface();
377 return (*fDirectTransform3D)*G4Point3D(p);
378 }
379
380 //////////////////////////////////////////////////////////////
381 //
382 // Return the number of constituents used for construction
383 // of the solid
384
385 G4int G4ReflectedSolid::GetNumOfConstituents() const
386 {
387 return fPtrSolid->GetNumOfConstituents();
388 }
389
390 //////////////////////////////////////////////////////////////
391 //
392 // Return true if the reflected solid has only planar faces
393
394 G4bool G4ReflectedSolid::IsFaceted() const
395 {
396 return fPtrSolid->IsFaceted();
397 }
398
399 //////////////////////////////////////////////////////////////////////////
400 //
401 // Make a clone of this object
402
403 G4VSolid* G4ReflectedSolid::Clone() const
404 {
405 return new G4ReflectedSolid(*this);
406 }
407
408 //////////////////////////////////////////////////////////////////////////
409 //
410 // Stream object contents to an output stream
411
412 std::ostream& G4ReflectedSolid::StreamInfo(std::ostream& os) const
413 {
414 os << "-----------------------------------------------------------\n"
415 << " *** Dump for Reflected solid - " << GetName() << " ***\n"
416 << " ===================================================\n"
417 << " Solid type: " << GetEntityType() << "\n"
418 << " Parameters of constituent solid: \n"
419 << "===========================================================\n";
420 fPtrSolid->StreamInfo(os);
421 os << "===========================================================\n"
422 << " Transformations: \n"
423 << " Direct transformation - translation : \n"
424 << " " << fDirectTransform3D->getTranslation() << "\n"
425 << " - rotation : \n"
426 << " ";
427 fDirectTransform3D->getRotation().print(os);
428 os << "\n"
429 << "===========================================================\n";
430
431 return os;
432 }
433
434 /////////////////////////////////////////////////
435 //
436 //
437
438 void
439 G4ReflectedSolid::DescribeYourselfTo ( G4VGraphicsScene& scene ) const
440 {
441 scene.AddSolid (*this);
442 }
443
444 ////////////////////////////////////////////////////
445 //
446 //
447
448 G4Polyhedron*
449 G4ReflectedSolid::CreatePolyhedron () const
450 {
451 G4Polyhedron* polyhedron = fPtrSolid->CreatePolyhedron();
452 if (polyhedron != nullptr)
453 {
454 polyhedron->Transform(*fDirectTransform3D);
455 return polyhedron;
456 }
457 else
458 {
459 std::ostringstream message;
460 message << "Solid - " << GetName()
461 << " - original solid has no" << G4endl
462 << "corresponding polyhedron. Returning NULL!";
463 G4Exception("G4ReflectedSolid::CreatePolyhedron()",
464 "GeomMgt1001", JustWarning, message);
465 return nullptr;
466 }
467 }
468
469 /////////////////////////////////////////////////////////
470 //
471 //
472
473 G4Polyhedron*
474 G4ReflectedSolid::GetPolyhedron () const
475 {
476 if ((fpPolyhedron == nullptr) || fRebuildPolyhedron ||
477 (fpPolyhedron->GetNumberOfRotationStepsAtTimeOfCreation() !=
478 fpPolyhedron->GetNumberOfRotationSteps()))
479 {
480 fpPolyhedron = CreatePolyhedron();
481 fRebuildPolyhedron = false;
482 }
483 return fpPolyhedron;
484 }
485