| Geant4 Cross Reference |
1 // 1 //
2 // ******************************************* 2 // ********************************************************************
3 // * License and Disclaimer 3 // * License and Disclaimer *
4 // * 4 // * *
5 // * The Geant4 software is copyright of th 5 // * The Geant4 software is copyright of the Copyright Holders of *
6 // * the Geant4 Collaboration. It is provided 6 // * the Geant4 Collaboration. It is provided under the terms and *
7 // * conditions of the Geant4 Software License 7 // * conditions of the Geant4 Software License, included in the file *
8 // * LICENSE and available at http://cern.ch/ 8 // * LICENSE and available at http://cern.ch/geant4/license . These *
9 // * include a list of copyright holders. 9 // * include a list of copyright holders. *
10 // * 10 // * *
11 // * Neither the authors of this software syst 11 // * Neither the authors of this software system, nor their employing *
12 // * institutes,nor the agencies providing fin 12 // * institutes,nor the agencies providing financial support for this *
13 // * work make any representation or warran 13 // * work make any representation or warranty, express or implied, *
14 // * regarding this software system or assum 14 // * regarding this software system or assume any liability for its *
15 // * use. Please see the license in the file 15 // * use. Please see the license in the file LICENSE and URL above *
16 // * for the full disclaimer and the limitatio 16 // * for the full disclaimer and the limitation of liability. *
17 // * 17 // * *
18 // * This code implementation is the result 18 // * This code implementation is the result of the scientific and *
19 // * technical work of the GEANT4 collaboratio 19 // * technical work of the GEANT4 collaboration. *
20 // * By using, copying, modifying or distri 20 // * By using, copying, modifying or distributing the software (or *
21 // * any work based on the software) you ag 21 // * any work based on the software) you agree to acknowledge its *
22 // * use in resulting scientific publicati 22 // * use in resulting scientific publications, and indicate your *
23 // * acceptance of all terms of the Geant4 Sof 23 // * acceptance of all terms of the Geant4 Software license. *
24 // ******************************************* 24 // ********************************************************************
25 // 25 //
26 // Implementation of G4UGenericTrap wrapper cl <<
27 // 26 //
28 // 30.10.13 G.Cosmo, CERN << 27 // $Id:$
>> 28 //
>> 29 //
>> 30 // Implementation of G4UGenericTrap wrapper class
29 // ------------------------------------------- 31 // --------------------------------------------------------------------
30 32
31 #include "G4GenericTrap.hh" 33 #include "G4GenericTrap.hh"
32 #include "G4UGenericTrap.hh" 34 #include "G4UGenericTrap.hh"
33 35
34 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G 36 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G4GEOM_USE_PARTIAL_USOLIDS) )
35 37
36 #include "G4AffineTransform.hh" 38 #include "G4AffineTransform.hh"
37 #include "G4VPVParameterisation.hh" 39 #include "G4VPVParameterisation.hh"
38 #include "G4BoundingEnvelope.hh" 40 #include "G4BoundingEnvelope.hh"
39 41
40 #include "G4Polyhedron.hh" 42 #include "G4Polyhedron.hh"
>> 43 #include "G4PolyhedronArbitrary.hh"
41 44
42 using namespace CLHEP; 45 using namespace CLHEP;
43 46
44 ////////////////////////////////////////////// 47 ////////////////////////////////////////////////////////////////////////
45 // 48 //
46 // Constructor (generic parameters) 49 // Constructor (generic parameters)
47 // 50 //
48 G4UGenericTrap::G4UGenericTrap(const G4String& 51 G4UGenericTrap::G4UGenericTrap(const G4String& name, G4double halfZ,
49 const std::vect 52 const std::vector<G4TwoVector>& vertices)
50 : Base_t(name), fVisSubdivisions(0) 53 : Base_t(name), fVisSubdivisions(0)
51 { 54 {
52 SetZHalfLength(halfZ); 55 SetZHalfLength(halfZ);
53 Initialise(vertices); 56 Initialise(vertices);
54 } 57 }
55 58
56 59
57 ////////////////////////////////////////////// 60 ////////////////////////////////////////////////////////////////////////
58 // 61 //
59 // Fake default constructor - sets only member 62 // Fake default constructor - sets only member data and allocates memory
60 // for usage restri 63 // for usage restricted to object persistency.
61 // 64 //
62 G4UGenericTrap::G4UGenericTrap(__void__& a) 65 G4UGenericTrap::G4UGenericTrap(__void__& a)
63 : Base_t(a), fVisSubdivisions(0) << 66 : Base_t(a), fVisSubdivisions(0), fVertices()
64 { 67 {
65 } 68 }
66 69
67 70
68 ////////////////////////////////////////////// 71 //////////////////////////////////////////////////////////////////////////
69 // 72 //
70 // Destructor 73 // Destructor
71 // 74 //
72 G4UGenericTrap::~G4UGenericTrap() = default; << 75 G4UGenericTrap::~G4UGenericTrap()
>> 76 {
>> 77 }
73 78
74 79
75 ////////////////////////////////////////////// 80 //////////////////////////////////////////////////////////////////////////
76 // 81 //
77 // Copy constructor 82 // Copy constructor
78 // 83 //
79 G4UGenericTrap::G4UGenericTrap(const G4UGeneri << 84 G4UGenericTrap::G4UGenericTrap(const G4UGenericTrap &source)
80 : Base_t(source), fVisSubdivisions(source.fV 85 : Base_t(source), fVisSubdivisions(source.fVisSubdivisions),
81 fVertices(source.fVertices) 86 fVertices(source.fVertices)
>> 87
82 { 88 {
83 } 89 }
84 90
85 91
86 ////////////////////////////////////////////// 92 //////////////////////////////////////////////////////////////////////////
87 // 93 //
88 // Assignment operator 94 // Assignment operator
89 // 95 //
90 G4UGenericTrap& 96 G4UGenericTrap&
91 G4UGenericTrap::operator=(const G4UGenericTrap << 97 G4UGenericTrap::operator=(const G4UGenericTrap &source)
92 { 98 {
93 if (this == &source) return *this; 99 if (this == &source) return *this;
94 100
95 Base_t::operator=( source ); 101 Base_t::operator=( source );
96 fVertices = source.fVertices; 102 fVertices = source.fVertices;
97 fVisSubdivisions = source.fVisSubdivisions; 103 fVisSubdivisions = source.fVisSubdivisions;
98 104
99 return *this; 105 return *this;
100 } 106 }
101 107
102 ////////////////////////////////////////////// 108 //////////////////////////////////////////////////////////////////////////
103 // 109 //
104 // Accessors & modifiers 110 // Accessors & modifiers
105 // 111 //
106 G4double G4UGenericTrap::GetZHalfLength() cons 112 G4double G4UGenericTrap::GetZHalfLength() const
107 { 113 {
108 return GetDZ(); 114 return GetDZ();
109 } 115 }
110 G4int G4UGenericTrap::GetNofVertices() const 116 G4int G4UGenericTrap::GetNofVertices() const
111 { 117 {
112 return fVertices.size(); 118 return fVertices.size();
113 } 119 }
114 G4TwoVector G4UGenericTrap::GetVertex(G4int in 120 G4TwoVector G4UGenericTrap::GetVertex(G4int index) const
115 { 121 {
116 return { GetVerticesX()[index], GetVerticesY << 122 return G4TwoVector(GetVerticesX()[index], GetVerticesY()[index]);
117 } 123 }
118 const std::vector<G4TwoVector>& G4UGenericTrap 124 const std::vector<G4TwoVector>& G4UGenericTrap::GetVertices() const
119 { 125 {
120 return fVertices; 126 return fVertices;
121 } 127 }
122 G4double G4UGenericTrap::GetTwistAngle(G4int i 128 G4double G4UGenericTrap::GetTwistAngle(G4int index) const
123 { 129 {
124 return GetTwist(index); 130 return GetTwist(index);
125 } 131 }
126 G4bool G4UGenericTrap::IsTwisted() const 132 G4bool G4UGenericTrap::IsTwisted() const
127 { 133 {
128 return !IsPlanar(); 134 return !IsPlanar();
129 } 135 }
130 G4int G4UGenericTrap::GetVisSubdivisions() con 136 G4int G4UGenericTrap::GetVisSubdivisions() const
131 { 137 {
132 return fVisSubdivisions; 138 return fVisSubdivisions;
133 } 139 }
134 140
135 void G4UGenericTrap::SetVisSubdivisions(G4int 141 void G4UGenericTrap::SetVisSubdivisions(G4int subdiv)
136 { 142 {
137 fVisSubdivisions = subdiv; 143 fVisSubdivisions = subdiv;
138 } 144 }
139 145
140 void G4UGenericTrap::SetZHalfLength(G4double h 146 void G4UGenericTrap::SetZHalfLength(G4double halfZ)
141 { 147 {
142 SetDZ(halfZ); 148 SetDZ(halfZ);
143 } 149 }
144 150
145 void G4UGenericTrap::Initialise(const std::vec 151 void G4UGenericTrap::Initialise(const std::vector<G4TwoVector>& v)
146 { 152 {
147 G4double verticesx[8], verticesy[8]; 153 G4double verticesx[8], verticesy[8];
148 for (G4int i=0; i<8; ++i) 154 for (G4int i=0; i<8; ++i)
149 { 155 {
150 fVertices.push_back(v[i]); 156 fVertices.push_back(v[i]);
151 verticesx[i] = v[i].x(); 157 verticesx[i] = v[i].x();
152 verticesy[i] = v[i].y(); 158 verticesy[i] = v[i].y();
153 } 159 }
154 Initialize(verticesx, verticesy, GetZHalfLen 160 Initialize(verticesx, verticesy, GetZHalfLength());
155 } 161 }
156 162
157 ////////////////////////////////////////////// 163 /////////////////////////////////////////////////////////////////////////
158 // 164 //
159 // Get bounding box 165 // Get bounding box
160 166
161 void G4UGenericTrap::BoundingLimits(G4ThreeVec 167 void G4UGenericTrap::BoundingLimits(G4ThreeVector& pMin,
162 G4ThreeVec 168 G4ThreeVector& pMax) const
163 { 169 {
164 U3Vector vmin, vmax; 170 U3Vector vmin, vmax;
165 Extent(vmin,vmax); 171 Extent(vmin,vmax);
166 pMin.set(vmin.x(),vmin.y(),vmin.z()); 172 pMin.set(vmin.x(),vmin.y(),vmin.z());
167 pMax.set(vmax.x(),vmax.y(),vmax.z()); 173 pMax.set(vmax.x(),vmax.y(),vmax.z());
168 174
169 // Check correctness of the bounding box 175 // Check correctness of the bounding box
170 // 176 //
171 if (pMin.x() >= pMax.x() || pMin.y() >= pMax 177 if (pMin.x() >= pMax.x() || pMin.y() >= pMax.y() || pMin.z() >= pMax.z())
172 { 178 {
173 std::ostringstream message; 179 std::ostringstream message;
174 message << "Bad bounding box (min >= max) 180 message << "Bad bounding box (min >= max) for solid: "
175 << GetName() << " !" 181 << GetName() << " !"
176 << "\npMin = " << pMin 182 << "\npMin = " << pMin
177 << "\npMax = " << pMax; 183 << "\npMax = " << pMax;
178 G4Exception("G4UGenericTrap::BoundingLimit 184 G4Exception("G4UGenericTrap::BoundingLimits()", "GeomMgt0001",
179 JustWarning, message); 185 JustWarning, message);
180 StreamInfo(G4cout); 186 StreamInfo(G4cout);
181 } 187 }
182 } 188 }
183 189
184 ////////////////////////////////////////////// 190 //////////////////////////////////////////////////////////////////////////
185 // 191 //
186 // Calculate extent under transform and specif 192 // Calculate extent under transform and specified limit
187 193
188 G4bool 194 G4bool
189 G4UGenericTrap::CalculateExtent(const EAxis pA 195 G4UGenericTrap::CalculateExtent(const EAxis pAxis,
190 const G4VoxelL 196 const G4VoxelLimits& pVoxelLimit,
191 const G4Affine 197 const G4AffineTransform& pTransform,
192 G4double 198 G4double& pMin, G4double& pMax) const
193 { 199 {
194 G4ThreeVector bmin, bmax; 200 G4ThreeVector bmin, bmax;
195 G4bool exist; 201 G4bool exist;
196 202
197 // Check bounding box (bbox) 203 // Check bounding box (bbox)
198 // 204 //
199 BoundingLimits(bmin,bmax); 205 BoundingLimits(bmin,bmax);
200 G4BoundingEnvelope bbox(bmin,bmax); 206 G4BoundingEnvelope bbox(bmin,bmax);
201 #ifdef G4BBOX_EXTENT 207 #ifdef G4BBOX_EXTENT
202 return bbox.CalculateExtent(pAxis,pVoxelLimi << 208 if (true) return bbox.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
203 #endif 209 #endif
204 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox 210 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVoxelLimit,pTransform,pMin,pMax))
205 { 211 {
206 return exist = pMin < pMax; << 212 return exist = (pMin < pMax) ? true : false;
207 } 213 }
208 214
209 // Set bounding envelope (benv) and calculat 215 // Set bounding envelope (benv) and calculate extent
210 // 216 //
211 // To build the bounding envelope with plane 217 // To build the bounding envelope with plane faces each side face of
212 // the trapezoid is subdivided in triangles. 218 // the trapezoid is subdivided in triangles. Subdivision is done by
213 // duplication of vertices in the bases in a 219 // duplication of vertices in the bases in a way that the envelope be
214 // a convex polyhedron (some faces of the en 220 // a convex polyhedron (some faces of the envelope can be degenerate)
215 // 221 //
216 G4double dz = GetZHalfLength(); 222 G4double dz = GetZHalfLength();
217 G4ThreeVectorList baseA(8), baseB(8); 223 G4ThreeVectorList baseA(8), baseB(8);
218 for (G4int i=0; i<4; ++i) 224 for (G4int i=0; i<4; ++i)
219 { 225 {
220 G4TwoVector va = GetVertex(i); 226 G4TwoVector va = GetVertex(i);
221 G4TwoVector vb = GetVertex(i+4); 227 G4TwoVector vb = GetVertex(i+4);
222 baseA[2*i].set(va.x(),va.y(),-dz); 228 baseA[2*i].set(va.x(),va.y(),-dz);
223 baseB[2*i].set(vb.x(),vb.y(), dz); 229 baseB[2*i].set(vb.x(),vb.y(), dz);
224 } 230 }
225 for (G4int i=0; i<4; ++i) 231 for (G4int i=0; i<4; ++i)
226 { 232 {
227 G4int k1=2*i, k2=(2*i+2)%8; 233 G4int k1=2*i, k2=(2*i+2)%8;
228 G4double ax = (baseA[k2].x()-baseA[k1].x() 234 G4double ax = (baseA[k2].x()-baseA[k1].x());
229 G4double ay = (baseA[k2].y()-baseA[k1].y() 235 G4double ay = (baseA[k2].y()-baseA[k1].y());
230 G4double bx = (baseB[k2].x()-baseB[k1].x() 236 G4double bx = (baseB[k2].x()-baseB[k1].x());
231 G4double by = (baseB[k2].y()-baseB[k1].y() 237 G4double by = (baseB[k2].y()-baseB[k1].y());
232 G4double znorm = ax*by - ay*bx; 238 G4double znorm = ax*by - ay*bx;
233 baseA[k1+1] = (znorm < 0.0) ? baseA[k2] : 239 baseA[k1+1] = (znorm < 0.0) ? baseA[k2] : baseA[k1];
234 baseB[k1+1] = (znorm < 0.0) ? baseB[k1] : 240 baseB[k1+1] = (znorm < 0.0) ? baseB[k1] : baseB[k2];
235 } 241 }
236 242
237 std::vector<const G4ThreeVectorList *> polyg 243 std::vector<const G4ThreeVectorList *> polygons(2);
238 polygons[0] = &baseA; 244 polygons[0] = &baseA;
239 polygons[1] = &baseB; 245 polygons[1] = &baseB;
240 246
241 G4BoundingEnvelope benv(bmin,bmax,polygons); 247 G4BoundingEnvelope benv(bmin,bmax,polygons);
242 exist = benv.CalculateExtent(pAxis,pVoxelLim 248 exist = benv.CalculateExtent(pAxis,pVoxelLimit,pTransform,pMin,pMax);
243 return exist; 249 return exist;
244 } 250 }
245 251
246 ////////////////////////////////////////////// 252 //////////////////////////////////////////////////////////////////////////
247 // 253 //
248 // CreatePolyhedron() 254 // CreatePolyhedron()
249 // 255 //
250 G4Polyhedron* G4UGenericTrap::CreatePolyhedron 256 G4Polyhedron* G4UGenericTrap::CreatePolyhedron() const
251 { 257 {
252 // Approximation of Twisted Side 258 // Approximation of Twisted Side
253 // Construct extra Points, if Twisted Side 259 // Construct extra Points, if Twisted Side
254 // 260 //
255 G4Polyhedron* polyhedron; << 261 G4PolyhedronArbitrary* polyhedron;
256 G4int nVertices, nFacets; << 262 size_t nVertices, nFacets;
257 G4double fDz = GetZHalfLength(); 263 G4double fDz = GetZHalfLength();
258 264
259 G4int subdivisions = 0; << 265 G4int subdivisions=0;
260 if (IsTwisted()) << 266 G4int i;
>> 267 if(IsTwisted())
261 { 268 {
262 if (GetVisSubdivisions() != 0) << 269 if ( GetVisSubdivisions()!= 0 )
263 { 270 {
264 subdivisions = GetVisSubdivisions(); << 271 subdivisions=GetVisSubdivisions();
265 } 272 }
266 else 273 else
267 { 274 {
268 // Estimation of Number of Subdivisions 275 // Estimation of Number of Subdivisions for smooth visualisation
269 // 276 //
270 G4double maxTwist = 0.; << 277 G4double maxTwist=0.;
271 for(G4int i = 0; i < 4; ++i) << 278 for(i=0; i<4; i++)
272 { 279 {
273 if (GetTwistAngle(i) > maxTwist) { max << 280 if(GetTwistAngle(i)>maxTwist) { maxTwist=GetTwistAngle(i); }
274 } 281 }
275 282
276 // Computes bounding vectors for the sha 283 // Computes bounding vectors for the shape
277 // 284 //
278 G4double Dx, Dy; << 285 G4double Dx,Dy;
279 G4ThreeVector minVec, maxVec; 286 G4ThreeVector minVec, maxVec;
280 BoundingLimits(minVec, maxVec); << 287 BoundingLimits(minVec,maxVec);
281 Dx = 0.5*(maxVec.x() - minVec.y()); << 288 Dx = 0.5*(maxVec.x()- minVec.y());
282 Dy = 0.5*(maxVec.y() - minVec.y()); << 289 Dy = 0.5*(maxVec.y()- minVec.y());
283 if (Dy > Dx) { Dx = Dy; } << 290 if (Dy > Dx) { Dx=Dy; }
284 << 291
285 subdivisions = 8*G4int(maxTwist/(Dx*Dx*D << 292 subdivisions=8*G4int(maxTwist/(Dx*Dx*Dx)*fDz);
286 if (subdivisions < 4) { subdivisions = << 293 if (subdivisions<4) { subdivisions=4; }
287 if (subdivisions > 30) { subdivisions = << 294 if (subdivisions>30) { subdivisions=30; }
288 } 295 }
289 } 296 }
290 G4int sub4 = 4*subdivisions; << 297 G4int sub4=4*subdivisions;
291 nVertices = 8 + subdivisions*4; << 298 nVertices = 8+subdivisions*4;
292 nFacets = 6 + subdivisions*4; << 299 nFacets = 6+subdivisions*4;
293 G4double cf = 1./(subdivisions + 1); << 300 G4double cf=1./(subdivisions+1);
294 polyhedron = new G4Polyhedron(nVertices, nFa << 301 polyhedron = new G4PolyhedronArbitrary (nVertices, nFacets);
295 302
296 // Set vertices << 303 // Add Vertex
297 // 304 //
298 G4int icur = 0; << 305 for (i=0;i<4;i++)
299 for (G4int i = 0; i < 4; ++i) <<
300 { 306 {
301 G4ThreeVector v(GetVertex(i).x(),GetVertex << 307 polyhedron->AddVertex(G4ThreeVector(GetVertex(i).x(),
302 polyhedron->SetVertex(++icur, v); << 308 GetVertex(i).y(),-fDz));
303 } 309 }
304 for (G4int i = 0; i < subdivisions; ++i) << 310 for( i=0;i<subdivisions;i++)
305 { 311 {
306 for (G4int j = 0; j < 4; ++j) << 312 for(G4int j=0;j<4;j++)
307 { 313 {
308 G4TwoVector u = GetVertex(j)+cf*(i+1)*( << 314 G4TwoVector u=GetVertex(j)+cf*(i+1)*( GetVertex(j+4)-GetVertex(j));
309 G4ThreeVector v(u.x(),u.y(),-fDz+cf*2*fD << 315 polyhedron->AddVertex(G4ThreeVector(u.x(),u.y(),-fDz+cf*2*fDz*(i+1)));
310 polyhedron->SetVertex(++icur, v); << 316 }
311 } <<
312 } 317 }
313 for (G4int i = 4; i < 8; ++i) << 318 for (i=4;i<8;i++)
314 { 319 {
315 G4ThreeVector v(GetVertex(i).x(),GetVertex << 320 polyhedron->AddVertex(G4ThreeVector(GetVertex(i).x(),
316 polyhedron->SetVertex(++icur, v); << 321 GetVertex(i).y(),fDz));
317 } 322 }
318 323
319 // Set facets << 324 // Add Facets
320 // 325 //
321 icur = 0; << 326 polyhedron->AddFacet(1,4,3,2); //Z-plane
322 polyhedron->SetFacet(++icur, 1, 4, 3, 2); // << 327 for (i=0;i<subdivisions+1;i++)
323 for (G4int i = 0; i < subdivisions + 1; ++i) <<
324 { 328 {
325 G4int is = i*4; << 329 G4int is=i*4;
326 polyhedron->SetFacet(++icur, 5+is, 8+is, 4 << 330 polyhedron->AddFacet(5+is,8+is,4+is,1+is);
327 polyhedron->SetFacet(++icur, 8+is, 7+is, 3 << 331 polyhedron->AddFacet(8+is,7+is,3+is,4+is);
328 polyhedron->SetFacet(++icur, 7+is, 6+is, 2 << 332 polyhedron->AddFacet(7+is,6+is,2+is,3+is);
329 polyhedron->SetFacet(++icur, 6+is, 5+is, 1 << 333 polyhedron->AddFacet(6+is,5+is,1+is,2+is);
330 } 334 }
331 polyhedron->SetFacet(++icur, 5+sub4, 6+sub4, << 335 polyhedron->AddFacet(5+sub4,6+sub4,7+sub4,8+sub4); //Z-plane
332 336
333 polyhedron->SetReferences(); 337 polyhedron->SetReferences();
334 polyhedron->InvertFacets(); 338 polyhedron->InvertFacets();
335 339
336 return polyhedron; << 340 return (G4Polyhedron*) polyhedron;
337 } 341 }
338 342
339 #endif // G4GEOM_USE_USOLIDS 343 #endif // G4GEOM_USE_USOLIDS
340 344