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1 // 1 2 // ******************************************* 3 // * License and Disclaimer 4 // * 5 // * The Geant4 software is copyright of th 6 // * the Geant4 Collaboration. It is provided 7 // * conditions of the Geant4 Software License 8 // * LICENSE and available at http://cern.ch/ 9 // * include a list of copyright holders. 10 // * 11 // * Neither the authors of this software syst 12 // * institutes,nor the agencies providing fin 13 // * work make any representation or warran 14 // * regarding this software system or assum 15 // * use. Please see the license in the file 16 // * for the full disclaimer and the limitatio 17 // * 18 // * This code implementation is the result 19 // * technical work of the GEANT4 collaboratio 20 // * By using, copying, modifying or distri 21 // * any work based on the software) you ag 22 // * use in resulting scientific publicati 23 // * acceptance of all terms of the Geant4 Sof 24 // ******************************************* 25 // 26 // Implementation of G4UExtrudedSolid wrapper 27 // 28 // 17.11.17 G.Cosmo, CERN 29 // ------------------------------------------- 30 31 #include "G4ExtrudedSolid.hh" 32 #include "G4UExtrudedSolid.hh" 33 34 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G 35 36 #include "G4GeomTools.hh" 37 #include "G4AffineTransform.hh" 38 #include "G4BoundingEnvelope.hh" 39 40 ////////////////////////////////////////////// 41 // 42 // Constructors 43 // 44 G4UExtrudedSolid::G4UExtrudedSolid(const G4Str 45 const std:: 46 const std:: 47 : Base_t(name) // General constructor 48 { 49 unsigned int nVertices = polygon.size(); 50 unsigned int nSections = zsections.size(); 51 52 auto vertices = new vecgeom::XtruVertex2[nVe 53 auto sections = new vecgeom::XtruSection[nSe 54 55 for (unsigned int i = 0; i < nVertices; ++i) 56 { 57 vertices[i].x = polygon[i].x(); 58 vertices[i].y = polygon[i].y(); 59 } 60 for (unsigned int i = 0; i < nSections; ++i) 61 { 62 sections[i].fOrigin.Set(zsections[i].fOffs 63 zsections[i].fOffs 64 zsections[i].fZ); 65 sections[i].fScale = zsections[i].fScale; 66 } 67 Base_t::Initialize(nVertices, vertices, nSec 68 delete[] vertices; 69 delete[] sections; 70 } 71 72 73 G4UExtrudedSolid::G4UExtrudedSolid(const G4Str 74 const std:: 75 G4double 76 const G4Two 77 const G4Two 78 : Base_t(name) // Special constructor for 2 79 { 80 unsigned int nVertices = polygon.size(); 81 unsigned int nSections = 2; 82 83 auto vertices = new vecgeom::XtruVertex2[nVe 84 auto sections = new vecgeom::XtruSection[nSe 85 86 for (unsigned int i = 0; i < nVertices; ++i) 87 { 88 vertices[i].x = polygon[i].x(); 89 vertices[i].y = polygon[i].y(); 90 } 91 sections[0].fOrigin.Set(off1.x(), off1.y(), 92 sections[0].fScale = scale1; 93 sections[1].fOrigin.Set(off2.x(), off2.y(), 94 sections[1].fScale = scale2; 95 Base_t::Initialize(nVertices, vertices, nSec 96 delete[] vertices; 97 delete[] sections; 98 } 99 100 ////////////////////////////////////////////// 101 // 102 // Fake default constructor - sets only member 103 // for usage restri 104 // 105 G4UExtrudedSolid::G4UExtrudedSolid(__void__& a 106 : Base_t(a) 107 { 108 } 109 110 111 ////////////////////////////////////////////// 112 // 113 // Destructor 114 // 115 G4UExtrudedSolid::~G4UExtrudedSolid() = defaul 116 117 118 ////////////////////////////////////////////// 119 // 120 // Copy constructor 121 // 122 G4UExtrudedSolid::G4UExtrudedSolid(const G4UEx 123 : Base_t(source) 124 { 125 } 126 127 128 ////////////////////////////////////////////// 129 // 130 // Assignment operator 131 // 132 G4UExtrudedSolid& 133 G4UExtrudedSolid::operator=(const G4UExtrudedS 134 { 135 if (this == &source) return *this; 136 137 Base_t::operator=( source ); 138 139 return *this; 140 } 141 142 143 ////////////////////////////////////////////// 144 // 145 // Accessors 146 147 G4int G4UExtrudedSolid::GetNofVertices() const 148 { 149 return Base_t::GetNVertices(); 150 } 151 152 G4TwoVector G4UExtrudedSolid::GetVertex(G4int 153 { 154 G4double xx, yy; 155 Base_t::GetVertex(i, xx, yy); 156 return { xx, yy }; 157 } 158 159 std::vector<G4TwoVector> G4UExtrudedSolid::Get 160 { 161 std::vector<G4TwoVector> pol; 162 for (unsigned int i = 0; i < Base_t::GetNVer 163 { 164 pol.push_back(GetVertex(i)); 165 } 166 return pol; 167 } 168 169 G4int G4UExtrudedSolid::GetNofZSections() cons 170 { 171 return Base_t::GetNSections(); 172 } 173 174 G4UExtrudedSolid::ZSection G4UExtrudedSolid::G 175 { 176 vecgeom::XtruSection sect = Base_t::GetSecti 177 return { sect.fOrigin[2], 178 G4TwoVector(sect.fOrigin[0], sect.f 179 sect.fScale }; 180 } 181 182 std::vector<G4UExtrudedSolid::ZSection> G4UExt 183 { 184 std::vector<G4UExtrudedSolid::ZSection> sect 185 for (unsigned int i = 0; i < Base_t::GetNSec 186 { 187 vecgeom::XtruSection sect = Base_t::GetSec 188 sections.emplace_back(sect.fOrigin[2], 189 G4TwoVector(sect.fOr 190 sect.fScale); 191 } 192 return sections; 193 } 194 195 196 ////////////////////////////////////////////// 197 // 198 // Get bounding box 199 200 void G4UExtrudedSolid::BoundingLimits(G4ThreeV 201 G4ThreeV 202 { 203 static G4bool checkBBox = true; 204 205 G4double xmin0 = kInfinity, xmax0 = -kInfini 206 G4double ymin0 = kInfinity, ymax0 = -kInfini 207 208 for (G4int i=0; i<GetNofVertices(); ++i) 209 { 210 G4TwoVector vertex = GetVertex(i); 211 G4double x = vertex.x(); 212 if (x < xmin0) xmin0 = x; 213 if (x > xmax0) xmax0 = x; 214 G4double y = vertex.y(); 215 if (y < ymin0) ymin0 = y; 216 if (y > ymax0) ymax0 = y; 217 } 218 219 G4double xmin = kInfinity, xmax = -kInfinity 220 G4double ymin = kInfinity, ymax = -kInfinity 221 222 G4int nsect = GetNofZSections(); 223 for (G4int i=0; i<nsect; ++i) 224 { 225 ZSection zsect = GetZSection(i); 226 G4double dx = zsect.fOffset.x(); 227 G4double dy = zsect.fOffset.y(); 228 G4double scale = zsect.fScale; 229 xmin = std::min(xmin,xmin0*scale+dx); 230 xmax = std::max(xmax,xmax0*scale+dx); 231 ymin = std::min(ymin,ymin0*scale+dy); 232 ymax = std::max(ymax,ymax0*scale+dy); 233 } 234 235 G4double zmin = GetZSection(0).fZ; 236 G4double zmax = GetZSection(nsect-1).fZ; 237 238 pMin.set(xmin,ymin,zmin); 239 pMax.set(xmax,ymax,zmax); 240 241 // Check correctness of the bounding box 242 // 243 if (pMin.x() >= pMax.x() || pMin.y() >= pMax 244 { 245 std::ostringstream message; 246 message << "Bad bounding box (min >= max) 247 << GetName() << " !" 248 << "\npMin = " << pMin 249 << "\npMax = " << pMax; 250 G4Exception("G4UExtrudedSolid::BoundingLim 251 JustWarning, message); 252 StreamInfo(G4cout); 253 } 254 255 // Check consistency of bounding boxes 256 // 257 if (checkBBox) 258 { 259 U3Vector vmin, vmax; 260 Base_t::Extent(vmin,vmax); 261 if (std::abs(pMin.x()-vmin.x()) > kCarTole 262 std::abs(pMin.y()-vmin.y()) > kCarTole 263 std::abs(pMin.z()-vmin.z()) > kCarTole 264 std::abs(pMax.x()-vmax.x()) > kCarTole 265 std::abs(pMax.y()-vmax.y()) > kCarTole 266 std::abs(pMax.z()-vmax.z()) > kCarTole 267 { 268 std::ostringstream message; 269 message << "Inconsistency in bounding bo 270 << GetName() << " !" 271 << "\nBBox min: wrapper = " << p 272 << "\nBBox max: wrapper = " << p 273 G4Exception("G4UExtrudedSolid::BoundingL 274 JustWarning, message); 275 checkBBox = false; 276 } 277 } 278 } 279 280 281 ////////////////////////////////////////////// 282 // 283 // Calculate extent under transform and specif 284 285 G4bool 286 G4UExtrudedSolid::CalculateExtent(const EAxis 287 const G4Voxe 288 const G4Affi 289 G4doub 290 { 291 G4ThreeVector bmin, bmax; 292 G4bool exist; 293 294 // Check bounding box (bbox) 295 // 296 BoundingLimits(bmin,bmax); 297 G4BoundingEnvelope bbox(bmin,bmax); 298 #ifdef G4BBOX_EXTENT 299 return bbox.CalculateExtent(pAxis,pVoxelLimi 300 #endif 301 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox 302 { 303 return exist = pMin < pMax; 304 } 305 306 // To find the extent, the base polygon is s 307 // The extent is calculated as cumulative ex 308 // formed by extrusion of the triangles 309 // 310 G4TwoVectorList basePolygon = GetPolygon(); 311 G4TwoVectorList triangles; 312 G4double eminlim = pVoxelLimit.GetMinExtent( 313 G4double emaxlim = pVoxelLimit.GetMaxExtent( 314 315 // triangulate the base polygon 316 if (!G4GeomTools::TriangulatePolygon(basePol 317 { 318 std::ostringstream message; 319 message << "Triangulation of the base poly 320 << GetName() << " !" 321 << "\nExtent has been calculated u 322 G4Exception("G4UExtrudedSolid::CalculateEx 323 "GeomMgt1002",JustWarning,mess 324 return bbox.CalculateExtent(pAxis,pVoxelLi 325 } 326 327 // allocate vector lists 328 G4int nsect = GetNofZSections(); 329 std::vector<const G4ThreeVectorList *> polyg 330 polygons.resize(nsect); 331 for (G4int k=0; k<nsect; ++k) { polygons[k] 332 333 // main loop along triangles 334 pMin = kInfinity; 335 pMax = -kInfinity; 336 G4int ntria = triangles.size()/3; 337 for (G4int i=0; i<ntria; ++i) 338 { 339 G4int i3 = i*3; 340 for (G4int k=0; k<nsect; ++k) // extrude t 341 { 342 ZSection zsect = GetZSection(k); 343 G4double z = zsect.fZ; 344 G4double dx = zsect.fOffset.x(); 345 G4double dy = zsect.fOffset.y(); 346 G4double scale = zsect.fScale; 347 348 auto ptr = const_cast<G4ThreeVectorList* 349 auto iter = ptr->begin(); 350 G4double x0 = triangles[i3+0].x()*scale+ 351 G4double y0 = triangles[i3+0].y()*scale+ 352 iter->set(x0,y0,z); 353 iter++; 354 G4double x1 = triangles[i3+1].x()*scale+ 355 G4double y1 = triangles[i3+1].y()*scale+ 356 iter->set(x1,y1,z); 357 iter++; 358 G4double x2 = triangles[i3+2].x()*scale+ 359 G4double y2 = triangles[i3+2].y()*scale+ 360 iter->set(x2,y2,z); 361 } 362 363 // set sub-envelope and adjust extent 364 G4double emin,emax; 365 G4BoundingEnvelope benv(polygons); 366 if (!benv.CalculateExtent(pAxis,pVoxelLimi 367 if (emin < pMin) pMin = emin; 368 if (emax > pMax) pMax = emax; 369 if (eminlim > pMin && emaxlim < pMax) brea 370 } 371 // free memory 372 for (G4int k=0; k<nsect; ++k) { delete polyg 373 return (pMin < pMax); 374 } 375 376 377 ////////////////////////////////////////////// 378 // 379 // CreatePolyhedron() 380 // 381 G4Polyhedron* G4UExtrudedSolid::CreatePolyhedr 382 { 383 unsigned int nFacets = Base_t::GetStruct().f 384 unsigned int nVertices = Base_t::GetStruct() 385 386 auto polyhedron = new G4Polyhedron(nVertices 387 388 // Copy vertices 389 for (unsigned int i = 0; i < nVertices; ++i) 390 { 391 U3Vector v = Base_t::GetStruct().fTslHelpe 392 polyhedron->SetVertex(i+1, G4ThreeVector(v 393 } 394 395 // Copy facets 396 for (unsigned int i = 0; i < nFacets; ++i) 397 { 398 // Facets are only triangular in VecGeom 399 G4int i1 = Base_t::GetStruct().fTslHelper. 400 G4int i2 = Base_t::GetStruct().fTslHelper. 401 G4int i3 = Base_t::GetStruct().fTslHelper. 402 polyhedron->SetFacet(i+1, i1, i2, i3); 403 } 404 polyhedron->SetReferences(); 405 406 return polyhedron; 407 } 408 409 #endif // G4GEOM_USE_USOLIDS 410