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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 for G4UTrap wrapper class 27 // 28 // 13.09.13 G.Cosmo, CERN 29 // ------------------------------------------- 30 31 #include "G4Trap.hh" 32 #include "G4UTrap.hh" 33 34 #if ( defined(G4GEOM_USE_USOLIDS) || defined(G 35 36 #include "G4AffineTransform.hh" 37 #include "G4VPVParameterisation.hh" 38 #include "G4BoundingEnvelope.hh" 39 40 using namespace CLHEP; 41 42 ////////////////////////////////////////////// 43 // 44 // Constructors 45 // 46 G4UTrap::G4UTrap( const G4String& pName, 47 G4double pdz, 48 G4double pTheta, G4dou 49 G4double pdy1, G4doubl 50 G4double pAlp1, 51 G4double pdy2, G4doubl 52 G4double pAlp2 ) 53 : Base_t(pName, pdz, pTheta, pPhi, pdy1, pdx 54 pAlp1, pdy2, pdx3, pdx4, pAlp2) 55 { 56 G4ThreeVector pt[8]; 57 CheckParameters(); 58 GetVertices(pt); 59 CheckPlanarity(pt); 60 } 61 62 G4UTrap::G4UTrap( const G4String& pName, 63 const G4ThreeVector pt[8] ) 64 : Base_t(pName) 65 { 66 // Start with check of centering - the cente 67 // should cross the origin of frame 68 if ( pt[0].z() >= 0 69 || pt[0].z() != pt[1].z() 70 || pt[0].z() != pt[2].z() 71 || pt[0].z() != pt[3].z() 72 73 || pt[4].z() <= 0 74 || pt[4].z() != pt[5].z() 75 || pt[4].z() != pt[6].z() 76 || pt[4].z() != pt[7].z() 77 78 || std::abs( pt[0].z() + pt[4].z() ) > 79 80 || pt[0].y() != pt[1].y() 81 || pt[2].y() != pt[3].y() 82 || pt[4].y() != pt[5].y() 83 || pt[6].y() != pt[7].y() 84 85 || std::abs(pt[0].y()+pt[2].y()+pt[4]. 86 || std::abs(pt[0].x()+pt[1].x()+pt[4]. 87 pt[2].x()+pt[3].x()+pt[6]. 88 { 89 std::ostringstream message; 90 message << "Invalid vertice coordinates fo 91 G4Exception("G4UTrap::G4UTrap()", "GeomSol 92 FatalException, message); 93 } 94 95 SetPlanes(pt); 96 CheckParameters(); 97 CheckPlanarity(pt); 98 } 99 100 // Constructor for Right Angular Wedge from ST 101 // the UnplacedTrapezoid constructor taking fo 102 // a Trd1. 103 G4UTrap::G4UTrap( const G4String& pName, 104 G4double pZ, 105 G4double pY, 106 G4double pX, G4double 107 : Base_t(pName, 0.5*pZ, /*theta=*/0, /*phi=* 108 /*dx1=*/0.5*pX, /*dx2=*/0.5*pLTX, / 109 /*dy2=*/0.5*pY, /*dx3=*/0.5*pX, /*d 110 /*Alpha2=*/0.5*(pLTX - pX)/pY) 111 { 112 CheckParameters(); 113 } 114 115 G4UTrap::G4UTrap( const G4String& pName, 116 G4double pdx1, G4doub 117 G4double pdy1, G4doub 118 G4double pdz ) 119 : Base_t(pName, pdx1, pdx2, pdy1, pdy2, pdz) 120 { 121 CheckParameters(); 122 } 123 124 G4UTrap::G4UTrap(const G4String& pName, 125 G4double pdx, G4double 126 G4double pAlpha, G4doub 127 : Base_t(pName, pdx, pdy, pdz, pAlpha, pThet 128 { 129 CheckParameters(); 130 } 131 132 G4UTrap::G4UTrap( const G4String& pName ) 133 : Base_t(pName) 134 { 135 } 136 137 ////////////////////////////////////////////// 138 // 139 // Fake default constructor - sets only member 140 // for usage restri 141 // 142 G4UTrap::G4UTrap( __void__& a ) 143 : Base_t(a) 144 { 145 } 146 147 ////////////////////////////////////////////// 148 // 149 // Destructor 150 // 151 G4UTrap::~G4UTrap() = default; 152 153 ////////////////////////////////////////////// 154 // 155 // Copy constructor 156 // 157 G4UTrap::G4UTrap(const G4UTrap& rhs) 158 : Base_t(rhs) 159 { 160 } 161 162 ////////////////////////////////////////////// 163 // 164 // Assignment operator 165 // 166 G4UTrap& G4UTrap::operator = (const G4UTrap& r 167 { 168 // Check assignment to self 169 // 170 if (this == &rhs) { return *this; } 171 172 // Copy base class data 173 // 174 Base_t::operator=(rhs); 175 176 return *this; 177 } 178 179 ////////////////////////////////////////////// 180 // 181 // Accessors 182 // 183 G4double G4UTrap::GetZHalfLength() const 184 { 185 return GetDz(); 186 } 187 G4double G4UTrap::GetYHalfLength1() const 188 { 189 return GetDy1(); 190 } 191 G4double G4UTrap::GetXHalfLength1() const 192 { 193 return GetDx1(); 194 } 195 G4double G4UTrap::GetXHalfLength2() const 196 { 197 return GetDx2(); 198 } 199 G4double G4UTrap::GetTanAlpha1() const 200 { 201 return Base_t::GetTanAlpha1(); 202 } 203 G4double G4UTrap::GetYHalfLength2() const 204 { 205 return GetDy2(); 206 } 207 G4double G4UTrap::GetXHalfLength3() const 208 { 209 return GetDx3(); 210 } 211 G4double G4UTrap::GetXHalfLength4() const 212 { 213 return GetDx4(); 214 } 215 G4double G4UTrap::GetTanAlpha2() const 216 { 217 return Base_t::GetTanAlpha2(); 218 } 219 G4double G4UTrap::GetPhi() const 220 { 221 return Base_t::GetPhi(); 222 } 223 G4double G4UTrap::GetTheta() const 224 { 225 return Base_t::GetTheta(); 226 } 227 G4double G4UTrap::GetAlpha1() const 228 { 229 return Base_t::GetAlpha1(); 230 } 231 G4double G4UTrap::GetAlpha2() const 232 { 233 return Base_t::GetAlpha2(); 234 } 235 TrapSidePlane G4UTrap::GetSidePlane(G4int n) c 236 { 237 TrapSidePlane plane; 238 plane.a = GetStruct().GetPlane(n).fA; 239 plane.b = GetStruct().GetPlane(n).fB; 240 plane.c = GetStruct().GetPlane(n).fC; 241 plane.d = GetStruct().GetPlane(n).fD; 242 return plane; 243 } 244 G4ThreeVector G4UTrap::GetSymAxis() const 245 { 246 G4double tanThetaSphi = GetTanThetaSinPhi(); 247 G4double tanThetaCphi = GetTanThetaCosPhi(); 248 G4double tan2Theta = tanThetaSphi*tanThetaSp 249 G4double cosTheta = 1.0 / std::sqrt(1 + tan2 250 return {tanThetaCphi*cosTheta, tanThetaSphi* 251 } 252 253 ////////////////////////////////////////////// 254 // 255 // Modifier 256 // 257 void G4UTrap::SetAllParameters(G4double pDz, G 258 G4double pDy1, 259 G4double pAlp1, 260 G4double pDy2, 261 G4double pAlp2) 262 { 263 SetDz(pDz); 264 SetDy1(pDy1); 265 SetDy2(pDy2); 266 SetDx1(pDx1); 267 SetDx2(pDx2); 268 SetDx3(pDx3); 269 SetDx4(pDx4); 270 SetTanAlpha1(std::tan(pAlp1)); 271 SetTanAlpha2(std::tan(pAlp2)); 272 // last two will also reset cached variables 273 SetTheta(pTheta); 274 SetPhi(pPhi); 275 fRebuildPolyhedron = true; 276 277 G4ThreeVector pt[8]; 278 CheckParameters(); 279 GetVertices(pt); 280 CheckPlanarity(pt); 281 } 282 283 ////////////////////////////////////////////// 284 // 285 // Set parameters using eight vertices 286 // 287 void G4UTrap::SetPlanes(const G4ThreeVector pt 288 { 289 U3Vector upt[8]; 290 for (unsigned int i=0; i<8; ++i) 291 { 292 upt[i] = U3Vector(pt[i].x(), pt[i].y(), pt 293 } 294 fromCornersToParameters(upt); 295 fRebuildPolyhedron = true; 296 } 297 298 ////////////////////////////////////////////// 299 // 300 // Check dimensions 301 // 302 void G4UTrap::CheckParameters() const 303 { 304 G4double fDz = GetZHalfLength(); 305 G4double fDy1 = GetYHalfLength1(); 306 G4double fDx1 = GetXHalfLength1(); 307 G4double fDx2 = GetXHalfLength2(); 308 G4double fDy2 = GetYHalfLength2(); 309 G4double fDx3 = GetXHalfLength3(); 310 G4double fDx4 = GetXHalfLength4(); 311 312 if (fDz<=0 || 313 fDy1<=0 || fDx1<=0 || fDx2<=0 || 314 fDy2<=0 || fDx3<=0 || fDx4<=0) 315 { 316 std::ostringstream message; 317 message << "Invalid Length Parameters for 318 << "\n X - " <<fDx1<<", "<<fDx2<< 319 << "\n Y - " <<fDy1<<", "<<fDy2 320 << "\n Z - " <<fDz; 321 G4Exception("G4UTrap::CheckParameters()", 322 FatalException, message); 323 } 324 } 325 326 ////////////////////////////////////////////// 327 // 328 // Compute coordinates of vertices 329 // 330 void G4UTrap::GetVertices(G4ThreeVector pt[8]) 331 { 332 G4double fDz = GetZHalfLength(); 333 G4double fDy1 = GetYHalfLength1(); 334 G4double fDx1 = GetXHalfLength1(); 335 G4double fDx2 = GetXHalfLength2(); 336 G4double fDy2 = GetYHalfLength2(); 337 G4double fDx3 = GetXHalfLength3(); 338 G4double fDx4 = GetXHalfLength4(); 339 G4double fTalpha1 = GetTanAlpha1(); 340 G4double fTalpha2 = GetTanAlpha2(); 341 342 G4double DzTthetaCphi = fDz*GetTanThetaCosPh 343 G4double DzTthetaSphi = fDz*GetTanThetaSinPh 344 G4double Dy1Talpha1 = fDy1*fTalpha1; 345 G4double Dy2Talpha2 = fDy2*fTalpha2; 346 347 pt[0].set(-DzTthetaCphi-Dy1Talpha1-fDx1,-DzT 348 pt[1].set(-DzTthetaCphi-Dy1Talpha1+fDx1,-DzT 349 pt[2].set(-DzTthetaCphi+Dy1Talpha1-fDx2,-DzT 350 pt[3].set(-DzTthetaCphi+Dy1Talpha1+fDx2,-DzT 351 pt[4].set( DzTthetaCphi-Dy2Talpha2-fDx3, DzT 352 pt[5].set( DzTthetaCphi-Dy2Talpha2+fDx3, DzT 353 pt[6].set( DzTthetaCphi+Dy2Talpha2-fDx4, DzT 354 pt[7].set( DzTthetaCphi+Dy2Talpha2+fDx4, DzT 355 } 356 357 ////////////////////////////////////////////// 358 // 359 // Check planarity of lateral planes 360 // 361 void G4UTrap::CheckPlanarity(const G4ThreeVect 362 { 363 constexpr G4int iface[4][4] = { {0,4,5,1}, { 364 const static G4String side[4] = { "~-Y", "~+ 365 366 for (G4int i=0; i<4; ++i) 367 { 368 TrapSidePlane plane = GetSidePlane(i); 369 G4double dmax = 0; 370 for (G4int k=0; k<4; ++k) 371 { 372 const G4ThreeVector p = pt[iface[i][k]]; 373 G4double dist = plane.a*p.x() + plane.b* 374 if (std::abs(dist) > std::abs(dmax)) dma 375 } 376 if (std::abs(dmax) > 1000 * kCarTolerance) 377 { 378 std::ostringstream message; 379 message << "Side face " << side[i] << " 380 << GetName() << "\nDiscrepancy: 381 StreamInfo(message); 382 G4Exception("G4UTrap::CheckPlanarity()", 383 FatalException, message); 384 } 385 } 386 } 387 388 ////////////////////////////////////////////// 389 // 390 // Dispatch to parameterisation for replicatio 391 // computation & modification. 392 // 393 void G4UTrap::ComputeDimensions( G4VPVPar 394 const G4int n, 395 const G4VPhysi 396 { 397 p->ComputeDimensions(*(G4Trap*)this,n,pRep); 398 } 399 400 ////////////////////////////////////////////// 401 // 402 // Make a clone of the object 403 // 404 G4VSolid* G4UTrap::Clone() const 405 { 406 return new G4UTrap(*this); 407 } 408 409 ////////////////////////////////////////////// 410 // 411 // Get bounding box 412 413 void G4UTrap::BoundingLimits(G4ThreeVector& pM 414 { 415 static G4bool checkBBox = true; 416 417 TrapSidePlane planes[4]; 418 for (G4int i=0; i<4; ++i) { planes[i] = GetS 419 420 G4double xmin = kInfinity, xmax = -kInfinity 421 G4double ymin = kInfinity, ymax = -kInfinity 422 G4double dz = GetZHalfLength(); 423 for (G4int i=0; i<8; ++i) 424 { 425 G4int iy = (i==0 || i==1 || i==4 || i==5) 426 G4int ix = (i==0 || i==2 || i==4 || i==6) 427 G4double z = (i < 4) ? -dz : dz; 428 G4double y = -(planes[iy].c*z + planes[iy] 429 G4double x = -(planes[ix].b*y + planes[ix] 430 if (x < xmin) xmin = x; 431 if (x > xmax) xmax = x; 432 if (y < ymin) ymin = y; 433 if (y > ymax) ymax = y; 434 } 435 436 pMin.set(xmin,ymin,-dz); 437 pMax.set(xmax,ymax, dz); 438 439 // Check correctness of the bounding box 440 // 441 if (pMin.x() >= pMax.x() || pMin.y() >= pMax 442 { 443 std::ostringstream message; 444 message << "Bad bounding box (min >= max) 445 << GetName() << " !" 446 << "\npMin = " << pMin 447 << "\npMax = " << pMax; 448 G4Exception("G4UTrap::BoundingLimits()", " 449 JustWarning, message); 450 StreamInfo(G4cout); 451 } 452 453 // Check consistency of bounding boxes 454 // 455 if (checkBBox) 456 { 457 G4double tolerance = kCarTolerance; 458 U3Vector vmin, vmax; 459 Extent(vmin,vmax); 460 if (std::abs(pMin.x()-vmin.x()) > toleranc 461 std::abs(pMin.y()-vmin.y()) > toleranc 462 std::abs(pMin.z()-vmin.z()) > toleranc 463 std::abs(pMax.x()-vmax.x()) > toleranc 464 std::abs(pMax.y()-vmax.y()) > toleranc 465 std::abs(pMax.z()-vmax.z()) > toleranc 466 { 467 std::ostringstream message; 468 message << "Inconsistency in bounding bo 469 << GetName() << " !" 470 << "\nBBox min: wrapper = " << p 471 << "\nBBox max: wrapper = " << p 472 G4Exception("G4UTrap::BoundingLimits()", 473 JustWarning, message); 474 checkBBox = false; 475 } 476 } 477 } 478 479 ////////////////////////////////////////////// 480 // 481 // Calculate extent under transform and specif 482 483 G4bool 484 G4UTrap::CalculateExtent(const EAxis pAxis, 485 const G4VoxelLimits& 486 const G4AffineTransfo 487 G4double& pMin, 488 { 489 G4ThreeVector bmin, bmax; 490 G4bool exist; 491 492 // Check bounding box (bbox) 493 // 494 BoundingLimits(bmin,bmax); 495 G4BoundingEnvelope bbox(bmin,bmax); 496 #ifdef G4BBOX_EXTENT 497 if (true) return bbox.CalculateExtent(pAxis, 498 #endif 499 if (bbox.BoundingBoxVsVoxelLimits(pAxis,pVox 500 { 501 return exist = pMin < pMax; 502 } 503 504 // Set bounding envelope (benv) and calculat 505 // 506 TrapSidePlane planes[4]; 507 for (G4int i=0; i<4; ++i) { planes[i] = GetS 508 509 G4ThreeVector pt[8]; 510 G4double dz = GetZHalfLength(); 511 for (G4int i=0; i<8; ++i) 512 { 513 G4int iy = (i==0 || i==1 || i==4 || i==5) 514 G4int ix = (i==0 || i==2 || i==4 || i==6) 515 G4double z = (i < 4) ? -dz : dz; 516 G4double y = -(planes[iy].c*z + planes[iy] 517 G4double x = -(planes[ix].b*y + planes[ix] 518 pt[i].set(x,y,z); 519 } 520 521 G4ThreeVectorList baseA(4), baseB(4); 522 baseA[0] = pt[0]; 523 baseA[1] = pt[1]; 524 baseA[2] = pt[3]; 525 baseA[3] = pt[2]; 526 527 baseB[0] = pt[4]; 528 baseB[1] = pt[5]; 529 baseB[2] = pt[7]; 530 baseB[3] = pt[6]; 531 532 std::vector<const G4ThreeVectorList *> polyg 533 polygons[0] = &baseA; 534 polygons[1] = &baseB; 535 536 G4BoundingEnvelope benv(bmin,bmax,polygons); 537 exist = benv.CalculateExtent(pAxis,pVoxelLim 538 return exist; 539 } 540 541 ////////////////////////////////////////////// 542 // 543 // Create polyhedron for visualization 544 // 545 G4Polyhedron* G4UTrap::CreatePolyhedron() cons 546 { 547 return new G4PolyhedronTrap(GetZHalfLength() 548 GetYHalfLength1( 549 GetXHalfLength1( 550 GetYHalfLength2( 551 GetXHalfLength3( 552 } 553 554 #endif // G4GEOM_USE_USOLIDS 555