| 1 | // Created by: Peter KURNEV |
| 2 | // Copyright (c) 2010-2014 OPEN CASCADE SAS |
| 3 | // Copyright (c) 2007-2010 CEA/DEN, EDF R&D, OPEN CASCADE |
| 4 | // Copyright (c) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN, CEDRAT, |
| 5 | // EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS |
| 6 | // |
| 7 | // This file is part of Open CASCADE Technology software library. |
| 8 | // |
| 9 | // This library is free software; you can redistribute it and/or modify it under |
| 10 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 11 | // by the Free Software Foundation, with special exception defined in the file |
| 12 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 13 | // distribution for complete text of the license and disclaimer of any warranty. |
| 14 | // |
| 15 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 16 | // commercial license or contractual agreement. |
| 17 | |
| 18 | #include <BOPAlgo_BuilderSolid.ixx> |
| 19 | // |
| 20 | #include <NCollection_List.hxx> |
| 21 | #include <NCollection_DataMap.hxx> |
| 22 | #include <NCollection_UBTreeFiller.hxx> |
| 23 | // |
| 24 | #include <gp_Pnt2d.hxx> |
| 25 | #include <gp_Pln.hxx> |
| 26 | #include <gp_Vec.hxx> |
| 27 | #include <gp_Dir.hxx> |
| 28 | #include <gp_Pnt.hxx> |
| 29 | // |
| 30 | #include <TColStd_MapIntegerHasher.hxx> |
| 31 | // |
| 32 | #include <Geom_Curve.hxx> |
| 33 | #include <Geom_Surface.hxx> |
| 34 | #include <Geom2d_Curve.hxx> |
| 35 | // |
| 36 | #include <TopAbs.hxx> |
| 37 | // |
| 38 | #include <TopoDS_Iterator.hxx> |
| 39 | #include <TopoDS_Face.hxx> |
| 40 | #include <TopoDS_Shape.hxx> |
| 41 | #include <TopoDS_Shell.hxx> |
| 42 | #include <TopoDS_Edge.hxx> |
| 43 | #include <TopoDS_Solid.hxx> |
| 44 | #include <TopoDS_Vertex.hxx> |
| 45 | #include <TopoDS_Compound.hxx> |
| 46 | |
| 47 | #include <BRep_Builder.hxx> |
| 48 | #include <BRep_Tool.hxx> |
| 49 | // |
| 50 | #include <TopExp.hxx> |
| 51 | #include <TopExp_Explorer.hxx> |
| 52 | // |
| 53 | #include <BRepBndLib.hxx> |
| 54 | #include <BRepClass3d_SolidClassifier.hxx> |
| 55 | // |
| 56 | #include <BOPCol_IndexedDataMapOfShapeListOfShape.hxx> |
| 57 | #include <BOPCol_ListOfShape.hxx> |
| 58 | #include <BOPCol_MapOfOrientedShape.hxx> |
| 59 | #include <BOPCol_DataMapOfShapeShape.hxx> |
| 60 | #include <BOPCol_DataMapOfShapeListOfShape.hxx> |
| 61 | #include <BOPCol_MapOfShape.hxx> |
| 62 | #include <BOPCol_BoxBndTree.hxx> |
| 63 | #include <BOPCol_ListOfInteger.hxx> |
| 64 | // |
| 65 | #include <BOPTools.hxx> |
| 66 | #include <BOPTools_CoupleOfShape.hxx> |
| 67 | #include <BOPTools_AlgoTools.hxx> |
| 68 | // |
| 69 | #include <BOPInt_Context.hxx> |
| 70 | // |
| 71 | #include <BOPAlgo_ShellSplitter.hxx> |
| 72 | |
| 73 | static |
| 74 | Standard_Boolean IsGrowthShell(const TopoDS_Shape& , |
| 75 | const BOPCol_IndexedMapOfShape& ); |
| 76 | static |
| 77 | Standard_Boolean IsHole(const TopoDS_Shape& , |
| 78 | Handle(BOPInt_Context)& ); |
| 79 | static |
| 80 | Standard_Boolean IsInside(const TopoDS_Shape& , |
| 81 | const TopoDS_Shape& , |
| 82 | Handle(BOPInt_Context)& ); |
| 83 | static |
| 84 | void MakeInternalShells(const BOPCol_MapOfShape& , |
| 85 | BOPCol_ListOfShape& ); |
| 86 | |
| 87 | //======================================================================= |
| 88 | //class : BOPAlgo_BuilderSolid_ShapeBox |
| 89 | //purpose : Auxiliary class |
| 90 | //======================================================================= |
| 91 | class BOPAlgo_BuilderSolid_ShapeBox { |
| 92 | public: |
| 93 | BOPAlgo_BuilderSolid_ShapeBox() { |
| 94 | myIsHole=Standard_False; |
| 95 | }; |
| 96 | // |
| 97 | ~BOPAlgo_BuilderSolid_ShapeBox() { |
| 98 | }; |
| 99 | // |
| 100 | void SetShape(const TopoDS_Shape& aS) { |
| 101 | myShape=aS; |
| 102 | }; |
| 103 | // |
| 104 | const TopoDS_Shape& Shape()const { |
| 105 | return myShape; |
| 106 | }; |
| 107 | // |
| 108 | void SetBox(const Bnd_Box& aBox) { |
| 109 | myBox=aBox; |
| 110 | }; |
| 111 | // |
| 112 | const Bnd_Box& Box()const { |
| 113 | return myBox; |
| 114 | }; |
| 115 | // |
| 116 | void SetIsHole(const Standard_Boolean bFlag) { |
| 117 | myIsHole=bFlag; |
| 118 | }; |
| 119 | // |
| 120 | Standard_Boolean IsHole()const { |
| 121 | return myIsHole; |
| 122 | }; |
| 123 | // |
| 124 | protected: |
| 125 | Standard_Boolean myIsHole; |
| 126 | TopoDS_Shape myShape; |
| 127 | Bnd_Box myBox; |
| 128 | }; |
| 129 | // |
| 130 | typedef NCollection_DataMap\ |
| 131 | <Standard_Integer, BOPAlgo_BuilderSolid_ShapeBox, TColStd_MapIntegerHasher> \ |
| 132 | BOPAlgo_DataMapOfIntegerBSSB; |
| 133 | // |
| 134 | typedef BOPAlgo_DataMapOfIntegerBSSB::Iterator \ |
| 135 | BOPAlgo_DataMapIteratorOfDataMapOfIntegerBSSB; |
| 136 | // |
| 137 | //======================================================================= |
| 138 | //function : |
| 139 | //purpose : |
| 140 | //======================================================================= |
| 141 | BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid() |
| 142 | : |
| 143 | BOPAlgo_BuilderArea() |
| 144 | { |
| 145 | } |
| 146 | //======================================================================= |
| 147 | //function : |
| 148 | //purpose : |
| 149 | //======================================================================= |
| 150 | BOPAlgo_BuilderSolid::BOPAlgo_BuilderSolid |
| 151 | (const Handle(NCollection_BaseAllocator)& theAllocator) |
| 152 | : |
| 153 | BOPAlgo_BuilderArea(theAllocator) |
| 154 | { |
| 155 | } |
| 156 | //======================================================================= |
| 157 | //function : ~ |
| 158 | //purpose : |
| 159 | //======================================================================= |
| 160 | BOPAlgo_BuilderSolid::~BOPAlgo_BuilderSolid() |
| 161 | { |
| 162 | } |
| 163 | //======================================================================= |
| 164 | //function : SetSolid |
| 165 | //purpose : |
| 166 | //======================================================================= |
| 167 | void BOPAlgo_BuilderSolid::SetSolid(const TopoDS_Solid& aS) |
| 168 | { |
| 169 | mySolid=aS; |
| 170 | } |
| 171 | //======================================================================= |
| 172 | //function : Solid |
| 173 | //purpose : |
| 174 | //======================================================================= |
| 175 | const TopoDS_Solid& BOPAlgo_BuilderSolid::Solid()const |
| 176 | { |
| 177 | return mySolid; |
| 178 | } |
| 179 | //======================================================================= |
| 180 | //function : Perform |
| 181 | //purpose : |
| 182 | //======================================================================= |
| 183 | void BOPAlgo_BuilderSolid::Perform() |
| 184 | { |
| 185 | myErrorStatus=0; |
| 186 | // |
| 187 | if (myContext.IsNull()) { |
| 188 | myContext=new BOPInt_Context; |
| 189 | } |
| 190 | // |
| 191 | TopoDS_Compound aC; |
| 192 | BRep_Builder aBB; |
| 193 | BOPCol_ListIteratorOfListOfShape aIt; |
| 194 | // |
| 195 | aBB.MakeCompound(aC); |
| 196 | aIt.Initialize(myShapes); |
| 197 | for(; aIt.More(); aIt.Next()) { |
| 198 | const TopoDS_Shape& aF=aIt.Value(); |
| 199 | aBB.Add(aC, aF); |
| 200 | } |
| 201 | // |
| 202 | // |
| 203 | PerformShapesToAvoid(); |
| 204 | if (myErrorStatus) { |
| 205 | return; |
| 206 | } |
| 207 | // |
| 208 | PerformLoops(); |
| 209 | if (myErrorStatus) { |
| 210 | return; |
| 211 | } |
| 212 | PerformAreas(); |
| 213 | if (myErrorStatus) { |
| 214 | return; |
| 215 | } |
| 216 | PerformInternalShapes(); |
| 217 | if (myErrorStatus) { |
| 218 | return; |
| 219 | } |
| 220 | } |
| 221 | //======================================================================= |
| 222 | //function :PerformShapesToAvoid |
| 223 | //purpose : |
| 224 | //======================================================================= |
| 225 | void BOPAlgo_BuilderSolid::PerformShapesToAvoid() |
| 226 | { |
| 227 | Standard_Boolean bFound; |
| 228 | Standard_Integer i, iCnt, aNbE, aNbF; |
| 229 | TopAbs_Orientation aOrE; |
| 230 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
| 231 | BOPCol_ListIteratorOfListOfShape aIt; |
| 232 | // |
| 233 | myShapesToAvoid.Clear(); |
| 234 | // |
| 235 | iCnt=0; |
| 236 | for(;;) { |
| 237 | ++iCnt; |
| 238 | bFound=Standard_False; |
| 239 | // |
| 240 | // 1. MEF |
| 241 | aMEF.Clear(); |
| 242 | aIt.Initialize (myShapes); |
| 243 | for (; aIt.More(); aIt.Next()) { |
| 244 | const TopoDS_Shape& aF=aIt.Value(); |
| 245 | if (!myShapesToAvoid.Contains(aF)) { |
| 246 | BOPTools::MapShapesAndAncestors(aF, TopAbs_EDGE, TopAbs_FACE, aMEF); |
| 247 | } |
| 248 | } |
| 249 | aNbE=aMEF.Extent(); |
| 250 | // |
| 251 | // 2. myFacesToAvoid |
| 252 | for (i=1; i<=aNbE; ++i) { |
| 253 | const TopoDS_Edge& aE=(*(TopoDS_Edge*)(&aMEF.FindKey(i))); |
| 254 | if (BRep_Tool::Degenerated(aE)) { |
| 255 | continue; |
| 256 | } |
| 257 | // |
| 258 | BOPCol_ListOfShape& aLF=aMEF.ChangeFromKey(aE); |
| 259 | aNbF=aLF.Extent(); |
| 260 | if (!aNbF) { |
| 261 | continue; |
| 262 | } |
| 263 | // |
| 264 | aOrE=aE.Orientation(); |
| 265 | // |
| 266 | const TopoDS_Face& aF1=(*(TopoDS_Face*)(&aLF.First())); |
| 267 | if (aNbF==1) { |
| 268 | if (aOrE==TopAbs_INTERNAL) { |
| 269 | continue; |
| 270 | } |
| 271 | bFound=Standard_True; |
| 272 | myShapesToAvoid.Add(aF1); |
| 273 | } |
| 274 | else if (aNbF==2) { |
| 275 | const TopoDS_Face& aF2=(*(TopoDS_Face*)(&aLF.Last())); |
| 276 | if (aF2.IsSame(aF1)) { |
| 277 | if (BRep_Tool::IsClosed(aE, aF1)) { |
| 278 | continue; |
| 279 | } |
| 280 | // |
| 281 | if (aOrE==TopAbs_INTERNAL) { |
| 282 | continue; |
| 283 | } |
| 284 | // |
| 285 | bFound=Standard_True; |
| 286 | myShapesToAvoid.Add(aF1); |
| 287 | myShapesToAvoid.Add(aF2); |
| 288 | } |
| 289 | } |
| 290 | }// for (i=1; i<=aNbE; ++i) { |
| 291 | // |
| 292 | if (!bFound) { |
| 293 | break; |
| 294 | } |
| 295 | // |
| 296 | }//for(;;) { |
| 297 | } |
| 298 | //======================================================================= |
| 299 | //function : PerformLoops |
| 300 | //purpose : |
| 301 | //======================================================================= |
| 302 | void BOPAlgo_BuilderSolid::PerformLoops() |
| 303 | { |
| 304 | Standard_Integer iErr; |
| 305 | BOPCol_ListIteratorOfListOfShape aIt; |
| 306 | TopoDS_Iterator aItS; |
| 307 | BOPCol_MapIteratorOfMapOfOrientedShape aItM; |
| 308 | BOPAlgo_ShellSplitter aSSp; |
| 309 | // |
| 310 | myErrorStatus=0; |
| 311 | myLoops.Clear(); |
| 312 | // |
| 313 | // 1. Shells Usual |
| 314 | aIt.Initialize (myShapes); |
| 315 | for (; aIt.More(); aIt.Next()) { |
| 316 | const TopoDS_Shape& aF=aIt.Value(); |
| 317 | if (!myShapesToAvoid.Contains(aF)) { |
| 318 | aSSp.AddStartElement(aF); |
| 319 | } |
| 320 | } |
| 321 | // |
| 322 | aSSp.SetRunParallel(myRunParallel); |
| 323 | aSSp.Perform(); |
| 324 | iErr=aSSp.ErrorStatus(); |
| 325 | if (iErr) { |
| 326 | return; |
| 327 | } |
| 328 | // |
| 329 | const BOPCol_ListOfShape& aLSh=aSSp.Shells(); |
| 330 | aIt.Initialize (aLSh); |
| 331 | for (; aIt.More(); aIt.Next()) { |
| 332 | const TopoDS_Shape& aSh=aIt.Value(); |
| 333 | myLoops.Append(aSh); |
| 334 | } |
| 335 | //================================================= |
| 336 | // |
| 337 | // 2. Post Treatment |
| 338 | Standard_Integer aNbFA; |
| 339 | BRep_Builder aBB; |
| 340 | BOPCol_MapOfOrientedShape AddedFacesMap; |
| 341 | BOPCol_IndexedDataMapOfShapeListOfShape aEFMap; |
| 342 | BOPCol_MapOfOrientedShape aMP; |
| 343 | // |
| 344 | // a. collect all edges that are in loops |
| 345 | aIt.Initialize (myLoops); |
| 346 | for (; aIt.More(); aIt.Next()) { |
| 347 | const TopoDS_Shape& aS=aIt.Value(); |
| 348 | aItS.Initialize(aS); |
| 349 | for (; aItS.More(); aItS.Next()) { |
| 350 | const TopoDS_Shape& aF=aItS.Value(); |
| 351 | aMP.Add(aF); |
| 352 | } |
| 353 | } |
| 354 | // |
| 355 | // b. collect all edges that are to avoid |
| 356 | aItM.Initialize(myShapesToAvoid); |
| 357 | for (; aItM.More(); aItM.Next()) { |
| 358 | const TopoDS_Shape& aF=aItM.Key(); |
| 359 | aMP.Add(aF); |
| 360 | } |
| 361 | // |
| 362 | // c. add all edges that are not processed to myShapesToAvoid |
| 363 | aIt.Initialize (myShapes); |
| 364 | for (; aIt.More(); aIt.Next()) { |
| 365 | const TopoDS_Shape& aF=aIt.Value(); |
| 366 | if (!aMP.Contains(aF)) { |
| 367 | myShapesToAvoid.Add(aF); |
| 368 | } |
| 369 | } |
| 370 | //================================================= |
| 371 | // |
| 372 | // 3.Internal Shells |
| 373 | myLoopsInternal.Clear(); |
| 374 | // |
| 375 | aEFMap.Clear(); |
| 376 | AddedFacesMap.Clear(); |
| 377 | // |
| 378 | aNbFA=myShapesToAvoid.Extent(); |
| 379 | // |
| 380 | aItM.Initialize(myShapesToAvoid); |
| 381 | for (; aItM.More(); aItM.Next()) { |
| 382 | const TopoDS_Shape& aFF=aItM.Key(); |
| 383 | BOPTools::MapShapesAndAncestors(aFF, |
| 384 | TopAbs_EDGE, TopAbs_FACE, |
| 385 | aEFMap); |
| 386 | } |
| 387 | // |
| 388 | aItM.Initialize(myShapesToAvoid); |
| 389 | for (; aItM.More(); aItM.Next()) { |
| 390 | const TopoDS_Shape& aFF=aItM.Key(); |
| 391 | if (!AddedFacesMap.Add(aFF)) { |
| 392 | continue; |
| 393 | } |
| 394 | // |
| 395 | // make a new shell |
| 396 | TopoDS_Shell aShell; |
| 397 | aBB.MakeShell(aShell); |
| 398 | aBB.Add(aShell, aFF); |
| 399 | // |
| 400 | TopoDS_Iterator aItAddedF (aShell); |
| 401 | for (; aItAddedF.More(); aItAddedF.Next()) { |
| 402 | const TopoDS_Face& aF = (*(TopoDS_Face*)(&aItAddedF.Value())); |
| 403 | // |
| 404 | TopExp_Explorer aEdgeExp(aF, TopAbs_EDGE); |
| 405 | for (; aEdgeExp.More(); aEdgeExp.Next()) { |
| 406 | const TopoDS_Edge& aE = (*(TopoDS_Edge*)(&aEdgeExp.Current())); |
| 407 | const BOPCol_ListOfShape& aLF=aEFMap.FindFromKey(aE); |
| 408 | aIt.Initialize(aLF); |
| 409 | for (; aIt.More(); aIt.Next()) { |
| 410 | const TopoDS_Face& aFL=(*(TopoDS_Face*)(&aIt.Value())); |
| 411 | if (AddedFacesMap.Add(aFL)){ |
| 412 | aBB.Add(aShell, aFL); |
| 413 | } |
| 414 | } |
| 415 | } |
| 416 | } |
| 417 | myLoopsInternal.Append(aShell); |
| 418 | } |
| 419 | } |
| 420 | //======================================================================= |
| 421 | //function : PerformAreas |
| 422 | //purpose : |
| 423 | //======================================================================= |
| 424 | void BOPAlgo_BuilderSolid::PerformAreas() |
| 425 | { |
| 426 | Standard_Boolean bIsGrowth, bIsHole; |
| 427 | Standard_Integer k,aNbHoles; |
| 428 | BRep_Builder aBB; |
| 429 | BOPCol_ListIteratorOfListOfShape aItLS; |
| 430 | BOPCol_ListOfShape aNewSolids, aHoleShells; |
| 431 | BOPCol_DataMapOfShapeShape aInOutMap; |
| 432 | BOPCol_IndexedMapOfShape aMHF; |
| 433 | BOPCol_ListIteratorOfListOfInteger aItLI; |
| 434 | BOPCol_BoxBndTreeSelector aSelector; |
| 435 | BOPCol_BoxBndTree aBBTree; |
| 436 | NCollection_UBTreeFiller <Standard_Integer, Bnd_Box> aTreeFiller(aBBTree); |
| 437 | BOPAlgo_DataMapOfIntegerBSSB aDMISB(100); |
| 438 | BOPAlgo_DataMapIteratorOfDataMapOfIntegerBSSB aItDMISB; |
| 439 | BOPCol_DataMapOfShapeListOfShape aMSH; |
| 440 | BOPCol_DataMapIteratorOfDataMapOfShapeShape aItDMSS; |
| 441 | BOPCol_DataMapIteratorOfDataMapOfShapeListOfShape aItMSH; |
| 442 | // |
| 443 | myErrorStatus=0; |
| 444 | // |
| 445 | myAreas.Clear(); |
| 446 | // |
| 447 | // Draft solids [aNewSolids] |
| 448 | aItLS.Initialize(myLoops); |
| 449 | for (k=0; aItLS.More(); aItLS.Next(), ++k) { |
| 450 | TopoDS_Solid aSolid; |
| 451 | Bnd_Box aBox; |
| 452 | BOPAlgo_BuilderSolid_ShapeBox aSB; |
| 453 | // |
| 454 | const TopoDS_Shape& aShell = aItLS.Value(); |
| 455 | aSB.SetShape(aShell); |
| 456 | // |
| 457 | BRepBndLib::Add(aShell, aBox); |
| 458 | bIsHole=Standard_False; |
| 459 | // |
| 460 | bIsGrowth=IsGrowthShell(aShell, aMHF); |
| 461 | if (bIsGrowth) { |
| 462 | // make a growth solid from a shell |
| 463 | aBB.MakeSolid(aSolid); |
| 464 | aBB.Add (aSolid, aShell); |
| 465 | // |
| 466 | aNewSolids.Append (aSolid); |
| 467 | aSB.SetShape(aSolid); |
| 468 | } |
| 469 | else{ |
| 470 | // check if a shell is a hole |
| 471 | bIsHole=IsHole(aShell, myContext); |
| 472 | if (bIsHole) { |
| 473 | aHoleShells.Append(aShell); |
| 474 | BOPTools::MapShapes(aShell, TopAbs_FACE, aMHF); |
| 475 | aSB.SetShape(aShell); |
| 476 | } |
| 477 | else { |
| 478 | // make a growth solid from a shell |
| 479 | aBB.MakeSolid(aSolid); |
| 480 | aBB.Add (aSolid, aShell); |
| 481 | // |
| 482 | aNewSolids.Append (aSolid); |
| 483 | aSB.SetShape(aSolid); |
| 484 | } |
| 485 | } |
| 486 | // |
| 487 | aSB.SetBox(aBox); |
| 488 | aSB.SetIsHole(bIsHole); |
| 489 | aDMISB.Bind(k, aSB); |
| 490 | } |
| 491 | // |
| 492 | // 2. Prepare TreeFiller |
| 493 | aItDMISB.Initialize(aDMISB); |
| 494 | for (; aItDMISB.More(); aItDMISB.Next()) { |
| 495 | k=aItDMISB.Key(); |
| 496 | const BOPAlgo_BuilderSolid_ShapeBox& aSB=aItDMISB.Value(); |
| 497 | // |
| 498 | bIsHole=aSB.IsHole(); |
| 499 | if (bIsHole) { |
| 500 | const Bnd_Box& aBox=aSB.Box(); |
| 501 | aTreeFiller.Add(k, aBox); |
| 502 | } |
| 503 | } |
| 504 | // |
| 505 | // 3. Shake TreeFiller |
| 506 | aTreeFiller.Fill(); |
| 507 | // |
| 508 | // 4. Find outer growth shell that is most close |
| 509 | // to each hole shell |
| 510 | aItDMISB.Initialize(aDMISB); |
| 511 | for (; aItDMISB.More(); aItDMISB.Next()) { |
| 512 | k=aItDMISB.Key(); |
| 513 | const BOPAlgo_BuilderSolid_ShapeBox& aSB=aItDMISB.Value(); |
| 514 | bIsHole=aSB.IsHole(); |
| 515 | if (bIsHole) { |
| 516 | continue; |
| 517 | } |
| 518 | // |
| 519 | const TopoDS_Shape aSolid=aSB.Shape(); |
| 520 | const Bnd_Box& aBoxSolid=aSB.Box(); |
| 521 | // |
| 522 | aSelector.Clear(); |
| 523 | aSelector.SetBox(aBoxSolid); |
| 524 | // |
| 525 | aNbHoles=aBBTree.Select(aSelector); |
| 526 | // |
| 527 | const BOPCol_ListOfInteger& aLI=aSelector.Indices(); |
| 528 | // |
| 529 | aItLI.Initialize(aLI); |
| 530 | for (; aItLI.More(); aItLI.Next()) { |
| 531 | k=aItLI.Value(); |
| 532 | const BOPAlgo_BuilderSolid_ShapeBox& aSBk=aDMISB.Find(k); |
| 533 | const TopoDS_Shape& aHole=aSBk.Shape(); |
| 534 | // |
| 535 | if (!IsInside(aHole, aSolid, myContext)){ |
| 536 | continue; |
| 537 | } |
| 538 | // |
| 539 | if (aInOutMap.IsBound (aHole)){ |
| 540 | const TopoDS_Shape& aHole2=aInOutMap(aHole); |
| 541 | if (IsInside(aHole, aHole2, myContext)) { |
| 542 | aInOutMap.UnBind(aHole); |
| 543 | aInOutMap.Bind (aHole, aSolid); |
| 544 | } |
| 545 | } |
| 546 | else{ |
| 547 | aInOutMap.Bind(aHole, aSolid); |
| 548 | } |
| 549 | } |
| 550 | }//for (; aItDMISB.More(); aItDMISB.Next()) { |
| 551 | // |
| 552 | // 5. Map [Solid/Holes] -> aMSH |
| 553 | aItDMSS.Initialize(aInOutMap); |
| 554 | for (; aItDMSS.More(); aItDMSS.Next()) { |
| 555 | const TopoDS_Shape& aHole=aItDMSS.Key(); |
| 556 | const TopoDS_Shape& aSolid=aItDMSS.Value(); |
| 557 | // |
| 558 | if (aMSH.IsBound(aSolid)) { |
| 559 | BOPCol_ListOfShape& aLH=aMSH.ChangeFind(aSolid); |
| 560 | aLH.Append(aHole); |
| 561 | } |
| 562 | else { |
| 563 | BOPCol_ListOfShape aLH; |
| 564 | aLH.Append(aHole); |
| 565 | aMSH.Bind(aSolid, aLH); |
| 566 | } |
| 567 | } |
| 568 | // |
| 569 | // 6. Add aHoles to Solids |
| 570 | aItMSH.Initialize(aMSH); |
| 571 | for (; aItMSH.More(); aItMSH.Next()) { |
| 572 | TopoDS_Solid aSolid=(*(TopoDS_Solid*)(&aItMSH.Key())); |
| 573 | // |
| 574 | const BOPCol_ListOfShape& aLH=aItMSH.Value(); |
| 575 | aItLS.Initialize(aLH); |
| 576 | for (; aItLS.More(); aItLS.Next()) { |
| 577 | const TopoDS_Shape& aHole = aItLS.Value(); |
| 578 | aBB.Add (aSolid, aHole); |
| 579 | } |
| 580 | // |
| 581 | // update classifier |
| 582 | BRepClass3d_SolidClassifier& aSC= |
| 583 | myContext->SolidClassifier(aSolid); |
| 584 | aSC.Load(aSolid); |
| 585 | // |
| 586 | } |
| 587 | // |
| 588 | // 7. These aNewSolids are draft solids that |
| 589 | // do not contain any internal shapes |
| 590 | aItLS.Initialize(aNewSolids); |
| 591 | for ( ; aItLS.More(); aItLS.Next()) { |
| 592 | const TopoDS_Shape& aSx=aItLS.Value(); |
| 593 | myAreas.Append(aSx); |
| 594 | } |
| 595 | // Add holes that outside the solids to myAreas |
| 596 | aItLS.Initialize(aHoleShells); |
| 597 | for (; aItLS.More(); aItLS.Next()) { |
| 598 | const TopoDS_Shape& aHole = aItLS.Value(); |
| 599 | if (!aInOutMap.IsBound(aHole)){ |
| 600 | TopoDS_Solid aSolid; |
| 601 | // |
| 602 | aBB.MakeSolid(aSolid); |
| 603 | aBB.Add (aSolid, aHole); |
| 604 | // |
| 605 | myAreas.Append(aSolid); |
| 606 | } |
| 607 | } |
| 608 | } |
| 609 | //======================================================================= |
| 610 | //function : PerformInternalShapes |
| 611 | //purpose : |
| 612 | //======================================================================= |
| 613 | void BOPAlgo_BuilderSolid::PerformInternalShapes() |
| 614 | { |
| 615 | myErrorStatus=0; |
| 616 | // |
| 617 | Standard_Integer aNbFI=myLoopsInternal.Extent(); |
| 618 | if (!aNbFI) {// nothing to do |
| 619 | return; |
| 620 | } |
| 621 | // |
| 622 | BRep_Builder aBB; |
| 623 | TopoDS_Iterator aIt; |
| 624 | BOPCol_ListIteratorOfListOfShape aShellIt, aSolidIt; |
| 625 | BOPCol_MapIteratorOfMapOfShape aItMF; |
| 626 | // |
| 627 | BOPCol_MapOfShape aMF, aMFP, aMFx; |
| 628 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
| 629 | BOPCol_ListOfShape aLSI; |
| 630 | // |
| 631 | // 1. All internal faces |
| 632 | aShellIt.Initialize(myLoopsInternal); |
| 633 | for (; aShellIt.More(); aShellIt.Next()) { |
| 634 | const TopoDS_Shape& aShell=aShellIt.Value(); |
| 635 | aIt.Initialize(aShell); |
| 636 | for (; aIt.More(); aIt.Next()) { |
| 637 | const TopoDS_Shape& aF=aIt.Value(); |
| 638 | aMF.Add(aF); |
| 639 | } |
| 640 | } |
| 641 | aNbFI=aMF.Extent(); |
| 642 | // |
| 643 | // 2 Process solids |
| 644 | aSolidIt.Initialize(myAreas); |
| 645 | for ( ; aSolidIt.More(); aSolidIt.Next()) { |
| 646 | TopoDS_Solid& aSolid=(*(TopoDS_Solid*)(&aSolidIt.Value())); |
| 647 | // |
| 648 | TopExp_Explorer anExpSol(aSolid, TopAbs_FACE);; |
| 649 | for (; anExpSol.More(); anExpSol.Next()) { |
| 650 | const TopoDS_Shape& aF = anExpSol.Current(); |
| 651 | TopoDS_Shape aFF=aF; |
| 652 | // |
| 653 | aFF.Orientation(TopAbs_FORWARD); |
| 654 | aMFx.Add(aFF); |
| 655 | aFF.Orientation(TopAbs_REVERSED); |
| 656 | aMFx.Add(aFF); |
| 657 | } |
| 658 | aMEF.Clear(); |
| 659 | BOPTools::MapShapesAndAncestors(aSolid, |
| 660 | TopAbs_EDGE, TopAbs_FACE, |
| 661 | aMEF); |
| 662 | // |
| 663 | // 2.1 Separate faces to process aMFP |
| 664 | aMFP.Clear(); |
| 665 | aItMF.Initialize(aMF); |
| 666 | for (; aItMF.More(); aItMF.Next()) { |
| 667 | const TopoDS_Face& aF=(*(TopoDS_Face*)(&aItMF.Key())); |
| 668 | if (!aMFx.Contains(aF)) { |
| 669 | if (BOPTools_AlgoTools::IsInternalFace(aF, |
| 670 | aSolid, |
| 671 | aMEF, |
| 672 | 1.e-14, |
| 673 | myContext)) { |
| 674 | aMFP.Add(aF); |
| 675 | } |
| 676 | } |
| 677 | } |
| 678 | aMFx.Clear(); |
| 679 | // |
| 680 | // 2.2 Make Internal Shells |
| 681 | aLSI.Clear(); |
| 682 | MakeInternalShells(aMFP, aLSI); |
| 683 | // |
| 684 | // 2.3 Add them to aSolid |
| 685 | aShellIt.Initialize(aLSI); |
| 686 | for (; aShellIt.More(); aShellIt.Next()) { |
| 687 | const TopoDS_Shape& aSI=aShellIt.Value(); |
| 688 | aBB.Add (aSolid, aSI); |
| 689 | } |
| 690 | // |
| 691 | // 2.4 Remove faces aMFP from aMF |
| 692 | aItMF.Initialize(aMFP); |
| 693 | for (; aItMF.More(); aItMF.Next()) { |
| 694 | const TopoDS_Shape& aF=aItMF.Key(); |
| 695 | aMF.Remove(aF); |
| 696 | } |
| 697 | // |
| 698 | aNbFI=aMF.Extent(); |
| 699 | if (!aNbFI) { |
| 700 | break; |
| 701 | } |
| 702 | } //for ( ; aSolidIt.More(); aSolidIt.Next()) { |
| 703 | if (aNbFI) { |
| 704 | TopoDS_Solid aSolid; |
| 705 | aBB.MakeSolid(aSolid); |
| 706 | // |
| 707 | MakeInternalShells(aMF, aLSI); |
| 708 | aShellIt.Initialize(aLSI); |
| 709 | for (; aShellIt.More(); aShellIt.Next()) { |
| 710 | const TopoDS_Shape& aSI=aShellIt.Value(); |
| 711 | aBB.Add (aSolid, aSI); |
| 712 | } |
| 713 | myAreas.Append(aSolid); |
| 714 | } |
| 715 | } |
| 716 | |
| 717 | //======================================================================= |
| 718 | //function : MakeInternalShells |
| 719 | //purpose : |
| 720 | //======================================================================= |
| 721 | void MakeInternalShells(const BOPCol_MapOfShape& theMF, |
| 722 | BOPCol_ListOfShape& theShells) |
| 723 | { |
| 724 | BOPCol_ListIteratorOfListOfShape aItF; |
| 725 | BRep_Builder aBB; |
| 726 | // |
| 727 | BOPCol_IndexedDataMapOfShapeListOfShape aMEF; |
| 728 | BOPCol_MapIteratorOfMapOfShape aItM; |
| 729 | BOPCol_MapOfShape aAddedFacesMap; |
| 730 | // |
| 731 | aItM.Initialize(theMF); |
| 732 | for (; aItM.More(); aItM.Next()) { |
| 733 | const TopoDS_Shape& aF=aItM.Key(); |
| 734 | BOPTools::MapShapesAndAncestors(aF, |
| 735 | TopAbs_EDGE, TopAbs_FACE, |
| 736 | aMEF); |
| 737 | } |
| 738 | // |
| 739 | aItM.Initialize(theMF); |
| 740 | for (; aItM.More(); aItM.Next()) { |
| 741 | TopoDS_Shape aFF=aItM.Key(); |
| 742 | if (!aAddedFacesMap.Add(aFF)) { |
| 743 | continue; |
| 744 | } |
| 745 | // |
| 746 | // make a new shell |
| 747 | TopoDS_Shell aShell; |
| 748 | aBB.MakeShell(aShell); |
| 749 | aFF.Orientation(TopAbs_INTERNAL); |
| 750 | aBB.Add(aShell, aFF); |
| 751 | // |
| 752 | TopoDS_Iterator aItAddedF (aShell); |
| 753 | for (; aItAddedF.More(); aItAddedF.Next()) { |
| 754 | const TopoDS_Shape& aF =aItAddedF.Value(); |
| 755 | // |
| 756 | TopExp_Explorer aEdgeExp(aF, TopAbs_EDGE); |
| 757 | for (; aEdgeExp.More(); aEdgeExp.Next()) { |
| 758 | const TopoDS_Shape& aE =aEdgeExp.Current(); |
| 759 | const BOPCol_ListOfShape& aLF=aMEF.FindFromKey(aE); |
| 760 | aItF.Initialize(aLF); |
| 761 | for (; aItF.More(); aItF.Next()) { |
| 762 | TopoDS_Shape aFL=aItF.Value(); |
| 763 | if (aAddedFacesMap.Add(aFL)){ |
| 764 | aFL.Orientation(TopAbs_INTERNAL); |
| 765 | aBB.Add(aShell, aFL); |
| 766 | } |
| 767 | } |
| 768 | } |
| 769 | } |
| 770 | theShells.Append(aShell); |
| 771 | } |
| 772 | } |
| 773 | //======================================================================= |
| 774 | //function : IsHole |
| 775 | //purpose : |
| 776 | //======================================================================= |
| 777 | Standard_Boolean IsHole(const TopoDS_Shape& theS2, |
| 778 | Handle(BOPInt_Context)& theContext) |
| 779 | { |
| 780 | TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2; |
| 781 | BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2); |
| 782 | // |
| 783 | aClsf.PerformInfinitePoint(::RealSmall()); |
| 784 | // |
| 785 | return (aClsf.State()==TopAbs_IN); |
| 786 | } |
| 787 | //======================================================================= |
| 788 | //function : IsInside |
| 789 | //purpose : |
| 790 | //======================================================================= |
| 791 | Standard_Boolean IsInside(const TopoDS_Shape& theS1, |
| 792 | const TopoDS_Shape& theS2, |
| 793 | Handle(BOPInt_Context)& theContext) |
| 794 | { |
| 795 | TopExp_Explorer aExp; |
| 796 | TopAbs_State aState; |
| 797 | // |
| 798 | TopoDS_Solid *pS2=(TopoDS_Solid *)&theS2; |
| 799 | // |
| 800 | aExp.Init(theS1, TopAbs_FACE); |
| 801 | if (!aExp.More()){ |
| 802 | BRepClass3d_SolidClassifier& aClsf=theContext->SolidClassifier(*pS2); |
| 803 | aClsf.PerformInfinitePoint(::RealSmall()); |
| 804 | aState=aClsf.State(); |
| 805 | } |
| 806 | else { |
| 807 | BOPCol_IndexedMapOfShape aBounds; |
| 808 | BOPTools::MapShapes(*pS2, TopAbs_EDGE, aBounds); |
| 809 | const TopoDS_Face& aF = (*(TopoDS_Face*)(&aExp.Current())); |
| 810 | aState=BOPTools_AlgoTools::ComputeState(aF, *pS2, 1.e-14, |
| 811 | aBounds, theContext); |
| 812 | } |
| 813 | return (aState==TopAbs_IN); |
| 814 | } |
| 815 | //======================================================================= |
| 816 | //function : IsGrowthShell |
| 817 | //purpose : |
| 818 | //======================================================================= |
| 819 | Standard_Boolean IsGrowthShell(const TopoDS_Shape& theShell, |
| 820 | const BOPCol_IndexedMapOfShape& theMHF) |
| 821 | { |
| 822 | Standard_Boolean bRet; |
| 823 | TopoDS_Iterator aIt; |
| 824 | // |
| 825 | bRet=Standard_False; |
| 826 | if (theMHF.Extent()) { |
| 827 | aIt.Initialize(theShell); |
| 828 | for(; aIt.More(); aIt.Next()) { |
| 829 | const TopoDS_Shape& aF=aIt.Value(); |
| 830 | if (theMHF.Contains(aF)) { |
| 831 | return !bRet; |
| 832 | } |
| 833 | } |
| 834 | } |
| 835 | return bRet; |
| 836 | } |