| 1 | // Created on: 1995-06-20 |
| 2 | // Created by: Stagiaire Alain JOURDAIN |
| 3 | // Copyright (c) 1995-1999 Matra Datavision |
| 4 | // Copyright (c) 1999-2014 OPEN CASCADE SAS |
| 5 | // |
| 6 | // This file is part of Open CASCADE Technology software library. |
| 7 | // |
| 8 | // This library is free software; you can redistribute it and/or modify it under |
| 9 | // the terms of the GNU Lesser General Public License version 2.1 as published |
| 10 | // by the Free Software Foundation, with special exception defined in the file |
| 11 | // OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT |
| 12 | // distribution for complete text of the license and disclaimer of any warranty. |
| 13 | // |
| 14 | // Alternatively, this file may be used under the terms of Open CASCADE |
| 15 | // commercial license or contractual agreement. |
| 16 | |
| 17 | #include <BRepMesh_IncrementalMesh.hxx> |
| 18 | |
| 19 | #include <Precision.hxx> |
| 20 | #include <Standard_ErrorHandler.hxx> |
| 21 | |
| 22 | #include <BRepMesh_FaceChecker.hxx> |
| 23 | #include <BRepMesh_ShapeTool.hxx> |
| 24 | #include <BRepMesh_Edge.hxx> |
| 25 | #include <BRepMesh_PluginMacro.hxx> |
| 26 | |
| 27 | #include <Bnd_Box.hxx> |
| 28 | #include <BRep_Builder.hxx> |
| 29 | #include <BRep_Tool.hxx> |
| 30 | #include <BRepTools.hxx> |
| 31 | #include <BRepLib.hxx> |
| 32 | #include <BRepBndLib.hxx> |
| 33 | #include <BRepAdaptor_Curve.hxx> |
| 34 | |
| 35 | #include <Poly_Triangulation.hxx> |
| 36 | #include <Poly_Polygon3D.hxx> |
| 37 | #include <Poly_PolygonOnTriangulation.hxx> |
| 38 | |
| 39 | #include <TopoDS.hxx> |
| 40 | #include <TopoDS_Edge.hxx> |
| 41 | #include <TopoDS_Face.hxx> |
| 42 | #include <TopoDS_Shape.hxx> |
| 43 | #include <TopAbs.hxx> |
| 44 | #include <TopExp.hxx> |
| 45 | #include <TopExp_Explorer.hxx> |
| 46 | |
| 47 | #include <TopTools_ListIteratorOfListOfShape.hxx> |
| 48 | #include <TColgp_Array1OfPnt.hxx> |
| 49 | #include <TColgp_Array1OfPnt2d.hxx> |
| 50 | #include <TColStd_Array1OfReal.hxx> |
| 51 | #include <TopTools_HArray1OfShape.hxx> |
| 52 | #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx> |
| 53 | |
| 54 | #include <GCPnts_TangentialDeflection.hxx> |
| 55 | |
| 56 | #ifdef HAVE_TBB |
| 57 | // paralleling using Intel TBB |
| 58 | #include <tbb/parallel_for_each.h> |
| 59 | #endif |
| 60 | |
| 61 | namespace |
| 62 | { |
| 63 | //! Default flag to control parallelization for BRepMesh_IncrementalMesh |
| 64 | //! tool returned for Mesh Factory |
| 65 | static Standard_Boolean IS_IN_PARALLEL = Standard_False; |
| 66 | }; |
| 67 | |
| 68 | IMPLEMENT_STANDARD_HANDLE (BRepMesh_IncrementalMesh, BRepMesh_DiscretRoot) |
| 69 | IMPLEMENT_STANDARD_RTTIEXT(BRepMesh_IncrementalMesh, BRepMesh_DiscretRoot) |
| 70 | |
| 71 | //======================================================================= |
| 72 | //function : Default constructor |
| 73 | //purpose : |
| 74 | //======================================================================= |
| 75 | BRepMesh_IncrementalMesh::BRepMesh_IncrementalMesh() |
| 76 | : myRelative (Standard_False), |
| 77 | myInParallel (Standard_False) |
| 78 | { |
| 79 | } |
| 80 | |
| 81 | //======================================================================= |
| 82 | //function : Constructor |
| 83 | //purpose : |
| 84 | //======================================================================= |
| 85 | BRepMesh_IncrementalMesh::BRepMesh_IncrementalMesh( |
| 86 | const TopoDS_Shape& theShape, |
| 87 | const Standard_Real theLinDeflection, |
| 88 | const Standard_Boolean isRelative, |
| 89 | const Standard_Real theAngDeflection, |
| 90 | const Standard_Boolean isInParallel) |
| 91 | : myRelative (isRelative), |
| 92 | myInParallel(isInParallel) |
| 93 | { |
| 94 | myDeflection = theLinDeflection; |
| 95 | myAngle = theAngDeflection; |
| 96 | myShape = theShape; |
| 97 | |
| 98 | Perform(); |
| 99 | } |
| 100 | |
| 101 | //======================================================================= |
| 102 | //function : Destructor |
| 103 | //purpose : |
| 104 | //======================================================================= |
| 105 | BRepMesh_IncrementalMesh::~BRepMesh_IncrementalMesh() |
| 106 | { |
| 107 | } |
| 108 | |
| 109 | //======================================================================= |
| 110 | //function : init |
| 111 | //purpose : |
| 112 | //======================================================================= |
| 113 | void BRepMesh_IncrementalMesh::init() |
| 114 | { |
| 115 | myStatus = 0; |
| 116 | myModified = Standard_False; |
| 117 | |
| 118 | myEdgeDeflection.Clear(); |
| 119 | myFaces.clear(); |
| 120 | |
| 121 | setDone(); |
| 122 | |
| 123 | if (!isCorrectPolyData()) |
| 124 | BRepTools::Clean(myShape); |
| 125 | |
| 126 | Bnd_Box aBox; |
| 127 | BRepBndLib::Add(myShape, aBox, Standard_False); |
| 128 | |
| 129 | if (aBox.IsVoid()) |
| 130 | { |
| 131 | // Nothing to mesh. |
| 132 | myMesh.Nullify(); |
| 133 | return; |
| 134 | } |
| 135 | |
| 136 | BRepMesh_ShapeTool::BoxMaxDimension(aBox, myMaxShapeSize); |
| 137 | |
| 138 | myMesh = new BRepMesh_FastDiscret(myDeflection, myAngle, aBox, |
| 139 | Standard_True, Standard_True, myRelative, Standard_True, myInParallel); |
| 140 | |
| 141 | myMesh->InitSharedFaces(myShape); |
| 142 | } |
| 143 | |
| 144 | //======================================================================= |
| 145 | //function : isCorrectPolyData |
| 146 | //purpose : |
| 147 | //======================================================================= |
| 148 | Standard_Boolean BRepMesh_IncrementalMesh::isCorrectPolyData() |
| 149 | { |
| 150 | collectFaces(); |
| 151 | |
| 152 | BRepMesh_FaceChecker aFaceChecker(myInParallel); |
| 153 | |
| 154 | #ifdef HAVE_TBB |
| 155 | if (myInParallel) |
| 156 | { |
| 157 | // check faces in parallel threads using TBB |
| 158 | tbb::parallel_for_each(myFaces.begin(), myFaces.end(), aFaceChecker); |
| 159 | } |
| 160 | else |
| 161 | { |
| 162 | #endif |
| 163 | std::vector<TopoDS_Face>::iterator aFaceIt = myFaces.begin(); |
| 164 | for (; aFaceIt != myFaces.end(); aFaceIt++) |
| 165 | aFaceChecker(*aFaceIt); |
| 166 | #ifdef HAVE_TBB |
| 167 | } |
| 168 | #endif |
| 169 | |
| 170 | return aFaceChecker.IsValid(); |
| 171 | } |
| 172 | |
| 173 | //======================================================================= |
| 174 | //function : collectFaces |
| 175 | //purpose : |
| 176 | //======================================================================= |
| 177 | void BRepMesh_IncrementalMesh::collectFaces() |
| 178 | { |
| 179 | TopTools_ListOfShape aFaceList; |
| 180 | BRepLib::ReverseSortFaces(myShape, aFaceList); |
| 181 | TopTools_MapOfShape aFaceMap; |
| 182 | myFaces.reserve(aFaceList.Extent()); |
| 183 | |
| 184 | // make array of faces suitable for processing (excluding faces without surface) |
| 185 | TopLoc_Location aDummyLoc; |
| 186 | const TopLoc_Location aEmptyLoc; |
| 187 | TopTools_ListIteratorOfListOfShape aFaceIter(aFaceList); |
| 188 | for (; aFaceIter.More(); aFaceIter.Next()) |
| 189 | { |
| 190 | TopoDS_Shape aFaceNoLoc = aFaceIter.Value(); |
| 191 | aFaceNoLoc.Location(aEmptyLoc); |
| 192 | if (!aFaceMap.Add (aFaceNoLoc)) |
| 193 | continue; // already processed |
| 194 | |
| 195 | TopoDS_Face aFace = TopoDS::Face(aFaceIter.Value()); |
| 196 | const Handle(Geom_Surface)& aSurf = BRep_Tool::Surface(aFace, aDummyLoc); |
| 197 | if (aSurf.IsNull()) |
| 198 | continue; |
| 199 | |
| 200 | myFaces.push_back(aFace); |
| 201 | } |
| 202 | } |
| 203 | |
| 204 | //======================================================================= |
| 205 | //function : Perform |
| 206 | //purpose : |
| 207 | //======================================================================= |
| 208 | void BRepMesh_IncrementalMesh::Perform() |
| 209 | { |
| 210 | init(); |
| 211 | |
| 212 | if (myMesh.IsNull()) |
| 213 | return; |
| 214 | |
| 215 | update(); |
| 216 | } |
| 217 | |
| 218 | //======================================================================= |
| 219 | //function : update() |
| 220 | //purpose : |
| 221 | //======================================================================= |
| 222 | void BRepMesh_IncrementalMesh::update() |
| 223 | { |
| 224 | // Update edges data |
| 225 | TopExp_Explorer aExplorer(myShape, TopAbs_EDGE); |
| 226 | for (; aExplorer.More(); aExplorer.Next()) |
| 227 | { |
| 228 | const TopoDS_Edge& aEdge = TopoDS::Edge(aExplorer.Current()); |
| 229 | if(!BRep_Tool::IsGeometric(aEdge)) |
| 230 | continue; |
| 231 | |
| 232 | update(aEdge); |
| 233 | } |
| 234 | |
| 235 | // Update faces data |
| 236 | std::vector<TopoDS_Face>::iterator aFaceIt(myFaces.begin()); |
| 237 | for (; aFaceIt != myFaces.end(); aFaceIt++) |
| 238 | update(*aFaceIt); |
| 239 | |
| 240 | // Mesh faces |
| 241 | #ifdef HAVE_TBB |
| 242 | if (myInParallel) |
| 243 | { |
| 244 | tbb::parallel_for_each(myFaces.begin(), myFaces.end(), *myMesh); |
| 245 | } |
| 246 | else |
| 247 | { |
| 248 | #endif |
| 249 | for (aFaceIt = myFaces.begin(); aFaceIt != myFaces.end(); aFaceIt++) |
| 250 | myMesh->Process(*aFaceIt); |
| 251 | #ifdef HAVE_TBB |
| 252 | } |
| 253 | #endif |
| 254 | |
| 255 | commit(); |
| 256 | } |
| 257 | |
| 258 | //======================================================================= |
| 259 | //function : discretizeFreeEdges |
| 260 | //purpose : |
| 261 | //======================================================================= |
| 262 | void BRepMesh_IncrementalMesh::discretizeFreeEdges() |
| 263 | { |
| 264 | TopExp_Explorer aExplorer(myShape ,TopAbs_EDGE, TopAbs_FACE); |
| 265 | for (; aExplorer.More(); aExplorer.Next()) |
| 266 | { |
| 267 | const TopoDS_Edge& aEdge = TopoDS::Edge(aExplorer.Current()); |
| 268 | if(!BRep_Tool::IsGeometric(aEdge)) |
| 269 | continue; |
| 270 | |
| 271 | TopLoc_Location aLoc; |
| 272 | Standard_Real aEdgeDeflection = edgeDeflection(aEdge); |
| 273 | Handle(Poly_Polygon3D) aPoly3D = BRep_Tool::Polygon3D(aEdge, aLoc); |
| 274 | if (!aPoly3D.IsNull() && aPoly3D->Deflection() < 1.1 * aEdgeDeflection) |
| 275 | continue; |
| 276 | |
| 277 | BRepAdaptor_Curve aCurve(aEdge); |
| 278 | GCPnts_TangentialDeflection aDiscret(aCurve, aCurve.FirstParameter(), |
| 279 | aCurve.LastParameter(), myAngle, aEdgeDeflection, 2); |
| 280 | |
| 281 | Standard_Integer aNodesNb = aDiscret.NbPoints(); |
| 282 | TColgp_Array1OfPnt aNodes (1, aNodesNb); |
| 283 | TColStd_Array1OfReal aUVNodes(1, aNodesNb); |
| 284 | for (Standard_Integer i = 1; i <= aNodesNb; ++i) |
| 285 | { |
| 286 | aNodes (i) = aDiscret.Value(i); |
| 287 | aUVNodes(i) = aDiscret.Parameter(i); |
| 288 | } |
| 289 | |
| 290 | aPoly3D = new Poly_Polygon3D(aNodes, aUVNodes); |
| 291 | aPoly3D->Deflection(myDeflection); |
| 292 | |
| 293 | BRep_Builder aBuilder; |
| 294 | aBuilder.UpdateEdge(aEdge, aPoly3D); |
| 295 | } |
| 296 | } |
| 297 | |
| 298 | //======================================================================= |
| 299 | //function : edgeDeflection |
| 300 | //purpose : |
| 301 | //======================================================================= |
| 302 | Standard_Real BRepMesh_IncrementalMesh::edgeDeflection( |
| 303 | const TopoDS_Edge& theEdge) |
| 304 | { |
| 305 | if (myEdgeDeflection.IsBound(theEdge)) |
| 306 | return myEdgeDeflection(theEdge); |
| 307 | |
| 308 | Standard_Real aEdgeDeflection; |
| 309 | if (myRelative) |
| 310 | { |
| 311 | Standard_Real aScale; |
| 312 | aEdgeDeflection = BRepMesh_ShapeTool::RelativeEdgeDeflection(theEdge, |
| 313 | myDeflection, myMaxShapeSize, aScale); |
| 314 | } |
| 315 | else |
| 316 | aEdgeDeflection = myDeflection; |
| 317 | |
| 318 | myEdgeDeflection.Bind(theEdge, aEdgeDeflection); |
| 319 | return aEdgeDeflection; |
| 320 | } |
| 321 | |
| 322 | //======================================================================= |
| 323 | //function : faceDeflection |
| 324 | //purpose : |
| 325 | //======================================================================= |
| 326 | Standard_Real BRepMesh_IncrementalMesh::faceDeflection( |
| 327 | const TopoDS_Face& theFace) |
| 328 | { |
| 329 | if (!myRelative) |
| 330 | return myDeflection; |
| 331 | |
| 332 | Standard_Integer aEdgesNb = 0; |
| 333 | Standard_Real aFaceDeflection = 0.; |
| 334 | |
| 335 | TopExp_Explorer aEdgeIt(theFace, TopAbs_EDGE); |
| 336 | for (; aEdgeIt.More(); aEdgeIt.Next(), ++aEdgesNb) |
| 337 | { |
| 338 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 339 | aFaceDeflection += edgeDeflection(aEdge); |
| 340 | } |
| 341 | |
| 342 | return (aEdgesNb == 0) ? myDeflection : (aFaceDeflection / aEdgesNb); |
| 343 | } |
| 344 | |
| 345 | //======================================================================= |
| 346 | //function : update(edge) |
| 347 | //purpose : |
| 348 | //======================================================================= |
| 349 | void BRepMesh_IncrementalMesh::update(const TopoDS_Edge& theEdge) |
| 350 | { |
| 351 | Standard_Integer aPolyIndex = 1; |
| 352 | Standard_Real aEdgeDeflection = edgeDeflection(theEdge); |
| 353 | Handle(Poly_PolygonOnTriangulation) aPolygon; |
| 354 | do |
| 355 | { |
| 356 | TopLoc_Location aLoc; |
| 357 | Handle(Poly_Triangulation) aTriangulation; |
| 358 | BRep_Tool::PolygonOnTriangulation(theEdge, aPolygon, |
| 359 | aTriangulation, aLoc, aPolyIndex++); |
| 360 | |
| 361 | if (!aTriangulation.IsNull() && !aPolygon.IsNull()) |
| 362 | { |
| 363 | if (aPolygon->Deflection() < 1.1 * aEdgeDeflection && |
| 364 | aPolygon->HasParameters()) |
| 365 | { |
| 366 | continue; |
| 367 | } |
| 368 | |
| 369 | myModified = Standard_True; |
| 370 | BRepMesh_ShapeTool::NullifyEdge(theEdge, aTriangulation, aLoc); |
| 371 | } |
| 372 | |
| 373 | if (!myEmptyEdges.IsBound(theEdge)) |
| 374 | myEmptyEdges.Bind(theEdge, BRepMesh::MapOfTriangulation()); |
| 375 | |
| 376 | if (!aTriangulation.IsNull()) |
| 377 | myEmptyEdges(theEdge).Add(aTriangulation); |
| 378 | } |
| 379 | while (!aPolygon.IsNull()); |
| 380 | } |
| 381 | |
| 382 | //======================================================================= |
| 383 | //function : isToBeMeshed |
| 384 | //purpose : |
| 385 | //======================================================================= |
| 386 | Standard_Boolean BRepMesh_IncrementalMesh::toBeMeshed( |
| 387 | const TopoDS_Face& theFace, |
| 388 | const Standard_Boolean isWithCheck) |
| 389 | { |
| 390 | TopLoc_Location aLoc; |
| 391 | Handle(Poly_Triangulation) aTriangulation = |
| 392 | BRep_Tool::Triangulation(theFace, aLoc); |
| 393 | |
| 394 | if (aTriangulation.IsNull()) |
| 395 | return Standard_True; |
| 396 | |
| 397 | if (isWithCheck) |
| 398 | { |
| 399 | Standard_Real aFaceDeflection = faceDeflection(theFace); |
| 400 | if (aTriangulation->Deflection() < 1.1 * aFaceDeflection) |
| 401 | { |
| 402 | Standard_Boolean isEdgesConsistent = Standard_True; |
| 403 | TopExp_Explorer aEdgeIt(theFace, TopAbs_EDGE); |
| 404 | for (; aEdgeIt.More() && isEdgesConsistent; aEdgeIt.Next()) |
| 405 | { |
| 406 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 407 | if (!myEmptyEdges.IsBound(aEdge)) |
| 408 | continue; |
| 409 | |
| 410 | BRepMesh::MapOfTriangulation& aTriMap = myEmptyEdges(aEdge); |
| 411 | isEdgesConsistent &= !aTriMap.IsEmpty() && !aTriMap.Contains(aTriangulation); |
| 412 | } |
| 413 | |
| 414 | if (isEdgesConsistent) |
| 415 | return Standard_False; |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | // Nullify edges |
| 420 | TopExp_Explorer aEdgeIt(theFace, TopAbs_EDGE); |
| 421 | for (; aEdgeIt.More(); aEdgeIt.Next()) |
| 422 | { |
| 423 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 424 | BRepMesh_ShapeTool::NullifyEdge(aEdge, aTriangulation, aLoc); |
| 425 | } |
| 426 | |
| 427 | BRepMesh_ShapeTool::NullifyFace(theFace); |
| 428 | return Standard_True; |
| 429 | } |
| 430 | |
| 431 | //======================================================================= |
| 432 | //function : update(face) |
| 433 | //purpose : |
| 434 | //======================================================================= |
| 435 | void BRepMesh_IncrementalMesh::update(const TopoDS_Face& theFace) |
| 436 | { |
| 437 | if (!toBeMeshed(theFace, Standard_True)) |
| 438 | return; |
| 439 | |
| 440 | myModified = Standard_True; |
| 441 | Standard_Integer aStatus = myMesh->Add(theFace); |
| 442 | |
| 443 | myStatus |= aStatus; |
| 444 | if (aStatus != BRepMesh_ReMesh) |
| 445 | return; |
| 446 | |
| 447 | BRepMesh::MapOfShape aUsedFaces; |
| 448 | aUsedFaces.Add(theFace); |
| 449 | |
| 450 | const TopTools_IndexedDataMapOfShapeListOfShape& aMapOfSharedFaces = |
| 451 | myMesh->SharedFaces(); |
| 452 | |
| 453 | TopExp_Explorer aEdgeIt(theFace, TopAbs_EDGE); |
| 454 | for (; aEdgeIt.More(); aEdgeIt.Next()) |
| 455 | { |
| 456 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Current()); |
| 457 | if (aMapOfSharedFaces.FindIndex(aEdge) == 0) |
| 458 | continue; |
| 459 | |
| 460 | const TopTools_ListOfShape& aSharedFaces = aMapOfSharedFaces.FindFromKey(aEdge); |
| 461 | TopTools_ListIteratorOfListOfShape aSharedFaceIt(aSharedFaces); |
| 462 | for (; aSharedFaceIt.More(); aSharedFaceIt.Next()) |
| 463 | { |
| 464 | const TopoDS_Face& aFace = TopoDS::Face(aSharedFaceIt.Value()); |
| 465 | if (aUsedFaces.Contains(aFace)) |
| 466 | continue; |
| 467 | |
| 468 | aUsedFaces.Add(aFace); |
| 469 | toBeMeshed(aFace, Standard_False); |
| 470 | |
| 471 | myStatus |= myMesh->Add(aFace); |
| 472 | } |
| 473 | } |
| 474 | } |
| 475 | |
| 476 | //======================================================================= |
| 477 | //function : commit |
| 478 | //purpose : |
| 479 | //======================================================================= |
| 480 | void BRepMesh_IncrementalMesh::commit() |
| 481 | { |
| 482 | std::vector<TopoDS_Face>::iterator aFaceIt(myFaces.begin()); |
| 483 | for (; aFaceIt != myFaces.end(); aFaceIt++) |
| 484 | commitEdges(*aFaceIt); |
| 485 | |
| 486 | discretizeFreeEdges(); |
| 487 | } |
| 488 | |
| 489 | //======================================================================= |
| 490 | //function : commitEdges |
| 491 | //purpose : |
| 492 | //======================================================================= |
| 493 | void BRepMesh_IncrementalMesh::commitEdges(const TopoDS_Face& theFace) |
| 494 | { |
| 495 | TopoDS_Face aFace = theFace; |
| 496 | aFace.Orientation(TopAbs_FORWARD); |
| 497 | |
| 498 | Handle(BRepMesh_FaceAttribute) aFaceAttribute; |
| 499 | if (!myMesh->GetFaceAttribute(aFace, aFaceAttribute)) |
| 500 | return; |
| 501 | |
| 502 | if (!aFaceAttribute->IsValid()) |
| 503 | { |
| 504 | myStatus |= aFaceAttribute->GetStatus(); |
| 505 | return; |
| 506 | } |
| 507 | |
| 508 | TopLoc_Location aLoc = aFace.Location(); |
| 509 | Handle(Poly_Triangulation) aTriangulation = BRep_Tool::Triangulation(aFace, aLoc); |
| 510 | |
| 511 | if (aTriangulation.IsNull()) |
| 512 | { |
| 513 | aFaceAttribute->Clear(); |
| 514 | return; |
| 515 | } |
| 516 | |
| 517 | try |
| 518 | { |
| 519 | OCC_CATCH_SIGNALS |
| 520 | |
| 521 | // Store discretization of edges |
| 522 | BRepMesh::HDMapOfShapePairOfPolygon& aInternalEdges = aFaceAttribute->ChangeInternalEdges(); |
| 523 | BRepMesh::DMapOfShapePairOfPolygon::Iterator aEdgeIt(*aInternalEdges); |
| 524 | for (; aEdgeIt.More(); aEdgeIt.Next()) |
| 525 | { |
| 526 | const TopoDS_Edge& aEdge = TopoDS::Edge(aEdgeIt.Key()); |
| 527 | const BRepMesh_PairOfPolygon& aPolyPair = aEdgeIt.Value(); |
| 528 | const Handle(Poly_PolygonOnTriangulation)& aPolygon1 = aPolyPair.First(); |
| 529 | const Handle(Poly_PolygonOnTriangulation)& aPolygon2 = aPolyPair.Last(); |
| 530 | |
| 531 | if (aPolygon1 == aPolygon2) |
| 532 | BRepMesh_ShapeTool::UpdateEdge(aEdge, aPolygon1, aTriangulation, aLoc); |
| 533 | else |
| 534 | BRepMesh_ShapeTool::UpdateEdge(aEdge, aPolygon1, aPolygon2, aTriangulation, aLoc); |
| 535 | } |
| 536 | |
| 537 | aFaceAttribute->Clear(); |
| 538 | } |
| 539 | catch (Standard_Failure) |
| 540 | { |
| 541 | myStatus |= BRepMesh_Failure; |
| 542 | } |
| 543 | } |
| 544 | |
| 545 | //======================================================================= |
| 546 | //function : Discret |
| 547 | //purpose : |
| 548 | //======================================================================= |
| 549 | Standard_Integer BRepMesh_IncrementalMesh::Discret( |
| 550 | const TopoDS_Shape& theShape, |
| 551 | const Standard_Real theDeflection, |
| 552 | const Standard_Real theAngle, |
| 553 | BRepMesh_DiscretRoot* &theAlgo) |
| 554 | { |
| 555 | BRepMesh_IncrementalMesh* anAlgo = new BRepMesh_IncrementalMesh(); |
| 556 | anAlgo->SetDeflection(theDeflection); |
| 557 | anAlgo->SetAngle (theAngle); |
| 558 | anAlgo->SetShape (theShape); |
| 559 | anAlgo->SetParallel (IS_IN_PARALLEL); |
| 560 | theAlgo = anAlgo; |
| 561 | return 0; // no error |
| 562 | } |
| 563 | |
| 564 | //======================================================================= |
| 565 | //function : IsParallelDefault |
| 566 | //purpose : |
| 567 | //======================================================================= |
| 568 | Standard_Boolean BRepMesh_IncrementalMesh::IsParallelDefault() |
| 569 | { |
| 570 | #ifdef HAVE_TBB |
| 571 | return IS_IN_PARALLEL; |
| 572 | #else |
| 573 | // no alternative parallelization yet - flag has no meaning |
| 574 | return Standard_False; |
| 575 | #endif |
| 576 | } |
| 577 | |
| 578 | //======================================================================= |
| 579 | //function : Discret |
| 580 | //purpose : |
| 581 | //======================================================================= |
| 582 | void BRepMesh_IncrementalMesh::SetParallelDefault( |
| 583 | const Standard_Boolean theInParallel) |
| 584 | { |
| 585 | IS_IN_PARALLEL = theInParallel; |
| 586 | } |
| 587 | |
| 588 | //! Export Mesh Plugin entry function |
| 589 | DISCRETPLUGIN(BRepMesh_IncrementalMesh) |