1 //=============================================================================
2 // File : NETGENPlugin_NETGEN_3D.cxx
3 // Moved here from SMESH_NETGEN_3D.cxx
4 // Created : lundi 27 Janvier 2003
5 // Author : Nadir BOUHAMOU (CEA)
7 // Copyright : CEA 2003
9 //=============================================================================
12 #include "NETGENPlugin_NETGEN_3D.hxx"
13 #include "SMESH_Gen.hxx"
14 #include "SMESH_Mesh.hxx"
16 #include "SMDS_MeshElement.hxx"
17 #include "SMDS_MeshNode.hxx"
18 #include "SMDS_FacePosition.hxx"
21 #include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
22 #include <TopTools_ListOfShape.hxx>
23 #include <TopTools_ListIteratorOfListOfShape.hxx>
24 #include <TColStd_ListIteratorOfListOfInteger.hxx>
26 #include <BRep_Tool.hxx>
27 #include <Geom_Surface.hxx>
28 #include <Geom_Curve.hxx>
29 #include <Geom2d_Curve.hxx>
31 #include "utilities.h"
39 //=============================================================================
43 //=============================================================================
45 NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D(int hypId, int studyId,
47 : SMESH_3D_Algo(hypId, studyId, gen)
49 MESSAGE("NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D");
51 // _shapeType = TopAbs_SOLID;
52 _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID);// 1 bit /shape type
53 // MESSAGE("_shapeType octal " << oct << _shapeType);
54 _compatibleHypothesis.push_back("MaxElementVolume");
56 _maxElementVolume = 0.;
58 _hypMaxElementVolume = NULL;
61 //=============================================================================
65 //=============================================================================
67 NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D()
69 MESSAGE("NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D");
72 //=============================================================================
76 //=============================================================================
78 bool NETGENPlugin_NETGEN_3D::CheckHypothesis
80 const TopoDS_Shape& aShape,
81 SMESH_Hypothesis::Hypothesis_Status& aStatus)
83 MESSAGE("NETGENPlugin_NETGEN_3D::CheckHypothesis");
85 _hypMaxElementVolume = NULL;
87 list<const SMESHDS_Hypothesis*>::const_iterator itl;
88 const SMESHDS_Hypothesis* theHyp;
90 const list<const SMESHDS_Hypothesis*>& hyps = GetUsedHypothesis(aMesh, aShape);
91 int nbHyp = hyps.size();
94 aStatus = SMESH_Hypothesis::HYP_MISSING;
95 return false; // can't work with no hypothesis
99 theHyp = (*itl); // use only the first hypothesis
101 string hypName = theHyp->GetName();
102 int hypId = theHyp->GetID();
107 if (hypName == "MaxElementVolume")
109 _hypMaxElementVolume = static_cast<const StdMeshers_MaxElementVolume*> (theHyp);
110 ASSERT(_hypMaxElementVolume);
111 _maxElementVolume = _hypMaxElementVolume->GetMaxVolume();
113 aStatus = SMESH_Hypothesis::HYP_OK;
116 aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
121 //=============================================================================
123 *Here we are going to use the NETGEN mesher
125 //=============================================================================
127 bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
128 const TopoDS_Shape& aShape)
130 MESSAGE("NETGENPlugin_NETGEN_3D::Compute with maxElmentsize = " << _maxElementVolume);
133 SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
134 SMESH_subMesh* theSubMesh = aMesh.GetSubMesh(aShape);
135 //const Handle(SMESHDS_SubMesh)& subMeshDS = theSubMesh->GetSubMeshDS();
137 map<int, const SMDS_MeshNode*> netgenToDS;
139 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Faces");
141 // check if all faces were meshed by a triangle mesher (here MESFISTO_2D)
143 vector<SMESH_subMesh*> meshFaces;
144 vector<TopoDS_Shape> shapeFaces;
146 for (TopExp_Explorer exp(aShape,TopAbs_FACE);exp.More();exp.Next())
148 TopoDS_Shape aShapeFace = exp.Current();
149 SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
151 int internal_size = meshFaces.size();
153 for (int i = 0;i<internal_size;i++)
155 if (aSubMesh == meshFaces[i]) index = 1;
157 if (index == 0) meshFaces.push_back(aSubMesh);
159 internal_size = shapeFaces.size();
161 for (int i = 0;i<internal_size;i++)
163 if (aShapeFace == shapeFaces[i]) index = 1;
165 if (index == 0) shapeFaces.push_back(aShapeFace);
168 int numberOfFaces = meshFaces.size();
169 int numberOfShapeFaces = shapeFaces.size();
171 SCRUTE(numberOfFaces);
172 SCRUTE(numberOfShapeFaces);
177 int NbTotOfNodesFaces = 0;
179 for (int i=0; i<numberOfFaces; i++)
181 TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
182 TopoDS_Shape aFace = shapeFaces[i];
183 SMESH_Algo* algoFace = _gen->GetAlgo(aMesh, aShapeFace);
184 string algoFaceName = algoFace->GetName();
185 SCRUTE(algoFaceName);
186 if (algoFaceName != "MEFISTO_2D")
188 SCRUTE(algoFaceName);
193 bool orientationMeshFace = (aFace.Orientation() == aShapeFace.Orientation());
195 const SMESHDS_SubMesh* aSubMeshDSFace = meshFaces[i]->GetSubMeshDS();
196 SCRUTE(aSubMeshDSFace);
198 int nbNodes = aSubMeshDSFace->NbNodes();
199 NbTotOfNodesFaces += nbNodes;
200 int nbTria = aSubMeshDSFace->NbElements();
201 NbTotOfTria += nbTria;
204 MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Face " << (i+1) << " has " << nbNodes << " face internal Nodes, " << nbTria << " triangles");
206 SCRUTE(orientationMeshFace);
208 if (orientationMeshFace)
210 MESSAGE("The mesh and face have the same orientation");
214 MESSAGE("The mesh and face have different orientations");
217 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSFace->GetNodes();
220 while(iteratorNodes->more())
223 const SMDS_MeshNode * node = iteratorNodes->next();
224 // int nodeId = node->GetID();
225 // double nodeX = node->X();
226 // double nodeY = node->Y();
227 // double nodeZ = node->Z();
228 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
233 SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
237 int numberOfDegeneratedTriangle = 0;
238 while(iteratorTriangle->more())
241 const SMDS_MeshElement * triangle = iteratorTriangle->next();
242 int triangleId = triangle->GetID();
244 SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
246 const SMDS_MeshNode * node1 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
247 double node1X = node1->X();
248 double node1Y = node1->Y();
249 double node1Z = node1->Z();
251 const SMDS_MeshNode * node2 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
252 double node2X = node2->X();
253 double node2Y = node2->Y();
254 double node2Z = node2->Z();
256 const SMDS_MeshNode * node3 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
257 double node3X = node3->X();
258 double node3Y = node3->Y();
259 double node3Z = node3->Z();
261 int triangleNode1 = node1->GetID();
262 int triangleNode2 = node2->GetID();
263 int triangleNode3 = node3->GetID();
265 // Compute the triangle surface
267 double vect1 = ((node2Y - node1Y)*(node3Z - node1Z) - (node2Z - node1Z)*(node3Y - node1Y));
268 double vect2 = - ((node2X - node1X)*(node3Z - node1Z) - (node2Z - node1Z)*(node3X - node1X));
269 double vect3 = ((node2X - node1X)*(node3Y - node1Y) - (node2Y - node1Y)*(node3X - node1X));
270 double epsilon = 1.0e-6;
272 bool triangleIsDegenerated = ((abs(vect1)<epsilon) && (abs(vect2)<epsilon) && (abs(vect3)<epsilon));
274 if (triangleIsDegenerated)
276 // MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3 << " is degenerated");
277 // MESSAGE("NODE -> ID = " << triangleNode1 << " X = " << node1X << " Y = " << node1Y << " Z = " << node1Z);
278 // MESSAGE("NODE -> ID = " << triangleNode2 << " X = " << node2X << " Y = " << node2Y << " Z = " << node2Z);
279 // MESSAGE("NODE -> ID = " << triangleNode3 << " X = " << node3X << " Y = " << node3Y << " Z = " << node3Z);
280 numberOfDegeneratedTriangle++;
284 // MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3 << " is normal");
288 if (numberOfDegeneratedTriangle > 0)
289 MESSAGE("WARNING THERE IS(ARE) " << numberOfDegeneratedTriangle << " degenerated triangle on this face");
297 SCRUTE(NbTotOfNodesFaces);
299 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Edges");
301 // check if all edges were meshed by a edge mesher (here Regular_1D)
303 vector<SMESH_subMesh*> meshEdges;
304 for (TopExp_Explorer exp(aShape,TopAbs_EDGE);exp.More();exp.Next())
306 SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
308 int internal_size = meshEdges.size();
310 for (int i = 0;i<internal_size;i++)
312 if (aSubMesh == meshEdges[i]) index = 1;
314 if (index == 0) meshEdges.push_back(aSubMesh);
317 int numberOfEdges = meshEdges.size();
318 SCRUTE(numberOfEdges);
322 int NbTotOfNodesEdges = 0;
325 for (int i=0; i<numberOfEdges; i++)
327 TopoDS_Shape aShapeEdge = meshEdges[i]->GetSubShape();
328 SMESH_Algo* algoEdge = _gen->GetAlgo(aMesh, aShapeEdge);
329 string algoEdgeName = algoEdge->GetName();
330 SCRUTE(algoEdgeName);
331 if (algoEdgeName != "Regular_1D")
333 SCRUTE(algoEdgeName);
338 const SMESHDS_SubMesh* aSubMeshDSEdge = meshEdges[i]->GetSubMeshDS();
339 SCRUTE(aSubMeshDSEdge);
341 int nbNodes = aSubMeshDSEdge->NbNodes();
342 NbTotOfNodesEdges += nbNodes;
343 int nbSegs = aSubMeshDSEdge->NbElements();
344 NbTotOfSegs += nbSegs;
346 MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Edge " << (i+1) << " has " << nbNodes << " edge internal Nodes, " << nbSegs << " segments");
348 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSEdge->GetNodes();
351 while(iteratorNodes->more())
354 const SMDS_MeshNode * node = iteratorNodes->next();
355 // int nodeId = node->GetID();
356 // double nodeX = node->X();
357 // double nodeY = node->Y();
358 // double nodeZ = node->Z();
359 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
365 SCRUTE(NbTotOfNodesEdges);
368 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Vertices");
370 vector<SMESH_subMesh*> meshVertices;
371 for (TopExp_Explorer exp(aShape,TopAbs_VERTEX);exp.More();exp.Next())
373 SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
375 int internal_size = meshVertices.size();
377 for (int i = 0;i<internal_size;i++)
379 if (aSubMesh == meshVertices[i]) index = 1;
381 if (index == 0) meshVertices.push_back(aSubMesh);
384 int numberOfVertices = meshVertices.size();
385 SCRUTE(numberOfVertices);
389 int NbTotOfNodesVertices = 0;
391 for (int i=0; i<numberOfVertices; i++)
393 TopoDS_Shape aShapeVertex = meshVertices[i]->GetSubShape();
395 const SMESHDS_SubMesh * aSubMeshDSVertex = meshVertices[i]->GetSubMeshDS();
396 SCRUTE(aSubMeshDSVertex);
398 int nbNodes = aSubMeshDSVertex->NbNodes();
399 NbTotOfNodesVertices += nbNodes;
401 MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Vertex " << (i+1) << " has " << nbNodes << " Nodes");
403 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSVertex->GetNodes();
406 while(iteratorNodes->more())
409 const SMDS_MeshNode * node = iteratorNodes->next();
410 // int nodeId = node->GetID();
411 // double nodeX = node->X();
412 // double nodeY = node->Y();
413 // double nodeZ = node->Z();
414 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
420 SCRUTE(NbTotOfNodesVertices);
422 MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Analysis of all shell mesh");
424 vector<SMESH_subMesh*> meshShells;
427 for (TopExp_Explorer exp(aShape,TopAbs_SHELL);exp.More();exp.Next())
429 SMESH_subMesh* aSubMesh = aMesh.GetSubMesh(exp.Current());
432 aShell = TopoDS::Shell(exp.Current());
433 meshShells.push_back(aSubMesh);
436 int numberOfShells = meshShells.size();
437 SCRUTE(numberOfShells);
439 if (numberOfShells == 1)
441 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Only one shell --> generation of the mesh using directly Netgen");
444 Prepare the Netgen surface mesh from the SMESHDS
447 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Prepare the Netgen surface mesh from the SMESHDS");
449 int spaceDimension = 3;
450 int nbNodesByTri = 3;
451 int nbNodesByTetra = 4;
453 int Netgen_NbOfNodes = NbTotOfNodesFaces +
455 NbTotOfNodesVertices;
456 int Netgen_NbOfTria = NbTotOfTria;
457 int Netgen_param2ndOrder = 0;
458 double Netgen_paramFine = 1.;
459 double Netgen_paramSize = _maxElementVolume;
461 SCRUTE(Netgen_NbOfNodes);
462 SCRUTE(Netgen_NbOfTria);
464 double * Netgen_Coordinates = new double [spaceDimension*
466 int * listNodeCoresNetgenSmesh = new int [Netgen_NbOfNodes];
467 int * Netgen_Connectivity = new int [nbNodesByTri*Netgen_NbOfTria];
468 double * Netgen_point = new double [spaceDimension];
469 int * Netgen_triangle = new int [nbNodesByTri];
470 int * Netgen_tetrahedron = new int [nbNodesByTetra];
472 for (int i=0; i<Netgen_NbOfTria; i++)
474 for (int j=0; j<nbNodesByTri; j++)
475 Netgen_Connectivity[i*nbNodesByTri+j] = 0;
478 double bigNumber = 1.e20;
480 for (int i=0; i<Netgen_NbOfNodes; i++)
482 listNodeCoresNetgenSmesh[i] = 0;
483 for (int j=0; j<spaceDimension; j++)
484 Netgen_Coordinates[i*spaceDimension+j] = bigNumber;
488 for (int i=0; i<numberOfVertices; i++)
490 const SMESHDS_SubMesh * aSubMeshDSVertex =
491 meshVertices[i]->GetSubMeshDS();
493 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSVertex->GetNodes();
495 while(iteratorNodes->more())
497 const SMDS_MeshNode * node = iteratorNodes->next();
498 int nodeId = node->GetID();
499 double nodeX = node->X();
500 double nodeY = node->Y();
501 double nodeZ = node->Z();
502 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
503 listNodeCoresNetgenSmesh[indexNodes] = nodeId;
504 int index = indexNodes*spaceDimension;
505 Netgen_Coordinates[index] = nodeX;
506 Netgen_Coordinates[index+1] = nodeY;
507 Netgen_Coordinates[index+2] = nodeZ;
508 netgenToDS[indexNodes] = node;
513 for (int i=0; i<numberOfEdges; i++)
515 const SMESHDS_SubMesh * aSubMeshDSEdge =
516 meshEdges[i]->GetSubMeshDS();
518 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSEdge->GetNodes();
520 while(iteratorNodes->more())
522 const SMDS_MeshNode * node = iteratorNodes->next();
523 int nodeId = node->GetID();
524 double nodeX = node->X();
525 double nodeY = node->Y();
526 double nodeZ = node->Z();
527 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
528 listNodeCoresNetgenSmesh[indexNodes] = node->GetID();
529 int index = indexNodes*spaceDimension;
530 Netgen_Coordinates[index] = node->X();
531 Netgen_Coordinates[index+1] = node->Y();
532 Netgen_Coordinates[index+2] = node->Z();
533 netgenToDS[indexNodes] = node;
538 for (int i=0; i<numberOfFaces; i++)
540 const SMESHDS_SubMesh * aSubMeshDSFace =
541 meshFaces[i]->GetSubMeshDS();
543 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSFace->GetNodes();
545 while(iteratorNodes->more())
547 const SMDS_MeshNode * node = iteratorNodes->next();
548 int nodeId = node->GetID();
549 double nodeX = node->X();
550 double nodeY = node->Y();
551 double nodeZ = node->Z();
552 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
553 listNodeCoresNetgenSmesh[indexNodes] = nodeId;
554 int index = indexNodes*spaceDimension;
555 Netgen_Coordinates[index] = nodeX;
556 Netgen_Coordinates[index+1] = nodeY;
557 Netgen_Coordinates[index+2] = nodeZ;
558 netgenToDS[indexNodes] = node;
565 for (int i=0; i<Netgen_NbOfNodes; i++)
567 ASSERT(listNodeCoresNetgenSmesh[i] != 0);
569 for (int j=0; j<Netgen_NbOfNodes && j!=i; j++)
570 ASSERT(listNodeCoresNetgenSmesh[i] != listNodeCoresNetgenSmesh[j]);
572 for (int j=0; j<spaceDimension; j++)
573 ASSERT(Netgen_Coordinates[i*spaceDimension+j] != bigNumber);
577 for (int i=0; i<numberOfFaces; i++)
579 const SMESHDS_SubMesh * aSubMeshDSFace =
580 meshFaces[i]->GetSubMeshDS();
582 TopoDS_Shape aFace = shapeFaces[i];
584 SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
586 TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
588 bool orientationMeshFace = (aFace.Orientation() == aShapeFace.Orientation());
590 SCRUTE(orientationMeshFace);
592 if (orientationMeshFace)
594 MESSAGE("The mesh and face have the same orientation");
596 while(iteratorTriangle->more())
598 const SMDS_MeshElement * triangle = iteratorTriangle->next();
599 int triangleId = triangle->GetID();
601 SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
603 int triangleNode1 = (triangleNodesIt->next())->GetID();
604 int triangleNode2 = (triangleNodesIt->next())->GetID();
605 int triangleNode3 = (triangleNodesIt->next())->GetID();
607 // MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3);
612 int index = indexTrias*nbNodesByTri;
614 for (int j=0; j<Netgen_NbOfNodes; j++)
618 if (triangleNode1 == listNodeCoresNetgenSmesh[j])
620 else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
622 else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
626 triangleNode1 = N1New;
627 triangleNode2 = N2New;
628 triangleNode3 = N3New;
630 Netgen_Connectivity[index] = triangleNode1;
631 Netgen_Connectivity[index+1] = triangleNode2;
632 Netgen_Connectivity[index+2] = triangleNode3;
639 MESSAGE("The mesh and face have different orientations");
641 while(iteratorTriangle->more())
643 const SMDS_MeshElement * triangle = iteratorTriangle->next();
644 int triangleId = triangle->GetID();
646 SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
648 int triangleNode1 = (triangleNodesIt->next())->GetID();
649 int triangleNode3 = (triangleNodesIt->next())->GetID();
650 int triangleNode2 = (triangleNodesIt->next())->GetID();
652 // MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3);
657 int index = indexTrias*nbNodesByTri;
659 for (int j=0; j<Netgen_NbOfNodes; j++)
663 if (triangleNode1 == listNodeCoresNetgenSmesh[j])
665 else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
667 else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
671 triangleNode1 = N1New;
672 triangleNode2 = N2New;
673 triangleNode3 = N3New;
675 Netgen_Connectivity[index] = triangleNode1;
676 Netgen_Connectivity[index+1] = triangleNode2;
677 Netgen_Connectivity[index+2] = triangleNode3;
686 int * nodesUsed = new int[Netgen_NbOfNodes];
688 for (int i=0; i<Netgen_NbOfNodes; i++) nodesUsed[i] = 0;
690 for (int i=0; i<Netgen_NbOfTria; i++)
691 for (int j=0; j<nbNodesByTri; j++)
693 int Nij = Netgen_Connectivity[i*nbNodesByTri+j];
695 ASSERT((Nij>=1) && (Nij<=Netgen_NbOfNodes));
697 nodesUsed[Nij-1] = 1;
698 Netgen_Connectivity[i*nbNodesByTri+j] = Nij;
701 for (int i=0; i<Netgen_NbOfNodes; i++)
703 ASSERT(nodesUsed[i] != 0);
709 Feed the Netgen surface mesh
712 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Feed the Netgen surface mesh");
714 Ng_Mesh * Netgen_mesh;
718 Netgen_mesh = Ng_NewMesh();
720 Ng_Meshing_Parameters Netgen_param;
722 for (int i=0; i<Netgen_NbOfNodes; i++)
724 for (int j=0; j<spaceDimension; j++)
725 Netgen_point[j] = Netgen_Coordinates[i*spaceDimension+j];
727 Ng_AddPoint(Netgen_mesh, Netgen_point);
730 for (int i=0; i<Netgen_NbOfTria; i++)
732 for (int j=0; j<nbNodesByTri; j++)
733 Netgen_triangle[j] = Netgen_Connectivity[i*nbNodesByTri+j];
735 Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
738 SCRUTE(Netgen_paramSize);
740 Netgen_param.secondorder = Netgen_param2ndOrder;
741 Netgen_param.fineness = Netgen_paramFine;
742 Netgen_param.maxh = Netgen_paramSize;
745 Generate the volume mesh
748 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Generate the volume mesh");
750 SCRUTE(Netgen_NbOfNodes);
751 SCRUTE(Netgen_NbOfTria);
753 SCRUTE(Ng_GetNP(Netgen_mesh));
754 SCRUTE(Ng_GetNE(Netgen_mesh));
755 SCRUTE(Ng_GetNSE(Netgen_mesh));
757 ASSERT(Netgen_NbOfNodes == Ng_GetNP(Netgen_mesh));
758 ASSERT(Ng_GetNE(Netgen_mesh) == 0);
759 ASSERT(Netgen_NbOfTria == Ng_GetNSE(Netgen_mesh));
763 status = Ng_GenerateVolumeMesh(Netgen_mesh, &Netgen_param);
767 int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
769 int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
771 SCRUTE(Netgen_NbOfNodesNew);
773 SCRUTE(Netgen_NbOfTetra);
775 if ((status != NG_OK) ||
776 (Netgen_NbOfNodesNew <= Netgen_NbOfNodes) ||
777 (Netgen_NbOfTetra <= 0))
779 MESSAGE("NETGENPlugin_NETGEN_3D::Compute The Volume Mesh Generation has failed ...");
783 Free the memory needed by to generate the Netgen Mesh
786 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Free the memory needed by to generate the Netgen Mesh");
788 delete [] Netgen_Coordinates;
789 delete [] Netgen_Connectivity;
790 delete [] Netgen_point;
791 delete [] Netgen_triangle;
792 delete [] Netgen_tetrahedron;
794 delete [] listNodeCoresNetgenSmesh;
796 Ng_DeleteMesh(Netgen_mesh);
802 MESSAGE("NETGENPlugin_NETGEN_3D::Compute End of Volume Mesh Generation");
805 double * Netgen_CoordinatesNew = new double [spaceDimension*Netgen_NbOfNodesNew];
806 int * Netgen_ConnectivityNew = new int [nbNodesByTetra*Netgen_NbOfTetra];
808 for (int i=0; i<Netgen_NbOfNodesNew; i++)
810 Ng_GetPoint(Netgen_mesh, (i+1), Netgen_point);
812 for (int j=0; j<spaceDimension; j++)
813 Netgen_CoordinatesNew[i*spaceDimension+j] = Netgen_point[j];
816 for (int i=0; i<Netgen_NbOfNodes; i++)
817 for (int j=0; j<spaceDimension; j++)
818 ASSERT(Netgen_CoordinatesNew[i*spaceDimension+j] == Netgen_Coordinates[i*spaceDimension+j])
820 for (int i=0; i<Netgen_NbOfTetra; i++)
822 Ng_GetVolumeElement(Netgen_mesh, (i+1), Netgen_tetrahedron);
824 for (int j=0; j<nbNodesByTetra; j++)
825 Netgen_ConnectivityNew[i*nbNodesByTetra+j] = Netgen_tetrahedron[j];
829 Feed back the SMESHDS with the generated Nodes and Volume Elements
832 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Feed back the SMESHDS with the generated Nodes and Volume Elements");
834 int NbTotOfNodesShell = Netgen_NbOfNodesNew - Netgen_NbOfNodes;
836 SCRUTE(NbTotOfNodesShell);
838 int * listNodeShellCoresNetgenSmesh = new int [NbTotOfNodesShell];
840 for (int i=0; i<NbTotOfNodesShell; i++)
841 listNodeShellCoresNetgenSmesh[i] = 0;
843 MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Adding the New Nodes to SMESHDS");
845 for (int i=0; i<NbTotOfNodesShell; i++)
847 int index = (i+Netgen_NbOfNodes)*spaceDimension;
849 SMDS_MeshNode * node =
850 meshDS->AddNode(Netgen_CoordinatesNew[index],
851 Netgen_CoordinatesNew[index+1],
852 Netgen_CoordinatesNew[index+2]);
854 meshDS->SetNodeInVolume(node, aShell);
856 index = i+Netgen_NbOfNodes;
857 netgenToDS[index] = node;
859 listNodeShellCoresNetgenSmesh[i] = node->GetID();
862 SCRUTE(Netgen_NbOfNodesNew);
864 SCRUTE(netgenToDS.size());
866 for (int i=0; i<NbTotOfNodesShell; i++)
868 ASSERT(listNodeShellCoresNetgenSmesh[i] != 0);
870 for (int j=0; j<NbTotOfNodesShell && j!=i; j++)
871 ASSERT(listNodeShellCoresNetgenSmesh[i] != listNodeShellCoresNetgenSmesh[j]);
874 MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Adding the New elements (Tetrahedrons) to the SMESHDS");
876 for (int i=0; i<Netgen_NbOfTetra; i++)
878 int index = i*nbNodesByTetra;
879 int tetraNode1 = Netgen_ConnectivityNew[index];
880 int tetraNode2 = Netgen_ConnectivityNew[index+1];
881 int tetraNode3 = Netgen_ConnectivityNew[index+2];
882 int tetraNode4 = Netgen_ConnectivityNew[index+3];
884 const SMDS_MeshNode * node1 = netgenToDS[tetraNode1-1];
885 const SMDS_MeshNode * node2 = netgenToDS[tetraNode2-1];
886 const SMDS_MeshNode * node3 = netgenToDS[tetraNode3-1];
887 const SMDS_MeshNode * node4 = netgenToDS[tetraNode4-1];
890 if (index <= Netgen_NbOfNodes)
891 tetraNode1 = listNodeCoresNetgenSmesh[index-1];
893 tetraNode1 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
896 if (index <= Netgen_NbOfNodes)
897 tetraNode2 = listNodeCoresNetgenSmesh[index-1];
899 tetraNode2 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
902 if (index <= Netgen_NbOfNodes)
903 tetraNode3 = listNodeCoresNetgenSmesh[index-1];
905 tetraNode3 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
908 if (index <= Netgen_NbOfNodes)
909 tetraNode4 = listNodeCoresNetgenSmesh[index-1];
911 tetraNode4 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
913 SMDS_MeshVolume * elt =
914 meshDS->AddVolume(node1,node2,node3,node4);
916 meshDS->SetMeshElementOnShape(elt, aShell);
920 Free the memory needed by to generate the Netgen Mesh
923 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Free the memory needed by to generate the Netgen Mesh");
925 delete [] Netgen_Coordinates;
926 delete [] Netgen_Connectivity;
927 delete [] Netgen_CoordinatesNew;
928 delete [] Netgen_ConnectivityNew;
929 delete [] Netgen_point;
930 delete [] Netgen_triangle;
931 delete [] Netgen_tetrahedron;
933 delete [] listNodeCoresNetgenSmesh;
934 delete [] listNodeShellCoresNetgenSmesh;
936 Ng_DeleteMesh(Netgen_mesh);
944 MESSAGE("NETGENPlugin_NETGEN_3D::Compute Verification of the Shell mesh");
946 TopoDS_Shape aShapeShell = meshShells[0]->GetSubShape();
947 SMESH_Algo* algoShell = _gen->GetAlgo(aMesh, aShapeShell);
948 string algoShellName = algoShell->GetName();
949 SCRUTE(algoShellName);
950 if (algoShellName != "NETGEN_3D")
952 SCRUTE(algoShellName);
957 const SMESHDS_SubMesh * aSubMeshDSShell = meshShells[0]->GetSubMeshDS();
958 SCRUTE(&aSubMeshDSShell);
960 int nbNodes = aSubMeshDSShell->NbNodes();
961 int nbTetra = aSubMeshDSShell->NbElements();
963 MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Shell has " << nbNodes << " shell internal Nodes, " << nbTetra << " tetrahedrons");
965 SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSShell->GetNodes();
973 while(iteratorNodes->more())
976 const SMDS_MeshNode * node = iteratorNodes->next();
977 int nodeId = node->GetID();
978 double nodeX = node->X();
979 double nodeY = node->Y();
980 double nodeZ = node->Z();
981 // MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
986 SMDS_ElemIteratorPtr iteratorTetra = aSubMeshDSShell->GetElements();
991 while(iteratorTetra->more())
994 const SMDS_MeshElement * tetra = iteratorTetra->next();
995 int tetraId = tetra->GetID();
997 SMDS_ElemIteratorPtr tetraNodesIt = tetra->nodesIterator();
999 int tetraNode1 = (tetraNodesIt->next())->GetID();
1000 int tetraNode2 = (tetraNodesIt->next())->GetID();
1001 int tetraNode3 = (tetraNodesIt->next())->GetID();
1002 int tetraNode4 = (tetraNodesIt->next())->GetID();
1004 // MESSAGE("TETRAHEDRON -> ID = " << tetraId << " N1 = " << tetraNode1 << " N2 = " << tetraNode2 << " N3 = " << tetraNode3 << " N4 = " << tetraNode4);
1013 SCRUTE(numberOfShells);
1014 MESSAGE("NETGENPlugin_NETGEN_3D::Compute ERROR More than one shell ????? ");
1022 //=============================================================================
1026 //=============================================================================
1028 ostream & NETGENPlugin_NETGEN_3D::SaveTo(ostream & save)
1033 //=============================================================================
1037 //=============================================================================
1039 istream & NETGENPlugin_NETGEN_3D::LoadFrom(istream & load)
1044 //=============================================================================
1048 //=============================================================================
1050 ostream & operator << (ostream & save, NETGENPlugin_NETGEN_3D & hyp)
1052 return hyp.SaveTo( save );
1055 //=============================================================================
1059 //=============================================================================
1061 istream & operator >> (istream & load, NETGENPlugin_NETGEN_3D & hyp)
1063 return hyp.LoadFrom( load );