--- /dev/null
+//=============================================================================
+// File : NETGENPlugin_NETGEN_3D.cxx
+// Moved here from SMESH_NETGEN_3D.cxx
+// Created : lundi 27 Janvier 2003
+// Author : Nadir BOUHAMOU (CEA)
+// Project : SALOME
+// Copyright : CEA 2003
+// $Header$
+//=============================================================================
+using namespace std;
+
+#include "NETGENPlugin_NETGEN_3D.hxx"
+#include "SMESH_Gen.hxx"
+#include "SMESH_Mesh.hxx"
+
+#include "SMDS_MeshElement.hxx"
+#include "SMDS_MeshNode.hxx"
+#include "SMDS_FacePosition.hxx"
+
+#include <TopExp.hxx>
+#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
+#include <TopTools_ListOfShape.hxx>
+#include <TopTools_ListIteratorOfListOfShape.hxx>
+#include <TColStd_ListIteratorOfListOfInteger.hxx>
+
+#include <BRep_Tool.hxx>
+#include <Geom_Surface.hxx>
+#include <Geom_Curve.hxx>
+#include <Geom2d_Curve.hxx>
+
+#include "utilities.h"
+
+/*
+ Netgen include files
+*/
+
+#include "nglib.h"
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D(int hypId, int studyId,
+ SMESH_Gen* gen)
+ : SMESH_3D_Algo(hypId, studyId, gen)
+{
+ MESSAGE("NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D");
+ _name = "NETGEN_3D";
+// _shapeType = TopAbs_SOLID;
+ _shapeType = (1 << TopAbs_SHELL) | (1 << TopAbs_SOLID);// 1 bit /shape type
+// MESSAGE("_shapeType octal " << oct << _shapeType);
+ _compatibleHypothesis.push_back("MaxElementVolume");
+
+ _maxElementVolume = 0.;
+
+ _hypMaxElementVolume = NULL;
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D()
+{
+ MESSAGE("NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D");
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+bool NETGENPlugin_NETGEN_3D::CheckHypothesis
+ (SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ SMESH_Hypothesis::Hypothesis_Status& aStatus)
+{
+ MESSAGE("NETGENPlugin_NETGEN_3D::CheckHypothesis");
+
+ _hypMaxElementVolume = NULL;
+
+ list<const SMESHDS_Hypothesis*>::const_iterator itl;
+ const SMESHDS_Hypothesis* theHyp;
+
+ const list<const SMESHDS_Hypothesis*>& hyps = GetUsedHypothesis(aMesh, aShape);
+ int nbHyp = hyps.size();
+ if (!nbHyp)
+ {
+ aStatus = SMESH_Hypothesis::HYP_MISSING;
+ return false; // can't work with no hypothesis
+ }
+
+ itl = hyps.begin();
+ theHyp = (*itl); // use only the first hypothesis
+
+ string hypName = theHyp->GetName();
+ int hypId = theHyp->GetID();
+ SCRUTE(hypName);
+
+ bool isOk = false;
+
+ if (hypName == "MaxElementVolume")
+ {
+ _hypMaxElementVolume = static_cast<const StdMeshers_MaxElementVolume*> (theHyp);
+ ASSERT(_hypMaxElementVolume);
+ _maxElementVolume = _hypMaxElementVolume->GetMaxVolume();
+ isOk =true;
+ aStatus = SMESH_Hypothesis::HYP_OK;
+ }
+ else
+ aStatus = SMESH_Hypothesis::HYP_INCOMPATIBLE;
+
+ return isOk;
+}
+
+//=============================================================================
+/*!
+ *Here we are going to use the NETGEN mesher
+ */
+//=============================================================================
+
+bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape)
+{
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute with maxElmentsize = " << _maxElementVolume);
+
+ bool isOk = false;
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+ SMESH_subMesh* theSubMesh = aMesh.GetSubMesh(aShape);
+ //const Handle(SMESHDS_SubMesh)& subMeshDS = theSubMesh->GetSubMeshDS();
+
+ map<int, const SMDS_MeshNode*> netgenToDS;
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Faces");
+
+ // check if all faces were meshed by a triangle mesher (here MESFISTO_2D)
+
+ vector<SMESH_subMesh*> meshFaces;
+ vector<TopoDS_Shape> shapeFaces;
+
+ for (TopExp_Explorer exp(aShape,TopAbs_FACE);exp.More();exp.Next())
+ {
+ TopoDS_Shape aShapeFace = exp.Current();
+ SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
+ ASSERT (aSubMesh);
+ int internal_size = meshFaces.size();
+ int index = 0;
+ for (int i = 0;i<internal_size;i++)
+ {
+ if (aSubMesh == meshFaces[i]) index = 1;
+ }
+ if (index == 0) meshFaces.push_back(aSubMesh);
+
+ internal_size = shapeFaces.size();
+ index = 0;
+ for (int i = 0;i<internal_size;i++)
+ {
+ if (aShapeFace == shapeFaces[i]) index = 1;
+ }
+ if (index == 0) shapeFaces.push_back(aShapeFace);
+ }
+
+ int numberOfFaces = meshFaces.size();
+ int numberOfShapeFaces = shapeFaces.size();
+
+ SCRUTE(numberOfFaces);
+ SCRUTE(numberOfShapeFaces);
+
+ MESSAGE("---");
+
+ int NbTotOfTria = 0;
+ int NbTotOfNodesFaces = 0;
+
+ for (int i=0; i<numberOfFaces; i++)
+ {
+ TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
+ TopoDS_Shape aFace = shapeFaces[i];
+ SMESH_Algo* algoFace = _gen->GetAlgo(aMesh, aShapeFace);
+ string algoFaceName = algoFace->GetName();
+ SCRUTE(algoFaceName);
+ if (algoFaceName != "MEFISTO_2D")
+ {
+ SCRUTE(algoFaceName);
+ ASSERT(0);
+ return false;
+ }
+
+ bool orientationMeshFace = (aFace.Orientation() == aShapeFace.Orientation());
+
+ const SMESHDS_SubMesh* aSubMeshDSFace = meshFaces[i]->GetSubMeshDS();
+ SCRUTE(aSubMeshDSFace);
+
+ int nbNodes = aSubMeshDSFace->NbNodes();
+ NbTotOfNodesFaces += nbNodes;
+ int nbTria = aSubMeshDSFace->NbElements();
+ NbTotOfTria += nbTria;
+ int index = 0;
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Face " << (i+1) << " has " << nbNodes << " face internal Nodes, " << nbTria << " triangles");
+
+ SCRUTE(orientationMeshFace);
+
+ if (orientationMeshFace)
+ {
+ MESSAGE("The mesh and face have the same orientation");
+ }
+ else
+ {
+ MESSAGE("The mesh and face have different orientations");
+ }
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSFace->GetNodes();
+ SCRUTE(nbNodes);
+ index = 0;
+ while(iteratorNodes->more())
+ {
+ index++;
+ const SMDS_MeshNode * node = iteratorNodes->next();
+// int nodeId = node->GetID();
+// double nodeX = node->X();
+// double nodeY = node->Y();
+// double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ }
+
+ SCRUTE(index);
+
+ SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
+
+ SCRUTE(nbTria);
+ index = 0;
+ int numberOfDegeneratedTriangle = 0;
+ while(iteratorTriangle->more())
+ {
+ index++;
+ const SMDS_MeshElement * triangle = iteratorTriangle->next();
+ int triangleId = triangle->GetID();
+
+ SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
+
+ const SMDS_MeshNode * node1 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
+ double node1X = node1->X();
+ double node1Y = node1->Y();
+ double node1Z = node1->Z();
+
+ const SMDS_MeshNode * node2 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
+ double node2X = node2->X();
+ double node2Y = node2->Y();
+ double node2Z = node2->Z();
+
+ const SMDS_MeshNode * node3 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
+ double node3X = node3->X();
+ double node3Y = node3->Y();
+ double node3Z = node3->Z();
+
+ int triangleNode1 = node1->GetID();
+ int triangleNode2 = node2->GetID();
+ int triangleNode3 = node3->GetID();
+
+ // Compute the triangle surface
+
+ double vect1 = ((node2Y - node1Y)*(node3Z - node1Z) - (node2Z - node1Z)*(node3Y - node1Y));
+ double vect2 = - ((node2X - node1X)*(node3Z - node1Z) - (node2Z - node1Z)*(node3X - node1X));
+ double vect3 = ((node2X - node1X)*(node3Y - node1Y) - (node2Y - node1Y)*(node3X - node1X));
+ double epsilon = 1.0e-6;
+
+ bool triangleIsDegenerated = ((abs(vect1)<epsilon) && (abs(vect2)<epsilon) && (abs(vect3)<epsilon));
+
+ if (triangleIsDegenerated)
+ {
+// MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3 << " is degenerated");
+// MESSAGE("NODE -> ID = " << triangleNode1 << " X = " << node1X << " Y = " << node1Y << " Z = " << node1Z);
+// MESSAGE("NODE -> ID = " << triangleNode2 << " X = " << node2X << " Y = " << node2Y << " Z = " << node2Z);
+// MESSAGE("NODE -> ID = " << triangleNode3 << " X = " << node3X << " Y = " << node3Y << " Z = " << node3Z);
+ numberOfDegeneratedTriangle++;
+ }
+ else
+ {
+// MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3 << " is normal");
+ }
+ }
+
+ if (numberOfDegeneratedTriangle > 0)
+ MESSAGE("WARNING THERE IS(ARE) " << numberOfDegeneratedTriangle << " degenerated triangle on this face");
+
+ SCRUTE(index);
+ }
+
+
+
+ SCRUTE(NbTotOfTria);
+ SCRUTE(NbTotOfNodesFaces);
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Edges");
+
+ // check if all edges were meshed by a edge mesher (here Regular_1D)
+
+ vector<SMESH_subMesh*> meshEdges;
+ for (TopExp_Explorer exp(aShape,TopAbs_EDGE);exp.More();exp.Next())
+ {
+ SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
+ ASSERT (aSubMesh);
+ int internal_size = meshEdges.size();
+ int index = 0;
+ for (int i = 0;i<internal_size;i++)
+ {
+ if (aSubMesh == meshEdges[i]) index = 1;
+ }
+ if (index == 0) meshEdges.push_back(aSubMesh);
+ }
+
+ int numberOfEdges = meshEdges.size();
+ SCRUTE(numberOfEdges);
+
+ MESSAGE("---");
+
+ int NbTotOfNodesEdges = 0;
+ int NbTotOfSegs = 0;
+
+ for (int i=0; i<numberOfEdges; i++)
+ {
+ TopoDS_Shape aShapeEdge = meshEdges[i]->GetSubShape();
+ SMESH_Algo* algoEdge = _gen->GetAlgo(aMesh, aShapeEdge);
+ string algoEdgeName = algoEdge->GetName();
+ SCRUTE(algoEdgeName);
+ if (algoEdgeName != "Regular_1D")
+ {
+ SCRUTE(algoEdgeName);
+ ASSERT(0);
+ return false;
+ }
+
+ const SMESHDS_SubMesh* aSubMeshDSEdge = meshEdges[i]->GetSubMeshDS();
+ SCRUTE(aSubMeshDSEdge);
+
+ int nbNodes = aSubMeshDSEdge->NbNodes();
+ NbTotOfNodesEdges += nbNodes;
+ int nbSegs = aSubMeshDSEdge->NbElements();
+ NbTotOfSegs += nbSegs;
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Edge " << (i+1) << " has " << nbNodes << " edge internal Nodes, " << nbSegs << " segments");
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSEdge->GetNodes();
+ SCRUTE(nbNodes);
+ int index = 0;
+ while(iteratorNodes->more())
+ {
+ index++;
+ const SMDS_MeshNode * node = iteratorNodes->next();
+// int nodeId = node->GetID();
+// double nodeX = node->X();
+// double nodeY = node->Y();
+// double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ }
+
+ SCRUTE(index);
+ }
+
+ SCRUTE(NbTotOfNodesEdges);
+ SCRUTE(NbTotOfSegs);
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Checking the mesh Vertices");
+
+ vector<SMESH_subMesh*> meshVertices;
+ for (TopExp_Explorer exp(aShape,TopAbs_VERTEX);exp.More();exp.Next())
+ {
+ SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
+ ASSERT (aSubMesh);
+ int internal_size = meshVertices.size();
+ int index = 0;
+ for (int i = 0;i<internal_size;i++)
+ {
+ if (aSubMesh == meshVertices[i]) index = 1;
+ }
+ if (index == 0) meshVertices.push_back(aSubMesh);
+ }
+
+ int numberOfVertices = meshVertices.size();
+ SCRUTE(numberOfVertices);
+
+ MESSAGE("---");
+
+ int NbTotOfNodesVertices = 0;
+
+ for (int i=0; i<numberOfVertices; i++)
+ {
+ TopoDS_Shape aShapeVertex = meshVertices[i]->GetSubShape();
+
+ const SMESHDS_SubMesh * aSubMeshDSVertex = meshVertices[i]->GetSubMeshDS();
+ SCRUTE(aSubMeshDSVertex);
+
+ int nbNodes = aSubMeshDSVertex->NbNodes();
+ NbTotOfNodesVertices += nbNodes;
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Vertex " << (i+1) << " has " << nbNodes << " Nodes");
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSVertex->GetNodes();
+ SCRUTE(nbNodes);
+ int index = 0;
+ while(iteratorNodes->more())
+ {
+ index++;
+ const SMDS_MeshNode * node = iteratorNodes->next();
+// int nodeId = node->GetID();
+// double nodeX = node->X();
+// double nodeY = node->Y();
+// double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ }
+
+ SCRUTE(index);
+ }
+
+ SCRUTE(NbTotOfNodesVertices);
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Analysis of all shell mesh");
+
+ vector<SMESH_subMesh*> meshShells;
+ TopoDS_Shell aShell;
+
+ for (TopExp_Explorer exp(aShape,TopAbs_SHELL);exp.More();exp.Next())
+ {
+ SMESH_subMesh* aSubMesh = aMesh.GetSubMesh(exp.Current());
+ ASSERT(aSubMesh);
+ SCRUTE(aSubMesh);
+ aShell = TopoDS::Shell(exp.Current());
+ meshShells.push_back(aSubMesh);
+ }
+
+ int numberOfShells = meshShells.size();
+ SCRUTE(numberOfShells);
+
+ if (numberOfShells == 1)
+ {
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Only one shell --> generation of the mesh using directly Netgen");
+
+ /*
+ Prepare the Netgen surface mesh from the SMESHDS
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Prepare the Netgen surface mesh from the SMESHDS");
+
+ int spaceDimension = 3;
+ int nbNodesByTri = 3;
+ int nbNodesByTetra = 4;
+
+ int Netgen_NbOfNodes = NbTotOfNodesFaces +
+ NbTotOfNodesEdges +
+ NbTotOfNodesVertices;
+ int Netgen_NbOfTria = NbTotOfTria;
+ int Netgen_param2ndOrder = 0;
+ double Netgen_paramFine = 1.;
+ double Netgen_paramSize = _maxElementVolume;
+
+ SCRUTE(Netgen_NbOfNodes);
+ SCRUTE(Netgen_NbOfTria);
+
+ double * Netgen_Coordinates = new double [spaceDimension*
+ Netgen_NbOfNodes];
+ int * listNodeCoresNetgenSmesh = new int [Netgen_NbOfNodes];
+ int * Netgen_Connectivity = new int [nbNodesByTri*Netgen_NbOfTria];
+ double * Netgen_point = new double [spaceDimension];
+ int * Netgen_triangle = new int [nbNodesByTri];
+ int * Netgen_tetrahedron = new int [nbNodesByTetra];
+
+ for (int i=0; i<Netgen_NbOfTria; i++)
+ {
+ for (int j=0; j<nbNodesByTri; j++)
+ Netgen_Connectivity[i*nbNodesByTri+j] = 0;
+ }
+
+ double bigNumber = 1.e20;
+
+ for (int i=0; i<Netgen_NbOfNodes; i++)
+ {
+ listNodeCoresNetgenSmesh[i] = 0;
+ for (int j=0; j<spaceDimension; j++)
+ Netgen_Coordinates[i*spaceDimension+j] = bigNumber;
+ }
+
+ int indexNodes = 0;
+ for (int i=0; i<numberOfVertices; i++)
+ {
+ const SMESHDS_SubMesh * aSubMeshDSVertex =
+ meshVertices[i]->GetSubMeshDS();
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSVertex->GetNodes();
+
+ while(iteratorNodes->more())
+ {
+ const SMDS_MeshNode * node = iteratorNodes->next();
+ int nodeId = node->GetID();
+ double nodeX = node->X();
+ double nodeY = node->Y();
+ double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ listNodeCoresNetgenSmesh[indexNodes] = nodeId;
+ int index = indexNodes*spaceDimension;
+ Netgen_Coordinates[index] = nodeX;
+ Netgen_Coordinates[index+1] = nodeY;
+ Netgen_Coordinates[index+2] = nodeZ;
+ netgenToDS[indexNodes] = node;
+ indexNodes++;
+ }
+ }
+
+ for (int i=0; i<numberOfEdges; i++)
+ {
+ const SMESHDS_SubMesh * aSubMeshDSEdge =
+ meshEdges[i]->GetSubMeshDS();
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSEdge->GetNodes();
+
+ while(iteratorNodes->more())
+ {
+ const SMDS_MeshNode * node = iteratorNodes->next();
+ int nodeId = node->GetID();
+ double nodeX = node->X();
+ double nodeY = node->Y();
+ double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ listNodeCoresNetgenSmesh[indexNodes] = node->GetID();
+ int index = indexNodes*spaceDimension;
+ Netgen_Coordinates[index] = node->X();
+ Netgen_Coordinates[index+1] = node->Y();
+ Netgen_Coordinates[index+2] = node->Z();
+ netgenToDS[indexNodes] = node;
+ indexNodes++;
+ }
+ }
+
+ for (int i=0; i<numberOfFaces; i++)
+ {
+ const SMESHDS_SubMesh * aSubMeshDSFace =
+ meshFaces[i]->GetSubMeshDS();
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSFace->GetNodes();
+
+ while(iteratorNodes->more())
+ {
+ const SMDS_MeshNode * node = iteratorNodes->next();
+ int nodeId = node->GetID();
+ double nodeX = node->X();
+ double nodeY = node->Y();
+ double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ listNodeCoresNetgenSmesh[indexNodes] = nodeId;
+ int index = indexNodes*spaceDimension;
+ Netgen_Coordinates[index] = nodeX;
+ Netgen_Coordinates[index+1] = nodeY;
+ Netgen_Coordinates[index+2] = nodeZ;
+ netgenToDS[indexNodes] = node;
+ indexNodes++;
+ }
+ }
+
+ SCRUTE(indexNodes);
+
+ for (int i=0; i<Netgen_NbOfNodes; i++)
+ {
+ ASSERT(listNodeCoresNetgenSmesh[i] != 0);
+
+ for (int j=0; j<Netgen_NbOfNodes && j!=i; j++)
+ ASSERT(listNodeCoresNetgenSmesh[i] != listNodeCoresNetgenSmesh[j]);
+
+ for (int j=0; j<spaceDimension; j++)
+ ASSERT(Netgen_Coordinates[i*spaceDimension+j] != bigNumber);
+ }
+
+ int indexTrias = 0;
+ for (int i=0; i<numberOfFaces; i++)
+ {
+ const SMESHDS_SubMesh * aSubMeshDSFace =
+ meshFaces[i]->GetSubMeshDS();
+
+ TopoDS_Shape aFace = shapeFaces[i];
+
+ SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
+
+ TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
+
+ bool orientationMeshFace = (aFace.Orientation() == aShapeFace.Orientation());
+
+ SCRUTE(orientationMeshFace);
+
+ if (orientationMeshFace)
+ {
+ MESSAGE("The mesh and face have the same orientation");
+
+ while(iteratorTriangle->more())
+ {
+ const SMDS_MeshElement * triangle = iteratorTriangle->next();
+ int triangleId = triangle->GetID();
+
+ SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
+
+ int triangleNode1 = (triangleNodesIt->next())->GetID();
+ int triangleNode2 = (triangleNodesIt->next())->GetID();
+ int triangleNode3 = (triangleNodesIt->next())->GetID();
+
+// MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3);
+
+ int N1New = 0;
+ int N2New = 0;
+ int N3New = 0;
+ int index = indexTrias*nbNodesByTri;
+
+ for (int j=0; j<Netgen_NbOfNodes; j++)
+ {
+ int jp1 = j+1;
+
+ if (triangleNode1 == listNodeCoresNetgenSmesh[j])
+ N1New = jp1;
+ else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
+ N2New = jp1;
+ else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
+ N3New = jp1;
+ }
+
+ triangleNode1 = N1New;
+ triangleNode2 = N2New;
+ triangleNode3 = N3New;
+
+ Netgen_Connectivity[index] = triangleNode1;
+ Netgen_Connectivity[index+1] = triangleNode2;
+ Netgen_Connectivity[index+2] = triangleNode3;
+
+ indexTrias++;
+ }
+ }
+ else
+ {
+ MESSAGE("The mesh and face have different orientations");
+
+ while(iteratorTriangle->more())
+ {
+ const SMDS_MeshElement * triangle = iteratorTriangle->next();
+ int triangleId = triangle->GetID();
+
+ SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
+
+ int triangleNode1 = (triangleNodesIt->next())->GetID();
+ int triangleNode3 = (triangleNodesIt->next())->GetID();
+ int triangleNode2 = (triangleNodesIt->next())->GetID();
+
+// MESSAGE("TRIANGLE -> ID = " << triangleId << " N1 = " << triangleNode1 << " N2 = " << triangleNode2 << " N3 = " << triangleNode3);
+
+ int N1New = 0;
+ int N2New = 0;
+ int N3New = 0;
+ int index = indexTrias*nbNodesByTri;
+
+ for (int j=0; j<Netgen_NbOfNodes; j++)
+ {
+ int jp1 = j+1;
+
+ if (triangleNode1 == listNodeCoresNetgenSmesh[j])
+ N1New = jp1;
+ else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
+ N2New = jp1;
+ else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
+ N3New = jp1;
+ }
+
+ triangleNode1 = N1New;
+ triangleNode2 = N2New;
+ triangleNode3 = N3New;
+
+ Netgen_Connectivity[index] = triangleNode1;
+ Netgen_Connectivity[index+1] = triangleNode2;
+ Netgen_Connectivity[index+2] = triangleNode3;
+
+ indexTrias++;
+ }
+ }
+ }
+
+ SCRUTE(indexTrias);
+
+ int * nodesUsed = new int[Netgen_NbOfNodes];
+
+ for (int i=0; i<Netgen_NbOfNodes; i++) nodesUsed[i] = 0;
+
+ for (int i=0; i<Netgen_NbOfTria; i++)
+ for (int j=0; j<nbNodesByTri; j++)
+ {
+ int Nij = Netgen_Connectivity[i*nbNodesByTri+j];
+
+ ASSERT((Nij>=1) && (Nij<=Netgen_NbOfNodes));
+
+ nodesUsed[Nij-1] = 1;
+ Netgen_Connectivity[i*nbNodesByTri+j] = Nij;
+ }
+
+ for (int i=0; i<Netgen_NbOfNodes; i++)
+ {
+ ASSERT(nodesUsed[i] != 0);
+ }
+
+ delete [] nodesUsed;
+
+ /*
+ Feed the Netgen surface mesh
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Feed the Netgen surface mesh");
+
+ Ng_Mesh * Netgen_mesh;
+
+ Ng_Init();
+
+ Netgen_mesh = Ng_NewMesh();
+
+ Ng_Meshing_Parameters Netgen_param;
+
+ for (int i=0; i<Netgen_NbOfNodes; i++)
+ {
+ for (int j=0; j<spaceDimension; j++)
+ Netgen_point[j] = Netgen_Coordinates[i*spaceDimension+j];
+
+ Ng_AddPoint(Netgen_mesh, Netgen_point);
+ }
+
+ for (int i=0; i<Netgen_NbOfTria; i++)
+ {
+ for (int j=0; j<nbNodesByTri; j++)
+ Netgen_triangle[j] = Netgen_Connectivity[i*nbNodesByTri+j];
+
+ Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
+ }
+
+ SCRUTE(Netgen_paramSize);
+
+ Netgen_param.secondorder = Netgen_param2ndOrder;
+ Netgen_param.fineness = Netgen_paramFine;
+ Netgen_param.maxh = Netgen_paramSize;
+
+ /*
+ Generate the volume mesh
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Generate the volume mesh");
+
+ SCRUTE(Netgen_NbOfNodes);
+ SCRUTE(Netgen_NbOfTria);
+
+ SCRUTE(Ng_GetNP(Netgen_mesh));
+ SCRUTE(Ng_GetNE(Netgen_mesh));
+ SCRUTE(Ng_GetNSE(Netgen_mesh));
+
+ ASSERT(Netgen_NbOfNodes == Ng_GetNP(Netgen_mesh));
+ ASSERT(Ng_GetNE(Netgen_mesh) == 0);
+ ASSERT(Netgen_NbOfTria == Ng_GetNSE(Netgen_mesh));
+
+ Ng_Result status;
+
+ status = Ng_GenerateVolumeMesh(Netgen_mesh, &Netgen_param);
+
+ SCRUTE(status);
+
+ int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
+
+ int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
+
+ SCRUTE(Netgen_NbOfNodesNew);
+
+ SCRUTE(Netgen_NbOfTetra);
+
+ if ((status != NG_OK) ||
+ (Netgen_NbOfNodesNew <= Netgen_NbOfNodes) ||
+ (Netgen_NbOfTetra <= 0))
+ {
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute The Volume Mesh Generation has failed ...");
+ SCRUTE(status);
+
+ /*
+ Free the memory needed by to generate the Netgen Mesh
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Free the memory needed by to generate the Netgen Mesh");
+
+ delete [] Netgen_Coordinates;
+ delete [] Netgen_Connectivity;
+ delete [] Netgen_point;
+ delete [] Netgen_triangle;
+ delete [] Netgen_tetrahedron;
+
+ delete [] listNodeCoresNetgenSmesh;
+
+ Ng_DeleteMesh(Netgen_mesh);
+ Ng_Exit();
+
+ return false;
+ }
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute End of Volume Mesh Generation");
+ SCRUTE(status);
+
+ double * Netgen_CoordinatesNew = new double [spaceDimension*Netgen_NbOfNodesNew];
+ int * Netgen_ConnectivityNew = new int [nbNodesByTetra*Netgen_NbOfTetra];
+
+ for (int i=0; i<Netgen_NbOfNodesNew; i++)
+ {
+ Ng_GetPoint(Netgen_mesh, (i+1), Netgen_point);
+
+ for (int j=0; j<spaceDimension; j++)
+ Netgen_CoordinatesNew[i*spaceDimension+j] = Netgen_point[j];
+ }
+
+ for (int i=0; i<Netgen_NbOfNodes; i++)
+ for (int j=0; j<spaceDimension; j++)
+ ASSERT(Netgen_CoordinatesNew[i*spaceDimension+j] == Netgen_Coordinates[i*spaceDimension+j])
+
+ for (int i=0; i<Netgen_NbOfTetra; i++)
+ {
+ Ng_GetVolumeElement(Netgen_mesh, (i+1), Netgen_tetrahedron);
+
+ for (int j=0; j<nbNodesByTetra; j++)
+ Netgen_ConnectivityNew[i*nbNodesByTetra+j] = Netgen_tetrahedron[j];
+ }
+
+ /*
+ Feed back the SMESHDS with the generated Nodes and Volume Elements
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Feed back the SMESHDS with the generated Nodes and Volume Elements");
+
+ int NbTotOfNodesShell = Netgen_NbOfNodesNew - Netgen_NbOfNodes;
+
+ SCRUTE(NbTotOfNodesShell);
+
+ int * listNodeShellCoresNetgenSmesh = new int [NbTotOfNodesShell];
+
+ for (int i=0; i<NbTotOfNodesShell; i++)
+ listNodeShellCoresNetgenSmesh[i] = 0;
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Adding the New Nodes to SMESHDS");
+
+ for (int i=0; i<NbTotOfNodesShell; i++)
+ {
+ int index = (i+Netgen_NbOfNodes)*spaceDimension;
+
+ SMDS_MeshNode * node =
+ meshDS->AddNode(Netgen_CoordinatesNew[index],
+ Netgen_CoordinatesNew[index+1],
+ Netgen_CoordinatesNew[index+2]);
+
+ meshDS->SetNodeInVolume(node, aShell);
+
+ index = i+Netgen_NbOfNodes;
+ netgenToDS[index] = node;
+
+ listNodeShellCoresNetgenSmesh[i] = node->GetID();
+ }
+
+ SCRUTE(Netgen_NbOfNodesNew);
+
+ SCRUTE(netgenToDS.size());
+
+ for (int i=0; i<NbTotOfNodesShell; i++)
+ {
+ ASSERT(listNodeShellCoresNetgenSmesh[i] != 0);
+
+ for (int j=0; j<NbTotOfNodesShell && j!=i; j++)
+ ASSERT(listNodeShellCoresNetgenSmesh[i] != listNodeShellCoresNetgenSmesh[j]);
+ }
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute --> Adding the New elements (Tetrahedrons) to the SMESHDS");
+
+ for (int i=0; i<Netgen_NbOfTetra; i++)
+ {
+ int index = i*nbNodesByTetra;
+ int tetraNode1 = Netgen_ConnectivityNew[index];
+ int tetraNode2 = Netgen_ConnectivityNew[index+1];
+ int tetraNode3 = Netgen_ConnectivityNew[index+2];
+ int tetraNode4 = Netgen_ConnectivityNew[index+3];
+
+ const SMDS_MeshNode * node1 = netgenToDS[tetraNode1-1];
+ const SMDS_MeshNode * node2 = netgenToDS[tetraNode2-1];
+ const SMDS_MeshNode * node3 = netgenToDS[tetraNode3-1];
+ const SMDS_MeshNode * node4 = netgenToDS[tetraNode4-1];
+
+ index = tetraNode1;
+ if (index <= Netgen_NbOfNodes)
+ tetraNode1 = listNodeCoresNetgenSmesh[index-1];
+ else
+ tetraNode1 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
+
+ index = tetraNode2;
+ if (index <= Netgen_NbOfNodes)
+ tetraNode2 = listNodeCoresNetgenSmesh[index-1];
+ else
+ tetraNode2 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
+
+ index = tetraNode3;
+ if (index <= Netgen_NbOfNodes)
+ tetraNode3 = listNodeCoresNetgenSmesh[index-1];
+ else
+ tetraNode3 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
+
+ index = tetraNode4;
+ if (index <= Netgen_NbOfNodes)
+ tetraNode4 = listNodeCoresNetgenSmesh[index-1];
+ else
+ tetraNode4 = listNodeShellCoresNetgenSmesh[index-Netgen_NbOfNodes-1];
+
+ SMDS_MeshVolume * elt =
+ meshDS->AddVolume(node1,node2,node3,node4);
+
+ meshDS->SetMeshElementOnShape(elt, aShell);
+ }
+
+ /*
+ Free the memory needed by to generate the Netgen Mesh
+ */
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Free the memory needed by to generate the Netgen Mesh");
+
+ delete [] Netgen_Coordinates;
+ delete [] Netgen_Connectivity;
+ delete [] Netgen_CoordinatesNew;
+ delete [] Netgen_ConnectivityNew;
+ delete [] Netgen_point;
+ delete [] Netgen_triangle;
+ delete [] Netgen_tetrahedron;
+
+ delete [] listNodeCoresNetgenSmesh;
+ delete [] listNodeShellCoresNetgenSmesh;
+
+ Ng_DeleteMesh(Netgen_mesh);
+ Ng_Exit();
+
+ /*
+ Verification
+ */
+
+ {
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute Verification of the Shell mesh");
+
+ TopoDS_Shape aShapeShell = meshShells[0]->GetSubShape();
+ SMESH_Algo* algoShell = _gen->GetAlgo(aMesh, aShapeShell);
+ string algoShellName = algoShell->GetName();
+ SCRUTE(algoShellName);
+ if (algoShellName != "NETGEN_3D")
+ {
+ SCRUTE(algoShellName);
+ ASSERT(0);
+ return false;
+ }
+
+ const SMESHDS_SubMesh * aSubMeshDSShell = meshShells[0]->GetSubMeshDS();
+ SCRUTE(&aSubMeshDSShell);
+
+ int nbNodes = aSubMeshDSShell->NbNodes();
+ int nbTetra = aSubMeshDSShell->NbElements();
+
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute The mesh Shell has " << nbNodes << " shell internal Nodes, " << nbTetra << " tetrahedrons");
+
+ SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSShell->GetNodes();
+
+ SCRUTE(nbNodes);
+
+ int index;
+
+ index = 0;
+
+ while(iteratorNodes->more())
+ {
+ index++;
+ const SMDS_MeshNode * node = iteratorNodes->next();
+ int nodeId = node->GetID();
+ double nodeX = node->X();
+ double nodeY = node->Y();
+ double nodeZ = node->Z();
+// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
+ }
+
+ SCRUTE(index);
+
+ SMDS_ElemIteratorPtr iteratorTetra = aSubMeshDSShell->GetElements();
+
+ SCRUTE(nbTetra);
+
+ index = 0;
+ while(iteratorTetra->more())
+ {
+ index++;
+ const SMDS_MeshElement * tetra = iteratorTetra->next();
+ int tetraId = tetra->GetID();
+
+ SMDS_ElemIteratorPtr tetraNodesIt = tetra->nodesIterator();
+
+ int tetraNode1 = (tetraNodesIt->next())->GetID();
+ int tetraNode2 = (tetraNodesIt->next())->GetID();
+ int tetraNode3 = (tetraNodesIt->next())->GetID();
+ int tetraNode4 = (tetraNodesIt->next())->GetID();
+
+// MESSAGE("TETRAHEDRON -> ID = " << tetraId << " N1 = " << tetraNode1 << " N2 = " << tetraNode2 << " N3 = " << tetraNode3 << " N4 = " << tetraNode4);
+
+ }
+
+ SCRUTE(index);
+ }
+ }
+ else
+ {
+ SCRUTE(numberOfShells);
+ MESSAGE("NETGENPlugin_NETGEN_3D::Compute ERROR More than one shell ????? ");
+ return false;
+ }
+
+ return true;
+}
+
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+ostream & NETGENPlugin_NETGEN_3D::SaveTo(ostream & save)
+{
+ return save;
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+istream & NETGENPlugin_NETGEN_3D::LoadFrom(istream & load)
+{
+ return load;
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+ostream & operator << (ostream & save, NETGENPlugin_NETGEN_3D & hyp)
+{
+ return hyp.SaveTo( save );
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+istream & operator >> (istream & load, NETGENPlugin_NETGEN_3D & hyp)
+{
+ return hyp.LoadFrom( load );
+}
