Fix Bug PAL8787: pass to Netgen only nodes of triangles
This commit is contained in:
eap
parent
28ecde73c5
commit
d7ecb4aa0c
@ -10,27 +10,22 @@
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using namespace std;
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#include "NETGENPlugin_NETGEN_3D.hxx"
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#include "SMESH_Gen.hxx"
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#include "SMESH_Mesh.hxx"
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#include "SMESH_subMesh.hxx"
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#include "SMESH_ControlsDef.hxx"
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#include "SMESHDS_Mesh.hxx"
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#include "SMDS_MeshElement.hxx"
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#include "SMDS_MeshNode.hxx"
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#include "SMDS_FacePosition.hxx"
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#include <TopExp.hxx>
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#include <TopTools_IndexedDataMapOfShapeListOfShape.hxx>
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#include <TopTools_ListOfShape.hxx>
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#include <TopTools_ListIteratorOfListOfShape.hxx>
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#include <TColStd_ListIteratorOfListOfInteger.hxx>
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#include <BRep_Tool.hxx>
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#include <Geom_Surface.hxx>
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#include <Geom_Curve.hxx>
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#include <Geom2d_Curve.hxx>
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#include "utilities.h"
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#include <list>
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#include <vector>
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#include <map>
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/*
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Netgen include files
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*/
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@ -100,8 +95,6 @@ bool NETGENPlugin_NETGEN_3D::CheckHypothesis
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theHyp = (*itl); // use only the first hypothesis
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string hypName = theHyp->GetName();
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// int hypId = theHyp->GetID();
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// SCRUTE(hypName);
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bool isOk = false;
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@ -132,631 +125,179 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
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SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
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map<int, const SMDS_MeshNode*> netgenToDS;
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// get a shell from aShape
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TopoDS_Shell aShell;
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TopExp_Explorer exp(aShape,TopAbs_SHELL);
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if ( exp.More() )
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aShell = TopoDS::Shell(exp.Current());
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// check if all faces were meshed by a triangle mesher (here MESFISTO_2D)
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if ( aShell.IsNull() || !aMesh.GetSubMesh( aShell )) {
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INFOS( "NETGENPlugin_NETGEN_3D::Compute(), bad shape");
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return false;
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}
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// -------------------------------------------------------------------
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// get triangles on aShell and make a map of nodes to Netgen node IDs
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// -------------------------------------------------------------------
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vector<SMESH_subMesh*> meshFaces;
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vector<TopoDS_Shape> shapeFaces;
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typedef map< const SMDS_MeshNode*, int> TNodeToIDMap;
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TNodeToIDMap nodeToNetgenID;
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list< const SMDS_MeshElement* > triangles;
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list< bool > isReversed; // orientation of triangles
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SMESH::Controls::Area areaControl;
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SMESH::Controls::TSequenceOfXYZ nodesCoords;
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for (TopExp_Explorer exp(aShape,TopAbs_FACE);exp.More();exp.Next())
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{
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TopoDS_Shape aShapeFace = exp.Current();
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int faceID = meshDS->ShapeToIndex( aShapeFace );
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TopoDS_Shape aMeshedFace = meshDS->IndexToShape( faceID );
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const SMESHDS_SubMesh * aSubMeshDSFace = meshDS->MeshElements( faceID );
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if ( aSubMeshDSFace )
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{
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TopoDS_Shape aShapeFace = exp.Current();
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SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
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ASSERT (aSubMesh);
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int internal_size = meshFaces.size();
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int index = 0;
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for (int i = 0;i<internal_size;i++)
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{
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if (aSubMesh == meshFaces[i]) index = 1;
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}
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if (index == 0) meshFaces.push_back(aSubMesh);
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internal_size = shapeFaces.size();
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index = 0;
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for (int i = 0;i<internal_size;i++)
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{
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if (aShapeFace == shapeFaces[i]) index = 1;
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}
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if (index == 0) shapeFaces.push_back(aShapeFace);
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}
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int numberOfFaces = meshFaces.size();
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int NbTotOfTria = 0;
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int NbTotOfNodesFaces = 0;
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for (int i=0; i<numberOfFaces; i++)
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{
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TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
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TopoDS_Shape aFace = shapeFaces[i];
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SMESH_Algo* algoFace = _gen->GetAlgo(aMesh, aShapeFace);
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string algoFaceName = algoFace->GetName();
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if (algoFaceName != "MEFISTO_2D")
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{
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INFOS(algoFaceName);
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return false;
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}
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const SMESHDS_SubMesh* aSubMeshDSFace = meshFaces[i]->GetSubMeshDS();
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int nbNodes = aSubMeshDSFace->NbNodes();
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NbTotOfNodesFaces += nbNodes;
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int nbTria = aSubMeshDSFace->NbElements();
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NbTotOfTria += nbTria;
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int index = 0;
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SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
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index = 0;
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int numberOfDegeneratedTriangle = 0;
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while(iteratorTriangle->more())
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{
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index++;
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const SMDS_MeshElement * triangle = iteratorTriangle->next();
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SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
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const SMDS_MeshNode * node1 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
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double node1X = node1->X();
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double node1Y = node1->Y();
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double node1Z = node1->Z();
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const SMDS_MeshNode * node2 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
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double node2X = node2->X();
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double node2Y = node2->Y();
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double node2Z = node2->Z();
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const SMDS_MeshNode * node3 = static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
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double node3X = node3->X();
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double node3Y = node3->Y();
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double node3Z = node3->Z();
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// Compute the triangle surface
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double vect1 = ((node2Y - node1Y)*(node3Z - node1Z) - (node2Z - node1Z)*(node3Y - node1Y));
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double vect2 = - ((node2X - node1X)*(node3Z - node1Z) - (node2Z - node1Z)*(node3X - node1X));
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double vect3 = ((node2X - node1X)*(node3Y - node1Y) - (node2Y - node1Y)*(node3X - node1X));
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double epsilon = 1.0e-6;
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bool triangleIsDegenerated = ((abs(vect1)<epsilon) && (abs(vect2)<epsilon) && (abs(vect3)<epsilon));
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if (triangleIsDegenerated)
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{
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numberOfDegeneratedTriangle++;
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}
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}
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if (numberOfDegeneratedTriangle > 0)
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MESSAGE("WARNING THERE IS(ARE) " << numberOfDegeneratedTriangle << " degenerated triangle on this face");
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}
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// check if all edges were meshed by a edge mesher (here Regular_1D)
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vector<SMESH_subMesh*> meshEdges;
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for (TopExp_Explorer exp(aShape,TopAbs_EDGE);exp.More();exp.Next())
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{
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SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
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ASSERT (aSubMesh);
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int internal_size = meshEdges.size();
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int index = 0;
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for (int i = 0;i<internal_size;i++)
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{
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if (aSubMesh == meshEdges[i]) index = 1;
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}
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if (index == 0) meshEdges.push_back(aSubMesh);
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}
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int numberOfEdges = meshEdges.size();
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int NbTotOfNodesEdges = 0;
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int NbTotOfSegs = 0;
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for (int i=0; i<numberOfEdges; i++)
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{
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TopoDS_Shape aShapeEdge = meshEdges[i]->GetSubShape();
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SMESH_Algo* algoEdge = _gen->GetAlgo(aMesh, aShapeEdge);
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string algoEdgeName = algoEdge->GetName();
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if (algoEdgeName != "Regular_1D")
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{
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INFOS(algoEdgeName);
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ASSERT(0);
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return false;
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}
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const SMESHDS_SubMesh* aSubMeshDSEdge = meshEdges[i]->GetSubMeshDS();
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int nbNodes = aSubMeshDSEdge->NbNodes();
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NbTotOfNodesEdges += nbNodes;
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int nbSegs = aSubMeshDSEdge->NbElements();
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NbTotOfSegs += nbSegs;
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}
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vector<SMESH_subMesh*> meshVertices;
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for (TopExp_Explorer exp(aShape,TopAbs_VERTEX);exp.More();exp.Next())
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{
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SMESH_subMesh* aSubMesh = aMesh.GetSubMeshContaining(exp.Current());
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ASSERT (aSubMesh);
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int internal_size = meshVertices.size();
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int index = 0;
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for (int i = 0;i<internal_size;i++)
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{
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if (aSubMesh == meshVertices[i]) index = 1;
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}
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if (index == 0) meshVertices.push_back(aSubMesh);
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}
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int numberOfVertices = meshVertices.size();
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int NbTotOfNodesVertices = 0;
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for (int i=0; i<numberOfVertices; i++)
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{
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TopoDS_Shape aShapeVertex = meshVertices[i]->GetSubShape();
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const SMESHDS_SubMesh * aSubMeshDSVertex = meshVertices[i]->GetSubMeshDS();
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int nbNodes = aSubMeshDSVertex->NbNodes();
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NbTotOfNodesVertices += nbNodes;
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}
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vector<SMESH_subMesh*> meshShells;
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TopoDS_Shell aShell;
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for (TopExp_Explorer exp(aShape,TopAbs_SHELL);exp.More();exp.Next())
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{
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SMESH_subMesh* aSubMesh = aMesh.GetSubMesh(exp.Current());
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ASSERT(aSubMesh);
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aShell = TopoDS::Shell(exp.Current());
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meshShells.push_back(aSubMesh);
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}
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int numberOfShells = meshShells.size();
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if (numberOfShells > 0)
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{
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/*
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Prepare the Netgen surface mesh from the SMESHDS
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*/
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int spaceDimension = 3;
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int nbNodesByTri = 3;
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int nbNodesByTetra = 4;
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int Netgen_NbOfNodes = NbTotOfNodesFaces +
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NbTotOfNodesEdges +
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NbTotOfNodesVertices;
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int Netgen_NbOfTria = NbTotOfTria;
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int Netgen_param2ndOrder = 0;
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double Netgen_paramFine = 1.;
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double Netgen_paramSize = _maxElementVolume;
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double * Netgen_Coordinates = new double [spaceDimension*
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Netgen_NbOfNodes];
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int * listNodeCoresNetgenSmesh = new int [Netgen_NbOfNodes];
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int * Netgen_Connectivity = new int [nbNodesByTri*Netgen_NbOfTria];
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double * Netgen_point = new double [spaceDimension];
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int * Netgen_triangle = new int [nbNodesByTri];
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int * Netgen_tetrahedron = new int [nbNodesByTetra];
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for (int i=0; i<Netgen_NbOfTria; i++)
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{
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for (int j=0; j<nbNodesByTri; j++)
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Netgen_Connectivity[i*nbNodesByTri+j] = 0;
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}
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double bigNumber = 1.e20;
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for (int i=0; i<Netgen_NbOfNodes; i++)
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{
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listNodeCoresNetgenSmesh[i] = 0;
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for (int j=0; j<spaceDimension; j++)
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Netgen_Coordinates[i*spaceDimension+j] = bigNumber;
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}
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int indexNodes = 0;
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for (int i=0; i<numberOfVertices; i++)
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{
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const SMESHDS_SubMesh * aSubMeshDSVertex =
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meshVertices[i]->GetSubMeshDS();
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SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSVertex->GetNodes();
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while(iteratorNodes->more())
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{
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const SMDS_MeshNode * node = iteratorNodes->next();
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int nodeId = node->GetID();
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double nodeX = node->X();
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double nodeY = node->Y();
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double nodeZ = node->Z();
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listNodeCoresNetgenSmesh[indexNodes] = nodeId;
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int index = indexNodes*spaceDimension;
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Netgen_Coordinates[index] = nodeX;
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Netgen_Coordinates[index+1] = nodeY;
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Netgen_Coordinates[index+2] = nodeZ;
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netgenToDS[indexNodes] = node;
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indexNodes++;
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}
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}
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for (int i=0; i<numberOfEdges; i++)
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{
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const SMESHDS_SubMesh * aSubMeshDSEdge =
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meshEdges[i]->GetSubMeshDS();
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SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSEdge->GetNodes();
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while(iteratorNodes->more())
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{
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const SMDS_MeshNode * node = iteratorNodes->next();
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listNodeCoresNetgenSmesh[indexNodes] = node->GetID();
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int index = indexNodes*spaceDimension;
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Netgen_Coordinates[index] = node->X();
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Netgen_Coordinates[index+1] = node->Y();
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Netgen_Coordinates[index+2] = node->Z();
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netgenToDS[indexNodes] = node;
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indexNodes++;
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}
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}
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for (int i=0; i<numberOfFaces; i++)
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{
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const SMESHDS_SubMesh * aSubMeshDSFace =
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meshFaces[i]->GetSubMeshDS();
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SMDS_NodeIteratorPtr iteratorNodes = aSubMeshDSFace->GetNodes();
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while(iteratorNodes->more())
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{
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const SMDS_MeshNode * node = iteratorNodes->next();
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int nodeId = node->GetID();
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double nodeX = node->X();
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double nodeY = node->Y();
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double nodeZ = node->Z();
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// MESSAGE("NODE -> ID = " << nodeId << " X = " << nodeX << " Y = " << nodeY << " Z = " << nodeZ);
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listNodeCoresNetgenSmesh[indexNodes] = nodeId;
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int index = indexNodes*spaceDimension;
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Netgen_Coordinates[index] = nodeX;
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Netgen_Coordinates[index+1] = nodeY;
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Netgen_Coordinates[index+2] = nodeZ;
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netgenToDS[indexNodes] = node;
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indexNodes++;
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}
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}
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for (int i=0; i<Netgen_NbOfNodes; i++)
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{
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ASSERT(listNodeCoresNetgenSmesh[i] != 0);
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for (int j=0; j<Netgen_NbOfNodes && j!=i; j++)
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ASSERT(listNodeCoresNetgenSmesh[i] != listNodeCoresNetgenSmesh[j]);
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for (int j=0; j<spaceDimension; j++)
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ASSERT(Netgen_Coordinates[i*spaceDimension+j] != bigNumber);
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}
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int indexTrias = 0;
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for (int i=0; i<numberOfFaces; i++)
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{
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const SMESHDS_SubMesh * aSubMeshDSFace =
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meshFaces[i]->GetSubMeshDS();
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TopoDS_Shape aFace = shapeFaces[i];
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SMDS_ElemIteratorPtr iteratorTriangle = aSubMeshDSFace->GetElements();
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TopoDS_Shape aShapeFace = meshFaces[i]->GetSubShape();
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bool orientationMeshFace = (aFace.Orientation() == aShapeFace.Orientation());
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if (orientationMeshFace)
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{
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while(iteratorTriangle->more())
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{
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const SMDS_MeshElement * triangle = iteratorTriangle->next();
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SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
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int triangleNode1 = (triangleNodesIt->next())->GetID();
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int triangleNode2 = (triangleNodesIt->next())->GetID();
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int triangleNode3 = (triangleNodesIt->next())->GetID();
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int N1New = 0;
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int N2New = 0;
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int N3New = 0;
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int index = indexTrias*nbNodesByTri;
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for (int j=0; j<Netgen_NbOfNodes; j++)
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{
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int jp1 = j+1;
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if (triangleNode1 == listNodeCoresNetgenSmesh[j])
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N1New = jp1;
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else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
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N2New = jp1;
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else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
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N3New = jp1;
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}
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triangleNode1 = N1New;
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triangleNode2 = N2New;
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triangleNode3 = N3New;
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Netgen_Connectivity[index] = triangleNode1;
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Netgen_Connectivity[index+1] = triangleNode2;
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Netgen_Connectivity[index+2] = triangleNode3;
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indexTrias++;
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}
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}
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else
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{
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while(iteratorTriangle->more())
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{
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const SMDS_MeshElement * triangle = iteratorTriangle->next();
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SMDS_ElemIteratorPtr triangleNodesIt = triangle->nodesIterator();
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int triangleNode1 = (triangleNodesIt->next())->GetID();
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int triangleNode3 = (triangleNodesIt->next())->GetID();
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int triangleNode2 = (triangleNodesIt->next())->GetID();
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int N1New = 0;
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int N2New = 0;
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int N3New = 0;
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int index = indexTrias*nbNodesByTri;
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for (int j=0; j<Netgen_NbOfNodes; j++)
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{
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int jp1 = j+1;
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if (triangleNode1 == listNodeCoresNetgenSmesh[j])
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N1New = jp1;
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else if (triangleNode2 == listNodeCoresNetgenSmesh[j])
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N2New = jp1;
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else if (triangleNode3 == listNodeCoresNetgenSmesh[j])
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N3New = jp1;
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}
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triangleNode1 = N1New;
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triangleNode2 = N2New;
|
||||
triangleNode3 = N3New;
|
||||
|
||||
Netgen_Connectivity[index] = triangleNode1;
|
||||
Netgen_Connectivity[index+1] = triangleNode2;
|
||||
Netgen_Connectivity[index+2] = triangleNode3;
|
||||
|
||||
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
|
||||
*/
|
||||
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);
|
||||
}
|
||||
|
||||
Netgen_param.secondorder = Netgen_param2ndOrder;
|
||||
Netgen_param.fineness = Netgen_paramFine;
|
||||
Netgen_param.maxh = Netgen_paramSize;
|
||||
|
||||
/*
|
||||
Generate the volume mesh
|
||||
*/
|
||||
|
||||
ASSERT(Netgen_NbOfNodes == Ng_GetNP(Netgen_mesh));
|
||||
ASSERT(Ng_GetNE(Netgen_mesh) == 0);
|
||||
ASSERT(Netgen_NbOfTria == Ng_GetNSE(Netgen_mesh));
|
||||
|
||||
Ng_Result status;
|
||||
|
||||
try {
|
||||
status = Ng_GenerateVolumeMesh(Netgen_mesh, &Netgen_param);
|
||||
} catch (...) {
|
||||
MESSAGE("An exception has been caught during the Volume Mesh Generation ...");
|
||||
status = NG_VOLUME_FAILURE;
|
||||
bool isRev = ( aShapeFace.Orientation() != aMeshedFace.Orientation() );
|
||||
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
|
||||
while ( iteratorElem->more() ) // loop on elements on a face
|
||||
{
|
||||
// check element
|
||||
const SMDS_MeshElement* elem = iteratorElem->next();
|
||||
if ( !elem || elem->NbNodes() != 3 ) {
|
||||
INFOS( "NETGENPlugin_NETGEN_3D::Compute(), bad mesh");
|
||||
return false;
|
||||
}
|
||||
// keep a triangle
|
||||
triangles.push_back( elem );
|
||||
isReversed.push_back( isRev );
|
||||
// put elem nodes to nodeToNetgenID map
|
||||
SMDS_ElemIteratorPtr triangleNodesIt = elem->nodesIterator();
|
||||
while ( triangleNodesIt->more() ) {
|
||||
const SMDS_MeshNode * node =
|
||||
static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
|
||||
nodeToNetgenID.insert( make_pair( node, 0 ));
|
||||
}
|
||||
#ifdef _DEBUG_
|
||||
// check if a trainge is degenerated
|
||||
areaControl.GetPoints( elem, nodesCoords );
|
||||
double area = areaControl.GetValue( nodesCoords );
|
||||
if ( area <= DBL_MIN ) {
|
||||
MESSAGE( "Warning: Degenerated " << elem );
|
||||
}
|
||||
#endif
|
||||
}
|
||||
}
|
||||
}
|
||||
// ---------------------------------
|
||||
// Feed the Netgen with surface mesh
|
||||
// ---------------------------------
|
||||
|
||||
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
|
||||
int Netgen_NbOfNodes = nodeToNetgenID.size();
|
||||
int Netgen_param2ndOrder = 0;
|
||||
double Netgen_paramFine = 1.;
|
||||
double Netgen_paramSize = _maxElementVolume;
|
||||
|
||||
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
|
||||
double Netgen_point[3];
|
||||
int Netgen_triangle[3];
|
||||
int Netgen_tetrahedron[4];
|
||||
|
||||
MESSAGE("End of Volume Mesh Generation. status=" << status <<
|
||||
", nb new nodes: " << Netgen_NbOfNodesNew - Netgen_NbOfNodes <<
|
||||
", nb tetra: " << Netgen_NbOfTetra);
|
||||
Ng_Init();
|
||||
|
||||
if ((status != NG_OK) ||
|
||||
(Netgen_NbOfTetra <= 0))
|
||||
{
|
||||
/*
|
||||
Free the memory needed by to generate the Netgen Mesh
|
||||
*/
|
||||
Ng_Mesh * Netgen_mesh = Ng_NewMesh();
|
||||
|
||||
delete [] Netgen_Coordinates;
|
||||
delete [] Netgen_Connectivity;
|
||||
delete [] Netgen_point;
|
||||
delete [] Netgen_triangle;
|
||||
delete [] Netgen_tetrahedron;
|
||||
// set nodes and remember thier netgen IDs
|
||||
TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
|
||||
for ( int id = 0; n_id != nodeToNetgenID.end(); ++n_id )
|
||||
{
|
||||
const SMDS_MeshNode* node = n_id->first;
|
||||
Netgen_point [ 0 ] = node->X();
|
||||
Netgen_point [ 1 ] = node->Y();
|
||||
Netgen_point [ 2 ] = node->Z();
|
||||
n_id->second = ++id;
|
||||
Ng_AddPoint(Netgen_mesh, Netgen_point);
|
||||
}
|
||||
// set triangles
|
||||
list< const SMDS_MeshElement* >::iterator tria = triangles.begin();
|
||||
list< bool >::iterator reverse = isReversed.begin();
|
||||
for ( ; tria != triangles.end(); ++tria, ++reverse )
|
||||
{
|
||||
int i = 0;
|
||||
SMDS_ElemIteratorPtr triangleNodesIt = (*tria)->nodesIterator();
|
||||
while ( triangleNodesIt->more() ) {
|
||||
const SMDS_MeshNode * node =
|
||||
static_cast<const SMDS_MeshNode *>(triangleNodesIt->next());
|
||||
Netgen_triangle[ *reverse ? 2 - i : i ] = nodeToNetgenID[ node ];
|
||||
++i;
|
||||
}
|
||||
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
|
||||
}
|
||||
|
||||
delete [] listNodeCoresNetgenSmesh;
|
||||
// -------------------------
|
||||
// Generate the volume mesh
|
||||
// -------------------------
|
||||
|
||||
Ng_DeleteMesh(Netgen_mesh);
|
||||
Ng_Exit();
|
||||
Ng_Meshing_Parameters Netgen_param;
|
||||
|
||||
return false;
|
||||
}
|
||||
Netgen_param.secondorder = Netgen_param2ndOrder;
|
||||
Netgen_param.fineness = Netgen_paramFine;
|
||||
Netgen_param.maxh = Netgen_paramSize;
|
||||
|
||||
Ng_Result status;
|
||||
|
||||
double * Netgen_CoordinatesNew = new double [spaceDimension*Netgen_NbOfNodesNew];
|
||||
int * Netgen_ConnectivityNew = new int [nbNodesByTetra*Netgen_NbOfTetra];
|
||||
try {
|
||||
status = Ng_GenerateVolumeMesh(Netgen_mesh, &Netgen_param);
|
||||
} catch (...) {
|
||||
MESSAGE("An exception has been caught during the Volume Mesh Generation ...");
|
||||
status = NG_VOLUME_FAILURE;
|
||||
}
|
||||
|
||||
for (int i=0; i<Netgen_NbOfNodesNew; i++)
|
||||
{
|
||||
Ng_GetPoint(Netgen_mesh, (i+1), Netgen_point);
|
||||
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
|
||||
|
||||
for (int j=0; j<spaceDimension; j++)
|
||||
Netgen_CoordinatesNew[i*spaceDimension+j] = Netgen_point[j];
|
||||
}
|
||||
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
|
||||
|
||||
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])
|
||||
MESSAGE("End of Volume Mesh Generation. status=" << status <<
|
||||
", nb new nodes: " << Netgen_NbOfNodesNew - Netgen_NbOfNodes <<
|
||||
", nb tetra: " << Netgen_NbOfTetra);
|
||||
|
||||
for (int i=0; i<Netgen_NbOfTetra; i++)
|
||||
{
|
||||
Ng_GetVolumeElement(Netgen_mesh, (i+1), Netgen_tetrahedron);
|
||||
// -------------------------------------------------------------------
|
||||
// Feed back the SMESHDS with the generated Nodes and Volume Elements
|
||||
// -------------------------------------------------------------------
|
||||
|
||||
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
|
||||
*/
|
||||
|
||||
int NbTotOfNodesShell = Netgen_NbOfNodesNew - Netgen_NbOfNodes;
|
||||
|
||||
int * listNodeShellCoresNetgenSmesh = new int [NbTotOfNodesShell];
|
||||
|
||||
for (int i=0; i<NbTotOfNodesShell; i++)
|
||||
listNodeShellCoresNetgenSmesh[i] = 0;
|
||||
|
||||
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();
|
||||
}
|
||||
|
||||
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]);
|
||||
}
|
||||
|
||||
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
|
||||
*/
|
||||
|
||||
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();
|
||||
|
||||
return true;
|
||||
bool isOK = ( status == NG_OK && Netgen_NbOfTetra > 0 );
|
||||
if ( isOK )
|
||||
{
|
||||
// vector of nodes in which node index == netgen ID
|
||||
vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
|
||||
// insert old nodes into nodeVec
|
||||
for ( n_id = nodeToNetgenID.begin(); n_id != nodeToNetgenID.end(); ++n_id )
|
||||
nodeVec[ n_id->second ] = n_id->first;
|
||||
// create and insert new nodes into nodeVec
|
||||
int nodeIndex = Netgen_NbOfNodes;
|
||||
for ( ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
|
||||
{
|
||||
Ng_GetPoint( Netgen_mesh, nodeIndex, Netgen_point );
|
||||
SMDS_MeshNode * node = meshDS->AddNode(Netgen_point[0],
|
||||
Netgen_point[1],
|
||||
Netgen_point[2]);
|
||||
meshDS->SetNodeInVolume(node, aShell);
|
||||
nodeVec[nodeIndex] = node;
|
||||
}
|
||||
|
||||
return false;
|
||||
}
|
||||
// create tetrahedrons
|
||||
for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
|
||||
{
|
||||
Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
|
||||
SMDS_MeshVolume * elt = meshDS->AddVolume (nodeVec[ Netgen_tetrahedron[0] ],
|
||||
nodeVec[ Netgen_tetrahedron[1] ],
|
||||
nodeVec[ Netgen_tetrahedron[2] ],
|
||||
nodeVec[ Netgen_tetrahedron[3] ]);
|
||||
meshDS->SetMeshElementOnShape(elt, aShell);
|
||||
}
|
||||
}
|
||||
|
||||
Ng_DeleteMesh(Netgen_mesh);
|
||||
Ng_Exit();
|
||||
|
||||
return isOK;
|
||||
}
|
||||
|
||||
//=============================================================================
|
||||
/*!
|
||||
|
||||
Loading…
Reference in New Issue
Block a user