// Copyright (C) 2012-2015 ALNEOS
-// Copyright (C) 2016-2021 EDF R&D
+// Copyright (C) 2016-2023 EDF
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
#include "GMSHPlugin_Mesher.hxx"
#include "GMSHPlugin_Hypothesis_2D.hxx"
-#include <SMDS_FaceOfNodes.hxx>
#include <SMDS_MeshElement.hxx>
#include <SMDS_MeshNode.hxx>
#include <SMESHDS_Mesh.hxx>
-#include <SMESH_Block.hxx>
#include <SMESH_Comment.hxx>
#include <SMESH_ComputeError.hxx>
-#include <SMESH_File.hxx>
#include <SMESH_Gen_i.hxx>
#include <SMESH_Mesh.hxx>
#include <SMESH_MesherHelper.hxx>
#include <SMESH_subMesh.hxx>
+#include <StdMeshers_FaceSide.hxx>
#include <utilities.h>
+#include <StdMeshers_QuadToTriaAdaptor.hxx>
+//CAS
+#include <BRep_Tool.hxx>
+#include <GeomAPI_ProjectPointOnCurve.hxx>
+#include <gp_Pnt.hxx>
+
+#include <gmsh.h>
#include <vector>
#include <limits>
-#include <BRep_Tool.hxx>
-#include <Bnd_B3d.hxx>
-#include <GCPnts_AbscissaPoint.hxx>
-#include <GeomAdaptor_Curve.hxx>
-#include <NCollection_Map.hxx>
-#include <OSD_File.hxx>
-#include <OSD_Path.hxx>
-#include <Standard_ErrorHandler.hxx>
-#include <Standard_ProgramError.hxx>
-#include <TCollection_AsciiString.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
-#include <TopTools_DataMapIteratorOfDataMapOfShapeInteger.hxx>
-#include <TopTools_DataMapIteratorOfDataMapOfShapeShape.hxx>
-#include <TopTools_DataMapOfShapeInteger.hxx>
-#include <TopTools_DataMapOfShapeShape.hxx>
-#include <TopTools_ListIteratorOfListOfShape.hxx>
-#include <TopTools_MapOfShape.hxx>
#include <TopoDS.hxx>
+#include <MLine.h>
+#include <MTriangle.h>
+#include <MQuadrangle.h>
#if GMSH_MAJOR_VERSION >=4
#include <GmshGlobal.h>
#include <gmsh/Context.h>
}
return shape;
}
+
+ double segmentSize( const UVPtStructVec& nodeParam, size_t i )
+ {
+ double l1 = SMESH_NodeXYZ( nodeParam[i].node ).Distance( nodeParam[i-1].node );
+ double l2 = SMESH_NodeXYZ( nodeParam[i].node ).Distance( nodeParam[i+1].node );
+ return 0.5 * ( l1 + l2 );
+ }
}
//=============================================================================
*/
//=============================================================================
-GMSHPlugin_Mesher::GMSHPlugin_Mesher (SMESH_Mesh* mesh,
- const TopoDS_Shape& aShape)
+GMSHPlugin_Mesher::GMSHPlugin_Mesher (SMESH_Mesh* mesh,
+ const TopoDS_Shape& aShape,
+ bool is2D,
+ bool is3D)
: _mesh (mesh),
- _shape (aShape)
+ _shape (aShape),
+ _is2d (is2D),
+ _is3d (is3D)
{
// il faudra peut être mettre un truc par defaut si l'utilisateur ne rentre rien en para
//defaultParameters();
_remeshPara = hyp->GetRemeshPara();
_smouthSteps = hyp->GetSmouthSteps();
_sizeFactor = hyp->GetSizeFactor();
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=10
+ _meshCurvatureSize = hyp->GetMeshCurvatureSize();
+#endif
_minSize = hyp->GetMinSize();
_maxSize = hyp->GetMaxSize();
_secondOrder = hyp->GetSecondOrder();
_useIncomplElem = hyp->GetUseIncomplElem();
- _is2d = hyp->GetIs2d();
+ _verbLvl = hyp->GetVerbosityLevel();
_compounds = hyp->GetCompoundOnEntries();
+ // 6 in the enum corresponds to 99 in gmsh
+ if(_verbLvl == 6)
+ _verbLvl = 99;
}
else
{
_remeshPara = 0;
_smouthSteps = 1;
_sizeFactor = 1;
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=10
+ _meshCurvatureSize = 0;
+#endif
_minSize = 0;
_maxSize = 1e22;
_secondOrder = false;
_useIncomplElem = true;
- _is2d = false;
_compounds.clear();
}
}
void GMSHPlugin_Mesher::SetMaxThreadsGmsh()
{
MESSAGE("GMSHPlugin_Mesher::SetMaxThreadsGmsh");
- if (_compounds.size() > 0)
+ // compound meshing (_compounds.size() > 0) and quad meshing (_algo2d >= 5) will
+ // not be multi-threaded
+ if (_compounds.size() > 0 || _algo2d >= 5){
_maxThreads = 1;
+ }
else
_maxThreads = omp_get_max_threads();
}
#endif
+
//================================================================================
/*!
- * \brief Set Gmsh Options
+ * \brief Check that the passed nodes are all IN the face
+ * \param element the element
+ * \param F the geom Face
+ * \param uvValues a vector of size elem->NbCornerNodes() to save the uv coordinate points on the face
+ * \return true if all the nodes are IN the face
*/
+ //================================================================================
+bool GMSHPlugin_Mesher::IsAllNodesInSameFace( const SMDS_MeshElement* element, const TopoDS_Face& F,
+ std::vector<gp_XY>& uvValues )
+{
+ Handle(ShapeAnalysis_Surface) sprojector = new ShapeAnalysis_Surface( BRep_Tool::Surface( F ));
+ double tol = BRep_Tool::MaxTolerance( F, TopAbs_FACE );
+ int nbN = element->NbCornerNodes();
+ gp_Pnt surfPnt(0,0,0);
+ for ( int i = 0; i < nbN; ++i )
+ {
+ SMESH_NodeXYZ nXYZ( element->GetNode( i ) );
+ gp_XY uv = sprojector->ValueOfUV( nXYZ, tol ).XY();
+ surfPnt = sprojector->Value( uv );
+ double dist = surfPnt.Distance( nXYZ );
+ if ( dist > tol )
+ return false;
+ else
+ uvValues[ i ] = uv;
+ }
+ return true;
+}
+
+//================================================================================
+/*!
+ * \brief Associate mesh elements to geometrical faces.
+ * \param the list of elements
+ * \return a map between faces (incremental order) and mesh elements found to be placed on the face
+ */
+ //================================================================================
+std::map<int,std::vector<std::tuple<smIdType,bool,std::vector<gp_XY>>>> GMSHPlugin_Mesher::AssociateElementsToFaces( std::map<const SMDS_MeshElement*, bool, TIDCompare>& listElements )
+{
+ // Map faces to elementId and uv of nodes.
+ // Index by face id
+ // Index vector with element smIdType, [ gp_XY_0, gp_XY_1, gp_XY_2 ]
+ std::map<int,std::vector<std::tuple<smIdType,bool,std::vector<gp_XY>>>> elementToFaceMap;
+ SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
+ for ( auto const& [elem, IsReverse] : listElements ) // loop on elements on a geom face
+ {
+ int nbN = elem->NbCornerNodes();
+ std::vector<gp_XY> uvValues(nbN);
+ if ( nbN > 4 /*this restriction might be eliminated. Have to adapt FillGeomMapMeshUsing2DMeshIterator function too */)
+ throw std::string("Polygon sub-meshes not supported");
+
+ int faceId = 1;
+ for( GModel::fiter it = _gModel->firstFace(); it != _gModel->lastFace(); ++it )
+ {
+ GFace *gFace = *it;
+ TopoDS_Face topoFace = *((TopoDS_Face*)gFace->getNativePtr());
+ if ( IsAllNodesInSameFace( elem, topoFace, uvValues ) )
+ {
+ elementToFaceMap[ faceId ].push_back( std::make_tuple( elem->GetID(), IsReverse, uvValues ) );
+ break;
+ }
+ faceId++;
+ }
+ }
+ return elementToFaceMap;
+}
+
+//================================================================================
+/*!
+ * \brief Add the elements found associated to the face as gmsh elements
+ */
+ //================================================================================
+void GMSHPlugin_Mesher::Set2DMeshes( std::vector< const SMDS_MeshNode* >& nodeVec, std::map<const SMDS_MeshElement*, bool, TIDCompare>& listElements )
+{
+ std::map< const SMDS_MeshNode* , const MVertex * > nodes2mvertMap;
+ SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
+ auto elementToFaceMap = AssociateElementsToFaces( listElements );
+ int faceId = 1;
+ std::vector<MVertex *> mVertices;
+
+ for(GModel::fiter it = _gModel->firstFace(); it != _gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+ gFace->deleteMesh();
+
+ auto element2uv = elementToFaceMap.find( faceId )->second;
+
+ const int numberOfEntries = element2uv.size();
+
+ for (int el = 0; el < numberOfEntries; el++)
+ {
+ const smIdType elementId = std::get<0>( element2uv[ el ] ); // smesh element id
+ bool isReverse = std::get<1>( element2uv[ el ] );
+ const SMDS_MeshElement* elem = meshDS->FindElement( elementId );
+
+ int nbN = elem->NbCornerNodes();
+ mVertices.resize( nbN );
+
+ for ( int i = 0; i < nbN; ++i )
+ {
+ const SMDS_MeshNode* n = elem->GetNode( i );
+ MVertex * mv = nullptr;
+ auto n2v = nodes2mvertMap.find( n );
+ if ( n2v != nodes2mvertMap.end() )
+ {
+ mv = const_cast< MVertex*>( n2v->second );
+ }
+ else
+ {
+ if ( n->GetPosition()->GetDim() < 2 )
+ throw std::string("Wrong mapping of edge nodes to GMSH nodes");
+ SMESH_NodeXYZ xyz = n;
+ gp_XY uv = std::get<2>(element2uv[ el ])[ i ];
+ mv = new MFaceVertex( xyz.X(), xyz.Y(), xyz.Z(), gFace, uv.X(), uv.Y() );
+ gFace->mesh_vertices.push_back( mv );
+ nodes2mvertMap.insert({ n, mv });
+ _nodeMap.insert ({ mv, n });
+ _premeshednodeMap.insert({ mv, n });
+ }
+ mVertices[ i ] = mv;
+ }
+ // create GMSH mesh faces
+ switch ( nbN ) {
+ case 3:
+ if ( isReverse )
+ gFace->triangles.push_back (new MTriangle(mVertices[0], mVertices[2], mVertices[1]));
+ else
+ gFace->triangles.push_back (new MTriangle(mVertices[0], mVertices[1], mVertices[2]));
+ break;
+ case 4:
+ if ( isReverse )
+ gFace->quadrangles.push_back (new MQuadrangle(mVertices[0], mVertices[3],
+ mVertices[2], mVertices[1]));
+ else
+ gFace->quadrangles.push_back (new MQuadrangle(mVertices[0], mVertices[1],
+ mVertices[2], mVertices[3]));
+ break;
+ default:;
+ }
+ }
+ faceId++; // face counter
+ } // iterator in the face
+
+ // Fill the node
+ nodeVec.resize( nodes2mvertMap.size() + 1, 0 );
+ int count = 1;
+ for (auto k : nodes2mvertMap )
+ {
+ nodeVec[ count ] = k.first; // Index the node id to the smesh node itself
+ count++;
+ }
+}
+
+
//================================================================================
+/*!
+ * \brief Initialize GMSH model with mesh elements as geometry objects.
+ * Nodes are vertexes and element connections are geom lines
+ */
+ //================================================================================
+void GMSHPlugin_Mesher::FillGeomMapMeshUsing2DMeshIterator( std::map<const SMDS_MeshElement*, bool, TIDCompare>& listElements )
+{
+ gmsh::initialize();
+ gmsh::model::add("mesh");
+ // typedef for maps
+ typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
+ typedef TNodeToIDMap::value_type TN2ID;
+ typedef map<std::pair<int, int>, int> TLineToIDMap;
+ TNodeToIDMap aNodeToID;
+ TLineToIDMap aLineToID;
+
+ int aNbOfNodes = 0;
+ int aNbOfLines = 0;
+
+ const int invalid_ID = -1;
+ std::vector<int> aTrinagle( 3, 0 );
+
+ // Playing around with SMESHDS_Mesh structure
+ SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
+
+ for ( auto const& [elem, IsReverse] : listElements ) // loop on elements on a geom face
+ {
+ if ( elem->NbCornerNodes() != 3 )
+ return;
+
+ for (int iN = 0; iN < 3; ++iN)
+ {
+ const SMDS_MeshNode* aNode = elem->GetNode(iN);
+
+ int& ngID = aNodeToID.insert(TN2ID(aNode, invalid_ID)).first->second;
+ if (ngID == invalid_ID)
+ {
+ ngID = ++aNbOfNodes;
+ gmsh::model::occ::addPoint(aNode->X(), aNode->Y(), aNode->Z(), 1.e-2, ngID);
+ }
+
+ aTrinagle[ IsReverse ? 2 - iN : iN ] = ngID;
+ }
+ // add triangle
+ if ((aTrinagle[0] == aTrinagle[1] ||
+ aTrinagle[0] == aTrinagle[2] ||
+ aTrinagle[2] == aTrinagle[1]))
+ continue;
+
+ std::vector<int> LinesID(3, 0);
+ for (int anIndex = 0; anIndex < 3; ++anIndex)
+ {
+ int aNextIndex = (anIndex + 1) % 3;
+ if (aLineToID.find({ aTrinagle[anIndex], aTrinagle[aNextIndex] }) == aLineToID.end()
+ && aLineToID.find({ aTrinagle[aNextIndex], aTrinagle[anIndex] }) == aLineToID.end())
+ {
+ LinesID[anIndex] = aLineToID.insert({ { aTrinagle[aNextIndex], aTrinagle[anIndex] }, ++aNbOfLines }).first->second;
+ gmsh::model::occ::addLine(aTrinagle[anIndex], aTrinagle[aNextIndex], LinesID[anIndex]);
+ }
+ else
+ {
+ LinesID[anIndex] = aLineToID.find({ aTrinagle[anIndex], aTrinagle[aNextIndex] })->second;
+ if (LinesID[anIndex] == 0)
+ LinesID[anIndex] = aLineToID.find({ aTrinagle[aNextIndex], aTrinagle[anIndex] })->second;
+
+ }
+ }
+ // if (!aProxyMesh->IsTemporary(ls.first))
+ // swap(aTrinagle[1], aTrinagle[2]);
+ gmsh::model::occ::addCurveLoop(LinesID);
+ }
+}
+
+//================================================================================
+/*!
+ * \brief Initialize GMSH model
+ */
+ //================================================================================
+void GMSHPlugin_Mesher::FillGMSHMesh()
+{
+ gmsh::initialize();
+ gmsh::model::add("mesh");
+
+ SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
+
+ int aNbOfNodes = 0;
+ int aNbOfLines = 0;
+ std::vector<int> aTrinagle(3, 0);
+
+ const int invalid_ID = -1;
+
+ // typedef for maps
+ typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
+ typedef TNodeToIDMap::value_type TN2ID;
+ typedef map<std::pair<int, int>, int> TLineToIDMap;
+ TNodeToIDMap aNodeToID;
+ TLineToIDMap aLineToID;
+
+ TopAbs_ShapeEnum aMainType = _mesh->GetShapeToMesh().ShapeType();
+ bool aCheckReverse = (aMainType == TopAbs_COMPOUND || aMainType == TopAbs_COMPSOLID);
+
+ SMESH_MesherHelper aHelper(*_mesh);
+ SMESH_ProxyMesh::Ptr aProxyMesh(new SMESH_ProxyMesh(*_mesh));
+ if (_mesh->NbQuadrangles() > 0)
+ {
+ StdMeshers_QuadToTriaAdaptor* Adaptor = new StdMeshers_QuadToTriaAdaptor;
+ Adaptor->Compute(*_mesh, _shape, aProxyMesh.get());
+ aProxyMesh.reset(Adaptor);
+ }
+
+ std::map<const SMDS_MeshElement*, bool, TIDCompare> listElements;
+ for (TopExp_Explorer exFa(_shape, TopAbs_FACE); exFa.More(); exFa.Next())
+ {
+ const TopoDS_Shape& aShapeFace = exFa.Current();
+ int faceID = meshDS->ShapeToIndex(aShapeFace);
+ bool isRev = false;
+ if (aCheckReverse && aHelper.NbAncestors(aShapeFace, *_mesh, _shape.ShapeType()) > 1)
+ // IsReversedSubMesh() can work wrong on strongly curved faces,
+ // so we use it as less as possible
+ isRev = aHelper.IsReversedSubMesh(TopoDS::Face(aShapeFace));
+
+ const SMESHDS_SubMesh* aSubMeshDSFace = aProxyMesh->GetSubMesh(aShapeFace);
+ if (!aSubMeshDSFace)
+ continue;
+ SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
+ if (aHelper.IsQuadraticSubMesh(_shape) &&
+ dynamic_cast<const SMESH_ProxyMesh::SubMesh*>(aSubMeshDSFace))
+ {
+ // add medium nodes of proxy triangles to helper
+ while (iteratorElem->more())
+ aHelper.AddTLinks(static_cast<const SMDS_MeshFace*>(iteratorElem->next()));
+
+ iteratorElem = aSubMeshDSFace->GetElements();
+ }
+ while (iteratorElem->more()) // loop on elements on a geom face
+ {
+ // check mesh face
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ if (!elem)
+ return;
+ if (elem->NbCornerNodes() != 3)
+ return;
+ listElements[elem] = isRev;
+ }
+ }
+
+ for (auto const& ls : listElements)
+ {
+ // Add nodes of triangles and triangles them-selves to netgen mesh
+ // add three nodes of
+ bool hasDegen = false;
+ for (int iN = 0; iN < 3; ++iN)
+ {
+ const SMDS_MeshNode* aNode = ls.first->GetNode(iN);
+ const int shapeID = aNode->getshapeId();
+ if (aNode->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
+ aHelper.IsDegenShape(shapeID))
+ {
+ // ignore all nodes on degeneraged edge and use node on its vertex instead
+ TopoDS_Shape vertex = TopoDS_Iterator(meshDS->IndexToShape(shapeID)).Value();
+ aNode = SMESH_Algo::VertexNode(TopoDS::Vertex(vertex), meshDS);
+ hasDegen = true;
+ }
+ int& ngID = aNodeToID.insert(TN2ID(aNode, invalid_ID)).first->second;
+ if (ngID == invalid_ID)
+ {
+ ngID = ++aNbOfNodes;
+ gmsh::model::occ::addPoint(aNode->X(), aNode->Y(), aNode->Z(), 1.e-2, ngID);
+ }
+ aTrinagle[ls.second ? 2 - iN : iN] = ngID;
+ }
+ // add triangle
+ if (hasDegen && (aTrinagle[0] == aTrinagle[1] ||
+ aTrinagle[0] == aTrinagle[2] ||
+ aTrinagle[2] == aTrinagle[1]))
+ continue;
+
+
+ std::vector<int> LinesID(3, 0);
+ for (int anIndex = 0; anIndex < 3; ++anIndex)
+ {
+ int aNextIndex = (anIndex + 1) % 3;
+ if (aLineToID.find({ aTrinagle[anIndex], aTrinagle[aNextIndex] }) == aLineToID.end()
+ && aLineToID.find({ aTrinagle[aNextIndex], aTrinagle[anIndex] }) == aLineToID.end())
+ {
+ LinesID[anIndex] = aLineToID.insert({ { aTrinagle[aNextIndex], aTrinagle[anIndex] }, ++aNbOfLines }).first->second;
+ gmsh::model::occ::addLine(aTrinagle[anIndex], aTrinagle[aNextIndex], LinesID[anIndex]);
+ }
+ else
+ {
+ LinesID[anIndex] = aLineToID.find({ aTrinagle[anIndex], aTrinagle[aNextIndex] })->second;
+ if (LinesID[anIndex] == 0)
+ LinesID[anIndex] = aLineToID.find({ aTrinagle[aNextIndex], aTrinagle[anIndex] })->second;
+
+ }
+ }
+ if (!aProxyMesh->IsTemporary(ls.first))
+ swap(aTrinagle[1], aTrinagle[2]);
+ gmsh::model::occ::addCurveLoop(LinesID);
+ }
+
+ // Generate 1D and 2D mesh
+ _gModel->mesh( /*dim=*/ 1);
+ Set1DSubMeshes(_gModel);
+ _gModel->mesh( /*dim=*/ 2);
+}
+
+//================================================================================
+/*!
+ * \brief Set Gmsh Options
+ */
+ //================================================================================
void GMSHPlugin_Mesher::SetGmshOptions()
{
MESSAGE("GMSHPlugin_Mesher::SetGmshOptions");
mapAlgo2d[3]=6; // Frontal-Delaunay
mapAlgo2d[4]=8; // DelQuad (Frontal-Delaunay for Quads)
mapAlgo2d[5]=9; // Packing of parallelograms
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=10
+ mapAlgo2d[6]=11;// Quasistructured quads with cross-fields
+#endif
std::map <int,double> mapAlgo3d;
mapAlgo3d[0]=1; // Delaunay
//ASSERT(ok);
ok = GmshSetOption("Mesh", "Smoothing" , (double)_smouthSteps) ;
//ASSERT(ok);
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=10
+ ok = GmshSetOption("Mesh", "MeshSizeFromCurvature" , _meshCurvatureSize) ;
+ ASSERT(ok);
+#endif
#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
ok = GmshSetOption("Mesh", "MeshSizeFactor" , _sizeFactor) ;
ASSERT(ok);
ASSERT(ok);
}
+ ok = GmshSetOption("General", "Verbosity" , (double) _verbLvl ) ; // Verbosity level
+ ASSERT(ok);
+
#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
/*ok = GmshSetOption("Mesh", "MaxNumThreads1D" , 0. ) ; // Coarse-grain algo threads
ASSERT(ok);
**/
ok = GmshSetOption("General", "NumThreads" , _maxThreads ) ; // system default i.e. OMP_NUM_THREADS
ASSERT(ok);
+#ifdef WIN32
+ if ( GMSHPlugin_Hypothesis::Algo3D::hxt == _algo3d ){
+ MESSAGE("GMSHPlugin_Mesher::SetGmshOptions: HXT algorithm is being used. Setting number of threads to 1.");
+ ok = GmshSetOption("Mesh", "MaxNumThreads3D" , 1. );
+ ASSERT(ok);
+ } // hxt
+#endif
#endif
}
for( auto itV = bndVerticies.begin(); itV != bndVerticies.end(); ++itV )
{
- if(((*itE)->compound.size()))
- (*itV)->setVisibility(0);
- else
- (*itV)->setVisibility(1);
+ if(((*itE)->compound.size()))
+ (*itV)->setVisibility(0);
+ else
+ (*itV)->setVisibility(1);
}
}
}
#endif
+//================================================================================
+/*!
+ * \brief Get a node by a GMSH mesh vertex
+ */
+//================================================================================
+
+const SMDS_MeshNode* GMSHPlugin_Mesher::Node( const MVertex* v )
+{
+ std::map< const MVertex *, const SMDS_MeshNode* >::iterator v2n = _nodeMap.find( v );
+ if ( v2n != _nodeMap.end() )
+ return v2n->second;
+
+ return nullptr;
+}
+
+//================================================================================
+/*!
+ * \brief Get a node by a GMSH mesh vertex
+ */
+//================================================================================
+
+const SMDS_MeshNode* GMSHPlugin_Mesher::PremeshedNode( const MVertex* v )
+{
+ std::map< const MVertex *, const SMDS_MeshNode* >::iterator v2n = _premeshednodeMap.find( v );
+ if ( v2n != _premeshednodeMap.end() )
+ return v2n->second;
+
+ return nullptr;
+}
+
+
+//================================================================================
+/*!
+ * \brief Return a corresponding sub-mesh if a shape is meshed
+ */
+//================================================================================
+
+SMESHDS_SubMesh* GMSHPlugin_Mesher::HasSubMesh( const TopoDS_Shape& s )
+{
+ if ( SMESHDS_SubMesh* sm = _mesh->GetMeshDS()->MeshElements( s ))
+ {
+ if ( s.ShapeType() == TopAbs_VERTEX )
+ return ( sm->NbNodes() > 0 ) ? sm : nullptr;
+ else
+ return ( sm->NbElements() > 0 ) ? sm : nullptr;
+ }
+ return nullptr;
+}
+
//================================================================================
/*!
* \brief Write mesh from GModel instance to SMESH instance
// FILL SMESH FOR topoVertex
//nodes
- for(unsigned int i = 0; i < gVertex->mesh_vertices.size(); i++)
+ for( size_t i = 0; i < gVertex->mesh_vertices.size(); i++)
{
MVertex *v = gVertex->mesh_vertices[i];
if(v->getIndex() >= 0)
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(v->x(),v->y(),v->z(),v->getNum());
- meshDS->SetNodeOnVertex( node, topoVertex );
+ if ( SMESHDS_SubMesh* sm = HasSubMesh( topoVertex ))
+ {
+ const SMDS_MeshNode *node = sm->GetNodes()->next();
+ _nodeMap.insert({ v, node });
+ }
+ else
+ {
+ SMDS_MeshNode *node = meshDS->AddNode( v->x(),v->y(),v->z() );
+ meshDS->SetNodeOnVertex( node, topoVertex );
+ _nodeMap.insert({ v, node });
+ }
}
}
// WE DON'T ADD 0D ELEMENTS because it does not follow the salome meshers philosophy
sm->SetIsAlwaysComputed(true); // prevent from displaying errors
continue;
}
+ if ( HasSubMesh( topoEdge ))
+ continue; // a meshed sub-mesh
}
bool isCompound = getBoundsOfShapes( gEdge, topoEdges );
MVertex *v = gEdge->mesh_vertices[i];
if ( v->getIndex() >= 0 )
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(v->x(),v->y(),v->z(),v->getNum());
+ SMDS_MeshNode *node = meshDS->AddNode( v->x(),v->y(),v->z() );
if ( isCompound )
topoEdge = TopoDS::Edge( getShapeAtPoint( v->point(), topoEdges ));
- meshDS->SetNodeOnEdge( node, topoEdge );
+ // Based on BLSURFPlugin_BLSURF
+ gp_Pnt point3D( v->x(),v->y(),v->z() );
+ Standard_Real p0 = 0.0;
+ Standard_Real p1 = 1.0;
+ TopLoc_Location loc;
+ Handle(Geom_Curve) curve = BRep_Tool::Curve(topoEdge, loc, p0, p1);
+
+ if ( !curve.IsNull() )
+ {
+ if ( !loc.IsIdentity() )
+ point3D.Transform( loc.Transformation().Inverted() );
+
+ GeomAPI_ProjectPointOnCurve proj(point3D, curve, p0, p1);
+
+ double pa = 0.;
+ if ( proj.NbPoints() > 0 )
+ pa = (double)proj.LowerDistanceParameter();
+
+ meshDS->SetNodeOnEdge( node, topoEdge, pa );
+ }
+ else
+ {
+ meshDS->SetNodeOnEdge( node, topoEdge );
+ }
+ //END on BLSURFPlugin_BLSURF
+
+
+ _nodeMap.insert({ v, node });
}
}
}
if ( !isCompound )
topoEdge = *((TopoDS_Edge*)gEdge->getNativePtr());
+ if ( HasSubMesh( topoEdge ))
+ continue; // a meshed sub-mesh
+
//elements
std::vector<MVertex*> verts(3);
for ( size_t i = 0; i < gEdge->getNumMeshElements(); i++ )
{
if ( verts[j]->onWhat()->getVisibility() == 0 )
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(verts[i]->x(),verts[j]->y(),verts[j]->z(),verts[j]->getNum());
- meshDS->SetNodeOnEdge( node, topoEdge );
+ SMDS_MeshNode *node = meshDS->AddNode(verts[j]->x(),verts[j]->y(),verts[j]->z() );
+
+ gp_Pnt point3D( verts[j]->x(),verts[j]->y(),verts[j]->z() );
+ Standard_Real p0 = 0.0;
+ Standard_Real p1 = 1.0;
+ TopLoc_Location loc;
+ Handle(Geom_Curve) curve = BRep_Tool::Curve(topoEdge, loc, p0, p1);
+
+ if ( !curve.IsNull() )
+ {
+ if ( !loc.IsIdentity() )
+ point3D.Transform( loc.Transformation().Inverted() );
+
+ GeomAPI_ProjectPointOnCurve proj(point3D, curve, p0, p1);
+
+ double pa = 0.;
+ if ( proj.NbPoints() > 0 )
+ pa = (double)proj.LowerDistanceParameter();
+
+ meshDS->SetNodeOnEdge( node, topoEdge, pa );
+ }
+ else
+ {
+ meshDS->SetNodeOnEdge( node, topoEdge );
+ }
+
verts[j]->setEntity(gEdge);
+ _nodeMap.insert({ verts[j], node });
}
}
switch (verts.size())
{
case 2:
- edge = meshDS->AddEdgeWithID(verts[0]->getNum(),
- verts[1]->getNum(),e->getNum());
+ edge = meshDS->AddEdge(Node( verts[0]),
+ Node( verts[1]));
break;
case 3:
- edge = meshDS->AddEdgeWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),e->getNum());
+ edge = meshDS->AddEdge(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]));
break;
default:
ASSERT(false);
// compounds are involved. Since in Gmsh meshing procedure needs acess
// to each of the original topology and the meshed topology. Hence we
// bypass the additional mesh in case of compounds. Note, similar cri-
- // teria also occus in the following 'for' loop.
+ // teria also occurs in the following 'for' loop.
if ( _compounds.size() && gFace->geomType() == GEntity::DiscreteSurface )
continue;
#endif
sm->SetIsAlwaysComputed(true); // prevent from displaying errors
continue;
}
+ if ( HasSubMesh( topoFace ))
+ continue; // a meshed sub-mesh
}
bool isCompound = getBoundsOfShapes( gFace, topoFaces );
MVertex *v = gFace->mesh_vertices[i];
if ( v->getIndex() >= 0 )
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(v->x(),v->y(),v->z(),v->getNum());
+ SMDS_MeshNode *node = meshDS->AddNode( v->x(),v->y(),v->z() );
if ( isCompound )
topoFace = TopoDS::Face( getShapeAtPoint( v->point(), topoFaces ));
meshDS->SetNodeOnFace( node, topoFace );
+ _nodeMap.insert({ v, node });
}
}
}
else
topoFace = *((TopoDS_Face*)gFace->getNativePtr());
+ if ( HasSubMesh( topoFace ))
+ continue; // a meshed sub-mesh
+
//elements
std::vector<MVertex*> verts;
for ( size_t i = 0; i < gFace->getNumMeshElements(); i++ )
{
if(verts[j]->onWhat()->getVisibility() == 0)
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(verts[j]->x(),verts[j]->y(),verts[j]->z(),verts[j]->getNum());
+ SMDS_MeshNode *node = meshDS->AddNode(verts[j]->x(),verts[j]->y(),verts[j]->z());
meshDS->SetNodeOnFace( node, topoFace );
- verts[i]->setEntity(gFace);
+ _nodeMap.insert({ verts[j], node });
+ verts[j]->setEntity(gFace);
}
}
switch (verts.size())
{
case 3:
- face = meshDS->AddFaceWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),e->getNum());
+ face = meshDS->AddFace(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]));
break;
case 4:
- face = meshDS->AddFaceWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),
- verts[3]->getNum(),e->getNum());
+ face = meshDS->AddFace(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]),
+ Node( verts[3]));
break;
case 6:
- face = meshDS->AddFaceWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),
- verts[3]->getNum(),
- verts[4]->getNum(),
- verts[5]->getNum(),e->getNum());
+ face = meshDS->AddFace(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]),
+ Node( verts[3]),
+ Node( verts[4]),
+ Node( verts[5]));
break;
case 8:
- face = meshDS->AddFaceWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),
- verts[3]->getNum(),
- verts[4]->getNum(),
- verts[5]->getNum(),
- verts[6]->getNum(),
- verts[7]->getNum(),e->getNum());
+ face = meshDS->AddFace(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]),
+ Node( verts[3]),
+ Node( verts[4]),
+ Node( verts[5]),
+ Node( verts[6]),
+ Node( verts[7]));
break;
case 9:
- face = meshDS->AddFaceWithID(verts[0]->getNum(),
- verts[1]->getNum(),
- verts[2]->getNum(),
- verts[3]->getNum(),
- verts[4]->getNum(),
- verts[5]->getNum(),
- verts[6]->getNum(),
- verts[7]->getNum(),
- verts[8]->getNum(),e->getNum());
+ face = meshDS->AddFace(Node( verts[0]),
+ Node( verts[1]),
+ Node( verts[2]),
+ Node( verts[3]),
+ Node( verts[4]),
+ Node( verts[5]),
+ Node( verts[6]),
+ Node( verts[7]),
+ Node( verts[8]));
break;
default:
ASSERT(false);
// FILL SMESH FOR topoSolid
//nodes
- for(unsigned int i = 0; i < gRegion->mesh_vertices.size(); i++)
+ for( size_t i = 0; i < gRegion->mesh_vertices.size(); i++)
{
MVertex *v = gRegion->mesh_vertices[i];
if(v->getIndex() >= 0)
{
- SMDS_MeshNode *node = meshDS->AddNodeWithID(v->x(),v->y(),v->z(),v->getNum());
+ SMDS_MeshNode *node = meshDS->AddNode( v->x(),v->y(),v->z() );
meshDS->SetNodeInVolume( node, topoSolid );
+ _nodeMap.insert({ v, node });
}
}
//elements
std::vector<MVertex*> verts;
- for(unsigned int i = 0; i < gRegion->getNumMeshElements(); i++)
+ for( size_t i = 0; i < gRegion->getNumMeshElements(); i++)
{
MElement *e = gRegion->getMeshElement(i);
verts.clear();
e->getVertices(verts);
SMDS_MeshVolume* volume = 0;
switch (verts.size()){
- case 4:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[3]->getNum(),e->getNum());
- break;
- case 5:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),e->getNum());
- break;
- case 6:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[3]->getNum(),
- verts[5]->getNum(),
- verts[4]->getNum(),e->getNum());
- break;
- case 8:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[6]->getNum(),
- verts[5]->getNum(),e->getNum());
- break;
- case 10:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[3]->getNum(),
- verts[6]->getNum(),
- verts[5]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[8]->getNum(),
- verts[9]->getNum(),e->getNum());
- break;
- case 13:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),
- verts[6]->getNum(),
- verts[10]->getNum(),
- verts[8]->getNum(),
- verts[5]->getNum(),
- verts[7]->getNum(),
- verts[12]->getNum(),
- verts[11]->getNum(),
- verts[9]->getNum(),e->getNum());
- break;
- case 14: // same as case 13, because no pyra14 in smesh
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),
- verts[6]->getNum(),
- verts[10]->getNum(),
- verts[8]->getNum(),
- verts[5]->getNum(),
- verts[7]->getNum(),
- verts[12]->getNum(),
- verts[11]->getNum(),
- verts[9]->getNum(),e->getNum());
- break;
- case 15:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[3]->getNum(),
- verts[5]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[9]->getNum(),
- verts[6]->getNum(),
- verts[13]->getNum(),
- verts[14]->getNum(),
- verts[12]->getNum(),
- verts[8]->getNum(),
- verts[11]->getNum(),
- verts[10]->getNum(),e->getNum());
- break;
- case 18: // same as case 15, because no penta18 in smesh
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[3]->getNum(),
- verts[5]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[9]->getNum(),
- verts[6]->getNum(),
- verts[13]->getNum(),
- verts[14]->getNum(),
- verts[12]->getNum(),
- verts[8]->getNum(),
- verts[11]->getNum(),
- verts[10]->getNum(),e->getNum());
- break;
- case 20:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[6]->getNum(),
- verts[5]->getNum(),
- verts[9]->getNum(),
- verts[13]->getNum(),
- verts[11]->getNum(),
- verts[8]->getNum(),
- verts[17]->getNum(),
- verts[19]->getNum(),
- verts[18]->getNum(),
- verts[16]->getNum(),
- verts[10]->getNum(),
- verts[15]->getNum(),
- verts[14]->getNum(),
- verts[12]->getNum(),e->getNum());
- break;
- case 27:
- volume = meshDS->AddVolumeWithID(verts[0]->getNum(),
- verts[3]->getNum(),
- verts[2]->getNum(),
- verts[1]->getNum(),
- verts[4]->getNum(),
- verts[7]->getNum(),
- verts[6]->getNum(),
- verts[5]->getNum(),
- verts[9]->getNum(),
- verts[13]->getNum(),
- verts[11]->getNum(),
- verts[8]->getNum(),
- verts[17]->getNum(),
- verts[19]->getNum(),
- verts[18]->getNum(),
- verts[16]->getNum(),
- verts[10]->getNum(),
- verts[15]->getNum(),
- verts[14]->getNum(),
- verts[12]->getNum(),
- verts[20]->getNum(),
- verts[22]->getNum(),
- verts[24]->getNum(),
- verts[23]->getNum(),
- verts[21]->getNum(),
- verts[25]->getNum(),
- verts[26]->getNum(),
- e->getNum());
- break;
- default:
- ASSERT(false);
- continue;
+ case 4:
+ volume = meshDS->AddVolume(Node( verts[0]),
+ Node( verts[2]),
+ Node( verts[1]),
+ Node( verts[3]));
+ break;
+ case 5:
+ volume = meshDS->AddVolume(Node( verts[0]),
+ Node( verts[3]),
+ Node( verts[2]),
+ Node( verts[1]),
+ Node( verts[4]));
+ break;
+ case 6:
+ volume = meshDS->AddVolume(Node( verts[0]),
+ Node( verts[2]),
+ Node( verts[1]),
+ Node( verts[3]),
+ Node( verts[5]),
+ Node( verts[4]));
+ break;
+ case 8:
+ volume = meshDS->AddVolume(Node( verts[0]),
+ Node( verts[3]),
+ Node( verts[2]),
+ Node( verts[1]),
+ Node( verts[4]),
+ Node( verts[7]),
+ Node( verts[6]),
+ Node( verts[5]));
+ break;
+ case 10:
+ volume = meshDS->AddVolume(Node( verts[0]),
+ Node( verts[2]),
+ Node( verts[1]),
+ Node( verts[3]),
+ Node( verts[6]),
+ Node( verts[5]),
+ Node( verts[4]),
+ Node( verts[7]),
+ Node( verts[8]),
+ Node( verts[9]));
+ break;
+ case 13:
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[3] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[4] ),
+ Node( verts[6] ),
+ Node( verts[10] ),
+ Node( verts[8] ),
+ Node( verts[5] ),
+ Node( verts[7] ),
+ Node( verts[12] ),
+ Node( verts[11] ),
+ Node( verts[9]));
+ break;
+ case 14: // same as case 13, because no pyra14 in smesh
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[3] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[4] ),
+ Node( verts[6] ),
+ Node( verts[10] ),
+ Node( verts[8] ),
+ Node( verts[5] ),
+ Node( verts[7] ),
+ Node( verts[12] ),
+ Node( verts[11] ),
+ Node( verts[9]));
+ break;
+ case 15:
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[3] ),
+ Node( verts[5] ),
+ Node( verts[4] ),
+ Node( verts[7] ),
+ Node( verts[9] ),
+ Node( verts[6] ),
+ Node( verts[13] ),
+ Node( verts[14] ),
+ Node( verts[12] ),
+ Node( verts[8] ),
+ Node( verts[11] ),
+ Node( verts[10]));
+ break;
+ case 18: // same as case 15, because no penta18 in smesh
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[3] ),
+ Node( verts[5] ),
+ Node( verts[4] ),
+ Node( verts[7] ),
+ Node( verts[9] ),
+ Node( verts[6] ),
+ Node( verts[13] ),
+ Node( verts[14] ),
+ Node( verts[12] ),
+ Node( verts[8] ),
+ Node( verts[11] ),
+ Node( verts[10]));
+ break;
+ case 20:
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[3] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[4] ),
+ Node( verts[7] ),
+ Node( verts[6] ),
+ Node( verts[5] ),
+ Node( verts[9] ),
+ Node( verts[13] ),
+ Node( verts[11] ),
+ Node( verts[8] ),
+ Node( verts[17] ),
+ Node( verts[19] ),
+ Node( verts[18] ),
+ Node( verts[16] ),
+ Node( verts[10] ),
+ Node( verts[15] ),
+ Node( verts[14] ),
+ Node( verts[12]));
+ break;
+ case 27:
+ volume = meshDS->AddVolume(Node( verts[0] ),
+ Node( verts[3] ),
+ Node( verts[2] ),
+ Node( verts[1] ),
+ Node( verts[4] ),
+ Node( verts[7] ),
+ Node( verts[6] ),
+ Node( verts[5] ),
+ Node( verts[9] ),
+ Node( verts[13] ),
+ Node( verts[11] ),
+ Node( verts[8] ),
+ Node( verts[17] ),
+ Node( verts[19] ),
+ Node( verts[18] ),
+ Node( verts[16] ),
+ Node( verts[10] ),
+ Node( verts[15] ),
+ Node( verts[14] ),
+ Node( verts[12] ),
+ Node( verts[20] ),
+ Node( verts[22] ),
+ Node( verts[24] ),
+ Node( verts[23] ),
+ Node( verts[21] ),
+ Node( verts[25] ),
+ Node( verts[26] ));
+ break;
+ default:
+ ASSERT(false);
+ continue;
}
meshDS->SetMeshElementOnShape(volume, topoSolid);
}
}
}
+bool GMSHPlugin_Mesher::Compute3D( std::vector< const SMDS_MeshNode* >& nodeVec, std::map<const SMDS_MeshElement*, bool, TIDCompare>& listElements, bool addElements )
+{
+ MESSAGE("GMSHPlugin_Mesher::Compute3D");
+ int err = 0;
+ _maxThreads = 1;
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=3
+ _maxThreads = 1;
+#endif
+
+ char* argv[] = {"-noenv"};
+ GmshInitialize(1,argv);
+ SetGmshOptions();
+ _gModel = new GModel();
+ mymsg msg(_gModel);
+ GmshSetMessageHandler(&msg);
+
+ _gModel->importOCCShape((void*)&_shape);
+ try
+ {
+ HideComputedEntities( _gModel, true );
+ // fill geometry with elements as geom objects
+ FillGeomMapMeshUsing2DMeshIterator( listElements );
+ Set2DMeshes( nodeVec, listElements );
+ _gModel->mesh( /*dim=*/ 3);
+ }
+ catch (std::string& str)
+ {
+ err = 1;
+ MESSAGE(str);
+ }
+ catch (...)
+ {
+ err = 1;
+ MESSAGE("Unrecoverable error during Generation of Gmsh Mesh");
+ }
+
+ if (!err)
+ {
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if (_compounds.size() > 0)
+ SetCompoundMeshVisibility();
+#endif
+ }
+
+ if ( addElements )
+ FillSMesh();
+ MESSAGE("GMSHPlugin_Mesher::Compute3D:End");
+ return err;
+}
+
+void GMSHPlugin_Mesher::finalizeGModel()
+{
+ if ( _gModel )
+ {
+ GmshSetMessageHandler(nullptr);
+ delete _gModel;
+ GmshFinalize();
+ }
+}
+
//=============================================================================
/*!
* Here we are going to use the GMSH mesher
#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
SetMaxThreadsGmsh();
#endif
- GmshInitialize();
+ //RNV: to avoid modification of PATH and PYTHONPATH
+ char* argv[] = {"-noenv"};
+ GmshInitialize(1,argv);
SetGmshOptions();
_gModel = new GModel();
mymsg msg(_gModel);
GmshSetMessageHandler(&msg);
_gModel->importOCCShape((void*)&_shape);
if (_compounds.size() > 0) CreateGmshCompounds();
- MESSAGE("GModel::Mesh");
try
{
- _gModel->mesh((_is2d)?2:3);
+
+ HideComputedEntities(_gModel);
+ if (_is3d)
+ {
+ FillGMSHMesh();
+ Set2DSubMeshes(_gModel);
+ _gModel->mesh( /*dim=*/ 3);
+ }
+ else
+ {
+ //CTX::instance()->mesh.maxNumThreads1D=1;
+ _gModel->mesh( /*dim=*/ 1);
+
+ Set1DSubMeshes(_gModel);
+
+ //_gModel->writeUNV("/tmp/1D.unv", 1,0,0);
+ //CTX::instance()->mesh.maxNumThreads2D=1;
+
+ _gModel->mesh( /*dim=*/ 2);
+
+ if (!_is2d)
+ {
+ Set2DSubMeshes(_gModel);
+
+ //CTX::instance()->mesh.maxNumThreads3D=1;
+
+ _gModel->mesh( /*dim=*/ 3);
+ }
+ RestoreVisibility(_gModel);
+ }
#ifdef WITH_SMESH_CANCEL_COMPUTE
#endif
catch (std::string& str)
{
err = 1;
+ std::cerr << "GMSH: exception caught: " << str << std::endl;
MESSAGE(str);
}
catch (...)
{
err = 1;
+ std::cerr << "GMSH: Unknown exception caught: " << std::endl;
MESSAGE("Unrecoverable error during Generation of Gmsh Mesh");
}
#endif
FillSMesh();
}
+ GmshSetMessageHandler(nullptr);
delete _gModel;
GmshFinalize();
MESSAGE("GMSHPlugin_Mesher::Compute:End");
return !err;
}
+
+//================================================================================
+/*!
+ * \brief Set 1D sub-meshes to GModel. GMSH 1D mesh is made by now.
+ * \param [inout] _gModel - GMSH model
+ */
+//================================================================================
+
+void GMSHPlugin_Mesher::Set1DSubMeshes( GModel* gModel )
+{
+ SMESHDS_Mesh* meshDS = _mesh->GetMeshDS();
+
+ for(GModel::eiter it = gModel->firstEdge(); it != gModel->lastEdge(); ++it)
+ {
+ GEdge *gEdge = *it;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if ( !gEdge->haveParametrization())
+#else
+ if ( gEdge->geomType() == GEntity::CompoundCurve )
+#endif
+ continue;
+
+ TopoDS_Edge topoEdge = *((TopoDS_Edge*)gEdge->getNativePtr());
+ if ( !HasSubMesh( topoEdge ))
+ continue; // empty sub-mesh
+
+ gEdge->deleteMesh();
+
+ // get node parameters on topoEdge
+ StdMeshers_FaceSide side( TopoDS_Face(), topoEdge, _mesh, /*fwd=*/true, /*skpMedium=*/true);
+ const UVPtStructVec& nodeParam = side.GetUVPtStruct();
+ if ( nodeParam.empty() )
+ throw std::string("Pb with StdMeshers_FaceSide::GetUVPtStruct()");
+
+ // get GMSH mesh vertices on VERTEX'es
+ std::vector<MVertex *> mVertices( nodeParam.size(), nullptr );
+ GVertex * gV0 = gEdge->getBeginVertex(), *gV1 = gEdge->getEndVertex();
+ mVertices[0] = gV0->mesh_vertices[ 0 ];
+ mVertices.back() = gV1->mesh_vertices[ 0 ];
+ TopoDS_Vertex v01 = *((TopoDS_Vertex*) gV0->getNativePtr());
+ TopoDS_Shape v02 = SMESH_MesherHelper::GetSubShapeByNode( nodeParam[0].node, meshDS );
+ bool reverse = !v01.IsSame( v02 );
+ if ( mVertices[0] == mVertices.back() )
+ reverse = ( nodeParam[0].param > nodeParam.back().param );
+ const SMDS_MeshNode* n0 = reverse ? nodeParam.back().node : nodeParam[0].node;
+ const SMDS_MeshNode* n1 = reverse ? nodeParam[0].node : nodeParam.back().node;
+ _nodeMap.insert({ mVertices[ 0 ], n0 });
+ _nodeMap.insert({ mVertices.back(), n1 });
+
+ // create GMSH mesh vertices on gEdge
+ for ( size_t i = 1; i < nodeParam.size() - 1; ++i )
+ {
+ size_t iN = reverse ? ( nodeParam.size() - 1 - i ) : i;
+ SMESH_NodeXYZ xyz = nodeParam[ iN ].node;
+ double lc = segmentSize( nodeParam, iN );
+ // SVector3 der = gEdge->firstDer(nodeParam[ iN ].param);
+ // double lc = norm(der) / segmentSize( nodeParam, i );
+
+ mVertices[ i ] = new MEdgeVertex( xyz.X(), xyz.Y(), xyz.Z(),
+ gEdge, nodeParam[ iN ].param, 0, lc);
+ gEdge->mesh_vertices.push_back( mVertices[ i ]);
+ _nodeMap.insert({ mVertices[ i ], nodeParam[ iN ].node });
+ }
+ // create GMSH mesh edges
+ for ( size_t i = 1; i < mVertices.size(); ++i )
+ {
+ gEdge->lines.push_back( new MLine( mVertices[ i - 1 ],
+ mVertices[ i ]));
+ }
+ /*{
+ cout << endl << "EDGE " << gEdge->tag() <<
+ ( topoEdge.Orientation() == TopAbs_FORWARD ? " F" : " R") << endl;
+ MVertex* mv = gV0->mesh_vertices[ 0 ];
+ cout << "V0: " << mv->x() << ", " << mv->y() << ", " << mv->z() << ", "<<endl;
+ for ( size_t i = 0; i < gEdge->mesh_vertices.size(); ++i )
+ {
+ MEdgeVertex* mv = (MEdgeVertex*) gEdge->mesh_vertices[i];
+ cout << i << ": " << mv->x() << ", " << mv->y() << ", " << mv->z() << ", ";
+ double t;
+ mv->getParameter(0, t );
+ cout << ":\t t = "<< t << " lc = " << mv->getLc() << endl;
+ }
+ mv = gV1->mesh_vertices[ 0 ];
+ cout << "V1: " << mv->x() << ", " << mv->y() << ", " << mv->z() << ", "<<endl;
+ }*/
+ }
+ return;
+}
+
+//================================================================================
+/*!
+ * \brief Set 2D sub-meshes to GModel. GMSH 2D mesh is made by now.
+ * \param [inout] _gModel - GMSH model
+ */
+//================================================================================
+
+void GMSHPlugin_Mesher::Set2DSubMeshes( GModel* gModel )
+{
+ if ( _nodeMap.empty() )
+ return; // no sub-meshes
+
+ SMESH_MesherHelper helper( *_mesh );
+
+ std::map< const SMDS_MeshNode* , const MVertex * > nodes2mvertMap;
+ for ( auto & v2n : _nodeMap )
+ nodes2mvertMap.insert({ v2n.second, v2n.first });
+
+ std::vector<MVertex *> mVertices;
+
+ for(GModel::fiter it = gModel->firstFace(); it != gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if ( !gFace->haveParametrization())
+#else
+ if ( gFace->geomType() == GEntity::CompoundSurface )
+#endif
+ continue;
+
+ TopoDS_Face topoFace = *((TopoDS_Face*)gFace->getNativePtr());
+ SMESHDS_SubMesh* sm = HasSubMesh( topoFace );
+ if ( !sm )
+ continue;
+ //_gModel->writeUNV("/tmp/befDEl.unv", 1,0,0);
+
+ gFace->deleteMesh();
+
+ bool reverse = false;
+ if ( gFace->getRegion(0) )
+ {
+ //GRegion * gRegion = gFace->getRegion(0);
+ TopoDS_Shape topoSolid = *((TopoDS_Shape*)gFace->getNativePtr());
+ TopAbs_Orientation faceOriInSolid = helper.GetSubShapeOri( topoSolid, topoFace );
+ if ( faceOriInSolid >= 0 )
+ reverse =
+ helper.IsReversedSubMesh( TopoDS::Face( topoFace.Oriented( faceOriInSolid )));
+ }
+
+ for ( SMDS_ElemIteratorPtr fIt = sm->GetElements(); fIt->more(); )
+ {
+ const SMDS_MeshElement* f = fIt->next();
+
+ int nbN = f->NbCornerNodes();
+ if ( nbN > 4 )
+ throw std::string("Polygon sub-meshes not supported");
+
+ mVertices.resize( nbN );
+ for ( int i = 0; i < nbN; ++i )
+ {
+ const SMDS_MeshNode* n = f->GetNode( i );
+ MVertex * mv = nullptr;
+ auto n2v = nodes2mvertMap.find( n );
+ if ( n2v != nodes2mvertMap.end() )
+ {
+ mv = const_cast< MVertex*>( n2v->second );
+ }
+ else
+ {
+ if ( n->GetPosition()->GetDim() < 2 )
+ throw std::string("Wrong mapping of edge nodes to GMSH nodes");
+ SMESH_NodeXYZ xyz = n;
+ bool ok = true;
+ gp_XY uv = helper.GetNodeUV( topoFace, n, nullptr, &ok );
+ mv = new MFaceVertex( xyz.X(), xyz.Y(), xyz.Z(), gFace, uv.X(), uv.Y() );
+ gFace->mesh_vertices.push_back( mv );
+ nodes2mvertMap.insert({ n, mv });
+ _nodeMap.insert ({ mv, n });
+ }
+ mVertices[ i ] = mv;
+ }
+ // create GMSH mesh faces
+ switch ( nbN ) {
+ case 3:
+ if ( reverse )
+ gFace->triangles.push_back (new MTriangle(mVertices[0], mVertices[2], mVertices[1]));
+ else
+ gFace->triangles.push_back (new MTriangle(mVertices[0], mVertices[1], mVertices[2]));
+ break;
+ case 4:
+ if ( reverse )
+ gFace->quadrangles.push_back (new MQuadrangle(mVertices[0], mVertices[3],
+ mVertices[2], mVertices[1]));
+ else
+ gFace->quadrangles.push_back (new MQuadrangle(mVertices[0], mVertices[1],
+ mVertices[2], mVertices[3]));
+ break;
+ default:;
+ }
+ }
+ } // loop on GMSH faces
+
+ return;
+}
+
+//================================================================================
+/*!
+ * \brief Set visibility 0 to already computed geom entities
+ * to prevent their meshing
+ */
+//================================================================================
+
+void GMSHPlugin_Mesher::HideComputedEntities( GModel* gModel, bool hideAnyway )
+{
+ CTX::instance()->mesh.meshOnlyVisible = true;
+
+ for(GModel::eiter it = gModel->firstEdge(); it != gModel->lastEdge(); ++it)
+ {
+ GEdge *gEdge = *it;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if ( !gEdge->haveParametrization())
+#else
+ if ( gEdge->geomType() == GEntity::CompoundCurve )
+#endif
+ continue;
+
+ TopoDS_Edge topoEdge = *((TopoDS_Edge*)gEdge->getNativePtr());
+ if ( HasSubMesh( topoEdge ) || hideAnyway )
+ gEdge->setVisibility(0);
+ }
+
+
+ for(GModel::fiter it = gModel->firstFace(); it != gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if ( !gFace->haveParametrization())
+#else
+ if ( gFace->geomType() == GEntity::CompoundSurface )
+#endif
+ continue;
+
+ TopoDS_Face topoFace = *((TopoDS_Face*)gFace->getNativePtr());
+ if ( HasSubMesh( topoFace ) || hideAnyway )
+ gFace->setVisibility(0);
+ }
+}
+
+//================================================================================
+/*!
+ * \brief Restore visibility of all geom entities
+ */
+//================================================================================
+
+void GMSHPlugin_Mesher::RestoreVisibility( GModel* gModel )
+{
+ for(GModel::eiter it = gModel->firstEdge(); it != gModel->lastEdge(); ++it)
+ {
+ GEdge *gEdge = *it;
+ gEdge->setVisibility(1);
+ }
+ for(GModel::fiter it = gModel->firstFace(); it != gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+ gFace->setVisibility(1);
+ }
+}
+
+/*
+ void GMSHPlugin_Mesher::toPython( GModel* )
+ {
+ const char* pyFile = "/tmp/gMesh.py";
+ ofstream outfile( pyFile, ios::out );
+ if ( !outfile ) return;
+
+ outfile << "import salome, SMESH" << std::endl
+ << "from salome.smesh import smeshBuilder" << std::endl
+ << "smesh = smeshBuilder.New()" << std::endl
+ << "mesh = smesh.Mesh()" << std::endl << std::endl;
+
+ outfile << "## VERTICES" << endl;
+ for ( GModel::viter it = _gModel->firstVertex(); it != _gModel->lastVertex(); ++it)
+ {
+ GVertex *gVertex = *it;
+
+ for(unsigned int i = 0; i < gVertex->mesh_vertices.size(); i++)
+ {
+ MVertex *v = gVertex->mesh_vertices[i];
+ if ( v->getIndex() >= 0)
+ {
+ outfile << "n" << v->getNum() << " = mesh.AddNode("
+ << v->x() << ", " << v->y() << ", " << v->z()<< ")"
+ << " ## tag = " << gVertex->tag() << endl;
+ }
+ }
+ }
+
+ for(GModel::eiter it = _gModel->firstEdge(); it != _gModel->lastEdge(); ++it)
+ {
+ GEdge *gEdge = *it;
+ outfile << "## GEdge " << gEdge->tag() << endl;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if(gEdge->haveParametrization())
+#else
+ if ( gEdge->geomType() != GEntity::CompoundCurve )
+#endif
+ for ( size_t i = 0; i < gEdge->mesh_vertices.size(); i++ )
+ {
+ MVertex *v = gEdge->mesh_vertices[i];
+ if ( v->getIndex() >= 0 )
+ {
+ outfile << "n" << v->getNum() << " = mesh.AddNode("
+ << v->x() << ", " << v->y() << ", " << v->z()<< ")"
+ << " ## tag = " << gEdge->tag() << endl;
+ }
+ }
+ }
+
+ for ( GModel::fiter it = _gModel->firstFace(); it != _gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+ if ( _compounds.size() && gFace->geomType() == GEntity::DiscreteSurface )
+ continue;
+ outfile << "## GFace " << gFace->tag() << endl;
+
+ for ( size_t i = 0; i < gFace->mesh_vertices.size(); i++ )
+ {
+ MVertex *v = gFace->mesh_vertices[i];
+ if ( v->getIndex() >= 0 )
+ {
+ outfile << "n" << v->getNum() << " = mesh.AddNode("
+ << v->x() << ", " << v->y() << ", " << v->z()<< ")"
+ << " ## tag = " << gFace->tag() << endl;
+ }
+ }
+ }
+
+ std::vector<MVertex*> verts(3);
+ for(GModel::eiter it = _gModel->firstEdge(); it != _gModel->lastEdge(); ++it)
+ {
+ GEdge *gEdge = *it;
+ outfile << "## GEdge " << gEdge->tag() << endl;
+
+#if GMSH_MAJOR_VERSION >=4 && GMSH_MINOR_VERSION >=8
+ if(gEdge->haveParametrization())
+#else
+ if ( gEdge->geomType() != GEntity::CompoundCurve )
+#endif
+ for ( size_t i = 0; i < gEdge->getNumMeshElements(); i++ )
+ {
+ MElement *e = gEdge->getMeshElement(i);
+ verts.clear();
+ e->getVertices(verts);
+
+ outfile << "e" << e->getNum() << " = mesh.AddEdge(["
+ << "n" << verts[0]->getNum() << ","
+ << "n" << verts[1]->getNum();
+ if ( verts.size() == 3 )
+ outfile << "n" << verts[2]->getNum();
+ outfile << "])"<< endl;
+ }
+ }
+
+ for ( GModel::fiter it = _gModel->firstFace(); it != _gModel->lastFace(); ++it)
+ {
+ GFace *gFace = *it;
+ if ( _compounds.size() && gFace->geomType() == GEntity::DiscreteSurface )
+ continue;
+ outfile << "## GFace " << gFace->tag() << endl;
+
+ for ( size_t i = 0; i < gFace->getNumMeshElements(); i++ )
+ {
+ MElement *e = gFace->getMeshElement(i);
+ verts.clear();
+ e->getVertices(verts);
+
+ outfile << "f" << e->getNum() << " = mesh.AddFace([";
+ for ( size_t j = 0; j < verts.size(); j++)
+ {
+ outfile << "n" << verts[j]->getNum();
+ if ( j < verts.size()-1 )
+ outfile << ", ";
+ }
+ outfile << "])" << endl;
+ }
+ }
+ std::cout << "Write " << pyFile << std::endl;
+}
+*/
