#include "NETGENPlugin_Runner.hxx"
-
+#include "NETGENPlugin_NETGEN_3D.hxx"
#include "NETGENPlugin_DriverParam.hxx"
#include <fstream>
return ret;
}
+ bool getSurfaceElements(
+ SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ SMESH_ProxyMesh::Ptr proxyMesh,
+ NETGENPlugin_Internals &internals,
+ SMESH_MesherHelper &helper,
+ netgen_params &aParams,
+ std::string element_orientation_file,
+ std::map<const SMDS_MeshElement*, tuple<bool, bool>>& listElements
+)
+{
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+
+ // Get list of elements + their orientation from element_orientation file
+ std::map<vtkIdType, bool> elemOrientation;
+ {
+ // Setting all element orientation to false if there no element orientation file
+ if(element_orientation_file.empty()){
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ // check mesh face
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ elemOrientation[elem->GetID()] = false;
+ }
+ } else {
+ std::ifstream df(element_orientation_file, ios::binary|ios::in);
+ int nbElement;
+ bool orient;
+
+ // Warning of the use of vtkIdType (I had issue when run_mesher was compiled with internal vtk) and salome not
+ // Sizeof was the same but how he othered the type was different
+ // Maybe using another type (uint64_t) instead would be better
+ vtkIdType id;
+ df.read((char*)&nbElement, sizeof(int));
+
+ for(int ielem=0;ielem<nbElement;++ielem){
+ df.read((char*) &id, sizeof(vtkIdType));
+ df.read((char*) &orient, sizeof(bool));
+ elemOrientation[id] = orient;
+ }
+ }
+ }
+
+ // Adding elements from Mesh
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
+ bool isRev;
+ bool isInternalFace = false;
+
+ bool isIn;
+
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ // check mesh face
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ if ( !elem ){
+ aParams._error = COMPERR_BAD_INPUT_MESH;
+ aParams._comment = "Null element encounters";
+ return true;
+ }
+ if ( elem->NbCornerNodes() != 3 ){
+ aParams._error = COMPERR_BAD_INPUT_MESH;
+ aParams._comment = "Not triangle element encounters";
+ return true;
+ }
+ // Keeping only element that are in the element orientation file
+ isIn = elemOrientation.count(elem->GetID())==1;
+ if(!isIn)
+ continue;
+ // Get orientation
+ // Netgen requires that all the triangle point outside
+ isRev = elemOrientation[elem->GetID()];
+ listElements[elem] = tuple(isRev, false);
+ }
+
+ return false;
+}
+
bool mycomputeFillNgMesh(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
std::string element_orientation_file,
int &Netgen_NbOfNodes)
{
- netgen::multithread.terminate = 0;
+ netgen::multithread.terminate = 0;
netgen::multithread.task = "Volume meshing";
+ aParams._progressByTic = -1.;
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
aParams._quadraticMesh = helper.IsQuadraticSubMesh(aShape);
helper.SetElementsOnShape( true );
+ Netgen_NbOfNodes = 0;
double Netgen_point[3];
int Netgen_triangle[3];
// ---------------------------------
// Feed the Netgen with surface mesh
// ---------------------------------
-
- TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
- bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
+ bool isRev=false;
+ bool isInternalFace=false;
SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
if ( aParams._viscousLayersHyp )
proxyMesh.reset( Adaptor );
}
- // Get list of elements + their orientation from element_orientation file
- std::map<vtkIdType, bool> elemOrientation;
- {
- // Setting all element orientation to false if there no element orientation file
- if(element_orientation_file.empty()){
- SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
- while ( iteratorElem->more() ) // loop on elements on a geom face
- {
- // check mesh face
- const SMDS_MeshElement* elem = iteratorElem->next();
- elemOrientation[elem->GetID()] = false;
- }
- } else {
- std::ifstream df(element_orientation_file, ios::binary|ios::in);
- int nbElement;
- bool orient;
-
- // Warning of the use of vtkIdType (I had issue when run_mesher was compiled with internal vtk) and salome not
- // Sizeof was the same but how he othered the type was different
- // Maybe using another type (uint64_t) instead would be better
- vtkIdType id;
- df.read((char*)&nbElement, sizeof(int));
-
- for(int ielem=0;ielem<nbElement;++ielem){
- df.read((char*) &id, sizeof(vtkIdType));
- df.read((char*) &orient, sizeof(bool));
- elemOrientation[id] = orient;
- }
- }
- }
-
- // Adding elements from Mesh
- SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
- bool isRev;
- bool isInternalFace = false;
+ std::map<const SMDS_MeshElement*, tuple<bool, bool>> listElements;
+ bool ret = getSurfaceElements(aMesh, aShape, proxyMesh, internals, helper, aParams, element_orientation_file, listElements);
+ if(ret)
+ return ret;
- bool isIn;
+ for ( auto const& [elem, info] : listElements ) // loop on elements on a geom face
+ {
+ isRev = get<0>(info);
+ isInternalFace = get<1>(info);
+ // Add nodes of triangles and triangles them-selves to netgen mesh
- while ( iteratorElem->more() ) // loop on elements on a geom face
+ // add three nodes of triangle
+ bool hasDegen = false;
+ for ( int iN = 0; iN < 3; ++iN )
{
- // check mesh face
- const SMDS_MeshElement* elem = iteratorElem->next();
- if ( !elem )
- return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
- if ( elem->NbCornerNodes() != 3 )
- return error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
-
- // Keeping only element that are in the element orientation file
- isIn = elemOrientation.count(elem->GetID())==1;
-
- if(!isIn)
- continue;
-
- // Get orientation
- // Netgen requires that all the triangle point outside
- isRev = elemOrientation[elem->GetID()];
-
- // Add nodes of triangles and triangles them-selves to netgen mesh
-
- // add three nodes of triangle
- bool hasDegen = false;
- for ( int iN = 0; iN < 3; ++iN )
+ const SMDS_MeshNode* node = elem->GetNode( iN );
+ const int shapeID = node->getshapeId();
+ if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
+ helper.IsDegenShape( shapeID ))
{
- const SMDS_MeshNode* node = elem->GetNode( iN );
- const int shapeID = node->getshapeId();
- if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
- helper.IsDegenShape( shapeID ))
- {
- // ignore all nodes on degeneraged edge and use node on its vertex instead
- TopoDS_Shape vertex = TopoDS_Iterator( meshDS->IndexToShape( shapeID )).Value();
- node = SMESH_Algo::VertexNode( TopoDS::Vertex( vertex ), meshDS );
- hasDegen = true;
- }
- int& ngID = nodeToNetgenID.insert(TN2ID( node, invalid_ID )).first->second;
- if ( ngID == invalid_ID )
- {
- ngID = ++Netgen_NbOfNodes;
- Netgen_point [ 0 ] = node->X();
- Netgen_point [ 1 ] = node->Y();
- Netgen_point [ 2 ] = node->Z();
- Ng_AddPoint(Netgen_mesh, Netgen_point);
- }
-
- Netgen_triangle[ isRev ? 2-iN : iN ] = ngID;
+ // ignore all nodes on degeneraged edge and use node on its vertex instead
+ TopoDS_Shape vertex = TopoDS_Iterator( meshDS->IndexToShape( shapeID )).Value();
+ node = SMESH_Algo::VertexNode( TopoDS::Vertex( vertex ), meshDS );
+ hasDegen = true;
}
- // add triangle
- if ( hasDegen && (Netgen_triangle[0] == Netgen_triangle[1] ||
- Netgen_triangle[0] == Netgen_triangle[2] ||
- Netgen_triangle[2] == Netgen_triangle[1] ))
- continue;
-
- Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
-
- // TODO: Handle that case (quadrangle 2D) (isInternal is set to false)
- if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
+ int& ngID = nodeToNetgenID.insert(TN2ID( node, invalid_ID )).first->second;
+ if ( ngID == invalid_ID )
{
- swap( Netgen_triangle[1], Netgen_triangle[2] );
- Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
+ ngID = ++Netgen_NbOfNodes;
+ Netgen_point [ 0 ] = node->X();
+ Netgen_point [ 1 ] = node->Y();
+ Netgen_point [ 2 ] = node->Z();
+ Ng_AddPoint(Netgen_mesh, Netgen_point);
}
+ Netgen_triangle[ isRev ? 2-iN : iN ] = ngID;
+ }
+ // add triangle
+ if ( hasDegen && (Netgen_triangle[0] == Netgen_triangle[1] ||
+ Netgen_triangle[0] == Netgen_triangle[2] ||
+ Netgen_triangle[2] == Netgen_triangle[1] ))
+ continue;
+
+ Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
+
+ if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
+ {
+ swap( Netgen_triangle[1], Netgen_triangle[2] );
+ Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
}
+ } // loop on elements on a face
// insert old nodes into nodeVec
nodeVec.resize( nodeToNetgenID.size() + 1, 0 );
nodeVec[ n_id->second ] = n_id->first;
nodeToNetgenID.clear();
- // TODO: Handle internal vertex
- //if ( internals.hasInternalVertexInSolid() )
- //{
- // netgen::OCCGeometry occgeo;
- // NETGENPlugin_Mesher::AddIntVerticesInSolids( occgeo,
- // (netgen::Mesh&) *Netgen_mesh,
- // nodeVec,
- // internals);
- //}
- }
- Netgen_mesh = ngLib.ngMesh();
- Netgen_NbOfNodes = Ng_GetNP( Netgen_mesh );
-
- return false;
-}
-
-bool mycomputePrepareParam(
- SMESH_Mesh& aMesh,
- NETGENPlugin_NetgenLibWrapper &ngLib,
- netgen::OCCGeometry &occgeo,
- SMESH_MesherHelper &helper,
- netgen_params &aParams,
- int &endWith)
-{
-
- // -------------------------
- // Generate the volume mesh
- // -------------------------
- netgen::multithread.terminate = 0;
-
- netgen::Mesh* ngMesh = ngLib._ngMesh;
-
- NETGENPlugin_Mesher aMesher( &aMesh, helper.GetSubShape(), /*isVolume=*/true );
- set_netgen_parameters(aParams);
-
- if ( aParams.has_netgen_param )
- {
- if ( aParams.has_local_size)
+ if ( internals.hasInternalVertexInSolid() )
{
- if ( ! &ngMesh->LocalHFunction() )
- {
- netgen::Point3d pmin, pmax;
- ngMesh->GetBox( pmin, pmax, 0 );
- ngMesh->SetLocalH( pmin, pmax, aParams.grading );
- }
- aMesher.SetLocalSize( occgeo, *ngMesh );
-
- try {
- ngMesh->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
- } catch (netgen::NgException & ex) {
- return error( COMPERR_BAD_PARMETERS, ex.What() );
- }
+ netgen::OCCGeometry occgeo;
+ NETGENPlugin_Mesher::AddIntVerticesInSolids( occgeo,
+ (netgen::Mesh&) *Netgen_mesh,
+ nodeVec,
+ internals);
}
- if ( !aParams.optimize )
- endWith = netgen::MESHCONST_MESHVOLUME;
}
- else if ( aParams.has_maxelementvolume_hyp )
- {
- netgen::mparam.maxh = pow( 72, 1/6. ) * pow( aParams.maxElementVolume, 1/3. );
- // limitVolumeSize( ngMesh, netgen::mparam.maxh ); // result is unpredictable
- }
- else if ( aMesh.HasShapeToMesh() )
- {
- aMesher.PrepareOCCgeometry( occgeo, helper.GetSubShape(), aMesh );
- netgen::mparam.maxh = occgeo.GetBoundingBox().Diam()/2;
- }
- else
- {
- netgen::Point3d pmin, pmax;
- ngMesh->GetBox (pmin, pmax);
- netgen::mparam.maxh = Dist(pmin, pmax)/2;
- }
-
- if ( !aParams.has_netgen_param && aMesh.HasShapeToMesh() )
- {
- netgen::mparam.minh = aMesher.GetDefaultMinSize( helper.GetSubShape(), netgen::mparam.maxh );
- }
-
- return false;
-}
-
-bool mycomputeRunMesher(
- netgen::OCCGeometry &occgeo,
- std::vector< const SMDS_MeshNode* > &nodeVec,
- netgen::Mesh* ngMesh,
- NETGENPlugin_NetgenLibWrapper &ngLib,
- int &startWith, int &endWith)
-{
- int err = 1;
- try
- {
- OCC_CATCH_SIGNALS;
-
- ngLib.CalcLocalH(ngMesh);
- err = ngLib.GenerateMesh(occgeo, startWith, endWith, ngMesh);
-
- if(netgen::multithread.terminate)
- return false;
- if ( err )
- return error(SMESH_Comment("Error in netgen::OCCGenerateMesh() at ") << netgen::multithread.task);
- }
- catch (Standard_Failure& ex)
- {
- SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
- str << " at " << netgen::multithread.task
- << ": " << ex.DynamicType()->Name();
- if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
- str << ": " << ex.GetMessageString();
- return error(str);
- }
- catch (netgen::NgException& exc)
- {
- SMESH_Comment str("NgException");
- if ( strlen( netgen::multithread.task ) > 0 )
- str << " at " << netgen::multithread.task;
- str << ": " << exc.What();
- return error(str);
- }
- catch (...)
- {
- SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
- if ( strlen( netgen::multithread.task ) > 0 )
- str << " at " << netgen::multithread.task;
- return error(str);
- }
-
- if ( err )
- {
- SMESH_ComputeErrorPtr ce = NETGENPlugin_Mesher::ReadErrors(nodeVec);
- if ( ce && ce->HasBadElems() )
- return error( ce );
- }
-
+ Netgen_NbOfNodes = Ng_GetNP( Netgen_mesh );
return false;
-
}
bool mycomputeFillNewElementFile(
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
- bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
+ bool isOK = ( Netgen_NbOfTetra > 0 );
if ( isOK && !new_element_file.empty() )
{
std::ofstream df(new_element_file, ios::out|ios::binary);
return false;
}
-bool mycomputeFillMesh(
- std::vector< const SMDS_MeshNode* > &nodeVec,
- NETGENPlugin_NetgenLibWrapper &ngLib,
- SMESH_MesherHelper &helper,
- int &Netgen_NbOfNodes)
-{
-
- Ng_Mesh* Netgen_mesh = ngLib.ngMesh();
-
- int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
- int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
-
- // -------------------------------------------------------------------
- // Feed back the SMESHDS with the generated Nodes and Volume Elements
- // -------------------------------------------------------------------
-
- // Adding new elements in aMesh as well
-
- double Netgen_point[3];
- int Netgen_tetrahedron[4];
-
- // create and insert new nodes into nodeVec
- nodeVec.resize( Netgen_NbOfNodesNew + 1, 0 );
- int nodeIndex = Netgen_NbOfNodes + 1;
- for ( ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
- {
- Ng_GetPoint( Netgen_mesh, nodeIndex, Netgen_point );
- nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
- Netgen_point[1],
- Netgen_point[2]);
- }
-
- // create tetrahedrons
- for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
- {
- Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
- try
- {
- helper.AddVolume (nodeVec.at( Netgen_tetrahedron[0] ),
- nodeVec.at( Netgen_tetrahedron[1] ),
- nodeVec.at( Netgen_tetrahedron[2] ),
- nodeVec.at( Netgen_tetrahedron[3] ));
- }
- catch (...)
- {
- }
-
- }
-
- return false;
-}
-
/**
* @brief Compute aShape within aMesh using netgen3d
*
std::string new_element_file, std::string element_orientation_file,
bool output_mesh)
{
-// vector of nodes in which node index == netgen ID
+ // vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec;
NETGENPlugin_NetgenLibWrapper ngLib;
SMESH_MesherHelper helper(aMesh);
int Netgen_NbOfNodes=0;
bool ret;
- std::cout << "mycomputeFillNgMesh" << std::endl;
ret = mycomputeFillNgMesh(aMesh, aShape, nodeVec, ngLib, helper, aParams, element_orientation_file, Netgen_NbOfNodes);
if(ret)
return error( aParams._error, aParams._comment);
- std::cout << "mycomputePrepareParam" << std::endl;
netgen::OCCGeometry occgeo;
- mycomputePrepareParam(aMesh, ngLib, occgeo, helper, aParams, endWith);
- std::cout << "mycomputeRunMesher" << std::endl;
+ NETGENPlugin_NETGEN_3D::computePrepareParam(aMesh, ngLib, occgeo, helper, aParams, endWith);
- ret = mycomputeRunMesher(occgeo, nodeVec, ngLib._ngMesh, ngLib, startWith, endWith);
+ ret = NETGENPlugin_NETGEN_3D::computeRunMesher(occgeo, nodeVec, ngLib._ngMesh, ngLib, aParams, startWith, endWith);
if(ret){
if(aParams._error)
return error(aParams._error, aParams._comment);
error(aParams._comment);
return true;
}
- std::cout << "mycomputeFillNewElementFile" << std::endl;
mycomputeFillNewElementFile(nodeVec, ngLib, new_element_file, Netgen_NbOfNodes);
- std::cout << "mycomputeFillMesh" << std::endl;
if(output_mesh)
- mycomputeFillMesh(nodeVec, ngLib, helper, Netgen_NbOfNodes);
- std::cout << "Done" << std::endl;
-
+ NETGENPlugin_NETGEN_3D::computeFillMesh(nodeVec, ngLib, helper, Netgen_NbOfNodes);
return false;
}
