#include "NETGENPlugin_Mesher.hxx"
#include "NETGENPlugin_Hypothesis_2D.hxx"
#include "NETGENPlugin_Provider.hxx"
+#include "netgen_param.hxx"
#include <SMDS_MeshElement.hxx>
#include <SMDS_MeshNode.hxx>
#include <StdMeshers_MaxElementArea.hxx>
#include <StdMeshers_QuadranglePreference.hxx>
#include <StdMeshers_ViscousLayers2D.hxx>
+#include "DriverStep.hxx"
+#include "DriverMesh.hxx"
+
#include <Precision.hxx>
#include <Standard_ErrorHandler.hxx>
#include <vector>
#include <limits>
+#include <cstdlib>
+#include <boost/filesystem.hpp>
+namespace fs = boost::filesystem;
/*
Netgen include files
*/
//#include <meshtype.hpp>
namespace netgen {
NETGENPLUGIN_DLL_HEADER
- // extern MeshingParameters mparam;
+ extern MeshingParameters mparam;
#ifdef NETGEN_V5
extern void OCCSetLocalMeshSize(OCCGeometry & geom, Mesh & mesh);
#endif
// }
// }
+
+// write in a binary file the orientation for each 2D element of the mesh
+void NETGENPlugin_NETGEN_2D_ONLY::exportElementOrientation(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ netgen_params& aParams,
+ const std::string output_file)
+{
+ std::map<vtkIdType, bool> elemOrientation;
+
+ SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
+ for ( TopExp_Explorer exEd( aShape, TopAbs_EDGE ); exEd.More(); exEd.Next())
+ {
+ const TopoDS_Shape& aShapeEdge = exEd.Current();
+ const SMESHDS_SubMesh * aSubMeshDSEdge = proxyMesh->GetSubMesh( aShapeEdge );
+ if ( !aSubMeshDSEdge ) continue;
+
+ SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSEdge->GetElements();
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ elemOrientation[elem->GetID()] = aShapeEdge.Orientation() == TopAbs_INTERNAL;
+ }
+ }
+
+ std::ofstream df(output_file, ios::out|ios::binary);
+ int size=elemOrientation.size();
+
+ df.write((char*)&size, sizeof(int));
+ for(auto const& [id, orient]:elemOrientation){
+ df.write((char*)&id, sizeof(vtkIdType));
+ df.write((char*)&orient, sizeof(bool));
+ }
+ df.close();
+}
+
+void NETGENPlugin_NETGEN_2D_ONLY::FillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
+{
+ //TODO: factorize code with the one from NETGEN3D
+ // Move in netgen_param ?
+ aParams.maxh = hyp->GetMaxSize();
+ aParams.minh = hyp->GetMinSize();
+ aParams.segmentsperedge = hyp->GetNbSegPerEdge();
+ aParams.grading = hyp->GetGrowthRate();
+ aParams.curvaturesafety = hyp->GetNbSegPerRadius();
+ aParams.secondorder = hyp->GetSecondOrder() ? 1 : 0;
+ aParams.quad = hyp->GetQuadAllowed() ? 1 : 0;
+ aParams.optimize = hyp->GetOptimize();
+ aParams.fineness = hyp->GetFineness();
+ aParams.uselocalh = hyp->GetSurfaceCurvature();
+ aParams.merge_solids = hyp->GetFuseEdges();
+ aParams.chordalError = hyp->GetChordalErrorEnabled() ? hyp->GetChordalError() : -1.;
+ aParams.optsteps2d = aParams.optimize ? hyp->GetNbSurfOptSteps() : 0;
+ aParams.optsteps3d = aParams.optimize ? hyp->GetNbVolOptSteps() : 0;
+ aParams.elsizeweight = hyp->GetElemSizeWeight();
+ aParams.opterrpow = hyp->GetWorstElemMeasure();
+ aParams.delaunay = hyp->GetUseDelauney();
+ aParams.checkoverlap = hyp->GetCheckOverlapping();
+ aParams.checkchartboundary = hyp->GetCheckChartBoundary();
+#ifdef NETGEN_V6
+ // std::string
+ aParams.meshsizefilename = hyp->GetMeshSizeFile();
+#else
+ // const char*
+ aParams.meshsizefilename = hyp->GetMeshSizeFile().empty() ? 0 : hyp->GetMeshSizeFile().c_str();
+#endif
+#ifdef NETGEN_V6
+ aParams.closeedgefac = 2;
+#else
+ aParams.closeedgefac = 0;
+#endif
+ aParams.has_LengthFromEdges_hyp = _hypLengthFromEdges;
+}
+//=============================================================================
+/*!
+ *Here we are going to use the NETGEN mesher remotely
+ */
+//=============================================================================
+
+bool NETGENPlugin_NETGEN_2D_ONLY::RemoteCompute(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape)
+{
+ aMesh.Lock();
+ SMESH_Hypothesis::Hypothesis_Status hypStatus;
+ CheckHypothesis(aMesh, aShape, hypStatus);
+
+ // Temporary folder for run
+ fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Face-%%%%-%%%%"));
+ fs::create_directories(tmp_folder);
+ // Using MESH2D generated after all triangles where created.
+ fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh1D.med");
+ fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
+ fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
+ fs::path tmp_mesh_file=tmp_folder / fs::path("tmp_mesh.med");
+ // TODO: Remove that file we do not use it
+ fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
+ fs::path shape_file=tmp_folder / fs::path("shape.step");
+ fs::path param_file=tmp_folder / fs::path("netgen2d_param.txt");
+ fs::path log_file=tmp_folder / fs::path("run_mesher.log");
+ //TODO: Handle variable mesh_name
+ std::string mesh_name = "Maillage_1";
+
+ //Writing Shape
+ export_shape(shape_file.string(), aShape);
+ //Writing hypo
+ netgen_params aParams;
+ FillParameters(_hypParameters, aParams);
+
+ export_netgen_params(param_file.string(), aParams);
+
+ // Exporting element orientation
+ exportElementOrientation(aMesh, aShape, aParams, element_orientation_file.string());
+
+ aMesh.Unlock();
+ // Calling run_mesher
+ // TODO: check if we need to handle the .exe for windows
+ std::string cmd;
+ fs::path run_mesher_exe =
+ fs::path(std::getenv("NETGENPLUGIN_ROOT_DIR"))/
+ fs::path("bin")/
+ fs::path("salome")/
+ fs::path("run_mesher");
+ cmd = run_mesher_exe.string() +
+ " NETGEN2D " + mesh_file.string() + " "
+ + shape_file.string() + " "
+ + param_file.string() + " "
+ + element_orientation_file.string() + " "
+ + new_element_file.string() + " "
+ + std::to_string(0) + " "
+ + output_mesh_file.string() +
+ " >> " + log_file.string();
+
+ std::cout << "Running command: " << std::endl;
+ std::cout << cmd << std::endl;
+
+ // Writing command in log
+ std::ofstream flog(log_file.string());
+ flog << cmd << endl;
+ flog.close();
+
+ // TODO: Replace system by something else to handle redirection for windows
+ int ret = system(cmd.c_str());
+
+ // TODO: better error handling (display log ?)
+ if(ret != 0){
+ // Run crahed
+ //throw Exception("Meshing failed");
+ std::cerr << "Issue with command: " << std::endl;
+ std::cerr << cmd << std::endl;
+ return false;
+ }
+
+ aMesh.Lock();
+ std::ifstream df(new_element_file.string(), ios::binary);
+
+ int Netgen_NbOfNodes;
+ int Netgen_NbOfNodesNew;
+ int Netgen_NbOfTria;
+ double Netgen_point[3];
+ int Netgen_triangle[3];
+ int nodeID;
+
+ SMESH_MesherHelper helper(aMesh);
+ // This function is necessary so that SetElementOnShape works
+ int _quadraticMesh = helper.IsQuadraticSubMesh(aShape);
+ helper.SetElementsOnShape( true );
+
+ // Number of nodes in intial mesh
+ df.read((char*) &Netgen_NbOfNodes, sizeof(int));
+ // Number of nodes added by netgen
+ df.read((char*) &Netgen_NbOfNodesNew, sizeof(int));
+
+ // Filling nodevec (correspondence netgen numbering mesh numbering)
+ vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
+ for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
+ {
+ //Id of the point
+ df.read((char*) &nodeID, sizeof(int));
+ nodeVec.at(nodeIndex) = nullptr;
+ SMDS_NodeIteratorPtr iteratorNode = aMesh.GetMeshDS()->nodesIterator();
+ while(iteratorNode->more()){
+ const SMDS_MeshNode* node = iteratorNode->next();
+ if(node->GetID() == nodeID){
+ nodeVec.at(nodeIndex) = node;
+ break;
+ }
+ }
+ if(nodeVec.at(nodeIndex) == nullptr){
+ std::cout << "Error could not identify id";
+ return false;
+ }
+ }
+
+ // Add new points and update nodeVec
+ for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
+ {
+ df.read((char *) &Netgen_point, sizeof(double)*3);
+
+ nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
+ Netgen_point[1],
+ Netgen_point[2]);
+ }
+
+ // Add tetrahedrons
+ df.read((char*) &Netgen_NbOfTria, sizeof(int));
+ for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTria; ++elemIndex )
+ {
+ df.read((char*) &Netgen_triangle, sizeof(int)*3);
+ helper.AddFace (nodeVec.at( Netgen_triangle[0] ),
+ nodeVec.at( Netgen_triangle[1] ),
+ nodeVec.at( Netgen_triangle[2] ));
+ }
+ df.close();
+
+ aMesh.Unlock();
+
+ return true;
+}
//=============================================================================
/*!
*Here we are going to use the NETGEN mesher
bool NETGENPlugin_NETGEN_2D_ONLY::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
- aMesh.Lock();
- SMESH_Hypothesis::Hypothesis_Status hypStatus;
- this->CheckHypothesis(aMesh, aShape, hypStatus);
- aMesh.Unlock();
- netgen::MeshingParameters mparam;
- int id_mparam = mparam_provider.take(mparam);
+ if(aMesh.IsParallel())
+ return RemoteCompute(aMesh, aShape);
netgen::multithread.terminate = 0;
- //netgen::multithread.task = "Surface meshing";
+ netgen::multithread.task = "Surface meshing";
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
helper.SetElementsOnShape( true );
- NETGENPlugin_NetgenLibWrapper *ngLib;
- int id_ngLib = nglib_provider.take(&ngLib);
- ngLib->_isComputeOk = false;
+ NETGENPlugin_NetgenLibWrapper ngLib;
+ ngLib._isComputeOk = false;
netgen::Mesh ngMeshNoLocSize;
- netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib->_ngMesh, & ngMeshNoLocSize };
- netgen::OCCGeometry *occgeoComm;
- int id_occgeoComm = occgeom_provider.take(&occgeoComm);
+ netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh, & ngMeshNoLocSize };
+ netgen::OCCGeometry occgeoComm;
// min / max sizes are set as follows:
// if ( _hypParameters )
// else
// min = aMesher.GetDefaultMinSize()
// max = max segment len of a FACE
- aMesh.Lock();
NETGENPlugin_Mesher aMesher( &aMesh, aShape, /*isVolume=*/false);
- // TODO: Only valid for NETGEN2D_Only
- aMesher.SetDefaultParameters(mparam);
- aMesher.SetParameters( _hypParameters, mparam ); // _hypParameters -> mparam
+ aMesher.SetParameters( _hypParameters ); // _hypParameters -> netgen::mparam
const bool toOptimize = _hypParameters ? _hypParameters->GetOptimize() : true;
if ( _hypMaxElementArea )
{
- mparam.maxh = sqrt( 2. * _hypMaxElementArea->GetMaxArea() / sqrt(3.0) );
+ netgen::mparam.maxh = sqrt( 2. * _hypMaxElementArea->GetMaxArea() / sqrt(3.0) );
}
if ( _hypQuadranglePreference )
- mparam.quad = true;
+ netgen::mparam.quad = true;
// local size is common for all FACEs in aShape?
- const bool isCommonLocalSize = ( !_hypLengthFromEdges && !_hypMaxElementArea && mparam.uselocalh );
+ const bool isCommonLocalSize = ( !_hypLengthFromEdges && !_hypMaxElementArea && netgen::mparam.uselocalh );
const bool isDefaultHyp = ( !_hypLengthFromEdges && !_hypMaxElementArea && !_hypParameters );
aMesh.Unlock();
if ( isCommonLocalSize ) // compute common local size in ngMeshes[0]
{
//list< SMESH_subMesh* > meshedSM[4]; --> all sub-shapes are added to occgeoComm
- aMesher.PrepareOCCgeometry( *occgeoComm, aShape, aMesh );//, meshedSM );
+ aMesher.PrepareOCCgeometry( occgeoComm, aShape, aMesh );//, meshedSM );
// local size set at MESHCONST_ANALYSE step depends on
// minh, face_maxh, grading and curvaturesafety; find minh if not set by the user
- if ( !_hypParameters || mparam.minh < DBL_MIN )
+ if ( !_hypParameters || netgen::mparam.minh < DBL_MIN )
{
if ( !_hypParameters )
- mparam.maxh = occgeoComm->GetBoundingBox().Diam() / 3.;
- mparam.minh = aMesher.GetDefaultMinSize( aShape, mparam.maxh );
+ netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam() / 3.;
+ netgen::mparam.minh = aMesher.GetDefaultMinSize( aShape, netgen::mparam.maxh );
}
// set local size depending on curvature and NOT closeness of EDGEs
#ifdef NETGEN_V6
#else
const double factor = netgen::occparam.resthcloseedgefac;
netgen::occparam.resthcloseedgeenable = false;
- netgen::occparam.resthcloseedgefac = 1.0 + mparam.grading;
+ netgen::occparam.resthcloseedgefac = 1.0 + netgen::mparam.grading;
#endif
- occgeoComm->face_maxh = mparam.maxh;
+ occgeoComm.face_maxh = netgen::mparam.maxh;
#ifdef NETGEN_V6
netgen::OCCParameters occparam;
- netgen::OCCSetLocalMeshSize( *occgeoComm, *ngMeshes[0], mparam, occparam );
+ netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0], netgen::mparam, occparam );
#else
aMesh.Lock();
- netgen::OCCSetLocalMeshSize( *occgeoComm, *ngMeshes[0] );
+ netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0] );
aMesh.Unlock();
#endif
- occgeoComm->emap.Clear();
- occgeoComm->vmap.Clear();
+ occgeoComm.emap.Clear();
+ occgeoComm.vmap.Clear();
// set local size according to size of existing segments
TopTools_IndexedMapOfShape edgeMap;
}
// set local size defined on shapes
- aMesher.SetLocalSize( *occgeoComm, *ngMeshes[0] );
- aMesher.SetLocalSizeForChordalError( *occgeoComm, *ngMeshes[0] );
+ aMesher.SetLocalSize( occgeoComm, *ngMeshes[0] );
+ aMesher.SetLocalSizeForChordalError( occgeoComm, *ngMeshes[0] );
try {
- ngMeshes[0]->LoadLocalMeshSize( mparam.meshsizefilename );
+ ngMeshes[0]->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
} catch (NgException & ex) {
return error( COMPERR_BAD_PARMETERS, ex.What() );
}
}
- mparam.uselocalh = toOptimize; // restore as it is used at surface optimization
+ netgen::mparam.uselocalh = toOptimize; // restore as it is used at surface optimization
// ==================
// Loop on all FACEs
// ==================
}
if ( nbSegments )
edgeLength /= double( nbSegments );
- mparam.maxh = edgeLength;
+ netgen::mparam.maxh = edgeLength;
}
else if ( isDefaultHyp )
{
}
}
edgeLength = sqrt( maxSeg2 ) * 1.05;
- mparam.maxh = edgeLength;
+ netgen::mparam.maxh = edgeLength;
}
- if ( mparam.maxh < DBL_MIN )
- mparam.maxh = occgeoComm->GetBoundingBox().Diam();
+ if ( netgen::mparam.maxh < DBL_MIN )
+ netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam();
if ( !isCommonLocalSize )
{
- mparam.minh = aMesher.GetDefaultMinSize( F, mparam.maxh );
+ netgen::mparam.minh = aMesher.GetDefaultMinSize( F, netgen::mparam.maxh );
}
}
// prepare occgeom
- netgen::OCCGeometry *occgeom;
- int id_occgeom = occgeom_provider.take(&occgeom);
- occgeom->shape = F;
- occgeom->fmap.Add( F );
- occgeom->CalcBoundingBox();
- occgeom->facemeshstatus.SetSize(1);
- occgeom->facemeshstatus = 0;
- occgeom->face_maxh_modified.SetSize(1);
- occgeom->face_maxh_modified = 0;
- occgeom->face_maxh.SetSize(1);
- occgeom->face_maxh = mparam.maxh;
+ netgen::OCCGeometry occgeom;
+ occgeom.shape = F;
+ occgeom.fmap.Add( F );
+ occgeom.CalcBoundingBox();
+ occgeom.facemeshstatus.SetSize(1);
+ occgeom.facemeshstatus = 0;
+ occgeom.face_maxh_modified.SetSize(1);
+ occgeom.face_maxh_modified = 0;
+ occgeom.face_maxh.SetSize(1);
+ occgeom.face_maxh = netgen::mparam.maxh;
// -------------------------
// Fill netgen mesh
if ( iLoop == NO_LOC_SIZE )
{
- ngMesh->SetGlobalH ( mparam.maxh );
- ngMesh->SetMinimalH( mparam.minh );
- Box<3> bb = occgeom->GetBoundingBox();
+ ngMesh->SetGlobalH ( netgen::mparam.maxh );
+ ngMesh->SetMinimalH( netgen::mparam.minh );
+ Box<3> bb = occgeom.GetBoundingBox();
bb.Increase (bb.Diam()/10);
- ngMesh->SetLocalH (bb.PMin(), bb.PMax(), mparam.grading);
- aMesher.SetLocalSize( *occgeom, *ngMesh );
- aMesher.SetLocalSizeForChordalError( *occgeoComm, *ngMesh );
+ ngMesh->SetLocalH (bb.PMin(), bb.PMax(), netgen::mparam.grading);
+ aMesher.SetLocalSize( occgeom, *ngMesh );
+ aMesher.SetLocalSizeForChordalError( occgeoComm, *ngMesh );
try {
- ngMesh->LoadLocalMeshSize( mparam.meshsizefilename );
+ ngMesh->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
} catch (NgException & ex) {
return error( COMPERR_BAD_PARMETERS, ex.What() );
}
}
nodeVec.clear();
- faceErr = aMesher.AddSegmentsToMesh( *ngMesh, *occgeom, wires, helper, nodeVec,
+ faceErr = aMesher.AddSegmentsToMesh( *ngMesh, occgeom, wires, helper, nodeVec,
/*overrideMinH=*/!_hypParameters);
if ( faceErr && !faceErr->IsOK() )
break;
//if ( !isCommonLocalSize )
- //limitSize( ngMesh, mparam.maxh * 0.8);
+ //limitSize( ngMesh, netgen::mparam.maxh * 0.8);
// -------------------------
// Generate surface mesh
SMESH_Comment str;
try {
OCC_CATCH_SIGNALS;
- err = ngLib->GenerateMesh(*occgeom, startWith, endWith, ngMesh, mparam);
+ err = ngLib.GenerateMesh(occgeom, startWith, endWith, ngMesh);
if ( netgen::multithread.terminate )
return false;
if ( err )
}
if ( err )
{
- if ( aMesher.FixFaceMesh( *occgeom, *ngMesh, 1 ))
+ if ( aMesher.FixFaceMesh( occgeom, *ngMesh, 1 ))
break;
if ( iLoop == LOC_SIZE )
{
- mparam.minh = mparam.maxh;
- mparam.maxh = 0;
+ netgen::mparam.minh = netgen::mparam.maxh;
+ netgen::mparam.maxh = 0;
for ( size_t iW = 0; iW < wires.size(); ++iW )
{
StdMeshers_FaceSidePtr wire = wires[ iW ];
netgen::Point3d np( p.X(),p.Y(),p.Z());
double segLen = p.Distance( uvPtVec[ iP-1 ].node );
double size = ngMesh->GetH( np );
- mparam.minh = Min( mparam.minh, size );
- mparam.maxh = Max( mparam.maxh, segLen );
+ netgen::mparam.minh = Min( netgen::mparam.minh, size );
+ netgen:: mparam.maxh = Max( netgen::mparam.maxh, segLen );
}
}
//cerr << "min " << mparam.minh << " max " << mparam.maxh << endl;
- mparam.minh *= 0.9;
- mparam.maxh *= 1.1;
+ netgen::mparam.minh *= 0.9;
+ netgen::mparam.maxh *= 1.1;
continue;
}
else
}
}
- occgeom_provider.release(id_occgeoComm, true);
- occgeom_provider.release(id_occgeom, true);
- mparam_provider.release(id_mparam);
- aMesh.Lock();
// ----------------------------------------------------
// Fill the SMESHDS with the generated nodes and faces
// ----------------------------------------------------
break;
} // two attempts
} // loop on FACEs
- aMesh.Unlock();
- nglib_provider.release(id_ngLib, true);
-
return true;
}
