*/
//================================================================================
-void NETGENPlugin_Mesher::SetDefaultParameters(netgen::MeshingParameters &mparams)
+void NETGENPlugin_Mesher::SetDefaultParameters()
{
+ netgen::MeshingParameters& mparams = netgen::mparam;
mparams = netgen::MeshingParameters();
// maximal mesh edge size
mparams.maxh = 0;//NETGENPlugin_Hypothesis::GetDefaultMaxSize();
*/
//================================================================================
-void NETGENPlugin_Mesher::SetDefaultParameters()
+void NETGENPlugin_Mesher::SetParameters(const NETGENPlugin_Hypothesis* hyp)
{
netgen::MeshingParameters& mparams = netgen::mparam;
- SetDefaultParameters(mparams);
-
-}
-
-void NETGENPlugin_Mesher::SetParameters(const NETGENPlugin_Hypothesis* hyp, netgen::MeshingParameters &mparams)
-{
// Initialize global NETGEN parameters:
// maximal mesh segment size
mparams.maxh = hyp->GetMaxSize();
#endif
}
-//=============================================================================
-/*!
- * Pass parameters to NETGEN
- */
-//=============================================================================
-void NETGENPlugin_Mesher::SetParameters(const NETGENPlugin_Hypothesis* hyp)
-{
- if (hyp)
- {
- netgen::MeshingParameters& mparams = netgen::mparam;
- SetParameters(hyp, mparams);
- }
-
-
-}
-
//=============================================================================
/*!
* Pass simple parameters to NETGEN
int NETGENPlugin_NetgenLibWrapper::GenerateMesh( netgen::OCCGeometry& occgeo,
int startWith, int endWith,
- netgen::Mesh* & ngMesh ,
- netgen::MeshingParameters& mparam)
+ netgen::Mesh* & ngMesh)
{
int err = 0;
if ( !ngMesh )
ngMesh->SetGeometry( shared_ptr<netgen::NetgenGeometry>( &occgeo, &NOOP_Deleter ));
- mparam.perfstepsstart = startWith;
- mparam.perfstepsend = endWith;
+ netgen::mparam.perfstepsstart = startWith;
+ netgen::mparam.perfstepsend = endWith;
std::shared_ptr<netgen::Mesh> meshPtr( ngMesh, &NOOP_Deleter );
- err = occgeo.GenerateMesh( meshPtr, mparam );
+ err = occgeo.GenerateMesh( meshPtr, netgen::mparam );
#else
#ifdef NETGEN_V5
- err = netgen::OCCGenerateMesh(occgeo, ngMesh, mparam, startWith, endWith);
+ err = netgen::OCCGenerateMesh(occgeo, ngMesh, netgen::mparam, startWith, endWith);
#else
namespace netgen {
class OCCGeometry;
class Mesh;
- class MeshingParameters;
- extern MeshingParameters mparam;
}
//=============================================================================
/*!
static int GenerateMesh(netgen::OCCGeometry& occgeo, int startWith, int endWith,
- netgen::Mesh* & ngMesh, netgen::MeshingParameters & mparam);
+ netgen::Mesh* & ngMesh);
int GenerateMesh(netgen::OCCGeometry& occgeo, int startWith, int endWith )
{
-
- return GenerateMesh( occgeo, startWith, endWith, _ngMesh, netgen::mparam );
+ return GenerateMesh( occgeo, startWith, endWith, _ngMesh );
}
- static int GenerateMesh(netgen::OCCGeometry& occgeo, int startWith, int endWith,
- netgen::Mesh* & ngMesh){
- return GenerateMesh(occgeo, startWith, endWith, ngMesh, netgen::mparam);
- };
+
static void CalcLocalH( netgen::Mesh * ngMesh );
static void RemoveTmpFiles();
void SetSelfPointer( NETGENPlugin_Mesher ** ptr );
void SetParameters(const NETGENPlugin_Hypothesis* hyp);
- void SetParameters(const NETGENPlugin_Hypothesis* hyp, netgen::MeshingParameters &mparams);
void SetParameters(const NETGENPlugin_SimpleHypothesis_2D* hyp);
void SetParameters(const StdMeshers_ViscousLayers* hyp );
void SetViscousLayers2DAssigned(bool isAssigned) { _isViscousLayers2D = isAssigned; }
const bool overrideMinH=true);
void SetDefaultParameters();
- void SetDefaultParameters(netgen::MeshingParameters &mparams);
static SMESH_ComputeErrorPtr ReadErrors(const std::vector< const SMDS_MeshNode* >& nodeVec);
#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;
}
#ifndef _NETGENPlugin_NETGEN_2D_ONLY_HXX_
#define _NETGENPlugin_NETGEN_2D_ONLY_HXX_
-#include "NETGENPlugin_Provider.hxx"
-
#include <SMESH_Algo.hxx>
#include <SMESH_Mesh.hxx>
class StdMeshers_MaxElementArea;
class StdMeshers_LengthFromEdges;
class NETGENPlugin_Hypothesis_2D;
-class NETGENPlugin_NetgenLibWrapper;
+class NETGENPlugin_Hypothesis;
+class netgen_params;
/*!
* \brief Mesher generating 2D elements on a geometrical face taking
const TopoDS_Shape& aShape,
Hypothesis_Status& aStatus);
+ void exportElementOrientation(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ netgen_params& aParams,
+ const std::string output_file);
+
+ void FillParameters(const NETGENPlugin_Hypothesis* hyp,
+ netgen_params &aParams);
+
+ virtual bool RemoteCompute(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape);
virtual bool Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape);
const NETGENPlugin_Hypothesis_2D* _hypParameters;
double _progressByTic;
-
- Provider<netgen::MeshingParameters, 4> mparam_provider;
- ProviderPtr<netgen::OCCGeometry, 8> occgeom_provider;
- ProviderPtr<NETGENPlugin_NetgenLibWrapper, 4> nglib_provider;
};
#endif
#endif
}
-// wirte in a binary file the orientation for each 2D element of the mesh
+// write in a binary file the orientation for each 2D element of the mesh
void NETGENPlugin_NETGEN_3D::exportElementOrientation(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
netgen_params& aParams,
const TopoDS_Shape& aShape)
{
aMesh.Lock();
+ auto time0 = std::chrono::high_resolution_clock::now();
SMESH_Hypothesis::Hypothesis_Status hypStatus;
CheckHypothesis(aMesh, aShape, hypStatus);
+ auto time1 = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time1-time0);
+ std::cout << "Time for check_hypo: " << elapsed.count() * 1e-9 << std::endl;
+
// Temporary folder for run
fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
//Writing Shape
export_shape(shape_file.string(), aShape);
+ auto time2 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time2-time1);
+ std::cout << "Time for export_shape: " << elapsed.count() * 1e-9 << std::endl;
+
//Writing hypo
netgen_params aParams;
FillParameters(_hypParameters, aParams);
export_netgen_params(param_file.string(), aParams);
+ auto time3 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time3-time2);
+ std::cout << "Time for fill+export param: " << elapsed.count() * 1e-9 << std::endl;
// Exporting element orientation
exportElementOrientation(aMesh, aShape, aParams, element_orientation_file.string());
+ auto time4 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time4-time3);
+ std::cout << "Time for exportElemnOrient: " << elapsed.count() * 1e-9 << std::endl;
aMesh.Unlock();
// Calling run_mesher
// TODO: Replace system by something else to handle redirection for windows
int ret = system(cmd.c_str());
+ auto time5 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time5-time4);
+ std::cout << "Time for exec of run_mesher: " << elapsed.count() * 1e-9 << std::endl;
// 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);
// Filling nodevec (correspondence netgen numbering mesh numbering)
vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
+ //vector<int> nodeTmpVec ( Netgen_NbOfNodesNew + 1 );
+ SMESHDS_Mesh * meshDS = helper.GetMeshDS();
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;
- }
+ nodeVec.at(nodeIndex) = meshDS->FindNode(nodeID);
}
+ auto time6 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time6-time5);
+ std::cout << "Time for exec of nodeVec: " << elapsed.count() * 1e-9 << std::endl;
+
+
// 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]);
+ Netgen_point[1],
+ Netgen_point[2]);
}
// Add tetrahedrons
df.read((char*) &Netgen_NbOfTetra, sizeof(int));
+
for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
{
df.read((char*) &Netgen_tetrahedron, sizeof(int)*4);
- helper.AddVolume (nodeVec.at( Netgen_tetrahedron[0] ),
- nodeVec.at( Netgen_tetrahedron[1] ),
- nodeVec.at( Netgen_tetrahedron[2] ),
- nodeVec.at( Netgen_tetrahedron[3] ));
+ helper.AddVolume(
+ nodeVec.at( Netgen_tetrahedron[0] ),
+ nodeVec.at( Netgen_tetrahedron[1] ),
+ nodeVec.at( Netgen_tetrahedron[2] ),
+ nodeVec.at( Netgen_tetrahedron[3] ));
}
df.close();
+ auto time7 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time7-time6);
+ std::cout << "Time for exec of add_in_mesh: " << elapsed.count() * 1e-9 << std::endl;
+ fs::remove_all(tmp_folder);
aMesh.Unlock();
return true;
{
if(aMesh.IsParallel())
return RemoteCompute(aMesh, aShape);
+ auto time0 = std::chrono::high_resolution_clock::now();
netgen::multithread.terminate = 0;
netgen::multithread.task = "Volume meshing";
// -------------------------
// Generate the volume mesh
// -------------------------
+ auto time1 = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time1-time0);
+ std::cout << "Time for seq:fill_in_ngmesh: " << elapsed.count() * 1e-9 << std::endl;
return (ngLib._isComputeOk = compute( aMesh, helper, nodeVec, ngLib ));
}
vector< const SMDS_MeshNode* >& nodeVec,
NETGENPlugin_NetgenLibWrapper& ngLib)
{
+ auto time0 = std::chrono::high_resolution_clock::now();
+
netgen::multithread.terminate = 0;
netgen::Mesh* ngMesh = ngLib._ngMesh;
try
{
OCC_CATCH_SIGNALS;
+ auto time0 = std::chrono::high_resolution_clock::now();
ngLib.CalcLocalH(ngMesh);
err = ngLib.GenerateMesh(occgeo, startWith, endWith);
str << " at " << netgen::multithread.task;
error(str);
}
+ auto time1 = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time1-time0);
+ std::cout << "Time for seq:compute: " << elapsed.count() * 1e-9 << std::endl;
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
}
}
}
+ auto time2 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time2-time1);
+ std::cout << "Time for seq:compute: " << elapsed.count() * 1e-9 << std::endl;
+
return !err;
}
#include <vector>
#include <filesystem>
namespace fs = std::filesystem;
+#include <chrono>
// SMESH include
#include <SMESH_Mesh.hxx>
+#include <SMESH_subMesh.hxx>
#include <SMESH_Gen.hxx>
#include <SMESH_Algo.hxx>
#include <SMESHDS_Mesh.hxx>
#include <StdMeshers_MaxElementVolume.hxx>
#include <StdMeshers_QuadToTriaAdaptor.hxx>
#include <StdMeshers_ViscousLayers.hxx>
+#include <StdMeshers_ViscousLayers2D.hxx>
+
// NETGENPlugin
// #include <NETGENPlugin_Mesher.hxx>
#define OCCGEOMETRY
#endif
#include <occgeom.hpp>
+#include <meshing.hpp>
#ifdef NETGEN_V5
#include <ngexception.hpp>
namespace netgen {
NETGENPLUGIN_DLL_HEADER
+ extern MeshingParameters mparam;
NETGENPLUGIN_DLL_HEADER
extern volatile multithreadt multithread;
NETGENPLUGIN_DLL_HEADER
extern bool merge_solids;
+
+#ifdef NETGEN_V5
+ extern void OCCSetLocalMeshSize(OCCGeometry & geom, Mesh & mesh);
+#endif
}
using namespace nglib;
-int error(int error_type, std::string msg){
+int error(int error_type, std::string msg)
+{
std::cerr << msg << std::endl;
return error_type;
};
-int error(const SMESH_Comment& comment){
+int error(const SMESH_Comment& comment)
+{
return error(1, "SMESH_Comment error: "+comment);
};
* @param aParams Internal structure of parameters
* @param mparams Netgen strcuture of parameters
*/
-void set_netgen_parameters(netgen_params& aParams){
+void set_netgen_parameters(netgen_params& aParams)
+{
// Default parameters
#ifdef NETGEN_V6
- netgen::mparam.nthreads = std::thread::hardware_concurrency();
+ //netgen::mparam.nthreads = std::thread::hardware_concurrency();
+ netgen::mparam.nthreads = 2;
+ //netgen::mparam.parallel_meshing = false;
+
if ( getenv( "SALOME_NETGEN_DISABLE_MULTITHREADING" ))
{
}
/**
- * @brief compute mesh with netgen
+ * @brief compute mesh with netgen3d
*
* @param input_mesh_file Input Mesh file
* @param shape_file Shape file
const std::string element_orientation_file,
const std::string new_element_file,
bool output_mesh,
- const std::string output_mesh_file){
-
+ const std::string output_mesh_file)
+{
+ auto time0 = std::chrono::high_resolution_clock::now();
// Importing mesh
SMESH_Gen gen;
std::string mesh_name = "Maillage_1";
import_mesh(input_mesh_file, *myMesh, mesh_name);
+ auto time1 = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time1-time0);
+ std::cout << "Time for import_mesh: " << elapsed.count() * 1e-9 << std::endl;
// Importing shape
TopoDS_Shape myShape;
import_shape(shape_file, myShape);
+ auto time2 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time2-time1);
+ std::cout << "Time for import_shape: " << elapsed.count() * 1e-9 << std::endl;
// Importing hypothesis
- //TODO: make it
netgen_params myParams;
import_netgen_params(hypo_file, myParams);
+ auto time3 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time3-time2);
+ std::cout << "Time for import_netgen_param: " << elapsed.count() * 1e-9 << std::endl;
std::cout << "Meshing with netgen3d" << std::endl;
int ret = netgen3d(myShape, *myMesh, myParams,
new_element_file, element_orientation_file,
output_mesh);
+
if(!ret){
std::cout << "Meshing failed" << std::endl;
return ret;
}
- if(output_mesh)
+ if(output_mesh){
+ auto time4 = std::chrono::high_resolution_clock::now();
export_mesh(output_mesh_file, *myMesh, mesh_name);
+ auto time5 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time5-time4);
+ std::cout << "Time for export_mesh: " << elapsed.count() * 1e-9 << std::endl;
+ }
return ret;
}
/**
- * @brief Compute aShape within aMesh using netgen
+ * @brief Compute aShape within aMesh using netgen3d
*
* @param aShape the shape
* @param aMesh the mesh
*/
int netgen3d(TopoDS_Shape &aShape, SMESH_Mesh& aMesh, netgen_params& aParams,
std::string new_element_file, std::string element_orientation_file,
- bool output_mesh){
+ bool output_mesh)
+{
+
+ auto time0 = std::chrono::high_resolution_clock::now();
netgen::multithread.terminate = 0;
netgen::multithread.task = "Volume meshing";
// Adding elements from Mesh
SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
- int nbedge = meshDS->NbEdges();
- int nbface = meshDS->NbFaces();
bool isRev;
bool isInternalFace = false;
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
- int tmp = elem->GetShapeID();
if ( !elem )
return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
if ( elem->NbCornerNodes() != 3 )
// internals);
//}
}
+ auto time1 = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time1-time0);
+ std::cout << "Time for fill_in_ngmesh: " << elapsed.count() * 1e-9 << std::endl;
// -------------------------
// Generate the volume mesh
OCC_CATCH_SIGNALS;
ngLib.CalcLocalH(ngMesh);
- err = ngLib.GenerateMesh(occgeo, startWith, endWith, ngMesh, netgen::mparam);
+ err = ngLib.GenerateMesh(occgeo, startWith, endWith, ngMesh);
if(netgen::multithread.terminate)
return false;
if ( ce && ce->HasBadElems() )
return error( ce );
}
+ auto time2 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time2-time1);
+ std::cout << "Time for netgen_compute: " << elapsed.count() * 1e-9 << std::endl;
bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
if ( isOK )
}
df.close();
}
+ auto time3 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time3-time2);
+ std::cout << "Time for write_new_elem: " << elapsed.count() * 1e-9 << std::endl;
+
// Adding new files in aMesh as well
if ( output_mesh )
{
}
}
+ auto time4 = std::chrono::high_resolution_clock::now();
+ elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(time4-time3);
+ std::cout << "Time for add_element_to_smesh: " << elapsed.count() * 1e-9 << std::endl;
+
}
return !err;
+}
+
+/**
+ * @brief compute mesh with netgen2d
+ *
+ * @param input_mesh_file Input Mesh file
+ * @param shape_file Shape file
+ * @param hypo_file Parameter file
+ * @param new_element_file Binary file containing new nodes and new element info
+ * @param output_mesh If true will export mesh into output_mesh_file
+ * @param output_mesh_file Output Mesh file
+ *
+ * @return error code
+ */
+int netgen2d(const std::string input_mesh_file,
+ const std::string shape_file,
+ const std::string hypo_file,
+ const std::string element_orientation_file,
+ const std::string new_element_file,
+ bool output_mesh,
+ const std::string output_mesh_file)
+{
+
+ // Importing mesh
+ SMESH_Gen gen;
+
+ SMESH_Mesh *myMesh = gen.CreateMesh(false);
+ //TODO: To define
+ std::string mesh_name = "Maillage_1";
+
+ import_mesh(input_mesh_file, *myMesh, mesh_name);
+
+ // Importing shape
+ TopoDS_Shape myShape;
+ import_shape(shape_file, myShape);
+
+ // Importing hypothesis
+ netgen_params myParams;
+
+ import_netgen_params(hypo_file, myParams);
+
+ std::cout << "Meshing with netgen3d" << std::endl;
+ int ret = netgen2d(myShape, *myMesh, myParams,
+ new_element_file, element_orientation_file,
+ output_mesh);
+
+ if(!ret){
+ std::cout << "Meshing failed" << std::endl;
+ return ret;
+ }
+
+ if(output_mesh)
+ export_mesh(output_mesh_file, *myMesh, mesh_name);
+
+ return ret;
+}
+
+/**
+ * @brief Compute aShape within aMesh using netgen2d
+ *
+ * @param aShape the shape
+ * @param aMesh the mesh
+ * @param aParams the netgen parameters
+ * @param new_element_file file containing data on the new point/tetra added by netgen
+ *
+ * @return error code
+ */
+int netgen2d(TopoDS_Shape &aShape, SMESH_Mesh& aMesh, netgen_params& aParams,
+ std::string new_element_file, std::string element_orientation_file,
+ bool output_mesh)
+{
+ netgen::multithread.terminate = 0;
+ netgen::multithread.task = "Surface meshing";
+
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+ SMESH_MesherHelper helper(aMesh);
+ helper.SetElementsOnShape( true );
+
+ NETGENPlugin_NetgenLibWrapper ngLib;
+ ngLib._isComputeOk = false;
+
+ netgen::Mesh ngMeshNoLocSize;
+ netgen::Mesh * ngMeshes[2] = { (netgen::Mesh*) ngLib._ngMesh, & ngMeshNoLocSize };
+ netgen::OCCGeometry occgeoComm;
+
+ std::map<vtkIdType, bool> elemOrientation;
+
+ typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
+ typedef TNodeToIDMap::value_type TN2ID;
+ const int invalid_ID = -1;
+ int Netgen_NbOfNodes=0;
+ double Netgen_point[3];
+ int Netgen_segment[2];
+ int Netgen_triangle[3];
+
+ // min / max sizes are set as follows:
+ // if ( _hypParameters )
+ // min and max are defined by the user
+ // else if ( aParams.has_LengthFromEdges_hyp )
+ // min = aMesher.GetDefaultMinSize()
+ // max = average segment len of a FACE
+ // else if ( _hypMaxElementArea )
+ // min = aMesher.GetDefaultMinSize()
+ // max = f( _hypMaxElementArea )
+ // else
+ // min = aMesher.GetDefaultMinSize()
+ // max = max segment len of a FACE
+ NETGENPlugin_Mesher aMesher( &aMesh, aShape, /*isVolume=*/false);
+ set_netgen_parameters( aParams );
+ const bool toOptimize = aParams.optimize;
+ if ( aParams.has_maxelementvolume_hyp )
+ {
+ netgen::mparam.maxh = sqrt( 2. * aParams.maxElementVolume / sqrt(3.0) );
+ }
+ netgen::mparam.quad = aParams.quad;
+
+ // local size is common for all FACEs in aShape?
+ const bool isCommonLocalSize = ( !aParams.has_LengthFromEdges_hyp && !aParams.has_maxelementvolume_hyp && netgen::mparam.uselocalh );
+ const bool isDefaultHyp = ( !aParams.has_LengthFromEdges_hyp && !aParams.has_maxelementvolume_hyp && !aParams.has_netgen_param );
+
+
+ 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 );
+
+ // local size set at MESHCONST_ANALYSE step depends on
+ // minh, face_maxh, grading and curvaturesafety; find minh if not set by the user
+ if ( !aParams.has_netgen_param || netgen::mparam.minh < DBL_MIN )
+ {
+ if ( !aParams.has_netgen_param )
+ 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
+ const double factor = 2; //netgen::occparam.resthcloseedgefac;
+#else
+ const double factor = netgen::occparam.resthcloseedgefac;
+ netgen::occparam.resthcloseedgeenable = false;
+ netgen::occparam.resthcloseedgefac = 1.0 + netgen::mparam.grading;
+#endif
+ occgeoComm.face_maxh = netgen::mparam.maxh;
+#ifdef NETGEN_V6
+ netgen::OCCParameters occparam;
+ netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0], netgen::mparam, occparam );
+#else
+ netgen::OCCSetLocalMeshSize( occgeoComm, *ngMeshes[0] );
+#endif
+ occgeoComm.emap.Clear();
+ occgeoComm.vmap.Clear();
+
+ // Reading list of element to integrate into netgen mesh
+ std::ifstream df(element_orientation_file, ios::in|ios::binary);
+ int nbElement;
+ vtkIdType id;
+ bool orient;
+ 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;
+ }
+ df.close();
+
+ bool isIn;
+ // set local size according to size of existing segments
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Edge);
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ const SMDS_MeshElement* seg = iteratorElem->next();
+ // Keeping only element that are in the element orientation file
+ isIn = elemOrientation.count(seg->GetID())==1;
+
+ if(!isIn)
+ continue;
+
+ SMESH_TNodeXYZ n1 = seg->GetNode(0);
+ SMESH_TNodeXYZ n2 = seg->GetNode(1);
+ gp_XYZ p = 0.5 * ( n1 + n2 );
+ netgen::Point3d pi(p.X(), p.Y(), p.Z());
+ ngMeshes[0]->RestrictLocalH( pi, factor * ( n1 - n2 ).Modulus() );
+ }
+
+ // set local size defined on shapes
+ aMesher.SetLocalSize( occgeoComm, *ngMeshes[0] );
+ aMesher.SetLocalSizeForChordalError( occgeoComm, *ngMeshes[0] );
+ try {
+ ngMeshes[0]->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
+ } catch (netgen::NgException & ex) {
+ return error( COMPERR_BAD_PARMETERS, ex.What() );
+ }
+ }
+ netgen::mparam.uselocalh = toOptimize; // restore as it is used at surface optimization
+ // ==================
+ // Loop on all FACEs
+ // ==================
+
+ vector< const SMDS_MeshNode* > nodeVec;
+
+ // TopExp_Explorer fExp( aShape, TopAbs_FACE );
+ // for ( int iF = 0; fExp.More(); fExp.Next(), ++iF )
+ // {
+ // TopoDS_Face F = TopoDS::Face( fExp.Current() /*.Oriented( TopAbs_FORWARD )*/);
+ // int faceID = meshDS->ShapeToIndex( F );
+ // SMESH_ComputeErrorPtr& faceErr = aMesh.GetSubMesh( F )->GetComputeError();
+
+ // aParams._quadraticMesh = helper.IsQuadraticSubMesh( F );
+ // const bool ignoreMediumNodes = aParams._quadraticMesh;
+
+ // // build viscous layers if required
+ // if ( F.Orientation() != TopAbs_FORWARD &&
+ // F.Orientation() != TopAbs_REVERSED )
+ // F.Orientation( TopAbs_FORWARD ); // avoid pb with TopAbs_INTERNAL
+ // SMESH_ProxyMesh::Ptr proxyMesh = StdMeshers_ViscousLayers2D::Compute( aMesh, F );
+ // if ( !proxyMesh )
+ // continue;
+
+ // // ------------------------
+ // // get all EDGEs of a FACE
+ // // ------------------------
+ // TSideVector wires =
+ // StdMeshers_FaceSide::GetFaceWires( F, aMesh, ignoreMediumNodes, faceErr, &helper, proxyMesh );
+ // if ( faceErr && !faceErr->IsOK() )
+ // continue;
+ // size_t nbWires = wires.size();
+ // if ( nbWires == 0 )
+ // {
+ // faceErr.reset
+ // ( new SMESH_ComputeError
+ // ( COMPERR_ALGO_FAILED, "Problem in StdMeshers_FaceSide::GetFaceWires()" ));
+ // continue;
+ // }
+ // if ( wires[0]->NbSegments() < 3 ) // ex: a circle with 2 segments
+ // {
+ // faceErr.reset
+ // ( new SMESH_ComputeError
+ // ( COMPERR_BAD_INPUT_MESH, SMESH_Comment("Too few segments: ")<<wires[0]->NbSegments()) );
+ // continue;
+ // }
+
+ // // ----------------------
+ // // compute maxh of a FACE
+ // // ----------------------
+
+ // if ( !aParams.has_netgen_param )
+ // {
+ // double edgeLength = 0;
+ // if (aParams.has_LengthFromEdges_hyp )
+ // {
+ // // compute edgeLength as an average segment length
+ // smIdType nbSegments = 0;
+ // for ( size_t iW = 0; iW < nbWires; ++iW )
+ // {
+ // edgeLength += wires[ iW ]->Length();
+ // nbSegments += wires[ iW ]->NbSegments();
+ // }
+ // if ( nbSegments )
+ // edgeLength /= double( nbSegments );
+ // netgen::mparam.maxh = edgeLength;
+ // }
+ // else if ( isDefaultHyp )
+ // {
+ // // set edgeLength by a longest segment
+ // double maxSeg2 = 0;
+ // for ( size_t iW = 0; iW < nbWires; ++iW )
+ // {
+ // const UVPtStructVec& points = wires[ iW ]->GetUVPtStruct();
+ // if ( points.empty() )
+ // return error( COMPERR_BAD_INPUT_MESH );
+ // gp_Pnt pPrev = SMESH_TNodeXYZ( points[0].node );
+ // for ( size_t i = 1; i < points.size(); ++i )
+ // {
+ // gp_Pnt p = SMESH_TNodeXYZ( points[i].node );
+ // maxSeg2 = Max( maxSeg2, p.SquareDistance( pPrev ));
+ // pPrev = p;
+ // }
+ // }
+ // edgeLength = sqrt( maxSeg2 ) * 1.05;
+ // netgen::mparam.maxh = edgeLength;
+ // }
+ // if ( netgen::mparam.maxh < DBL_MIN )
+ // netgen::mparam.maxh = occgeoComm.GetBoundingBox().Diam();
+
+ // if ( !isCommonLocalSize )
+ // {
+ // netgen::mparam.minh = aMesher.GetDefaultMinSize( F, netgen::mparam.maxh );
+ // }
+ // }
+
+
+
+ // prepare occgeom
+ netgen::OCCGeometry occgeom;
+ occgeom.shape = aShape;
+ occgeom.fmap.Add( aShape );
+ 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
+ // -------------------------
+ // maps nodes to ng ID
+
+
+ // MESHCONST_ANALYSE step may lead to a failure, so we make an attempt
+ // w/o MESHCONST_ANALYSE at the second loop
+ int err = 0;
+ enum { LOC_SIZE, NO_LOC_SIZE };
+ int iLoop = isCommonLocalSize ? 0 : 1;
+ int faceID = occgeom.fmap.FindIndex(aShape);
+ int solidID = 0;
+ for ( ; iLoop < 2; iLoop++ )
+ {
+ //bool isMESHCONST_ANALYSE = false;
+ //TODO: check how to replace that
+ //InitComputeError();
+
+ netgen::Mesh * ngMesh = ngMeshes[ iLoop ];
+ ngMesh->DeleteMesh();
+
+ if ( iLoop == NO_LOC_SIZE )
+ {
+ ngMesh->SetGlobalH ( netgen::mparam.maxh );
+ ngMesh->SetMinimalH( netgen::mparam.minh );
+ netgen::Box<3> bb = occgeom.GetBoundingBox();
+ bb.Increase (bb.Diam()/10);
+ ngMesh->SetLocalH (bb.PMin(), bb.PMax(), netgen::mparam.grading);
+ aMesher.SetLocalSize( occgeom, *ngMesh );
+ aMesher.SetLocalSizeForChordalError( occgeoComm, *ngMesh );
+ try {
+ ngMesh->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
+ } catch (netgen::NgException & ex) {
+ return error( COMPERR_BAD_PARMETERS, ex.What() );
+ }
+ }
+
+ TNodeToIDMap nodeToNetgenID;
+
+ nodeVec.clear();
+ ngMesh->AddFaceDescriptor( netgen::FaceDescriptor( faceID, solidID, solidID, 0 ));
+ // set local size according to size of existing segments
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Edge);
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ const SMDS_MeshElement* elem = iteratorElem->next();
+ // Keeping only element that are in the element orientation file
+ bool isIn = elemOrientation.count(elem->GetID())==1;
+
+ if(!isIn)
+ continue;
+
+ bool isRev = elemOrientation[elem->GetID()];
+ std::cerr << isRev;
+
+
+
+ for ( int iN = 0; iN < 2; ++iN )
+ {
+ const SMDS_MeshNode* node = elem->GetNode( iN );
+ const int shapeID = node->getshapeId();
+ 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();
+ netgen::MeshPoint mp( netgen::Point<3> (node->X(), node->Y(), node->Z()) );
+ ngMesh->AddPoint ( mp, 1, netgen::EDGEPOINT );
+ }
+ Netgen_segment[ isRev ? 1-iN : iN ] = ngID;
+ }
+ // add segment
+
+ netgen::Segment seg;
+ seg[0] = Netgen_segment[0];
+ seg[1] = Netgen_segment[1];
+ seg.edgenr = ngMesh->GetNSeg() +1;
+ seg.si = faceID;
+
+ ngMesh->AddSegment(seg);
+ }
+ int nbNodes2 = ngMesh->GetNP();
+ int nseg = ngMesh->GetNSeg();
+
+ // insert old nodes into nodeVec
+ nodeVec.resize( nodeToNetgenID.size() + 1, 0 );
+ TNodeToIDMap::iterator n_id = nodeToNetgenID.begin();
+ for ( ; n_id != nodeToNetgenID.end(); ++n_id )
+ nodeVec[ n_id->second ] = n_id->first;
+ nodeToNetgenID.clear();
+
+
+ //if ( !isCommonLocalSize )
+ //limitSize( ngMesh, mparam.maxh * 0.8);
+
+ // -------------------------
+ // Generate surface mesh
+ // -------------------------
+
+ const int startWith = netgen::MESHCONST_MESHSURFACE;
+ const int endWith = toOptimize ? netgen::MESHCONST_OPTSURFACE : netgen::MESHCONST_MESHSURFACE;
+
+ SMESH_Comment str;
+ try {
+ OCC_CATCH_SIGNALS;
+ err = ngLib.GenerateMesh(occgeom, startWith, endWith, ngMesh);
+ if ( netgen::multithread.terminate )
+ return false;
+ if ( err )
+ str << "Error in netgen::OCCGenerateMesh() at " << netgen::multithread.task;
+ }
+ catch (Standard_Failure& ex)
+ {
+ err = 1;
+ str << "Exception in netgen::OCCGenerateMesh()"
+ << " at " << netgen::multithread.task
+ << ": " << ex.DynamicType()->Name();
+ if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
+ str << ": " << ex.GetMessageString();
+ }
+ catch (...) {
+ err = 1;
+ str << "Exception in netgen::OCCGenerateMesh()"
+ << " at " << netgen::multithread.task;
+ }
+ if ( err )
+ {
+ if ( iLoop == LOC_SIZE )
+ {
+ std::cout << "Need second run" << std::endl;
+ /*netgen::mparam.minh = netgen::mparam.maxh;
+ netgen::mparam.maxh = 0;
+ for ( size_t iW = 0; iW < wires.size(); ++iW )
+ {
+ StdMeshers_FaceSidePtr wire = wires[ iW ];
+ const vector<UVPtStruct>& uvPtVec = wire->GetUVPtStruct();
+ for ( size_t iP = 1; iP < uvPtVec.size(); ++iP )
+ {
+ SMESH_TNodeXYZ p( uvPtVec[ iP ].node );
+ netgen::Point3d np( p.X(),p.Y(),p.Z());
+ double segLen = p.Distance( uvPtVec[ iP-1 ].node );
+ double size = ngMesh->GetH( np );
+ netgen::mparam.minh = Min( netgen::mparam.minh, size );
+ netgen::mparam.maxh = Max( netgen::mparam.maxh, segLen );
+ }
+ }
+ //cerr << "min " << mparam.minh << " max " << mparam.maxh << endl;
+ netgen::mparam.minh *= 0.9;
+ netgen::mparam.maxh *= 1.1;
+ */
+ continue;
+ }
+ else
+ {
+ //faceErr.reset( new SMESH_ComputeError( COMPERR_ALGO_FAILED, str ));
+ }
+ }
+
+ // ----------------------------------------------------
+ // Fill the SMESHDS with the generated nodes and faces
+ // ----------------------------------------------------
+
+ if(output_mesh)
+ {
+ int nbNodes = ngMesh->GetNP();
+ int nbFaces = ngMesh->GetNSE();
+ std::cout << nbFaces << " " << nbNodes << std::endl;
+
+ int nbInputNodes = (int) nodeVec.size()-1;
+ nodeVec.resize( nbNodes+1, 0 );
+
+ // add nodes
+ for ( int ngID = nbInputNodes + 1; ngID <= nbNodes; ++ngID )
+ {
+ const netgen::MeshPoint& ngPoint = ngMesh->Point( ngID );
+ SMDS_MeshNode * node = meshDS->AddNode(ngPoint(0), ngPoint(1), ngPoint(2));
+ nodeVec[ ngID ] = node;
+ }
+
+ // create faces
+ int i,j;
+ for ( i = 1; i <= nbFaces ; ++i )
+ {
+ Ng_GetVolumeElement(ngLib.ngMesh(), i, Netgen_triangle);
+
+ helper.AddFace (nodeVec.at( Netgen_triangle[0] ),
+ nodeVec.at( Netgen_triangle[1] ),
+ nodeVec.at( Netgen_triangle[2] ));
+
+ }
+ } // output_mesh
+
+ break;
+ } // two attempts
+ //} // loop on FACEs
+
+ return true;
+
}
\ No newline at end of file
class SMESH_Comment;
class netgen_params;
+int netgen2d(TopoDS_Shape &aShape,
+ SMESH_Mesh& aMesh,
+ netgen_params& aParams,
+ std::string new_element_file,
+ std::string element_orientation_file,
+ bool output_mesh);
+int netgen2d(const std::string input_mesh_file,
+ const std::string shape_file,
+ const std::string hypo_file,
+ const std::string element_orienation_file,
+ const std::string new_element_file,
+ bool output_mesh,
+ const std::string output_mesh_file);
+
int netgen3d(TopoDS_Shape &aShape,
SMESH_Mesh& aMesh,
netgen_params& aParams,
#include <string>
#include <cassert>
+
+// TODO: Error handling of read/write
+
/**
* @brief Print content of a netgen_params
*
* @param aParams The object to display
*/
void print_netgen_params(netgen_params& aParams){
+ // TODO: prettier print
+ // TODO: Add call to print in log
std::cout << "has_netgen_param: " << aParams.has_netgen_param << std::endl;
std::cout << "maxh: " << aParams.maxh << std::endl;
std::cout << "minh: " << aParams.minh << std::endl;
std::cout << "delaunay: " << aParams.delaunay << std::endl;
std::cout << "checkoverlap: " << aParams.checkoverlap << std::endl;
std::cout << "checkchartboundary: " << aParams.checkchartboundary << std::endl;
+ std::cout << "closeedgefac: " << aParams.closeedgefac << std::endl;
std::cout << "has_local_size: " << aParams.has_local_size << std::endl;
std::cout << "meshsizefilename: " << aParams.meshsizefilename << std::endl;
std::cout << "has_maxelementvolume_hyp: " << aParams.has_maxelementvolume_hyp << std::endl;
std::cout << "maxElementVolume: " << aParams.maxElementVolume << std::endl;
- std::cout << "closeedgefac: " << aParams.closeedgefac << std::endl;
+ std::cout << "has_LengthFromEdges_hyp: " << aParams.has_LengthFromEdges_hyp << std::endl;
}
/**
aParams.has_maxelementvolume_hyp = std::stoi(line);
std::getline(myfile, line);
aParams.maxElementVolume = std::stod(line);
+ std::getline(myfile, line);
+ aParams.maxElementVolume = std::stoi(line);
myfile.close();
};
myfile << aParams.meshsizefilename << std::endl;
myfile << aParams.has_maxelementvolume_hyp << std::endl;
myfile << aParams.maxElementVolume << std::endl;
+ myfile << aParams.has_LengthFromEdges_hyp << std::endl;
myfile.close();
};
ret &= params1.meshsizefilename == params2.meshsizefilename;
ret &= params1.has_maxelementvolume_hyp == params2.has_maxelementvolume_hyp;
ret &= params1.maxElementVolume == params2.maxElementVolume;
+ ret &= params1.has_LengthFromEdges_hyp == params2.has_LengthFromEdges_hyp;
return ret;
}
StdMeshers_ViscousLayers* _viscousLayersHyp=nullptr;
//double _progressByTic;
bool _quadraticMesh=false;
+
+ // Params from NETGEN2D
+ bool has_LengthFromEdges_hyp=false;
};
void print_netgen_params(netgen_params& aParams);
#include <TopoDS_Shape.hxx>
#include <iostream>
+#include <chrono>
+
/**
* @brief Test of shape Import/Export
*
std::cout << " ELEM_ORIENT_FILE NEW_ELEMENT_FILE OUTPUT_MESH_FILE" << std::endl;
std::cout << std::endl;
std::cout << "Args:" << std::endl;
- std::cout << " MESHER: mesher to use from (NETGEN3D)" << std::endl;
+ std::cout << " MESHER: mesher to use from (NETGEN3D, NETGEN2D)" << std::endl;
std::cout << " INPUT_MESH_FILE: MED File containing lower-dimension-elements already meshed" << std::endl;
std::cout << " SHAPE_FILE: STEP file containing the shape to mesh" << std::endl;
std::cout << " HYPO_FILE: Ascii file containint the list of parameters" << std::endl;
test_netgen_params();
test_netgen3d();
} else if (mesher=="NETGEN3D"){
+ auto begin = std::chrono::high_resolution_clock::now();
netgen3d(input_mesh_file,
shape_file,
hypo_file,
new_element_file,
output_mesh,
output_mesh_file);
+ auto end = std::chrono::high_resolution_clock::now();
+ auto elapsed = std::chrono::duration_cast<std::chrono::nanoseconds>(end - begin);
+ std::cout << "Time elapsed: " << elapsed.count()*1e-9 << std::endl;
+ } else if (mesher=="NETGEN2D"){
+ netgen2d(input_mesh_file,
+ shape_file,
+ hypo_file,
+ element_orientation_file,
+ new_element_file,
+ output_mesh,
+ output_mesh_file);
} else {
std::cerr << "Unknown mesher:" << mesher << std::endl;
}
