--- /dev/null
+// Copyright (C) 2007-2021 CEA/DEN, EDF R&D, OPEN CASCADE
+//
+// Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
+// CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Lesser General Public
+// License as published by the Free Software Foundation; either
+// version 2.1 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+//
+// See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
+//
+
+//=============================================================================
+// File : NETGENPlugin_NETGEN_3D_Remote.cxx
+// Created : lundi 19 Septembre 2022
+// Author : Yoann AUDOUIN (CEA)
+// Project : SALOME
+//=============================================================================
+//
+//
+#include "NETGENPlugin_NETGEN_3D_Remote.hxx"
+
+#include "NETGENPlugin_NETGEN_3D.hxx"
+
+#include "NETGENPlugin_DriverParam.hxx"
+#include "NETGENPlugin_Hypothesis.hxx"
+
+#include <SMESH_Gen.hxx>
+#include <SMESH_Mesh.hxx>
+#include <SMESH_MesherHelper.hxx>
+#include <SMESH_DriverShape.hxx>
+#include <SMESH_DriverMesh.hxx>
+#include <SMESHDS_Mesh.hxx>
+
+#include <QString>
+#include <QProcess>
+
+#include <boost/filesystem.hpp>
+namespace fs = boost::filesystem;
+
+/*
+ Netgen include files
+*/
+
+#ifndef OCCGEOMETRY
+#define OCCGEOMETRY
+#endif
+#include <occgeom.hpp>
+
+#ifdef NETGEN_V5
+#include <ngexception.hpp>
+#endif
+#ifdef NETGEN_V6
+#include <core/exception.hpp>
+#endif
+
+namespace nglib {
+#include <nglib.h>
+}
+namespace netgen {
+
+ NETGENPLUGIN_DLL_HEADER
+ extern MeshingParameters mparam;
+
+ NETGENPLUGIN_DLL_HEADER
+ extern volatile multithreadt multithread;
+}
+using namespace nglib;
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_3D_Remote::NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen * gen)
+ : NETGENPlugin_NETGEN_3D(hypId, gen)
+{
+ _name = "NETGEN_3D_Remote";
+}
+
+//=============================================================================
+/*!
+ *
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_3D_Remote::~NETGENPlugin_NETGEN_3D_Remote()
+{
+}
+
+
+void NETGENPlugin_NETGEN_3D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
+{
+ 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();
+#endif
+#ifdef NETGEN_V6
+ aParams.closeedgefac = 2;
+#else
+ aParams.closeedgefac = 0;
+#endif
+}
+
+// write in a binary file the orientation for each 2D element of the mesh
+void NETGENPlugin_NETGEN_3D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ netgen_params& aParams,
+ const std::string output_file)
+{
+ SMESH_MesherHelper helper(aMesh);
+ NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
+ SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
+ std::map<vtkIdType, bool> elemOrientation;
+
+ for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
+ {
+ const TopoDS_Shape& aShapeFace = exFa.Current();
+ int faceID = aMesh.GetMeshDS()->ShapeToIndex( aShapeFace );
+ bool isInternalFace = internals.isInternalShape( faceID );
+ bool isRev = false;
+ if ( !isInternalFace &&
+ helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
+ // IsReversedSubMesh() can work wrong on strongly curved faces,
+ // so we use it as less as possible
+ isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
+
+ const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
+ if ( !aSubMeshDSFace ) continue;
+
+ SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
+ if ( aParams._quadraticMesh &&
+ dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
+ {
+ // add medium nodes of proxy triangles to helper (#16843)
+ while ( iteratorElem->more() )
+ helper.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 )
+ error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
+ if ( elem->NbCornerNodes() != 3 )
+ error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
+ elemOrientation[elem->GetID()] = isRev;
+ } // loop on elements on a face
+ } // loop on faces of a SOLID or SHELL
+
+ {
+ 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));
+ }
+ }
+}
+
+
+bool NETGENPlugin_NETGEN_3D_Remote::Compute(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape)
+{
+ aMesh.Lock();
+ SMESH_Hypothesis::Hypothesis_Status hypStatus;
+ NETGENPlugin_NETGEN_3D::CheckHypothesis(aMesh, aShape, hypStatus);
+
+
+ // Temporary folder for run
+ fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
+ fs::create_directories(tmp_folder);
+ // Using MESH2D generated after all triangles where created.
+ fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh2D.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");
+ // Not used kept for debug
+ //fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
+ fs::path shape_file=tmp_folder / fs::path("shape.brep");
+ fs::path param_file=tmp_folder / fs::path("netgen3d_param.txt");
+ fs::path log_file=tmp_folder / fs::path("run.log");
+ fs::path cmd_file=tmp_folder / fs::path("cmd.log");
+ //TODO: Handle variable mesh_name
+ std::string mesh_name = "Maillage_1";
+
+ //Writing Shape
+ exportShape(shape_file.string(), aShape);
+
+ //Writing hypo
+ netgen_params aParams;
+ std::cout << _hypParameters << std::endl;
+ fillParameters(_hypParameters, aParams);
+
+ exportNetgenParams(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("NETGENPlugin_Runner");
+
+ cmd = run_mesher_exe.string() +
+ " NETGEN3D " + mesh_file.string() + " "
+ + shape_file.string() + " "
+ + param_file.string() + " "
+ + element_orientation_file.string() + " "
+ + std::to_string(aMesh.GetMesherNbThreads()) + " "
+ + new_element_file.string() + " "
+ + "NONE";
+ // Writing command in log
+ {
+ std::ofstream flog(cmd_file.string());
+ flog << cmd << endl;
+ flog << endl;
+ }
+ //std::cout << "Running command: " << std::endl;
+ //std::cout << cmd << std::endl;
+
+
+ // Building arguments for QProcess
+ QString program = run_mesher_exe.c_str();
+ QStringList arguments;
+ arguments << "NETGEN3D";
+ arguments << mesh_file.c_str();
+ arguments << shape_file.c_str();
+ arguments << param_file.c_str();
+ arguments << element_orientation_file.c_str();
+ arguments << std::to_string(aMesh.GetMesherNbThreads()).c_str();
+ arguments << new_element_file.c_str();
+ arguments << "NONE";
+ QString out_file = log_file.c_str();
+ QProcess myProcess;
+ myProcess.setStandardOutputFile(out_file);
+
+ myProcess.start(program, arguments);
+ myProcess.waitForFinished();
+ int ret = myProcess.exitStatus();
+
+ if(ret != 0){
+ // Run crahed
+ std::cout << "Issue with command: " << std::endl;
+ std::cout << "See log for more details: " << log_file.string() << std::endl;
+ std::cout << cmd << std::endl;
+ return false;
+ }
+
+ aMesh.Lock();
+ {
+ std::ifstream df(new_element_file.string(), ios::binary);
+
+ int Netgen_NbOfNodes;
+ int Netgen_NbOfNodesNew;
+ int Netgen_NbOfTetra;
+ double Netgen_point[3];
+ int Netgen_tetrahedron[4];
+ int nodeID;
+
+ SMESH_MesherHelper helper(aMesh);
+ // This function is mandatory for setElementsOnShape to work
+ 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 );
+ //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) = meshDS->FindNode(nodeID);
+ }
+
+ // 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_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] ));
+ }
+ }
+
+ aMesh.Unlock();
+
+ return true;
+}
\ No newline at end of file
