--- /dev/null
+// Copyright (C) 2007-2023 CEA, EDF, 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_2D_Remote.cxx
+// Created : mardi 12 Decembre 2023
+// Author : Cesar Conopoima (OCC)
+// Project : SALOME
+//=============================================================================
+//
+//
+#include "NETGENPlugin_NETGEN_2D_Remote.hxx"
+
+#include "NETGENPlugin_DriverParam.hxx"
+#include "NETGENPlugin_Hypothesis.hxx"
+
+#include "Utils_SALOME_Exception.hxx"
+
+#include <SMESH_Gen.hxx>
+#include <SMESH_Mesh.hxx>
+#include <SMESH_ParallelMesh.hxx>
+#include <SMESH_MesherHelper.hxx>
+#include <SMESH_DriverShape.hxx>
+#include <SMESH_DriverMesh.hxx>
+#include <SMESHDS_Mesh.hxx>
+#include <SMESH_MeshLocker.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;
+
+//=============================================================================
+/*!
+ * Constructor
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_2D_Remote::NETGENPlugin_NETGEN_2D_Remote(int hypId, SMESH_Gen * gen)
+ : NETGENPlugin_NETGEN_2D_ONLY(hypId, gen)
+{
+ _name = "NETGEN_2D_Remote";
+}
+
+//=============================================================================
+/*!
+ * Destructor
+ */
+//=============================================================================
+
+NETGENPlugin_NETGEN_2D_Remote::~NETGENPlugin_NETGEN_2D_Remote()
+{
+}
+
+/**
+ * @brief Fill the structure netgen_param with the information from the hypothesis
+ *
+ * @param hyp the hypothesis
+ * @param aParams the netgen_param structure
+ */
+void NETGENPlugin_NETGEN_2D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
+{
+ aParams.myType = hypoType::Hypo;
+ 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();
+ aParams.closeedgefac = 2;
+ aParams.nbThreads = hyp->GetNbThreads();
+#else
+ // const char*
+ aParams.meshsizefilename = hyp->GetMeshSizeFile();
+ aParams.closeedgefac = 0;
+ aParams.nbThreads = 0;
+#endif
+}
+
+/**
+ * @brief write in a binary file the orientation for each surface element of the mesh
+ *
+ * @param aMesh The mesh
+ * @param aShape the shape associated to the mesh
+ * @param output_file name of the binary file
+ */
+void NETGENPlugin_NETGEN_2D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape,
+ const std::string output_file)
+{
+ std::ofstream df(output_file, ios::out|ios::binary);
+ int size=0;
+ df.write((char*)&size, sizeof(int));
+ df.close();
+}
+
+/**
+ * @brief Compute mesh associate to shape
+ *
+ * @param aMesh The mesh
+ * @param aShape The shape
+ * @return true fi there are some error
+ */
+bool NETGENPlugin_NETGEN_2D_Remote::Compute(SMESH_Mesh& aMesh,
+ const TopoDS_Shape& aShape)
+{
+ {
+ SMESH_MeshLocker myLocker(&aMesh);
+ SMESH_Hypothesis::Hypothesis_Status hypStatus;
+ NETGENPlugin_NETGEN_2D_ONLY::CheckHypothesis(aMesh, aShape, hypStatus);
+ }
+ SMESH_ParallelMesh& aParMesh = dynamic_cast<SMESH_ParallelMesh&>(aMesh);
+
+ // Temporary folder for run
+#ifdef WIN32
+ fs::path tmp_folder = aParMesh.GetTmpFolder() / fs::path("Volume-%%%%-%%%%");
+#else
+ fs::path tmp_folder = aParMesh.GetTmpFolder() / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
+#endif
+ fs::create_directories(tmp_folder);
+ // Using MESH2D generated after all triangles where created.
+ fs::path mesh_file=aParMesh.GetTmpFolder() / fs::path("Mesh1D.med"); // read the premeshed elements from 2D version
+ fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
+ fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
+ // 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("netgen_lenghtfromedge.txt"); /*becuase name contain 'lenghtfromedge' set length of 2D from premeshed 1D elements*/
+ fs::path log_file=tmp_folder / fs::path("run.log");
+ fs::path cmd_file=tmp_folder / fs::path("cmd.txt");
+ std::string mesh_name = "MESH";
+
+ {
+ SMESH_MeshLocker myLocker(&aMesh);
+ //Writing Shape
+ SMESH_DriverShape::exportShape(shape_file.string(), aShape);
+
+ //Writing hypo
+ // netgen_params aParams;
+ // fillParameters(_hypParameters, aParams);
+ // exportNetgenParams(param_file.string(), aParams);
+ {
+ // Simply write the file with the proper name
+ std::ofstream myfile(param_file);
+ myfile << 1 << std::endl;
+ myfile.close();
+ }
+
+ // Exporting element orientation
+ exportElementOrientation(aMesh, aShape, element_orientation_file.string());
+ }
+
+ // Calling run_mesher
+ // Path to mesher script
+ fs::path mesher_launcher = fs::path(std::getenv("SMESH_ROOT_DIR"))/
+ fs::path("bin")/
+ fs::path("salome")/
+ fs::path("mesher_launcher.py");
+
+
+ std::string s_program="python3";
+ std::list<std::string> params;
+ params.push_back(mesher_launcher.string());
+ params.push_back("NETGEN2D");
+ params.push_back(mesh_file.string());
+ params.push_back(shape_file.string());
+ params.push_back(param_file.string());
+ params.push_back("--elem-orient-file=" + element_orientation_file.string());
+ params.push_back("--new-element-file=" + new_element_file.string());
+ // params.push_back("--output-mesh-file=" + output_mesh_file.string());
+
+ // Parallelism method parameters
+ int method = aParMesh.GetParallelismMethod();
+ if(method == ParallelismMethod::MultiThread){
+ params.push_back("--method=local");
+ } else if (method == ParallelismMethod::MultiNode){
+ params.push_back("--method=cluster");
+ params.push_back("--resource="+aParMesh.GetResource());
+ params.push_back("--wc-key="+aParMesh.GetWcKey());
+ params.push_back("--nb-proc=1");
+ params.push_back("--nb-proc-per-node="+to_string(aParMesh.GetNbProcPerNode()));
+ params.push_back("--nb-node="+to_string(aParMesh.GetNbNode()));
+ params.push_back("--walltime="+aParMesh.GetWalltime());
+ } else {
+ throw SALOME_Exception("Unknown parallelism method "+method);
+ }
+ std::string cmd = "";
+ cmd += s_program;
+ for(auto arg: params){
+ cmd += " " + arg;
+ }
+ MESSAGE("Running command: ");
+ MESSAGE(cmd);
+ // Writing command in cmd.log
+ {
+ std::ofstream flog(cmd_file.string());
+ flog << cmd << endl;
+ }
+
+ // Building arguments for QProcess
+ QString program = QString::fromStdString(s_program);
+ QStringList arguments;
+ for(auto arg : params){
+ arguments << arg.c_str();
+ }
+
+ QString out_file = log_file.string().c_str();
+ QProcess myProcess;
+ // myProcess.setProcessChannelMode(QProcess::MergedChannels);
+ myProcess.setProcessChannelMode(QProcess::ForwardedChannels);
+ myProcess.setStandardOutputFile(out_file);
+
+ myProcess.start(program, arguments);
+ // Waiting for process to finish (argument -1 make it wait until the end of
+ // the process otherwise it just waits 30 seconds)
+ bool finished = myProcess.waitForFinished(-1);
+ int ret = myProcess.exitCode();
+ if(ret != 0 || !finished){
+ // Run crahed
+ std::string msg = "Issue with mesh_launcher: \n";
+ msg += "See log for more details: " + log_file.string() + "\n";
+ msg += cmd + "\n";
+ throw SALOME_Exception(msg);
+ }
+
+ {
+ SMESH_MeshLocker myLocker(&aMesh);
+ std::ifstream df(new_element_file.string(), ios::binary);
+
+ int totalPremeshedNodes;
+ int NetgenNbOfNodes;
+ int NetgenNbOfNodesNew;
+ int NetgenNbOfTriangles;
+ double NetgenPoint[3];
+ int NetgenTriangle[3];
+ int nodeID;
+
+ SMESH_MesherHelper helper(aMesh);
+ // This function is mandatory for setElementsOnShape to work
+ helper.IsQuadraticSubMesh(aShape);
+ helper.SetElementsOnShape( true );
+
+ df.read((char*) &totalPremeshedNodes, sizeof(int));
+ // Number of nodes in intial mesh
+ df.read((char*) &NetgenNbOfNodes, sizeof(int));
+ // Number of nodes added by netgen
+ df.read((char*) &NetgenNbOfNodesNew, sizeof(int));
+
+ // Filling nodevec (correspondence netgen numbering mesh numbering)
+ vector< const SMDS_MeshNode* > nodeVec ( NetgenNbOfNodesNew + 2 );
+ SMESHDS_Mesh * meshDS = helper.GetMeshDS();
+ for (int nodeIndex = 1; nodeIndex <= NetgenNbOfNodes; ++nodeIndex )
+ {
+ //Id of the point
+ df.read((char*) &nodeID, sizeof(int));
+ nodeVec.at(nodeID) = meshDS->FindNode(nodeID);
+ }
+
+ // Add new points and update nodeVec
+ for (int nodeIndex = totalPremeshedNodes + 1; nodeIndex <= NetgenNbOfNodesNew; ++nodeIndex )
+ {
+ df.read((char *) &NetgenPoint, sizeof(double)*3);
+ nodeVec.at(nodeIndex) = helper.AddNode(NetgenPoint[0], NetgenPoint[1], NetgenPoint[2]);
+ }
+
+ // Add triangles
+ df.read((char*) &NetgenNbOfTriangles, sizeof(int));
+ for ( int elemIndex = 1; elemIndex <= NetgenNbOfTriangles; ++elemIndex )
+ {
+ df.read((char*) &NetgenTriangle, sizeof(int)*3);
+ if ( nodeVec.at( NetgenTriangle[0] ) && nodeVec.at( NetgenTriangle[1] ) && nodeVec.at( NetgenTriangle[2] ) )
+ helper.AddFace(nodeVec.at( NetgenTriangle[0] ), nodeVec.at( NetgenTriangle[1] ), nodeVec.at( NetgenTriangle[2] ) );
+ }
+ }
+
+ return true;
+}
+
+/**
+ * @brief Assign submeshes to compute
+ *
+ * @param aSubMesh submesh to add
+ */
+void NETGENPlugin_NETGEN_2D_Remote::setSubMeshesToCompute(SMESH_subMesh * aSubMesh)
+{
+ SMESH_MeshLocker myLocker(aSubMesh->GetFather());
+ SMESH_Algo::setSubMeshesToCompute(aSubMesh);
+}
