1 // Copyright (C) 2007-2022 CEA/DEN, EDF R&D, OPEN CASCADE
3 // Copyright (C) 2003-2007 OPEN CASCADE, EADS/CCR, LIP6, CEA/DEN,
4 // CEDRAT, EDF R&D, LEG, PRINCIPIA R&D, BUREAU VERITAS
6 // This library is free software; you can redistribute it and/or
7 // modify it under the terms of the GNU Lesser General Public
8 // License as published by the Free Software Foundation; either
9 // version 2.1 of the License, or (at your option) any later version.
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14 // Lesser General Public License for more details.
16 // You should have received a copy of the GNU Lesser General Public
17 // License along with this library; if not, write to the Free Software
18 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20 // See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
23 //=============================================================================
24 // File : NETGENPlugin_NETGEN_3D_Remote.cxx
25 // Created : lundi 19 Septembre 2022
26 // Author : Yoann AUDOUIN (CEA)
28 //=============================================================================
31 #include "NETGENPlugin_NETGEN_3D_Remote.hxx"
33 #include "NETGENPlugin_NETGEN_3D.hxx"
35 #include "NETGENPlugin_DriverParam.hxx"
36 #include "NETGENPlugin_Hypothesis.hxx"
38 #include "Utils_SALOME_Exception.hxx"
40 #include <SMESH_Gen.hxx>
41 #include <SMESH_Mesh.hxx>
42 #include <SMESH_MesherHelper.hxx>
43 #include <SMESH_DriverShape.hxx>
44 #include <SMESH_DriverMesh.hxx>
45 #include <SMESHDS_Mesh.hxx>
46 #include <SMESH_MeshLocker.hxx>
51 #include <boost/filesystem.hpp>
52 namespace fs = boost::filesystem;
61 #include <occgeom.hpp>
64 #include <ngexception.hpp>
67 #include <core/exception.hpp>
75 NETGENPLUGIN_DLL_HEADER
76 extern MeshingParameters mparam;
78 NETGENPLUGIN_DLL_HEADER
79 extern volatile multithreadt multithread;
81 using namespace nglib;
83 //=============================================================================
87 //=============================================================================
89 NETGENPlugin_NETGEN_3D_Remote::NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen * gen)
90 : NETGENPlugin_NETGEN_3D(hypId, gen)
92 _name = "NETGEN_3D_Remote";
95 //=============================================================================
99 //=============================================================================
101 NETGENPlugin_NETGEN_3D_Remote::~NETGENPlugin_NETGEN_3D_Remote()
106 void NETGENPlugin_NETGEN_3D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
108 aParams.maxh = hyp->GetMaxSize();
109 aParams.minh = hyp->GetMinSize();
110 aParams.segmentsperedge = hyp->GetNbSegPerEdge();
111 aParams.grading = hyp->GetGrowthRate();
112 aParams.curvaturesafety = hyp->GetNbSegPerRadius();
113 aParams.secondorder = hyp->GetSecondOrder() ? 1 : 0;
114 aParams.quad = hyp->GetQuadAllowed() ? 1 : 0;
115 aParams.optimize = hyp->GetOptimize();
116 aParams.fineness = hyp->GetFineness();
117 aParams.uselocalh = hyp->GetSurfaceCurvature();
118 aParams.merge_solids = hyp->GetFuseEdges();
119 aParams.chordalError = hyp->GetChordalErrorEnabled() ? hyp->GetChordalError() : -1.;
120 aParams.optsteps2d = aParams.optimize ? hyp->GetNbSurfOptSteps() : 0;
121 aParams.optsteps3d = aParams.optimize ? hyp->GetNbVolOptSteps() : 0;
122 aParams.elsizeweight = hyp->GetElemSizeWeight();
123 aParams.opterrpow = hyp->GetWorstElemMeasure();
124 aParams.delaunay = hyp->GetUseDelauney();
125 aParams.checkoverlap = hyp->GetCheckOverlapping();
126 aParams.checkchartboundary = hyp->GetCheckChartBoundary();
129 aParams.meshsizefilename = hyp->GetMeshSizeFile();
132 aParams.meshsizefilename = hyp->GetMeshSizeFile();
135 aParams.closeedgefac = 2;
137 aParams.closeedgefac = 0;
141 // write in a binary file the orientation for each 2D element of the mesh
142 void NETGENPlugin_NETGEN_3D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
143 const TopoDS_Shape& aShape,
144 netgen_params& aParams,
145 const std::string output_file)
147 SMESH_MesherHelper helper(aMesh);
148 NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
149 SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
150 std::map<vtkIdType, bool> elemOrientation;
152 for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
154 const TopoDS_Shape& aShapeFace = exFa.Current();
155 int faceID = aMesh.GetMeshDS()->ShapeToIndex( aShapeFace );
156 bool isInternalFace = internals.isInternalShape( faceID );
158 if ( !isInternalFace &&
159 helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
160 // IsReversedSubMesh() can work wrong on strongly curved faces,
161 // so we use it as less as possible
162 isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
164 const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
165 if ( !aSubMeshDSFace ) continue;
167 SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
168 if ( aParams._quadraticMesh &&
169 dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
171 // add medium nodes of proxy triangles to helper (#16843)
172 while ( iteratorElem->more() )
173 helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
175 iteratorElem = aSubMeshDSFace->GetElements();
177 while ( iteratorElem->more() ) // loop on elements on a geom face
180 const SMDS_MeshElement* elem = iteratorElem->next();
182 error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
183 if ( elem->NbCornerNodes() != 3 )
184 error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
185 elemOrientation[elem->GetID()] = isRev;
186 } // loop on elements on a face
187 } // loop on faces of a SOLID or SHELL
190 std::ofstream df(output_file, ios::out|ios::binary);
191 int size=elemOrientation.size();
193 df.write((char*)&size, sizeof(int));
194 for(auto const& [id, orient]:elemOrientation){
195 df.write((char*)&id, sizeof(vtkIdType));
196 df.write((char*)&orient, sizeof(bool));
202 bool NETGENPlugin_NETGEN_3D_Remote::Compute(SMESH_Mesh& aMesh,
203 const TopoDS_Shape& aShape)
206 SMESH_MeshLocker myLocker(&aMesh);
207 SMESH_Hypothesis::Hypothesis_Status hypStatus;
208 NETGENPlugin_NETGEN_3D::CheckHypothesis(aMesh, aShape, hypStatus);
212 // Temporary folder for run
213 fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
214 fs::create_directories(tmp_folder);
215 // Using MESH2D generated after all triangles where created.
216 fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh2D.med");
217 fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
218 fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
219 fs::path tmp_mesh_file=tmp_folder / fs::path("tmp_mesh.med");
220 // Not used kept for debug
221 //fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
222 fs::path shape_file=tmp_folder / fs::path("shape.brep");
223 fs::path param_file=tmp_folder / fs::path("netgen3d_param.txt");
224 fs::path log_file=tmp_folder / fs::path("run.log");
225 fs::path cmd_file=tmp_folder / fs::path("cmd.log");
226 //TODO: Handle variable mesh_name
227 std::string mesh_name = "MESH";
230 SMESH_MeshLocker myLocker(&aMesh);
232 exportShape(shape_file.string(), aShape);
235 netgen_params aParams;
236 fillParameters(_hypParameters, aParams);
238 exportNetgenParams(param_file.string(), aParams);
240 // Exporting element orientation
241 exportElementOrientation(aMesh, aShape, aParams, element_orientation_file.string());
244 // Calling run_mesher
245 // TODO: check if we need to handle the .exe for windows
247 fs::path run_mesher_exe =
248 fs::path(std::getenv("NETGENPLUGIN_ROOT_DIR"))/
251 fs::path("NETGENPlugin_Runner");
253 cmd = run_mesher_exe.string() +
254 " NETGEN3D " + mesh_file.string() + " "
255 + shape_file.string() + " "
256 + param_file.string() + " "
257 + element_orientation_file.string() + " "
258 + std::to_string(aMesh.GetMesherNbThreads()) + " "
259 + new_element_file.string() + " "
261 // Writing command in log
263 std::ofstream flog(cmd_file.string());
267 MESSAGE("Running command: ");
271 // Building arguments for QProcess
272 QString program = run_mesher_exe.c_str();
273 QStringList arguments;
274 arguments << "NETGEN3D";
275 arguments << mesh_file.c_str();
276 arguments << shape_file.c_str();
277 arguments << param_file.c_str();
278 arguments << element_orientation_file.c_str();
279 arguments << std::to_string(aMesh.GetMesherNbThreads()).c_str();
280 arguments << new_element_file.c_str();
282 QString out_file = log_file.c_str();
284 myProcess.setStandardOutputFile(out_file);
286 myProcess.start(program, arguments);
287 myProcess.waitForFinished();
288 int ret = myProcess.exitStatus();
292 std::string msg = "Issue with command: \n";
293 msg += "See log for more details: " + log_file.string() + "\n";
295 throw SALOME_Exception(msg);
299 SMESH_MeshLocker myLocker(&aMesh);
300 std::ifstream df(new_element_file.string(), ios::binary);
302 int Netgen_NbOfNodes;
303 int Netgen_NbOfNodesNew;
304 int Netgen_NbOfTetra;
305 double Netgen_point[3];
306 int Netgen_tetrahedron[4];
309 SMESH_MesherHelper helper(aMesh);
310 // This function is mandatory for setElementsOnShape to work
311 helper.IsQuadraticSubMesh(aShape);
312 helper.SetElementsOnShape( true );
314 // Number of nodes in intial mesh
315 df.read((char*) &Netgen_NbOfNodes, sizeof(int));
316 // Number of nodes added by netgen
317 df.read((char*) &Netgen_NbOfNodesNew, sizeof(int));
319 // Filling nodevec (correspondence netgen numbering mesh numbering)
320 vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
321 //vector<int> nodeTmpVec ( Netgen_NbOfNodesNew + 1 );
322 SMESHDS_Mesh * meshDS = helper.GetMeshDS();
323 for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
326 df.read((char*) &nodeID, sizeof(int));
327 nodeVec.at(nodeIndex) = meshDS->FindNode(nodeID);
330 // Add new points and update nodeVec
331 for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
333 df.read((char *) &Netgen_point, sizeof(double)*3);
335 nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
341 df.read((char*) &Netgen_NbOfTetra, sizeof(int));
343 for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
345 df.read((char*) &Netgen_tetrahedron, sizeof(int)*4);
347 nodeVec.at( Netgen_tetrahedron[0] ),
348 nodeVec.at( Netgen_tetrahedron[1] ),
349 nodeVec.at( Netgen_tetrahedron[2] ),
350 nodeVec.at( Netgen_tetrahedron[3] ));
358 void NETGENPlugin_NETGEN_3D_Remote::setSubMeshesToCompute(SMESH_subMesh * aSubMesh)
360 SMESH_MeshLocker myLocker(aSubMesh->GetFather());
361 SMESH_Algo::setSubMeshesToCompute(aSubMesh);