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>
53 namespace fs = std::filesystem;
55 #include <boost/filesystem.hpp>
56 namespace fs = boost::filesystem;
66 #include <occgeom.hpp>
69 #include <ngexception.hpp>
72 #include <core/exception.hpp>
80 NETGENPLUGIN_DLL_HEADER
81 extern MeshingParameters mparam;
83 NETGENPLUGIN_DLL_HEADER
84 extern volatile multithreadt multithread;
86 using namespace nglib;
88 //=============================================================================
92 //=============================================================================
94 NETGENPlugin_NETGEN_3D_Remote::NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen * gen)
95 : NETGENPlugin_NETGEN_3D(hypId, gen)
97 _name = "NETGEN_3D_Remote";
100 //=============================================================================
104 //=============================================================================
106 NETGENPlugin_NETGEN_3D_Remote::~NETGENPlugin_NETGEN_3D_Remote()
111 * @brief Fill the structure netgen_param with the information from the hypothesis
113 * @param hyp the hypothesis
114 * @param aParams the netgen_param structure
116 void NETGENPlugin_NETGEN_3D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
118 aParams.maxh = hyp->GetMaxSize();
119 aParams.minh = hyp->GetMinSize();
120 aParams.segmentsperedge = hyp->GetNbSegPerEdge();
121 aParams.grading = hyp->GetGrowthRate();
122 aParams.curvaturesafety = hyp->GetNbSegPerRadius();
123 aParams.secondorder = hyp->GetSecondOrder() ? 1 : 0;
124 aParams.quad = hyp->GetQuadAllowed() ? 1 : 0;
125 aParams.optimize = hyp->GetOptimize();
126 aParams.fineness = hyp->GetFineness();
127 aParams.uselocalh = hyp->GetSurfaceCurvature();
128 aParams.merge_solids = hyp->GetFuseEdges();
129 aParams.chordalError = hyp->GetChordalErrorEnabled() ? hyp->GetChordalError() : -1.;
130 aParams.optsteps2d = aParams.optimize ? hyp->GetNbSurfOptSteps() : 0;
131 aParams.optsteps3d = aParams.optimize ? hyp->GetNbVolOptSteps() : 0;
132 aParams.elsizeweight = hyp->GetElemSizeWeight();
133 aParams.opterrpow = hyp->GetWorstElemMeasure();
134 aParams.delaunay = hyp->GetUseDelauney();
135 aParams.checkoverlap = hyp->GetCheckOverlapping();
136 aParams.checkchartboundary = hyp->GetCheckChartBoundary();
139 aParams.meshsizefilename = hyp->GetMeshSizeFile();
140 aParams.closeedgefac = 2;
141 aParams.nbThreads = hyp->GetNbThreads();
144 aParams.meshsizefilename = hyp->GetMeshSizeFile();
145 aParams.closeedgefac = 0;
152 * @brief write in a binary file the orientation for each surface element of the mesh
154 * @param aMesh The mesh
155 * @param aShape the shape associated to the mesh
156 * @param output_file name of the binary file
158 void NETGENPlugin_NETGEN_3D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
159 const TopoDS_Shape& aShape,
160 const std::string output_file)
162 SMESH_MesherHelper helper(aMesh);
163 NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
164 SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
165 std::map<vtkIdType, bool> elemOrientation;
167 for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
169 const TopoDS_Shape& aShapeFace = exFa.Current();
170 int faceID = aMesh.GetMeshDS()->ShapeToIndex( aShapeFace );
171 bool isInternalFace = internals.isInternalShape( faceID );
173 if ( !isInternalFace &&
174 helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
175 // IsReversedSubMesh() can work wrong on strongly curved faces,
176 // so we use it as less as possible
177 isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
179 const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
180 if ( !aSubMeshDSFace ) continue;
182 SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
183 if ( _quadraticMesh &&
184 dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
186 // add medium nodes of proxy triangles to helper (#16843)
187 while ( iteratorElem->more() )
188 helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
190 iteratorElem = aSubMeshDSFace->GetElements();
192 while ( iteratorElem->more() ) // loop on elements on a geom face
195 const SMDS_MeshElement* elem = iteratorElem->next();
197 error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
198 if ( elem->NbCornerNodes() != 3 )
199 error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
200 elemOrientation[elem->GetID()] = isRev;
201 } // loop on elements on a face
202 } // loop on faces of a SOLID or SHELL
205 std::ofstream df(output_file, ios::out|ios::binary);
206 int size=elemOrientation.size();
208 df.write((char*)&size, sizeof(int));
209 for(auto const& [id, orient]:elemOrientation){
210 df.write((char*)&id, sizeof(vtkIdType));
211 df.write((char*)&orient, sizeof(bool));
217 * @brief Compute mesh associate to shape
219 * @param aMesh The mesh
220 * @param aShape The shape
221 * @return true fi there are some error
223 bool NETGENPlugin_NETGEN_3D_Remote::Compute(SMESH_Mesh& aMesh,
224 const TopoDS_Shape& aShape)
227 SMESH_MeshLocker myLocker(&aMesh);
228 SMESH_Hypothesis::Hypothesis_Status hypStatus;
229 NETGENPlugin_NETGEN_3D::CheckHypothesis(aMesh, aShape, hypStatus);
233 // Temporary folder for run
235 fs::path tmp_folder = aMesh.tmp_folder / fs::path("Volume-%%%%-%%%%");
237 fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
239 fs::create_directories(tmp_folder);
240 // Using MESH2D generated after all triangles where created.
241 fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh2D.med");
242 fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
243 fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
244 fs::path tmp_mesh_file=tmp_folder / fs::path("tmp_mesh.med");
245 // Not used kept for debug
246 //fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
247 fs::path shape_file=tmp_folder / fs::path("shape.brep");
248 fs::path param_file=tmp_folder / fs::path("netgen3d_param.txt");
249 fs::path log_file=tmp_folder / fs::path("run.log");
250 fs::path cmd_file=tmp_folder / fs::path("cmd.log");
251 std::string mesh_name = "MESH";
254 SMESH_MeshLocker myLocker(&aMesh);
256 SMESH_DriverShape::exportShape(shape_file.string(), aShape);
259 netgen_params aParams;
260 fillParameters(_hypParameters, aParams);
262 exportNetgenParams(param_file.string(), aParams);
264 // Exporting element orientation
265 exportElementOrientation(aMesh, aShape, element_orientation_file.string());
268 // Calling run_mesher
270 fs::path run_mesher_exe =
271 fs::path(std::getenv("NETGENPLUGIN_ROOT_DIR"))/
275 fs::path("NETGENPlugin_Runner.exe");
277 fs::path("NETGENPlugin_Runner");
280 cmd = run_mesher_exe.string() +
281 " NETGEN3D " + mesh_file.string() + " "
282 + shape_file.string() + " "
283 + param_file.string() + " "
284 + element_orientation_file.string() + " "
285 + new_element_file.string() + " "
287 // Writing command in log
289 std::ofstream flog(cmd_file.string());
293 MESSAGE("Running command: ");
297 // Building arguments for QProcess
298 QString program = run_mesher_exe.string().c_str();
299 QStringList arguments;
300 arguments << "NETGEN3D";
301 arguments << mesh_file.string().c_str();
302 arguments << shape_file.string().c_str();
303 arguments << param_file.string().c_str();
304 arguments << element_orientation_file.string().c_str();
305 arguments << new_element_file.string().c_str();
307 QString out_file = log_file.string().c_str();
309 myProcess.setStandardOutputFile(out_file);
311 myProcess.start(program, arguments);
312 // Waiting for process to finish (argument -1 make it wait until the end of
313 // the process otherwise it just waits 30 seconds)
314 myProcess.waitForFinished(-1);
315 int ret = myProcess.exitStatus();
319 std::string msg = "Issue with command: \n";
320 msg += "See log for more details: " + log_file.string() + "\n";
322 throw SALOME_Exception(msg);
326 SMESH_MeshLocker myLocker(&aMesh);
327 std::ifstream df(new_element_file.string(), ios::binary);
329 int Netgen_NbOfNodes;
330 int Netgen_NbOfNodesNew;
331 int Netgen_NbOfTetra;
332 double Netgen_point[3];
333 int Netgen_tetrahedron[4];
336 SMESH_MesherHelper helper(aMesh);
337 // This function is mandatory for setElementsOnShape to work
338 helper.IsQuadraticSubMesh(aShape);
339 helper.SetElementsOnShape( true );
341 // Number of nodes in intial mesh
342 df.read((char*) &Netgen_NbOfNodes, sizeof(int));
343 // Number of nodes added by netgen
344 df.read((char*) &Netgen_NbOfNodesNew, sizeof(int));
346 // Filling nodevec (correspondence netgen numbering mesh numbering)
347 vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
348 //vector<int> nodeTmpVec ( Netgen_NbOfNodesNew + 1 );
349 SMESHDS_Mesh * meshDS = helper.GetMeshDS();
350 for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
353 df.read((char*) &nodeID, sizeof(int));
354 nodeVec.at(nodeIndex) = meshDS->FindNode(nodeID);
357 // Add new points and update nodeVec
358 for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
360 df.read((char *) &Netgen_point, sizeof(double)*3);
362 nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
368 df.read((char*) &Netgen_NbOfTetra, sizeof(int));
370 for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
372 df.read((char*) &Netgen_tetrahedron, sizeof(int)*4);
374 nodeVec.at( Netgen_tetrahedron[0] ),
375 nodeVec.at( Netgen_tetrahedron[1] ),
376 nodeVec.at( Netgen_tetrahedron[2] ),
377 nodeVec.at( Netgen_tetrahedron[3] ));
385 * @brief Assign submeshes to compute
387 * @param aSubMesh submesh to add
389 void NETGENPlugin_NETGEN_3D_Remote::setSubMeshesToCompute(SMESH_subMesh * aSubMesh)
391 SMESH_MeshLocker myLocker(aSubMesh->GetFather());
392 SMESH_Algo::setSubMeshesToCompute(aSubMesh);