${KERNEL_SalomeNS}
${KERNEL_SALOMELocalTrace}
${KERNEL_OpUtil}
+ VTK::CommonCore
+ VTK::CommonDataModel
SalomeIDLNETGENPLUGIN
)
NETGENPlugin_Remesher_2D.hxx
NETGENPlugin_Defs.hxx
NETGENPlugin_Provider.hxx
-)
-
-SET(Run_Mesher_HEADERS
- DriverStep.hxx
- netgen_param.hxx
- netgen_mesher.hxx
+ netgen_param.hxx
+ netgen_mesher.hxx
)
# --- sources ---
NETGENPlugin_SimpleHypothesis_3D_i.cxx
NETGENPlugin_Remesher_2D.cxx
NETGENPlugin_i.cxx
+ netgen_mesher.cxx
+ netgen_param.cxx
)
SET(Run_Mesher_SOURCES
- DriverStep.cxx
- netgen_mesher.cxx
- netgen_param.cxx
+ run_mesher.cxx
)
# --- scripts ---
# --- rules ---
-ADD_LIBRARY(NETGENEngine ${NETGENEngine_SOURCES} ${Run_Mesher_SOURCES})
+ADD_LIBRARY(NETGENEngine ${NETGENEngine_SOURCES})
TARGET_LINK_LIBRARIES(NETGENEngine ${_link_LIBRARIES} )
INSTALL(TARGETS NETGENEngine EXPORT ${PROJECT_NAME}TargetGroup DESTINATION ${SALOME_INSTALL_LIBS})
-#ADD_EXECUTABLE(run_mesher ${Run_Mesher_SOURCES})
-#INSTALL(TARGETS NETGENEngine EXPORT ${PROJECT_NAME}TargetGroup DESTINATION ${SALOME_INSTALL_BINS})
+ADD_EXECUTABLE(run_mesher ${Run_Mesher_SOURCES})
+TARGET_LINK_LIBRARIES(run_mesher ${_link_LIBRARIES} NETGENEngine )
+INSTALL(TARGETS run_mesher EXPORT ${PROJECT_NAME}TargetGroup DESTINATION ${SALOME_INSTALL_BINS})
-INSTALL(FILES ${Run_Mesher_HEADERS} ${NETGENEngine_HEADERS} DESTINATION ${SALOME_INSTALL_HEADERS})
+INSTALL(FILES ${NETGENEngine_HEADERS} DESTINATION ${SALOME_INSTALL_HEADERS})
SALOME_INSTALL_SCRIPTS("${_bin_SCRIPTS}" ${SALOME_INSTALL_PYTHON}/salome/NETGENPlugin)
--- /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 : netgen_mesher.cxx
+// Author : Yoann AUDOUIN, EDF
+// Module : SMESH
+//
+
+#include "netgen_mesher.hxx"
+
+#include "DriverStep.hxx"
+#include "DriverMesh.hxx"
+#include "netgen_param.hxx"
+
+#include <fstream>
+#include <vector>
+#include <filesystem>
+namespace fs = std::filesystem;
+
+// SMESH include
+#include <SMESH_Mesh.hxx>
+#include <SMESH_Gen.hxx>
+#include <SMESH_Algo.hxx>
+#include <SMESHDS_Mesh.hxx>
+#include <SMESH_ControlsDef.hxx>
+#include <SMESH_Comment.hxx>
+#include <SMESH_ComputeError.hxx>
+#include <SMESH_MesherHelper.hxx>
+#include <StdMeshers_MaxElementVolume.hxx>
+#include <StdMeshers_QuadToTriaAdaptor.hxx>
+#include <StdMeshers_ViscousLayers.hxx>
+
+// NETGENPlugin
+// #include <NETGENPlugin_Mesher.hxx>
+// #include <NETGENPlugin_Hypothesis.hxx>
+#include "NETGENPlugin_Mesher.hxx"
+#include "NETGENPlugin_Hypothesis.hxx"
+
+
+// OCC include
+#include <TopoDS.hxx>
+#include <BRepClass3d_SolidClassifier.hxx>
+#include <GProp_GProps.hxx>
+#include <BRepGProp.hxx>
+
+#include <Standard_Failure.hxx>
+#include <Standard_ErrorHandler.hxx>
+/*
+ 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
+
+ NETGENPLUGIN_DLL_HEADER
+ extern volatile multithreadt multithread;
+
+ NETGENPLUGIN_DLL_HEADER
+ extern bool merge_solids;
+}
+using namespace nglib;
+
+int error(int error_type, std::string msg){
+ std::cerr << msg << std::endl;
+ return error_type;
+};
+
+int error(const SMESH_Comment& comment){
+ return error(1, "SMESH_Comment error: "+comment);
+};
+
+/**
+ * @brief Set the netgen parameters
+ *
+ * @param aParams Internal structure of parameters
+ * @param mparams Netgen strcuture of parameters
+ */
+void set_netgen_parameters(netgen_params& aParams){
+
+ // Default parameters
+#ifdef NETGEN_V6
+
+ netgen::mparam.nthreads = std::thread::hardware_concurrency();
+
+ if ( getenv( "SALOME_NETGEN_DISABLE_MULTITHREADING" ))
+ {
+ netgen::mparam.nthreads = 1;
+ netgen::mparam.parallel_meshing = false;
+ }
+
+#endif
+
+ // Initialize global NETGEN parameters:
+ netgen::mparam.maxh = aParams.maxh;
+ netgen::mparam.minh = aParams.minh;
+ netgen::mparam.segmentsperedge = aParams.segmentsperedge;
+ netgen::mparam.grading = aParams.grading;
+ netgen::mparam.curvaturesafety = aParams.curvaturesafety;
+ netgen::mparam.secondorder = aParams.secondorder;
+ netgen::mparam.quad = aParams.quad;
+ netgen::mparam.uselocalh = aParams.uselocalh;
+ netgen::merge_solids = aParams.merge_solids;
+ netgen::mparam.optsteps2d = aParams.optsteps2d;
+ netgen::mparam.optsteps3d = aParams.optsteps3d;
+ netgen::mparam.elsizeweight = aParams.elsizeweight;
+ netgen::mparam.opterrpow = aParams.opterrpow;
+ netgen::mparam.delaunay = aParams.delaunay;
+ netgen::mparam.checkoverlap = aParams.checkoverlap;
+ netgen::mparam.checkchartboundary = aParams.checkchartboundary;
+#ifdef NETGEN_V6
+ // std::string
+ netgen::mparam.meshsizefilename = aParams.meshsizefilename;
+ netgen::mparam.closeedgefac = aParams.closeedgefac;
+
+#else
+ // const char*
+ netgen::mparam.meshsizefilename= aParams.meshsizefilename ? 0 : aParams.meshsizefilename.c_str();
+#endif
+}
+
+/**
+ * @brief compute mesh with netgen
+ *
+ * @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 netgen3d(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
+ //TODO: make it
+ netgen_params myParams;
+
+ import_netgen_params(hypo_file, myParams);
+
+ 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)
+ export_mesh(output_mesh_file, *myMesh, mesh_name);
+
+ return ret;
+}
+
+/**
+ * @brief Compute aShape within aMesh using netgen
+ *
+ * @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 netgen3d(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 = "Volume meshing";
+
+ SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
+
+ SMESH_MesherHelper helper(aMesh);
+ aParams._quadraticMesh = helper.IsQuadraticSubMesh(aShape);
+ helper.SetElementsOnShape( true );
+
+ int Netgen_NbOfNodes = 0;
+ double Netgen_point[3];
+ int Netgen_triangle[3];
+
+ NETGENPlugin_NetgenLibWrapper ngLib;
+ Ng_Mesh * Netgen_mesh = (Ng_Mesh*)ngLib._ngMesh;
+
+ // vector of nodes in which node index == netgen ID
+ vector< const SMDS_MeshNode* > nodeVec;
+ {
+ const int invalid_ID = -1;
+
+ SMESH::Controls::Area areaControl;
+ SMESH::Controls::TSequenceOfXYZ nodesCoords;
+
+ // maps nodes to ng ID
+ typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
+ typedef TNodeToIDMap::value_type TN2ID;
+ TNodeToIDMap nodeToNetgenID;
+
+ // find internal shapes
+ NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
+
+ // ---------------------------------
+ // Feed the Netgen with surface mesh
+ // ---------------------------------
+
+ TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
+ bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
+
+ SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
+ if ( aParams._viscousLayersHyp )
+ {
+ netgen::multithread.percent = 3;
+ proxyMesh = aParams._viscousLayersHyp->Compute( aMesh, aShape );
+ if ( !proxyMesh )
+ return false;
+ }
+ if ( aMesh.NbQuadrangles() > 0 )
+ {
+ netgen::multithread.percent = 6;
+ StdMeshers_QuadToTriaAdaptor* Adaptor = new StdMeshers_QuadToTriaAdaptor;
+ Adaptor->Compute(aMesh,aShape,proxyMesh.get());
+ proxyMesh.reset( Adaptor );
+ }
+
+ // Get list of elements + their orientation from element_orientation file
+ std::ifstream df(element_orientation_file, ios::binary|ios::in);
+ int nbElement;
+ bool orient;
+
+ // Warning of the use of vtkIdType (I had issue when run_mesher was compiled with internal vtk) and salome not
+ // Sizeof was the same but how he othered the type was different
+ // Maybe using another type (uint64_t) instead would be better
+ vtkIdType id;
+ std::map<vtkIdType, bool> elemOrientation;
+ 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();
+
+ // Adding elements from Mesh
+ SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
+ int nbedge = meshDS->NbEdges();
+ int nbface = meshDS->NbFaces();
+ bool isRev;
+ bool isInternalFace = false;
+
+ bool isIn;
+
+ while ( iteratorElem->more() ) // loop on elements on a geom face
+ {
+ // 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 )
+ return error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
+
+ // Keeping only element that are in the element orientation file
+ isIn = elemOrientation.count(elem->GetID())==1;
+
+ if(!isIn)
+ continue;
+
+
+ // Get orientation
+ // Netgen requires that all the triangle point outside
+ isRev = elemOrientation[elem->GetID()];
+
+ // Add nodes of triangles and triangles them-selves to netgen mesh
+
+ // add three nodes of triangle
+ bool hasDegen = false;
+ for ( int iN = 0; iN < 3; ++iN )
+ {
+ const SMDS_MeshNode* node = elem->GetNode( iN );
+ const int shapeID = node->getshapeId();
+ if ( node->GetPosition()->GetTypeOfPosition() == SMDS_TOP_EDGE &&
+ helper.IsDegenShape( shapeID ))
+ {
+ // ignore all nodes on degeneraged edge and use node on its vertex instead
+ TopoDS_Shape vertex = TopoDS_Iterator( meshDS->IndexToShape( shapeID )).Value();
+ node = SMESH_Algo::VertexNode( TopoDS::Vertex( vertex ), meshDS );
+ hasDegen = true;
+ }
+ 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();
+ Ng_AddPoint(Netgen_mesh, Netgen_point);
+ }
+
+ Netgen_triangle[ isRev ? 2-iN : iN ] = ngID;
+ }
+ // add triangle
+ if ( hasDegen && (Netgen_triangle[0] == Netgen_triangle[1] ||
+ Netgen_triangle[0] == Netgen_triangle[2] ||
+ Netgen_triangle[2] == Netgen_triangle[1] ))
+ continue;
+
+ Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
+
+ // TODO: Handle that case (quadrangle 2D) (isInternal is set to false)
+ if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
+ {
+ swap( Netgen_triangle[1], Netgen_triangle[2] );
+ Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
+ }
+ }
+
+ // 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();
+
+ // TODO: Handle internal vertex
+ //if ( internals.hasInternalVertexInSolid() )
+ //{
+ // netgen::OCCGeometry occgeo;
+ // NETGENPlugin_Mesher::AddIntVerticesInSolids( occgeo,
+ // (netgen::Mesh&) *Netgen_mesh,
+ // nodeVec,
+ // internals);
+ //}
+ }
+
+ // -------------------------
+ // Generate the volume mesh
+ // -------------------------
+ netgen::multithread.terminate = 0;
+
+ netgen::Mesh* ngMesh = ngLib._ngMesh;
+ Netgen_mesh = ngLib.ngMesh();
+ Netgen_NbOfNodes = Ng_GetNP( Netgen_mesh );
+
+
+ int startWith = netgen::MESHCONST_MESHVOLUME;
+ int endWith = netgen::MESHCONST_OPTVOLUME;
+ int err = 1;
+
+ NETGENPlugin_Mesher aMesher( &aMesh, helper.GetSubShape(), /*isVolume=*/true );
+ netgen::OCCGeometry occgeo;
+ set_netgen_parameters(aParams);
+
+ if ( aParams.has_netgen_param )
+ {
+ if ( aParams.has_local_size)
+ {
+ if ( ! &ngMesh->LocalHFunction() )
+ {
+ netgen::Point3d pmin, pmax;
+ ngMesh->GetBox( pmin, pmax, 0 );
+ ngMesh->SetLocalH( pmin, pmax, aParams.grading );
+ }
+ aMesher.SetLocalSize( occgeo, *ngMesh );
+
+ try {
+ ngMesh->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
+ } catch (netgen::NgException & ex) {
+ return error( COMPERR_BAD_PARMETERS, ex.What() );
+ }
+ }
+ if ( !aParams.optimize )
+ endWith = netgen::MESHCONST_MESHVOLUME;
+ }
+ else if ( aParams.has_maxelementvolume_hyp )
+ {
+ netgen::mparam.maxh = pow( 72, 1/6. ) * pow( aParams.maxElementVolume, 1/3. );
+ // limitVolumeSize( ngMesh, netgen::mparam.maxh ); // result is unpredictable
+ }
+ else if ( aMesh.HasShapeToMesh() )
+ {
+ aMesher.PrepareOCCgeometry( occgeo, helper.GetSubShape(), aMesh );
+ netgen::mparam.maxh = occgeo.GetBoundingBox().Diam()/2;
+ }
+ else
+ {
+ netgen::Point3d pmin, pmax;
+ ngMesh->GetBox (pmin, pmax);
+ netgen::mparam.maxh = Dist(pmin, pmax)/2;
+ }
+
+ if ( !aParams.has_netgen_param && aMesh.HasShapeToMesh() )
+ {
+ netgen::mparam.minh = aMesher.GetDefaultMinSize( helper.GetSubShape(), netgen::mparam.maxh );
+ }
+
+ try
+ {
+ OCC_CATCH_SIGNALS;
+
+ ngLib.CalcLocalH(ngMesh);
+ err = ngLib.GenerateMesh(occgeo, startWith, endWith, ngMesh, netgen::mparam);
+
+ if(netgen::multithread.terminate)
+ return false;
+ if ( err )
+ return error(SMESH_Comment("Error in netgen::OCCGenerateMesh() at ") << netgen::multithread.task);
+ }
+ catch (Standard_Failure& ex)
+ {
+ SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
+ str << " at " << netgen::multithread.task
+ << ": " << ex.DynamicType()->Name();
+ if ( ex.GetMessageString() && strlen( ex.GetMessageString() ))
+ str << ": " << ex.GetMessageString();
+ return error(str);
+ }
+ catch (netgen::NgException& exc)
+ {
+ SMESH_Comment str("NgException");
+ if ( strlen( netgen::multithread.task ) > 0 )
+ str << " at " << netgen::multithread.task;
+ str << ": " << exc.What();
+ return error(str);
+ }
+ catch (...)
+ {
+ SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
+ if ( strlen( netgen::multithread.task ) > 0 )
+ str << " at " << netgen::multithread.task;
+ return error(str);
+ }
+
+ int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
+ int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
+
+ // -------------------------------------------------------------------
+ // Feed back the SMESHDS with the generated Nodes and Volume Elements
+ // -------------------------------------------------------------------
+
+ if ( err )
+ {
+ SMESH_ComputeErrorPtr ce = NETGENPlugin_Mesher::ReadErrors(nodeVec);
+ if ( ce && ce->HasBadElems() )
+ return error( ce );
+ }
+
+ bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
+ if ( isOK )
+ {
+ std::ofstream df(new_element_file, ios::out|ios::binary);
+
+ double Netgen_point[3];
+ int Netgen_tetrahedron[4];
+
+ // Writing nodevec (correspondance netgen numbering mesh numbering)
+ // Number of nodes
+ df.write((char*) &Netgen_NbOfNodes, sizeof(int));
+ df.write((char*) &Netgen_NbOfNodesNew, sizeof(int));
+ for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
+ {
+ //Id of the point
+ int id = nodeVec.at(nodeIndex)->GetID();
+ df.write((char*) &id, sizeof(int));
+ }
+
+ // Writing info on new points
+ for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
+ {
+ Ng_GetPoint(Netgen_mesh, nodeIndex, Netgen_point );
+ // Coordinates of the point
+ df.write((char *) &Netgen_point, sizeof(double)*3);
+ }
+
+ // create tetrahedrons
+ df.write((char*) &Netgen_NbOfTetra, sizeof(int));
+ for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
+ {
+ Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
+ df.write((char*) &Netgen_tetrahedron, sizeof(int)*4);
+ }
+ df.close();
+ }
+
+ // Adding new files in aMesh as well
+ if ( output_mesh )
+ {
+ double Netgen_point[3];
+ int Netgen_tetrahedron[4];
+
+ // create and insert new nodes into nodeVec
+ nodeVec.resize( Netgen_NbOfNodesNew + 1, 0 );
+ int nodeIndex = Netgen_NbOfNodes + 1;
+ for ( ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
+ {
+ Ng_GetPoint( Netgen_mesh, nodeIndex, Netgen_point );
+ nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
+ Netgen_point[1],
+ Netgen_point[2]);
+ }
+
+ // create tetrahedrons
+ for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
+ {
+ Ng_GetVolumeElement(Netgen_mesh, elemIndex, Netgen_tetrahedron);
+ try
+ {
+ helper.AddVolume (nodeVec.at( Netgen_tetrahedron[0] ),
+ nodeVec.at( Netgen_tetrahedron[1] ),
+ nodeVec.at( Netgen_tetrahedron[2] ),
+ nodeVec.at( Netgen_tetrahedron[3] ));
+ }
+ catch (...)
+ {
+ }
+ }
+ }
+
+ return !err;
+}
\ No newline at end of file
--- /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 : netgen_mesher.hxx
+// Author : Yoann AUDOUIN, EDF
+// Module : SMESH
+//
+
+#ifndef _NETGEN_MESHER_HXX_
+#define _NETGEN_MESHER_HXX_
+
+#include <string>
+#include <iostream>
+
+class TopoDS_Shape;
+class SMESH_Mesh;
+class SMESH_Comment;
+class netgen_params;
+
+int netgen3d(TopoDS_Shape &aShape,
+ SMESH_Mesh& aMesh,
+ netgen_params& aParams,
+ std::string new_element_file,
+ std::string element_orientation_file,
+ bool output_mesh);
+int netgen3d(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);
+
+//TODO: Tmp function replace by real error handling
+int error(int error_type, std::string msg);
+int error(const SMESH_Comment& comment);
+
+#endif
\ No newline at end of file
--- /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 : netgen_param.hxx
+// Author : Yoann AUDOUIN, EDF
+// Module : SMESH
+//
+#include "netgen_param.hxx"
+
+#include <iostream>
+#include <fstream>
+#include <string>
+#include <cassert>
+
+/**
+ * @brief Print content of a netgen_params
+ *
+ * @param aParams The object to display
+ */
+void print_netgen_params(netgen_params& aParams){
+ 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 << "segmentsperedge: " << aParams.segmentsperedge << std::endl;
+ std::cout << "grading: " << aParams.grading << std::endl;
+ std::cout << "curvaturesafety: " << aParams.curvaturesafety << std::endl;
+ std::cout << "secondorder: " << aParams.secondorder << std::endl;
+ std::cout << "quad: " << aParams.quad << std::endl;
+ std::cout << "optimize: " << aParams.optimize << std::endl;
+ std::cout << "fineness: " << aParams.fineness << std::endl;
+ std::cout << "uselocalh: " << aParams.uselocalh << std::endl;
+ std::cout << "merge_solids: " << aParams.merge_solids << std::endl;
+ std::cout << "chordalError: " << aParams.chordalError << std::endl;
+ std::cout << "optsteps2d: " << aParams.optsteps2d << std::endl;
+ std::cout << "optsteps3d: " << aParams.optsteps3d << std::endl;
+ std::cout << "elsizeweight: " << aParams.elsizeweight << std::endl;
+ std::cout << "opterrpow: " << aParams.opterrpow << 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 << "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;
+}
+
+/**
+ * @brief Import a param_file into a netgen_params structure
+ *
+ * @param param_file Name of the file
+ * @param aParams Structure to fill
+ */
+void import_netgen_params(const std::string param_file, netgen_params& aParams){
+ std::ifstream myfile(param_file);
+ std::string line;
+
+ std::getline(myfile, line);
+ aParams.has_netgen_param = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.maxh = std::stod(line);
+ std::getline(myfile, line);
+ aParams.minh = std::stod(line);
+ std::getline(myfile, line);
+ aParams.segmentsperedge = std::stod(line);
+ std::getline(myfile, line);
+ aParams.grading = std::stod(line);
+ std::getline(myfile, line);
+ aParams.curvaturesafety = std::stod(line);
+ std::getline(myfile, line);
+ aParams.secondorder = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.quad = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.optimize = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.fineness = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.uselocalh = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.merge_solids = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.chordalError = std::stod(line);
+ std::getline(myfile, line);
+ aParams.optsteps2d = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.optsteps3d = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.elsizeweight = std::stod(line);
+ std::getline(myfile, line);
+ aParams.opterrpow = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.delaunay = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.checkoverlap = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.checkchartboundary = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.closeedgefac = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.has_local_size = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.meshsizefilename = line;
+ std::getline(myfile, line);
+ aParams.has_maxelementvolume_hyp = std::stoi(line);
+ std::getline(myfile, line);
+ aParams.maxElementVolume = std::stod(line);
+
+ myfile.close();
+};
+
+/**
+ * @brief Writes the content of a netgen_param into a file
+ *
+ * @param param_file the file
+ * @param aParams the object
+ */
+void export_netgen_params(const std::string param_file, netgen_params& aParams){
+ std::ofstream myfile(param_file);
+ myfile << aParams.has_netgen_param << std::endl;
+ myfile << aParams.maxh << std::endl;
+ myfile << aParams.minh << std::endl;
+ myfile << aParams.segmentsperedge << std::endl;
+ myfile << aParams.grading << std::endl;
+ myfile << aParams.curvaturesafety << std::endl;
+ myfile << aParams.secondorder << std::endl;
+ myfile << aParams.quad << std::endl;
+ myfile << aParams.optimize << std::endl;
+ myfile << aParams.fineness << std::endl;
+ myfile << aParams.uselocalh << std::endl;
+ myfile << aParams.merge_solids << std::endl;
+ myfile << aParams.chordalError << std::endl;
+ myfile << aParams.optsteps2d << std::endl;
+ myfile << aParams.optsteps3d << std::endl;
+ myfile << aParams.elsizeweight << std::endl;
+ myfile << aParams.opterrpow << std::endl;
+ myfile << aParams.delaunay << std::endl;
+ myfile << aParams.checkoverlap << std::endl;
+ myfile << aParams.checkchartboundary << std::endl;
+ myfile << aParams.closeedgefac << std::endl;
+ myfile << aParams.has_local_size << std::endl;
+ myfile << aParams.meshsizefilename << std::endl;
+ myfile << aParams.has_maxelementvolume_hyp << std::endl;
+ myfile << aParams.maxElementVolume << std::endl;
+
+ myfile.close();
+};
+
+/**
+ * @brief Compares two netgen_parms object
+ *
+ * @param params1 Object 1
+ * @param params2 Object 2
+
+ * @return true if the two object are identical
+ */
+bool diff_netgen_params(netgen_params params1, netgen_params params2){
+ bool ret = true;
+ ret &= params1.maxh == params2.maxh;
+ ret &= params1.minh == params2.minh;
+ ret &= params1.segmentsperedge == params2.segmentsperedge;
+ ret &= params1.grading == params2.grading;
+ ret &= params1.curvaturesafety == params2.curvaturesafety;
+ ret &= params1.secondorder == params2.secondorder;
+ ret &= params1.quad == params2.quad;
+ ret &= params1.optimize == params2.optimize;
+ ret &= params1.fineness == params2.fineness;
+ ret &= params1.uselocalh == params2.uselocalh;
+ ret &= params1.merge_solids == params2.merge_solids;
+ ret &= params1.chordalError == params2.chordalError;
+ ret &= params1.optsteps2d == params2.optsteps2d;
+ ret &= params1.optsteps3d == params2.optsteps3d;
+ ret &= params1.elsizeweight == params2.elsizeweight;
+ ret &= params1.opterrpow == params2.opterrpow;
+ ret &= params1.delaunay == params2.delaunay;
+ ret &= params1.checkoverlap == params2.checkoverlap;
+ ret &= params1.checkchartboundary == params2.checkchartboundary;
+ ret &= params1.closeedgefac == params2.closeedgefac;
+ ret &= params1.has_local_size == params2.has_local_size;
+ ret &= params1.meshsizefilename == params2.meshsizefilename;
+ ret &= params1.has_maxelementvolume_hyp == params2.has_maxelementvolume_hyp;
+ ret &= params1.maxElementVolume == params2.maxElementVolume;
+
+ return ret;
+}
--- /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 : netgen_param.hxx
+// Author : Yoann AUDOUIN, EDF
+// Module : SMESH
+//
+
+#ifndef _NETGEN_PARAM_HXX_
+#define _NETGEN_PARAM_HXX_
+
+#include <string>
+
+class NETGENPlugin_Hypothesis;
+class StdMeshers_MaxElementVolume;
+class StdMeshers_ViscousLayers;
+
+struct netgen_params{
+ // Params from NETGENPlugin_Mesher
+ // True if _hypParameters is not null
+ bool has_netgen_param=true;
+ double maxh;
+ double minh;
+ double segmentsperedge;
+ double grading;
+ double curvaturesafety;
+ int secondorder;
+ int quad;
+ bool optimize;
+ int fineness;
+ bool uselocalh;
+ bool merge_solids;
+ double chordalError;
+ int optsteps2d;
+ int optsteps3d;
+ double elsizeweight;
+ int opterrpow;
+ bool delaunay;
+ bool checkoverlap;
+ bool checkchartboundary;
+ int closeedgefac;
+
+
+ // TODO: add localsize (pass through local size file ?)
+ // True if we have a mesh size file or local size info
+ bool has_local_size = false;
+ std::string meshsizefilename;
+
+ // Params from NETGEN3D
+ // True if _hypMaxElementVolume is not null
+ bool has_maxelementvolume_hyp=false;
+ double maxElementVolume=0.0;
+
+ // to replace
+ //NETGENPlugin_Hypothesis * _hypParameters=nullptr;
+ // to remove ?
+ StdMeshers_MaxElementVolume* _hypMaxElementVolume=nullptr;
+ // to remove ?
+ StdMeshers_ViscousLayers* _viscousLayersHyp=nullptr;
+ //double _progressByTic;
+ bool _quadraticMesh=false;
+};
+
+void print_netgen_params(netgen_params& aParams);
+
+void import_netgen_params(const std::string param_file, netgen_params& aParams);
+void export_netgen_params(const std::string param_file, netgen_params& aParams);
+
+bool diff_netgen_params(netgen_params params1, netgen_params params2);
+
+#endif
\ No newline at end of file
--- /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 : run_mesher.cxx
+// Author : Yoann AUDOUIN, EDF
+// Module : SMESH
+//
+
+#include "DriverStep.hxx"
+#include "DriverMesh.hxx"
+#include "netgen_param.hxx"
+#include "netgen_mesher.hxx"
+
+#include <SMESH_Mesh.hxx>
+#include <SMESH_Gen.hxx>
+
+#include <TopoDS_Shape.hxx>
+#include <iostream>
+
+/**
+ * @brief Test of shape Import/Export
+ *
+ * @param shape_file
+ */
+void test_shape(){
+
+ std::cout << "Testing Shape Import/Export" << std::endl;
+ std::string shape_file = "box.step";
+
+ TopoDS_Shape myShape;
+
+ // Test 1 import -> export cmp files
+ std::string shape_file2 = "/tmp/shape.step";
+
+ import_shape(shape_file, myShape);
+ export_shape(shape_file2, myShape);
+
+ assert(diff_step_file(shape_file, shape_file2));
+
+ // Test 2 import->export->import cmp TopoDS_Shape
+ std::string shape_file3 = "/tmp/shape2.step";
+ TopoDS_Shape myShape1, myShape2;
+
+ import_shape(shape_file, myShape1);
+
+ export_shape(shape_file3, myShape1);
+
+ import_shape(shape_file3, myShape2);
+
+ // TODO: See why this does not work
+ // TShape seems to be different
+ //assert(myShape1.IsSame(myShape2));
+
+}
+
+/**
+ * @brief test of mesh import/export
+ *
+ * @param mesh_file
+ */
+void test_mesh(){
+
+ std::cout << "Testing Mesh Import/Export" << std::endl;
+ std::string mesh_file = "box.med";
+ SMESH_Gen gen;
+
+ SMESH_Mesh *myMesh = gen.CreateMesh(false);
+ std::string mesh_name = "Maillage_1";
+
+ // Test 1 import -> export cmp files
+ std::string mesh_file2 = "/tmp/mesh.med";
+
+ import_mesh(mesh_file, *myMesh, mesh_name);
+ export_mesh(mesh_file2, *myMesh, mesh_name);
+
+ assert(diff_med_file(mesh_file, mesh_file2, mesh_name));
+
+ // TODO: Compare the two med files via dump ?
+
+ // Test 2 import->export->import cmp TopoDS_Shape
+ std::string mesh_file3 = "/tmp/mesh2.med";
+ SMESH_Mesh *myMesh1 = gen.CreateMesh(false);
+ SMESH_Mesh *myMesh2 = gen.CreateMesh(false);
+
+ import_mesh(mesh_file, *myMesh1, mesh_name);
+
+ export_mesh(mesh_file3, *myMesh1, mesh_name);
+
+ import_mesh(mesh_file3, *myMesh2, mesh_name);
+
+ // TODO: Compare SMESH_Mesh
+ //assert(myMesh1==myMesh2);
+}
+
+/**
+ * @brief Test of import/export of netgen param
+ *
+ */
+void test_netgen_params(){
+
+ std::string param_file = "/tmp/netgen_param.txt";
+ netgen_params myParams, myParams2;
+ myParams.has_netgen_param = true;
+ myParams.maxh = 34.64;
+ myParams.minh = 0.14;
+ myParams.segmentsperedge = 15;
+ myParams.grading = 0.2;
+ myParams.curvaturesafety = 1.5;
+ myParams.secondorder = false;
+ myParams.quad = false;
+ myParams.optimize = true;
+ myParams.fineness = 5;
+ myParams.uselocalh = true;
+ myParams.merge_solids = true;
+ myParams.chordalError = -1;
+ myParams.optsteps2d = 3;
+ myParams.optsteps3d = 3;
+ myParams.elsizeweight = 0.2;
+ myParams.opterrpow = 2;
+ myParams.delaunay = true;
+ myParams.checkoverlap = true;
+ myParams.checkchartboundary = false;
+ myParams.closeedgefac = 2;
+ myParams.has_local_size = false;
+ myParams.meshsizefilename = "";
+ myParams.has_maxelementvolume_hyp = false;
+ myParams.maxElementVolume = 0.0;
+
+ export_netgen_params(param_file, myParams);
+ import_netgen_params(param_file, myParams2);
+
+ assert(diff_netgen_params(myParams, myParams2));
+
+};
+
+void test_netgen3d(){
+
+ std::cout << "Testing NETGEN 3D mesher" << std::endl;
+ netgen3d("box_partial2D1D-2.med",
+ "box-2.step",
+ "box_param.txt",
+ "element_orient.dat",
+ "new_element.dat",
+ true,
+ "box_with3D.med");
+
+ // TODO: Check result
+}
+
+/**
+ * @brief Main function
+ *
+ * @param argc Number of arguments
+ * @param argv Arguments
+ *
+ * @return error code
+ */
+int main(int argc, char *argv[]){
+
+ if(argc!=9||(argc==2 && (argv[1] == "-h" || argv[1]=="--help"))){
+ std::cout << "Error in number of argument"<<std::endl;
+ std::cout << "Syntax:"<<std::endl;
+ std::cout << "run_mesher MESHER INPUT_MESH_FILE SHAPE_FILE HYPO_FILE" << std::endl;
+ 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 << " 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;
+ std::cout << " ELEM_ORIENT_FILE: binary file containing the list of element from INPUT_MESH_FILE associated to the shape and their orientation" << std::endl;
+ std::cout << " NEW_ELEMENT_FILE: (out) contains elements and nodes added by the meshing" << std::endl;
+ std::cout << " OUTPUT_MESH: If !=0 will export mesh into OUTPUT_MESH_FILE " << std::endl;
+ std::cout << " OUTPUT_MESH_FILE: MED File containing the mesh after the run of the mesher" << std::endl;
+ return 0;
+ }
+ std::string mesher=argv[1];
+ std::string input_mesh_file=argv[2];
+ std::string shape_file=argv[3];
+ std::string hypo_file=argv[4];
+ std::string element_orientation_file=argv[5];
+ std::string new_element_file=argv[6];
+ bool output_mesh = std::stoi(argv[7]) != 0;
+ std::string output_mesh_file=argv[8];
+
+ if (mesher=="test"){
+ std::cout << "Running tests" << std::endl;
+ test_shape();
+ test_mesh();
+ test_netgen_params();
+ test_netgen3d();
+ } else if (mesher=="NETGEN3D"){
+ netgen3d(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;
+ }
+ return 0;
+}
