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Integration of run_mesher code

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This commit is contained in:
Yoann Audouin 2022-08-31 16:07:16 +02:00
parent 5fae44dd86
commit b7289f8536
6 changed files with 1161 additions and 13 deletions
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25
src/NETGENPlugin/CMakeLists.txt
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@ -63,6 +63,8 @@ SET(_link_LIBRARIES
${KERNEL_SalomeNS}
${KERNEL_SALOMELocalTrace}
${KERNEL_OpUtil}
VTK::CommonCore
VTK::CommonDataModel
SalomeIDLNETGENPLUGIN
)
@ -92,12 +94,8 @@ SET(NETGENEngine_HEADERS
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 ---
@ -125,12 +123,12 @@ SET(NETGENEngine_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 ---
@ -143,13 +141,14 @@ SET(_bin_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)

575
src/NETGENPlugin/netgen_mesher.cxx Normal file
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@ -0,0 +1,575 @@
// 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;
}

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// 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

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src/NETGENPlugin/netgen_param.cxx Normal file
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// 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;
}

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// 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

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// 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;
}