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Adding parallel meshing

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This commit is contained in:
Yoann Audouin 2022-10-21 15:03:58 +02:00
parent 638fecd6a5
commit ccde3874e2
22 changed files with 2085 additions and 261 deletions
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14
idl/NETGENPlugin_Algorithm.idl
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@ -44,6 +44,13 @@ module NETGENPlugin
{
};
/*!
* NETGENPlugin_NETGEN_3D: interface of "Remote Tetrahedron (Netgen)" algorithm
*/
interface NETGENPlugin_NETGEN_3D_Remote : NETGENPlugin::NETGENPlugin_NETGEN_3D
{
};
/*!
* NETGENPlugin_NETGEN_2D: interface of "Netgen 1D-2D" algorithm
*/
@ -111,10 +118,10 @@ module NETGENPlugin
void SetQuadAllowed(in boolean value);
boolean GetQuadAllowed();
void SetUseSurfaceCurvature(in boolean value);
boolean GetUseSurfaceCurvature();
void SetFuseEdges(in boolean value);
boolean GetFuseEdges();
@ -140,6 +147,9 @@ module NETGENPlugin
void SetWorstElemMeasure(in short val );
short GetWorstElemMeasure();
void SetNbThreads(in short val );
short GetNbThreads();
void SetUseDelauney(in boolean toUse);
boolean GetUseDelauney();

63
src/NETGENPlugin/CMakeLists.txt
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@ -17,9 +17,12 @@
# See http://www.salome-platform.org/ or email : webmaster.salome@opencascade.com
#
INCLUDE(UseQtExt)
# --- options ---
# additional include directories
INCLUDE_DIRECTORIES(
${QT_INCLUDES}
${KERNEL_INCLUDE_DIRS}
${GUI_INCLUDE_DIRS}
${GEOM_INCLUDE_DIRS}
@ -34,7 +37,8 @@ INCLUDE_DIRECTORIES(
)
# additional preprocessor / compiler flags
ADD_DEFINITIONS(
ADD_DEFINITIONS(
${QT_DEFINITIONS}
${OMNIORB_DEFINITIONS}
${OpenCASCADE_DEFINITIONS}
${BOOST_DEFINITIONS}
@ -63,34 +67,41 @@ SET(_link_LIBRARIES
${KERNEL_SalomeNS}
${KERNEL_SALOMELocalTrace}
${KERNEL_OpUtil}
VTK::CommonCore
VTK::CommonDataModel
SalomeIDLNETGENPLUGIN
Qt5::Core
)
# --- headers ---
# header files
SET(NETGENEngine_HEADERS
NETGENPlugin_NETGEN_3D.hxx
NETGENPlugin_NETGEN_3D_i.hxx
NETGENPlugin_NETGEN_2D.hxx
NETGENPlugin_NETGEN_2D_i.hxx
NETGENPlugin_NETGEN_2D3D.hxx
NETGENPlugin_NETGEN_2D3D_i.hxx
NETGENPlugin_NETGEN_2D_ONLY.hxx
NETGENPlugin_NETGEN_2D_ONLY_i.hxx
NETGENPlugin_Hypothesis.hxx
NETGENPlugin_Hypothesis_i.hxx
NETGENPlugin_Hypothesis_2D.hxx
NETGENPlugin_Hypothesis_2D_i.hxx
NETGENPlugin_Hypothesis_3D_i.hxx
NETGENPlugin_Hypothesis_2D_ONLY_i.hxx
NETGENPlugin_SimpleHypothesis_2D.hxx
NETGENPlugin_SimpleHypothesis_3D.hxx
NETGENPlugin_SimpleHypothesis_2D_i.hxx
NETGENPlugin_SimpleHypothesis_3D_i.hxx
NETGENPlugin_Mesher.hxx
NETGENPlugin_NETGEN_3D.hxx
NETGENPlugin_NETGEN_3D_i.hxx
NETGENPlugin_NETGEN_2D.hxx
NETGENPlugin_NETGEN_2D_i.hxx
NETGENPlugin_NETGEN_2D3D.hxx
NETGENPlugin_NETGEN_2D3D_i.hxx
NETGENPlugin_NETGEN_2D_ONLY.hxx
NETGENPlugin_NETGEN_2D_ONLY_i.hxx
NETGENPlugin_Hypothesis.hxx
NETGENPlugin_Hypothesis_i.hxx
NETGENPlugin_Hypothesis_2D.hxx
NETGENPlugin_Hypothesis_2D_i.hxx
NETGENPlugin_Hypothesis_3D_i.hxx
NETGENPlugin_Hypothesis_2D_ONLY_i.hxx
NETGENPlugin_SimpleHypothesis_2D.hxx
NETGENPlugin_SimpleHypothesis_3D.hxx
NETGENPlugin_SimpleHypothesis_2D_i.hxx
NETGENPlugin_SimpleHypothesis_3D_i.hxx
NETGENPlugin_Mesher.hxx
NETGENPlugin_Remesher_2D.hxx
NETGENPlugin_Defs.hxx
NETGENPlugin_DriverParam.hxx
NETGENPlugin_NETGEN_3D_SA.hxx
NETGENPlugin_NETGEN_3D_Remote.hxx
NETGENPlugin_NETGEN_3D_Remote_i.hxx
)
# --- sources ---
@ -118,6 +129,14 @@ SET(NETGENEngine_SOURCES
NETGENPlugin_SimpleHypothesis_3D_i.cxx
NETGENPlugin_Remesher_2D.cxx
NETGENPlugin_i.cxx
NETGENPlugin_DriverParam.cxx
NETGENPlugin_NETGEN_3D_SA.cxx
NETGENPlugin_NETGEN_3D_Remote.cxx
NETGENPlugin_NETGEN_3D_Remote_i.cxx
)
SET(NetgenRunner_SOURCES
NETGENPlugin_Runner_main.cxx
)
# --- scripts ---
@ -134,6 +153,10 @@ ADD_LIBRARY(NETGENEngine ${NETGENEngine_SOURCES})
TARGET_LINK_LIBRARIES(NETGENEngine ${_link_LIBRARIES} )
INSTALL(TARGETS NETGENEngine EXPORT ${PROJECT_NAME}TargetGroup DESTINATION ${SALOME_INSTALL_LIBS})
ADD_EXECUTABLE(NETGENPlugin_Runner ${NetgenRunner_SOURCES})
TARGET_LINK_LIBRARIES(NETGENPlugin_Runner ${_link_LIBRARIES} NETGENEngine )
INSTALL(TARGETS NETGENPlugin_Runner EXPORT ${PROJECT_NAME}TargetGroup DESTINATION ${SALOME_INSTALL_BINS})
INSTALL(FILES ${NETGENEngine_HEADERS} DESTINATION ${SALOME_INSTALL_HEADERS})
SALOME_INSTALL_SCRIPTS("${_bin_SCRIPTS}" ${SALOME_INSTALL_PYTHON}/salome/NETGENPlugin)

61
src/NETGENPlugin/NETGENPluginBuilder.py
View File

@ -40,19 +40,20 @@ NETGEN_VERSION_MAJOR = NETGENPlugin.NETGEN_VERSION_MAJOR
# Mesh algo type identifiers
#----------------------------
## Algorithm type: Netgen tetrahedron 3D algorithm, see NETGEN_3D_Algorithm
## Algorithm type: Netgen tetrahedron 3D algorithm, see NETGEN_3D_Algorithm
NETGEN_3D = "NETGEN_3D"
## Algorithm type: Netgen tetrahedron 1D-2D-3D algorithm, see NETGEN_1D2D3D_Algorithm
NETGEN_3D_Remote = "NETGEN_3D_Remote"
## Algorithm type: Netgen tetrahedron 1D-2D-3D algorithm, see NETGEN_1D2D3D_Algorithm
NETGEN_1D2D3D = "NETGEN_2D3D"
## Algorithm type: Netgen triangle 1D-2D algorithm, see NETGEN_1D2D_Algorithm
## Algorithm type: Netgen triangle 1D-2D algorithm, see NETGEN_1D2D_Algorithm
NETGEN_1D2D = "NETGEN_2D"
## Algorithm type: Netgen triangle 2D algorithm, see NETGEN_2D_Only_Algorithm
NETGEN_2D = "NETGEN_2D_ONLY"
## Algorithm type: Synonim of NETGEN_1D2D3D, see NETGEN_1D2D3D_Algorithm
## Algorithm type: Synonim of NETGEN_1D2D3D, see NETGEN_1D2D3D_Algorithm
NETGEN_FULL = NETGEN_1D2D3D
## Algorithm type: Synonim of NETGEN_3D, see NETGEN_3D_Algorithm
## Algorithm type: Synonim of NETGEN_3D, see NETGEN_3D_Algorithm
NETGEN = NETGEN_3D
## Algorithm type: Synonim of NETGEN_1D2D3D, see NETGEN_1D2D3D_Algorithm
## Algorithm type: Synonim of NETGEN_1D2D3D, see NETGEN_1D2D3D_Algorithm
FULL_NETGEN = NETGEN_FULL
#----------------------------
@ -147,6 +148,12 @@ class NETGEN_Algorithm(Mesh_Algorithm):
if self.Parameters(): self.params.SetGrowthRate(theRate)
pass
## Sets @c NbThreads parameter
# @param theRate new value of the @c NbThreads parameter
def SetNbThreads(self, theNumber):
if self.Parameters(): self.params.SetNbThreads(theNumber)
pass
## Creates meshing hypothesis according to the chosen algorithm type
# and initializes it with default parameters
# @param which hypothesis type; can be either @ref SOLE (default) or @ref SIMPLE
@ -190,7 +197,7 @@ class NETGEN_Algorithm(Mesh_Algorithm):
def SetLocalSizeOnShape(self, shape, size ):
self.Parameters().SetLocalSizeOnShape(shape, size)
pass
pass # end of NETGEN_Algorithm class
@ -310,7 +317,7 @@ class NETGEN_1D2D3D_Algorithm(NETGEN_Algorithm):
pass # end of NETGEN_1D2D3D_Algorithm class
## Triangle NETGEN 1D-2D algorithm.
## Triangle NETGEN 1D-2D algorithm.
#
# It can be created by calling smeshBuilder.Mesh.Triangle( smeshBuilder.NETGEN_1D2D, geom=0 )
#
@ -328,6 +335,7 @@ class NETGEN_1D2D_Algorithm(NETGEN_1D2D3D_Algorithm):
# @internal
docHelper = "Creates triangle 2D algorithm for faces"
## Private constructor.
# @param mesh parent mesh object algorithm is assigned to
# @param geom geometry (shape/sub-shape) algorithm is assigned to;
@ -360,7 +368,9 @@ class NETGEN_2D_Only_Algorithm(NETGEN_Algorithm):
## doc string of the method
# @internal
docHelper = "Creates triangle 2D algorithm for faces"
isDefault = True
## Private constructor.
# @param mesh parent mesh object algorithm is assigned to
# @param geom geometry (shape/sub-shape) algorithm is assigned to;
@ -388,7 +398,7 @@ class NETGEN_2D_Only_Algorithm(NETGEN_Algorithm):
def LengthFromEdges(self):
hyp = self.Hypothesis("LengthFromEdges", UseExisting=1, CompareMethod=self.CompareEqualHyp)
return hyp
## Sets @c UseSurfaceCurvature flag
# @param toUse new value of the @c UseSurfaceCurvature parameter (@c True by default)
def SetUseSurfaceCurvature(self, toUse=True):
@ -470,6 +480,37 @@ class NETGEN_3D_Algorithm(NETGEN_Algorithm):
pass # end of NETGEN_3D_Algorithm class
## Tetrahedron 3D algorithm
#
# It can be created by calling smeshBuilder.Mesh.Tetrahedron() or smeshBuilder.Mesh.Tetrahedron( smeshBuilder.NETGEN, geom=0 )
#
# This algorithm generates only 3D (volumes) elements for given geometrical shape
# and, in contrast to NETGEN_1D2D3D_Algorithm class, should be used in conjunction
# with other 1D and 2D meshing algorithms.
class NETGEN_3D_Remote_Algorithm(NETGEN_3D_Algorithm):
## type of algorithm used with helper function in smeshBuilder.Mesh class
# @internal
algoType = NETGEN_3D_Remote
## flag pointing either this algorithm should be used by default in dynamic method
# of smeshBuilder.Mesh class
# @internal
isDefault = False
## doc string of the method
# @internal
docHelper = "Remotely Creates tetrahedron 3D algorithm for solids"
## Private constructor.
# @param mesh parent mesh object algorithm is assigned to
# @param geom geometry (shape/sub-shape) algorithm is assigned to;
# if it is @c 0 (default), the algorithm is assigned to the main shape
def __init__(self, mesh, geom=0):
NETGEN_3D_Algorithm.__init__(self, mesh, geom)
pass
pass # end of NETGEN_3D_Remote_Algorithm class
## Triangle (helper) 1D-2D algorithm
#

172
src/NETGENPlugin/NETGENPlugin_DriverParam.cxx Normal file
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@ -0,0 +1,172 @@
// Copyright (C) 2007-2022 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 : NETGENPlugin_DriverParam.hxx
// Author : Yoann AUDOUIN, EDF
// Module : NETGEN
//
#include "NETGENPlugin_DriverParam.hxx"
#include <iostream>
#include <fstream>
#include <string>
#include <cassert>
/**
* @brief Print content of a netgen_params
*
* @param aParams The object to display
*/
void printNetgenParams(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 << "closeedgefac: " << aParams.closeedgefac << std::endl;
std::cout << "nbThreadMesher: " << aParams.nbThreads << 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 << "has_LengthFromEdges_hyp: " << aParams.has_LengthFromEdges_hyp << 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 importNetgenParams(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.nbThreads = 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);
std::getline(myfile, line);
aParams.maxElementVolume = std::stoi(line);
};
/**
* @brief Writes the content of a netgen_param into a file
*
* @param param_file the file
* @param aParams the object
*/
void exportNetgenParams(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.nbThreads << 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 << aParams.has_LengthFromEdges_hyp << std::endl;
};

80
src/NETGENPlugin/NETGENPlugin_DriverParam.hxx Normal file
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@ -0,0 +1,80 @@
// 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 : NETGENPlugin_DriverParam.hxx
// Author : Yoann AUDOUIN, EDF
// Module : NETGEN
//
#ifndef _NETGENPLUGIN_DRIVERPARAM_HXX_
#define _NETGENPLUGIN_DRIVERPARAM_HXX_
#include <string>
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;
// Number of threads for the mesher
int nbThreads;
// 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;
// Params from NETGEN2D
bool has_LengthFromEdges_hyp=false;
};
void printNetgenParams(netgen_params& aParams);
void importNetgenParams(const std::string param_file, netgen_params& aParams);
void exportNetgenParams(const std::string param_file, netgen_params& aParams);
#endif

59
src/NETGENPlugin/NETGENPlugin_Hypothesis.cxx
View File

@ -58,6 +58,7 @@ NETGENPlugin_Hypothesis::NETGENPlugin_Hypothesis (int hypId, SMESH_Gen * gen)
_nbVolOptSteps (GetDefaultNbVolOptSteps()),
_elemSizeWeight (GetDefaultElemSizeWeight()),
_worstElemMeasure (GetDefaultWorstElemMeasure()),
_nbThreads (GetDefaultNbThreads()),
_surfaceCurvature (GetDefaultSurfaceCurvature()),
_useDelauney (GetDefaultUseDelauney()),
_checkOverlapping (GetDefaultCheckOverlapping()),
@ -84,7 +85,7 @@ void NETGENPlugin_Hypothesis::SetMaxSize(double theSize)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetMinSize(double theSize)
@ -98,7 +99,7 @@ void NETGENPlugin_Hypothesis::SetMinSize(double theSize)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetSecondOrder(bool theVal)
@ -112,7 +113,7 @@ void NETGENPlugin_Hypothesis::SetSecondOrder(bool theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetOptimize(bool theVal)
@ -126,7 +127,7 @@ void NETGENPlugin_Hypothesis::SetOptimize(bool theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetFineness(Fineness theFineness)
@ -172,7 +173,7 @@ void NETGENPlugin_Hypothesis::SetFineness(Fineness theFineness)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetGrowthRate(double theRate)
@ -187,7 +188,7 @@ void NETGENPlugin_Hypothesis::SetGrowthRate(double theRate)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetNbSegPerEdge(double theVal)
@ -202,7 +203,7 @@ void NETGENPlugin_Hypothesis::SetNbSegPerEdge(double theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetNbSegPerRadius(double theVal)
@ -217,7 +218,7 @@ void NETGENPlugin_Hypothesis::SetNbSegPerRadius(double theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetChordalErrorEnabled(bool theVal)
@ -231,7 +232,7 @@ void NETGENPlugin_Hypothesis::SetChordalErrorEnabled(bool theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetChordalError(double theVal)
@ -245,7 +246,7 @@ void NETGENPlugin_Hypothesis::SetChordalError(double theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetLocalSizeOnEntry(const std::string& entry, double localSize)
@ -273,7 +274,7 @@ double NETGENPlugin_Hypothesis::GetLocalSizeOnEntry(const std::string& entry)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::UnsetLocalSizeOnEntry(const std::string& entry)
@ -284,7 +285,7 @@ void NETGENPlugin_Hypothesis::UnsetLocalSizeOnEntry(const std::string& entry)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetMeshSizeFile(const std::string& fileName)
@ -298,7 +299,7 @@ void NETGENPlugin_Hypothesis::SetMeshSizeFile(const std::string& fileName)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetQuadAllowed(bool theVal)
@ -312,7 +313,7 @@ void NETGENPlugin_Hypothesis::SetQuadAllowed(bool theVal)
//=============================================================================
/*!
*
*
*/
//=============================================================================
void NETGENPlugin_Hypothesis::SetSurfaceCurvature(bool theVal)
@ -340,7 +341,7 @@ void NETGENPlugin_Hypothesis::SetFuseEdges(bool theVal)
//=======================================================================
//function : SetNbSurfOptSteps
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetNbSurfOptSteps( int theVal )
@ -354,7 +355,7 @@ void NETGENPlugin_Hypothesis::SetNbSurfOptSteps( int theVal )
//=======================================================================
//function : SetNbVolOptSteps
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetNbVolOptSteps( int theVal )
@ -368,7 +369,7 @@ void NETGENPlugin_Hypothesis::SetNbVolOptSteps( int theVal )
//=======================================================================
//function : SetElemSizeWeight
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetElemSizeWeight( double theVal )
@ -382,7 +383,7 @@ void NETGENPlugin_Hypothesis::SetElemSizeWeight( double theVal )
//=======================================================================
//function : SetWorstElemMeasure
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetWorstElemMeasure( int theVal )
@ -396,7 +397,7 @@ void NETGENPlugin_Hypothesis::SetWorstElemMeasure( int theVal )
//=======================================================================
//function : SetUseDelauney
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetUseDelauney( bool theVal )
@ -410,7 +411,7 @@ void NETGENPlugin_Hypothesis::SetUseDelauney( bool theVal )
//=======================================================================
//function : SetCheckOverlapping
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetCheckOverlapping( bool theVal )
@ -424,7 +425,7 @@ void NETGENPlugin_Hypothesis::SetCheckOverlapping( bool theVal )
//=======================================================================
//function : SetCheckChartBoundary
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetCheckChartBoundary( bool theVal )
@ -436,6 +437,20 @@ void NETGENPlugin_Hypothesis::SetCheckChartBoundary( bool theVal )
}
}
//=======================================================================
//function : SetNbThreads
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis::SetNbThreads( int theVal )
{
if (theVal != _nbThreads)
{
_nbThreads = theVal;
NotifySubMeshesHypothesisModification();
}
}
//=============================================================================
/*!
*
@ -485,7 +500,7 @@ ostream & NETGENPlugin_Hypothesis::SaveTo(ostream & save)
//=============================================================================
/*!
*
*
*/
//=============================================================================
istream & NETGENPlugin_Hypothesis::LoadFrom(istream & load)

8
src/NETGENPlugin/NETGENPlugin_Hypothesis.hxx
View File

@ -35,6 +35,7 @@
#include "Utils_SALOME_Exception.hxx"
#include <map>
#include <thread>
// Parameters for work of NETGEN
//
@ -125,6 +126,9 @@ public:
void SetCheckChartBoundary( bool toCheck );
bool GetCheckChartBoundary() const { return _checkChartBoundary; }
void SetNbThreads( int val );
int GetNbThreads() const { return _nbThreads; }
// the default values (taken from NETGEN 4.5 sources)
static Fineness GetDefaultFineness() { return Moderate; }
@ -145,6 +149,7 @@ public:
static bool GetDefaultCheckOverlapping() { return true; }
static bool GetDefaultCheckChartBoundary(){ return true; }
static bool GetDefaultFuseEdges() { return true; }
static int GetDefaultNbThreads() { return std::thread::hardware_concurrency(); }
// Persistence
virtual std::ostream & SaveTo (std::ostream & save);
@ -197,6 +202,9 @@ private:
//bool _blockFilling; -- not used by netgen
// (SALOME additions)
bool _fuseEdges;
// Parallelism parameters
int _nbThreads;
};
#endif

52
src/NETGENPlugin/NETGENPlugin_Hypothesis_i.cxx
View File

@ -60,7 +60,7 @@ bool NETGENPlugin_Hypothesis_i::isToSetParameter<double>(double curValue,
NETGENPlugin_Hypothesis_i::
NETGENPlugin_Hypothesis_i (PortableServer::POA_ptr thePOA,
::SMESH_Gen* theGenImpl)
: SALOME::GenericObj_i( thePOA ),
: SALOME::GenericObj_i( thePOA ),
SMESH_Hypothesis_i( thePOA ),
mySetMethodFlags(0)
{
@ -471,7 +471,7 @@ CORBA::Boolean NETGENPlugin_Hypothesis_i::GetFuseEdges()
//=======================================================================
//function : SetNbSurfOptSteps
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetNbSurfOptSteps(CORBA::Short nb )
@ -495,7 +495,7 @@ CORBA::Short NETGENPlugin_Hypothesis_i::GetNbSurfOptSteps()
//=======================================================================
//function : SetNbVolOptSteps
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetNbVolOptSteps(CORBA::Short nb )
@ -520,7 +520,7 @@ CORBA::Short NETGENPlugin_Hypothesis_i::GetNbVolOptSteps()
//=======================================================================
//function : SetElemSizeWeight
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetElemSizeWeight(CORBA::Double size )
@ -544,7 +544,7 @@ CORBA::Double NETGENPlugin_Hypothesis_i::GetElemSizeWeight()
//=======================================================================
//function : SetWorstElemMeasure
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetWorstElemMeasure(CORBA::Short val )
@ -558,7 +558,7 @@ void NETGENPlugin_Hypothesis_i::SetWorstElemMeasure(CORBA::Short val )
//=======================================================================
//function : GetWorstElemMeasure
//purpose :
//purpose :
//=======================================================================
CORBA::Short NETGENPlugin_Hypothesis_i::GetWorstElemMeasure()
@ -566,9 +566,33 @@ CORBA::Short NETGENPlugin_Hypothesis_i::GetWorstElemMeasure()
return (CORBA::Short) GetImpl()->GetWorstElemMeasure();
}
//=======================================================================
//function : SetNbThreads
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetNbThreads(CORBA::Short val )
{
if ( GetNbThreads() != val )
{
this->GetImpl()->SetNbThreads( val );
SMESH::TPythonDump() << _this() << ".SetNbThreads( " << SMESH::TVar(val) << " )";
}
}
//=======================================================================
//function : GetNbThreads
//purpose :
//=======================================================================
CORBA::Short NETGENPlugin_Hypothesis_i::GetNbThreads()
{
return (CORBA::Short) GetImpl()->GetNbThreads();
}
//=======================================================================
//function : SetUseDelauney
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetUseDelauney(CORBA::Boolean toUse)
@ -582,7 +606,7 @@ void NETGENPlugin_Hypothesis_i::SetUseDelauney(CORBA::Boolean toUse)
//=======================================================================
//function : GetUseDelauney
//purpose :
//purpose :
//=======================================================================
CORBA::Boolean NETGENPlugin_Hypothesis_i::GetUseDelauney()
@ -592,7 +616,7 @@ CORBA::Boolean NETGENPlugin_Hypothesis_i::GetUseDelauney()
//=======================================================================
//function : SetCheckOverlapping
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetCheckOverlapping(CORBA::Boolean toCheck )
@ -606,7 +630,7 @@ void NETGENPlugin_Hypothesis_i::SetCheckOverlapping(CORBA::Boolean toCheck )
//=======================================================================
//function : GetCheckOverlapping
//purpose :
//purpose :
//=======================================================================
CORBA::Boolean NETGENPlugin_Hypothesis_i::GetCheckOverlapping()
@ -616,7 +640,7 @@ CORBA::Boolean NETGENPlugin_Hypothesis_i::GetCheckOverlapping()
//=======================================================================
//function : SetCheckChartBoundary
//purpose :
//purpose :
//=======================================================================
void NETGENPlugin_Hypothesis_i::SetCheckChartBoundary(CORBA::Boolean toCheck )
@ -652,13 +676,13 @@ CORBA::Boolean NETGENPlugin_Hypothesis_i::GetCheckChartBoundary()
//================================================================================
/*!
* \brief Verify whether hypothesis supports given entity type
* \brief Verify whether hypothesis supports given entity type
* \param type - dimension (see SMESH::Dimension enumeration)
* \retval CORBA::Boolean - TRUE if dimension is supported, FALSE otherwise
*
*
* Verify whether hypothesis supports given entity type (see SMESH::Dimension enumeration)
*/
//================================================================================
//================================================================================
CORBA::Boolean NETGENPlugin_Hypothesis_i::IsDimSupported( SMESH::Dimension type )
{
return type == SMESH::DIM_3D;

5
src/NETGENPlugin/NETGENPlugin_Hypothesis_i.hxx
View File

@ -113,6 +113,9 @@ class NETGENPLUGIN_EXPORT NETGENPlugin_Hypothesis_i:
void SetWorstElemMeasure(CORBA::Short val );
CORBA::Short GetWorstElemMeasure();
void SetNbThreads(CORBA::Short val );
CORBA::Short GetNbThreads();
void SetUseDelauney(CORBA::Boolean toUse);
CORBA::Boolean GetUseDelauney();
@ -125,7 +128,7 @@ class NETGENPLUGIN_EXPORT NETGENPlugin_Hypothesis_i:
// Get implementation
::NETGENPlugin_Hypothesis* GetImpl();
// Verify whether hypothesis supports given entity type
// Verify whether hypothesis supports given entity type
CORBA::Boolean IsDimSupported( SMESH::Dimension type );

66
src/NETGENPlugin/NETGENPlugin_Mesher.cxx
View File

@ -380,7 +380,7 @@ namespace
//================================================================================
/*!
* \brief Restrict size of elements on the given edge
* \brief Restrict size of elements on the given edge
*/
//================================================================================
@ -599,20 +599,22 @@ void NETGENPlugin_Mesher::SetDefaultParameters()
_fineness = NETGENPlugin_Hypothesis::GetDefaultFineness();
mparams.uselocalh = NETGENPlugin_Hypothesis::GetDefaultSurfaceCurvature();
netgen::merge_solids = NETGENPlugin_Hypothesis::GetDefaultFuseEdges();
// Unused argument but set 0 to initialise it
mparams.elementorder = 0;
#ifdef NETGEN_V6
mparams.nthreads = std::thread::hardware_concurrency();
mparams.nthreads = NETGENPlugin_Hypothesis::GetDefaultNbThreads();
if ( getenv( "SALOME_NETGEN_DISABLE_MULTITHREADING" ))
{
mparams.nthreads = 1;
mparams.parallel_meshing = false;
}
#endif
}
//=============================================================================
/*!
* Pass parameters to NETGEN
@ -655,6 +657,7 @@ void NETGENPlugin_Mesher::SetParameters(const NETGENPlugin_Hypothesis* hyp)
#ifdef NETGEN_V6
// std::string
mparams.meshsizefilename = hyp->GetMeshSizeFile();
mparams.nthreads = hyp->GetNbThreads();
#else
// const char*
mparams.meshsizefilename= hyp->GetMeshSizeFile().empty() ? 0 : hyp->GetMeshSizeFile().c_str();
@ -1575,7 +1578,7 @@ void NETGENPlugin_Mesher::FixIntFaces(const netgen::OCCGeometry& occgeom,
NETGENPlugin_Internals& internalShapes)
{
SMESHDS_Mesh* meshDS = internalShapes.getMesh().GetMeshDS();
// find ng indices of internal faces
set<int> ngFaceIds;
for ( int ngFaceID = 1; ngFaceID <= occgeom.fmap.Extent(); ++ngFaceID )
@ -1735,7 +1738,7 @@ namespace
double dist3D = surf->Value( uv1.X(), uv1.Y() ).Distance( surf->Value( uv2.X(), uv2.Y() ));
if ( stopHandler == 0 ) // stop recursion
return dist3D;
// start recursion if necessary
double dist2D = SMESH_MesherHelper::ApplyIn2D(surf, uv1, uv2, gp_XY_Subtracted, 0).Modulus();
if ( fabs( dist3D - dist2D ) < dist2D * 1e-10 )
@ -2205,7 +2208,7 @@ void NETGENPlugin_Mesher::AddIntVerticesInSolids(const netgen::OCCGeometry&
* \param wires - data of nodes on FACE boundary
* \param helper - mesher helper holding the FACE
* \param nodeVec - vector of nodes in which node index == netgen ID
* \retval SMESH_ComputeErrorPtr - error description
* \retval SMESH_ComputeErrorPtr - error description
*/
//================================================================================
@ -2712,7 +2715,7 @@ int NETGENPlugin_Mesher::FillSMesh(const netgen::OCCGeometry& occgeo,
for ( int i = 1; i <= nbVol; ++i )
{
const netgen::Element& elem = ngMesh.VolumeElement(i);
const netgen::Element& elem = ngMesh.VolumeElement(i);
int aSolidInd = elem.GetIndex();
TopoDS_Solid aSolid;
if ( aSolidInd > 0 && aSolidInd <= occgeo.somap.Extent() )
@ -2905,7 +2908,7 @@ bool NETGENPlugin_Mesher::Compute()
// vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec;
{
// ----------------
// compute 1D mesh
@ -3511,7 +3514,7 @@ bool NETGENPlugin_Mesher::Evaluate(MapShapeNbElems& aResMap)
const int hugeNb = std::numeric_limits<int>::max() / 100;
// ----------------
// evaluate 1D
// evaluate 1D
// ----------------
// pass 1D simple parameters to NETGEN
if ( _simpleHyp )
@ -3618,7 +3621,7 @@ bool NETGENPlugin_Mesher::Evaluate(MapShapeNbElems& aResMap)
return false;
// ----------------
// evaluate 2D
// evaluate 2D
// ----------------
if ( _simpleHyp ) {
if ( double area = _simpleHyp->GetMaxElementArea() ) {
@ -3820,9 +3823,9 @@ NETGENPlugin_Mesher::ReadErrors(const vector<const SMDS_MeshNode* >& nodeVec)
}
else if ( strncmp( file, "Intersecting: ", 14 ) == 0 )
{
// Intersecting:
// Intersecting:
// openelement 18 with open element 126
// 41 36 38
// 41 36 38
// 69 70 72
file.getLine();
const char* pos = file;
@ -3939,7 +3942,7 @@ void NETGENPlugin_Mesher::toPython( const netgen::Mesh* ngMesh )
#else //////// V 5
PointIndex pi;
for (pi = PointIndex::BASE;
for (pi = PointIndex::BASE;
pi < ngMesh->GetNP()+PointIndex::BASE; pi++)
{
outfile << "mesh.AddNode( ";
@ -4437,18 +4440,7 @@ NETGENPlugin_NetgenLibWrapper::NETGENPlugin_NetgenLibWrapper():
_ngcerr = NULL;
if ( !getenv( "KEEP_NETGEN_OUTPUT" ))
{
// redirect all netgen output (mycout,myerr,cout) to _outputFileName
_outputFileName = getOutputFileName();
_ngcout = netgen::mycout;
_ngcerr = netgen::myerr;
netgen::mycout = new ofstream ( _outputFileName.c_str() );
netgen::myerr = netgen::mycout;
_coutBuffer = std::cout.rdbuf();
#ifdef _DEBUG_
std::cout << "NOTE: netgen output is redirected to file " << _outputFileName << std::endl;
#else
std::cout.rdbuf( netgen::mycout->rdbuf() );
#endif
setOutputFile(getOutputFileName());
}
setMesh( Ng_NewMesh() );
@ -4507,6 +4499,9 @@ int NETGENPlugin_NetgenLibWrapper::GenerateMesh( netgen::OCCGeometry& occgeo,
if ( !ngMesh )
ngMesh = new netgen::Mesh;
// To dump mparam
// netgen::mparam.Print(std::cerr);
#ifdef NETGEN_V6
ngMesh->SetGeometry( shared_ptr<netgen::NetgenGeometry>( &occgeo, &NOOP_Deleter ));
@ -4569,6 +4564,27 @@ std::string NETGENPlugin_NetgenLibWrapper::getOutputFileName()
return aGenericName.ToCString();
}
//================================================================================
/*!
* \brief Set output file name for netgen log
*/
//================================================================================
void NETGENPlugin_NetgenLibWrapper::setOutputFile(std::string outputfile)
{
// redirect all netgen output (mycout,myerr,cout) to _outputFileName
_outputFileName = outputfile;
_ngcout = netgen::mycout;
_ngcerr = netgen::myerr;
netgen::mycout = new ofstream ( _outputFileName.c_str() );
netgen::myerr = netgen::mycout;
_coutBuffer = std::cout.rdbuf();
#ifdef _DEBUG_
std::cout << "NOTE: netgen output is redirected to file " << _outputFileName << std::endl;
#else
std::cout.rdbuf( netgen::mycout->rdbuf() );
#endif
}
//================================================================================
/*!

8
src/NETGENPlugin/NETGENPlugin_Mesher.hxx
View File

@ -92,16 +92,20 @@ struct NETGENPLUGIN_EXPORT NETGENPlugin_NetgenLibWrapper
void setMesh( nglib::Ng_Mesh* mesh );
nglib::Ng_Mesh* ngMesh() { return (nglib::Ng_Mesh*)(void*)_ngMesh; }
static int GenerateMesh(netgen::OCCGeometry& occgeo, int startWith, int endWith,
netgen::Mesh* & ngMesh);
int GenerateMesh(netgen::OCCGeometry& occgeo, int startWith, int endWith )
{
return GenerateMesh( occgeo, startWith, endWith, _ngMesh );
}
static void CalcLocalH( netgen::Mesh * ngMesh );
static void RemoveTmpFiles();
static int& instanceCounter();
void setOutputFile(std::string);
private:
std::string getOutputFileName();
@ -119,7 +123,7 @@ struct NETGENPLUGIN_EXPORT NETGENPlugin_NetgenLibWrapper
*/
//=============================================================================
class NETGENPLUGIN_EXPORT NETGENPlugin_Mesher
class NETGENPLUGIN_EXPORT NETGENPlugin_Mesher
{
public:
// ---------- PUBLIC METHODS ----------
@ -272,7 +276,7 @@ public:
bool isShapeToPrecompute(const TopoDS_Shape& s);
// 2D meshing
// edges
// edges
bool hasInternalEdges() const { return !_e2face.empty(); }
bool isInternalEdge( int id ) const { return _e2face.count( id ); }
const std::map<int,int>& getEdgesAndVerticesWithFaces() const { return _e2face; }

8
src/NETGENPlugin/NETGENPlugin_NETGEN_2D_ONLY.cxx
View File

@ -76,7 +76,7 @@ using namespace nglib;
//=============================================================================
/*!
*
*
*/
//=============================================================================
@ -85,7 +85,7 @@ NETGENPlugin_NETGEN_2D_ONLY::NETGENPlugin_NETGEN_2D_ONLY(int hypId,
: SMESH_2D_Algo(hypId, gen)
{
_name = "NETGEN_2D_ONLY";
_shapeType = (1 << TopAbs_FACE);// 1 bit /shape type
_onlyUnaryInput = false; // treat all FACEs at once
@ -103,7 +103,7 @@ NETGENPlugin_NETGEN_2D_ONLY::NETGENPlugin_NETGEN_2D_ONLY(int hypId,
//=============================================================================
/*!
*
*
*/
//=============================================================================
@ -114,7 +114,7 @@ NETGENPlugin_NETGEN_2D_ONLY::~NETGENPlugin_NETGEN_2D_ONLY()
//=============================================================================
/*!
*
*
*/
//=============================================================================

538
src/NETGENPlugin/NETGENPlugin_NETGEN_3D.cxx
View File

@ -45,6 +45,8 @@
#include <StdMeshers_MaxElementVolume.hxx>
#include <StdMeshers_QuadToTriaAdaptor.hxx>
#include <StdMeshers_ViscousLayers.hxx>
#include <SMESH_subMesh.hxx>
#include <BRepGProp.hxx>
#include <BRep_Tool.hxx>
@ -63,6 +65,8 @@
#include <vector>
#include <map>
#include <cstdlib>
/*
Netgen include files
*/
@ -95,7 +99,7 @@ using namespace std;
//=============================================================================
/*!
*
*
*/
//=============================================================================
@ -119,7 +123,7 @@ NETGENPlugin_NETGEN_3D::NETGENPlugin_NETGEN_3D(int hypId, SMESH_Gen* gen)
//=============================================================================
/*!
*
*
*/
//=============================================================================
@ -129,7 +133,7 @@ NETGENPlugin_NETGEN_3D::~NETGENPlugin_NETGEN_3D()
//=============================================================================
/*!
*
*
*/
//=============================================================================
@ -143,8 +147,8 @@ bool NETGENPlugin_NETGEN_3D::CheckHypothesis (SMESH_Mesh& aMesh,
_maxElementVolume = DBL_MAX;
// for correct work of GetProgress():
netgen::multithread.percent = 0.;
netgen::multithread.task = "Volume meshing";
//netgen::multithread.percent = 0.;
//netgen::multithread.task = "Volume meshing";
_progressByTic = -1.;
list<const SMESHDS_Hypothesis*>::const_iterator itl;
@ -186,14 +190,102 @@ bool NETGENPlugin_NETGEN_3D::CheckHypothesis (SMESH_Mesh& aMesh,
return aStatus == HYP_OK;
}
//=============================================================================
/*!
*Here we are going to use the NETGEN mesher
*/
//=============================================================================
bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
/**
* @brief Compute the list of already meshed Surface elements and info
* on their orientation and if they are internal
*
* @param aMesh Global Mesh
* @param aShape Shape associated to the mesh
* @param proxyMesh pointer to mesh used fo find the elements
* @param internals information on internal sub shapes
* @param helper helper associated to the mesh
* @param listElements map of surface element associated with
* their orientation and internal status
* @return true if their was some error
*/
bool NETGENPlugin_NETGEN_3D::getSurfaceElements(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_ProxyMesh::Ptr proxyMesh,
NETGENPlugin_Internals &internals,
SMESH_MesherHelper &helper,
std::map<const SMDS_MeshElement*, tuple<bool, bool>, TIDCompare>& listElements
)
{
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
{
const TopoDS_Shape& aShapeFace = exFa.Current();
int faceID = meshDS->ShapeToIndex( aShapeFace );
bool isInternalFace = internals.isInternalShape( faceID );
bool isRev = false;
if ( checkReverse && !isInternalFace &&
helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
// IsReversedSubMesh() can work wrong on strongly curved faces,
// so we use it as less as possible
isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
if ( !aSubMeshDSFace ) continue;
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
if ( _quadraticMesh &&
dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
{
// add medium nodes of proxy triangles to helper (#16843)
while ( iteratorElem->more() )
helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
iteratorElem = aSubMeshDSFace->GetElements();
}
while(iteratorElem->more()){
const SMDS_MeshElement* elem = iteratorElem->next();
// check mesh face
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");
}
listElements[elem] = tuple(isRev, isInternalFace);
}
}
return false;
}
/**
* @brief Part of Compute: adding already meshed elements
* into netgen structure
*
* @param aMesh Global mesh
* @param aShape Shape associated with the mesh
* @param nodeVec Mapping between nodes mesh id and netgen structure id
* @param ngLib Wrapper on netgen lib
* @param helper helper assocaited to the mesh
* @param Netgen_NbOfNodes Number of nodes in netge structure
* @return true if there was some error
*/
bool NETGENPlugin_NETGEN_3D::computeFillNgMesh(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
SMESH_MesherHelper &helper,
int &Netgen_NbOfNodes)
{
netgen::multithread.terminate = 0;
netgen::multithread.task = "Volume meshing";
@ -201,19 +293,15 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
SMESH_MesherHelper helper(aMesh);
_quadraticMesh = helper.IsQuadraticSubMesh(aShape);
helper.SetElementsOnShape( true );
int Netgen_NbOfNodes = 0;
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;
@ -221,6 +309,8 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
SMESH::Controls::TSequenceOfXYZ nodesCoords;
// maps nodes to ng ID
// map must be sorted by ID to ensure that we will have the same number of
// 3D element if we recompute
typedef map< const SMDS_MeshNode*, int, TIDCompare > TNodeToIDMap;
typedef TNodeToIDMap::value_type TN2ID;
TNodeToIDMap nodeToNetgenID;
@ -231,9 +321,8 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
// ---------------------------------
// Feed the Netgen with surface mesh
// ---------------------------------
TopAbs_ShapeEnum mainType = aMesh.GetShapeToMesh().ShapeType();
bool checkReverse = ( mainType == TopAbs_COMPOUND || mainType == TopAbs_COMPSOLID );
bool isRev=false;
bool isInternalFace=false;
SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
if ( _viscousLayersHyp )
@ -251,82 +340,58 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
proxyMesh.reset( Adaptor );
}
for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
// map must be sorted by ID to ensure that we will have the same number of
// 3D element if we recompute
std::map<const SMDS_MeshElement*, tuple<bool, bool>, TIDCompare> listElements;
bool ret = getSurfaceElements(aMesh, aShape, proxyMesh, internals, helper, listElements);
if(ret)
return ret;
for ( auto const& [elem, info] : listElements ) // loop on elements on a geom face
{
const TopoDS_Shape& aShapeFace = exFa.Current();
int faceID = meshDS->ShapeToIndex( aShapeFace );
bool isInternalFace = internals.isInternalShape( faceID );
bool isRev = false;
if ( checkReverse && !isInternalFace &&
helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
// IsReversedSubMesh() can work wrong on strongly curved faces,
// so we use it as less as possible
isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
isRev = get<0>(info);
isInternalFace = get<1>(info);
// Add nodes of triangles and triangles them-selves to netgen mesh
const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
if ( !aSubMeshDSFace ) continue;
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
if ( _quadraticMesh &&
dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
// add three nodes of triangle
bool hasDegen = false;
for ( int iN = 0; iN < 3; ++iN )
{
// add medium nodes of proxy triangles to helper (#16843)
while ( iteratorElem->more() )
helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
iteratorElem = aSubMeshDSFace->GetElements();
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;
}
while ( iteratorElem->more() ) // loop on elements on a geom face
// 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);
if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
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");
// 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;
swap( Netgen_triangle[1], Netgen_triangle[2] );
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
if ( isInternalFace && !proxyMesh->IsTemporary( elem ))
{
swap( Netgen_triangle[1], Netgen_triangle[2] );
Ng_AddSurfaceElement(Netgen_mesh, NG_TRIG, Netgen_triangle);
}
} // loop on elements on a face
} // loop on faces of a SOLID or SHELL
}
} // loop on elements on a face
// insert old nodes into nodeVec
nodeVec.resize( nodeToNetgenID.size() + 1, 0 );
@ -344,85 +409,238 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
internals);
}
}
// -------------------------
// Generate the volume mesh
// -------------------------
return ( ngLib._isComputeOk = compute( aMesh, helper, nodeVec, ngLib ));
Netgen_NbOfNodes = Ng_GetNP( Netgen_mesh );
return false;
}
// namespace
// {
// void limitVolumeSize( netgen::Mesh* ngMesh,
// double maxh )
// {
// // get average h of faces
// double faceh = 0;
// int nbh = 0;
// for (int i = 1; i <= ngMesh->GetNSE(); i++)
// {
// const netgen::Element2d& face = ngMesh->SurfaceElement(i);
// for (int j=1; j <= face.GetNP(); ++j)
// {
// const netgen::PointIndex & i1 = face.PNumMod(j);
// const netgen::PointIndex & i2 = face.PNumMod(j+1);
// if ( i1 < i2 )
// {
// const netgen::Point3d & p1 = ngMesh->Point( i1 );
// const netgen::Point3d & p2 = ngMesh->Point( i2 );
// faceh += netgen::Dist2( p1, p2 );
// nbh++;
// }
// }
// }
// faceh = Sqrt( faceh / nbh );
/**
* @brief Part of Compute: Setting the netgen parameters from the Hypothesis
*
* @param aMesh Global mesh
* @param ngLib Wrapper on netgen lib
* @param occgeo Mapping between nodes mesh id and netgen structure id
* @param helper helper assocaited to the mesh
* @param endWith end step of netgen
* @return true if there was some error
*/
bool NETGENPlugin_NETGEN_3D::computePrepareParam(
SMESH_Mesh& aMesh,
NETGENPlugin_NetgenLibWrapper &ngLib,
netgen::OCCGeometry &occgeo,
SMESH_MesherHelper &helper,
int &endWith)
// double compareh;
// if ( faceh < 0.5 * maxh ) compareh = -1;
// else if ( faceh > 1.5 * maxh ) compareh = 1;
// else compareh = 0;
// // cerr << "faceh " << faceh << endl;
// // cerr << "init maxh " << maxh << endl;
// // cerr << "compareh " << compareh << endl;
{
netgen::multithread.terminate = 0;
// if ( compareh > 0 )
// maxh *= 1.2;
// else
// maxh *= 0.8;
// // cerr << "maxh " << maxh << endl;
netgen::Mesh* ngMesh = ngLib._ngMesh;
// // get bnd box
// netgen::Point3d pmin, pmax;
// ngMesh->GetBox( pmin, pmax, 0 );
// const double dx = pmax.X() - pmin.X();
// const double dy = pmax.Y() - pmin.Y();
// const double dz = pmax.Z() - pmin.Z();
NETGENPlugin_Mesher aMesher( &aMesh, helper.GetSubShape(), /*isVolume=*/true );
// if ( ! & ngMesh->LocalHFunction() )
// ngMesh->SetLocalH( pmin, pmax, compareh <= 0 ? 0.1 : 0.5 );
// // adjusted by SALOME_TESTS/Grids/smesh/bugs_08/I8
// const int nbX = Max( 2, int( dx / maxh * 2 ));
// const int nbY = Max( 2, int( dy / maxh * 2 ));
// const int nbZ = Max( 2, int( dz / maxh * 2 ));
if ( _hypParameters )
{
aMesher.SetParameters( _hypParameters );
// netgen::Point3d p;
// for ( int i = 0; i <= nbX; ++i )
// {
// p.X() = pmin.X() + i * dx / nbX;
// for ( int j = 0; j <= nbY; ++j )
// {
// p.Y() = pmin.Y() + j * dy / nbY;
// for ( int k = 0; k <= nbZ; ++k )
// {
// p.Z() = pmin.Z() + k * dz / nbZ;
// ngMesh->RestrictLocalH( p, maxh );
// }
// }
// }
// }
// }
if ( !_hypParameters->GetLocalSizesAndEntries().empty() ||
!_hypParameters->GetMeshSizeFile().empty() )
{
if ( ! &ngMesh->LocalHFunction() )
{
netgen::Point3d pmin, pmax;
ngMesh->GetBox( pmin, pmax, 0 );
ngMesh->SetLocalH( pmin, pmax, _hypParameters->GetGrowthRate() );
}
aMesher.SetLocalSize( occgeo, *ngMesh );
try {
ngMesh->LoadLocalMeshSize( netgen::mparam.meshsizefilename );
} catch (netgen::NgException & ex) {
return error( COMPERR_BAD_PARMETERS, ex.What() );
}
}
if ( !_hypParameters->GetOptimize() )
endWith = netgen::MESHCONST_MESHVOLUME;
}
else if ( _hypMaxElementVolume )
{
netgen::mparam.maxh = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
// limitVolumeSize( ngMesh, 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 ( !_hypParameters && aMesh.HasShapeToMesh() )
{
netgen::mparam.minh = aMesher.GetDefaultMinSize( helper.GetSubShape(), netgen::mparam.maxh );
}
return false;
}
/**
* @brief Part of Compute: call to the netgen mesher
*
* @param occgeo netgen geometry structure
* @param nodeVec Mapping between nodes mesh id and netgen structure id
* @param ngMesh netgen mesh structure
* @param ngLib Wrapper on netgen lib
* @param startWith starting step of netgen
* @param endWith end step of netgen
* @return true if there was some error
*/
bool NETGENPlugin_NETGEN_3D::computeRunMesher(
netgen::OCCGeometry &occgeo,
vector< const SMDS_MeshNode* > &nodeVec,
netgen::Mesh* ngMesh,
NETGENPlugin_NetgenLibWrapper &ngLib,
int &startWith, int &endWith)
{
int err = 1;
try
{
OCC_CATCH_SIGNALS;
ngLib.CalcLocalH(ngMesh);
err = ngLib.GenerateMesh(occgeo, startWith, endWith);
if(netgen::multithread.terminate)
return false;
if ( err ){
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();
error(str);
}
catch (netgen::NgException& exc)
{
SMESH_Comment str("NgException");
if ( strlen( netgen::multithread.task ) > 0 )
str << " at " << netgen::multithread.task;
str << ": " << exc.What();
error(str);
}
catch (...)
{
SMESH_Comment str("Exception in netgen::OCCGenerateMesh()");
if ( strlen( netgen::multithread.task ) > 0 )
str << " at " << netgen::multithread.task;
error(str);
}
if ( err )
{
SMESH_ComputeErrorPtr ce = NETGENPlugin_Mesher::ReadErrors(nodeVec);
if ( ce && ce->HasBadElems() ){
error( ce );
}
}
return false;
}
/**
* @brief Part of Compute: Adding new element created by mesher to SMESH_Mesh
*
* @param nodeVec Mapping between nodes mesh id and netgen structure id
* @param ngLib Wrapper on netgen lib
* @param helper tool associated to the mesh to add element
* @param Netgen_NbOfNodes Number of nodes in netgen structure
* @return true if there was some error
*/
bool NETGENPlugin_NETGEN_3D::computeFillMesh(
vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
SMESH_MesherHelper &helper,
int &Netgen_NbOfNodes
)
{
Ng_Mesh* Netgen_mesh = ngLib.ngMesh();
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
bool isOK = ( /*status == NG_OK &&*/ Netgen_NbOfTetra > 0 );// get whatever built
if ( isOK )
{
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 false;
}
/**
* @brief Compute mesh associate to shape
*
* @param aMesh The mesh
* @param aShape The shape
* @return true fi there are some error
*/
bool NETGENPlugin_NETGEN_3D::Compute(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
// vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec;
NETGENPlugin_NetgenLibWrapper ngLib;
SMESH_MesherHelper helper(aMesh);
int startWith = netgen::MESHCONST_MESHVOLUME;
int endWith = netgen::MESHCONST_OPTVOLUME;
int Netgen_NbOfNodes;
computeFillNgMesh(aMesh, aShape, nodeVec, ngLib, helper, Netgen_NbOfNodes);
netgen::OCCGeometry occgeo;
computePrepareParam(aMesh, ngLib, occgeo, helper, endWith);
computeRunMesher(occgeo, nodeVec, ngLib._ngMesh, ngLib, startWith, endWith);
computeFillMesh(nodeVec, ngLib, helper, Netgen_NbOfNodes);
return false;
}
//================================================================================
/*!
@ -475,7 +693,7 @@ bool NETGENPlugin_NETGEN_3D::compute(SMESH_Mesh& aMesh,
else if ( _hypMaxElementVolume )
{
netgen::mparam.maxh = pow( 72, 1/6. ) * pow( _maxElementVolume, 1/3. );
// limitVolumeSize( ngMesh, netgen::mparam.maxh ); // result is unpredictable
// limitVolumeSize( ngMesh, mparam.maxh ); // result is unpredictable
}
else if ( aMesh.HasShapeToMesh() )
{
@ -641,7 +859,7 @@ bool NETGENPlugin_NETGEN_3D::Compute(SMESH_Mesh& aMesh,
return error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
if ( elem->NbCornerNodes() != 3 )
return error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
// add three nodes of triangle
for ( int iN = 0; iN < 3; ++iN )
{
@ -701,14 +919,12 @@ double NETGENPlugin_NETGEN_3D::GetProgress() const
strncmp( netgen::multithread.task, volMeshing, 3 ) == 0 ))
{
res = 0.001 + meshingRatio * netgen::multithread.percent / 100.;
//cout << netgen::multithread.task << " " <<_progressTic << "-" << netgen::multithread.percent << endl;
}
else // different otimizations
{
if ( _progressByTic < 0. )
((NETGENPlugin_NETGEN_3D*)this)->_progressByTic = meshingRatio / _progressTic;
res = _progressByTic * _progressTic;
//cout << netgen::multithread.task << " " << _progressTic << " " << res << endl;
}
return Min ( res, 0.98 );
}
@ -797,7 +1013,7 @@ bool NETGENPlugin_NETGEN_3D::Evaluate(SMESH_Mesh& aMesh,
}
SMESH_subMesh *sm = aMesh.GetSubMesh(aShape);
aResMap.insert(std::make_pair(sm,aVec));
return true;
}

41
src/NETGENPlugin/NETGENPlugin_NETGEN_3D.hxx
View File

@ -37,10 +37,15 @@
#include "SMESH_Algo.hxx"
#include "Utils_SALOME_Exception.hxx"
#include <vector>
#include <tuple>
class StdMeshers_ViscousLayers;
class StdMeshers_MaxElementVolume;
class NETGENPlugin_Hypothesis;
class NETGENPlugin_NetgenLibWrapper;
class netgen_params;
class SMDS_MeshNode;
class NETGENPLUGIN_EXPORT NETGENPlugin_NETGEN_3D: public SMESH_3D_Algo
{
@ -66,8 +71,44 @@ class NETGENPLUGIN_EXPORT NETGENPlugin_NETGEN_3D: public SMESH_3D_Algo
const TopoDS_Shape& aShape,
MapShapeNbElems& aResMap);
bool computeFillNgMesh(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
std::vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
SMESH_MesherHelper &helper,
int &Netgen_NbOfNodes);
bool computePrepareParam(
SMESH_Mesh& aMesh,
NETGENPlugin_NetgenLibWrapper &ngLib,
netgen::OCCGeometry &occgeo,
SMESH_MesherHelper &helper,
int &endWith);
bool computeRunMesher(
netgen::OCCGeometry &occgeo,
std::vector< const SMDS_MeshNode* > &nodeVec,
netgen::Mesh* ngMesh,
NETGENPlugin_NetgenLibWrapper &ngLib,
int &startWith, int &endWith);
bool computeFillMesh(
std::vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
SMESH_MesherHelper &helper,
int &Netgen_NbOfNodes);
protected:
virtual bool getSurfaceElements(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_ProxyMesh::Ptr proxyMesh,
NETGENPlugin_Internals &internals,
SMESH_MesherHelper &helper,
std::map<const SMDS_MeshElement*, std::tuple<bool, bool>, TIDCompare>& listElements);
bool compute(SMESH_Mesh& mesh,
SMESH_MesherHelper& helper,
std::vector< const SMDS_MeshNode* >& nodeVec,

384
src/NETGENPlugin/NETGENPlugin_NETGEN_3D_Remote.cxx Normal file
View File

@ -0,0 +1,384 @@
// Copyright (C) 2007-2022 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 : NETGENPlugin_NETGEN_3D_Remote.cxx
// Created : lundi 19 Septembre 2022
// Author : Yoann AUDOUIN (CEA)
// Project : SALOME
//=============================================================================
//
//
#include "NETGENPlugin_NETGEN_3D_Remote.hxx"
#include "NETGENPlugin_NETGEN_3D.hxx"
#include "NETGENPlugin_DriverParam.hxx"
#include "NETGENPlugin_Hypothesis.hxx"
#include "Utils_SALOME_Exception.hxx"
#include <SMESH_Gen.hxx>
#include <SMESH_Mesh.hxx>
#include <SMESH_MesherHelper.hxx>
#include <SMESH_DriverShape.hxx>
#include <SMESH_DriverMesh.hxx>
#include <SMESHDS_Mesh.hxx>
#include <SMESH_MeshLocker.hxx>
#include <QString>
#include <QProcess>
#include <boost/filesystem.hpp>
namespace fs = boost::filesystem;
/*
Netgen include files
*/
#ifndef OCCGEOMETRY
#define OCCGEOMETRY
#endif
#include <occgeom.hpp>
#ifdef NETGEN_V5
#include <ngexception.hpp>
#endif
#ifdef NETGEN_V6
#include <core/exception.hpp>
#endif
namespace nglib {
#include <nglib.h>
}
namespace netgen {
NETGENPLUGIN_DLL_HEADER
extern MeshingParameters mparam;
NETGENPLUGIN_DLL_HEADER
extern volatile multithreadt multithread;
}
using namespace nglib;
//=============================================================================
/*!
* Constructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_Remote::NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen * gen)
: NETGENPlugin_NETGEN_3D(hypId, gen)
{
_name = "NETGEN_3D_Remote";
}
//=============================================================================
/*!
* Destructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_Remote::~NETGENPlugin_NETGEN_3D_Remote()
{
}
/**
* @brief Fill the structure netgen_param with the information from the hypothesis
*
* @param hyp the hypothesis
* @param aParams the netgen_param structure
*/
void NETGENPlugin_NETGEN_3D_Remote::fillParameters(const NETGENPlugin_Hypothesis* hyp, netgen_params &aParams)
{
aParams.maxh = hyp->GetMaxSize();
aParams.minh = hyp->GetMinSize();
aParams.segmentsperedge = hyp->GetNbSegPerEdge();
aParams.grading = hyp->GetGrowthRate();
aParams.curvaturesafety = hyp->GetNbSegPerRadius();
aParams.secondorder = hyp->GetSecondOrder() ? 1 : 0;
aParams.quad = hyp->GetQuadAllowed() ? 1 : 0;
aParams.optimize = hyp->GetOptimize();
aParams.fineness = hyp->GetFineness();
aParams.uselocalh = hyp->GetSurfaceCurvature();
aParams.merge_solids = hyp->GetFuseEdges();
aParams.chordalError = hyp->GetChordalErrorEnabled() ? hyp->GetChordalError() : -1.;
aParams.optsteps2d = aParams.optimize ? hyp->GetNbSurfOptSteps() : 0;
aParams.optsteps3d = aParams.optimize ? hyp->GetNbVolOptSteps() : 0;
aParams.elsizeweight = hyp->GetElemSizeWeight();
aParams.opterrpow = hyp->GetWorstElemMeasure();
aParams.delaunay = hyp->GetUseDelauney();
aParams.checkoverlap = hyp->GetCheckOverlapping();
aParams.checkchartboundary = hyp->GetCheckChartBoundary();
#ifdef NETGEN_V6
// std::string
aParams.meshsizefilename = hyp->GetMeshSizeFile();
aParams.closeedgefac = 2;
aParams.nbThreads = hyp->GetNbThreads();
#else
// const char*
aParams.meshsizefilename = hyp->GetMeshSizeFile();
aParams.closeedgefac = 0;
#endif
}
//
/**
* @brief write in a binary file the orientation for each surface element of the mesh
*
* @param aMesh The mesh
* @param aShape the shape associated to the mesh
* @param output_file name of the binary file
*/
void NETGENPlugin_NETGEN_3D_Remote::exportElementOrientation(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
const std::string output_file)
{
SMESH_MesherHelper helper(aMesh);
NETGENPlugin_Internals internals( aMesh, aShape, /*is3D=*/true );
SMESH_ProxyMesh::Ptr proxyMesh( new SMESH_ProxyMesh( aMesh ));
std::map<vtkIdType, bool> elemOrientation;
for ( TopExp_Explorer exFa( aShape, TopAbs_FACE ); exFa.More(); exFa.Next())
{
const TopoDS_Shape& aShapeFace = exFa.Current();
int faceID = aMesh.GetMeshDS()->ShapeToIndex( aShapeFace );
bool isInternalFace = internals.isInternalShape( faceID );
bool isRev = false;
if ( !isInternalFace &&
helper.NbAncestors(aShapeFace, aMesh, aShape.ShapeType()) > 1 )
// IsReversedSubMesh() can work wrong on strongly curved faces,
// so we use it as less as possible
isRev = helper.IsReversedSubMesh( TopoDS::Face( aShapeFace ));
const SMESHDS_SubMesh * aSubMeshDSFace = proxyMesh->GetSubMesh( aShapeFace );
if ( !aSubMeshDSFace ) continue;
SMDS_ElemIteratorPtr iteratorElem = aSubMeshDSFace->GetElements();
if ( _quadraticMesh &&
dynamic_cast< const SMESH_ProxyMesh::SubMesh*>( aSubMeshDSFace ))
{
// add medium nodes of proxy triangles to helper (#16843)
while ( iteratorElem->more() )
helper.AddTLinks( static_cast< const SMDS_MeshFace* >( iteratorElem->next() ));
iteratorElem = aSubMeshDSFace->GetElements();
}
while ( iteratorElem->more() ) // loop on elements on a geom face
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
if ( !elem )
error( COMPERR_BAD_INPUT_MESH, "Null element encounters");
if ( elem->NbCornerNodes() != 3 )
error( COMPERR_BAD_INPUT_MESH, "Not triangle element encounters");
elemOrientation[elem->GetID()] = isRev;
} // loop on elements on a face
} // loop on faces of a SOLID or SHELL
{
std::ofstream df(output_file, ios::out|ios::binary);
int size=elemOrientation.size();
df.write((char*)&size, sizeof(int));
for(auto const& [id, orient]:elemOrientation){
df.write((char*)&id, sizeof(vtkIdType));
df.write((char*)&orient, sizeof(bool));
}
}
}
/**
* @brief Compute mesh associate to shape
*
* @param aMesh The mesh
* @param aShape The shape
* @return true fi there are some error
*/
bool NETGENPlugin_NETGEN_3D_Remote::Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape)
{
{
SMESH_MeshLocker myLocker(&aMesh);
SMESH_Hypothesis::Hypothesis_Status hypStatus;
NETGENPlugin_NETGEN_3D::CheckHypothesis(aMesh, aShape, hypStatus);
}
// Temporary folder for run
fs::path tmp_folder = aMesh.tmp_folder / fs::unique_path(fs::path("Volume-%%%%-%%%%"));
fs::create_directories(tmp_folder);
// Using MESH2D generated after all triangles where created.
fs::path mesh_file=aMesh.tmp_folder / fs::path("Mesh2D.med");
fs::path element_orientation_file=tmp_folder / fs::path("element_orientation.dat");
fs::path new_element_file=tmp_folder / fs::path("new_elements.dat");
fs::path tmp_mesh_file=tmp_folder / fs::path("tmp_mesh.med");
// Not used kept for debug
//fs::path output_mesh_file=tmp_folder / fs::path("output_mesh.med");
fs::path shape_file=tmp_folder / fs::path("shape.brep");
fs::path param_file=tmp_folder / fs::path("netgen3d_param.txt");
fs::path log_file=tmp_folder / fs::path("run.log");
fs::path cmd_file=tmp_folder / fs::path("cmd.log");
std::string mesh_name = "MESH";
{
SMESH_MeshLocker myLocker(&aMesh);
//Writing Shape
exportShape(shape_file.string(), aShape);
//Writing hypo
netgen_params aParams;
fillParameters(_hypParameters, aParams);
exportNetgenParams(param_file.string(), aParams);
// Exporting element orientation
exportElementOrientation(aMesh, aShape, element_orientation_file.string());
}
// Calling run_mesher
std::string cmd;
fs::path run_mesher_exe =
fs::path(std::getenv("NETGENPLUGIN_ROOT_DIR"))/
fs::path("bin")/
fs::path("salome")/
#ifdef WIN32
fs::path("NETGENPlugin_Runner.exe");
#else
fs::path("NETGENPlugin_Runner");
#endif
cmd = run_mesher_exe.string() +
" NETGEN3D " + mesh_file.string() + " "
+ shape_file.string() + " "
+ param_file.string() + " "
+ element_orientation_file.string() + " "
+ new_element_file.string() + " "
+ "NONE";
// Writing command in log
{
std::ofstream flog(cmd_file.string());
flog << cmd << endl;
flog << endl;
}
MESSAGE("Running command: ");
MESSAGE(cmd);
// Building arguments for QProcess
QString program = run_mesher_exe.c_str();
QStringList arguments;
arguments << "NETGEN3D";
arguments << mesh_file.c_str();
arguments << shape_file.c_str();
arguments << param_file.c_str();
arguments << element_orientation_file.c_str();
arguments << new_element_file.c_str();
arguments << "NONE";
QString out_file = log_file.c_str();
QProcess myProcess;
myProcess.setStandardOutputFile(out_file);
myProcess.start(program, arguments);
// Waiting for process to finish (argument -1 make it wait until the end of
// the process otherwise it just waits 30 seconds)
myProcess.waitForFinished(-1);
int ret = myProcess.exitStatus();
if(ret != 0){
// Run crahed
std::string msg = "Issue with command: \n";
msg += "See log for more details: " + log_file.string() + "\n";
msg += cmd + "\n";
throw SALOME_Exception(msg);
}
{
SMESH_MeshLocker myLocker(&aMesh);
std::ifstream df(new_element_file.string(), ios::binary);
int Netgen_NbOfNodes;
int Netgen_NbOfNodesNew;
int Netgen_NbOfTetra;
double Netgen_point[3];
int Netgen_tetrahedron[4];
int nodeID;
SMESH_MesherHelper helper(aMesh);
// This function is mandatory for setElementsOnShape to work
helper.IsQuadraticSubMesh(aShape);
helper.SetElementsOnShape( true );
// Number of nodes in intial mesh
df.read((char*) &Netgen_NbOfNodes, sizeof(int));
// Number of nodes added by netgen
df.read((char*) &Netgen_NbOfNodesNew, sizeof(int));
// Filling nodevec (correspondence netgen numbering mesh numbering)
vector< const SMDS_MeshNode* > nodeVec ( Netgen_NbOfNodesNew + 1 );
//vector<int> nodeTmpVec ( Netgen_NbOfNodesNew + 1 );
SMESHDS_Mesh * meshDS = helper.GetMeshDS();
for (int nodeIndex = 1 ; nodeIndex <= Netgen_NbOfNodes; ++nodeIndex )
{
//Id of the point
df.read((char*) &nodeID, sizeof(int));
nodeVec.at(nodeIndex) = meshDS->FindNode(nodeID);
}
// Add new points and update nodeVec
for (int nodeIndex = Netgen_NbOfNodes +1 ; nodeIndex <= Netgen_NbOfNodesNew; ++nodeIndex )
{
df.read((char *) &Netgen_point, sizeof(double)*3);
nodeVec.at(nodeIndex) = helper.AddNode(Netgen_point[0],
Netgen_point[1],
Netgen_point[2]);
}
// Add tetrahedrons
df.read((char*) &Netgen_NbOfTetra, sizeof(int));
for ( int elemIndex = 1; elemIndex <= Netgen_NbOfTetra; ++elemIndex )
{
df.read((char*) &Netgen_tetrahedron, sizeof(int)*4);
helper.AddVolume(
nodeVec.at( Netgen_tetrahedron[0] ),
nodeVec.at( Netgen_tetrahedron[1] ),
nodeVec.at( Netgen_tetrahedron[2] ),
nodeVec.at( Netgen_tetrahedron[3] ));
}
}
return true;
}
/**
* @brief Assign submeshes to compute
*
* @param aSubMesh submesh to add
*/
void NETGENPlugin_NETGEN_3D_Remote::setSubMeshesToCompute(SMESH_subMesh * aSubMesh)
{
SMESH_MeshLocker myLocker(aSubMesh->GetFather());
SMESH_Algo::setSubMeshesToCompute(aSubMesh);
}

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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 : NETGENPlugin_NETGEN_3D_Remote.hxx
// Created : lundi 19 Septembre 2022
// Author : Yoann AUDOUIN (EDF)
// Project : SALOME
//=============================================================================
//
#ifndef _NETGENPlugin_NETGEN_3D_REMOTE_HXX_
#define _NETGENPlugin_NETGEN_3D_REMOTE_HXX_
#include "NETGENPlugin_NETGEN_3D.hxx"
#include <vector>
#include <map>
class StdMeshers_ViscousLayers;
class StdMeshers_MaxElementVolume;
class NETGENPlugin_Hypothesis;
class NETGENPlugin_NetgenLibWrapper;
class netgen_params;
class SMDS_MeshNode;
using namespace std;
class NETGENPLUGIN_EXPORT NETGENPlugin_NETGEN_3D_Remote: public NETGENPlugin_NETGEN_3D
{
public:
NETGENPlugin_NETGEN_3D_Remote(int hypId, SMESH_Gen* gen);
virtual ~NETGENPlugin_NETGEN_3D_Remote();
// Function whould not be used with remote Computing
bool CheckHypothesis (SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
Hypothesis_Status& aStatus) override {(void)aMesh;(void)aShape;aStatus = HYP_OK;return true;};
bool Compute(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape) override;
void setSubMeshesToCompute(SMESH_subMesh * aSubMesh) override;
protected:
void exportElementOrientation(SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
const std::string output_file);
void fillParameters(const NETGENPlugin_Hypothesis* hyp,
netgen_params &aParams);
};
#endif

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// Copyright (C) 2007-2022 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
//
// SMESH SMESH_I : idl implementation based on 'SMESH' unit's classes
// File : NETGENPlugin_NETGEN_3D_Remote_i.cxx
// Author : Yoann AUDOUIN (EDF)
// Module : NETGENPlugin
// $Header$
//
#include "NETGENPlugin_NETGEN_3D_Remote_i.hxx"
#include "SMESH_Gen.hxx"
#include "Utils_CorbaException.hxx"
#include "utilities.h"
using namespace std;
//=============================================================================
/*!
* NETGENPlugin_NETGEN_3D_Remote_i::NETGENPlugin_NETGEN_3D_Remote_i
*
* Constructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_Remote_i::NETGENPlugin_NETGEN_3D_Remote_i( PortableServer::POA_ptr thePOA,
::SMESH_Gen* theGenImpl )
: SALOME::GenericObj_i( thePOA ),
SMESH_Hypothesis_i( thePOA ),
SMESH_Algo_i( thePOA ),
SMESH_3D_Algo_i( thePOA )
{
myBaseImpl = new ::NETGENPlugin_NETGEN_3D_Remote( theGenImpl->GetANewId(),
theGenImpl );
}
//=============================================================================
/*!
* NETGENPlugin_NETGEN_3D_Remote_i::~NETGENPlugin_NETGEN_3D_Remote_i
*
* Destructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_Remote_i::~NETGENPlugin_NETGEN_3D_Remote_i()
{
}
//=============================================================================
/*!
* NETGENPlugin_NETGEN_3D_Remote_i::GetImpl
*
* Get implementation
*/
//=============================================================================
::NETGENPlugin_NETGEN_3D_Remote* NETGENPlugin_NETGEN_3D_Remote_i::GetImpl()
{
return ( ::NETGENPlugin_NETGEN_3D_Remote* )myBaseImpl;
}

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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
//
// SMESH SMESH_I : idl implementation based on 'SMESH' unit's classes
// File : NETGENPlugin_NETGEN_3D_Remote_i.hxx
// Author : Yoann AUDOUIN (EDF)
// Module : NETGENPlugin
// $Header$
//
#ifndef _NETGENPlugin_NETGEN_3D_REMOTE_I_HXX_
#define _NETGENPlugin_NETGEN_3D_REMOTE_I_HXX_
#include "NETGENPlugin_Defs.hxx"
#include <SALOMEconfig.h>
#include CORBA_SERVER_HEADER(NETGENPlugin_Algorithm)
#include "SMESH_3D_Algo_i.hxx"
#include "NETGENPlugin_NETGEN_3D_Remote.hxx"
// ======================================================
// NETGEN 3d algorithm
// ======================================================
class NETGENPLUGIN_EXPORT NETGENPlugin_NETGEN_3D_Remote_i:
public virtual POA_NETGENPlugin::NETGENPlugin_NETGEN_3D_Remote,
public virtual SMESH_3D_Algo_i
{
public:
// Constructor
NETGENPlugin_NETGEN_3D_Remote_i( PortableServer::POA_ptr thePOA,
::SMESH_Gen* theGenImpl );
// Destructor
virtual ~NETGENPlugin_NETGEN_3D_Remote_i();
// Get implementation
::NETGENPlugin_NETGEN_3D_Remote* GetImpl();
};
#endif

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// Copyright (C) 2007-2022 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 : NETGENPlugin_NETGEN_3D_SA.cxx
// Created : lundi 19 Septembre 2022
// Author : Yoann AUDOUIN (CEA)
// Project : SALOME
//=============================================================================
//
//
#include "NETGENPlugin_NETGEN_3D_SA.hxx"
#include "NETGENPlugin_DriverParam.hxx"
#include "NETGENPlugin_Hypothesis.hxx"
#include "StdMeshers_MaxElementVolume.hxx"
#include <SMESH_Gen.hxx>
#include <SMESH_Mesh.hxx>
#include <SMESH_MesherHelper.hxx>
#include <SMESH_DriverShape.hxx>
#include <SMESH_DriverMesh.hxx>
#include <SMESHDS_Mesh.hxx>
#include <boost/filesystem.hpp>
namespace fs = boost::filesystem;
/*
Netgen include files
*/
#ifndef OCCGEOMETRY
#define OCCGEOMETRY
#endif
#include <occgeom.hpp>
#ifdef NETGEN_V5
#include <ngexception.hpp>
#endif
#ifdef NETGEN_V6
#include <core/exception.hpp>
#endif
namespace nglib {
#include <nglib.h>
}
namespace netgen {
NETGENPLUGIN_DLL_HEADER
extern MeshingParameters mparam;
NETGENPLUGIN_DLL_HEADER
extern volatile multithreadt multithread;
}
using namespace nglib;
//=============================================================================
/*!
* Constructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_SA::NETGENPlugin_NETGEN_3D_SA()
: NETGENPlugin_NETGEN_3D(0, new SMESH_Gen())
{
_name = "NETGEN_3D_SA";
}
//=============================================================================
/*!
* Destructor
*/
//=============================================================================
NETGENPlugin_NETGEN_3D_SA::~NETGENPlugin_NETGEN_3D_SA()
{
if(_gen)
delete _gen;
}
/**
* @brief fill plugin hypothesis from the netgen_params structure
*
* @param aParams the structure
* @param gen SMESH_Gen associate with the SA
*/
void NETGENPlugin_NETGEN_3D_SA::fillHyp(netgen_params aParams)
{
if(_gen)
std::cout << "_gen is set" << std::endl;
if(aParams.has_netgen_param){
NETGENPlugin_Hypothesis * hypParameters = new NETGENPlugin_Hypothesis(0, GetGen());
hypParameters->SetMaxSize(aParams.maxh);
hypParameters->SetMinSize(aParams.minh);
hypParameters->SetNbSegPerEdge(aParams.segmentsperedge);
hypParameters->SetGrowthRate(aParams.grading);
hypParameters->SetNbSegPerRadius(aParams.curvaturesafety);
hypParameters->SetSecondOrder(aParams.secondorder);
hypParameters->SetQuadAllowed(aParams.quad);
hypParameters->SetOptimize(aParams.optimize);
hypParameters->SetFineness((NETGENPlugin_Hypothesis::Fineness)aParams.fineness);
hypParameters->SetSurfaceCurvature(aParams.uselocalh);
hypParameters->SetFuseEdges(aParams.merge_solids);
hypParameters->SetChordalErrorEnabled(aParams.chordalError);
if(aParams.optimize){
hypParameters->SetNbSurfOptSteps(aParams.optsteps2d);
hypParameters->SetNbVolOptSteps(aParams.optsteps3d);
}
hypParameters->SetElemSizeWeight(aParams.elsizeweight);
hypParameters->SetWorstElemMeasure(aParams.opterrpow);
hypParameters->SetUseDelauney(aParams.delaunay);
hypParameters->SetCheckOverlapping(aParams.checkoverlap);
hypParameters->SetCheckChartBoundary(aParams.checkchartboundary);
hypParameters->SetMeshSizeFile(aParams.meshsizefilename);
_hypParameters = dynamic_cast< const NETGENPlugin_Hypothesis *> (hypParameters);
}
if(aParams.has_maxelementvolume_hyp){
_hypMaxElementVolume = new StdMeshers_MaxElementVolume(1, GetGen());
_maxElementVolume = aParams.maxElementVolume;
}
// TODO: Handle viscous layer
}
/**
* @brief Write a binary file containing information on the elements/nodes
* created by the mesher
*
* @param nodeVec mapping between the mesh id and the netgen structure id
* @param ngLib Wrapper on netgen library
* @param new_element_file Name of the output file
* @param Netgen_NbOfNodes Number of nodes in the netgen structure
* @return true if there are some error
*/
bool NETGENPlugin_NETGEN_3D_SA::computeFillNewElementFile(
std::vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
std::string new_element_file,
int &Netgen_NbOfNodes
)
{
Ng_Mesh* Netgen_mesh = ngLib.ngMesh();
int Netgen_NbOfNodesNew = Ng_GetNP(Netgen_mesh);
int Netgen_NbOfTetra = Ng_GetNE(Netgen_mesh);
bool isOK = ( Netgen_NbOfTetra > 0 );
if ( isOK && !new_element_file.empty() )
{
std::ofstream df(new_element_file, ios::out|ios::binary);
double Netgen_point[3];
int Netgen_tetrahedron[4];
// Writing nodevec (correspondence 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);
}
}
return false;
}
/**
* @brief Compute mesh associated to shape
*
* @param aShape the shape
* @param aMesh the mesh
* @param aParams netgen_params structure
* @param new_element_file Name of the file containing new element
* @param output_mesh Name of the output mesh (if empty it will not be written)
* @return true if there are some error
*/
bool NETGENPlugin_NETGEN_3D_SA::Compute(
TopoDS_Shape &aShape,
SMESH_Mesh& aMesh,
netgen_params& aParams,
std::string new_element_file,
bool output_mesh)
{
// vector of nodes in which node index == netgen ID
vector< const SMDS_MeshNode* > nodeVec;
NETGENPlugin_NetgenLibWrapper ngLib;
SMESH_MesherHelper helper(aMesh);
int startWith = netgen::MESHCONST_MESHVOLUME;
int endWith = netgen::MESHCONST_OPTVOLUME;
int Netgen_NbOfNodes=0;
// Changing netgen log_file putting it next to new_element_file
fs::path netgen_log_file = fs::path(new_element_file).remove_filename() / fs::path("NETGEN.out");
ngLib.setOutputFile(netgen_log_file.string());
NETGENPlugin_NETGEN_3D::computeFillNgMesh(aMesh, aShape, nodeVec, ngLib, helper, Netgen_NbOfNodes);
netgen::OCCGeometry occgeo;
NETGENPlugin_NETGEN_3D::computePrepareParam(aMesh, ngLib, occgeo, helper, endWith);
NETGENPlugin_NETGEN_3D::computeRunMesher(occgeo, nodeVec, ngLib._ngMesh, ngLib, startWith, endWith);
computeFillNewElementFile(nodeVec, ngLib, new_element_file, Netgen_NbOfNodes);
if(output_mesh)
NETGENPlugin_NETGEN_3D::computeFillMesh(nodeVec, ngLib, helper, Netgen_NbOfNodes);
return false;
}
/**
* @brief Running the mesher on the given files
*
* @param input_mesh_file Mesh file (containing 2D elements)
* @param shape_file Shape file (BREP or STEP format)
* @param hypo_file Ascii file containing the netgen parameters
* @param element_orientation_file Binary file containing the orientation of surface elemnts
* @param new_element_file output file containing info the elements created by the mesher
* @param output_mesh_file output mesh file (if empty it will not be created)
* @return int
*/
int NETGENPlugin_NETGEN_3D_SA::run(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,
const std::string output_mesh_file)
{
_element_orientation_file = element_orientation_file;
std::unique_ptr<SMESH_Mesh> myMesh(_gen->CreateMesh(false));
importMesh(input_mesh_file, *myMesh);
// Importing shape
TopoDS_Shape myShape;
importShape(shape_file, myShape);
// Importing hypothesis
netgen_params myParams;
importNetgenParams(hypo_file, myParams);
fillHyp(myParams);
MESSAGE("Meshing with netgen3d");
int ret = Compute(myShape, *myMesh, myParams,
new_element_file,
!output_mesh_file.empty());
if(ret){
std::cerr << "Meshing failed" << std::endl;
return ret;
}
if(!output_mesh_file.empty()){
std::string meshName = "MESH";
exportMesh(output_mesh_file, *myMesh, meshName);
}
return ret;
}
/**
* @brief Compute the list of already meshed Surface elements and info
* on their orientation and if they are internal
*
* @param aMesh Global Mesh
* @param aShape Shape associated to the mesh
* @param proxyMesh pointer to mesh used fo find the elements
* @param internals information on internal sub shapes
* @param helper helper associated to the mesh
* @param listElements map of surface element associated with
* their orientation and internal status
* @return true if their was some error
*/
bool NETGENPlugin_NETGEN_3D_SA::getSurfaceElements(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_ProxyMesh::Ptr proxyMesh,
NETGENPlugin_Internals &internals,
SMESH_MesherHelper &helper,
std::map<const SMDS_MeshElement*, tuple<bool, bool>, TIDCompare>& listElements
)
{
// To remove compilation warnings
(void) aShape;
(void) proxyMesh;
(void) internals;
(void) helper;
SMESHDS_Mesh* meshDS = aMesh.GetMeshDS();
// Get list of elements + their orientation from element_orientation file
std::map<vtkIdType, bool> elemOrientation;
{
// Setting all element orientation to false if there no element orientation file
if(_element_orientation_file.empty()){
MESSAGE("No element orientation file");
SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
while ( iteratorElem->more() ) // loop on elements on a geom face
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
elemOrientation[elem->GetID()] = false;
}
} else {
MESSAGE("Reading from elements from file: " << _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;
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;
}
}
}
// Adding elements from Mesh
SMDS_ElemIteratorPtr iteratorElem = meshDS->elementsIterator(SMDSAbs_Face);
bool isRev;
bool isIn;
while ( iteratorElem->more() ) // loop on elements on a geom face
{
// check mesh face
const SMDS_MeshElement* elem = iteratorElem->next();
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()];
listElements[elem] = tuple(isRev, false);
}
return false;
}

81
src/NETGENPlugin/NETGENPlugin_NETGEN_3D_SA.hxx Normal file
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@ -0,0 +1,81 @@
// 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 : NETGENPlugin_NETGEN_3D_SA.hxx
// Created : lundi 19 Septembre 2022
// Author : Yoann AUDOUIN (EDF)
// Project : SALOME
//=============================================================================
//
#ifndef _NETGENPlugin_NETGEN_3D_SA_HXX_
#define _NETGENPlugin_NETGEN_3D_SA_HXX_
#include "NETGENPlugin_NETGEN_3D.hxx"
#include <vector>
#include <map>
class NETGENPlugin_NetgenLibWrapper;
class netgen_params;
class SMDS_MeshNode;
using namespace std;
class NETGENPLUGIN_EXPORT NETGENPlugin_NETGEN_3D_SA: public NETGENPlugin_NETGEN_3D
{
public:
NETGENPlugin_NETGEN_3D_SA();
virtual ~NETGENPlugin_NETGEN_3D_SA();
void fillHyp(netgen_params aParams);
bool Compute(TopoDS_Shape &aShape, SMESH_Mesh& aMesh, netgen_params& aParams,
std::string new_element_file, bool output_mesh);
int run(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,
const std::string output_mesh_file);
protected:
bool computeFillNewElementFile(
std::vector< const SMDS_MeshNode* > &nodeVec,
NETGENPlugin_NetgenLibWrapper &ngLib,
std::string new_element_file,
int &Netgen_NbOfNodes);
bool getSurfaceElements(
SMESH_Mesh& aMesh,
const TopoDS_Shape& aShape,
SMESH_ProxyMesh::Ptr proxyMesh,
NETGENPlugin_Internals &internals,
SMESH_MesherHelper &helper,
std::map<const SMDS_MeshElement*, tuple<bool, bool>, TIDCompare>& listElements
) override;
std::string _element_orientation_file="";
};
#endif

94
src/NETGENPlugin/NETGENPlugin_Runner_main.cxx Normal file
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@ -0,0 +1,94 @@
// Copyright (C) 2007-2022 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 : NETGENplugin_Runnner_main.cxx
// Author : Yoann AUDOUIN, EDF
// Module : NETGEN
//
#include "NETGENPlugin_NETGEN_3D_SA.hxx"
#include <stdio.h>
#include <string.h>
#include <iostream>
#include <chrono>
/**
* @brief Main function
*
* @param argc Number of arguments
* @param argv Arguments
*
* @return error code
*/
int main(int argc, char *argv[]){
if(argc!=8||(argc==2 && (strcmp(argv[1], "-h") == 0 || strcmp(argv[1], "--help")==0))){
std::cout << "Error in number of arguments "<< argc-1<<" given expected 7" <<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 " << std::endl;
std::cout << " NEW_ELEMENT_FILE OUTPUT_MESH_FILE" << std::endl;
std::cout << std::endl;
std::cout << " Set argument to NONE to ignore them " << std::endl;
std::cout << std::endl;
std::cout << "Args:" << std::endl;
std::cout << " MESHER: mesher to use from (NETGEN3D, NETGEN2D)" << 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 << " (optional) 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 << " (optional) NEW_ELEMENT_FILE: (out) contains elements and nodes added by the meshing" << std::endl;
std::cout << " (optional) OUTPUT_MESH_FILE: (out) 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];
std::string output_mesh_file=argv[7];
//std::string thing;
//std::cin >> thing;
if (output_mesh_file == "NONE")
output_mesh_file = "";
if (element_orientation_file == "NONE")
element_orientation_file = "";
if (new_element_file == "NONE")
new_element_file = "";
if (mesher=="NETGEN3D"){
NETGENPlugin_NETGEN_3D_SA myplugin;
myplugin.run(input_mesh_file,
shape_file,
hypo_file,
element_orientation_file,
new_element_file,
output_mesh_file);
} else {
std::cerr << "Unknown mesher:" << mesher << std::endl;
}
return 0;
}

3
src/NETGENPlugin/NETGENPlugin_i.cxx
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@ -36,6 +36,7 @@
#include "NETGENPlugin_NETGEN_2D_ONLY_i.hxx"
#include "NETGENPlugin_NETGEN_2D_i.hxx"
#include "NETGENPlugin_NETGEN_3D_i.hxx"
#include "NETGENPlugin_NETGEN_3D_Remote_i.hxx"
#include "NETGENPlugin_SimpleHypothesis_2D_i.hxx"
#include "NETGENPlugin_SimpleHypothesis_3D_i.hxx"
@ -63,6 +64,8 @@ extern "C"
// Algorithms
if (strcmp(aHypName, "NETGEN_3D") == 0)
aCreator = new NETGENPlugin_Creator_i<NETGENPlugin_NETGEN_3D_i>;
else if (strcmp(aHypName, "NETGEN_3D_Remote") == 0)
aCreator = new NETGENPlugin_Creator_i<NETGENPlugin_NETGEN_3D_Remote_i>;
else if (strcmp(aHypName, "NETGEN_2D") == 0)
aCreator = new NETGENPlugin_Creator_i<NETGENPlugin_NETGEN_2D_i>;
else if (strcmp(aHypName, "NETGEN_2D_ONLY") == 0)