Merge branch 'kleontev/42217_horseshoe_with_bodyfitting_after_42002'

This commit is contained in:
NathalieGore 2024-09-02 16:01:02 +02:00
commit ce3633a7df
25 changed files with 9383 additions and 6642 deletions

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@ -37,6 +37,7 @@ SET(SUBDIRS_COMMON
SMESHClient
SMESH_SWIG
StdMeshers
StdMeshers.test
StdMeshers_I
SMESH_PY
Tools

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@ -43,6 +43,7 @@
#include <vtkObjectFactory.h>
#include <vtkShrinkFilter.h>
#include <vtkShrinkPolyData.h>
#include <vtkTriangleFilter.h>
#include <vtkProperty.h>
#include <vtkPolyData.h>
@ -109,6 +110,7 @@ SMESH_DeviceActor
myMergeFilter = vtkMergeFilter::New();
myGeomFilter = VTKViewer_GeometryFilter::New();
myTriangleFilter = vtkTriangleFilter::New();
myTransformFilter = VTKViewer_TransformFilter::New();
@ -153,6 +155,7 @@ SMESH_DeviceActor
myFaceOrientation->Delete();
myGeomFilter->Delete();
myTriangleFilter->Delete();
myTransformFilter->Delete();
@ -251,8 +254,10 @@ SMESH_DeviceActor
anId++; // 3
myGeomFilter->SetInputConnection( myPassFilter[ anId ]->GetOutputPort() );
myTriangleFilter->SetInputConnection(myGeomFilter->GetOutputPort());
anId++; // 4
// myPassFilter[ anId ]->SetInputConnection( myTriangleFilter->GetOutputPort() );
myPassFilter[ anId ]->SetInputConnection( myGeomFilter->GetOutputPort() );
myPassFilter[ anId + 1 ]->SetInputConnection( myPassFilter[ anId ]->GetOutputPort() );

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@ -46,6 +46,7 @@ class vtkLookupTable;
class vtkImplicitBoolean;
class vtkPassThrough;
class vtkPlaneCollection;
class vtkTriangleFilter;
class VTKViewer_Transform;
class VTKViewer_TransformFilter;
@ -182,6 +183,7 @@ class SMESHOBJECT_EXPORT SMESH_DeviceActor: public vtkLODActor{
bool myStoreClippingMapping;
VTKViewer_GeometryFilter *myGeomFilter;
vtkTriangleFilter* myTriangleFilter = nullptr;
VTKViewer_TransformFilter *myTransformFilter;
std::vector<vtkPassThrough*> myPassFilter;

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@ -32,7 +32,7 @@
class SMDS_EXPORT SMDS_FaceOfNodes: public SMDS_CellOfNodes
{
public:
void Print(std::ostream & OS) const;
virtual void Print(std::ostream & OS) const override;
SMDS_FaceOfNodes(const SMDS_MeshNode* node1,
const SMDS_MeshNode* node2,
const SMDS_MeshNode* node3);

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@ -142,7 +142,7 @@ public:
SMDS_Mesh* GetMesh() const;
void Print(std::ostream & OS) const;
virtual void Print(std::ostream & OS) const;
friend SMDS_EXPORT std::ostream & operator <<(std::ostream & OS, const SMDS_MeshElement *);
friend class SMDS_ElementFactory;

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@ -65,7 +65,7 @@ class SMDS_EXPORT SMDS_MeshNode: public SMDS_MeshElement
virtual bool IsMediumNode(const SMDS_MeshNode* /*node*/) const { return false; }
virtual int NbCornerNodes() const { return 1; }
void Print(std::ostream & OS) const;
virtual void Print(std::ostream & OS) const override;
private:

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@ -47,7 +47,7 @@ class SMDS_EXPORT SMDS_PolygonalFaceOfNodes : public SMDS_CellOfNodes
virtual int NbEdges() const;
virtual int NbFaces() const;
virtual void Print (std::ostream & OS) const;
virtual void Print (std::ostream & OS) const override;
virtual const SMDS_MeshNode* GetNode(const int ind) const;

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@ -62,7 +62,7 @@ class SMDS_EXPORT SMDS_VolumeOfNodes: public SMDS_CellOfNodes
const int nbNodes);
~SMDS_VolumeOfNodes();
void Print(std::ostream & OS) const;
virtual void Print(std::ostream & OS) const override;
int NbFaces() const;
int NbNodes() const;
int NbEdges() const;

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@ -47,9 +47,13 @@ SMESH_Hypothesis::SMESH_Hypothesis(int hypId,
_type = PARAM_ALGO;
_shapeType = 0; // to be set by algo with TopAbs_Enum
_param_algo_dim = -1; // to be set by algo parameter
if ( _gen )
{
StudyContextStruct* myStudyContext = gen->GetStudyContext();
myStudyContext->mapHypothesis[hypId] = this;
}
}
//=============================================================================
/*!
@ -107,7 +111,8 @@ int SMESH_Hypothesis::GetShapeType() const
void SMESH_Hypothesis::NotifySubMeshesHypothesisModification()
{
// for all meshes in study
if ( _gen )
{
StudyContextStruct* myStudyContext = _gen->GetStudyContext();
map<int, SMESH_Mesh*>::iterator itm;
for (itm = myStudyContext->mapMesh.begin();
@ -118,6 +123,7 @@ void SMESH_Hypothesis::NotifySubMeshesHypothesisModification()
mesh->NotifySubMeshesHypothesisModification( this );
}
}
}
//=============================================================================
/*!
@ -147,6 +153,8 @@ void SMESH_Hypothesis::SetLibName(const char* theLibName)
//=======================================================================
SMESH_Mesh* SMESH_Hypothesis::GetMeshByPersistentID(int id) const
{
if ( _gen )
{
StudyContextStruct* myStudyContext = _gen->GetStudyContext();
map<int, SMESH_Mesh*>::iterator itm = myStudyContext->mapMesh.begin();
@ -156,5 +164,6 @@ SMESH_Mesh* SMESH_Hypothesis::GetMeshByPersistentID(int id) const
if ( mesh->GetMeshDS()->GetPersistentId() == id )
return mesh;
}
}
return 0;
}

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@ -70,6 +70,8 @@
#include <vtkPolyDataMapper.h>
#include <vtkProperty.h>
#include <vtkCellData.h>
#include <vtkTriangleFilter.h>
#include <vtkGeometryFilter.h>
// Qt includes
#include <QComboBox>
@ -108,6 +110,8 @@ namespace SMESH
SALOME_Actor* myFaceOrientation;
vtkPolyDataMapper* myFaceOrientationDataMapper;
SMESH_FaceOrientationFilter* myFaceOrientationFilter;
vtkSmartPointer<vtkGeometryFilter> myGeometryFilter = nullptr;
vtkSmartPointer<vtkTriangleFilter> myTriangleFilter = nullptr;
public:
TElementSimulation (SalomeApp_Application* theApplication)
@ -120,9 +124,15 @@ namespace SMESH
myGrid = vtkUnstructuredGrid::New();
myGeometryFilter = vtkSmartPointer<vtkGeometryFilter>::New();
myGeometryFilter->SetInputData(myGrid);
myTriangleFilter = vtkSmartPointer<vtkTriangleFilter>::New();
myTriangleFilter->SetInputConnection(myGeometryFilter->GetOutputPort());
// Create and display actor
myMapper = vtkDataSetMapper::New();
myMapper->SetInputData(myGrid);
myMapper->SetInputConnection(myTriangleFilter->GetOutputPort());
myPreviewActor = SALOME_Actor::New();
myPreviewActor->PickableOff();
@ -148,7 +158,7 @@ namespace SMESH
// Orientation of faces
myFaceOrientationFilter = SMESH_FaceOrientationFilter::New();
myFaceOrientationFilter->SetInputData(myGrid);
myFaceOrientationFilter->SetInputConnection(myTriangleFilter->GetOutputPort());
myFaceOrientationDataMapper = vtkPolyDataMapper::New();
myFaceOrientationDataMapper->SetInputConnection(myFaceOrientationFilter->GetOutputPort());
@ -209,6 +219,9 @@ namespace SMESH
myGrid->InsertNextCell(theType,anIds);
anIds->Delete();
myGeometryFilter->Update();
myTriangleFilter->Update();
myGrid->Modified();
SetVisibility(true, theActor->GetFacesOriented(), false);

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@ -0,0 +1,70 @@
# Copyright (C) 2012-2024 CEA, EDF, OPEN CASCADE
#
# 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
#
INCLUDE(tests.set)
SALOME_GENERATE_TESTS_ENVIRONMENT(_test_env)
SET(TEST_INSTALL_DIRECTORY ${SMESH_TEST_DIR}/other)
INCLUDE_DIRECTORIES(
${OpenCASCADE_INCLUDE_DIR}
${Boost_INCLUDE_DIRS}
${MEDCOUPLING_INCLUDE_DIRS}
${CPPUNIT_INCLUDE_DIRS}
${PROJECT_SOURCE_DIR}/src/StdMeshers
${PROJECT_SOURCE_DIR}/src/SMESHUtils
${PROJECT_SOURCE_DIR}/src/SMESH
${PROJECT_SOURCE_DIR}/src/SMESHDS
${PROJECT_SOURCE_DIR}/src/SMDS
${PROJECT_SOURCE_DIR}/src/Controls
)
# additional preprocessor / compiler flags
ADD_DEFINITIONS(
${OpenCASCADE_DEFINITIONS}
${BOOST_DEFINITIONS}
${CPPUNIT_DEFINITIONS}
)
IF(SALOME_SMESH_USE_TBB)
SET(TBB_LIBS ${TBB_LIBRARIES})
ENDIF(SALOME_SMESH_USE_TBB)
FOREACH(_test ${UNIT_TESTS})
GET_FILENAME_COMPONENT(testname ${_test} NAME_WE)
SET(testname "TESTS_${testname}")
add_executable(${_test} ${_test}.cxx)
target_link_libraries(${_test} StdMeshers ${CPPUNIT_LIBRARIES} )
ADD_TEST(NAME ${testname}
COMMAND ${CMAKE_CURRENT_SOURCE_DIR}/${_test} )
SET_TESTS_PROPERTIES(${testname} PROPERTIES ENVIRONMENT "${tests_env}" LABELS "tests")
ENDFOREACH()
IF(WIN32)
FOREACH(_test ${UNIT_TESTS})
INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/${CMAKE_BUILD_TYPE}/${_test}${CMAKE_EXECUTABLE_SUFFIX} PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ DESTINATION ${TEST_INSTALL_DIRECTORY})
ENDFOREACH()
ELSE()
FOREACH(_test ${UNIT_TESTS})
INSTALL(FILES ${CMAKE_CURRENT_BINARY_DIR}/${_test} PERMISSIONS OWNER_EXECUTE OWNER_WRITE OWNER_READ DESTINATION ${TEST_INSTALL_DIRECTORY})
ENDFOREACH()
ENDIF(WIN32)

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@ -0,0 +1,245 @@
// Copyright (C) 2016-2024 CEA, EDF
//
// 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 : HexahedronCanonicalShapesTest.cxx
// Module : SMESH
// Purpose: Implement unit tests for StdMeshers_Cartesian_3D_Hexahedron class to reproduce bugs that manifest in integration tests.
// The main difference between this unit test and integration tests is the fine grained control we have over the class methods and the hability to diagnose/solve bugs before the code goes into production enviroment.
// This test class can be used as reference for the development of future tests in other stdMesh algorithms
#include "StdMeshers_Cartesian_3D_Hexahedron.hxx"
#include "StdMeshers_CartesianParameters3D.hxx"
// CPP TEST
#include <cppunit/TestAssert.h>
// OCC
#include <BRep_Builder.hxx>
#include <BRepTools.hxx>
#include <BRepPrimAPI_MakeBox.hxx>
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepPrimAPI_MakeSphere.hxx>
#include <BRepPrimAPI_MakeCone.hxx>
#include <iostream>
#include <memory>
using namespace StdMeshers::Cartesian3D;
// Helper functions!
// Build Grid
// Require building mesh
// Require building shape.
/*!
* \brief Mock mesh
*/
struct SMESH_Mesh_Test: public SMESH_Mesh
{
SMESH_Mesh_Test() {
_isShapeToMesh = (_id = 0);
_meshDS = new SMESHDS_Mesh( _id, true );
}
};
/*!
* \brief Mock Hypothesis
*/
struct CartesianHypo: public StdMeshers_CartesianParameters3D
{
CartesianHypo() : StdMeshers_CartesianParameters3D(0/*zero hypoId*/, nullptr/*NULL generator*/)
{
}
};
/*!
* \brief Initialize the grid and intesersectors of grid with the geometry
*/
void GridInitAndIntersectWithShape (Grid& grid,
double gridSpacing,
double theSizeThreshold,
const TopoDS_Shape theShape,
TEdge2faceIDsMap& edge2faceIDsMap,
const int theNumOfThreads)
{
// Canonical axes(i,j,k)
double axisDirs[9] = {1.,0.,0.,0.,1.,0.,0.,0.,1.};
std::vector<std::string> grdSpace = { std::to_string(gridSpacing) };
std::vector<double> intPnts;
std::unique_ptr<CartesianHypo> aHypo ( new CartesianHypo() );
aHypo->SetGridSpacing(grdSpace, intPnts, 0 ); // Spacing in dir 0
aHypo->SetGridSpacing(grdSpace, intPnts, 1 ); // Spacing in dir 1
aHypo->SetGridSpacing(grdSpace, intPnts, 2 ); // Spacing in dir 2
aHypo->SetSizeThreshold(theSizeThreshold); // set threshold
aHypo->SetAxisDirs(axisDirs);
grid.GridInitAndInterserctWithShape(theShape, edge2faceIDsMap, aHypo.get(), theNumOfThreads, false);
}
/*!
* \brief Test runner
*/
bool testShape (const TopoDS_Shape theShape,
const bool toAddEdges,
const bool toCreateFaces,
const double theGridSpacing,
const double theSizeThreshold,
const int theNbCreatedExpected)
{
std::unique_ptr<SMESH_Mesh> aMesh( new SMESH_Mesh_Test() );
aMesh->ShapeToMesh( theShape );
SMESH_MesherHelper helper( *aMesh );
Grid grid;
grid._helper = &helper;
grid._toAddEdges = toAddEdges;
grid._toCreateFaces = toCreateFaces;
grid._toConsiderInternalFaces = false;
grid._toUseThresholdForInternalFaces = false;
grid._toUseQuanta = false;
grid._sizeThreshold = theSizeThreshold;
TEdge2faceIDsMap edge2faceIDsMap;
GridInitAndIntersectWithShape( grid, theGridSpacing, theSizeThreshold,
theShape, edge2faceIDsMap, 1 );
SMESH_subMesh * aSubMesh = aMesh->GetSubMesh(theShape);
aSubMesh->DependsOn(); // init sub-meshes
Hexahedron hex( &grid );
int nbAdded = hex.MakeElements( helper, edge2faceIDsMap, 1 );
if (nbAdded != theNbCreatedExpected) {
std::stringstream buffer;
buffer << "Number of computed elements does not match: obtained " << nbAdded << " != expected " << theNbCreatedExpected;
//CPPUNIT_ASSERT_MESSAGE(buffer.str().c_str(), nbAdded == theNbCreatedExpected );
//MESSAGE(buffer.str().c_str());
//CppUnitTestFramework::Logger::WriteMessage(buffer.str().c_str());
std::cerr << buffer.str() << std::endl;
return false;
}
return true;
}
/*!
* \brief Test some primitive shapes
*/
bool testPrimitives()
{
bool isOK = true;
// Test fitting of a box
BRepPrimAPI_MakeBox aMakeBox (10, 20, 30);
aMakeBox.Build();
CPPUNIT_ASSERT_MESSAGE( "Could not create the box!", aMakeBox.IsDone() );
TopoDS_Shape aShape = aMakeBox.Shape();
// Test exact fitting of a box
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/6))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/true, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/6))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/true,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/6))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/5, /*theSizeThreshold*/4, /*theNbCreatedExpected*/48))
isOK = false;
// Test not exact fitting of a box
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/7, /*theSizeThreshold*/4, /*theNbCreatedExpected*/12))
isOK = false;
// Test fitting of a cylinder
gp_Ax2 anAxes (gp::Origin(), gp::DZ());
BRepPrimAPI_MakeCylinder aMakeCyl (anAxes, 20., 30.);
aMakeCyl.Build();
CPPUNIT_ASSERT_MESSAGE( "Could not create the cylinder!", aMakeCyl.IsDone() );
aShape = aMakeCyl.Shape();
// test for different threshold values
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/48))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/2, /*theNbCreatedExpected*/36))
isOK = false;
// Test fitting of a sphere
BRepPrimAPI_MakeSphere aMakeSph (anAxes, 30.);
aMakeSph.Build();
CPPUNIT_ASSERT_MESSAGE( "Could not create the sphere!", aMakeSph.IsDone() );
aShape = aMakeSph.Shape();
// test for different threshold values
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/136))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/2, /*theNbCreatedExpected*/88))
isOK = false;
// Test fitting of a cone
BRepPrimAPI_MakeCone aMakeCon (anAxes, 30., 0., 40.);
aMakeCon.Build();
CPPUNIT_ASSERT_MESSAGE( "Could not create the cone!", aMakeCon.IsDone() );
aShape = aMakeCon.Shape();
// test for different threshold values
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/100, /*theNbCreatedExpected*/72))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/40))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/1.5, /*theNbCreatedExpected*/32))
isOK = false;
// truncated cone
aMakeCon = BRepPrimAPI_MakeCone(anAxes, 30., 15., 20.);
aMakeCon.Build();
CPPUNIT_ASSERT_MESSAGE( "Could not create the cone!", aMakeCon.IsDone() );
aShape = aMakeCon.Shape();
// test for different threshold values
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/100, /*theNbCreatedExpected*/56))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/4, /*theNbCreatedExpected*/36))
isOK = false;
if (!testShape (aShape, /*toAddEdges*/false, /*toCreateFaces*/false,
/*gridSpacing*/10, /*theSizeThreshold*/1.5, /*theNbCreatedExpected*/28))
isOK = false;
return isOK;
}
// Entry point for test
int main()
{
bool isOK = testPrimitives();
return isOK ? 0 : 1;
}

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@ -0,0 +1,203 @@
// Copyright (C) 2016-2024 CEA, EDF
//
// 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 : HexahedronTest.cxx
// Module : SMESH
// Purpose: Implement unit tests for StdMeshers_Cartesian_3D_Hexahedron class to reproduce bugs that manifest in integration tests.
// The main difference between this unit test and integration tests is the fine grained control we have over the class methods and the hability to diagnose/solve bugs before the code goes into production enviroment.
// This test class can be used as reference for the development of future tests in other stdMesh algorithms
#include "StdMeshers_Cartesian_3D_Hexahedron.hxx"
#include "StdMeshers_CartesianParameters3D.hxx"
// CPP TEST
#include <cppunit/TestAssert.h>
// OCC
#include <BRep_Builder.hxx>
#include <BRepTools.hxx>
#include <BRepPrimAPI_MakeBox.hxx>
#include <BRepPrimAPI_MakeCylinder.hxx>
#include <BRepPrimAPI_MakeSphere.hxx>
#include <BRepPrimAPI_MakeCone.hxx>
#include <iostream>
#include <memory>
using namespace StdMeshers::Cartesian3D;
// Helper functions!
// Build Grid
// Require building mesh
// Require building shape.
/*!
* \brief Mock mesh
*/
struct SMESH_Mesh_Test: public SMESH_Mesh
{
SMESH_Mesh_Test() {
_isShapeToMesh = (_id = 0);
_meshDS = new SMESHDS_Mesh( _id, true );
}
};
/*!
* \brief Mock Hypothesis
*/
struct CartesianHypo: public StdMeshers_CartesianParameters3D
{
CartesianHypo() : StdMeshers_CartesianParameters3D(0/*zero hypoId*/, nullptr/*NULL generator*/)
{
}
};
/*!
* \brief Shape loader
*/
void loadBrepShape( std::string shapeName, TopoDS_Shape & shape )
{
BRep_Builder b;
BRepTools::Read(shape, shapeName.c_str(), b);
}
/*!
* \brief Initialize the grid and intesersectors of grid with the geometry
*/
void GridInitAndIntersectWithShape (Grid& grid,
double gridSpacing,
double theSizeThreshold,
const TopoDS_Shape theShape,
TEdge2faceIDsMap& edge2faceIDsMap,
const int theNumOfThreads)
{
// Canonical axes(i,j,k)
double axisDirs[9] = {1.,0.,0., 0.,1.,0., 0.,0.,1.};
std::vector<std::string> grdSpace = { std::to_string(gridSpacing) };
std::vector<double> intPnts;
std::unique_ptr<CartesianHypo> aHypo ( new CartesianHypo() );
aHypo->SetAxisDirs(axisDirs);
aHypo->SetGridSpacing(grdSpace, intPnts, 0 ); // Spacing in dir 0
aHypo->SetGridSpacing(grdSpace, intPnts, 1 ); // Spacing in dir 1
aHypo->SetGridSpacing(grdSpace, intPnts, 2 ); // Spacing in dir 2
aHypo->SetSizeThreshold(theSizeThreshold); // set threshold
grid.GridInitAndInterserctWithShape(theShape, edge2faceIDsMap, aHypo.get(), theNumOfThreads, false);
}
/*!
* \brief Reproduce conditions of TBPERF_GRIDS_PERF_SMESH_M1 test to detect and solve segfault in unit test.
*/
bool testNRTM1()
{
TopoDS_Shape aShape;
loadBrepShape( "data/HexahedronTest/NRTM1.brep", aShape );
CPPUNIT_ASSERT_MESSAGE( "Could not load the brep shape!", !aShape.IsNull() );
const auto numOfCores = std::thread::hardware_concurrency() == 0 ? 1 : std::thread::hardware_concurrency();
std::vector<int> numberOfThreads(numOfCores);
std::iota (std::begin(numberOfThreads), std::end(numberOfThreads), 1);
for (auto nThreads : numberOfThreads )
{
for (size_t i = 0; i < 10 /*trials*/; i++)
{
std::unique_ptr<SMESH_Mesh> aMesh( new SMESH_Mesh_Test() );
aMesh->ShapeToMesh( aShape );
SMESH_MesherHelper helper( *aMesh );
Grid grid;
grid._helper = &helper;
grid._toAddEdges = false;
grid._toCreateFaces = false;
grid._toConsiderInternalFaces = false;
grid._toUseThresholdForInternalFaces = false;
grid._toUseQuanta = false;
grid._sizeThreshold = 4.0;
TEdge2faceIDsMap edge2faceIDsMap;
GridInitAndIntersectWithShape( grid, 1.0, 4.0, aShape, edge2faceIDsMap, nThreads );
SMESH_subMesh * aSubMesh = aMesh->GetSubMesh(aShape);
aSubMesh->DependsOn(); // init sub-meshes
Hexahedron hex( &grid );
int nbAdded = hex.MakeElements( helper, edge2faceIDsMap, nThreads );
CPPUNIT_ASSERT_MESSAGE( "Number of computed elements does not match", nbAdded == 1024 );
}
}
return true;
}
/*!
* \brief Reproduce conditions of TBPERF_GRIDS_PERF_SMESH_J4 test to detect and solve segfault in unit test.
*/
bool testNRTJ4()
{
TopoDS_Shape aShape;
loadBrepShape( "data/HexahedronTest/NRTMJ4.brep", aShape );
CPPUNIT_ASSERT_MESSAGE( "Could not load the brep shape!", !aShape.IsNull() );
const auto numOfCores = std::thread::hardware_concurrency() == 0 ? 1 : std::thread::hardware_concurrency()/2;
std::vector<int> numberOfThreads(numOfCores);
std::iota (std::begin(numberOfThreads), std::end(numberOfThreads), 1);
// Test with face creation
for (auto nThreads : numberOfThreads )
{
for (size_t i = 0; i < 10 /*trials*/; i++)
{
std::unique_ptr<SMESH_Mesh> aMesh( new SMESH_Mesh_Test() );
aMesh->ShapeToMesh( aShape );
SMESH_MesherHelper helper( *aMesh );
Grid grid;
grid._helper = &helper;
grid._toAddEdges = false;
grid._toConsiderInternalFaces = false;
grid._toUseThresholdForInternalFaces = false;
grid._toUseQuanta = false;
double testThreshold = 1.000001;
grid._toCreateFaces = true;
grid._sizeThreshold = testThreshold;
TEdge2faceIDsMap edge2faceIDsMap;
GridInitAndIntersectWithShape( grid, 2.0, testThreshold,
aShape, edge2faceIDsMap, nThreads );
SMESH_subMesh * aSubMesh = aMesh->GetSubMesh(aShape);
aSubMesh->DependsOn(); // init sub-meshes
Hexahedron hex( &grid );
int nbAdded = hex.MakeElements( helper, edge2faceIDsMap, nThreads );
CPPUNIT_ASSERT_MESSAGE( "Number of computed elements does not match", nbAdded == 35150 );
}
}
return true;
}
// Entry point for test
int main()
{
bool isOK = testNRTM1();
if (!testNRTJ4())
isOK = false;
return isOK ? 0 : 1;
}

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@ -0,0 +1,28 @@
# Copyright (C) 2015-2024 CEA, EDF, OPEN CASCADE
#
# 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
#
# The following tests cannot be executed with 'make test' because they use
# external meshing plug-ins.
# On the other hand these tests can be executed with 'salome test'.
# ---------------------------------------------------------------------------
SET(UNIT_TESTS
HexahedronTest
HexahedronCanonicalShapesTest
)

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@ -119,6 +119,8 @@ SET(StdMeshers_HEADERS
StdMeshers_ViscousLayers2D.hxx
StdMeshers_Projection_1D2D.hxx
StdMeshers_CartesianParameters3D.hxx
StdMeshers_Cartesian_3D_Grid.hxx
StdMeshers_Cartesian_3D_Hexahedron.hxx
StdMeshers_Cartesian_3D.hxx
StdMeshers_Cartesian_VL.hxx
StdMeshers_QuadFromMedialAxis_1D2D.hxx
@ -184,6 +186,8 @@ SET(StdMeshers_SOURCES
StdMeshers_ViscousLayers2D.cxx
StdMeshers_Projection_1D2D.cxx
StdMeshers_CartesianParameters3D.cxx
StdMeshers_Cartesian_3D_Grid.cxx
StdMeshers_Cartesian_3D_Hexahedron.cxx
StdMeshers_Cartesian_3D.cxx
StdMeshers_Cartesian_VL.cxx
StdMeshers_Adaptive1D.cxx

View File

@ -361,10 +361,14 @@ void StdMeshers_CartesianParameters3D::ComputeCoordinates(const double x0,
++iCell;
}
}
if (coords.size() < 2)
coords.push_back ( p1 );
else {
const double lastCellLen = coords.back() - coords[ coords.size() - 2 ];
if ( fabs( coords.back() - p1 ) > 0.5 * lastCellLen )
coords.push_back ( p1 );
}
}
// correct coords if a forced point is too close to a neighbor node
if ( forced )

File diff suppressed because it is too large Load Diff

File diff suppressed because it is too large Load Diff

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@ -0,0 +1,702 @@
// Copyright (C) 2016-2024 CEA, EDF
//
// 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 : StdMeshers_Cartesian_3D_Grid.hxx
// Module : SMESH
// Purpose: Make BodyFitting mesh algorithm more modular and testable
//
#ifndef _SMESH_Cartesian_3D_GRID_HXX_
#define _SMESH_Cartesian_3D_GRID_HXX_
#ifdef WITH_TBB
#include <tbb/parallel_for.h>
#endif
#include <utilities.h>
// STD
#include <algorithm>
#include <map>
#include <vector>
#include <memory>
#include <mutex>
#include <thread>
// SMESH
#include "SMESH_StdMeshers.hxx"
#include "StdMeshers_FaceSide.hxx"
#include "StdMeshers_CartesianParameters3D.hxx"
#include <ObjectPool.hxx>
#include <SMDS_LinearEdge.hxx>
#include <SMDS_MeshNode.hxx>
#include <SMDS_VolumeOfNodes.hxx>
#include <SMDS_VolumeTool.hxx>
#include <SMESHDS_Mesh.hxx>
#include <SMESH_Block.hxx>
#include <SMESH_Comment.hxx>
#include <SMESH_ControlsDef.hxx>
#include <SMESH_Mesh.hxx>
#include <SMESH_MeshAlgos.hxx>
#include <SMESH_MeshEditor.hxx>
#include <SMESH_MesherHelper.hxx>
#include <SMESH_subMesh.hxx>
#include <SMESH_subMeshEventListener.hxx>
#include <utilities.h>
#include <Utils_ExceptHandlers.hxx>
#include <GEOMUtils.hxx>
//OCC
#include <BRepAdaptor_Curve.hxx>
#include <BRepAdaptor_Surface.hxx>
#include <BRepBndLib.hxx>
#include <BRepBuilderAPI_Copy.hxx>
#include <BRepBuilderAPI_MakeFace.hxx>
#include <BRepTools.hxx>
#include <BRepTopAdaptor_FClass2d.hxx>
#include <BRep_Builder.hxx>
#include <BRep_Tool.hxx>
#include <Bnd_B3d.hxx>
#include <Bnd_Box.hxx>
#include <ElSLib.hxx>
#include <GCPnts_UniformDeflection.hxx>
#include <Geom2d_BSplineCurve.hxx>
#include <Geom2d_BezierCurve.hxx>
#include <Geom2d_TrimmedCurve.hxx>
#include <GeomAPI_ProjectPointOnSurf.hxx>
#include <GeomLib.hxx>
#include <Geom_BSplineCurve.hxx>
#include <Geom_BSplineSurface.hxx>
#include <Geom_BezierCurve.hxx>
#include <Geom_BezierSurface.hxx>
#include <Geom_RectangularTrimmedSurface.hxx>
#include <Geom_TrimmedCurve.hxx>
#include <IntAna_IntConicQuad.hxx>
#include <IntAna_IntLinTorus.hxx>
#include <IntAna_Quadric.hxx>
#include <IntCurveSurface_TransitionOnCurve.hxx>
#include <IntCurvesFace_Intersector.hxx>
#include <Poly_Triangulation.hxx>
#include <Precision.hxx>
#include <TopExp.hxx>
#include <TopExp_Explorer.hxx>
#include <TopLoc_Location.hxx>
#include <TopTools_DataMapOfShapeInteger.hxx>
#include <TopTools_IndexedMapOfShape.hxx>
#include <TopTools_MapOfShape.hxx>
#include <TopoDS.hxx>
#include <TopoDS_Compound.hxx>
#include <TopoDS_Face.hxx>
#include <TopoDS_TShape.hxx>
#include <gp_Cone.hxx>
#include <gp_Cylinder.hxx>
#include <gp_Lin.hxx>
#include <gp_Pln.hxx>
#include <gp_Pnt2d.hxx>
#include <gp_Sphere.hxx>
#include <gp_Torus.hxx>
// All utility structs used in Grid and hexahedron class will be included here
// Ideally each one of this should define their own testable class
namespace StdMeshers
{
namespace Cartesian3D
{
typedef int TGeomID; // IDs of sub-shapes
typedef TopTools_ShapeMapHasher TShapeHasher; // non-oriented shape hasher
typedef std::array< int, 3 > TIJK;
typedef std::map< TGeomID, std::vector< TGeomID > > TEdge2faceIDsMap;
const TGeomID theUndefID = 1e+9;
//=============================================================================
// Definitions of internal utils
// --------------------------------------------------------------------------
enum Transition {
Trans_TANGENT = IntCurveSurface_Tangent,
Trans_IN = IntCurveSurface_In,
Trans_OUT = IntCurveSurface_Out,
Trans_APEX,
Trans_INTERNAL // for INTERNAL FACE
};
// --------------------------------------------------------------------------
/*!
* \brief Sub-entities of a FACE neighboring its concave VERTEX.
* Help to avoid linking nodes on EDGEs that seem connected
* by the concave FACE but the link actually lies outside the FACE
*/
struct ConcaveFace
{
TGeomID _concaveFace;
TGeomID _edge1, _edge2;
TGeomID _v1, _v2;
ConcaveFace( int f=0, int e1=0, int e2=0, int v1=0, int v2=0 )
: _concaveFace(f), _edge1(e1), _edge2(e2), _v1(v1), _v2(v2) {}
bool HasEdge( TGeomID edge ) const { return edge == _edge1 || edge == _edge2; }
bool HasVertex( TGeomID v ) const { return v == _v1 || v == _v2; }
void SetEdge( TGeomID edge ) { ( _edge1 ? _edge2 : _edge1 ) = edge; }
void SetVertex( TGeomID v ) { ( _v1 ? _v2 : _v1 ) = v; }
};
typedef NCollection_DataMap< TGeomID, ConcaveFace > TConcaveVertex2Face;
// --------------------------------------------------------------------------
/*!
* \brief Container of IDs of SOLID sub-shapes
*/
class Solid // sole SOLID contains all sub-shapes
{
TGeomID _id; // SOLID id
bool _hasInternalFaces;
TConcaveVertex2Face _concaveVertex; // concave VERTEX -> ConcaveFace
public:
virtual ~Solid() {}
virtual bool Contains( TGeomID /*subID*/ ) const { return true; }
virtual bool ContainsAny( const std::vector< TGeomID>& /*subIDs*/ ) const { return true; }
virtual TopAbs_Orientation Orientation( const TopoDS_Shape& s ) const { return s.Orientation(); }
virtual bool IsOutsideOriented( TGeomID /*faceID*/ ) const { return true; }
void SetID( TGeomID id ) { _id = id; }
TGeomID ID() const { return _id; }
void SetHasInternalFaces( bool has ) { _hasInternalFaces = has; }
bool HasInternalFaces() const { return _hasInternalFaces; }
void SetConcave( TGeomID V, TGeomID F, TGeomID E1, TGeomID E2, TGeomID V1, TGeomID V2 )
{ _concaveVertex.Bind( V, ConcaveFace{ F, E1, E2, V1, V2 }); }
bool HasConcaveVertex() const { return !_concaveVertex.IsEmpty(); }
const ConcaveFace* GetConcave( TGeomID V ) const { return _concaveVertex.Seek( V ); }
};
// --------------------------------------------------------------------------
class OneOfSolids : public Solid
{
TColStd_MapOfInteger _subIDs;
TopTools_MapOfShape _faces; // keep FACE orientation
TColStd_MapOfInteger _outFaceIDs; // FACEs of shape_to_mesh oriented outside the SOLID
public:
void Init( const TopoDS_Shape& solid,
TopAbs_ShapeEnum subType,
const SMESHDS_Mesh* mesh );
virtual bool Contains( TGeomID i ) const { return i == ID() || _subIDs.Contains( i ); }
virtual bool ContainsAny( const std::vector< TGeomID>& subIDs ) const
{
for ( size_t i = 0; i < subIDs.size(); ++i ) if ( Contains( subIDs[ i ])) return true;
return false;
}
virtual TopAbs_Orientation Orientation( const TopoDS_Shape& face ) const
{
const TopoDS_Shape& sInMap = const_cast< OneOfSolids* >(this)->_faces.Added( face );
return sInMap.Orientation();
}
virtual bool IsOutsideOriented( TGeomID faceID ) const
{
return faceID == 0 || _outFaceIDs.Contains( faceID );
}
};
// --------------------------------------------------------------------------
/*!
* \brief Hold a vector of TGeomID and clear it at destruction
*/
class GeomIDVecHelder
{
typedef std::vector< TGeomID > TVector;
const TVector& myVec;
bool myOwn;
public:
GeomIDVecHelder( const TVector& idVec, bool isOwner ): myVec( idVec ), myOwn( isOwner ) {}
GeomIDVecHelder( const GeomIDVecHelder& holder ): myVec( holder.myVec ), myOwn( holder.myOwn )
{
const_cast< bool& >( holder.myOwn ) = false;
}
~GeomIDVecHelder() { if ( myOwn ) const_cast<TVector&>( myVec ).clear(); }
size_t size() const { return myVec.size(); }
TGeomID operator[]( size_t i ) const { return i < size() ? myVec[i] : theUndefID; }
bool operator==( const GeomIDVecHelder& other ) const { return myVec == other.myVec; }
bool contain( const TGeomID& id ) const {
return std::find( myVec.begin(), myVec.end(), id ) != myVec.end();
}
TGeomID otherThan( const TGeomID& id ) const {
for ( const TGeomID& id2 : myVec )
if ( id != id2 )
return id2;
return theUndefID;
}
TGeomID oneCommon( const GeomIDVecHelder& other ) const {
TGeomID common = theUndefID;
for ( const TGeomID& id : myVec )
if ( other.contain( id ))
{
if ( common != theUndefID )
return theUndefID;
common = id;
}
return common;
}
};
// --------------------------------------------------------------------------
/*!
* \brief Geom data
*/
struct Geometry
{
TopoDS_Shape _mainShape;
std::vector< std::vector< TGeomID > > _solidIDsByShapeID;// V/E/F ID -> SOLID IDs
Solid _soleSolid;
std::map< TGeomID, OneOfSolids > _solidByID;
TColStd_MapOfInteger _boundaryFaces; // FACEs on boundary of mesh->ShapeToMesh()
TColStd_MapOfInteger _strangeEdges; // EDGEs shared by strange FACEs
TGeomID _extIntFaceID; // pseudo FACE - extension of INTERNAL FACE
TopTools_DataMapOfShapeInteger _shape2NbNodes; // nb of pre-existing nodes on shapes
SMESH::Controls::ElementsOnShape _edgeClassifier;
SMESH::Controls::ElementsOnShape _vertexClassifier;
bool IsOneSolid() const { return _solidByID.size() < 2; }
GeomIDVecHelder GetSolidIDsByShapeID( const std::vector< TGeomID >& shapeIDs ) const;
};
// --------------------------------------------------------------------------
/*!
* \brief Common data of any intersection between a Grid and a shape
*/
struct B_IntersectPoint
{
// This two class members are being updated in a non thread safe way.
// See Add method modify _node and _faceIDs class members dinamicaly during execution
// of Hexahedron.compute() method.
// std::mutex _mutex;
mutable const SMDS_MeshNode* _node;
mutable std::vector< TGeomID > _faceIDs;
B_IntersectPoint(): _node(NULL) {}
bool Add( const std::vector< TGeomID >& fIDs, const SMDS_MeshNode* n=NULL ) const;
TGeomID HasCommonFace( const B_IntersectPoint * other, TGeomID avoidFace=-1 ) const;
size_t GetCommonFaces( const B_IntersectPoint * other, TGeomID * commonFaces ) const;
bool IsOnFace( TGeomID faceID ) const;
virtual ~B_IntersectPoint() {}
};
// --------------------------------------------------------------------------
/*!
* \brief Data of intersection between a GridLine and a TopoDS_Face
*/
struct F_IntersectPoint : public B_IntersectPoint
{
double _paramOnLine;
double _u, _v;
mutable Transition _transition;
mutable size_t _indexOnLine;
bool operator< ( const F_IntersectPoint& o ) const {
return _paramOnLine < o._paramOnLine;
}
};
// --------------------------------------------------------------------------
/*!
* \brief Data of intersection between GridPlanes and a TopoDS_EDGE
*/
struct E_IntersectPoint : public B_IntersectPoint
{
gp_Pnt _point;
double _uvw[3];
TGeomID _shapeID; // ID of EDGE or VERTEX
};
// --------------------------------------------------------------------------
/*!
* \brief A line of the grid and its intersections with 2D geometry
*/
struct GridLine
{
gp_Lin _line;
double _length; // line length
std::multiset< F_IntersectPoint > _intPoints;
void RemoveExcessIntPoints( const double tol );
TGeomID GetSolidIDBefore( std::multiset< F_IntersectPoint >::iterator ip,
const TGeomID prevID,
const Geometry& geom);
};
// --------------------------------------------------------------------------
/*!
* \brief Planes of the grid used to find intersections of an EDGE with a hexahedron
*/
struct GridPlanes
{
gp_XYZ _zNorm;
std::vector< gp_XYZ > _origins; // origin points of all planes in one direction
std::vector< double > _zProjs; // projections of origins to _zNorm
};
// --------------------------------------------------------------------------
/*!
* \brief Iterator on the parallel grid lines of one direction
*/
struct LineIndexer
{
size_t _size [3];
size_t _curInd[3];
size_t _iVar1, _iVar2, _iConst;
std::string _name1, _name2, _nameConst;
LineIndexer() {}
LineIndexer( size_t sz1, size_t sz2, size_t sz3,
size_t iv1, size_t iv2, size_t iConst,
const std::string& nv1, const std::string& nv2, const std::string& nConst )
{
_size[0] = sz1; _size[1] = sz2; _size[2] = sz3;
_curInd[0] = _curInd[1] = _curInd[2] = 0;
_iVar1 = iv1; _iVar2 = iv2; _iConst = iConst;
_name1 = nv1; _name2 = nv2; _nameConst = nConst;
}
size_t I() const { return _curInd[0]; }
size_t J() const { return _curInd[1]; }
size_t K() const { return _curInd[2]; }
void SetIJK( size_t i, size_t j, size_t k )
{
_curInd[0] = i; _curInd[1] = j; _curInd[2] = k;
}
void SetLineIndex(size_t i)
{
_curInd[_iVar2] = i / _size[_iVar1];
_curInd[_iVar1] = i % _size[_iVar1];
}
void operator++()
{
if ( ++_curInd[_iVar1] == _size[_iVar1] )
_curInd[_iVar1] = 0, ++_curInd[_iVar2];
}
bool More() const { return _curInd[_iVar2] < _size[_iVar2]; }
size_t LineIndex () const { return _curInd[_iVar1] + _curInd[_iVar2]* _size[_iVar1]; }
size_t LineIndex10 () const { return (_curInd[_iVar1] + 1 ) + _curInd[_iVar2]* _size[_iVar1]; }
size_t LineIndex01 () const { return _curInd[_iVar1] + (_curInd[_iVar2] + 1 )* _size[_iVar1]; }
size_t LineIndex11 () const { return (_curInd[_iVar1] + 1 ) + (_curInd[_iVar2] + 1 )* _size[_iVar1]; }
void SetIndexOnLine (size_t i) { _curInd[ _iConst ] = i; }
bool IsValidIndexOnLine (size_t i) const { return i < _size[ _iConst ]; }
size_t NbLines() const { return _size[_iVar1] * _size[_iVar2]; }
};
class Tools
{
public:
Tools() = delete;
//================================================================================
/*!
* \brief computes exact bounding box with axes parallel to given ones
*/
//================================================================================
static void GetExactBndBox( const std::vector< TopoDS_Shape >& faceVec, const double* axesDirs, Bnd_Box& shapeBox );
};
class STDMESHERS_EXPORT Grid
{
public:
std::vector< double > _coords[3]; // coordinates of grid nodes
gp_XYZ _axes [3]; // axis directions
std::vector< GridLine > _lines [3]; // in 3 directions
double _tol, _minCellSize;
gp_XYZ _origin;
gp_Mat _invB; // inverted basis of _axes
// index shift within _nodes of nodes of a cell from the 1st node
int _nodeShift[8];
std::vector< const SMDS_MeshNode* > _nodes; // mesh nodes at grid nodes
std::vector< const SMDS_MeshNode* > _allBorderNodes; // mesh nodes between the bounding box and the geometry boundary
std::vector< const F_IntersectPoint* > _gridIntP; // grid node intersection with geometry
ObjectPool< E_IntersectPoint > _edgeIntPool; // intersections with EDGEs
ObjectPool< F_IntersectPoint > _extIntPool; // intersections with extended INTERNAL FACEs
//list< E_IntersectPoint > _edgeIntP; // intersections with EDGEs
Geometry _geometry;
bool _toAddEdges;
bool _toCreateFaces;
bool _toConsiderInternalFaces;
bool _toUseThresholdForInternalFaces;
double _sizeThreshold;
bool _toUseQuanta;
double _quanta;
SMESH_MesherHelper* _helper;
size_t CellIndex( size_t i, size_t j, size_t k ) const
{
return i + j*(_coords[0].size()-1) + k*(_coords[0].size()-1)*(_coords[1].size()-1);
}
size_t NodeIndex( size_t i, size_t j, size_t k ) const
{
return i + j*_coords[0].size() + k*_coords[0].size()*_coords[1].size();
}
size_t NodeIndex( const TIJK& ijk ) const
{
return NodeIndex( ijk[0], ijk[1], ijk[2] );
}
size_t NodeIndexDX() const { return 1; }
size_t NodeIndexDY() const { return _coords[0].size(); }
size_t NodeIndexDZ() const { return _coords[0].size() * _coords[1].size(); }
LineIndexer GetLineIndexer(size_t iDir) const;
size_t GetLineDir( const GridLine* line, size_t & index ) const;
E_IntersectPoint* Add( const E_IntersectPoint& ip )
{
E_IntersectPoint* eip = _edgeIntPool.getNew();
*eip = ip;
return eip;
}
void Remove( E_IntersectPoint* eip ) { _edgeIntPool.destroy( eip ); }
TGeomID ShapeID( const TopoDS_Shape& s ) const;
const TopoDS_Shape& Shape( TGeomID id ) const;
TopAbs_ShapeEnum ShapeType( TGeomID id ) const { return Shape(id).ShapeType(); }
void InitGeometry( const TopoDS_Shape& theShape );
void InitClassifier( const TopoDS_Shape& mainShape,
TopAbs_ShapeEnum shapeType,
SMESH::Controls::ElementsOnShape& classifier );
void GetEdgesToImplement( std::map< TGeomID, std::vector< TGeomID > > & edge2faceMap,
const TopoDS_Shape& shape,
const std::vector< TopoDS_Shape >& faces );
void SetSolidFather( const TopoDS_Shape& s, const TopoDS_Shape& theShapeToMesh );
bool IsShared( TGeomID faceID ) const;
bool IsAnyShared( const std::vector< TGeomID >& faceIDs ) const;
bool IsInternal( TGeomID faceID ) const {
return ( faceID == PseudoIntExtFaceID() ||
Shape( faceID ).Orientation() == TopAbs_INTERNAL ); }
bool IsSolid( TGeomID shapeID ) const {
if ( _geometry.IsOneSolid() ) return _geometry._soleSolid.ID() == shapeID;
else return _geometry._solidByID.count( shapeID ); }
bool IsStrangeEdge( TGeomID id ) const { return _geometry._strangeEdges.Contains( id ); }
TGeomID PseudoIntExtFaceID() const { return _geometry._extIntFaceID; }
Solid* GetSolid( TGeomID solidID = 0 );
Solid* GetOneOfSolids( TGeomID solidID );
const std::vector< TGeomID > & GetSolidIDs( TGeomID subShapeID ) const;
bool IsCorrectTransition( TGeomID faceID, const Solid* solid );
bool IsBoundaryFace( TGeomID face ) const { return _geometry._boundaryFaces.Contains( face ); }
void SetOnShape( const SMDS_MeshNode* n, const F_IntersectPoint& ip,
TopoDS_Vertex* vertex = nullptr, bool unset = false );
void UpdateFacesOfVertex( const B_IntersectPoint& ip, const TopoDS_Vertex& vertex );
bool IsToCheckNodePos() const { return !_toAddEdges && _toCreateFaces; }
bool IsToRemoveExcessEntities() const { return !_toAddEdges; }
void SetCoordinates(const std::vector<double>& xCoords,
const std::vector<double>& yCoords,
const std::vector<double>& zCoords,
const double* axesDirs,
const Bnd_Box& bndBox );
void ComputeUVW(const gp_XYZ& p, double uvw[3]);
void ComputeNodes(SMESH_MesherHelper& helper);
bool GridInitAndInterserctWithShape( const TopoDS_Shape& theShape,
std::map< TGeomID, std::vector< TGeomID > >& edge2faceIDsMap,
const StdMeshers_CartesianParameters3D* hyp,
const int numOfThreads,
bool computeCanceled );
};
// Implement parallel computation of Hexa with c++ thread implementation
template<typename Iterator, class Function>
void parallel_for(const Iterator& first, const Iterator& last, Function&& f, const unsigned int nthreads = 1)
{
MESSAGE("Start parallel computation of Hexa with c++ threads...");
assert(nthreads > 0);
const unsigned int numTasksTotal = last - first;
std::vector<std::thread> threads;
Iterator it = first;
MESSAGE("Number of elements to compute: " << numTasksTotal << "; num of threads: " << nthreads);
// Distribute tasks among threads
if (numTasksTotal <= nthreads)
{
// A simple case - just one task executed in one thread.
// TODO: check if it's faster to do it sequentially
threads.reserve(numTasksTotal);
for (; it < last; ++it)
{
threads.emplace_back(f, std::ref(*it));
}
// This line for debug in sequential mode
// std::for_each(it, last, f);
}
else
{
// Calculate how to distribute elements among threads evenly
const unsigned int numTasksInThread = numTasksTotal / nthreads;
MESSAGE("Number of tasks in thread: " << numTasksInThread);
// Store the numbers of tasks per thread
std::vector<unsigned int> distTasksInThreads(nthreads, numTasksInThread);
// Distribute a remainder among saved numbers
const unsigned int remainder = numTasksTotal % nthreads;
MESSAGE("Remainder of tasks " << remainder << " will be evenly distributed among threads");
for (unsigned int i = 0; i < remainder; ++i)
{
++distTasksInThreads[i];
}
// Create threads for each number of tasks
threads.reserve(nthreads);
for (const auto i : distTasksInThreads)
{
Iterator curLast = it + i;
// Pass iterators by value and the function by reference!
auto lambda = [=,&f](){ std::for_each(it, curLast, f); };
// Create a thread
threads.emplace_back(lambda);
// Advance iterator to the next step
it = curLast;
}
}
std::for_each(threads.begin(), threads.end(), [](std::thread& x){ x.join(); });
MESSAGE("Parallel computation was finished successfully");
}
// --------------------------------------------------------------------------
/*!
* \brief Intersector of TopoDS_Face with all GridLine's
*/
struct FaceGridIntersector
{
TopoDS_Face _face;
TGeomID _faceID;
Grid* _grid;
Bnd_Box _bndBox;
IntCurvesFace_Intersector* _surfaceInt;
std::vector< std::pair< GridLine*, F_IntersectPoint > > _intersections;
FaceGridIntersector(): _grid(0), _surfaceInt(0) {}
void Intersect();
void StoreIntersections()
{
for ( size_t i = 0; i < _intersections.size(); ++i )
{
std::multiset< F_IntersectPoint >::iterator ip =
_intersections[i].first->_intPoints.insert( _intersections[i].second );
ip->_faceIDs.reserve( 1 );
ip->_faceIDs.push_back( _faceID );
}
}
const Bnd_Box& GetFaceBndBox()
{
GetCurveFaceIntersector();
return _bndBox;
}
IntCurvesFace_Intersector* GetCurveFaceIntersector()
{
if ( !_surfaceInt )
{
_surfaceInt = new IntCurvesFace_Intersector( _face, Precision::PConfusion() );
_bndBox = _surfaceInt->Bounding();
if ( _bndBox.IsVoid() )
BRepBndLib::Add (_face, _bndBox);
}
return _surfaceInt;
}
#ifdef WITH_TBB
bool IsThreadSafe(std::set< const Standard_Transient* >& noSafeTShapes) const;
#endif
};
#ifdef WITH_TBB
// --------------------------------------------------------------------------
/*!
* \brief Structure intersecting certain nb of faces with GridLine's in one thread
*/
struct ParallelIntersector
{
std::vector< FaceGridIntersector >& _faceVec;
ParallelIntersector( std::vector< FaceGridIntersector >& faceVec): _faceVec(faceVec){}
void operator() ( const tbb::blocked_range<size_t>& r ) const
{
for ( size_t i = r.begin(); i != r.end(); ++i )
_faceVec[i].Intersect();
}
};
#endif
template<typename Type>
void computeGridIntersection( Type faceGridIntersector )
{
faceGridIntersector.Intersect();
}
// --------------------------------------------------------------------------
/*!
* \brief Intersector of a surface with a GridLine
*/
struct FaceLineIntersector
{
double _tol;
double _u, _v, _w; // params on the face and the line
Transition _transition; // transition at intersection (see IntCurveSurface.cdl)
Transition _transIn, _transOut; // IN and OUT transitions depending of face orientation
gp_Pln _plane;
gp_Cylinder _cylinder;
gp_Cone _cone;
gp_Sphere _sphere;
gp_Torus _torus;
IntCurvesFace_Intersector* _surfaceInt;
std::vector< F_IntersectPoint > _intPoints;
void IntersectWithPlane (const GridLine& gridLine);
void IntersectWithCylinder(const GridLine& gridLine);
void IntersectWithCone (const GridLine& gridLine);
void IntersectWithSphere (const GridLine& gridLine);
void IntersectWithTorus (const GridLine& gridLine);
void IntersectWithSurface (const GridLine& gridLine);
/*
* Return true if (_u,_v) is on the face
*/
bool UVIsOnFace() const
{
TopAbs_State state = _surfaceInt->ClassifyUVPoint(gp_Pnt2d( _u,_v ));
return ( state == TopAbs_IN || state == TopAbs_ON );
}
void addIntPoint(const bool toClassify=true);
bool isParamOnLineOK( const double linLength )
{
return -_tol < _w && _w < linLength + _tol;
}
FaceLineIntersector():_surfaceInt(0) {}
~FaceLineIntersector() { if (_surfaceInt ) delete _surfaceInt; _surfaceInt = 0; }
};
} // end namespace Cartesian3D
} // end namespace StdMeshers
#endif

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// Copyright (C) 2016-2024 CEA, EDF
//
// 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 : StdMeshers_Cartesian_3D_Hexahedron.hxx
// Module : SMESH
// Purpose: Make BodyFitting mesh algorithm more modular and testable
//
#ifndef _SMESH_Cartesian_3D_HEXAHEDRON_HXX_
#define _SMESH_Cartesian_3D_HEXAHEDRON_HXX_
// BOOST
#include <boost/container/flat_map.hpp>
// STD
#include <utilities.h>
#include <vector>
// SMESH
#include "SMESH_StdMeshers.hxx"
#include "StdMeshers_Cartesian_3D_Grid.hxx"
namespace StdMeshers
{
namespace Cartesian3D
{
// --------------------------------------------------------------------------
/*!
* \brief Return cells sharing a link
*/
struct CellsAroundLink
{
int _iDir;
int _dInd[4][3];
size_t _nbCells[3];
int _i,_j,_k;
StdMeshers::Cartesian3D::Grid* _grid;
CellsAroundLink( StdMeshers::Cartesian3D::Grid* grid, int iDir ):
_iDir( iDir ),
_dInd{ {0,0,0}, {0,0,0}, {0,0,0}, {0,0,0} },
_nbCells{ grid->_coords[0].size() - 1,
grid->_coords[1].size() - 1,
grid->_coords[2].size() - 1 },
_grid( grid )
{
const int iDirOther[3][2] = {{ 1,2 },{ 0,2 },{ 0,1 }};
_dInd[1][ iDirOther[iDir][0] ] = -1;
_dInd[2][ iDirOther[iDir][1] ] = -1;
_dInd[3][ iDirOther[iDir][0] ] = -1; _dInd[3][ iDirOther[iDir][1] ] = -1;
}
void Init( int i, int j, int k, int link12 = 0 )
{
int iL = link12 % 4;
_i = i - _dInd[iL][0];
_j = j - _dInd[iL][1];
_k = k - _dInd[iL][2];
}
bool GetCell( int iL, int& i, int& j, int& k, int& cellIndex, int& linkIndex )
{
i = _i + _dInd[iL][0];
j = _j + _dInd[iL][1];
k = _k + _dInd[iL][2];
if ( i < 0 || i >= (int)_nbCells[0] ||
j < 0 || j >= (int)_nbCells[1] ||
k < 0 || k >= (int)_nbCells[2] )
return false;
cellIndex = _grid->CellIndex( i,j,k );
linkIndex = iL + _iDir * 4;
return true;
}
};
// --------------------------------------------------------------------------
/*!
* \brief Class representing topology of the hexahedron and creating a mesh
* volume basing on analysis of hexahedron intersection with geometry
*/
class STDMESHERS_EXPORT Hexahedron
{
// --------------------------------------------------------------------------------
struct _Face;
struct _Link;
enum IsInternalFlag { IS_NOT_INTERNAL, IS_INTERNAL, IS_CUT_BY_INTERNAL_FACE };
// --------------------------------------------------------------------------------
struct _Node //!< node either at a hexahedron corner or at intersection
{
const SMDS_MeshNode* _node; // mesh node at hexahedron corner
const SMDS_MeshNode* _boundaryCornerNode; // missing mesh node due to hex truncation on the boundary
const StdMeshers::Cartesian3D::B_IntersectPoint* _intPoint;
const _Face* _usedInFace;
char _isInternalFlags;
_Node(const SMDS_MeshNode* n=0, const StdMeshers::Cartesian3D::B_IntersectPoint* ip=0)
:_node(n), _boundaryCornerNode(0), _intPoint(ip), _usedInFace(0), _isInternalFlags(0) {}
const SMDS_MeshNode* Node() const
{ return ( _intPoint && _intPoint->_node ) ? _intPoint->_node : _node; }
const SMDS_MeshNode* BoundaryNode() const
{ return _node ? _node : _boundaryCornerNode; }
const StdMeshers::Cartesian3D::E_IntersectPoint* EdgeIntPnt() const
{ return static_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _intPoint ); }
const StdMeshers::Cartesian3D::F_IntersectPoint* FaceIntPnt() const
{ return static_cast< const StdMeshers::Cartesian3D::F_IntersectPoint* >( _intPoint ); }
const std::vector< StdMeshers::Cartesian3D::TGeomID >& faces() const { return _intPoint->_faceIDs; }
StdMeshers::Cartesian3D::TGeomID face(size_t i) const { return _intPoint->_faceIDs[ i ]; }
void SetInternal( IsInternalFlag intFlag ) { _isInternalFlags |= intFlag; }
bool IsCutByInternal() const { return _isInternalFlags & IS_CUT_BY_INTERNAL_FACE; }
bool IsUsedInFace( const _Face* polygon = 0 )
{
return polygon ? ( _usedInFace == polygon ) : bool( _usedInFace );
}
StdMeshers::Cartesian3D::TGeomID IsLinked( const StdMeshers::Cartesian3D::B_IntersectPoint* other,
StdMeshers::Cartesian3D::TGeomID avoidFace=-1 ) const // returns id of a common face
{
return _intPoint ? _intPoint->HasCommonFace( other, avoidFace ) : 0;
}
bool IsOnFace( StdMeshers::Cartesian3D::TGeomID faceID ) const // returns true if faceID is found
{
return _intPoint ? _intPoint->IsOnFace( faceID ) : false;
}
size_t GetCommonFaces( const StdMeshers::Cartesian3D::B_IntersectPoint * other,
StdMeshers::Cartesian3D::TGeomID* common ) const
{
return _intPoint && other ? _intPoint->GetCommonFaces( other, common ) : 0;
}
gp_Pnt Point() const
{
if ( const SMDS_MeshNode* n = Node() )
return SMESH_NodeXYZ( n );
if ( const StdMeshers::Cartesian3D::E_IntersectPoint* eip =
dynamic_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _intPoint ))
return eip->_point;
return gp_Pnt( 1e100, 0, 0 );
}
StdMeshers::Cartesian3D::TGeomID ShapeID() const
{
if ( const StdMeshers::Cartesian3D::E_IntersectPoint* eip =
dynamic_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _intPoint ))
return eip->_shapeID;
return 0;
}
void Add( const StdMeshers::Cartesian3D::E_IntersectPoint* ip );
void clear();
friend std::ostream& operator<<(std::ostream& os, const _Node& node)
{
if (node._node)
{
os << "Node at hexahedron corner: ";
node._node->Print(os);
}
else if (node._intPoint && node._intPoint->_node)
{
os << "Node at intersection point: ";
node._intPoint->_node->Print(os); // intersection point
}
else
os << "mesh node is null\n";
return os;
}
};
// --------------------------------------------------------------------------------
struct _Link // link connecting two _Node's
{
static const std::size_t nodesNum = 2;
_Node* _nodes[nodesNum];
_Face* _faces[nodesNum]; // polygons sharing a link
std::vector< const StdMeshers::Cartesian3D::F_IntersectPoint* > _fIntPoints; // GridLine intersections with FACEs
std::vector< _Node* > _fIntNodes; // _Node's at _fIntPoints
std::vector< _Link > _splits;
_Link(): _nodes{ 0, 0 }, _faces{ 0, 0 } {}
void clear();
friend std::ostream& operator<<(std::ostream& os, const _Link& link)
{
os << "Link:\n";
for (std::size_t i = 0; i < nodesNum; ++i)
{
if (link._nodes[i])
os << *link._nodes[i];
else
os << "link node with index " << i << " is null\n";
}
os << "_fIntPoints: " << link._fIntPoints.size() << '\n';
os << "_fIntNodes: " << link._fIntNodes.size() << '\n';
os << "_splits: " << link._splits.size() << '\n';
return os;
}
};
// --------------------------------------------------------------------------------
struct _OrientedLink
{
_Link* _link;
bool _reverse;
_OrientedLink( _Link* link=0, bool reverse=false ): _link(link), _reverse(reverse) {}
void Reverse() { _reverse = !_reverse; }
size_t NbResultLinks() const { return _link->_splits.size(); }
_OrientedLink ResultLink(int i) const
{
return _OrientedLink(&_link->_splits[_reverse ? NbResultLinks()-i-1 : i],_reverse);
}
_Node* FirstNode() const { return _link->_nodes[ _reverse ]; }
_Node* LastNode() const { return _link->_nodes[ !_reverse ]; }
operator bool() const { return _link; }
// returns supporting FACEs
std::vector< StdMeshers::Cartesian3D::TGeomID > GetNotUsedFaces
(const std::set<StdMeshers::Cartesian3D::TGeomID>& usedIDs ) const
{
std::vector< StdMeshers::Cartesian3D::TGeomID > faces;
const StdMeshers::Cartesian3D::B_IntersectPoint *ip0, *ip1;
if (( ip0 = _link->_nodes[0]->_intPoint ) &&
( ip1 = _link->_nodes[1]->_intPoint ))
{
for ( size_t i = 0; i < ip0->_faceIDs.size(); ++i )
if ( ip1->IsOnFace ( ip0->_faceIDs[i] ) &&
!usedIDs.count( ip0->_faceIDs[i] ) )
faces.push_back( ip0->_faceIDs[i] );
}
return faces;
}
bool HasEdgeNodes() const
{
return ( dynamic_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _link->_nodes[0]->_intPoint ) ||
dynamic_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _link->_nodes[1]->_intPoint ));
}
int NbFaces() const
{
return !_link->_faces[0] ? 0 : 1 + bool( _link->_faces[1] );
}
void AddFace( _Face* f )
{
if ( _link->_faces[0] ) {
_link->_faces[1] = f;
}
else {
_link->_faces[0] = f;
_link->_faces[1] = 0;
}
}
void RemoveFace( const _Face* f )
{
if ( !_link->_faces[0] ) return;
if ( _link->_faces[1] == f ) {
_link->_faces[1] = 0;
}
else if ( _link->_faces[0] == f ) {
_link->_faces[0] = 0;
if ( _link->_faces[1] ) {
_link->_faces[0] = _link->_faces[1];
_link->_faces[1] = 0;
}
}
}
friend std::ostream& operator<<(std::ostream& os, const _OrientedLink& link)
{
if (link._link)
os << "Oriented " << *link._link;
else
os << "Oriented link is null\n";
return os;
}
};
// --------------------------------------------------------------------------------
struct _SplitIterator //! set to _hexLinks splits on one side of INTERNAL FACEs
{
struct _Split // data of a link split
{
int _linkID; // hex link ID
_Node* _nodes[2];
int _iCheckIteration; // iteration where split is tried as Hexahedron split
_Link* _checkedSplit; // split set to hex links
bool _isUsed; // used in a volume
_Split( _Link & split, int iLink ):
_linkID( iLink ), _nodes{ split._nodes[0], split._nodes[1] },
_iCheckIteration( 0 ), _isUsed( false )
{}
bool IsCheckedOrUsed( bool used ) const { return used ? _isUsed : _iCheckIteration > 0; }
};
_Link* _hexLinks;
std::vector< _Split > _splits;
int _iterationNb;
size_t _nbChecked;
size_t _nbUsed;
std::vector< _Node* > _freeNodes; // nodes reached while composing a split set
_SplitIterator( _Link* hexLinks ):
_hexLinks( hexLinks ), _iterationNb(0), _nbChecked(0), _nbUsed(0)
{
_freeNodes.reserve( 12 );
_splits.reserve( 24 );
for ( int iL = 0; iL < 12; ++iL )
for ( size_t iS = 0; iS < _hexLinks[ iL ]._splits.size(); ++iS )
_splits.emplace_back( _hexLinks[ iL ]._splits[ iS ], iL );
Next();
}
bool More() const { return _nbUsed < _splits.size(); }
bool Next();
};
// --------------------------------------------------------------------------------
struct _Face
{
SMESH_Block::TShapeID _name;
std::vector< _OrientedLink > _links; // links on GridLine's
std::vector< _Link > _polyLinks; // links added to close a polygonal face
std::vector< _Node* > _eIntNodes; // nodes at intersection with EDGEs
_Face():_name( SMESH_Block::ID_NONE )
{}
bool IsPolyLink( const _OrientedLink& ol )
{
return _polyLinks.empty() ? false :
( &_polyLinks[0] <= ol._link && ol._link <= &_polyLinks.back() );
}
void AddPolyLink(_Node* n0, _Node* n1, _Face* faceToFindEqual=0)
{
if ( faceToFindEqual && faceToFindEqual != this ) {
for ( size_t iL = 0; iL < faceToFindEqual->_polyLinks.size(); ++iL )
if ( faceToFindEqual->_polyLinks[iL]._nodes[0] == n1 &&
faceToFindEqual->_polyLinks[iL]._nodes[1] == n0 )
{
_links.push_back
( _OrientedLink( & faceToFindEqual->_polyLinks[iL], /*reverse=*/true ));
return;
}
}
_Link l;
l._nodes[0] = n0;
l._nodes[1] = n1;
_polyLinks.push_back( l );
_links.push_back( _OrientedLink( &_polyLinks.back() ));
}
friend std::ostream& operator<<(std::ostream& os, const _Face& face)
{
os << "Face " << face._name << '\n';
os << "Links on GridLines: \n";
for (const auto& link : face._links)
{
os << link;
}
os << "Links added to close a polygonal face: \n";
for (const auto& link : face._polyLinks)
{
os << link;
}
os << "Nodes at intersection with EDGEs: \n";
for (const auto node : face._eIntNodes)
{
if (node)
{
os << *node;
}
}
return os;
}
};
// --------------------------------------------------------------------------------
struct _volumeDef // holder of nodes of a volume mesh element
{
typedef void* _ptr;
struct _nodeDef
{
const SMDS_MeshNode* _node; // mesh node at hexahedron corner
const StdMeshers::Cartesian3D::B_IntersectPoint* _intPoint;
_nodeDef(): _node(0), _intPoint(0) {}
_nodeDef( _Node* n ): _node( n->_node), _intPoint( n->_intPoint ) {}
const SMDS_MeshNode* Node() const
{ return ( _intPoint && _intPoint->_node ) ? _intPoint->_node : _node; }
const StdMeshers::Cartesian3D::E_IntersectPoint* EdgeIntPnt() const
{ return static_cast< const StdMeshers::Cartesian3D::E_IntersectPoint* >( _intPoint ); }
_ptr Ptr() const { return Node() ? (_ptr) Node() : (_ptr) EdgeIntPnt(); }
bool operator==(const _nodeDef& other ) const { return Ptr() == other.Ptr(); }
friend std::ostream& operator<<(std::ostream& os, const _nodeDef& node)
{
if (node._node)
{
os << "Node at hexahedron corner: ";
node._node->Print(os);
}
else if (node._intPoint && node._intPoint->_node)
{
os << "Node at intersection point: ";
node._intPoint->_node->Print(os); // intersection point
}
else
os << "mesh node is null\n";
return os;
}
};
std::vector< _nodeDef > _nodes;
std::vector< int > _quantities;
_volumeDef* _next; // to store several _volumeDefs in a chain
StdMeshers::Cartesian3D::TGeomID _solidID;
double _size;
const SMDS_MeshElement* _volume; // new volume
std::vector<const SMDS_MeshElement*> _brotherVolume; // produced due to poly split
std::vector< SMESH_Block::TShapeID > _names; // name of side a polygon originates from
_volumeDef(): _next(0), _solidID(0), _size(0), _volume(0) {}
~_volumeDef() { delete _next; }
_volumeDef( _volumeDef& other ):
_next(0), _solidID( other._solidID ), _size( other._size ), _volume( other._volume )
{ _nodes.swap( other._nodes ); _quantities.swap( other._quantities ); other._volume = 0;
_names.swap( other._names ); }
size_t size() const { return 1 + ( _next ? _next->size() : 0 ); } // nb _volumeDef in a chain
_volumeDef* at(int index)
{ return index == 0 ? this : ( _next ? _next->at(index-1) : _next ); }
void Set( _Node** nodes, int nb )
{ _nodes.assign( nodes, nodes + nb ); }
void SetNext( _volumeDef* vd )
{ if ( _next ) { _next->SetNext( vd ); } else { _next = vd; }}
bool IsEmpty() const { return (( _nodes.empty() ) &&
( !_next || _next->IsEmpty() )); }
bool IsPolyhedron() const { return ( !_quantities.empty() ||
( _next && !_next->_quantities.empty() )); }
std::vector<std::set<std::pair<int, int>>> getPolygonsEdges() const;
std::vector<std::set<std::pair<int, int>>> findOpenEdges() const;
int getStartNodeIndex(const int polygon) const;
std::map<int, std::vector<int>> findOverlappingPolygons() const;
bool divideOverlappingPolygons();
bool fixOpenEdgesPolygons();
bool capOpenEdgesPolygons(const std::vector<std::set<std::pair<int, int>>>& edgesByPolygon);
bool removeOpenEdgesPolygons(const std::vector<std::set<std::pair<int, int>>>& edgesByPolygon);
struct _linkDef: public std::pair<_ptr,_ptr> // to join polygons in removeExcessSideDivision()
{
_nodeDef _node1;//, _node2;
mutable /*const */_linkDef *_prev, *_next;
size_t _loopIndex;
_linkDef():_prev(0), _next(0) {}
void init( const _nodeDef& n1, const _nodeDef& n2, size_t iLoop )
{
_node1 = n1; //_node2 = n2;
_loopIndex = iLoop;
first = n1.Ptr();
second = n2.Ptr();
if ( first > second ) std::swap( first, second );
}
void setNext( _linkDef* next )
{
_next = next;
next->_prev = this;
}
friend std::ostream& operator<<(std::ostream& os, const _linkDef& link)
{
os << "Link def:\n";
os << link._node1;
if (link.first)
os << "first: " << link.first;
if (link.second)
os << "second: " << link.second;
os << "_loopIndex: " << link._loopIndex << '\n';
return os;
}
};
};
// topology of a hexahedron
static const std::size_t HEX_NODES_NUM = 8;
static const std::size_t HEX_LINKS_NUM = 12;
static const std::size_t HEX_QUADS_NUM = 6;
_Node _hexNodes [HEX_NODES_NUM];
_Link _hexLinks [HEX_LINKS_NUM];
_Face _hexQuads [HEX_QUADS_NUM];
// faces resulted from hexahedron intersection
std::vector< _Face > _polygons;
// intresections with EDGEs
std::vector< const StdMeshers::Cartesian3D::E_IntersectPoint* > _eIntPoints;
// additional nodes created at intersection points
std::vector< _Node > _intNodes;
// nodes inside the hexahedron (at VERTEXes) refer to _intNodes
std::vector< _Node* > _vIntNodes;
// computed volume elements
_volumeDef _volumeDefs;
StdMeshers::Cartesian3D::Grid* _grid;
double _sideLength[3];
int _nbCornerNodes, _nbFaceIntNodes, _nbBndNodes;
int _origNodeInd; // index of _hexNodes[0] node within the _grid
size_t _i,_j,_k;
bool _hasTooSmall;
int _cellID;
public:
Hexahedron(StdMeshers::Cartesian3D::Grid* grid);
int MakeElements(SMESH_MesherHelper& helper,
const TEdge2faceIDsMap& edge2faceIDsMap,
const int numOfThreads = 1 );
void computeElements( const Solid* solid = 0, int solidIndex = -1 );
private:
Hexahedron(const Hexahedron& other, size_t i, size_t j, size_t k, int cellID );
void init( size_t i, size_t j, size_t k, const Solid* solid=0 );
void init( size_t i );
void clearNodesLinkedToNull(const Solid* solid, SMESH_MesherHelper& helper);
bool isSplittedLink(const Solid* solid, SMESH_MesherHelper& helper, const Hexahedron::_Link& linkIn) const;
void setIJK( size_t i );
/*Auxiliary methods to extract operations from monolitic compute method*/
void defineHexahedralFaces( const Solid* solid, const IsInternalFlag intFlag );
bool compute( const Solid* solid, const IsInternalFlag intFlag );
size_t getSolids( StdMeshers::Cartesian3D::TGeomID ids[] );
bool isCutByInternalFace( IsInternalFlag & maxFlag );
void addEdges(SMESH_MesherHelper& helper,
std::vector< Hexahedron* >& intersectedHex,
const TEdge2faceIDsMap& edge2faceIDsMap);
gp_Pnt findIntPoint( double u1, double proj1, double u2, double proj2,
double proj, BRepAdaptor_Curve& curve,
const gp_XYZ& axis, const gp_XYZ& origin );
int getEntity( const StdMeshers::Cartesian3D::E_IntersectPoint* ip, int* facets, int& sub );
bool addIntersection( const StdMeshers::Cartesian3D::E_IntersectPoint* ip,
std::vector< Hexahedron* >& hexes,
int ijk[], int dIJK[] );
bool isQuadOnFace( const size_t iQuad );
bool findChain( _Node* n1, _Node* n2, _Face& quad, std::vector<_Node*>& chainNodes );
bool closePolygon( _Face* polygon, std::vector<_Node*>& chainNodes ) const;
bool findChainOnEdge( const std::vector< _OrientedLink >& splits,
const _OrientedLink& prevSplit,
const _OrientedLink& avoidSplit,
const std::set< StdMeshers::Cartesian3D::TGeomID > & concaveFaces,
size_t & iS,
_Face& quad,
std::vector<_Node*>& chn);
typedef std::pair< StdMeshers::Cartesian3D::TGeomID, int > TFaceOfLink; // (face, link)
static TFaceOfLink findStartLink(const std::vector< _OrientedLink* >& freeLinks,
std::set< StdMeshers::Cartesian3D::TGeomID >& usedFaceIDs);
size_t findCoplanarPolygon
(const _Face& thePolygon,
const size_t nbQuadPolygons,
std::vector< _OrientedLink* >& freeLinks,
int& nbFreeLinks,
const E_IntersectPoint& ipTmp,
std::set< StdMeshers::Cartesian3D::TGeomID >& usedFaceIDs,
std::map< StdMeshers::Cartesian3D::TGeomID, std::vector< const B_IntersectPoint* > >& tmpAddedFace,
const StdMeshers::Cartesian3D::TGeomID& curFace);
int addVolumes( SMESH_MesherHelper& helper );
void addFaces( SMESH_MesherHelper& helper,
const std::vector< const SMDS_MeshElement* > & boundaryVolumes );
void addSegments( SMESH_MesherHelper& helper,
const TEdge2faceIDsMap& edge2faceIDsMap );
void getVolumes( std::vector< const SMDS_MeshElement* > & volumes );
void getBoundaryElems( std::vector< const SMDS_MeshElement* > & boundaryVolumes );
void removeExcessSideDivision(const std::vector< Hexahedron* >& allHexa);
void removeExcessNodes(std::vector< Hexahedron* >& allHexa);
void preventVolumesOverlapping();
StdMeshers::Cartesian3D::TGeomID getAnyFace() const;
void cutByExtendedInternal( std::vector< Hexahedron* >& hexes,
const TColStd_MapOfInteger& intEdgeIDs );
gp_Pnt mostDistantInternalPnt( int hexIndex, const gp_Pnt& p1, const gp_Pnt& p2 );
bool isOutPoint( _Link& link, int iP, SMESH_MesherHelper& helper, const Solid* solid ) const;
void sortVertexNodes(std::vector<_Node*>& nodes,
_Node* curNode,
StdMeshers::Cartesian3D::TGeomID face);
bool isInHole() const;
bool hasStrangeEdge() const;
bool checkPolyhedronSize( bool isCutByInternalFace, double & volSize ) const;
int checkPolyhedronValidity( _volumeDef* volDef, std::vector<std::vector<int>>& splitQuantities,
std::vector<std::vector<const SMDS_MeshNode*>>& splitNodes );
const SMDS_MeshElement* addPolyhedronToMesh( _volumeDef* volDef,
SMESH_MesherHelper& helper,
const std::vector<const SMDS_MeshNode*>& nodes,
const std::vector<int>& quantities );
bool addHexa ();
bool addTetra();
bool addPenta();
bool addPyra ();
bool debugDumpLink( _Link* link );
_Node* findEqualNode( std::vector< _Node* >& nodes,
const StdMeshers::Cartesian3D::E_IntersectPoint* ip,
const double tol2 )
{
for ( size_t i = 0; i < nodes.size(); ++i )
if ( nodes[i]->EdgeIntPnt() == ip ||
nodes[i]->Point().SquareDistance( ip->_point ) <= tol2 )
return nodes[i];
return 0;
}
bool isCorner( const _Node* node ) const { return ( node >= &_hexNodes[0] &&
node - &_hexNodes[0] < 8 ); }
bool hasEdgesAround( const ConcaveFace* cf ) const;
bool isImplementEdges() const { return _grid->_edgeIntPool.nbElements(); }
bool isOutParam(const double uvw[3]) const;
typedef boost::container::flat_map< StdMeshers::Cartesian3D::TGeomID, size_t > TID2Nb;
static void insertAndIncrement( StdMeshers::Cartesian3D::TGeomID id, TID2Nb& id2nbMap )
{
TID2Nb::value_type s0( id, 0 );
TID2Nb::iterator id2nb = id2nbMap.insert( s0 ).first;
id2nb->second++;
}
}; // class Hexahedron
} // end namespace Cartesian3D
} // end namespace StdMeshers
#endif

View File

@ -41,3 +41,10 @@ FOREACH(tfile ${CPP_TESTS})
ADD_TEST(${TEST_NAME} ${BASE_NAME} )
SET_TESTS_PROPERTIES(${TEST_NAME} PROPERTIES LABELS "${COMPONENT_NAME};${COMPONENT_NAME}_tests")
ENDFOREACH()
FOREACH(tfile ${UNIT_TESTS})
GET_FILENAME_COMPONENT(BASE_NAME ${tfile} NAME_WE)
SET(TEST_NAME SMESH_${BASE_NAME})
ADD_TEST(${TEST_NAME} ${BASE_NAME} )
SET_TESTS_PROPERTIES(${TEST_NAME} PROPERTIES LABELS "${COMPONENT_NAME};${COMPONENT_NAME}_tests")
ENDFOREACH()

View File

@ -0,0 +1,441 @@
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View File

@ -0,0 +1,598 @@
DBRep_DrawableShape
CASCADE Topology V1, (c) Matra-Datavision
Locations 0
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View File

@ -127,6 +127,11 @@ SET(CPP_TESTS
SMESH_RegularGridTest
)
SET(UNIT_TESTS # Any unit test add in src names space should be added here
HexahedronTest
HexahedronCanonicalShapesTest
)
# The following tests can be executed without driver, just by python.
# ----------------------------------------------------------------------------