Static Public Member Functions | Static Public Attributes | List of all members
polyMeshTetDecomposition Class Reference

Tools for performing the minimum decomposition of faces of the mesh into triangles so that the cells may be tet decomposed. Includes functions for finding variable face starting (base) points on each face to avoid the decomposition of cells into tets that have negative or zero volume. More...

Static Public Member Functions

static scalar minQuality (const polyMesh &mesh, const point &cC, const label fI, const bool isOwner, const label faceBasePtI)
 Given a face and cc and starting index for triangulation determine. More...
 
static label findSharedBasePoint (const polyMesh &mesh, label fI, const point &nCc, scalar tol, bool report=false)
 Find the first suitable base point to use for a minimum. More...
 
static label findSharedBasePoint (const polyMesh &mesh, label fI, scalar tol, bool report=false)
 As for findSharedBasePoint, but using neighbour cell. More...
 
static label findBasePoint (const polyMesh &mesh, label fI, scalar tol, bool report=false)
 Find the base point to use for a minimum triangle. More...
 
static labelList findFaceBasePts (const polyMesh &mesh, scalar tol=minTetQuality, bool report=false)
 Find a suitable base point for each face for decomposition. More...
 
static bool checkFaceTets (const polyMesh &mesh, scalar tol=minTetQuality, const bool report=false, labelHashSet *setPtr=nullptr)
 Check face-decomposition tet volume. More...
 
static List< tetIndices > faceTetIndices (const polyMesh &mesh, label fI, label cI)
 Return the tet decomposition of the given face, with. More...
 
static List< tetIndices > cellTetIndices (const polyMesh &mesh, label cI)
 Return the tet decomposition of the given cell, see. More...
 
static tetIndices findTet (const polyMesh &mesh, label cI, const point &pt)
 Find the tet decomposition of the cell containing the given point. More...
 

Static Public Attributes

static const scalar minTetQuality = sqr(small)
 Minimum tetrahedron quality. More...
 

Detailed Description

Tools for performing the minimum decomposition of faces of the mesh into triangles so that the cells may be tet decomposed. Includes functions for finding variable face starting (base) points on each face to avoid the decomposition of cells into tets that have negative or zero volume.

Source files

Definition at line 56 of file polyMeshTetDecomposition.H.

Member Function Documentation

◆ minQuality()

Foam::scalar minQuality ( const polyMesh &  mesh,
const point &  cC,
const label  fI,
const bool  isOwner,
const label  faceBasePtI 
)
static

Given a face and cc and starting index for triangulation determine.

the worst tet quality.

Definition at line 39 of file polyMeshTetDecomposition.C.

References f(), polyMesh::faces(), polyMeshTetDecomposition::findSharedBasePoint(), polyMesh::points(), and tetrahedron< Point, PointRef >::quality().

Referenced by NamedEnum< compressibleField, 8 >::names().

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◆ findSharedBasePoint() [1/2]

Foam::label findSharedBasePoint ( const polyMesh &  mesh,
label  fI,
const point &  nCc,
scalar  tol,
bool  report = false 
)
static

Find the first suitable base point to use for a minimum.

triangle decomposition of the face, suiting owner and neighbour cells. Finds the first base point on the face whose worst quality tet from either cell is better than tolerance. Neighbour cell centre supplied. For coupled patches.

Definition at line 92 of file polyMeshTetDecomposition.C.

References primitiveMesh::cellCentres(), f(), polyMesh::faceOwner(), polyMesh::faces(), forAll, Foam::min(), and pFaces.

Referenced by Foam::polyMeshCheck::checkFaceTets(), and polyMeshTetDecomposition::minQuality().

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◆ findSharedBasePoint() [2/2]

Foam::label findSharedBasePoint ( const polyMesh &  mesh,
label  fI,
scalar  tol,
bool  report = false 
)
static

As for findSharedBasePoint, but using neighbour cell.

centre from the mesh. For internal faces.

Definition at line 128 of file polyMeshTetDecomposition.C.

References primitiveMesh::cellCentres(), polyMesh::faceNeighbour(), and polyMeshTetDecomposition::findBasePoint().

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◆ findBasePoint()

Foam::label findBasePoint ( const polyMesh &  mesh,
label  fI,
scalar  tol,
bool  report = false 
)
static

Find the base point to use for a minimum triangle.

decomposition of the face, using only the owner information. For non-coupled boundary faces.

Definition at line 147 of file polyMeshTetDecomposition.C.

References primitiveMesh::cellCentres(), f(), polyMesh::faceOwner(), polyMesh::faces(), polyMeshTetDecomposition::findFaceBasePts(), forAll, and pFaces.

Referenced by Foam::polyMeshCheck::checkFaceTets(), and polyMeshTetDecomposition::findSharedBasePoint().

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◆ findFaceBasePts()

Foam::labelList findFaceBasePts ( const polyMesh &  mesh,
scalar  tol = minTetQuality,
bool  report = false 
)
static

Find a suitable base point for each face for decomposition.

into tets

Definition at line 183 of file polyMeshTetDecomposition.C.

References Foam::abort(), polyMesh::boundaryMesh(), primitiveMesh::cellCentres(), polyMeshTetDecomposition::checkFaceTets(), polyMesh::faceOwner(), polyMesh::faces(), Foam::FatalError, FatalErrorInFunction, primitiveMesh::nFaces(), primitiveMesh::nInternalFaces(), coupledPolyPatch::owner(), patches, patchi, polyBoundaryMesh::patchID(), and List< T >::size().

Referenced by polyMeshTetDecomposition::findBasePoint(), and polyMesh::tetBasePtIs().

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◆ checkFaceTets()

bool checkFaceTets ( const polyMesh &  mesh,
scalar  tol = minTetQuality,
const bool  report = false,
labelHashSet *  setPtr = nullptr 
)
static

Check face-decomposition tet volume.

Definition at line 344 of file polyMeshTetDecomposition.C.

References polyMesh::boundaryMesh(), primitiveMesh::cellCentres(), Foam::endl(), f(), primitiveMesh::faceCentres(), polyMesh::faceNeighbour(), polyMesh::faceOwner(), polyMesh::faces(), polyMeshTetDecomposition::faceTetIndices(), forAll, Foam::Info, HashSet< Key, Hash >::insert(), primitiveMesh::isInternalFace(), face::nextLabel(), primitiveMesh::nFaces(), primitiveMesh::nInternalFaces(), p, patches, patchi, polyBoundaryMesh::patchID(), polyMesh::points(), and Foam::reduce().

Referenced by polyMeshTetDecomposition::findFaceBasePts().

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◆ faceTetIndices()

Foam::List< Foam::tetIndices > faceTetIndices ( const polyMesh &  mesh,
label  fI,
label  cI 
)
static

Return the tet decomposition of the given face, with.

respect to the given cell

Definition at line 504 of file polyMeshTetDecomposition.C.

References polyMeshTetDecomposition::cellTetIndices(), f(), polyMesh::faces(), pFaces, and List< T >::size().

Referenced by polyMeshTetDecomposition::checkFaceTets(), cellPointWeight::findTriangle(), and FreeStream< CloudType >::inflow().

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◆ cellTetIndices()

Foam::List< Foam::tetIndices > cellTetIndices ( const polyMesh &  mesh,
label  cI 
)
static

Return the tet decomposition of the given cell, see.

findFacePt for the meaning of the indices

Definition at line 528 of file polyMeshTetDecomposition.C.

References DynamicList< T, SizeInc, SizeMult, SizeDiv >::append(), primitiveMesh::cells(), polyMesh::faces(), polyMeshTetDecomposition::findTet(), forAll, pFaces, and List< T >::size().

Referenced by polyMeshTetDecomposition::faceTetIndices(), cellPointWeight::findTetrahedron(), and patchInjectionBase::setPositionAndCell().

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◆ findTet()

Foam::tetIndices findTet ( const polyMesh &  mesh,
label  cI,
const point &  pt 
)
static

Find the tet decomposition of the cell containing the given point.

Definition at line 559 of file polyMeshTetDecomposition.C.

References tetIndices::cell(), primitiveMesh::cells(), f(), polyMesh::faces(), forAll, tetrahedron< Point, PointRef >::inside(), pFaces, List< T >::size(), and tetIndices::tet().

Referenced by polyMeshTetDecomposition::cellTetIndices(), and polyMesh::findTetFacePt().

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Member Data Documentation

◆ minTetQuality

const Foam::scalar minTetQuality = sqr(small)
static

Minimum tetrahedron quality.

Definition at line 64 of file polyMeshTetDecomposition.H.

The documentation for this class was generated from the following files: