Least-squares-weighted interpolation stencil. More...

Inheritance diagram for leastSquares:

Collaboration diagram for leastSquares:

Public Member Functions
	TypeName ("leastSquares")
	Runtime type information. More...

	leastSquares (const fvMesh &, const dictionary &, const bool)
	Construct from fvMesh. More...

virtual	~leastSquares ()
	Destructor. More...

virtual void	stencilWeights (const point &sample, const pointList &donorCcs, scalarList &weights) const
	Calculate lsq weights for single acceptor. More...

Public Member Functions inherited from inverseDistance
	TypeName ("inverseDistance")
	Runtime type information. More...

	inverseDistance (const fvMesh &, const dictionary &, const bool)
	Construct from fvMesh. More...

virtual	~inverseDistance ()
	Destructor. More...

virtual bool	update ()
	Update stencils. Return false if nothing changed. More...

virtual const labelUList &	cellTypes () const
	Return the cell type list. More...

virtual const labelUList &	interpolationCells () const
	Indices of interpolated cells. More...

virtual const mapDistribute &	cellInterpolationMap () const
	Return a communication schedule. More...

virtual const labelListList &	cellStencil () const
	Per interpolated cell the neighbour cells (in terms of slots as. More...

virtual const scalarListList &	cellInterpolationWeights () const
	Weights for cellStencil. More...

virtual const scalarList &	cellInterpolationWeight () const
	Per interpolated cell the interpolation factor. (0 = use. More...

Public Member Functions inherited from cellCellStencil
	TypeName ("cellCellStencil")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, cellCellStencil, mesh,(const fvMesh &mesh, const dictionary &dict, const bool update),(mesh, dict, update))

	cellCellStencil (const fvMesh &)
	Construct from fvMesh. More...

virtual	~cellCellStencil ()
	Destructor. More...

virtual const wordHashSet &	nonInterpolatedFields () const
	Return the names of any (stencil or mesh specific) fields that. More...

virtual wordHashSet &	nonInterpolatedFields ()
	Return non-const non-interpolating fields. More...

bool	localStencil (const labelUList &) const
	Helper: is stencil fully local. More...

const labelIOList &	zoneID () const
	Helper: get reference to registered zoneID. Loads volScalarField. More...

template<class T >
void	interpolate (const fvMesh &mesh, Field< T > &psi) const
	Explicit interpolation of acceptor cells from donor cells. Looks up cellCellStencil. More...

template<class GeoField >
void	interpolate (GeoField &psi) const
	Explicit interpolation of acceptor cells from donor cells with boundary condition handling. More...

template<class GeoField >
void	interpolate (const fvMesh &mesh, const wordHashSet &suppressed) const
	Explicit interpolation of all registered fields. No boundary conditions. Excludes selected fields (and their old-time fields) More...

void	walkFront (const globalIndex &globalCells, const scalar layerRelax, const labelListList &allStencil, labelList &allCellTypes, scalarField &allWeight, const scalarList &compactCellVol, const labelListList &compactStencil, const labelList &zoneID, const label holeLayers, const label useLayer) const
	Surround holes with layer(s) of interpolated cells. More...

void	setUpFront (const labelList &allCellTypes, bitSet &isFront) const
	Set up front using allCellTypes. More...

void	setUpFrontOnOversetPatch (const labelList &allCellTypes, bitSet &isFront) const
	Set up front on overset patches. More...

void	seedCell (const label cellI, const scalar wantedFraction, bitSet &isFront, scalarField &fraction) const
	Seed faces of cell with wantedFraction (if higher than current) More...

InfoProxy< cellCellStencil >	info () const noexcept
	Return info proxy, used to print stencil information to a stream. More...

template<class Type >
Foam::tmp< Foam::volScalarField >	createField (const fvMesh &mesh, const word &name, const UList< Type > &psi)

Additional Inherited Members
Public Types inherited from cellCellStencil
enum	patchCellType { OTHER = 0, PATCH = 1, OVERSET = 2 }

enum	cellType { CALCULATED = 0, INTERPOLATED = 1, HOLE = 2, SPECIAL = 3, POROUS = 4 }

Static Public Member Functions inherited from cellCellStencil
static autoPtr< cellCellStencil >	New (const fvMesh &, const dictionary &dict, const bool update=true)
	New function which constructs and returns pointer to a. More...

static const labelIOList &	zoneID (const fvMesh &)
	Helper: get reference to registered zoneID. Loads volScalarField. More...

static labelList	count (const label size, const labelUList &lst)
	Count occurrences (in parallel) More...

static void	globalCellCells (const globalIndex &gi, const polyMesh &mesh, const boolList &isValidDonor, const labelList &selectedCells, labelListList &cellCells, pointListList &cellCellCentres)
	Helper: create cell-cell addressing in global numbering. More...

template<class T >
static void	interpolate (Field< T > &psi, const fvMesh &mesh, const cellCellStencil &overlap, const List< scalarList > &wghts)
	Interpolation of acceptor cells from donor cells. More...

template<class GeoField , class SuppressBC >
static void	correctBoundaryConditions (GeoField &psi)
	Version of correctBoundaryConditions that excludes 'overset' bcs. More...

Protected Member Functions inherited from inverseDistance
void	markPatchesAsHoles (PstreamBuffers &pBufs, const PtrList< fvMeshSubset > &meshParts, const List< treeBoundBoxList > &patchBb, const List< labelVector > &patchDivisions, const PtrList< PackedList< 2 >> &patchParts, const label srcI, const label tgtI, labelList &allCellTypes) const
	Mark all cells overlapping (a voxel covered by) a src patch. More...

bool	betterDonor (const label destMesh, const label currentDonorMesh, const label newDonorMesh) const
	If multiple donors meshes: decide which is best. More...

void	markDonors (const globalIndex &globalCells, PstreamBuffers &pBufs, const PtrList< fvMeshSubset > &meshParts, const List< treeBoundBoxList > &meshBb, const labelList &allCellTypes, const label srcI, const label tgtI, labelListList &allStencil, labelList &allDonor) const
	Determine donors for all tgt cells. More...

void	uncompactedRegionSplit (const fvMesh &mesh, const globalIndex &globalFaces, const label nZones, const labelList &zoneID, const labelList &cellTypes, const boolList &isBlockedFace, labelList &cellRegion) const
	Replacement of regionSplit. More...

autoPtr< globalIndex >	compactedRegionSplit (const fvMesh &mesh, const globalIndex &globalFaces, labelList &cellRegion) const

void	findHoles (const globalIndex &globalCells, const fvMesh &mesh, const labelList &zoneID, const labelListList &stencil, labelList &cellTypes) const
	Do flood filling to detect unreachable (from patches) sections. More...

void	seedCell (const label cellI, const scalar wantedFraction, bitSet &isFront, scalarField &fraction) const
	Seed faces of cell with wantedFraction (if higher than current) More...

virtual void	createStencil (const globalIndex &, const bool allowHoleDonors)
	Create stencil starting from the donor containing the acceptor allowHoleDonors : allow donors of type HOLE (otherwise are filtered out) More...

void	holeExtrapolationStencil (const globalIndex &globalCells)
	Make holes next to live ones type SPECIAL and include in interpolation stencil. More...

Protected Member Functions inherited from cellCellStencil
void	suppressMotionFields ()
	Helper: populate nonInterpolatedFields_ with motion solver. More...

Static Protected Member Functions inherited from inverseDistance
static label	index (const labelVector &nDivs, const labelVector &)
	Convert ijk indices into single index. More...

static labelVector	index3 (const labelVector &nDivs, const label)
	Convert single index into ijk. More...

static labelVector	index3 (const boundBox &bb, const labelVector &nDivs, const point &pt)
	Convert coordinate into ijk. More...

static point	position (const boundBox &bb, const labelVector &nDivs, const label boxI)
	Convert index back into coordinate. More...

static void	fill (PackedList< 2 > &elems, const boundBox &bb, const labelVector &nDivs, const boundBox &subBb, const unsigned int val)
	Fill all elements overlapping subBb with value val. More...

static bool	overlaps (const boundBox &bb, const labelVector &nDivs, const PackedList< 2 > &voxels, const treeBoundBox &subBb, const unsigned int val)
	Is any voxel inside subBb set to val. More...

static void	markBoundaries (const fvMesh &mesh, const vector &smallVec, const boundBox &bb, const labelVector &nDivs, PackedList< 2 > &patchTypes, const labelList &cellMap, labelList &patchCellTypes)
	Mark voxels of patchTypes with type of patch face. More...

Static Protected Member Functions inherited from cellCellStencil
template<class Type >
static tmp< volScalarField >	createField (const fvMesh &mesh, const word &name, const UList< Type > &)
	Helper: create volScalarField for postprocessing. More...

static word	baseName (const word &name)
	Helper: strip off trailing _0. More...

Protected Attributes inherited from inverseDistance
const dictionary	dict_
	Dictionary of motion control parameters. More...

const bool	allowHoleDonors_
	Allow holes as donors. More...

const bool	allowInterpolatedDonors_
	Allow interpolared as donors. More...

vector	smallVec_
	Small perturbation vector for geometric tests. More...

labelList	cellTypes_
	Per cell the cell type. More...

labelList	interpolationCells_
	Indices of interpolated cells. More...

autoPtr< mapDistribute >	cellInterpolationMap_
	Fetch interpolated cells. More...

labelListList	cellStencil_
	Interpolation stencil. More...

scalarListList	cellInterpolationWeights_
	Interpolation weights. More...

volScalarField	cellInterpolationWeight_
	Amount of interpolation. More...

Protected Attributes inherited from cellCellStencil
const fvMesh &	mesh_
	Reference to the mesh. More...

wordHashSet	nonInterpolatedFields_
	Set of fields that should not be interpolated. More...

const dictionary	dict_
	Dictionary of motion control parameters. More...

Static Protected Attributes inherited from cellCellStencil
static const Enum< cellType >	cellTypeNames_
	Mode type names. More...

Detailed Description

Least-squares-weighted interpolation stencil.

Base machinery is similar to inverse distance interpolation stencil but weights minimize error in LSQ sense recovering exact solution for linear solution problems. Gradient and values are found simultaneously.

Source files

Definition at line 54 of file leastSquaresCellCellStencil.H.