Cuts (splits) cells. More...

Inheritance diagram for meshCutter:

Collaboration diagram for meshCutter:

[legend]

Public Member Functions
	ClassName ("meshCutter")
	Runtime type information. More...

	meshCutter (const polyMesh &mesh)
	Construct from mesh. More...

	~meshCutter ()
	Destructor. More...

void	setRefinement (const cellCuts &cuts, polyTopoChange &meshMod)
	Do actual cutting with cut description. Inserts mesh changes. More...

void	updateMesh (const mapPolyMesh &)
	Force recalculation of locally stored data on topological change. More...

const Map< label > &	addedCells () const
	Cells added. Per split cell label of added cell. More...

const Map< label > &	addedFaces () const
	Faces added. Per split cell label of added face. More...

const HashTable< label, edge, Hash< edge > > &	addedPoints () const
	Points added. Per split edge label of added point. More...

Public Member Functions inherited from edgeVertex
	edgeVertex (const polyMesh &mesh)
	Construct from mesh. More...

const polyMesh &	mesh () const

bool	isEdge (const label eVert) const

label	getEdge (const label eVert) const

label	getVertex (const label eVert) const

label	vertToEVert (const label vertI) const

label	edgeToEVert (const label edgeI) const

point	coord (const label cut, const scalar weight) const

label	cutPairToEdge (const label cut0, const label cut1) const

Ostream &	writeCut (Ostream &os, const label cut, const scalar) const
	Write cut description to Ostream. More...

Ostream &	writeCuts (Ostream &os, const labelList &, const scalarField &) const
	Write cut descriptions to Ostream. More...

Private Member Functions
label	findCutCell (const cellCuts &, const labelList &) const
	Returns -1 or the cell in cellLabels that is cut. More...

label	findInternalFacePoint (const labelList &pointLabels) const
	Returns first pointI in pointLabels that uses an internal. More...

void	faceCells (const cellCuts &cuts, const label faceI, label &own, label &nei) const
	Get new owner and neighbour of face. Checks anchor points to see if. More...

void	getFaceInfo (const label faceI, label &patchID, label &zoneID, label &zoneFlip) const
	Get patch information for face. More...

void	addFace (polyTopoChange &meshMod, const label faceI, const face &newFace, const label owner, const label neighbour)
	Adds a face on top of existing faceI. Flips face. More...

void	modFace (polyTopoChange &meshMod, const label faceI, const face &newFace, const label owner, const label neighbour)
	Modifies existing faceI for either new owner/neighbour or. More...

void	copyFace (const face &f, const label startFp, const label endFp, face &newFace) const

void	splitFace (const face &f, const label v0, const label v1, face &f0, face &f1) const
	Split face along cut into two faces. Faces are in same point. More...

face	addEdgeCutsToFace (const label faceI) const
	Add cuts of edges to face. More...

face	loopToFace (const label cellI, const labelList &loop) const
	Convert loop of cuts into face. More...

void	getFacesEdgesPoints (const label cellI, labelHashSet &faces, labelHashSet &edges, labelHashSet &points) const
	Get elements of cell. More...

	meshCutter (const meshCutter &)
	Disallow default bitwise copy construct. More...

void	operator= (const meshCutter &)
	Disallow default bitwise assignment. More...

Static Private Member Functions
static bool	uses (const labelList &elems1, const labelList &elems2)
	Do list 1 and 2 share elements? More...

static bool	isIn (const edge &, const labelList &)
	Do the elements of edge appear in consecutive order in the list. More...

Private Attributes
Map< label >	addedCells_
	Cells added in last setRefinement. Per splitcell label of added. More...

Map< label >	addedFaces_
	Faces added in last setRefinement. Per split cell label of added. More...

HashTable< label, edge, Hash< edge > >	addedPoints_
	Points added in last setRefinement. Per split edge label of added. More...

Additional Inherited Members
Static Public Member Functions inherited from edgeVertex
static void	updateLabels (const labelList &map, List< refineCell > &)
	Update refine list from map. Used to update cell/face labels. More...

static void	updateLabels (const labelList &map, Map< label > &)
	Update map from map. Used to update cell/face labels. More...

static void	updateLabels (const labelList &map, labelHashSet &)
	Update map from map. Used to update cell/face labels. More...

static bool	isEdge (const primitiveMesh &mesh, const label eVert)
	Is eVert an edge? More...

static label	getEdge (const primitiveMesh &mesh, const label eVert)
	Convert eVert to edge label. More...

static label	getVertex (const primitiveMesh &mesh, const label eVert)
	Convert eVert to vertex label. More...

static label	vertToEVert (const primitiveMesh &mesh, const label vertI)
	Convert pointI to eVert. More...

static label	edgeToEVert (const primitiveMesh &mesh, const label edgeI)
	Convert edgeI to eVert. More...

static point	coord (const primitiveMesh &, const label cut, const scalar weight)
	Return coordinate of cut (uses weight if edgeCut) More...

static label	cutPairToEdge (const primitiveMesh &, const label cut0, const label cut1)
	Find mesh edge (or -1) between two cuts. More...

Detailed Description

Cuts (splits) cells.

Description of cut is given as a loop of 'cuts' per cell (see cellCuts). setRefinement() takes this cut description and inserts the necessary topoActions (add points/faces/cells) into the polyTopoChange.

Stores added cells/faces/points.

Cut description gives orientation to cut by calculating 'anchorPoints'. The side of the cell that contains the anchorPoints is the master cell. Likewise the cells' edges will have the split added as a duplicate of the master (anchor) point. Think of it as the cell with the anchor points at the bottom. Add a face at the bottom to split the cell and then sweep this face up to be through the middle of the cell (inflation).

Start: cell with anchor points at bottom

+-------+
|       +
|       +
|       +
|       +
|       +
|       +
|       +
+-------+
anchor  anchor

Topo change: splitface introduced at bottom of cell, introducing a new cell and splitting the side faces into two.

+-------+
|       +
|       +
|       + <- addedCell
|       +
|       +
|       +
+-------+ <- splitFace
+-------+ <- original cell
anchor  anchor

Inflation: splitface shifted up to middle of cell (or wherever cut was)

+-------+
|       +
|       + <- addedCell
|       +
+-------+ <- splitFace
|       +
|       + <- original cell
|       +
+-------+
anchor  anchor

Anyway this was the original idea. Inflation was meant to handle conservative properties distribution without interpolation. (just face sweeping through space). But problem was that only if the introduced splitface was exactly the same shape as bottom face (so same 2D topo or perfectly flat) the volume between them was 0.

This meshCutting still uses anchorPoints though:

the master cell is the one without the anchor points. The added cell (on top of the splitFace) is the with.
the splitFace is owned by the master cell (since it has the lower number)
the side faces get split and get either the original cell as neighbour or the added cell (if the faces contain the cell anchor points)

Source files

Definition at line 134 of file meshCutter.H.

Constructor & Destructor Documentation

◆ meshCutter() [1/2]

meshCutter ( const meshCutter & )

private

Disallow default bitwise copy construct.

◆ meshCutter() [2/2]

meshCutter ( const polyMesh & mesh )

Construct from mesh.

Definition at line 505 of file meshCutter.C.

◆ ~meshCutter()

~meshCutter ( )

Destructor.

Definition at line 517 of file meshCutter.C.

Member Function Documentation

◆ uses()

bool uses	(	const labelList &	elems1,
		const labelList &	elems2
	)

staticprivate

Do list 1 and 2 share elements?

Definition at line 47 of file meshCutter.C.

References Foam::findIndex(), and forAll.

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◆ isIn()

bool isIn	(	const edge &	twoCuts,
		const labelList &	cuts
	)

staticprivate

Do the elements of edge appear in consecutive order in the list.

Definition at line 61 of file meshCutter.C.

References Foam::findIndex().

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◆ findCutCell()

Foam::label findCutCell	(	const cellCuts &	cuts,
		const labelList &	cellLabels
	)		const

private

Returns -1 or the cell in cellLabels that is cut.

Definition at line 84 of file meshCutter.C.

References cellCuts::cellLoops(), forAll, Foam::labelI, and List::size().

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◆ findInternalFacePoint()

Foam::label findInternalFacePoint ( const labelList & pointLabels ) const

private

Returns first pointI in pointLabels that uses an internal.

face. Used to find point to inflate cell/face from (has to be connected to internal face)

Definition at line 103 of file meshCutter.C.

References Foam::abort(), Foam::FatalError, FatalErrorInFunction, forAll, Foam::labelI, mesh, pFaces, primitiveMesh::pointFaces(), and pointLabels().

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◆ faceCells()

void faceCells	(	const cellCuts &	cuts,
		const label	faceI,
		label &	own,
		label &	nei
	)		const

private

Get new owner and neighbour of face. Checks anchor points to see if.

need to get original or added cell.

Definition at line 135 of file meshCutter.C.

References cellCuts::cellAnchorPoints(), cellCuts::cellLoops(), f(), polyMesh::faceNeighbour(), polyMesh::faceOwner(), polyMesh::faces(), and mesh.

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◆ getFaceInfo()

void getFaceInfo	(	const label	faceI,
		label &	patchID,
		label &	zoneID,
		label &	zoneFlip
	)		const

private

Get patch information for face.

Definition at line 169 of file meshCutter.C.

References polyMesh::boundaryMesh(), polyMesh::faceZones(), faceZone::flipMap(), mesh, faceZone::whichFace(), polyBoundaryMesh::whichPatch(), and ZoneMesh::whichZone().

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◆ addFace()

void addFace	(	polyTopoChange &	meshMod,
		const label	faceI,
		const face &	newFace,
		const label	owner,
		const label	neighbour
	)

private

Adds a face on top of existing faceI. Flips face.

if owner>neighbour

Definition at line 197 of file meshCutter.C.

References Foam::endl(), Foam::Pout, face::reverseFace(), and polyTopoChange::setAction().

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◆ modFace()

void modFace	(	polyTopoChange &	meshMod,
		const label	faceI,
		const face &	newFace,
		const label	owner,
		const label	neighbour
	)

private

Modifies existing faceI for either new owner/neighbour or.

new face points. Checks if anything changed and flips face if owner>neighbour

Definition at line 275 of file meshCutter.C.

References Foam::endl(), polyMesh::faces(), mesh, Foam::Pout, face::reverseFace(), and polyTopoChange::setAction().

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◆ copyFace()

void copyFace	(	const face &	f,
		const label	startFp,
		const label	endFp,
		face &	newFace
	)		const

private

Definition at line 350 of file meshCutter.C.

References f(), and List::size().

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◆ splitFace()

void splitFace	(	const face &	f,
		const label	v0,
		const label	v1,
		face &	f0,
		face &	f1
	)		const

private

Split face along cut into two faces. Faces are in same point.

order as original face (i.e. maintain normal direction)

Definition at line 372 of file meshCutter.C.

References Foam::abort(), f(), f1, Foam::FatalError, FatalErrorInFunction, Foam::findIndex(), List::setSize(), and List::size().

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◆ addEdgeCutsToFace()

Foam::face addEdgeCutsToFace ( const label faceI ) const

private

Add cuts of edges to face.

Definition at line 411 of file meshCutter.C.

References f(), polyMesh::faces(), HashTable::find(), forAll, mesh, List::setSize(), and List::size().

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◆ loopToFace()

Foam::face loopToFace	(	const label	cellI,
		const labelList &	loop
	)		const

private

Convert loop of cuts into face.

Definition at line 444 of file meshCutter.C.

References Foam::e, primitiveMesh::edges(), HashTable::find(), Foam::meshTools::findEdge(), forAll, mesh, List::setSize(), and List::size().

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◆ getFacesEdgesPoints()

void getFacesEdgesPoints	(	const label	cellI,
		labelHashSet &	faces,
		labelHashSet &	edges,
		labelHashSet &	points
	)		const

private

Get elements of cell.

◆ operator=()

void operator= ( const meshCutter & )

private

Disallow default bitwise assignment.

◆ ClassName()

ClassName ( "meshCutter" )

Runtime type information.

◆ setRefinement()

void setRefinement	(	const cellCuts &	cuts,
		polyTopoChange &	meshMod
	)

Do actual cutting with cut description. Inserts mesh changes.

into meshMod.

Definition at line 524 of file meshCutter.C.

References Foam::abort(), cellCuts::cellAnchorPoints(), cellCuts::cellLoops(), primitiveMesh::cells(), Foam::e, primitiveMesh::edgeFaces(), cellCuts::edgeIsCut(), primitiveMesh::edges(), cellCuts::edgeWeight(), Foam::endl(), f(), f1, polyMesh::faceNeighbour(), polyMesh::faceOwner(), polyMesh::faces(), cellCuts::faceSplitCut(), Foam::FatalError, FatalErrorInFunction, forAll, forAllConstIter(), mesh, Foam::nl, cellCuts::nLoops(), polyMesh::points(), Foam::Pout, polyTopoChange::setAction(), and List::size().

Referenced by main(), and undoableMeshCutter::setRefinement().

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◆ updateMesh()

void updateMesh ( const mapPolyMesh & morphMap )

Force recalculation of locally stored data on topological change.

Definition at line 972 of file meshCutter.C.

References Foam::e, Foam::endl(), forAllConstIter(), HashTable::insert(), Foam::Pout, mapPolyMesh::reverseCellMap(), mapPolyMesh::reverseFaceMap(), and mapPolyMesh::reversePointMap().

Referenced by main(), and undoableMeshCutter::updateMesh().

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◆ addedCells()

const Map<label>& addedCells ( ) const

inline

Cells added. Per split cell label of added cell.

Definition at line 297 of file meshCutter.H.

References meshCutter::addedCells_.

◆ addedFaces()

const Map<label>& addedFaces ( ) const

inline

Faces added. Per split cell label of added face.

Definition at line 303 of file meshCutter.H.

References meshCutter::addedFaces_.

◆ addedPoints()

const HashTable<label, edge, Hash<edge> >& addedPoints ( ) const

inline

Points added. Per split edge label of added point.

Definition at line 309 of file meshCutter.H.

References meshCutter::addedPoints_.

Field Documentation

◆ addedCells_

Map<label> addedCells_

private

Cells added in last setRefinement. Per splitcell label of added.

cell

Definition at line 142 of file meshCutter.H.

Referenced by meshCutter::addedCells().

◆ addedFaces_

Map<label> addedFaces_

private

Faces added in last setRefinement. Per split cell label of added.

face

Definition at line 146 of file meshCutter.H.

Referenced by meshCutter::addedFaces().

◆ addedPoints_

HashTable<label, edge, Hash<edge> > addedPoints_

private

Points added in last setRefinement. Per split edge label of added.

point

Definition at line 150 of file meshCutter.H.

Referenced by meshCutter::addedPoints().

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

src/dynamicMesh/meshCut/meshModifiers/meshCutter/meshCutter.H
src/dynamicMesh/meshCut/meshModifiers/meshCutter/meshCutter.C

Public Member Functions

Private Member Functions

Static Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ meshCutter() [1/2]

◆ meshCutter() [2/2]

◆ ~meshCutter()

Member Function Documentation

◆ uses()

◆ isIn()

◆ findCutCell()

◆ findInternalFacePoint()

◆ faceCells()

◆ getFaceInfo()

◆ addFace()

◆ modFace()

◆ copyFace()

◆ splitFace()

◆ addEdgeCutsToFace()

◆ loopToFace()

◆ getFacesEdgesPoints()

◆ operator=()

◆ ClassName()

◆ setRefinement()

◆ updateMesh()

◆ addedCells()

◆ addedFaces()

◆ addedPoints()

Field Documentation

◆ addedCells_

◆ addedFaces_

◆ addedPoints_