faceCollapser Class Reference

Collapses faces into edges. Used to remove sliver faces (faces with small area but non-zero span). More...

Collaboration diagram for faceCollapser:

Public Member Functions
	ClassName ("faceCollapser")
	Runtime type information. More...
	faceCollapser (const polyMesh &mesh)
	Construct from mesh. More...
void	setRefinement (const labelList &faceLabels, const labelList &fpA, const labelList &fpB, polyTopoChange &) const
	Collapse faces along endpoints. Play commands into. More...
void	updateMesh (const mapPolyMesh &)
	Update stored quantities for new mesh labels. More...

Private Member Functions
void	filterFace (const Map< labelList > &splitEdges, const label faceI, polyTopoChange &meshMod) const
	Replace vertices in face. More...
	faceCollapser (const faceCollapser &)
	Disallow default bitwise copy construct. More...
void	operator= (const faceCollapser &)
	Disallow default bitwise assignment. More...

Static Private Member Functions
static void	insert (const labelList &elems, const label excludeElem, labelHashSet &set)
	Insert labelList into labelHashSet. Optional excluded element. More...
static label	findEdge (const edgeList &edges, const labelList &edgeLabels, const label v0, const label v1)
	Find edge amongst candidate edges. More...

Private Attributes
const polyMesh &	mesh_
	Reference to mesh. More...

Detailed Description

Collapses faces into edges. Used to remove sliver faces (faces with small area but non-zero span).

Passed in as

• face label
• the two indices in the face (fpA, fpB) which delimit the vertices to be kept.

Takes the vertices outside the range fpA..fpB and projects them onto the kept edges (edges using kept vertices only).

Note:

• Use in combination with edge collapse to cleanup meshes.
• Can not remove cells so will mess up trying to remove a face on a tet.
• WIP. Should be combined with edge collapsing and cell collapsing into proper 'collapser'.
• Caller is responsible for making sure kept vertices (fpA..fpB) for one face are not the vertices to be removed for another face.

Source files

• faceCollapser.H
• faceCollapser.C

Definition at line 75 of file faceCollapser.H.

Constructor & Destructor Documentation

faceCollapser() [1/2]

faceCollapser ( const faceCollapser &  )

private

Disallow default bitwise copy construct.

faceCollapser() [2/2]

faceCollapser

(

const polyMesh &

mesh

)

Construct from mesh.

Definition at line 201 of file faceCollapser.C.

Member Function Documentation

insert()

void insert ( const labelList &  elems, const label  excludeElem, labelHashSet &  set  )

staticprivate

Insert labelList into labelHashSet. Optional excluded element.

Definition at line 41 of file faceCollapser.C.

References forAll, and HashSet< Key, Hash >::insert().

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findEdge()

Foam::label findEdge ( const edgeList &  edges, const labelList &  edgeLabels, const label  v0, const label  v1  )

staticprivate

Find edge amongst candidate edges.

Definition at line 59 of file faceCollapser.C.

References Foam::abort(), Foam::constant::electromagnetic::e, Foam::FatalError, FatalErrorInFunction, and forAll.

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filterFace()

void filterFace ( const Map< labelList > &  splitEdges, const label  faceI, polyTopoChange &  meshMod  ) const

private

Replace vertices in face.

Definition at line 94 of file faceCollapser.C.

References DynamicList::append(), f(), Foam::meshTools::findEdge(), faceZone::flipMap(), forAll, forAllReverse, polyTopoChange::setAction(), DynamicList::shrink(), and faceZone::whichFace().

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operator=()

void operator= ( const faceCollapser &  )

private

Disallow default bitwise assignment.

ClassName()

ClassName

(

"faceCollapser"

)

Runtime type information.

setRefinement()

void setRefinement	(	const labelList &	faceLabels,
		const labelList &	fpA,
		const labelList &	fpB,
		polyTopoChange &	meshMod
	)		const

Collapse faces along endpoints. Play commands into.

polyTopoChange to create mesh.

Definition at line 210 of file faceCollapser.C.

References Foam::abort(), DynamicList::append(), Foam::e, Foam::endl(), HashTable::erase(), f(), Foam::FatalError, FatalErrorInFunction, Foam::meshTools::findEdge(), forAll, forAllConstIter(), SortableList::indices(), insert(), Foam::magSqr(), line::nearestDist(), Foam::nl, points, Foam::Pout, PointHit::rawPoint(), Foam::reverse(), polyTopoChange::setAction(), PointHit::setPoint(), DynamicList::shrink(), List::size(), SortableList::sort(), Foam::sqrt(), w(), and Foam::meshTools::writeOBJ().

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updateMesh()

void updateMesh ( const mapPolyMesh &  )

inline

Update stored quantities for new mesh labels.

Definition at line 148 of file faceCollapser.H.

Field Documentation

mesh_

const polyMesh& mesh_

private

Reference to mesh.

Definition at line 80 of file faceCollapser.H.

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

• src/dynamicMesh/polyTopoChange/polyTopoChange/faceCollapser.H
• src/dynamicMesh/polyTopoChange/polyTopoChange/faceCollapser.C