A face is a list of labels corresponding to mesh vertices. More...

Inheritance diagram for face:

Collaboration diagram for face:

Public Types
enum	proxType { NONE = 0, POINT, EDGE }
	The proximity classifications. More...

Public Types inherited from List< label >
typedef SubList< label >	subList
	Declare type of subList. More...

Public Member Functions
constexpr	face () noexcept=default
	Default construct. More...

	face (const label sz)
	Construct given size, with invalid point labels (-1) More...

	face (const labelUList &list)
	Copy construct from list of point labels. More...

	face (labelList &&list)
	Move construct from list of point labels. More...

	face (std::initializer_list< label > list)
	Copy construct from an initializer list of point labels. More...

template<unsigned N>
	face (const FixedList< label, N > &list)
	Copy construct from list of point labels. More...

	face (const labelUList &list, const labelUList &indices)
	Copy construct from subset of point labels. More...

template<unsigned N>
	face (const labelUList &list, const FixedList< label, N > &indices)
	Copy construct from subset of point labels. More...

	face (const triFace &f)
	Copy construct from triFace. More...

	face (Istream &is)
	Construct from Istream. More...

label	collapse ()
	Collapse face by removing duplicate point labels. More...

void	flip ()
	Flip the face in-place. More...

pointField	points (const UList< point > &points) const
	Return the points corresponding to this face. More...

point	centre (const UList< point > &points) const
	Centre point of face. More...

template<class Type >
Type	average (const UList< point > &meshPoints, const Field< Type > &fld) const
	Calculate average value at centroid of face. More...

vector	areaNormal (const UList< point > &p) const
	The area normal - with magnitude equal to area of face. More...

vector	unitNormal (const UList< point > &p) const
	The unit normal. More...

	FOAM_DEPRECATED_FOR (2018-12, "areaNormal() or unitNormal()") vector normal(const UList< point > &p) const
	Legacy name for areaNormal() More...

scalar	mag (const UList< point > &p) const
	Magnitude of face area. More...

face	reverseFace () const
	Return face with reverse direction. More...

bool	found (const label pointLabel) const
	Return true if the point label is found in face. More...

label	which (const label pointLabel) const
	Find local index on face for the point label,. More...

label	nextLabel (const label i) const
	Next vertex on face. More...

label	prevLabel (const label i) const
	Previous vertex on face. More...

scalar	sweptVol (const UList< point > &oldPoints, const UList< point > &newPoints) const
	Return the volume swept out by the face when its points move. More...

tensor	inertia (const UList< point > &p, const point &refPt=vector::zero, scalar density=1.0) const

pointHit	ray (const point &p, const vector &n, const UList< point > &meshPoints, const intersection::algorithm alg=intersection::FULL_RAY, const intersection::direction dir=intersection::VECTOR) const

pointHit	intersection (const point &p, const vector &q, const point &ctr, const UList< point > &meshPoints, const intersection::algorithm alg, const scalar tol=0.0) const
	Fast intersection with a ray. More...

pointHit	nearestPoint (const point &p, const UList< point > &meshPoints) const
	Return nearest point to face. More...

pointHit	nearestPointClassify (const point &p, const UList< point > &meshPoints, label &nearType, label &nearLabel) const
	Return nearest point to face and classify it: More...

int	sign (const point &p, const UList< point > &points, const scalar tol=SMALL) const

scalar	contactSphereDiameter (const point &p, const vector &n, const UList< point > &meshPoints) const
	Return contact sphere diameter. More...

scalar	areaInContact (const UList< point > &meshPoints, const scalarField &v) const
	Return area in contact, given the displacement in vertices. More...

label	nEdges () const
	Return number of edges. More...

edgeList	edges () const
	Return edges in face point ordering,. More...

edge	faceEdge (const label n) const
	Return n-th face edge. More...

int	edgeDirection (const edge &e) const
	The edge direction on the face. More...

label	longestEdge (const UList< point > &pts) const
	Find the longest edge on a face. More...

label	nTriangles () const
	Number of triangles after splitting. More...

label	nTriangles (const UList< point > &unused) const
	Number of triangles after splitting. More...

label	triangles (const UList< point > &points, label &triI, faceList &triFaces) const
	Split into triangles using existing points. More...

template<int SizeMin>
label	triangles (const UList< point > &points, DynamicList< face, SizeMin > &triFaces) const
	Split into triangles using existing points. More...

label	nTrianglesQuads (const UList< point > &points, label &nTris, label &nQuads) const
	Number of triangles and quads after splitting. More...

label	trianglesQuads (const UList< point > &points, label &triI, label &quadI, faceList &triFaces, faceList &quadFaces) const
	Split into triangles and quads. More...

template<int SizeMin>
Foam::label	triangles (const UList< point > &points, DynamicList< face, SizeMin > &triFaces) const

Public Member Functions inherited from List< label >
constexpr	List () noexcept
	Null constructor. More...

	List (const label len)
	Construct with given size. More...

	List (const label len, const label &val)
	Construct with given size and value for all elements. More...

	List (const label len, const Foam::zero)
	Construct with given size initializing all elements to zero. More...

	List (const Foam::one, const label &val)
	Construct with length=1, copying the value as the only content. More...

	List (const Foam::one, label &&val)
	Construct with length=1, moving the value as the only content. More...

	List (const Foam::one, const Foam::zero)
	Construct with length=1, initializing content to zero. More...

	List (const List< label > &a)
	Copy construct from list. More...

	List (const UList< label > &a)
	Copy construct contents from list. More...

	List (List< label > &a, bool reuse)
	Construct as copy or re-use as specified. More...

	List (const UList< label > &list, const labelUList &indices)
	Copy construct subset of list. More...

	List (const UList< label > &list, const FixedList< label, N > &indices)
	Copy construct subset of list. More...

	List (InputIterator begIter, InputIterator endIter)
	Construct given begin/end iterators. More...

	List (const FixedList< label, N > &list)
	Construct as copy of FixedList<T, N> More...

	List (const PtrList< label > &list)
	Construct as copy of PtrList<T> More...

	List (const SLList< label > &list)
	Construct as copy of SLList<T> More...

	List (const IndirectListBase< label, Addr > &list)
	Construct as copy of IndirectList contents. More...

	List (std::initializer_list< label > list)
	Construct from an initializer list. More...

	List (List< label > &&list)
	Move construct from List. More...

	List (DynamicList< label, SizeMin > &&list)
	Move construct from DynamicList. More...

	List (SortableList< label > &&list)
	Move construct from SortableList. More...

	List (SLList< label > &&list)
	Move construct from SLList. More...

	List (Istream &is)
	Construct from Istream. More...

autoPtr< List< label > >	clone () const
	Clone. More...

	~List ()
	Destructor. More...

void	resize (const label newSize)
	Adjust allocated size of list. More...

void	resize (const label newSize, const label &val)
	Adjust allocated size of list and set val for new elements. More...

void	resize (const label newSize)

void	setSize (const label newSize)
	Alias for resize(const label) More...

void	setSize (const label newSize, const label &val)
	Alias for resize(const label, const T&) More...

void	clear ()
	Clear the list, i.e. set size to zero. More...

void	append (const label &val)
	Append an element at the end of the list. More...

void	append (label &&val)
	Move append an element at the end of the list. More...

void	append (const UList< label > &list)
	Append a List to the end of this list. More...

void	append (const IndirectListBase< label, Addr > &list)
	Append IndirectList contents at the end of this list. More...

void	transfer (List< label > &list)

void	transfer (DynamicList< label, SizeMin > &list)

void	transfer (SortableList< label > &list)

label &	newElmt (const label i)

void	operator= (const UList< label > &a)
	Assignment to UList operator. Takes linear time. More...

void	operator= (const List< label > &list)
	Assignment operator. Takes linear time. More...

void	operator= (const SLList< label > &list)
	Assignment to SLList operator. Takes linear time. More...

void	operator= (const IndirectListBase< label, Addr > &list)
	Assignment from IndirectList. Takes linear time. More...

void	operator= (const FixedList< label, N > &list)
	Copy assignment from FixedList. More...

void	operator= (std::initializer_list< label > list)
	Assignment to an initializer list. More...

void	operator= (const label &val)
	Assignment of all entries to the given value. More...

void	operator= (const Foam::zero)
	Assignment of all entries to zero. More...

void	operator= (List< label > &&list)
	Move assignment. Takes constant time. More...

void	operator= (DynamicList< label, SizeMin > &&list)
	Move assignment. Takes constant time. More...

void	operator= (SortableList< label > &&list)
	Move assignment. Takes constant time. More...

void	operator= (SLList< label > &&list)
	Move assignment. Takes constant time. More...

void	shallowCopy (const UList< label > &)=delete
	No shallowCopy permitted. More...

std::enable_if< std::is_same< bool, TypeT >::value, bool >::type	set (const label i, bool val=true)
	A bitSet::set() method for a list of bool. More...

Static Public Member Functions
static int	compare (const face &a, const face &b)
	Compare faces. More...

static bool	sameVertices (const face &a, const face &b)
	Return true if the faces have the same vertices. More...

Static Public Member Functions inherited from List< label >
static const List< label > &	null ()
	Return a null List. More...

Static Public Attributes
static const char *const	typeName = "face"

Detailed Description

A face is a list of labels corresponding to mesh vertices.

See also: Foam::triFace

Source files

Definition at line 72 of file face.H.

Member Enumeration Documentation

◆ proxType

enum proxType

The proximity classifications.

Enumerator
NONE	Unknown proximity.
POINT	Close to point.
EDGE	Close to edge.

Definition at line 133 of file face.H.

Constructor & Destructor Documentation

◆ face() [1/10]

constexpr face ( )

constexprdefaultnoexcept

Default construct.

Referenced by cellShape::face().

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◆ face() [2/10]

face ( const label sz )

inlineexplicit

Construct given size, with invalid point labels (-1)

Definition at line 45 of file faceI.H.

◆ face() [3/10]

face ( const labelUList & list )

inlineexplicit

Copy construct from list of point labels.

Definition at line 51 of file faceI.H.

◆ face() [4/10]

face ( labelList && list )

inlineexplicit

Move construct from list of point labels.

Definition at line 57 of file faceI.H.

◆ face() [5/10]

face ( std::initializer_list< label > list )

inlineexplicit

Copy construct from an initializer list of point labels.

Definition at line 63 of file faceI.H.

◆ face() [6/10]

face ( const FixedList< label, N > & list )

inlineexplicit

Copy construct from list of point labels.

Definition at line 70 of file faceI.H.

◆ face() [7/10]

face	(	const labelUList &	list,
		const labelUList &	indices
	)

inline

Copy construct from subset of point labels.

Definition at line 76 of file faceI.H.

◆ face() [8/10]

face	(	const labelUList &	list,
		const FixedList< label, N > &	indices
	)

inline

Copy construct from subset of point labels.

Definition at line 84 of file faceI.H.

◆ face() [9/10]

face ( const triFace & f )

Copy construct from triFace.

Definition at line 292 of file face.C.

◆ face() [10/10]

face ( Istream & is )

inline

Construct from Istream.

Definition at line 93 of file faceI.H.

Member Function Documentation

◆ collapse()

Foam::label collapse ( )

Collapse face by removing duplicate point labels.

Returns: the collapsed size

Definition at line 444 of file face.C.

References setSize().

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◆ flip()

void flip ( )

Flip the face in-place.

The starting points of the original and flipped face are identical.

Definition at line 469 of file face.C.

References n, and Foam::Swap().

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◆ points()

Foam::pointField points ( const UList< point > & points ) const

inline

Return the points corresponding to this face.

Definition at line 102 of file faceI.H.

References p.

Referenced by sensitivitySurface::addGeometricSens(), deltaBoundary::cellCenters_d(), NURBS3DVolume::computeControlPointSensitivities(), Bezier::dndbBasedSensitivities(), NURBS3DVolume::dndbBasedSensitivities(), Bezier::dxdbFace(), sensitivitySurfacePoints::finalisePointSensitivities(), NURBS3DVolume::patchDxDbFace(), and advancingFrontAMI::writeIntersectionOBJ().

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◆ centre()

Foam::point centre ( const UList< point > & points ) const

Centre point of face.

Definition at line 483 of file face.C.

References Foam::mag(), nPoints, points, and Foam::Zero.

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◆ average()

Type average	(	const UList< point > &	meshPoints,
		const Field< Type > &	fld
	)		const

Calculate average value at centroid of face.

Definition at line 53 of file faceTemplates.C.

References fld, Foam::mag(), nPoints, and Foam::Zero.

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◆ areaNormal()

Foam::vector areaNormal ( const UList< point > & p ) const

The area normal - with magnitude equal to area of face.

Definition at line 547 of file face.C.

References n, nPoints, p, and Foam::Zero.

◆ unitNormal()

Foam::vector unitNormal ( const UList< point > & p ) const

inline

The unit normal.

Definition at line 122 of file faceI.H.

References Foam::mag(), n, p, s, and Foam::Zero.

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◆ FOAM_DEPRECATED_FOR()

FOAM_DEPRECATED_FOR	(	2018-	12,
		"areaNormal() or unitNormal()"
	)		const &

inline

Legacy name for areaNormal()

Deprecated:: (2018-06) Deprecated for new use

Definition at line 213 of file face.H.

◆ mag()

Foam::scalar mag ( const UList< point > & p ) const

inline

Magnitude of face area.

Definition at line 130 of file faceI.H.

References Foam::mag(), and p.

Referenced by polyPatch::areaFraction(), face::areaInContact(), and cyclicACMIFvPatch::movePoints().

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◆ reverseFace()

Foam::face reverseFace ( ) const

Return face with reverse direction.

The starting points of the original and reverse face are identical.

Definition at line 605 of file face.C.

References UList< T >::size().

Referenced by createShellMesh::setRefinement().

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◆ found()

bool found ( const label pointLabel ) const

inline

Return true if the point label is found in face.

Definition at line 149 of file faceI.H.

References found.

◆ which()

Foam::label which ( const label pointLabel ) const

inline

Find local index on face for the point label,.

Returns: position in face (0,1,2,...) or -1 if not found.

Definition at line 155 of file faceI.H.

References Foam::ListOps::find().

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◆ nextLabel()

Foam::label nextLabel ( const label i ) const

inline

Next vertex on face.

Definition at line 161 of file faceI.H.

Referenced by combineFaces::getOutsideFace(), boundaryCutter::setRefinement(), and tetDecomposer::setRefinement().

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◆ prevLabel()

Foam::label prevLabel ( const label i ) const

inline

Previous vertex on face.

Definition at line 167 of file faceI.H.

Referenced by tetDecomposer::setRefinement().

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◆ sweptVol()

Foam::scalar sweptVol	(	const UList< point > &	oldPoints,
		const UList< point > &	newPoints
	)		const

Return the volume swept out by the face when its points move.

Definition at line 628 of file face.C.

References nPoints, and Foam::constant::mathematical::pi().

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◆ inertia()

Foam::tensor inertia	(	const UList< point > &	p,
		const point &	refPt = `vector::zero`,
		scalar	density = `1.0`
	)		const

Return the inertia tensor, with optional reference point and density specification

Definition at line 707 of file face.C.

References forAll, p, and Foam::Zero.

◆ ray()

Foam::pointHit ray	(	const point &	p,
		const vector &	n,
		const UList< point > &	meshPoints,
		const intersection::algorithm	alg = `intersection::FULL_RAY`,
		const intersection::direction	dir = `intersection::VECTOR`
	)		const

Return potential intersection with face with a ray starting at p, direction n (does not need to be normalized)

Does face-centre decomposition and returns triangle intersection point closest to p. Face-centre is calculated from point average. For a hit, the distance is signed. Positive number represents the point in front of triangle In case of miss the point is the nearest point on the face and the distance is the distance between the intersection point and the original point. The half-ray or full-ray intersection and the contact sphere adjustment of the projection vector is set by the intersection parameters

Definition at line 36 of file faceIntersection.C.

References Foam::average(), PointHit< PointType >::distance(), PointHit< PointType >::eligibleMiss(), f(), PointHit< PointType >::hit(), PointHit< PointType >::hitPoint(), Foam::mag(), PointHit< PointType >::missPoint(), n, nPoints, p, points, PointHit< PointType >::setDistance(), PointHit< PointType >::setHit(), PointHit< PointType >::setMiss(), and PointHit< PointType >::setPoint().

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◆ intersection()

Foam::pointHit intersection	(	const point &	p,
		const vector &	q,
		const point &	ctr,
		const UList< point > &	meshPoints,
		const intersection::algorithm	alg,
		const scalar	tol = `0.0`
	)		const

Fast intersection with a ray.

Does face-centre decomposition and returns triangle intersection point closest to p. See triangle::intersection for details.

Definition at line 142 of file faceIntersection.C.

References PointHit< PointType >::distance(), f(), forAll, PointHit< PointType >::hit(), PointHit< PointType >::hitPoint(), Foam::mag(), p, PointHit< PointType >::setDistance(), PointHit< PointType >::setHit(), and PointHit< PointType >::setPoint().

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◆ nearestPoint()

Foam::pointHit nearestPoint	(	const point &	p,
		const UList< point > &	meshPoints
	)		const

Return nearest point to face.

Definition at line 200 of file faceIntersection.C.

References p.

◆ nearestPointClassify()

Foam::pointHit nearestPointClassify	(	const point &	p,
		const UList< point > &	meshPoints,
		label &	nearType,
		label &	nearLabel
	)		const

Return nearest point to face and classify it:

+ near point (nearType=POINT, nearLabel=0, 1, 2) + near edge (nearType=EDGE, nearLabel=0, 1, 2) Note: edges are counted from starting vertex so e.g. edge n is from f[n] to f[0], where the face has n + 1 points

Definition at line 214 of file faceIntersection.C.

References PointHit< PointType >::distance(), f(), PointHit< PointType >::hit(), PointHit< PointType >::hitPoint(), Foam::mag(), PointHit< PointType >::missPoint(), triangle< Point, PointRef >::nearestPointClassify(), nPoints, p, PointHit< PointType >::setDistance(), PointHit< PointType >::setHit(), PointHit< PointType >::setMiss(), and PointHit< PointType >::setPoint().

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◆ sign()

int sign	(	const point &	p,
		const UList< point > &	points,
		const scalar	tol = `SMALL`
	)		const

The sign for the side of the face plane the point is on, using three evenly distributed face points for the estimated normal.

Uses the supplied tolerance for rounding around zero.

Returns

0: on plane
+1: front-side
-1: back-side

Definition at line 315 of file faceIntersection.C.

References p, and points.

◆ contactSphereDiameter()

Foam::scalar contactSphereDiameter	(	const point &	p,
		const vector &	n,
		const UList< point > &	meshPoints
	)		const

Return contact sphere diameter.

Definition at line 36 of file faceContactSphere.C.

References Foam::mag(), n, and p.

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◆ areaInContact()

Foam::scalar areaInContact	(	const UList< point > &	meshPoints,
		const scalarField &	v
	)		const

Return area in contact, given the displacement in vertices.

Definition at line 35 of file faceAreaInContact.C.

References forAll, face::mag(), Foam::mag(), and List< T >::setSize().

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◆ nEdges()

Foam::label nEdges ( ) const

inline

Return number of edges.

Definition at line 136 of file faceI.H.

◆ edges()

Foam::edgeList edges ( ) const

Return edges in face point ordering,.

i.e. edges()[0] is edge between [0] and [1]

Definition at line 742 of file face.C.

References Foam::constant::electromagnetic::e, and points.

Referenced by Foam::polyMeshZipUpCells().

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◆ faceEdge()

Foam::edge faceEdge ( const label n ) const

inline

Return n-th face edge.

Definition at line 143 of file faceI.H.

References n.

Referenced by Foam::checkFireEdges().

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◆ edgeDirection()

int edgeDirection ( const edge & e ) const

The edge direction on the face.

Returns

0: edge not found on the face
+1: forward (counter-clockwise) on the face
-1: reverse (clockwise) on the face

Definition at line 760 of file face.C.

References Foam::constant::electromagnetic::e, and forAll.

◆ longestEdge()

Foam::label longestEdge ( const UList< point > & pts ) const

Find the longest edge on a face.

Definition at line 850 of file face.C.

References forAll.

◆ nTriangles() [1/2]

Foam::label nTriangles ( ) const

inline

Number of triangles after splitting.

Definition at line 173 of file faceI.H.

◆ nTriangles() [2/2]

Foam::label nTriangles ( const UList< point > & unused ) const

Number of triangles after splitting.

Definition at line 803 of file face.C.

◆ triangles() [1/3]

Foam::label triangles	(	const UList< point > &	points,
		label &	triI,
		faceList &	triFaces
	)		const

Split into triangles using existing points.

Result in triFaces[triI..triI+nTri]. Splits intelligently to maximize triangle quality. \Return number of faces created.

Definition at line 810 of file face.C.

References points, and split().

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◆ triangles() [2/3]

label triangles	(	const UList< point > &	points,
		DynamicList< face, SizeMin > &	triFaces
	)		const

Split into triangles using existing points.

Append to DynamicList. \Return number of faces created.

◆ nTrianglesQuads()

Foam::label nTrianglesQuads	(	const UList< point > &	points,
		label &	nTris,
		label &	nQuads
	)		const

Number of triangles and quads after splitting.

Returns the sum of both

Definition at line 824 of file face.C.

References points, and split().

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◆ trianglesQuads()

Foam::label trianglesQuads	(	const UList< point > &	points,
		label &	triI,
		label &	quadI,
		faceList &	triFaces,
		faceList &	quadFaces
	)		const

Split into triangles and quads.

Results in triFaces (starting at triI) and quadFaces (starting at quadI). Returns number of new faces created.

Definition at line 838 of file face.C.

References points, and split().

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◆ compare()

int compare	(	const face &	a,
		const face &	b
	)

static

Compare faces.

Returns

0: different
+1: identical
-1: same face, but different orientation

Definition at line 300 of file face.C.

References CirculatorBase::ANTICLOCKWISE, Foam::constant::physicoChemical::b, ConstCirculator< ContainerType >::circulate(), CirculatorBase::CLOCKWISE, ConstCirculator< ContainerType >::setFulcrumToIterator(), and ConstCirculator< ContainerType >::setIteratorToFulcrum().

Referenced by Foam::operator!=(), and Foam::operator==().

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◆ sameVertices()

bool sameVertices	(	const face &	a,
		const face &	b
	)

static

Return true if the faces have the same vertices.

Definition at line 402 of file face.C.

References Foam::constant::physicoChemical::b, and forAll.

Referenced by blockFace::compare().

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◆ triangles() [3/3]

Foam::label triangles	(	const UList< point > &	points,
		DynamicList< face, SizeMin > &	triFaces
	)		const

Definition at line 35 of file faceTemplates.C.

References points, DynamicList< T, SizeMin >::setSize(), and split().

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Member Data Documentation

◆ typeName

const char *const typeName = "face"

static

Definition at line 143 of file face.H.

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

src/OpenFOAM/meshes/meshShapes/face/face.H
src/OpenFOAM/meshes/meshShapes/face/face.C
src/OpenFOAM/meshes/meshShapes/face/faceAreaInContact.C
src/OpenFOAM/meshes/meshShapes/face/faceContactSphere.C
src/OpenFOAM/meshes/meshShapes/face/faceI.H
src/OpenFOAM/meshes/meshShapes/face/faceIntersection.C
src/OpenFOAM/meshes/meshShapes/face/faceTemplates.C

Public Types

Public Member Functions

Static Public Member Functions

Static Public Attributes

Detailed Description

Member Enumeration Documentation

◆ proxType

Constructor & Destructor Documentation

◆ face() [1/10]

◆ face() [2/10]

◆ face() [3/10]

◆ face() [4/10]

◆ face() [5/10]

◆ face() [6/10]

◆ face() [7/10]

◆ face() [8/10]

◆ face() [9/10]

◆ face() [10/10]

Member Function Documentation

◆ collapse()

◆ flip()

◆ points()

◆ centre()

◆ average()

◆ areaNormal()

◆ unitNormal()

◆ FOAM_DEPRECATED_FOR()

◆ mag()

◆ reverseFace()

◆ found()

◆ which()

◆ nextLabel()

◆ prevLabel()

◆ sweptVol()

◆ inertia()

◆ ray()

◆ intersection()

◆ nearestPoint()

◆ nearestPointClassify()

◆ sign()

◆ contactSphereDiameter()

◆ areaInContact()

◆ nEdges()

◆ edges()

◆ faceEdge()

◆ edgeDirection()

◆ longestEdge()

◆ nTriangles() [1/2]

◆ nTriangles() [2/2]

◆ triangles() [1/3]

◆ triangles() [2/3]

◆ nTrianglesQuads()

◆ trianglesQuads()

◆ compare()

◆ sameVertices()

◆ triangles() [3/3]

Member Data Documentation

◆ typeName