A triangular face using a FixedList of labels corresponding to mesh vertices. More...

Inheritance diagram for triFace:

Collaboration diagram for triFace:

Classes
struct	Hash
	Deprecated(2021-04) hashing functor. Use hasher() More...

struct	hasher
	Hashing functor for triFace (commutative) More...

Public Member Functions
	triFace ()
	Default construct, with invalid point labels (-1) More...

	triFace (const label a, const label b, const label c)
	Construct from three point labels. More...

	triFace (std::initializer_list< label > list)
	Construct from an initializer list of three point labels. More...

	triFace (const labelUList &list)
	Copy construct from a list of three point labels. More...

	triFace (const labelUList &list, const FixedList< label, 3 > &indices)
	Copy construct from a subset of point labels. More...

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

label &	second ()
	Return second vertex label. More...

label	second () const
	Return second vertex label. More...

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

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

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

face	triFaceFace () const
	Return triangle as a face. More...

triPointRef	tri (const UList< point > &points) const
	Return the triangle. More...

point	centre (const UList< point > &points) const
	Return centre (centroid) More...

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

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

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

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

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

label	nTriangles () const noexcept
	Number of triangles after splitting == 1. More...

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

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

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

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

label	thisLabel (const label i) const

scalar	sweptVol (const UList< point > &opts, const UList< point > &npts) const
	Return swept-volume from old-points to new-points. More...

tensor	inertia (const UList< point > &points, const point &refPt=vector::zero, scalar density=1.0) const
	Return the inertia tensor, with optional reference. More...

pointHit	ray (const point &p, const vector &q, const UList< point > &points, const intersection::algorithm=intersection::FULL_RAY, const intersection::direction dir=intersection::VECTOR) const
	Return point intersection with a ray starting at p, in direction q. More...

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

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

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

pointHit	nearestPointClassify (const point &p, const UList< point > &points, 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
	The sign for which side of the face plane the point is on. More...

label	nEdges () const noexcept
	Return number of edges == 3. More...

Foam::edge	edge (const label edgei) const
	Return i-th face edge (forward walk order). More...

vector	edge (const label edgei, const UList< point > &pts) const
	Return vector of i-th face edge (forward walk order). More...

Foam::edge	rcEdge (const label edgei) const
	Return i-th face edge in reverse walk order. More...

vector	rcEdge (const label edgei, const UList< point > &pts) const
	Return vector of i-th face edge in reverse walk order. More...

edgeList	edges () const
	Return list of edges in forward walk order. More...

edgeList	rcEdges () const
	Return list of edges in reverse walk order. More...

int	edgeDirection (const Foam::edge &e) const
	Test the edge direction on the face. More...

unsigned	hash_code (unsigned seed=0) const
	The (commutative) hash value for triFace. More...

Foam::edge	faceEdge (label edgei) const
	Identical to edge() More...

Public Member Functions inherited from FixedList< label, 3 >
void	writeEntry (const word &keyword, Ostream &os) const
	Write the list as a dictionary entry with keyword. More...

	FixedList ()=default
	Default construct. More...

	FixedList (const label &val)
	Construct and initialize all entries to given value. More...

	FixedList (const Foam::zero)
	Construct and initialize all entries to zero. More...

	FixedList (const label list[N])
	Copy construct from C-array (deprecated) More...

	FixedList (const FixedList< label, N > &list)
	Copy construct. More...

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

	FixedList (std::initializer_list< label > list)
	Construct from an initializer list. Runtime size check. More...

	FixedList (const UList< label > &list)
	Construct from UList. Runtime size check. More...

	FixedList (const FixedList< label, AnyNum > &list, const FixedList< label, N > &indices)
	Copy construct from a subset of the input. No size check. More...

	FixedList (const UList< label > &list, const FixedList< label, N > &indices)
	Copy construct from a subset of the input. No size check. More...

	FixedList (const SLList< label > &list)
	Construct from SLList. Runtime size check. More...

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

autoPtr< FixedList< label, N > >	clone () const
	Clone. More...

const label *	cdata () const noexcept
	Return pointer to the underlying array serving as data storage. More...

label *	data () noexcept
	Return pointer to the underlying array serving as data storage. More...

const char *	cdata_bytes () const noexcept
	Return pointer to the underlying array serving as data storage,. More...

char *	data_bytes () noexcept
	Return pointer to the underlying array serving as data storage,. More...

label &	first () noexcept
	The first element of the list, position [0]. More...

const label &	first () const noexcept
	The first element of the list, position [0]. More...

label &	last () noexcept
	The last element of the list, position [N-1]. More...

const label &	last () const noexcept
	The last element of the list, position [N-1]. More...

label	fcIndex (const label i) const

const label &	fcValue (const label i) const
	Return forward circular value (ie, next value in the list) More...

label &	fcValue (const label i)
	Return forward circular value (ie, next value in the list) More...

label	rcIndex (const label i) const

const label &	rcValue (const label i) const
	Return reverse circular value (ie, previous value in the list) More...

label &	rcValue (const label i)
	Return reverse circular value (ie, previous value in the list) More...

void	checkStart (const label start) const
	Check start is within valid range [0,size) More...

void	checkSize (const label size) const
	Check size is identical to template parameter N. More...

void	checkIndex (const label i) const
	Check index is within valid range [0,N) More...

bool	uniform () const
	True if all entries have identical values, and list is non-empty. More...

label	find (const label &val, label pos=0) const
	Find index of the first occurrence of the value. More...

label	rfind (const label &val, label pos=-1) const
	Find index of the last occurrence of the value. More...

bool	found (const label &val, label pos=0) const
	True if the value if found in the list. More...

void	resize (const label n)
	Dummy function, to make FixedList consistent with List. More...

void	resize_nocopy (const label n)
	Dummy function, to make FixedList consistent with List. More...

void	setSize (const label n)
	Dummy function, to make FixedList consistent with List. More...

void	fill (const label &val)
	Assign all entries to the given value. More...

void	fill (const Foam::zero)
	Assign all entries to zero. More...

void	moveFirst (const label i)
	Move element to the first position. More...

void	moveLast (const label i)
	Move element to the last position. More...

void	swapFirst (const label i)
	Swap element with the first element. More...

void	swapLast (const label i)
	Swap element with the last element. More...

void	transfer (FixedList< label, N > &list)

label &	operator[] (const label i)
	Return element of FixedList. More...

const label &	operator[] (const label i) const
	Return element of constant FixedList. More...

void	operator= (const label list[N])
	Assignment to array operator. Takes linear time. More...

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

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

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

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

void	operator= (const Foam::zero)
	Assign all entries to zero. fill() More...

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

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

iterator	begin () noexcept
	Return an iterator to begin traversing the FixedList. More...

const_iterator	begin () const noexcept
	Return const_iterator to begin traversing the constant FixedList. More...

iterator	end () noexcept
	Return an iterator to end traversing the FixedList. More...

const_iterator	end () const noexcept
	Return const_iterator to end traversing the constant FixedList. More...

const_iterator	cbegin () const noexcept
	Return const_iterator to begin traversing the constant FixedList. More...

const_iterator	cend () const noexcept
	Return const_iterator to end traversing the constant FixedList. More...

reverse_iterator	rbegin ()
	Return reverse_iterator to begin reverse traversing the FixedList. More...

const_reverse_iterator	rbegin () const
	Return const_reverse_iterator to begin reverse traversing FixedList. More...

reverse_iterator	rend ()
	Return reverse_iterator to end reverse traversing the FixedList. More...

const_reverse_iterator	rend () const
	Return const_reverse_iterator to end reverse traversing FixedList. More...

const_reverse_iterator	crbegin () const
	Return const_reverse_iterator to begin reverse traversing FixedList. More...

const_reverse_iterator	crend () const
	Return const_reverse_iterator to end reverse traversing FixedList. More...

void	swap (FixedList< label, N > &other)
	Swap lists by swapping the content of the individual list elements. More...

bool	operator== (const FixedList< label, N > &list) const
	Equality operation on FixedLists of the same type. More...

bool	operator!= (const FixedList< label, N > &list) const
	The opposite of the equality operation. Takes linear time. More...

bool	operator< (const FixedList< label, N > &list) const
	Compare two FixedLists lexicographically. Takes linear time. More...

bool	operator> (const FixedList< label, N > &list) const
	Compare two FixedLists lexicographically. Takes linear time. More...

bool	operator<= (const FixedList< label, N > &list) const
	Return true if !(a > b). Takes linear time. More...

bool	operator>= (const FixedList< label, N > &list) const
	Return true if !(a < b). Takes linear time. More...

Istream &	readList (Istream &is)
	Read from Istream, discarding contents of existing List. More...

Ostream &	writeList (Ostream &os, const label shortLen=0) const
	Write List, with line-breaks in ASCII when length exceeds shortLen. More...

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

Static Public Member Functions inherited from FixedList< label, 3 >
static const FixedList< label, N > &	null ()
	Return a null FixedList. More...

static std::streamsize	size_bytes () noexcept
	Number of contiguous bytes for the list data,. More...

static std::streamsize	byteSize ()

static constexpr bool	empty () noexcept
	Always false since zero-sized FixedList is compile-time disabled. More...

static constexpr label	size () noexcept
	Return the number of elements in the FixedList. More...

static constexpr unsigned	max_size () noexcept
	The dimensioned size (template parameter N) of the FixedList. More...

Additional Inherited Members
Public Types inherited from FixedList< label, 3 >
typedef label	value_type
	The value type the FixedList contains. More...

typedef label *	pointer
	The pointer type for non-const access to value_type items. More...

typedef label &	reference
	The type used for storing into value_type objects. More...

typedef label *	iterator
	Random access iterator for traversing FixedList. More...

typedef label	size_type
	The type to represent the size of a FixedList. More...

typedef label	difference_type
	The difference between iterator objects. More...

typedef std::reverse_iterator< iterator >	reverse_iterator
	Reverse iterator (non-const access) More...

typedef std::reverse_iterator< const_iterator >	const_reverse_iterator
	Reverse iterator (const access) More...

Public Attributes inherited from FixedList< label, 3 >
const typedef label *	const_pointer
	The pointer type for const access to value_type items. More...

const typedef label &	const_reference
	The type used for reading from constant value_type objects. More...

const typedef label *	const_iterator
	Random access iterator for traversing FixedList. More...

Protected Member Functions inherited from FixedList< label, 3 >
void	writeEntry (Ostream &os) const
	Write the FixedList with its compound type. More...

Detailed Description

A triangular face using a FixedList of labels corresponding to mesh vertices.

See also: Foam::face, Foam::triangle

Source files

Definition at line 69 of file triFace.H.

Constructor & Destructor Documentation

◆ triFace() [1/6]

triFace ( )

inline

Default construct, with invalid point labels (-1)

Definition at line 65 of file triFaceI.H.

◆ triFace() [2/6]

triFace	(	const label	a,
		const label	b,
		const label	c
	)

inline

Construct from three point labels.

Definition at line 72 of file triFaceI.H.

References Foam::constant::physicoChemical::b, and Foam::constant::universal::c.

◆ triFace() [3/6]

triFace ( std::initializer_list< label > list )

inlineexplicit

Construct from an initializer list of three point labels.

Definition at line 84 of file triFaceI.H.

◆ triFace() [4/6]

triFace ( const labelUList & list )

inlineexplicit

Copy construct from a list of three point labels.

Definition at line 90 of file triFaceI.H.

◆ triFace() [5/6]

triFace	(	const labelUList &	list,
		const FixedList< label, 3 > &	indices
	)

inline

Copy construct from a subset of point labels.

Definition at line 97 of file triFaceI.H.

◆ triFace() [6/6]

triFace ( Istream & is )

inline

Construct from Istream.

Definition at line 106 of file triFaceI.H.

Member Function Documentation

◆ second() [1/2]

label& second ( )

inline

Return second vertex label.

Definition at line 116 of file triFace.H.

References FixedList< label, 3 >::operator[]().

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◆ second() [2/2]

label second ( ) const

inline

Return second vertex label.

Definition at line 119 of file triFace.H.

References FixedList< label, 3 >::operator[]().

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◆ collapse()

Foam::label collapse ( )

inline

'Collapse' face by marking duplicate point labels.

Duplicates point labels are marked with '-1' (the lower vertex is retained). Return the collapsed size.

Definition at line 114 of file triFaceI.H.

References n.

◆ flip()

void flip ( )

inline

Flip the face in-place.

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

Definition at line 141 of file triFaceI.H.

◆ points()

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

inline

Return the points corresponding to this face.

Definition at line 147 of file triFaceI.H.

References p.

◆ triFaceFace()

Foam::face triFaceFace ( ) const

inline

Return triangle as a face.

Definition at line 159 of file triFaceI.H.

◆ tri()

Foam::triPointRef tri ( const UList< point > & points ) const

inline

Return the triangle.

Definition at line 165 of file triFaceI.H.

References points.

Referenced by lumpedPointMovement::setInterpolator().

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◆ centre()

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

inline

Return centre (centroid)

Definition at line 176 of file triFaceI.H.

References points.

◆ average()

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

Calculate average value at centroid of face.

Definition at line 34 of file triFaceTemplates.C.

References fld.

◆ areaNormal()

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

inline

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

Definition at line 187 of file triFaceI.H.

References points.

◆ unitNormal()

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

inline

The unit normal.

Definition at line 198 of file triFaceI.H.

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

Referenced by wallBoundedParticle::trackToEdge().

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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 158 of file triFace.H.

◆ mag()

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

inline

Magnitude of face area.

Definition at line 206 of file triFaceI.H.

References Foam::mag(), and points.

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◆ nTriangles()

Foam::label nTriangles ( ) const

inlinenoexcept

Number of triangles after splitting == 1.

Definition at line 212 of file triFaceI.H.

◆ reverseFace()

Foam::triFace reverseFace ( ) const

inline

Return face with reverse direction.

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

Definition at line 218 of file triFaceI.H.

References triFace().

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◆ which()

Foam::label which ( const label pointLabel ) const

inline

Find local index on face for the point label, same as find()

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

Definition at line 225 of file triFaceI.H.

References FixedList< T, N >::find().

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◆ nextLabel()

Foam::label nextLabel ( const label i ) const

inline

Next vertex on face.

Definition at line 237 of file triFaceI.H.

◆ prevLabel()

Foam::label prevLabel ( const label i ) const

inline

Previous vertex on face.

Definition at line 243 of file triFaceI.H.

◆ thisLabel()

Foam::label thisLabel ( const label i ) const

inline

The vertex on face - identical to operator[], but with naming similar to nextLabel(), prevLabel()

Definition at line 231 of file triFaceI.H.

◆ sweptVol()

Foam::scalar sweptVol	(	const UList< point > &	opts,
		const UList< point > &	npts
	)		const

inline

Return swept-volume from old-points to new-points.

Definition at line 250 of file triFaceI.H.

◆ inertia()

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

inline

Return the inertia tensor, with optional reference.

point and density specification

Definition at line 283 of file triFaceI.H.

References points.

◆ ray()

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

inline

Return point intersection with a ray starting at p, in direction q.

Definition at line 295 of file triFaceI.H.

References p, and points.

◆ intersection() [1/2]

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

inline

Fast intersection with a ray.

Definition at line 309 of file triFaceI.H.

References p, and points.

◆ intersection() [2/2]

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

inline

Definition at line 322 of file triFaceI.H.

References p, and points.

◆ nearestPoint()

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

inline

Return nearest point to face.

Definition at line 336 of file triFaceI.H.

References p, and points.

◆ nearestPointClassify()

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

inline

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 346 of file triFaceI.H.

References p, and points.

◆ sign()

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

inline

The sign for which side of the face plane the point is on.

Uses the supplied tolerance for rounding around zero.

Returns

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

Definition at line 358 of file triFaceI.H.

References p, and points.

◆ nEdges()

Foam::label nEdges ( ) const

inlinenoexcept

Return number of edges == 3.

Definition at line 368 of file triFaceI.H.

◆ edge() [1/2]

Foam::edge edge ( const label edgei ) const

inline

Return i-th face edge (forward walk order).

The edge 0 is from [0] to [1] and edge 1 is from [1] to [2]

Definition at line 374 of file triFaceI.H.

Referenced by triFace::faceEdge().

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◆ edge() [2/2]

Foam::vector edge	(	const label	edgei,
		const UList< point > &	pts
	)		const

inline

Return vector of i-th face edge (forward walk order).

The edge 0 is from [0] to [1] and edge 1 is from [1] to [2]

Definition at line 381 of file triFaceI.H.

◆ rcEdge() [1/2]

Foam::edge rcEdge ( const label edgei ) const

inline

Return i-th face edge in reverse walk order.

The rcEdge 0 is from [0] to [n-1] and rcEdge 1 is from [n-1] to [n-2]

Definition at line 390 of file triFaceI.H.

◆ rcEdge() [2/2]

Foam::vector rcEdge	(	const label	edgei,
		const UList< point > &	pts
	)		const

inline

Return vector of i-th face edge in reverse walk order.

The rcEdge 0 is from [0] to [n-1] and rcEdge 1 is from [n-1] to [n-2]

Definition at line 400 of file triFaceI.H.

◆ edges()

Foam::edgeList edges ( ) const

inline

Return list of edges in forward walk order.

The edge 0 is from [0] to [1] and edge 1 is from [1] to [2]

Definition at line 412 of file triFaceI.H.

◆ rcEdges()

Foam::edgeList rcEdges ( ) const

inline

Return list of edges in reverse walk order.

The rcEdge 0 is from [0] to [n-1] and rcEdge 1 is from [n-1] to [n-2]

Definition at line 429 of file triFaceI.H.

◆ edgeDirection()

int edgeDirection ( const Foam::edge & e ) const

inline

Test the edge direction on the face.

Returns

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

Definition at line 446 of file triFaceI.H.

References Foam::constant::electromagnetic::e.

◆ compare()

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

inlinestatic

Compare triFaces.

Returns

:

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

Definition at line 36 of file triFaceI.H.

References Foam::constant::physicoChemical::b.

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

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◆ hash_code()

unsigned hash_code ( unsigned seed = 0 ) const

inline

The (commutative) hash value for triFace.

Definition at line 320 of file triFace.H.

Referenced by triFace::hasher::operator()().

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◆ faceEdge()

Foam::edge faceEdge ( label edgei ) const

inline

Identical to edge()

Definition at line 353 of file triFace.H.

References triFace::edge().

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

src/OpenFOAM/meshes/meshShapes/triFace/triFace.H
src/OpenFOAM/meshes/meshShapes/triFace/triFaceI.H
src/OpenFOAM/meshes/meshShapes/triFace/triFaceTemplates.C

Classes

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ triFace() [1/6]

◆ triFace() [2/6]

◆ triFace() [3/6]

◆ triFace() [4/6]

◆ triFace() [5/6]

◆ triFace() [6/6]

Member Function Documentation

◆ second() [1/2]

◆ second() [2/2]

◆ collapse()

◆ flip()

◆ points()

◆ triFaceFace()

◆ tri()

◆ centre()

◆ average()

◆ areaNormal()

◆ unitNormal()

◆ FOAM_DEPRECATED_FOR()

◆ mag()

◆ nTriangles()

◆ reverseFace()

◆ which()

◆ nextLabel()

◆ prevLabel()

◆ thisLabel()

◆ sweptVol()

◆ inertia()

◆ ray()

◆ intersection() [1/2]

◆ intersection() [2/2]

◆ nearestPoint()

◆ nearestPointClassify()

◆ sign()

◆ nEdges()

◆ edge() [1/2]

◆ edge() [2/2]

◆ rcEdge() [1/2]

◆ rcEdge() [2/2]

◆ edges()

◆ rcEdges()

◆ edgeDirection()

◆ compare()

◆ hash_code()

◆ faceEdge()