Standard boundBox + extra functionality for use in octree. More...

Inheritance diagram for treeBoundBox:

Collaboration diagram for treeBoundBox:

Classes
struct	edgeId
	Edges codes. More...

struct	faceBit
	Bits used for face coding. More...

struct	faceId
	Face codes. More...

struct	octantBit
	Bits used for octant/point coding. More...

Public Member Functions
	treeBoundBox ()
	Construct null setting points to zero. More...

	treeBoundBox (const boundBox &bb)
	Construct from a boundBox. More...

	treeBoundBox (const point &min, const point &max)
	Construct from components. More...

	treeBoundBox (const UList< point > &)
	Construct as the bounding box of the given pointField. More...

	treeBoundBox (const UList< point > &, const labelUList &indices)
	Construct as subset of points. More...

template<unsigned Size>
	treeBoundBox (const UList< point > &, const FixedList< label, Size > &indices)
	Construct as subset of points. More...

	treeBoundBox (Istream &)
	Construct from Istream. More...

scalar	typDim () const
	Typical dimension length,height,width. More...

tmp< pointField >	points () const
	Vertex coordinates. In octant coding. More...

point	corner (const direction) const
	Corner point given octant. More...

treeBoundBox	subBbox (const direction) const
	Sub box given by octant number. Midpoint calculated. More...

treeBoundBox	subBbox (const point &mid, const direction) const
	Sub box given by octant number. Midpoint provided. More...

direction	subOctant (const point &pt) const
	Returns octant number given point and the calculated midpoint. More...

direction	subOctant (const point &pt, bool &onEdge) const
	Returns octant number given point and the calculated midpoint. More...

void	searchOrder (const point &pt, FixedList< direction, 8 > &octantOrder) const
	Calculates optimal order to look for nearest to point. More...

bool	intersects (const point &overallStart, const vector &overallVec, const point &start, const point &end, point &pt, direction &ptBits) const
	Intersects segment; set point to intersection position and face,. More...

bool	intersects (const point &start, const point &end, point &pt) const
	Like above but does not return faces point is on. More...

bool	contains (const vector &dir, const point &) const
	Contains point (inside or on edge) and moving in direction. More...

direction	faceBits (const point &) const
	Code position of point on bounding box faces. More...

direction	posBits (const point &) const
	Position of point relative to bounding box. More...

void	calcExtremities (const point &pt, point &nearest, point &furthest) const
	Calculate nearest and furthest (to point) vertex coords of. More...

scalar	maxDist (const point &) const
	Returns distance point to furthest away corner. More...

label	distanceCmp (const point &, const treeBoundBox &other) const
	Compare distance to point with other bounding box. More...

treeBoundBox	extend (const scalar s) const
	Return asymetrically extended bounding box, with guaranteed. More...

void	writeOBJ (const fileName &fName) const

Public Member Functions inherited from boundBox
	boundBox ()
	Construct null, setting points to zero. More...

	boundBox (const point &min, const point &max)
	Construct from components. More...

	boundBox (const UList< point > &, const bool doReduce=true)
	Construct as the bounding box of the given points. More...

	boundBox (const tmp< pointField > &, const bool doReduce=true)
	Construct as the bounding box of the given temporary pointField. More...

	boundBox (const UList< point > &, const labelUList &indices, const bool doReduce=true)
	Construct bounding box as subset of the pointField. More...

template<unsigned Size>
	boundBox (const UList< point > &, const FixedList< label, Size > &indices, const bool doReduce=true)
	Construct bounding box as subset of the pointField. More...

	boundBox (Istream &)
	Construct from Istream. More...

const point &	min () const
	Minimum describing the bounding box. More...

const point &	max () const
	Maximum describing the bounding box. More...

point &	min ()
	Minimum describing the bounding box, non-const access. More...

point &	max ()
	Maximum describing the bounding box, non-const access. More...

point	midpoint () const
	The midpoint of the bounding box. More...

vector	span () const
	The bounding box span (from minimum to maximum) More...

scalar	mag () const
	The magnitude of the bounding box span. More...

scalar	volume () const
	The volume of the bound box. More...

scalar	minDim () const
	Smallest length/height/width dimension. More...

scalar	maxDim () const
	Largest length/height/width dimension. More...

scalar	avgDim () const
	Average length/height/width dimension. More...

tmp< pointField >	points () const
	Return corner points in an order corresponding to a 'hex' cell. More...

void	inflate (const scalar s)
	Inflate box by factor*mag(span) in all dimensions. More...

bool	overlaps (const boundBox &) const
	Overlaps/touches boundingBox? More...

bool	overlaps (const point &, const scalar radiusSqr) const
	Overlaps boundingSphere (centre + sqr(radius))? More...

bool	contains (const point &) const
	Contains point? (inside or on edge) More...

bool	contains (const boundBox &) const
	Fully contains other boundingBox? More...

bool	containsInside (const point &) const
	Contains point? (inside only) More...

bool	contains (const UList< point > &) const
	Contains all of the points? (inside or on edge) More...

bool	contains (const UList< point > &, const labelUList &indices) const
	Contains all of the points? (inside or on edge) More...

template<unsigned Size>
bool	contains (const UList< point > &, const FixedList< label, Size > &indices) const
	Contains all of the points? (inside or on edge) More...

bool	containsAny (const UList< point > &) const
	Contains any of the points? (inside or on edge) More...

bool	containsAny (const UList< point > &, const labelUList &indices) const
	Contains any of the points? (inside or on edge) More...

template<unsigned Size>
bool	containsAny (const UList< point > &, const FixedList< label, Size > &indices) const
	Contains any of the points? (inside or on edge) More...

point	nearest (const point &) const
	Return the nearest point on the boundBox to the supplied point. More...

Static Public Member Functions
static direction	subOctant (const point &mid, const point &pt)
	Returns octant number given point and midpoint. More...

static direction	subOctant (const point &mid, const point &pt, bool &onEdge)
	Returns octant number given point and midpoint. More...

static direction	subOctant (const point &mid, const vector &dir, const point &pt, bool &onEdge)
	Returns octant number given intersection and midpoint. More...

Static Public Member Functions inherited from boundBox
static faceList	faces ()
	Return faces with correct point order. More...

Static Public Attributes
static const scalar	great
	The great value used for greatBox and invertedBox. More...

static const treeBoundBox	greatBox
	As per boundBox::greatBox, but with great instead of vGreat. More...

static const treeBoundBox	invertedBox
	As per boundBox::invertedBox, but with great instead of vGreat. More...

static const faceList	faces
	Face to point addressing. More...

static const edgeList	edges
	Edge to point addressing. More...

static const FixedList< vector, 6 >	faceNormals
	Per face the unit normal. More...

Static Public Attributes inherited from boundBox
static const scalar	great
	The great value used for greatBox and invertedBox. More...

static const boundBox	greatBox
	A very large boundBox: min/max == -/+ vGreat. More...

static const boundBox	invertedBox
	A very large inverted boundBox: min/max == +/- vGreat. More...

Friends
bool	operator== (const treeBoundBox &, const treeBoundBox &)

bool	operator!= (const treeBoundBox &, const treeBoundBox &)

Istream &	operator>> (Istream &is, treeBoundBox &)

Ostream &	operator<< (Ostream &os, const treeBoundBox &)

Detailed Description

Standard boundBox + extra functionality for use in octree.

Numbering of corner points is according to octant numbering.

On the back plane (z=0):

    Y
    ^
    |
    +--------+
    |2      3|
    |        |
    |        |
    |        |
    |0      1|
    +--------+->X

For the front plane add 4 to the point labels.

Source files

Definition at line 87 of file treeBoundBox.H.

Constructor & Destructor Documentation

◆ treeBoundBox() [1/7]

treeBoundBox ( )

inline

Construct null setting points to zero.

Definition at line 31 of file treeBoundBoxI.H.

Referenced by treeBoundBox::treeBoundBox().

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◆ treeBoundBox() [2/7]

treeBoundBox ( const boundBox & bb )

inlineexplicit

Construct from a boundBox.

Definition at line 43 of file treeBoundBoxI.H.

◆ treeBoundBox() [3/7]

treeBoundBox	(	const point &	min,
		const point &	max
	)

inline

Construct from components.

Definition at line 37 of file treeBoundBoxI.H.

◆ treeBoundBox() [4/7]

treeBoundBox ( const UList< point > & points )

explicit

Construct as the bounding box of the given pointField.

Local processor domain only (no reduce as in boundBox)

Definition at line 130 of file treeBoundBox.C.

References UList< T >::empty(), Foam::endl(), treeBoundBox::treeBoundBox(), and WarningInFunction.

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◆ treeBoundBox() [5/7]

treeBoundBox	(	const UList< point > &	points,
		const labelUList &	indices
	)

Construct as subset of points.

Local processor domain only (no reduce as in boundBox)

Definition at line 146 of file treeBoundBox.C.

References UList< T >::empty(), Foam::endl(), and WarningInFunction.

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◆ treeBoundBox() [6/7]

treeBoundBox	(	const UList< point > &	points,
		const FixedList< label, Size > &	indices
	)

Construct as subset of points.

The indices could be from edge/triFace etc. Local processor domain only (no reduce as in boundBox)

Definition at line 35 of file treeBoundBoxTemplates.C.

References UList< T >::empty(), Foam::endl(), and WarningInFunction.

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◆ treeBoundBox() [7/7]

treeBoundBox ( Istream & is )

inline

Construct from Istream.

Definition at line 49 of file treeBoundBoxI.H.

Member Function Documentation

◆ typDim()

Foam::scalar typDim ( ) const

inline

Typical dimension length,height,width.

Definition at line 57 of file treeBoundBoxI.H.

References boundBox::avgDim().

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◆ points()

Foam::tmp< Foam::pointField > points ( ) const

Vertex coordinates. In octant coding.

Definition at line 166 of file treeBoundBox.C.

References treeBoundBox::corner(), forAll, and tmp< T >::ref().

Referenced by searchableBox::boundingSpheres(), searchableBox::coordinates(), indexedOctree< Foam::treeDataFace >::findLine(), dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::findNearest(), searchableBox::points(), and treeBoundBox::writeOBJ().

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◆ corner()

Foam::point corner ( const direction octant ) const

inline

Corner point given octant.

Definition at line 63 of file treeBoundBoxI.H.

References treeBoundBox::octantBit::frontHalf, boundBox::max(), boundBox::min(), treeBoundBox::octantBit::rightHalf, treeBoundBox::octantBit::topHalf, x, and y.

Referenced by treeBoundBox::points().

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◆ subBbox() [1/2]

Foam::treeBoundBox subBbox ( const direction octant ) const

Sub box given by octant number. Midpoint calculated.

Definition at line 180 of file treeBoundBox.C.

References boundBox::midpoint().

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◆ subBbox() [2/2]

Foam::treeBoundBox subBbox	(	const point &	mid,
		const direction	octant
	)		const

Sub box given by octant number. Midpoint provided.

Definition at line 187 of file treeBoundBox.C.

References Foam::abort(), Foam::FatalError, FatalErrorInFunction, treeBoundBox::octantBit::frontHalf, treeBoundBox::intersects(), boundBox::max(), boundBox::min(), treeBoundBox::octantBit::rightHalf, treeBoundBox::octantBit::topHalf, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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◆ subOctant() [1/5]

Foam::direction subOctant ( const point & pt ) const

inline

Returns octant number given point and the calculated midpoint.

Definition at line 75 of file treeBoundBoxI.H.

References boundBox::midpoint().

Referenced by dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::overlaps(), and treeBoundBox::subOctant().

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◆ subOctant() [2/5]

Foam::direction subOctant	(	const point &	mid,
		const point &	pt
	)

inlinestatic

Returns octant number given point and midpoint.

Definition at line 84 of file treeBoundBoxI.H.

References treeBoundBox::octantBit::frontHalf, treeBoundBox::octantBit::rightHalf, treeBoundBox::subOctant(), treeBoundBox::octantBit::topHalf, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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◆ subOctant() [3/5]

Foam::direction subOctant	(	const point &	pt,
		bool &	onEdge
	)		const

inline

Returns octant number given point and the calculated midpoint.

onEdge set if the point is on edge of subOctant

Definition at line 113 of file treeBoundBoxI.H.

References boundBox::midpoint(), and treeBoundBox::subOctant().

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◆ subOctant() [4/5]

Foam::direction subOctant	(	const point &	mid,
		const point &	pt,
		bool &	onEdge
	)

inlinestatic

Returns octant number given point and midpoint.

onEdge set if the point is on edge of subOctant

Definition at line 125 of file treeBoundBoxI.H.

References treeBoundBox::octantBit::frontHalf, treeBoundBox::octantBit::rightHalf, treeBoundBox::subOctant(), treeBoundBox::octantBit::topHalf, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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◆ subOctant() [5/5]

Foam::direction subOctant	(	const point &	mid,
		const vector &	dir,
		const point &	pt,
		bool &	onEdge
	)

inlinestatic

Returns octant number given intersection and midpoint.

onEdge set if the point is on edge of subOctant If onEdge, the direction vector determines which octant to use (acc. to which octant the point would be if it were moved along dir)

Definition at line 170 of file treeBoundBoxI.H.

References treeBoundBox::octantBit::frontHalf, treeBoundBox::octantBit::rightHalf, treeBoundBox::searchOrder(), treeBoundBox::octantBit::topHalf, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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◆ searchOrder()

void searchOrder	(	const point &	pt,
		FixedList< direction, 8 > &	octantOrder
	)		const

inline

Calculates optimal order to look for nearest to point.

First will be the octant containing the point, second the octant with boundary nearest to the point etc.

Definition at line 226 of file treeBoundBoxI.H.

References treeBoundBox::octantBit::frontHalf, boundBox::max(), boundBox::midpoint(), boundBox::min(), treeBoundBox::octantBit::rightHalf, treeBoundBox::octantBit::topHalf, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by treeBoundBox::subOctant().

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◆ intersects() [1/2]

bool intersects	(	const point &	overallStart,
		const vector &	overallVec,
		const point &	start,
		const point &	end,
		point &	pt,
		direction &	ptBits
	)		const

Intersects segment; set point to intersection position and face,.

return true if intersection found. (pt argument used during calculation even if not intersecting). Calculates intersections from outside supplied vector (overallStart, overallVec). This is so when e.g. tracking through lots of consecutive boxes (typical octree) we're not accumulating truncation errors. Set to start, (end-start) if not used.

Definition at line 236 of file treeBoundBox.C.

References treeBoundBox::faceBit::back, treeBoundBox::faceBit::bottom, treeBoundBox::faceBits(), treeBoundBox::faceBit::front, treeBoundBox::faceBit::left, Foam::mag(), boundBox::max(), boundBox::min(), treeBoundBox::posBits(), treeBoundBox::faceBit::right, s(), treeBoundBox::faceBit::top, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by indexedOctree< Foam::treeDataFace >::findLine(), dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::findNearest(), indexedOctree< Foam::treeDataFace >::findNearest(), triangleFuncs::intersectBb(), treeBoundBox::intersects(), NamedEnum< compressibleField, 8 >::names(), treeDataEdge::overlaps(), and treeBoundBox::subBbox().

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◆ intersects() [2/2]

bool intersects	(	const point &	start,
		const point &	end,
		point &	pt
	)		const

Like above but does not return faces point is on.

Definition at line 383 of file treeBoundBox.C.

References treeBoundBox::intersects().

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◆ contains()

bool contains	(	const vector &	dir,
		const point &	pt
	)		const

Contains point (inside or on edge) and moving in direction.

dir would cause it to go inside.

Definition at line 394 of file treeBoundBox.C.

References boundBox::max(), and boundBox::min().

Referenced by dynamicTreeDataPoint::findNearest(), dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::findNearest(), indexedOctree< Foam::treeDataFace >::findNearest(), conformalVoronoiMesh::maxSurfaceProtrusion(), NamedEnum< compressibleField, 8 >::names(), dynamicTreeDataPoint::overlaps(), and treeDataPoint::overlaps().

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◆ faceBits()

Foam::direction faceBits ( const point & pt ) const

Code position of point on bounding box faces.

Definition at line 432 of file treeBoundBox.C.

References treeBoundBox::faceBit::back, treeBoundBox::faceBit::bottom, treeBoundBox::faceBit::front, treeBoundBox::faceBit::left, boundBox::max(), boundBox::min(), treeBoundBox::faceBit::right, treeBoundBox::faceBit::top, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by indexedOctree< Foam::treeDataFace >::findLine(), dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::findNearest(), indexedOctree< Foam::treeDataFace >::findNearest(), and treeBoundBox::intersects().

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◆ posBits()

Foam::direction posBits ( const point & pt ) const

Position of point relative to bounding box.

Definition at line 465 of file treeBoundBox.C.

References treeBoundBox::faceBit::back, treeBoundBox::faceBit::bottom, treeBoundBox::calcExtremities(), treeBoundBox::faceBit::front, treeBoundBox::faceBit::left, boundBox::max(), boundBox::min(), treeBoundBox::faceBit::right, treeBoundBox::faceBit::top, Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by treeDataPrimitivePatch< PatchType >::findIntersection(), indexedOctree< Foam::treeDataFace >::findLine(), dynamicIndexedOctree< Foam::dynamicTreeDataPoint >::findNearest(), indexedOctree< Foam::treeDataFace >::findNearest(), treeBoundBox::intersects(), treeDataCell::findIntersectOp::operator()(), and treeDataFace::findIntersectOp::operator()().

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◆ calcExtremities()

void calcExtremities	(	const point &	pt,
		point &	nearest,
		point &	furthest
	)		const

Calculate nearest and furthest (to point) vertex coords of.

bounding box

Definition at line 500 of file treeBoundBox.C.

References Foam::mag(), boundBox::max(), boundBox::min(), x, Vector< Cmpt >::x(), y, Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by treeBoundBox::distanceCmp(), treeBoundBox::maxDist(), and treeBoundBox::posBits().

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◆ maxDist()

Foam::scalar maxDist ( const point & pt ) const

Returns distance point to furthest away corner.

Definition at line 547 of file treeBoundBox.C.

References treeBoundBox::calcExtremities(), treeBoundBox::distanceCmp(), and Foam::mag().

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◆ distanceCmp()

Foam::label distanceCmp	(	const point &	pt,
		const treeBoundBox &	other
	)		const

Compare distance to point with other bounding box.

return: -1 : all vertices of my bounding box are nearer than any of other +1 : all vertices of my bounding box are further away than any of other 0 : none of the above.

Definition at line 557 of file treeBoundBox.C.

References treeBoundBox::calcExtremities(), Foam::sqr(), Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by treeBoundBox::maxDist().

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◆ extend()

Foam::treeBoundBox extend ( const scalar s ) const

inline

Return asymetrically extended bounding box, with guaranteed.

minimum width of s*mag(span) in any direction

Definition at line 315 of file treeBoundBoxI.H.

References Foam::constant::physicoChemical::b, delta, Foam::mag(), Foam::max(), Foam::sqrt(), VectorSpace< Vector< scalar >, scalar, 3 >::uniform(), Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

Referenced by meshSearch::boundaryTree(), meshSearch::cellTree(), triSurfaceMesh::edgeTree(), patchProbes::findElements(), NamedEnum< compressibleField, 8 >::names(), listPlusEqOp< T >::operator()(), refinementFeatures::regionEdgeTrees(), triSurfaceSearch::tree(), and triSurfaceRegionSearch::treeByRegion().

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◆ writeOBJ()

void writeOBJ ( const fileName & fName ) const

Definition at line 619 of file treeBoundBox.C.

References Foam::e, treeBoundBox::edges, Foam::endl(), forAll, Foam::Info, OFstream::name(), Foam::nl, treeBoundBox::points(), Vector< Cmpt >::x(), Vector< Cmpt >::y(), and Vector< Cmpt >::z().

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Friends And Related Function Documentation

◆ operator==

bool operator==	(	const treeBoundBox &	,
		const treeBoundBox &
	)

friend

◆ operator!=

bool operator!=	(	const treeBoundBox &	,
		const treeBoundBox &
	)

friend

◆ operator>>

Istream& operator>>	(	Istream &	is,
		treeBoundBox &
	)

friend

◆ operator<<

Ostream& operator<<	(	Ostream &	os,
		const treeBoundBox &
	)

friend

Member Data Documentation

◆ great

const Foam::scalar great

static

The great value used for greatBox and invertedBox.

Definition at line 102 of file treeBoundBox.H.

◆ greatBox

const Foam::treeBoundBox greatBox

static

As per boundBox::greatBox, but with great instead of vGreat.

Definition at line 105 of file treeBoundBox.H.

◆ invertedBox

const Foam::treeBoundBox invertedBox

static

As per boundBox::invertedBox, but with great instead of vGreat.

Definition at line 108 of file treeBoundBox.H.

◆ faces

const Foam::faceList faces

static

Face to point addressing.

Definition at line 175 of file treeBoundBox.H.

◆ edges

const Foam::edgeList edges

static

Edge to point addressing.

Definition at line 178 of file treeBoundBox.H.

Referenced by treeBoundBox::writeOBJ().

◆ faceNormals

const Foam::FixedList< Foam::vector, 6 > faceNormals

static

Per face the unit normal.

Definition at line 181 of file treeBoundBox.H.

Referenced by searchableBox::getNormal().

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

src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.H
src/OpenFOAM/meshes/treeBoundBox/treeBoundBox.C
src/OpenFOAM/meshes/treeBoundBox/treeBoundBoxI.H
src/OpenFOAM/meshes/treeBoundBox/treeBoundBoxTemplates.C

Classes

Public Member Functions

Static Public Member Functions

Static Public Attributes

Friends

Detailed Description

Constructor & Destructor Documentation

◆ treeBoundBox() [1/7]

◆ treeBoundBox() [2/7]

◆ treeBoundBox() [3/7]

◆ treeBoundBox() [4/7]

◆ treeBoundBox() [5/7]

◆ treeBoundBox() [6/7]

◆ treeBoundBox() [7/7]

Member Function Documentation

◆ typDim()

◆ points()

◆ corner()

◆ subBbox() [1/2]

◆ subBbox() [2/2]

◆ subOctant() [1/5]

◆ subOctant() [2/5]

◆ subOctant() [3/5]

◆ subOctant() [4/5]

◆ subOctant() [5/5]

◆ searchOrder()

◆ intersects() [1/2]

◆ intersects() [2/2]

◆ contains()

◆ faceBits()

◆ posBits()

◆ calcExtremities()

◆ maxDist()

◆ distanceCmp()

◆ extend()

◆ writeOBJ()

Friends And Related Function Documentation

◆ operator==

◆ operator!=

◆ operator>>

◆ operator<<

Member Data Documentation

◆ great

◆ greatBox

◆ invertedBox

◆ faces

◆ edges

◆ faceNormals