Encapsulates data for (indexedOc)tree searches on triSurface. More...

Collaboration diagram for treeDataTriSurface:

Public Member Functions
	ClassName ("treeDataTriSurface")

	treeDataTriSurface (const triSurface &)
	Construct from triSurface. Holds reference. More...

const triSurface &	surface () const

label	size () const

pointField	points () const
	Get representative point cloud for all shapes inside. More...

label	getVolumeType (const indexedOctree< treeDataTriSurface > &, const point &) const
	Get type (inside, outside, mixed, unknown) of point. More...

bool	overlaps (const label index, const treeBoundBox &sampleBb) const
	Does (bb of) shape at index overlap bb. More...

void	findNearest (const labelList &indices, const point &sample, scalar &nearestDistSqr, label &nearestIndex, point &nearestPoint) const
	Calculates nearest (to sample) point in shape. More...

void	findNearest (const labelList &indices, const linePointRef &ln, treeBoundBox &tightest, label &minIndex, point &linePoint, point &nearestPoint) const
	Calculates nearest (to line) point in shape. More...

bool	intersects (const label index, const point &start, const point &end, point &result) const
	Calculate intersection of triangle with ray. Sets result. More...

Static Private Member Functions
static scalar	nearestCoords (const point &base, const point &E0, const point &E1, const scalar a, const scalar b, const scalar c, const point &P, scalar &s, scalar &t)
	fast triangle nearest point calculation. Returns point in E0, E1 More...

Private Attributes
const triSurface &	surface_

Detailed Description

Encapsulates data for (indexedOc)tree searches on triSurface.

Encapsulates data for (indexedOc)tree searches on a triSurface.

Source files

Definition at line 53 of file treeDataTriSurface.H.

Constructor & Destructor Documentation

◆ treeDataTriSurface()

treeDataTriSurface ( const triSurface & surface )

Construct from triSurface. Holds reference.

Definition at line 182 of file treeDataTriSurface.C.

Member Function Documentation

◆ nearestCoords()

Foam::scalar nearestCoords	(	const point &	base,
		const point &	E0,
		const point &	E1,
		const scalar	a,
		const scalar	b,
		const scalar	c,
		const point &	P,
		scalar &	s,
		scalar &	t
	)

staticprivate

fast triangle nearest point calculation. Returns point in E0, E1

coordinate system: base + s*E0 + t*E1

Definition at line 43 of file treeDataTriSurface.C.

References Foam::constant::physicoChemical::b, Foam::constant::universal::c, Foam::det(), Foam::constant::electromagnetic::e, f(), Foam::mag(), and s().

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◆ ClassName()

ClassName ( "treeDataTriSurface" )

◆ surface()

const triSurface& surface ( ) const

inline

Definition at line 93 of file treeDataTriSurface.H.

References treeDataTriSurface::surface_.

◆ size()

label size ( ) const

inline

Definition at line 98 of file treeDataTriSurface.H.

References List::size(), and treeDataTriSurface::surface_.

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◆ points()

Foam::pointField points ( ) const

Get representative point cloud for all shapes inside.

(one point per shape)

Definition at line 190 of file treeDataTriSurface.C.

References forAll, and points.

◆ getVolumeType()

Foam::label getVolumeType	(	const indexedOctree< treeDataTriSurface > &	tree,
		const point &	sample
	)		const

Get type (inside, outside, mixed, unknown) of point.

Get type of sample (inside/outside/mixed) w.r.t. surface.

with respect to a surface. Only makes sense for closed surfaces.

Definition at line 206 of file treeDataTriSurface.C.

References Foam::abort(), indexedOctree::bb(), Foam::FatalError, FatalErrorIn, indexedOctree::findNearest(), PointIndexHit< Point >::hit(), PointIndexHit< Point >::hitPoint(), PointIndexHit< Point >::index(), triSurfaceTools::INSIDE, Foam::magSqr(), Foam::max(), triSurfaceTools::OUTSIDE, boundBox::span(), Foam::sqr(), triSurfaceTools::surfaceSide(), and triSurfaceTools::UNKNOWN.

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◆ overlaps()

bool overlaps	(	const label	index,
		const treeBoundBox &	sampleBb
	)		const

Does (bb of) shape at index overlap bb.

For testing: robust one

return cubeBb.overlaps(triBb);

Exact test of triangle intersecting bb

Definition at line 265 of file treeDataTriSurface.C.

References treeBoundBox::contains(), f(), triangleFuncs::intersectBb(), boundBox::max(), Foam::max(), boundBox::min(), Foam::min(), treeBoundBox::overlaps(), and points.

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◆ findNearest() [1/2]

void findNearest	(	const labelList &	indices,
		const point &	sample,
		scalar &	nearestDistSqr,
		label &	nearestIndex,
		point &	nearestPoint
	)		const

Calculates nearest (to sample) point in shape.

Returns actual point and distance (squared)

Definition at line 315 of file treeDataTriSurface.C.

References Foam::constant::physicoChemical::b, Foam::constant::universal::c, f(), forAll, points, and s().

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◆ findNearest() [2/2]

void findNearest	(	const labelList &	indices,
		const linePointRef &	ln,
		treeBoundBox &	tightest,
		label &	minIndex,
		point &	linePoint,
		point &	nearestPoint
	)		const

Calculates nearest (to line) point in shape.

Returns point and distance (squared)

Definition at line 398 of file treeDataTriSurface.C.

References notImplemented.

◆ intersects()

bool intersects	(	const label	index,
		const point &	start,
		const point &	end,
		point &	result
	)		const

Calculate intersection of triangle with ray. Sets result.

accordingly

Using exact intersections

pointHit info = f.tri(points).intersectionExact(start, end);

if (info.hit()) { intersectionPoint = info.hitPoint(); } return info.hit();

Definition at line 417 of file treeDataTriSurface.C.

References PointHit::distance(), f(), intersection::HALF_RAY, PointHit::hit(), PointHit::hitPoint(), boundBox::max(), Foam::max(), boundBox::min(), Foam::min(), points, and treeBoundBox::posBits().

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Field Documentation

◆ surface_

const triSurface& surface_

private

Definition at line 57 of file treeDataTriSurface.H.

Referenced by treeDataTriSurface::size(), and treeDataTriSurface::surface().

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

src/immersedBoundary/immersedBoundary/triSurface/treeDataTriSurface/treeDataTriSurface.H
src/immersedBoundary/immersedBoundary/triSurface/treeDataTriSurface/treeDataTriSurface.C

Public Member Functions

Static Private Member Functions

Private Attributes

Detailed Description

Constructor & Destructor Documentation

◆ treeDataTriSurface()

Member Function Documentation

◆ nearestCoords()

◆ ClassName()

◆ surface()

◆ size()

◆ points()

◆ getVolumeType()

◆ overlaps()

◆ findNearest() [1/2]

◆ findNearest() [2/2]

◆ intersects()

Field Documentation

◆ surface_