AMP::Mesh::ElementFinder Class Reference

A class used to help find the nearest element to a point. More...

#include <MeshUtilities.h>

Public Member Functions
double	distance (const Point &pos, const Point &dir) const
	Calculate the distance to the object given a ray.
	ElementFinder ()
	Empty constructor.
	ElementFinder (const ElementFinder &)=delete
	Copy constructor.
	ElementFinder (ElementFinder &&)=default
	Move constructor.
	ElementFinder (std::shared_ptr< AMP::Mesh::Mesh > mesh)
	Empty constructor.
	ElementFinder (std::shared_ptr< AMP::Mesh::Mesh > mesh, AMP::Mesh::MeshIterator it)
	Empty constructor.
const auto &	getTree () const
	Return the underlying tree.
std::pair< std::unique_ptr< MeshElement >, Point >	nearest (const Point &x) const
	Get the nearest element and point.
ElementFinder &	operator= (ElementFinder &&)=default
	Move operator.
void	update () const
	Ensure the tree is up-to-date.

Private Member Functions
void	initialize () const

Private Attributes
double	d_dist
AMP::Mesh::MeshIterator	d_elements
std::shared_ptr< AMP::Mesh::Mesh >	d_mesh
uint64_t	d_pos_hash
kdtree2< 3, AMP::Mesh::MeshElementID >	d_tree

Detailed Description

A class used to help find the nearest element to a point.

This class provides functions to help find the nearest element to a point

Definition at line 51 of file MeshUtilities.h.

Constructor & Destructor Documentation

ElementFinder() [1/5]

AMP::Mesh::ElementFinder::ElementFinder ( )

inline

Empty constructor.

Definition at line 55 of file MeshUtilities.h.

ElementFinder() [2/5]

AMP::Mesh::ElementFinder::ElementFinder

(

std::shared_ptr< AMP::Mesh::Mesh >

mesh

)

Empty constructor.

ElementFinder() [3/5]

AMP::Mesh::ElementFinder::ElementFinder	(	std::shared_ptr< AMP::Mesh::Mesh >	mesh,
		AMP::Mesh::MeshIterator	it
	)

Empty constructor.

ElementFinder() [4/5]

AMP::Mesh::ElementFinder::ElementFinder ( const ElementFinder &  )

delete

Copy constructor.

ElementFinder() [5/5]

AMP::Mesh::ElementFinder::ElementFinder ( ElementFinder &&  )

default

Move constructor.

Member Function Documentation

distance()

double AMP::Mesh::ElementFinder::distance	(	const Point &	pos,
		const Point &	dir
	)		const

Calculate the distance to the object given a ray.

This function computes the distance to the object given a ray. If the ray is inside the object, this distance is negitive. If the ray will never intersect the object, this distance is inf.

Parameters

[in]	pos	Current position of ray
[in]	dir	Direction of ray (should be normalized for most uses)

Returns

Returns the surface and distance to the nearest surface (intersection = pos + dir*distance)

getTree()

const auto & AMP::Mesh::ElementFinder::getTree ( ) const

inline

Return the underlying tree.

Definition at line 88 of file MeshUtilities.h.

References d_tree.

initialize()

void AMP::Mesh::ElementFinder::initialize ( ) const

private

nearest()

std::pair< std::unique_ptr< MeshElement >, Point > AMP::Mesh::ElementFinder::nearest

(

const Point &

x

)

const

Get the nearest element and point.

operator=()

ElementFinder & AMP::Mesh::ElementFinder::operator= ( ElementFinder &&  )

default

Move operator.

update()

void AMP::Mesh::ElementFinder::update

(

)

const

Ensure the tree is up-to-date.

Member Data Documentation

d_dist

double AMP::Mesh::ElementFinder::d_dist

mutableprivate

Definition at line 100 of file MeshUtilities.h.

d_elements

AMP::Mesh::MeshIterator AMP::Mesh::ElementFinder::d_elements

private

Definition at line 99 of file MeshUtilities.h.

d_mesh

std::shared_ptr<AMP::Mesh::Mesh> AMP::Mesh::ElementFinder::d_mesh

private

Definition at line 97 of file MeshUtilities.h.

d_pos_hash

uint64_t AMP::Mesh::ElementFinder::d_pos_hash

mutableprivate

Definition at line 98 of file MeshUtilities.h.

d_tree

kdtree2<3, AMP::Mesh::MeshElementID> AMP::Mesh::ElementFinder::d_tree

mutableprivate

Definition at line 101 of file MeshUtilities.h.

Referenced by getTree().

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

• src/mesh/MeshUtilities.h