EBGeometry::FlatMeshSDF< T, Meta > Class Template Reference

Signed distance function for a DCEL mesh. Does not use BVHs. More...

#include <EBGeometry_MeshDistanceFunctions.hpp>

Inheritance diagram for EBGeometry::FlatMeshSDF< T, Meta >:

Collaboration diagram for EBGeometry::FlatMeshSDF< T, Meta >:

Public Types
using	Mesh = EBGeometry::DCEL::MeshT< T, Meta >
	Alias for DCEL mesh type.

Public Member Functions
	FlatMeshSDF ()=delete
	Disallowed constructor.
	FlatMeshSDF (const std::shared_ptr< Mesh > &a_mesh) noexcept
	Full constructor.
	~FlatMeshSDF () override=default
	Destructor.
	FlatMeshSDF (const FlatMeshSDF &a_other)=default
	Copy constructor.
FlatMeshSDF &	operator= (const FlatMeshSDF &a_other)=default
	Copy assignment operator.
	FlatMeshSDF (FlatMeshSDF &&a_other) noexcept=default
	Move constructor.
FlatMeshSDF &	operator= (FlatMeshSDF &&a_other) noexcept=default
	Move assignment operator.
T	signedDistance (const Vec3T< T > &a_point) const noexcept override
	Compute the signed distance from a_point to the mesh.
const std::shared_ptr< Mesh >	getMesh () const noexcept
	Get the underlying DCEL mesh.
template<class BV >
BV	computeBoundingVolume () const
	Compute the axis-aligned bounding volume enclosing the mesh.
Public Member Functions inherited from EBGeometry::SignedDistanceFunction< T >
	SignedDistanceFunction ()=default
	Default constructor.
	~SignedDistanceFunction () override=default
	Destructor.
T	value (const Vec3T< T > &a_point) const noexcept final
	Implementation of ImplicitFunction::value; delegates to signedDistance().
virtual Vec3T< T >	normal (const Vec3T< T > &a_point, const T &a_delta) const noexcept
	Compute the outward normal using central finite differences.
Public Member Functions inherited from EBGeometry::ImplicitFunction< T >
	ImplicitFunction ()=default
	Default constructor.
virtual	~ImplicitFunction ()=default
	Default destructor.
T	operator() (const Vec3T< T > &a_point) const noexcept
	Call operator — alternative signature for the value function.
template<class BV >
BV	approximateBoundingVolumeOctree (const Vec3T< T > &a_initialLowCorner, const Vec3T< T > &a_initialHighCorner, const unsigned int a_maxTreeDepth, const T &a_safety=0.0) const
	Compute an approximation to the bounding volume for the implicit surface using octree subdivision.

Protected Attributes
std::shared_ptr< Mesh >	m_mesh
	DCEL mesh.

Detailed Description

template<class T, class Meta = DCEL::DefaultMetaData>
class EBGeometry::FlatMeshSDF< T, Meta >

Signed distance function for a DCEL mesh. Does not use BVHs.

Iterates over every face of the mesh on every query — O(N) per call. Suitable only for very small meshes or debugging.

Template Parameters

T	Floating-point precision type (float or double).
Meta	Triangle metadata type stored on each DCEL face.

Constructor & Destructor Documentation

FlatMeshSDF() [1/3]

template<class T , class Meta = DCEL::DefaultMetaData>

EBGeometry::FlatMeshSDF< T, Meta >::FlatMeshSDF ( const std::shared_ptr< Mesh > &  a_mesh )

noexcept

Full constructor.

Parameters

[in]

a_mesh

Input mesh

FlatMeshSDF() [2/3]

template<class T , class Meta = DCEL::DefaultMetaData>

EBGeometry::FlatMeshSDF< T, Meta >::FlatMeshSDF ( const FlatMeshSDF< T, Meta > &  a_other )

default

Copy constructor.

Explicitly defaulted for documentation purposes: FlatMeshSDF's only member (m_mesh) is a shared_ptr, so the implicitly-generated copy is a cheap, correct handle-copy.

Parameters

[in]

a_other

Other instance to copy.

FlatMeshSDF() [3/3]

template<class T , class Meta = DCEL::DefaultMetaData>

EBGeometry::FlatMeshSDF< T, Meta >::FlatMeshSDF ( FlatMeshSDF< T, Meta > &&  a_other )

defaultnoexcept

Move constructor.

Explicitly defaulted: the user-declared destructor above would otherwise suppress the implicitly-generated move constructor.

Parameters

[in,out]

a_other

Other instance to move from.

Member Function Documentation

computeBoundingVolume()

template<class T , class Meta = DCEL::DefaultMetaData>

template<class BV >

BV EBGeometry::FlatMeshSDF< T, Meta >::computeBoundingVolume

(

)

const

Compute the axis-aligned bounding volume enclosing the mesh.

Template Parameters

BV	Bounding-volume type to construct (e.g. AABBT<T>).

Returns

Bounding volume that encloses all mesh vertices.

getMesh()

template<class T , class Meta = DCEL::DefaultMetaData>

const std::shared_ptr< Mesh > EBGeometry::FlatMeshSDF< T, Meta >::getMesh ( ) const

noexcept

Get the underlying DCEL mesh.

Returns

Shared pointer to the mesh.

operator=() [1/2]

template<class T , class Meta = DCEL::DefaultMetaData>

FlatMeshSDF & EBGeometry::FlatMeshSDF< T, Meta >::operator= ( const FlatMeshSDF< T, Meta > &  a_other )

default

Copy assignment operator.

Parameters

[in]

a_other

Other instance to copy.

Returns

Reference to *this.

operator=() [2/2]

template<class T , class Meta = DCEL::DefaultMetaData>

FlatMeshSDF & EBGeometry::FlatMeshSDF< T, Meta >::operator= ( FlatMeshSDF< T, Meta > &&  a_other )

defaultnoexcept

Move assignment operator.

Parameters

[in,out]

a_other

Other instance to move from.

Returns

Reference to *this.

signedDistance()

template<class T , class Meta = DCEL::DefaultMetaData>

T EBGeometry::FlatMeshSDF< T, Meta >::signedDistance ( const Vec3T< T > &  a_point ) const

overridevirtualnoexcept

Compute the signed distance from a_point to the mesh.

Parameters

[in]

a_point

Query point.

Returns

Signed distance to the nearest face; negative inside the mesh.

Implements EBGeometry::SignedDistanceFunction< T >.

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

• Source/EBGeometry_MeshDistanceFunctions.hpp