FastTriMeshSDF< T, Meta, BV, K > Class Template Reference

Signed distance function for a triangle mesh. This class uses the full BVH representation. More...

#include <EBGeometry_MeshDistanceFunctions.hpp>

Inheritance diagram for FastTriMeshSDF< T, Meta, BV, K >:

Collaboration diagram for FastTriMeshSDF< T, Meta, BV, K >:

Public Types
using	Mesh = EBGeometry::DCEL::MeshT< T, Meta >
	Alias for DCEL mesh type.
using	Tri = typename EBGeometry::Triangle< T, Meta >
	Alias for DCEL face type.
using	Root = typename EBGeometry::BVH::LinearBVH< T, Tri, BV, K >
	Alias for which BVH root node.
using	Node = typename Root::LinearNode
	Alias for linearized BVH.

Public Member Functions
	FastTriMeshSDF ()=delete
	Default disallowed constructor.
	FastTriMeshSDF (const std::shared_ptr< Mesh > &a_mesh, const BVH::Build a_build=BVH::Build::TopDown) noexcept
	Full constructor. Takes a DCEL mesh and creates the input triangles. Then creates the BVH.
	FastTriMeshSDF (const std::vector< std::shared_ptr< Tri > > &a_triangles, const BVH::Build a_build=BVH::Build::TopDown) noexcept
	Full constructor. Takes the input triangles and creates the BVH.
virtual	~FastTriMeshSDF ()=default
	Destructor.
virtual T	signedDistance (const Vec3T< T > &a_point) const noexcept override
	Value function.
virtual std::vector< std::pair< std::shared_ptr< const Tri >, T > >	getClosestTriangles (const Vec3T< T > &a_point, const bool a_sorted) const noexcept
	Get the closest triangles to the input point.
virtual std::shared_ptr< Root > &	getRoot () noexcept
	Get the bounding volume hierarchy enclosing the mesh.
virtual const std::shared_ptr< Root > &	getRoot () const noexcept
	Get the bounding volume hierarchy enclosing the mesh.
BV	computeBoundingVolume () const noexcept
	Compute bounding volume for this mesh.
Public Member Functions inherited from SignedDistanceFunction< T >
	SignedDistanceFunction ()=default
	Disallowed, use the full constructor.
virtual	~SignedDistanceFunction ()=default
	Destructor (does nothing)
virtual T	value (const Vec3T< T > &a_point) const noexcept override final
	Implementation of ImplicitFunction::value.
virtual Vec3T< T >	normal (const Vec3T< T > &a_point, const T &a_delta) const noexcept
	Signed distance normal vector.
Public Member Functions inherited from ImplicitFunction< T >
	ImplicitFunction ()=default
	Disallowed, use the full constructor.
virtual	~ImplicitFunction ()=default
	Destructor (does nothing)
T	operator() (const Vec3T< T > &a_point) const noexcept
	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 noexcept
	Compute an approximation to the bounding volume for the implicit surface, using octrees.

Protected Attributes
std::shared_ptr< Root >	m_bvh
	Bounding volume hierarchy.

Detailed Description

template<class T, class Meta, class BV, size_t K>
class FastTriMeshSDF< T, Meta, BV, K >

Signed distance function for a triangle mesh. This class uses the full BVH representation.

Constructor & Destructor Documentation

FastTriMeshSDF() [1/2]

template<class T , class Meta , class BV , size_t K>

FastTriMeshSDF< T, Meta, BV, K >::FastTriMeshSDF ( const std::shared_ptr< Mesh > &  a_mesh, const BVH::Build  a_build = BVH::Build::TopDown  )

noexcept

Full constructor. Takes a DCEL mesh and creates the input triangles. Then creates the BVH.

Parameters

[in]	a_mesh	DCEL mesh
[in]	a_build	Specification of build method. Must be TopDown, Morton, or Nested.

FastTriMeshSDF() [2/2]

template<class T , class Meta , class BV , size_t K>

FastTriMeshSDF< T, Meta, BV, K >::FastTriMeshSDF ( const std::vector< std::shared_ptr< Tri > > &  a_triangles, const BVH::Build  a_build = BVH::Build::TopDown  )

noexcept

Full constructor. Takes the input triangles and creates the BVH.

Parameters

[in]	a_triangles	Input triangle soup
[in]	a_build	Specification of build method. Must be TopDown, Morton, or Nested.

Member Function Documentation

getClosestTriangles()

template<class T , class Meta , class BV , size_t K>

virtual std::vector< std::pair< std::shared_ptr< const Tri >, T > > FastTriMeshSDF< T, Meta, BV, K >::getClosestTriangles ( const Vec3T< T > &  a_point, const bool  a_sorted  ) const

virtualnoexcept

Get the closest triangles to the input point.

This returns a list of candidate triangles that are close to the input point. The returned argment consists of the triangles and the unsigned distance to the triangles.

Parameters

[in]	a_point	Input point
[in]	a_sorted	Sort the output vector by distance or not. Closest go first.

Returns

List of candidate triangles (potentially sorted)

signedDistance()

template<class T , class Meta , class BV , size_t K>

virtual T FastTriMeshSDF< T, Meta, BV, K >::signedDistance ( const Vec3T< T > &  a_point ) const

overridevirtualnoexcept

Value function.

Parameters

[in]

a_point

Input point.

Implements SignedDistanceFunction< T >.

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

• /home/runner/work/EBGeometry/EBGeometry/Source/EBGeometry_MeshDistanceFunctions.hpp