EBGeometry::RayDetail::NearestCrossings< T > Struct Template Reference

The nearest crossings of a mesh along a ray, in order, as a BVH walk finds them: at most Capacity, enough for the spans a list holds and one more. More...

#include <EBGeometry_MeshRayForms.hpp>

Collaboration diagram for EBGeometry::RayDetail::NearestCrossings< T >:

Classes
struct	Crossing
	A crossing. More...

Public Member Functions
void	insert (const T a_t, const bool a_entering) noexcept
	Take a crossing.
T	horizon () const noexcept
	How far the crossings are known: the end of the interval, or the farthest held once full.
void	toSpans (const T a_t0, const bool a_inside, RaySpansT< T > &a_spans) const noexcept
	The spans: the crossings paired by the side of the face the ray crosses from.

Public Attributes
Crossing	m_crossings [Capacity]
	The crossings, nearest first.
uint32_t	m_count = 0
	How many are held.
T	m_tMax
	End of the interval.

Static Public Attributes
static constexpr uint32_t	Capacity = 2U * RaySpansT<T>::Capacity + 1U
	Most crossings held.

Detailed Description

template<class T>
struct EBGeometry::RayDetail::NearestCrossings< T >

The nearest crossings of a mesh along a ray, in order, as a BVH walk finds them: at most Capacity, enough for the spans a list holds and one more.

Internal helper; not part of the public API. Once full, a nearer crossing replaces the farthest, and the walk's bound is the farthest, so that it leaves out the boxes beyond; the crossings are then known only up to it.

Template Parameters

T	Floating-point precision.

Member Function Documentation

horizon()

template<class T >

T EBGeometry::RayDetail::NearestCrossings< T >::horizon ( ) const

inlinenoexcept

How far the crossings are known: the end of the interval, or the farthest held once full.

Returns

The distance; also the walk's bound.

insert()

template<class T >

void EBGeometry::RayDetail::NearestCrossings< T >::insert ( const T  a_t, const bool  a_entering  )

inlinenoexcept

Take a crossing.

Parameters

[in]	a_t	Distance along the ray.
[in]	a_entering	Whether the ray enters there.

toSpans()

template<class T >

void EBGeometry::RayDetail::NearestCrossings< T >::toSpans ( const T  a_t0, const bool  a_inside, RaySpansT< T > &  a_spans  ) const

inlinenoexcept

The spans: the crossings paired by the side of the face the ray crosses from.

Parameters

[in]	a_t0	Start of the interval.
[in]	a_inside	Whether the ray is inside at a_t0; read only if there are no crossings.
[out]	a_spans	The list.

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

• Source/EBGeometry_MeshRayForms.hpp