Eigen::KdBVH< Scalar_, Dim_, _Object > Class Template Reference

Detailed Description

template<typename Scalar_, int Dim_, typename _Object>
class Eigen::KdBVH< Scalar_, Dim_, _Object >

A simple bounding volume hierarchy based on AlignedBox.

Parameters

Scalar_	The underlying scalar type of the bounding boxes
Dim_	The dimension of the space in which the hierarchy lives
<em>Object	The object type that lives in the hierarchy. It must have value semantics. Either bounding_box(_Object) must be defined and return an AlignedBox<Scalar, Dim_> or bounding boxes must be provided to the tree initializer.

This class provides a simple (as opposed to optimized) implementation of a bounding volume hierarchy analogous to a Kd-tree. Given a sequence of objects, it computes their bounding boxes, constructs a Kd-tree of their centers and builds a BVH with the structure of that Kd-tree. When the elements of the tree are too expensive to be copied around, it is useful for _Object to be a pointer.

Public Member Functions
void	getChildren (Index index, VolumeIterator &outVBegin, VolumeIterator &outVEnd, ObjectIterator &outOBegin, ObjectIterator &outOEnd) const
Index	getRootIndex () const
const Volume &	getVolume (Index index) const
template<typename Iter >
void	init (Iter begin, Iter end)
template<typename OIter , typename BIter >
void	init (OIter begin, OIter end, BIter boxBegin, BIter boxEnd)
template<typename Iter >
	KdBVH (Iter begin, Iter end)
template<typename OIter , typename BIter >
	KdBVH (OIter begin, OIter end, BIter boxBegin, BIter boxEnd)

Constructor & Destructor Documentation

KdBVH() [1/2]

template<typename Scalar_ , int Dim_, typename _Object >

template<typename Iter >

Eigen::KdBVH< Scalar_, Dim_, _Object >::KdBVH ( Iter  begin, Iter  end  )

inline

Given an iterator range over Object references, constructs the BVH. Requires that bounding_box(Object) return a Volume.

KdBVH() [2/2]

template<typename Scalar_ , int Dim_, typename _Object >

template<typename OIter , typename BIter >

Eigen::KdBVH< Scalar_, Dim_, _Object >::KdBVH ( OIter  begin, OIter  end, BIter  boxBegin, BIter  boxEnd  )

inline

Given an iterator range over Object references and an iterator range over their bounding boxes, constructs the BVH

Member Function Documentation

getChildren()

template<typename Scalar_ , int Dim_, typename _Object >

void Eigen::KdBVH< Scalar_, Dim_, _Object >::getChildren ( Index  index, VolumeIterator &  outVBegin, VolumeIterator &  outVEnd, ObjectIterator &  outOBegin, ObjectIterator &  outOEnd  ) const

inline

Given an index of a node, on exit, outVBegin and outVEnd range over the indices of the volume children of the node and outOBegin and outOEnd range over the object children of the node

getRootIndex()

template<typename Scalar_ , int Dim_, typename _Object >

Index Eigen::KdBVH< Scalar_, Dim_, _Object >::getRootIndex ( ) const

inline

Returns

the index of the root of the hierarchy

getVolume()

template<typename Scalar_ , int Dim_, typename _Object >

const Volume& Eigen::KdBVH< Scalar_, Dim_, _Object >::getVolume ( Index  index ) const

inline

Returns

the bounding box of the node at index

init() [1/2]

template<typename Scalar_ , int Dim_, typename _Object >

template<typename Iter >

void Eigen::KdBVH< Scalar_, Dim_, _Object >::init ( Iter  begin, Iter  end  )

inline

Given an iterator range over Object references, constructs the BVH, overwriting whatever is in there currently. Requires that bounding_box(Object) return a Volume.

init() [2/2]

template<typename Scalar_ , int Dim_, typename _Object >

template<typename OIter , typename BIter >

void Eigen::KdBVH< Scalar_, Dim_, _Object >::init ( OIter  begin, OIter  end, BIter  boxBegin, BIter  boxEnd  )

inline

Given an iterator range over Object references and an iterator range over their bounding boxes, constructs the BVH, overwriting whatever is in there currently.

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

• KdBVH.h