Public Types | Public Member Functions | List of all members
rtflann::L2< T > Struct Template Reference

#include <dist.h>

Public Types

typedef T ElementType
 
typedef bool is_kdtree_distance
 
typedef Accumulator< T >::Type ResultType
 

Public Member Functions

template<typename U , typename V >
ResultType accum_dist (const U &a, const V &b, int) const
 
template<typename Iterator1 , typename Iterator2 >
ResultType operator() (Iterator1 a, Iterator2 b, size_t size, ResultType worst_dist=-1) const
 

Detailed Description

template<class T>
struct rtflann::L2< T >

Squared Euclidean distance functor, optimized version

Definition at line 133 of file dist.h.

Member Typedef Documentation

◆ ElementType

template<class T>
typedef T rtflann::L2< T >::ElementType

Definition at line 137 of file dist.h.

◆ is_kdtree_distance

template<class T>
typedef bool rtflann::L2< T >::is_kdtree_distance

Definition at line 135 of file dist.h.

◆ ResultType

template<class T>
typedef Accumulator<T>::Type rtflann::L2< T >::ResultType

Definition at line 138 of file dist.h.

Member Function Documentation

◆ accum_dist()

template<class T>
template<typename U , typename V >
ResultType rtflann::L2< T >::accum_dist ( const U &  a,
const V &  b,
int   
) const
inline

Partial euclidean distance, using just one dimension. This is used by the kd-tree when computing partial distances while traversing the tree.

Squared root is omitted for efficiency.

Definition at line 186 of file dist.h.

◆ operator()()

template<class T>
template<typename Iterator1 , typename Iterator2 >
ResultType rtflann::L2< T >::operator() ( Iterator1  a,
Iterator2  b,
size_t  size,
ResultType  worst_dist = -1 
) const
inline

Compute the squared Euclidean distance between two vectors.

This is highly optimised, with loop unrolling, as it is one of the most expensive inner loops.

The computation of squared root at the end is omitted for efficiency.

Definition at line 150 of file dist.h.


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


rtabmap
Author(s): Mathieu Labbe
autogenerated on Mon Jan 23 2023 03:39:00