CGAL 5.1 - dD Spatial Searching
CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree > Class Template Reference

#include <CGAL/Incremental_neighbor_search.h>

Definition

template<typename Traits, typename GeneralDistance, typename Splitter, typename SpatialTree>
class CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >

The class Incremental_neighbor_search implements incremental nearest and furthest neighbor searching on a tree. The tree may have extended or unextended nodes.

Template Parameters
Traitsmust be a model of the concept SearchTraits, for example Search_traits_2<Simple_cartesian<double> >.
GeneralDistancemust be a model of the concept GeneralDistance. If Traits is Search_traits_adapter<Key,PointPropertyMap,BaseTraits> the default type is Distance_adapter<Key,PointPropertyMap,Euclidean_distance<BaseTraits> >, and Euclidean_distance<Traits> otherwise.
Splittermust be a model of the concept Splitter. The default type is Sliding_midpoint<Traits>.
SpatialTreemust be a model of the concept SpatialTree. The default type is Kd_tree<Traits, Splitter, Tag_false, Tag_false>. The third template argument Tag_false makes that the tree is built with unextended nodes.
See also
CGAL::Orthogonal_incremental_neighbor_search<Traits, OrthogonalDistance, Splitter, SpatialTree>

Types

typedef Traits::Point_d Point_d
 Point type. More...
 
typedef Traits::NT NT
 Number type. More...
 
typedef GeneralDistance Distance
 Distance type. More...
 
typedef std::pair< Point_d, NTPoint_with_transformed_distance
 Pair of point and transformed distance. More...
 
typedef unspecified_type iterator
 const input iterator with value type Point_with_transformed_distance for enumerating approximate neighbors. More...
 
GeneralDistance::Query_item Query_item
 Query item type. More...
 
SpatialTree Tree
 The tree type. More...
 

Creation

 Incremental_neighbor_search (Tree &tree, QueryItem q, NT eps=NT(0.0), bool search_nearest=true, GeneralDistance d=GeneralDistance())
 Constructor for incremental neighbor searching of the query item q in the points stored tree using a distance d and approximation factor eps. More...
 

Operations

iterator begin () const
 Returns a const iterator to the approximate nearest or furthest neighbor. More...
 
iterator end () const
 Returns the appropriate past-the-end const iterator. More...
 
std::ostream & statistics (std::ostream &s)
 Inserts statistics of the search process into the output stream s. More...
 

Member Typedef Documentation

◆ Distance

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
typedef GeneralDistance CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Distance

Distance type.

◆ iterator

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
typedef unspecified_type CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::iterator

const input iterator with value type Point_with_transformed_distance for enumerating approximate neighbors.

◆ NT

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
typedef Traits::NT CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::NT

Number type.

◆ Point_d

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
typedef Traits::Point_d CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Point_d

Point type.

◆ Point_with_transformed_distance

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
typedef std::pair<Point_d,NT> CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Point_with_transformed_distance

Pair of point and transformed distance.

Constructor & Destructor Documentation

◆ Incremental_neighbor_search()

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Incremental_neighbor_search ( Tree tree,
QueryItem  q,
NT  eps = NT(0.0),
bool  search_nearest = true,
GeneralDistance  d = GeneralDistance() 
)

Constructor for incremental neighbor searching of the query item q in the points stored tree using a distance d and approximation factor eps.

Member Function Documentation

◆ begin()

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
iterator CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::begin ( ) const

Returns a const iterator to the approximate nearest or furthest neighbor.

◆ end()

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
iterator CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::end ( ) const

Returns the appropriate past-the-end const iterator.

◆ statistics()

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
std::ostream& CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::statistics ( std::ostream &  s)

Inserts statistics of the search process into the output stream s.

Member Data Documentation

◆ Query_item

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
GeneralDistance::Query_item CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Query_item

Query item type.

◆ Tree

template<typename Traits , typename GeneralDistance , typename Splitter , typename SpatialTree >
SpatialTree CGAL::Incremental_neighbor_search< Traits, GeneralDistance, Splitter, SpatialTree >::Tree

The tree type.