ExtractLevelVisitor< Value, Options, Translator, Box, Allocators > Struct Template Reference

#include <deal.II/numerics/rtree.h>

Inheritance diagram for ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >:

Public Types
using	InternalNode = typename boost::geometry::index::detail::rtree::internal_node< Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag >::type
using	Leaf = typename boost::geometry::index::detail::rtree::leaf< Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag >::type

Public Member Functions
	ExtractLevelVisitor (Translator const &translator, const unsigned int target_level, std::vector< BoundingBox< boost::geometry::dimension< Box >::value >> &boxes)
void	operator() (InternalNode const &node)
void	operator() (Leaf const &)

Public Attributes
const Translator &	translator
size_t	level
const size_t	target_level
std::vector< BoundingBox< boost::geometry::dimension< Box >::value > > &	boxes

Detailed Description

template<typename Value, typename Options, typename Translator, typename Box, typename Allocators>
struct ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >

Helper structure that allows one to extract a level from an RTree as a vector of BoundingBox objects.

This structure implements a boost::geometry::index::detail::rtree::visitor object, allowing one to visit any existing RTree object, and return the vector of bounding boxes associated to a specific target level of the tree.

Although possible, direct usage of this structure is cumbersome. The suggested usage of this class is through the helper function extract_rtree_level().

Author

Luca Heltai, 2020.

Definition at line 187 of file rtree.h.

Member Typedef Documentation

InternalNode

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

using ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::InternalNode = typename boost::geometry::index::detail::rtree::internal_node< Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type

An alias that identifies an InternalNode of the tree.

Definition at line 214 of file rtree.h.

Leaf

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

using ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::Leaf = typename boost::geometry::index::detail::rtree::leaf< Value, typename Options::parameters_type, Box, Allocators, typename Options::node_tag>::type

An alias that identifies a Leaf of the tree.

Definition at line 224 of file rtree.h.

Constructor & Destructor Documentation

ExtractLevelVisitor()

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::ExtractLevelVisitor ( Translator const &  translator, const unsigned int  target_level, std::vector< BoundingBox< boost::geometry::dimension< Box >::value >> &  boxes  )

inline

Construct a vector boxes of BoundingBox objects corresponding to the target_level of the tree.

Member Function Documentation

operator()() [1/2]

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

void ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::operator() ( InternalNode const &  node )

inline

Implements the visitor interface for InternalNode objects. If the node belongs to the target_leve, then fill the bounding box vector.

operator()() [2/2]

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

void ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::operator() ( Leaf const &  )

inline

Implements the visitor interface for Leaf objects.

Member Data Documentation

translator

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

const Translator& ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::translator

Translator interface, required by the boost implementation of the rtree.

Definition at line 242 of file rtree.h.

level

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

size_t ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::level

Store the level we are currently visiting.

Definition at line 247 of file rtree.h.

target_level

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

const size_t ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::target_level

The level we want to extract from the RTree object.

Definition at line 252 of file rtree.h.

boxes

template<typename Value , typename Options , typename Translator , typename Box , typename Allocators >

std::vector<BoundingBox<boost::geometry::dimension<Box>::value> >& ExtractLevelVisitor< Value, Options, Translator, Box, Allocators >::boxes

A reference to the input vector of BoundingBox objects.

Definition at line 257 of file rtree.h.

---

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

• include/deal.II/numerics/rtree.h