IndexableGetterFromIndices< Container > Class Template Reference

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

Public Types
using	IndexableGetter = typename boost::geometry::index::indexable< typename Container::value_type >
using	result_type = typename IndexableGetter::result_type
using	size_t = typename Container::size_type

Public Member Functions
	IndexableGetterFromIndices (Container const &c)
result_type	operator() (size_t i) const

Private Attributes
const Container &	container
IndexableGetter	getter

Detailed Description

template<typename Container>
class IndexableGetterFromIndices< Container >

A class that may be used as an IndexableGetter template argument for an RTree that stores indices to entries in a Container type.

This class may be used as a proxy to extract an indexable type from compatible containers. For example:

std::vector<std::pair<Point<dim>, double> > point_temperature = fill();
IndexableGetterFromIndices<decltype(point_temperature)>
   getter(point_temperature);
 
const Point<dim> &p = getter(i); // returns point_temperature[i].first;

This class is used by the pack_rtree_of_indices() function to construct an RTree where the leaves are indices pointing to the entries of the container passed to this class.

Definition at line 196 of file rtree.h.

Member Typedef Documentation

IndexableGetter

template<typename Container >

using IndexableGetterFromIndices< Container >::IndexableGetter = typename boost::geometry::index::indexable<typename Container::value_type>

An alias for the boost type that is used to extract a Point, Segment, or BoundingBox from compatible types (pairs, tuples, etc.).

Definition at line 203 of file rtree.h.

result_type

template<typename Container >

using IndexableGetterFromIndices< Container >::result_type = typename IndexableGetter::result_type

An alias to the actual geometrical type.

Definition at line 209 of file rtree.h.

size_t

template<typename Container >

using IndexableGetterFromIndices< Container >::size_t = typename Container::size_type

An alias to the index type.

Definition at line 214 of file rtree.h.

Constructor & Destructor Documentation

IndexableGetterFromIndices()

template<typename Container >

IndexableGetterFromIndices< Container >::IndexableGetterFromIndices ( Container const &  c )

inlineexplicit

Constructor. Store a const reference to a container.

Definition at line 219 of file rtree.h.

Member Function Documentation

operator()()

template<typename Container >

result_type IndexableGetterFromIndices< Container >::operator() ( size_t  i ) const

inline

Implements the IndexableGetter requirements of the rtree class.

Definition at line 227 of file rtree.h.

Member Data Documentation

container

template<typename Container >

const Container& IndexableGetterFromIndices< Container >::container

private

A const reference to the container.

Definition at line 236 of file rtree.h.

getter

template<typename Container >

IndexableGetter IndexableGetterFromIndices< Container >::getter

private

An instantiation of the getter that allows easy translation from the container value_type and the actual indexable type.

Definition at line 242 of file rtree.h.

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

• include/deal.II/numerics/rtree.h