qbegin(rtree<...> const &, Predicates const &)

Returns the query iterator pointing at the begin of the query range.

Description

This method returns the iterator which may be used to perform iterative queries. For the information about the predicates which may be passed to this method see query().

Synopsis

template<typename Value,
         typename Parameters,
         typename IndexableGetter,
         typename EqualTo,
         typename Allocator,
         typename Predicates>
rtree< Value, Parameters, IndexableGetter, EqualTo, Allocator >::const_query_iterator qbegin(rtree< Value, Parameters, IndexableGetter, EqualTo, Allocator > const & tree, Predicates const & predicates)

Parameter(s)

Type	Name	Description
`rtree< Value, Parameters, IndexableGetter, EqualTo, Allocator > const &`	`tree`	The rtree.
`Predicates const &`	`predicates`	Predicates.

Returns

The iterator pointing at the begin of the query range.

Example

std::for_each(bgi::qbegin(tree, bgi::nearest(pt, 3)), bgi::qend(tree), do_something());

Iterator category

ForwardIterator

Throws

If predicates copy throws. If allocation throws.

	Warning
	The modification of the rtree may invalidate the iterators.