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<div class="section">
<div class="titlepage"><div><div><h3 class="title">
<a name="geometry.spatial_indexes.creation_and_modification"></a><a class="link" href="creation_and_modification.html" title="Creation and Modification">Creation
and Modification</a>
</h3></div></div></div>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h0"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.template_parameters"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.template_parameters">Template
parameters</a>
</h5>
<p>
R-tree has 5 parameters but only 2 are required:
</p>
<pre class="programlisting"><span class="identifier">rtree</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">,</span>
<span class="identifier">Parameters</span><span class="special">,</span>
<span class="identifier">IndexableGetter</span> <span class="special">=</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">indexable</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;,</span>
<span class="identifier">EqualTo</span> <span class="special">=</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">equal_to</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;,</span>
<span class="identifier">Allocator</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">allocator</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;</span> <span class="special">&gt;</span>
</pre>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<code class="computeroutput">Value</code> - type of object which will be stored in the container,
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">Parameters</span></code> - parameters
type, inserting/splitting algorithm,
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">IndexableGetter</span></code> - function
object translating <code class="computeroutput">Value</code> to <code class="computeroutput">Indexable</code> (<code class="computeroutput">Point</code>
or <code class="computeroutput">Box</code>) which R-tree can handle,
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">EqualTo</span></code> - function object
comparing <code class="computeroutput">Value</code>s,
</li>
<li class="listitem">
<code class="computeroutput"><span class="identifier">Allocator</span></code> - <code class="computeroutput"><span class="identifier">Value</span></code>s allocator, all allocators needed
by the container are created from it.
</li>
</ul></div>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h1"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.values_and_indexables"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.values_and_indexables">Values
and Indexables</a>
</h5>
<p>
R-tree may store <code class="computeroutput">Value</code>s of any type as long as passed function
objects know how to interpret those <code class="computeroutput">Value</code>s, that is extract
an <code class="computeroutput">Indexable</code> that the R-tree can handle and compare <code class="computeroutput">Value</code>s.
The <code class="computeroutput">Indexable</code> is a type adapted to Point, Box or Segment concept.
The examples of rtrees storing <code class="computeroutput">Value</code>s translatable to various
<code class="computeroutput">Indexable</code>s are presented below.
</p>
<div class="informaltable"><table class="table">
<colgroup>
<col>
<col>
<col>
</colgroup>
<thead><tr>
<th>
<p>
rtree&lt;Point, ...&gt;
</p>
</th>
<th>
<p>
rtree&lt;Box, ...&gt;
</p>
</th>
<th>
<p>
rtree&lt;Segment, ...&gt;
</p>
</th>
</tr></thead>
<tbody><tr>
<td>
<p>
<span class="inlinemediaobject"><img src="../../img/index/rtree/rtree_pt.png" alt="rtree_pt"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../img/index/rtree/rstar.png" alt="rstar"></span>
</p>
</td>
<td>
<p>
<span class="inlinemediaobject"><img src="../../img/index/rtree/rtree_seg.png" alt="rtree_seg"></span>
</p>
</td>
</tr></tbody>
</table></div>
<p>
By default function objects <code class="computeroutput"><span class="identifier">index</span><span class="special">::</span><span class="identifier">indexable</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;</span></code> and <code class="computeroutput"><span class="identifier">index</span><span class="special">::</span><span class="identifier">equal_to</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;</span></code> are defined for some typically used
<code class="computeroutput">Value</code> types which may be stored without defining any additional
classes. By default the rtree may store pure <code class="computeroutput">Indexable</code>s, pairs
and tuples. In the case of those two collection types, the <code class="computeroutput">Indexable</code>
must be the first stored type.
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
<code class="computeroutput">Indexable <span class="special">=</span> Point <span class="special">|</span>
Box <span class="special">|</span> <span class="identifier">Segment</span></code>
</li>
<li class="listitem">
<code class="computeroutput">Value <span class="special">=</span> <span class="identifier">Indexable</span>
<span class="special">|</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span>Indexable<span class="special">,</span>
<span class="identifier">T</span><span class="special">&gt;</span>
<span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span>Indexable<span class="special">,</span>
<span class="special">...&gt;</span> <span class="special">[</span>
<span class="special">|</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span>Indexable<span class="special">,</span>
<span class="special">...&gt;</span> <span class="special">]</span></code>
</li>
</ul></div>
<p>
By default <code class="computeroutput"><span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;...&gt;</span></code>
is supported on all compilers. If the compiler supports C++11 tuples and
variadic templates then <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;...&gt;</span></code> may be used "out of the box"
as well.
</p>
<p>
Examples of default <code class="computeroutput">Value</code> types:
</p>
<pre class="programlisting"><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">point</span><span class="special">&lt;...&gt;</span>
<span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special">&lt;...&gt;</span>
<span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">box</span><span class="special">&lt;...&gt;</span>
<span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">segment</span><span class="special">&lt;...&gt;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">box</span><span class="special">&lt;...&gt;,</span> <span class="keyword">unsigned</span><span class="special">&gt;</span>
<span class="identifier">boost</span><span class="special">::</span><span class="identifier">tuple</span><span class="special">&lt;</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">point</span><span class="special">&lt;...&gt;,</span> <span class="keyword">int</span><span class="special">,</span> <span class="keyword">float</span><span class="special">&gt;</span>
</pre>
<p>
The predefined <code class="computeroutput"><span class="identifier">index</span><span class="special">::</span><span class="identifier">indexable</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;</span></code>
returns const reference to the <code class="computeroutput">Indexable</code> stored in the <code class="computeroutput">Value</code>.
</p>
<div class="important"><table border="0" summary="Important">
<tr>
<td rowspan="2" align="center" valign="top" width="25"><img alt="[Important]" src="../../../../../../doc/src/images/important.png"></td>
<th align="left">Important</th>
</tr>
<tr><td align="left" valign="top"><p>
The translation is done quite frequently inside the container - each time
the rtree needs it.
</p></td></tr>
</table></div>
<p>
The predefined <code class="computeroutput"><span class="identifier">index</span><span class="special">::</span><span class="identifier">equal_to</span><span class="special">&lt;</span><span class="identifier">Value</span><span class="special">&gt;</span></code>:
</p>
<div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
<li class="listitem">
for <code class="computeroutput">Point</code>, <code class="computeroutput">Box</code> and <code class="computeroutput"><span class="identifier">Segment</span></code>
- compares <code class="computeroutput">Value</code>s with geometry::equals().
</li>
<li class="listitem">
for <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;...&gt;</span></code>
- compares both components of the <code class="computeroutput">Value</code>. The first value
stored in the pair is compared before the second one. If the value stored
in the pair is a Geometry, <code class="computeroutput"><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">equals</span><span class="special">()</span></code> is used. For other types it uses <code class="computeroutput"><span class="keyword">operator</span><span class="special">==()</span></code>.
</li>
<li class="listitem">
for <code class="computeroutput"><span class="identifier">tuple</span><span class="special">&lt;...&gt;</span></code>
- compares all components of the <code class="computeroutput">Value</code>. If the component
is a <code class="computeroutput"><span class="identifier">Geometry</span></code>, <code class="computeroutput"><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">equals</span><span class="special">()</span></code>
function is used. For other types it uses <code class="computeroutput"><span class="keyword">operator</span><span class="special">==()</span></code>.
</li>
</ul></div>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h2"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.balancing_algorithms_compile_time_parameters"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.balancing_algorithms_compile_time_parameters">Balancing
algorithms compile-time parameters</a>
</h5>
<p>
<code class="computeroutput">Value</code>s may be inserted to the R-tree in many various ways. Final
internal structure of the R-tree depends on algorithms used in the insertion
process and parameters. The most important is nodes' balancing algorithm.
Currently, three well-known types of R-trees may be created.
</p>
<p>
Linear - classic R-tree using balancing algorithm of linear complexity
</p>
<pre class="programlisting"><span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">linear</span><span class="special">&lt;</span><span class="number">16</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">;</span>
</pre>
<p>
Quadratic - classic R-tree using balancing algorithm of quadratic complexity
</p>
<pre class="programlisting"><span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">quadratic</span><span class="special">&lt;</span><span class="number">16</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">;</span>
</pre>
<p>
R*-tree - balancing algorithm minimizing nodes' overlap with forced reinsertions
</p>
<pre class="programlisting"><span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">rstar</span><span class="special">&lt;</span><span class="number">16</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">;</span>
</pre>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h3"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.balancing_algorithms_run_time_parameters"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.balancing_algorithms_run_time_parameters">Balancing
algorithms run-time parameters</a>
</h5>
<p>
Balancing algorithm parameters may be passed to the R-tree in run-time. To
use run-time versions of the R-tree one may pass parameters which names start
with <code class="computeroutput"><span class="identifier">dynamic_</span></code>.
</p>
<pre class="programlisting"><span class="comment">// linear</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span>Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_linear</span><span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_linear</span><span class="special">(</span><span class="number">16</span><span class="special">));</span>
<span class="comment">// quadratic</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span>Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_quadratic</span><span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_quadratic</span><span class="special">(</span><span class="number">16</span><span class="special">));</span>
<span class="comment">// rstar</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span>Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_rstar</span><span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">(</span><span class="identifier">index</span><span class="special">::</span><span class="identifier">dynamic_rstar</span><span class="special">(</span><span class="number">16</span><span class="special">));</span>
</pre>
<p>
The obvious drawback is a slightly slower R-tree.
</p>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h4"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.non_default_parameters"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.non_default_parameters">Non-default
parameters</a>
</h5>
<p>
Non-default R-tree parameters are described in the reference.
</p>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h5"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.copying__moving_and_swapping"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.copying__moving_and_swapping">Copying,
moving and swapping</a>
</h5>
<p>
The R-tree is copyable and movable container. Move semantics is implemented
using Boost.Move library so it's possible to move the container on a compilers
without rvalue references support.
</p>
<pre class="programlisting"><span class="comment">// default constructor</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">rstar</span><span class="special">&lt;</span><span class="number">8</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt1</span><span class="special">;</span>
<span class="comment">// copy constructor</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">rstar</span><span class="special">&lt;</span><span class="number">8</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt2</span><span class="special">(</span><span class="identifier">r1</span><span class="special">);</span>
<span class="comment">// copy assignment</span>
<span class="identifier">rt2</span> <span class="special">=</span> <span class="identifier">r1</span><span class="special">;</span>
<span class="comment">// move constructor</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">rstar</span><span class="special">&lt;</span><span class="number">8</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt3</span><span class="special">(</span><span class="identifier">boost</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span><span class="identifier">rt1</span><span class="special">));</span>
<span class="comment">// move assignment</span>
<span class="identifier">rt3</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">move</span><span class="special">(</span><span class="identifier">rt2</span><span class="special">);</span>
<span class="comment">// swap</span>
<span class="identifier">rt3</span><span class="special">.</span><span class="identifier">swap</span><span class="special">(</span><span class="identifier">rt2</span><span class="special">);</span>
</pre>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h6"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.inserting_and_removing_values"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.inserting_and_removing_values">Inserting
and removing Values</a>
</h5>
<p>
The following code creates an R-tree using quadratic balancing algorithm.
</p>
<pre class="programlisting"><span class="keyword">using</span> <span class="keyword">namespace</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">Box</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;</span> Value<span class="special">;</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">index</span><span class="special">::</span><span class="identifier">quadratic</span><span class="special">&lt;</span><span class="number">16</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">rt</span><span class="special">;</span>
</pre>
<p>
To insert or remove a `Value' by method call one may use the following code.
</p>
<pre class="programlisting">Value <span class="identifier">v</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">make_pair</span><span class="special">(</span>Box<span class="special">(...),</span> <span class="number">0</span><span class="special">);</span>
<span class="identifier">rt</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">v</span><span class="special">);</span>
<span class="identifier">rt</span><span class="special">.</span><span class="identifier">remove</span><span class="special">(</span><span class="identifier">v</span><span class="special">);</span>
</pre>
<p>
To insert or remove a `Value' by function call one may use the following
code.
</p>
<pre class="programlisting">Value <span class="identifier">v</span> <span class="special">=</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">make_pair</span><span class="special">(</span>Box<span class="special">(...),</span> <span class="number">0</span><span class="special">);</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">rt</span><span class="special">,</span> <span class="identifier">v</span><span class="special">);</span>
<span class="identifier">index</span><span class="special">::</span><span class="identifier">remove</span><span class="special">(</span><span class="identifier">rt</span><span class="special">,</span> <span class="identifier">v</span><span class="special">);</span>
</pre>
<p>
Typically you will perform those operations in a loop in order to e.g. insert
some number of <code class="computeroutput">Value</code>s corresponding to geometrical objects (e.g.
<code class="computeroutput"><span class="identifier">Polygons</span></code>) stored in another
container.
</p>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h7"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.additional_interface"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.additional_interface">Additional
interface</a>
</h5>
<p>
The R-tree allows creation, inserting and removing of Values from a range.
The range may be passed as <code class="computeroutput"><span class="special">[</span><span class="identifier">first</span><span class="special">,</span> <span class="identifier">last</span><span class="special">)</span></code> Iterators
pair or as a Range adapted to one of the Boost.Range Concepts.
</p>
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bgi</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">index</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">Box</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;</span> Value<span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">linear</span><span class="special">&lt;</span><span class="number">32</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">RTree</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span>Value<span class="special">&gt;</span> <span class="identifier">values</span><span class="special">;</span>
<span class="comment">/* vector filling code, here */</span>
<span class="comment">// create R-tree with default constructor and insert values with insert(Value const&amp;)</span>
<span class="identifier">RTree</span> <span class="identifier">rt1</span><span class="special">;</span>
<span class="identifier">BOOST_FOREACH</span><span class="special">(</span>Value <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span><span class="special">,</span> <span class="identifier">values</span><span class="special">)</span>
<span class="identifier">rt1</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">v</span><span class="special">);</span>
<span class="comment">// create R-tree with default constructor and insert values with insert(Iter, Iter)</span>
<span class="identifier">RTree</span> <span class="identifier">rt2</span><span class="special">;</span>
<span class="identifier">rt2</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span>
<span class="comment">// create R-tree with default constructor and insert values with insert(Range)</span>
<span class="identifier">RTree</span> <span class="identifier">rt3</span><span class="special">;</span>
<span class="identifier">rt3</span><span class="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">values_range</span><span class="special">);</span>
<span class="comment">// create R-tree with constructor taking Iterators</span>
<span class="identifier">RTree</span> <span class="identifier">rt4</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span>
<span class="comment">// create R-tree with constructor taking Range</span>
<span class="identifier">RTree</span> <span class="identifier">rt5</span><span class="special">(</span><span class="identifier">values_range</span><span class="special">);</span>
<span class="comment">// remove values with remove(Value const&amp;)</span>
<span class="identifier">BOOST_FOREACH</span><span class="special">(</span>Value <span class="keyword">const</span><span class="special">&amp;</span> <span class="identifier">v</span><span class="special">,</span> <span class="identifier">values</span><span class="special">)</span>
<span class="identifier">rt1</span><span class="special">.</span><span class="identifier">remove</span><span class="special">(</span><span class="identifier">v</span><span class="special">);</span>
<span class="comment">// remove values with remove(Iter, Iter)</span>
<span class="identifier">rt2</span><span class="special">.</span><span class="identifier">remove</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">end</span><span class="special">());</span>
<span class="comment">// remove values with remove(Range)</span>
<span class="identifier">rt3</span><span class="special">.</span><span class="identifier">remove</span><span class="special">(</span><span class="identifier">values_range</span><span class="special">);</span>
</pre>
<p>
Furthermore, it's possible to pass a Range adapted by one of the Boost.Range
adaptors into the rtree (more complete example can be found in the <span class="bold"><strong>Examples</strong></span> section).
</p>
<pre class="programlisting"><span class="comment">// create Rtree containing `std::pair&lt;Box, int&gt;` from a container of Boxes on the fly.</span>
<span class="identifier">RTree</span> <span class="identifier">rt6</span><span class="special">(</span><span class="identifier">boxes</span> <span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">adaptors</span><span class="special">::</span><span class="identifier">indexed</span><span class="special">()</span>
<span class="special">|</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">adaptors</span><span class="special">::</span><span class="identifier">transformed</span><span class="special">(</span><span class="identifier">pair_maker</span><span class="special">()));</span>
</pre>
<h5>
<a name="geometry.spatial_indexes.creation_and_modification.h8"></a>
<span class="phrase"><a name="geometry.spatial_indexes.creation_and_modification.insert_iterator"></a></span><a class="link" href="creation_and_modification.html#geometry.spatial_indexes.creation_and_modification.insert_iterator">Insert
iterator</a>
</h5>
<p>
There are functions like <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">copy</span><span class="special">()</span></code>, or R-tree's queries that copy values to
an output iterator. In order to insert values to a container in this kind
of function insert iterators may be used. Geometry.Index provide its own
<code class="computeroutput"><span class="identifier">bgi</span><span class="special">::</span><span class="identifier">insert_iterator</span><span class="special">&lt;</span><span class="identifier">Container</span><span class="special">&gt;</span></code>
which is generated by <code class="computeroutput"><span class="identifier">bgi</span><span class="special">::</span><span class="identifier">inserter</span><span class="special">()</span></code> function.
</p>
<pre class="programlisting"><span class="keyword">namespace</span> <span class="identifier">bgi</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">index</span><span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">pair</span><span class="special">&lt;</span><span class="identifier">Box</span><span class="special">,</span> <span class="keyword">int</span><span class="special">&gt;</span> Value<span class="special">;</span>
<span class="keyword">typedef</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">rtree</span><span class="special">&lt;</span> Value<span class="special">,</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">linear</span><span class="special">&lt;</span><span class="number">32</span><span class="special">&gt;</span> <span class="special">&gt;</span> <span class="identifier">RTree</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special">&lt;</span>Value<span class="special">&gt;</span> <span class="identifier">values</span><span class="special">;</span>
<span class="comment">/* vector filling code, here */</span>
<span class="comment">// create R-tree and insert values from the vector</span>
<span class="identifier">RTree</span> <span class="identifier">rt1</span><span class="special">;</span>
<span class="identifier">std</span><span class="special">::</span><span class="identifier">copy</span><span class="special">(</span><span class="identifier">values</span><span class="special">.</span><span class="identifier">begin</span><span class="special">(),</span> <span class="identifier">values</span><span class="special">.</span><span class="identifier">end</span><span class="special">(),</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">inserter</span><span class="special">(</span><span class="identifier">rt1</span><span class="special">));</span>
<span class="comment">// create R-tree and insert values returned by a query</span>
<span class="identifier">RTree</span> <span class="identifier">rt2</span><span class="special">;</span>
<span class="identifier">rt1</span><span class="special">.</span><span class="identifier">spatial_query</span><span class="special">(</span><span class="identifier">Box</span><span class="special">(/*...*/),</span> <span class="identifier">bgi</span><span class="special">::</span><span class="identifier">inserter</span><span class="special">(</span><span class="identifier">rt2</span><span class="special">));</span>
</pre>
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<td align="right"><div class="copyright-footer">Copyright &#169; 2009-2015 Barend Gehrels, Bruno Lalande,
Mateusz Loskot, Adam Wulkiewicz, Oracle and/or its affiliates<p>
Distributed under the Boost Software License, Version 1.0. (See accompanying
file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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