="special">.</span><span class="identifier">insert</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">make_pair</span><span class="special">(</span><span class="identifier">b</span><span class="special">,</span> <span class="identifier">i</span><span class="special">));</span>
<span class="special">}</span>
</pre>
<p>
      </p>
<p>
        There are various types of spatial queries that may be performed, they can
        be even co