s"></a></span><a class="link" href="begin_rtree______const___.html#geometry.reference.spatial_indexes.group__rtree__functions.begin_rtree______const___.returns">Returns</a>
          </h6>
<p>
            The iterator pointing at the begin of the range.
          </p>
<h6>
<a name="geometry.reference.spatial_indexes.group__rtree__functions.begin_rtree______const___.h3"></a>
            <span class="phrase"><a name="geometry.reference.spatial_indexes.group__rtree__functions.begin_rtree______const___.example"