5794">return_buffer, <a class="indexterm" href="reference/algorithms/buffer/return_buffer.html">return_buffer</a>
</dt>
<dt id="ientry-idm26731">return_centroid, <a class="indexterm" href="reference/algorithms/centroid/return_centroid_1.html">return_centroid</a>, <a class="indexterm" href="reference/algorithms/centroid/return_centroid_2_with_strategy.html">return_centroid
          (with strategy)</a>
</dt>
<dt id="ientry-idm42175">return_envelope, <a class="indexterm" href="reference/algorithms/envelope/re