/../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a> </p></td>
<td valign="top" align="left"><p>
              The last parameter ring_index 0 denotes the first interior ring
            </p></td>
</tr>
</table></div>
<p>
          Output:
        </p>
<pre class="programlisting">(((0, 0), (0, 10), (11, 11), (10, 0), (0, 0)), ((2, 2), (2, 5), (6, 6), (5, 2), (2, 2)))
</pre>
<h6>
<a name="geometry.reference.algorithms.append.h8"></a>
          <span class="phrase"><a name="geometry.reference.a