tr>
          <tr>
            <td width="586"><b><font face="Courier New">coordinate_type</font></b></td>
            <td><font face="Times New Roman">T</font></td>
          </tr>
          <tr>
            <td width="586"><b><font face="Courier New">iterator_type</font></b></td>
            <td>Iterator over vertices point_data&lt;T&gt; vertices of
polygon</td>
          </tr>
          <tr>
            <td width="586"><b><font face="Courier New">iterator_holes_type</font></b></td>
            <td><font 