polygon_45_with_holes, LOW == CLOCKWISE, HIGH = COUNTERCLOCKWISE.</td>
          </tr>
          <tr>
            <td width="586"><font face="Courier New">template
&lt;typename T&gt;<br />
coordinate_difference <b>perimeter</b>(const T&amp; polygon)</font></td>
            <td>Returns the perimeter length of an object that models
polygon_45, including the perimeters of the holes.</td>
          </tr>
          <tr>
            <td width="586"><font face="Courier New">template
&lt;typename T, typename transf