olves coordinate values of point with the outer
shell and holes of an object that models polygon_45_with_holes.</td>
          </tr>
        </tbody>
      </table>
      <h1>Polygon 45 With Holes Data</h1>
      <p> </p>
      <p>The library provides a model of polygon 45 with holes concept
declared
      <font face="Courier New">template&lt;typename T&gt;
polygon_45_with_holes_data </font>where T is the coordinate type.</p>
      <p>This data type is used internally when a 45 degree polygon
with holes is 