nal boundary</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> single connected closed polygon with 477 vertices</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> enclosing rectangle: [324.538, 404.786] x [482.4227, 560.6303] units</span>
<span class="r-out co"><span class="r-pr">#&gt;</span>                      (80.25 x 78.21 units)</span>
<span class="r-out co"><span class="r-pr">#&gt;</span> Window area = 4609.41 square units</span>
<span class="r-out co"><span class="r-pr">#&gt;