ring, polygon, segment,
          box, and ring
        </p>
<h6>
<a name="geometry.reference.adapted.boost_tuple.h1"></a>
          <span><a name="geometry.reference.adapted.boost_tuple.model_of"></a></span><a class="link" href="boost_tuple.html#geometry.reference.adapted.boost_tuple.model_of">Model
          of</a>
        </h6>
<p>
          <a class="link" href="../concepts/concept_point.html" title="Point Concept">Point Concept</a>
        </p>
<h6>
<a name="geometry.reference.adapted.boost_tuple.h2"><