libs/geometry/doc/html/geometry/reference/access/exterior_ring/exterior_ring_1_const_version.html


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<title>exterior_ring (const version)</title>
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<div class="titlepage"><div><div><h5 class="title">
<a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version"></a><a class="link" href="exterior_ring_1_const_version.html" title="exterior_ring (const version)">exterior_ring
          (const version)</a>
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<p>
            <a class="indexterm" name="id790972"></a>
Function to get the exterior ring of a polygon (const version)
          </p>
<h6>
<a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.h0"></a>
            <span><a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.synopsis"></a></span><a class="link" href="exterior_ring_1_const_version.html#geometry.reference.access.exterior_ring.exterior_ring_1_const_version.synopsis">Synopsis</a>
          </h6>
<p>
</p>
<pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Polygon</span><span class="special">&gt;</span>
<span class="identifier">ring_return_type</span><span class="special">&lt;</span><span class="identifier">Polygon</span> <span class="keyword">const</span><span class="special">&gt;::</span><span class="identifier">type</span> <span class="identifier">exterior_ring</span><span class="special">(</span><span class="identifier">Polygon</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">polygon</span><span class="special">)</span></pre>
<p>
          </p>
<h6>
<a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.h1"></a>
            <span><a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.parameters"></a></span><a class="link" href="exterior_ring_1_const_version.html#geometry.reference.access.exterior_ring.exterior_ring_1_const_version.parameters">Parameters</a>
          </h6>
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<thead><tr>
<th>
                    <p>
                      Type
                    </p>
                  </th>
<th>
                    <p>
                      Concept
                    </p>
                  </th>
<th>
                    <p>
                      Name
                    </p>
                  </th>
<th>
                    <p>
                      Description
                    </p>
                  </th>
</tr></thead>
<tbody><tr>
<td>
                    <p>
                      Polygon const &amp;
                    </p>
                  </td>
<td>
                    <p>
                      polygon type
                    </p>
                  </td>
<td>
                    <p>
                      polygon
                    </p>
                  </td>
<td>
                    <p>
                      the polygon to get the exterior ring from
                    </p>
                  </td>
</tr></tbody>
</table></div>
<h6>
<a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.h2"></a>
            <span><a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.returns"></a></span><a class="link" href="exterior_ring_1_const_version.html#geometry.reference.access.exterior_ring.exterior_ring_1_const_version.returns">Returns</a>
          </h6>
<p>
            a const reference to the exterior ring
          </p>
<h6>
<a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.h3"></a>
            <span><a name="geometry.reference.access.exterior_ring.exterior_ring_1_const_version.header"></a></span><a class="link" href="exterior_ring_1_const_version.html#geometry.reference.access.exterior_ring.exterior_ring_1_const_version.header">Header</a>
          </h6>
<p>
            Either
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
<p>
            Or
          </p>
<p>
            <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">core</span><span class="special">/</span><span class="identifier">exterior_ring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
          </p>
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      Gehrels, Bruno Lalande, Mateusz Loskot<p>
        Distributed under the Boost Software License, Version 1.0. (See accompanying
        file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>)
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