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| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data"></a><a class="link" href="polygon_data.html" title="Boost.Polygon's polygon_data">Boost.Polygon's |
| polygon_data</a> |
| </h5></div></div></div> |
| <p> |
| Boost.Polygon's polygon type (boost::polygon::polygon_data) is adapted |
| to the Boost.Geometry Ring Concept. |
| </p> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.description"></a><h6> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.description-heading"></a> |
| <a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.description">Description</a> |
| </h6> |
| <p> |
| Boost.Polygon's points (as well as polygons) can be used by Boost.Geometry. |
| The two libraries can therefore be used together. Using a boost::polygon::point_data<...>, |
| algorithms from both Boost.Polygon and Boost.Geometry can be called. |
| </p> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.model_of"></a><h6> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.model_of-heading"></a> |
| <a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.model_of">Model |
| of</a> |
| </h6> |
| <p> |
| <a class="link" href="../../concepts/concept_ring.html" title="Ring Concept">Ring Concept</a> |
| </p> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.header"></a><h6> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.header-heading"></a> |
| <a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.header">Header</a> |
| </h6> |
| <p> |
| <code class="computeroutput"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> |
| </p> |
| <p> |
| The standard header <code class="computeroutput"><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span></code> |
| does not include this header. |
| </p> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.example"></a><h6> |
| <a name="geometry.reference.adapted.boost_polygon.polygon_data.example-heading"></a> |
| <a class="link" href="polygon_data.html#geometry.reference.adapted.boost_polygon.polygon_data.example">Example</a> |
| </h6> |
| <p> |
| Shows how to use Boost.Polygon points within Boost.Geometry |
| </p> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">iostream</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| <span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">geometry</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">/</span><span class="identifier">adapted</span><span class="special">/</span><span class="identifier">boost_polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span> |
| <span class="special">{</span> |
| <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">point_data</span><span class="special"><</span><span class="keyword">int</span><span class="special">></span> <span class="identifier">a</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">),</span> <span class="identifier">b</span><span class="special">(</span><span class="number">3</span><span class="special">,</span> <span class="number">4</span><span class="special">);</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Distance (using Boost.Geometry): "</span> |
| <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">distance</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Distance (using Boost.Polygon): "</span> |
| <span class="special"><<</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">polygon</span><span class="special">::</span><span class="identifier">euclidean_distance</span><span class="special">(</span><span class="identifier">a</span><span class="special">,</span> <span class="identifier">b</span><span class="special">)</span> <span class="special"><<</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span> |
| |
| <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span> |
| <span class="special">}</span> |
| |
| </pre> |
| <p> |
| </p> |
| <p> |
| Output: |
| </p> |
| <pre class="programlisting">Distance (using Boost.Geometry): 2.82843 |
| Distance (using Boost.Polygon): 2.82843 |
| </pre> |
| </div> |
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| <td align="right"><div class="copyright-footer">Copyright © 2011 Barend 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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