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| <div class="titlepage"><div><div><h5 class="title"> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring"></a><a class="link" href="boost_geometry_register_linestring.html" title="BOOST_GEOMETRY_REGISTER_LINESTRING">BOOST_GEOMETRY_REGISTER_LINESTRING</a> |
| </h5></div></div></div> |
| <p> |
| <a class="indexterm" name="id807782"></a> |
| Macro to register a linestring. |
| </p> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.description"></a><h6> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.description-heading"></a> |
| <a class="link" href="boost_geometry_register_linestring.html#geometry.reference.adapted.register.boost_geometry_register_linestring.description">Description</a> |
| </h6> |
| <p> |
| The macro BOOST_GEOMETRY_REGISTER_LINESTRING registers a linestring such |
| that it is recognized by Boost.Geometry and that Boost.Geometry functionality |
| can used with the specified type. The linestring may contain template |
| parameters, which must be specified then. |
| </p> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.synopsis"></a><h6> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.synopsis-heading"></a> |
| <a class="link" href="boost_geometry_register_linestring.html#geometry.reference.adapted.register.boost_geometry_register_linestring.synopsis">Synopsis</a> |
| </h6> |
| <p> |
| |
| </p> |
| <pre class="programlisting"><span class="preprocessor">#define</span> <span class="identifier">BOOST_GEOMETRY_REGISTER_LINESTRING</span><span class="special">(</span><span class="identifier">Linestring</span><span class="special">)</span></pre> |
| <p> |
| </p> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.parameters"></a><h6> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.parameters-heading"></a> |
| <a class="link" href="boost_geometry_register_linestring.html#geometry.reference.adapted.register.boost_geometry_register_linestring.parameters">Parameters</a> |
| </h6> |
| <div class="informaltable"><table class="table"> |
| <colgroup> |
| <col> |
| <col> |
| </colgroup> |
| <thead><tr> |
| <th> |
| <p> |
| Name |
| </p> |
| </th> |
| <th> |
| <p> |
| Description |
| </p> |
| </th> |
| </tr></thead> |
| <tbody><tr> |
| <td> |
| <p> |
| Linestring |
| </p> |
| </td> |
| <td> |
| <p> |
| linestring type to be registered |
| </p> |
| </td> |
| </tr></tbody> |
| </table></div> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.header"></a><h6> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.header-heading"></a> |
| <a class="link" href="boost_geometry_register_linestring.html#geometry.reference.adapted.register.boost_geometry_register_linestring.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="keyword">register</span><span class="special">/</span><span class="identifier">linestring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span></code> |
| </p> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.example"></a><h6> |
| <a name="geometry.reference.adapted.register.boost_geometry_register_linestring.example-heading"></a> |
| <a class="link" href="boost_geometry_register_linestring.html#geometry.reference.adapted.register.boost_geometry_register_linestring.example">Example</a> |
| </h6> |
| <p> |
| Show the use of BOOST_GEOMETRY_REGISTER_LINESTRING |
| </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">point_xy</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="keyword">register</span><span class="special">/</span><span class="identifier">linestring</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> |
| |
| <span class="keyword">typedef</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">d2</span><span class="special">::</span><span class="identifier">point_xy</span><span class="special"><</span><span class="keyword">double</span><span class="special">></span> <span class="identifier">point_2d</span><span class="special">;</span> |
| |
| <span class="identifier">BOOST_GEOMETRY_REGISTER_LINESTRING</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">point_2d</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="comment">// Normal usage of std::</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">vector</span><span class="special"><</span><span class="identifier">point_2d</span><span class="special">></span> <span class="identifier">line</span><span class="special">;</span> |
| <span class="identifier">line</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">point_2d</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">1</span><span class="special">));</span> |
| <span class="identifier">line</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">point_2d</span><span class="special">(</span><span class="number">2</span><span class="special">,</span> <span class="number">2</span><span class="special">));</span> |
| <span class="identifier">line</span><span class="special">.</span><span class="identifier">push_back</span><span class="special">(</span><span class="identifier">point_2d</span><span class="special">(</span><span class="number">3</span><span class="special">,</span> <span class="number">1</span><span class="special">));</span> |
| |
| <span class="comment">// Usage of Boost.Geometry's length and wkt functions</span> |
| <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special"><<</span> <span class="string">"Length: "</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">length</span><span class="special">(</span><span class="identifier">line</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">"WKT: "</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">wkt</span><span class="special">(</span><span class="identifier">line</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">Length: 2.82843 |
| WKT: LINESTRING(1 1,2 2,3 1) |
| </pre> |
| </div> |
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| <td align="left"></td> |
| <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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