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  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="geometry.reference.strategies.strategy_buffer_end_flat"></a><a class="link" href="strategy_buffer_end_flat.html" title="strategy::buffer::end_flat">strategy::buffer::end_flat</a>
  28 </h4></div></div></div>
  29 <p>
  30           <a class="indexterm" name="idp134375360"></a><a class="indexterm" name="idp134376048"></a><a class="indexterm" name="idp134376736"></a>
  31 Let the buffer create flat ends.
  32         </p>
  33 <h6>
  34 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h0"></a>
  35           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.description"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.description">Description</a>
  36         </h6>
  37 <p>
  38           This strategy can be used as EndStrategy for the buffer algorithm. It creates
  39           a flat end for each linestring-end. It can be applied for (multi)linestrings.
  40           Also it is applicable for spikes in (multi)polygons. This strategy is only
  41           applicable for Cartesian coordinate systems.
  42         </p>
  43 <h6>
  44 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h1"></a>
  45           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.synopsis"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.synopsis">Synopsis</a>
  46         </h6>
  47 <p>
  48 </p>
  49 <pre class="programlisting"><span class="keyword">class</span> <span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">end_flat</span>
  50 <span class="special">{</span>
  51   <span class="comment">// ...</span>
  52 <span class="special">};</span>
  53 </pre>
  54 <p>
  55         </p>
  56 <h6>
  57 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h2"></a>
  58           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.header"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.header">Header</a>
  59         </h6>
  60 <p>
  61           <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">strategies</span><span class="special">/</span><span class="identifier">cartesian</span><span class="special">/</span><span class="identifier">buffer_end_flat</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
  62         </p>
  63 <h6>
  64 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h3"></a>
  65           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.example"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.example">Example</a>
  66         </h6>
  67 <p>
  68           Shows how the end_flat strategy can be used as a EndStrategy to create
  69           flat ends
  70         </p>
  71 <p>
  72 </p>
  73 <pre class="programlisting"><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">hpp</span><span class="special">&gt;</span>
  74 <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">geometries</span><span class="special">/</span><span class="identifier">point_xy</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
  75 <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">geometries</span><span class="special">/</span><span class="identifier">geometries</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
  76
  77
  78 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
  79 <span class="special">{</span>
  80     <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">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">point</span><span class="special">;</span>
  81     <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">linestring</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">linestring</span><span class="special">;</span>
  82     <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">polygon</span><span class="special">&lt;</span><span class="identifier">point</span><span class="special">&gt;</span> <span class="identifier">polygon</span><span class="special">;</span>
  83
  84     <span class="comment">// Declare the flat-end strategy</span>
  85     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">end_flat</span> <span class="identifier">end_strategy</span><span class="special">;</span>
  86
  87     <span class="comment">// Declare other strategies</span>
  88     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">distance_symmetric</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">&gt;</span> <span class="identifier">distance_strategy</span><span class="special">(</span><span class="number">1.0</span><span class="special">);</span>
  89     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">side_straight</span> <span class="identifier">side_strategy</span><span class="special">;</span>
  90     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">join_round</span> <span class="identifier">join_strategy</span><span class="special">;</span>
  91     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">strategy</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">::</span><span class="identifier">point_circle</span> <span class="identifier">point_strategy</span><span class="special">;</span>
  92
  93     <span class="comment">// Declare/fill a multi linestring</span>
  94     <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">multi_linestring</span><span class="special">&lt;</span><span class="identifier">linestring</span><span class="special">&gt;</span> <span class="identifier">ml</span><span class="special">;</span>
  95     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">read_wkt</span><span class="special">(</span><span class="string">"MULTILINESTRING((3 5,5 10,7 5),(7 7,11 10,15 7,19 10))"</span><span class="special">,</span> <span class="identifier">ml</span><span class="special">);</span>
  96
  97     <span class="comment">// Create the buffered geometry with flat ends</span>
  98     <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">multi_polygon</span><span class="special">&lt;</span><span class="identifier">polygon</span><span class="special">&gt;</span> <span class="identifier">result</span><span class="special">;</span>
  99     <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">buffer</span><span class="special">(</span><span class="identifier">ml</span><span class="special">,</span> <span class="identifier">result</span><span class="special">,</span>
 100                 <span class="identifier">distance_strategy</span><span class="special">,</span> <span class="identifier">side_strategy</span><span class="special">,</span>
 101                 <span class="identifier">join_strategy</span><span class="special">,</span> <span class="identifier">end_strategy</span><span class="special">,</span> <span class="identifier">point_strategy</span><span class="special">);</span>
 102
 103
 104     <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
 105 <span class="special">}</span>
 106 </pre>
 107 <p>
 108         </p>
 109 <h6>
 110 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h4"></a>
 111           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.output"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.output">Output</a>
 112         </h6>
 113 <p>
 114           <span class="inlinemediaobject"><img src="../../../img/strategies/buffer_end_flat.png" alt="buffer_end_flat"></span>
 115         </p>
 116 <h6>
 117 <a name="geometry.reference.strategies.strategy_buffer_end_flat.h5"></a>
 118           <span class="phrase"><a name="geometry.reference.strategies.strategy_buffer_end_flat.see_also"></a></span><a class="link" href="strategy_buffer_end_flat.html#geometry.reference.strategies.strategy_buffer_end_flat.see_also">See
 119           also</a>
 120         </h6>
 121 <div class="itemizedlist"><ul class="itemizedlist" style="list-style-type: disc; ">
 122 <li class="listitem">
 123               <a class="link" href="../algorithms/buffer/buffer_7_with_strategies.html" title="buffer (with strategies)">buffer
 124               (with strategies)</a>
 125             </li>
 126 <li class="listitem">
 127               <a class="link" href="strategy_buffer_end_round.html" title="strategy::buffer::end_round">end_round</a>
 128             </li>
 129 </ul></div>
 130 </div>
 131 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 132 <td align="left"></td>
 133 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2014 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 134       Wulkiewicz, Oracle and/or its affiliates<p>
 135         Distributed under the Boost Software License, Version 1.0. (See accompanying
 136         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>)
 137       </p>
 138 </div></td>
 139 </tr></table>
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