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  25 <div class="section">
  26 <div class="titlepage"><div><div><h5 class="title">
  27 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy"></a><a class="link" href="expand_3_with_strategy.html" title="expand (with strategy)">expand
  28           (with strategy)</a>
  29 </h5></div></div></div>
  30 <p>
  31             <a class="indexterm" name="idm46186999013440"></a>
  32 Expands (with strategy)
  33           </p>
  34 <h6>
  35 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h0"></a>
  36             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.synopsis"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.synopsis">Synopsis</a>
  37           </h6>
  38 <p>
  39 </p>
  40 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">Box</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Geometry</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">Strategy</span><span class="special">&gt;</span>
  41 <span class="keyword">void</span> <span class="identifier">expand</span><span class="special">(</span><span class="identifier">Box</span> <span class="special">&amp;</span> <span class="identifier">box</span><span class="special">,</span> <span class="identifier">Geometry</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">geometry</span><span class="special">,</span> <span class="identifier">Strategy</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">strategy</span><span class="special">)</span></pre>
  42 <p>
  43           </p>
  44 <h6>
  45 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h1"></a>
  46             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.parameters"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.parameters">Parameters</a>
  47           </h6>
  48 <div class="informaltable"><table class="table">
  49 <colgroup>
  50 <col>
  51 <col>
  52 <col>
  53 <col>
  54 </colgroup>
  55 <thead><tr>
  56 <th>
  57                     <p>
  58                       Type
  59                     </p>
  60                   </th>
  61 <th>
  62                     <p>
  63                       Concept
  64                     </p>
  65                   </th>
  66 <th>
  67                     <p>
  68                       Name
  69                     </p>
  70                   </th>
  71 <th>
  72                     <p>
  73                       Description
  74                     </p>
  75                   </th>
  76 </tr></thead>
  77 <tbody>
  78 <tr>
  79 <td>
  80                     <p>
  81                       Box &amp;
  82                     </p>
  83                   </td>
  84 <td>
  85                     <p>
  86                       type of the box
  87                     </p>
  88                   </td>
  89 <td>
  90                     <p>
  91                       box
  92                     </p>
  93                   </td>
  94 <td>
  95                     <p>
  96                       box to be expanded using another geometry, mutable
  97                     </p>
  98                   </td>
  99 </tr>
 100 <tr>
 101 <td>
 102                     <p>
 103                       Geometry const &amp;
 104                     </p>
 105                   </td>
 106 <td>
 107                     <p>
 108                       Any type fulfilling a Geometry Concept
 109                     </p>
 110                   </td>
 111 <td>
 112                     <p>
 113                       geometry
 114                     </p>
 115                   </td>
 116 <td>
 117                     <p>
 118                       A model of the specified concept geometry which envelope (bounding
 119                       box)
 120                     </p>
 121                   </td>
 122 </tr>
 123 <tr>
 124 <td>
 125                     <p>
 126                       Strategy const &amp;
 127                     </p>
 128                   </td>
 129 <td>
 130                     <p>
 131                       Any type fulfilling a expand Strategy Concept
 132                     </p>
 133                   </td>
 134 <td>
 135                     <p>
 136                       strategy
 137                     </p>
 138                   </td>
 139 <td>
 140                     <p>
 141                       The strategy which will be used for expand calculations will
 142                       be added to the box
 143                     </p>
 144                   </td>
 145 </tr>
 146 </tbody>
 147 </table></div>
 148 <h6>
 149 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h2"></a>
 150             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.header"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.header">Header</a>
 151           </h6>
 152 <p>
 153             Either
 154           </p>
 155 <p>
 156             <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">hpp</span><span class="special">&gt;</span></code>
 157           </p>
 158 <p>
 159             Or
 160           </p>
 161 <p>
 162             <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">algorithms</span><span class="special">/</span><span class="identifier">expand</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
 163           </p>
 164 <h6>
 165 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h3"></a>
 166             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.conformance"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.conformance">Conformance</a>
 167           </h6>
 168 <p>
 169             The function expand is not defined by OGC.
 170           </p>
 171 <h6>
 172 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h4"></a>
 173             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.behavior"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.behavior">Behavior</a>
 174           </h6>
 175 <div class="informaltable"><table class="table">
 176 <colgroup>
 177 <col>
 178 <col>
 179 </colgroup>
 180 <thead><tr>
 181 <th>
 182                     <p>
 183                       Case
 184                     </p>
 185                   </th>
 186 <th>
 187                     <p>
 188                       Behavior
 189                     </p>
 190                   </th>
 191 </tr></thead>
 192 <tbody>
 193 <tr>
 194 <td>
 195                     <p>
 196                       Box / Point
 197                     </p>
 198                   </td>
 199 <td>
 200                     <p>
 201                       Box is expanded to include the specified Point
 202                     </p>
 203                   </td>
 204 </tr>
 205 <tr>
 206 <td>
 207                     <p>
 208                       Box / Box
 209                     </p>
 210                   </td>
 211 <td>
 212                     <p>
 213                       Box is expanded to include the specified Box
 214                     </p>
 215                   </td>
 216 </tr>
 217 <tr>
 218 <td>
 219                     <p>
 220                       Box / Other geometries
 221                     </p>
 222                   </td>
 223 <td>
 224                     <p>
 225                       Not yet supported in this version
 226                     </p>
 227                   </td>
 228 </tr>
 229 </tbody>
 230 </table></div>
 231 <div class="note"><table border="0" summary="Note">
 232 <tr>
 233 <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../../doc/src/images/note.png"></td>
 234 <th align="left">Note</th>
 235 </tr>
 236 <tr><td align="left" valign="top"><p>
 237               To use expand with another geometry type then specified, use expand(make_envelope&lt;box_type&gt;(geometry)
 238             </p></td></tr>
 239 </table></div>
 240 <h6>
 241 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h5"></a>
 242             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.complexity"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.complexity">Complexity</a>
 243           </h6>
 244 <p>
 245             Linear
 246           </p>
 247 <h6>
 248 <a name="geometry.reference.algorithms.expand.expand_3_with_strategy.h6"></a>
 249             <span class="phrase"><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.example"></a></span><a class="link" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.example">Example</a>
 250           </h6>
 251 <p>
 252             Shows the usage of expand
 253           </p>
 254 <p>
 255 </p>
 256 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
 257 <span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">list</span><span class="special">&gt;</span>
 258
 259 <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>
 260 <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">box</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span>
 261 <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>
 262
 263 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
 264 <span class="special">{</span>
 265     <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">short</span> <span class="keyword">int</span><span class="special">&gt;</span> <span class="identifier">point_type</span><span class="special">;</span>
 266     <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">box</span><span class="special">&lt;</span><span class="identifier">point_type</span><span class="special">&gt;</span> <span class="identifier">box_type</span><span class="special">;</span>
 267
 268     <span class="keyword">using</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">expand</span><span class="special">;</span>
 269
 270     <span class="identifier">box_type</span> <span class="identifier">box</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">make_inverse</span><span class="special">&lt;</span><span class="identifier">box_type</span><span class="special">&gt;();</span> <a class="co" name="geometry.reference.algorithms.expand.expand_3_with_strategy.c0" href="expand_3_with_strategy.html#geometry.reference.algorithms.expand.expand_3_with_strategy.c1"><img src="../../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a>
 271
 272     <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">0</span><span class="special">,</span> <span class="number">0</span><span class="special">));</span>
 273     <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">1</span><span class="special">,</span> <span class="number">2</span><span class="special">));</span>
 274     <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</span><span class="special">,</span> <span class="identifier">point_type</span><span class="special">(</span><span class="number">5</span><span class="special">,</span> <span class="number">4</span><span class="special">));</span>
 275     <span class="identifier">expand</span><span class="special">(</span><span class="identifier">box</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">make</span><span class="special">&lt;</span><span class="identifier">box_type</span><span class="special">&gt;(</span><span class="number">3</span><span class="special">,</span> <span class="number">3</span><span class="special">,</span> <span class="number">5</span><span class="special">,</span> <span class="number">5</span><span class="special">));</span>
 276
 277     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">::</span><span class="identifier">dsv</span><span class="special">(</span><span class="identifier">box</span><span class="special">)</span> <span class="special">&lt;&lt;</span> <span class="identifier">std</span><span class="special">::</span><span class="identifier">endl</span><span class="special">;</span>
 278
 279     <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
 280 <span class="special">}</span>
 281 </pre>
 282 <p>
 283           </p>
 284 <div class="calloutlist"><table border="0" summary="Callout list"><tr>
 285 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.algorithms.expand.expand_3_with_strategy.c1"></a><a href="#geometry.reference.algorithms.expand.expand_3_with_strategy.c0"><img src="../../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a> </p></td>
 286 <td valign="top" align="left"><p>
 287                 expand is usually preceded by a call to assign_inverse or make_inverse
 288               </p></td>
 289 </tr></table></div>
 290 <p>
 291             Output:
 292           </p>
 293 <pre class="programlisting">((0, 0), (5, 5))
 294 </pre>
 295 </div>
 296 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 297 <td align="left"></td>
 298 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 299       Wulkiewicz, Oracle and/or its affiliates<p>
 300         Distributed under the Boost Software License, Version 1.0. (See accompanying
 301         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>)
 302       </p>
 303 </div></td>
 304 </tr></table>
 305 <hr>
 306 <div class="spirit-nav">
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