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  25 <div class="section">
  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="geometry.reference.models.model_multi_polygon"></a><a class="link" href="model_multi_polygon.html" title="model::multi_polygon">model::multi_polygon</a>
  28 </h4></div></div></div>
  29 <p>
  30           <a class="indexterm" name="idm46186982362784"></a><a class="indexterm" name="idm46186982362096"></a>
  31 multi_polygon, a collection of polygons
  32         </p>
  33 <h6>
  34 <a name="geometry.reference.models.model_multi_polygon.h0"></a>
  35           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.description"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.description">Description</a>
  36         </h6>
  37 <p>
  38           Multi-polygon can be used to group polygons belonging to each other, e.g.
  39           Hawaii
  40         </p>
  41 <h6>
  42 <a name="geometry.reference.models.model_multi_polygon.h1"></a>
  43           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.model_of"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.model_of">Model
  44           of</a>
  45         </h6>
  46 <p>
  47           <a class="link" href="../concepts/concept_multi_polygon.html" title="MultiPolygon Concept">MultiPolygon
  48           Concept</a>
  49         </p>
  50 <h6>
  51 <a name="geometry.reference.models.model_multi_polygon.h2"></a>
  52           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.synopsis"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.synopsis">Synopsis</a>
  53         </h6>
  54 <p>
  55 </p>
  56 <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">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span><span class="special">,</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> <span class="identifier">Container</span><span class="special">,</span> <span class="keyword">template</span><span class="special">&lt;</span> <span class="keyword">typename</span> <span class="special">&gt;</span> <span class="keyword">class</span> <span class="identifier">Allocator</span><span class="special">&gt;</span>
  57 <span class="keyword">class</span> <span class="identifier">model</span><span class="special">::</span><span class="identifier">multi_polygon</span>
  58       <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">Container</span><span class="special">&lt;</span> <span class="identifier">Polygon</span><span class="special">,</span> <span class="identifier">Allocator</span><span class="special">&lt;</span> <span class="identifier">Polygon</span> <span class="special">&gt;</span> <span class="special">&gt;</span>
  59 <span class="special">{</span>
  60   <span class="comment">// ...</span>
  61 <span class="special">};</span>
  62 </pre>
  63 <p>
  64         </p>
  65 <h6>
  66 <a name="geometry.reference.models.model_multi_polygon.h3"></a>
  67           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.template_parameter_s_"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.template_parameter_s_">Template
  68           parameter(s)</a>
  69         </h6>
  70 <div class="informaltable"><table class="table">
  71 <colgroup>
  72 <col>
  73 <col>
  74 <col>
  75 </colgroup>
  76 <thead><tr>
  77 <th>
  78                   <p>
  79                     Parameter
  80                   </p>
  81                 </th>
  82 <th>
  83                   <p>
  84                     Default
  85                   </p>
  86                 </th>
  87 <th>
  88                   <p>
  89                     Description
  90                   </p>
  91                 </th>
  92 </tr></thead>
  93 <tbody>
  94 <tr>
  95 <td>
  96                   <p>
  97                     typename Polygon
  98                   </p>
  99                 </td>
 100 <td>
 101                 </td>
 102 <td>
 103                 </td>
 104 </tr>
 105 <tr>
 106 <td>
 107                   <p>
 108                     template&lt; typename, typename &gt; class Container
 109                   </p>
 110                 </td>
 111 <td>
 112                   <p>
 113                     std::vector
 114                   </p>
 115                 </td>
 116 <td>
 117                 </td>
 118 </tr>
 119 <tr>
 120 <td>
 121                   <p>
 122                     template&lt; typename &gt; class Allocator
 123                   </p>
 124                 </td>
 125 <td>
 126                   <p>
 127                     std::allocator
 128                   </p>
 129                 </td>
 130 <td>
 131                 </td>
 132 </tr>
 133 </tbody>
 134 </table></div>
 135 <h6>
 136 <a name="geometry.reference.models.model_multi_polygon.h4"></a>
 137           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.constructor_s_"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.constructor_s_">Constructor(s)</a>
 138         </h6>
 139 <div class="informaltable"><table class="table">
 140 <colgroup>
 141 <col>
 142 <col>
 143 <col>
 144 </colgroup>
 145 <thead><tr>
 146 <th>
 147                   <p>
 148                     Function
 149                   </p>
 150                 </th>
 151 <th>
 152                   <p>
 153                     Description
 154                   </p>
 155                 </th>
 156 <th>
 157                   <p>
 158                     Parameters
 159                   </p>
 160                 </th>
 161 </tr></thead>
 162 <tbody>
 163 <tr>
 164 <td>
 165                   <p>
 166 </p>
 167 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">multi_polygon</span><span class="special">()</span></pre>
 168 <p>
 169                   </p>
 170                 </td>
 171 <td>
 172                   <p>
 173                     Default constructor, creating an empty multi_polygon.
 174                   </p>
 175                 </td>
 176 <td>
 177                 </td>
 178 </tr>
 179 <tr>
 180 <td>
 181                   <p>
 182 </p>
 183 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">multi_polygon</span><span class="special">(</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">initializer_list</span><span class="special">&lt;</span> <span class="identifier">Polygon</span> <span class="special">&gt;</span> <span class="identifier">l</span><span class="special">)</span></pre>
 184 <p>
 185                   </p>
 186                 </td>
 187 <td>
 188                   <p>
 189                     Constructor taking std::initializer_list, filling the multi_polygon.
 190                   </p>
 191                 </td>
 192 <td>
 193                   <p>
 194                     <span class="bold"><strong>std::initializer_list&lt; Polygon &gt;</strong></span>:
 195                     <span class="emphasis"><em>l</em></span>:
 196                   </p>
 197                 </td>
 198 </tr>
 199 </tbody>
 200 </table></div>
 201 <h6>
 202 <a name="geometry.reference.models.model_multi_polygon.h5"></a>
 203           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.header"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.header">Header</a>
 204         </h6>
 205 <p>
 206           Either
 207         </p>
 208 <p>
 209           <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">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></code>
 210         </p>
 211 <p>
 212           Or
 213         </p>
 214 <p>
 215           <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">geometries</span><span class="special">/</span><span class="identifier">multi_polygon</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
 216         </p>
 217 <h6>
 218 <a name="geometry.reference.models.model_multi_polygon.h6"></a>
 219           <span class="phrase"><a name="geometry.reference.models.model_multi_polygon.examples"></a></span><a class="link" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.examples">Examples</a>
 220         </h6>
 221 <p>
 222           Declaration and use of the Boost.Geometry model::multi_polygon, modelling
 223           the MultiPolygon Concept
 224         </p>
 225 <p>
 226 </p>
 227 <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special">&lt;</span><span class="identifier">iostream</span><span class="special">&gt;</span>
 228 <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>
 229 <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>
 230
 231 <span class="keyword">namespace</span> <span class="identifier">bg</span> <span class="special">=</span> <span class="identifier">boost</span><span class="special">::</span><span class="identifier">geometry</span><span class="special">;</span>
 232
 233 <span class="keyword">int</span> <span class="identifier">main</span><span class="special">()</span>
 234 <span class="special">{</span>
 235     <span class="keyword">typedef</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">model</span><span class="special">::</span><span class="identifier">point</span><span class="special">&lt;</span><span class="keyword">double</span><span class="special">,</span> <span class="number">2</span><span class="special">,</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">cs</span><span class="special">::</span><span class="identifier">cartesian</span><span class="special">&gt;</span> <span class="identifier">point_t</span><span class="special">;</span>
 236     <span class="keyword">typedef</span> <span class="identifier">bg</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_t</span><span class="special">&gt;</span> <span class="identifier">polygon_t</span><span class="special">;</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c0" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c1"><img src="../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a>
 237     <span class="keyword">typedef</span> <span class="identifier">bg</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_t</span><span class="special">&gt;</span> <span class="identifier">mpolygon_t</span><span class="special">;</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c2" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c3"><img src="../../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a>
 238
 239     <span class="identifier">mpolygon_t</span> <span class="identifier">mpoly1</span><span class="special">;</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c4" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c5"><img src="../../../../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a>
 240
 241 <span class="preprocessor">#if</span> <span class="special">!</span><span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_NO_CXX11_UNIFIED_INITIALIZATION_SYNTAX</span><span class="special">)</span> <span class="special">\</span>
 242  <span class="special">&amp;&amp;</span> <span class="special">!</span><span class="identifier">defined</span><span class="special">(</span><span class="identifier">BOOST_NO_CXX11_HDR_INITIALIZER_LIST</span><span class="special">)</span>
 243
 244     <span class="identifier">mpolygon_t</span> <span class="identifier">mpoly2</span><span class="special">{{{{</span><span class="number">0.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">},</span> <span class="special">{</span><span class="number">0.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">},</span> <span class="special">{</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">},</span> <span class="special">{</span><span class="number">5.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">},</span> <span class="special">{</span><span class="number">0.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">}},</span>
 245                        <span class="special">{{</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">},</span> <span class="special">{</span><span class="number">4.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">},</span> <span class="special">{</span><span class="number">4.0</span><span class="special">,</span> <span class="number">4.0</span><span class="special">},</span> <span class="special">{</span><span class="number">1.0</span><span class="special">,</span> <span class="number">4.0</span><span class="special">},</span> <span class="special">{</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">}}},</span>
 246                       <span class="special">{{{</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">},</span> <span class="special">{</span><span class="number">5.0</span><span class="special">,</span> <span class="number">6.0</span><span class="special">},</span> <span class="special">{</span><span class="number">6.0</span><span class="special">,</span> <span class="number">6.0</span><span class="special">},</span> <span class="special">{</span><span class="number">6.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">},</span> <span class="special">{</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">}}}};</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c6" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c7"><img src="../../../../../../../doc/src/images/callouts/4.png" alt="4" border="0"></a>
 247
 248 <span class="preprocessor">#endif</span>
 249
 250     <span class="identifier">mpoly1</span><span class="special">.</span><span class="identifier">resize</span><span class="special">(</span><span class="number">2</span><span class="special">);</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c8" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c9"><img src="../../../../../../../doc/src/images/callouts/5.png" alt="5" border="0"></a>
 251
 252     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">));</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c10" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c11"><img src="../../../../../../../doc/src/images/callouts/6.png" alt="6" border="0"></a>
 253     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">));</span>
 254     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">));</span>
 255     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">5.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">));</span>
 256     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">0.0</span><span class="special">,</span> <span class="number">0.0</span><span class="special">));</span>
 257
 258     <span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">().</span><span class="identifier">resize</span><span class="special">(</span><span class="number">1</span><span class="special">);</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c12" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c13"><img src="../../../../../../../doc/src/images/callouts/7.png" alt="7" border="0"></a>
 259     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">()[</span><span class="number">0</span><span class="special">],</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">));</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c14" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c15"><img src="../../../../../../../doc/src/images/callouts/8.png" alt="8" border="0"></a>
 260     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">()[</span><span class="number">0</span><span class="special">],</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">4.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">));</span>
 261     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">()[</span><span class="number">0</span><span class="special">],</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">4.0</span><span class="special">,</span> <span class="number">4.0</span><span class="special">));</span>
 262     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">()[</span><span class="number">0</span><span class="special">],</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span> <span class="number">4.0</span><span class="special">));</span>
 263     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">0</span><span class="special">].</span><span class="identifier">inners</span><span class="special">()[</span><span class="number">0</span><span class="special">],</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">1.0</span><span class="special">,</span> <span class="number">1.0</span><span class="special">));</span>
 264
 265     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">1</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">));</span> <a class="co" name="geometry.reference.models.model_multi_polygon.c16" href="model_multi_polygon.html#geometry.reference.models.model_multi_polygon.c17"><img src="../../../../../../../doc/src/images/callouts/9.png" alt="9" border="0"></a>
 266     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">1</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">5.0</span><span class="special">,</span> <span class="number">6.0</span><span class="special">));</span>
 267     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">1</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">6.0</span><span class="special">,</span> <span class="number">6.0</span><span class="special">));</span>
 268     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">1</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">6.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">));</span>
 269     <span class="identifier">bg</span><span class="special">::</span><span class="identifier">append</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">[</span><span class="number">1</span><span class="special">].</span><span class="identifier">outer</span><span class="special">(),</span> <span class="identifier">point_t</span><span class="special">(</span><span class="number">5.0</span><span class="special">,</span> <span class="number">5.0</span><span class="special">));</span>
 270
 271     <span class="keyword">double</span> <span class="identifier">a</span> <span class="special">=</span> <span class="identifier">bg</span><span class="special">::</span><span class="identifier">area</span><span class="special">(</span><span class="identifier">mpoly1</span><span class="special">);</span>
 272
 273     <span class="identifier">std</span><span class="special">::</span><span class="identifier">cout</span> <span class="special">&lt;&lt;</span> <span class="identifier">a</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>
 274
 275     <span class="keyword">return</span> <span class="number">0</span><span class="special">;</span>
 276 <span class="special">}</span>
 277 </pre>
 278 <p>
 279         </p>
 280 <div class="calloutlist"><table border="0" summary="Callout list">
 281 <tr>
 282 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c1"></a><a href="#geometry.reference.models.model_multi_polygon.c0"><img src="../../../../../../../doc/src/images/callouts/1.png" alt="1" border="0"></a> </p></td>
 283 <td valign="top" align="left"><p>
 284               Default parameters, clockwise, closed polygon.
 285             </p></td>
 286 </tr>
 287 <tr>
 288 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c3"></a><a href="#geometry.reference.models.model_multi_polygon.c2"><img src="../../../../../../../doc/src/images/callouts/2.png" alt="2" border="0"></a> </p></td>
 289 <td valign="top" align="left"><p>
 290               Clockwise, closed multi_polygon.
 291             </p></td>
 292 </tr>
 293 <tr>
 294 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c5"></a><a href="#geometry.reference.models.model_multi_polygon.c4"><img src="../../../../../../../doc/src/images/callouts/3.png" alt="3" border="0"></a> </p></td>
 295 <td valign="top" align="left"><p>
 296               Default-construct a multi_polygon.
 297             </p></td>
 298 </tr>
 299 <tr>
 300 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c7"></a><a href="#geometry.reference.models.model_multi_polygon.c6"><img src="../../../../../../../doc/src/images/callouts/4.png" alt="4" border="0"></a> </p></td>
 301 <td valign="top" align="left"><p>
 302               Construct a multi_polygon containing two polygons, using C++11 unified
 303               initialization syntax.
 304             </p></td>
 305 </tr>
 306 <tr>
 307 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c9"></a><a href="#geometry.reference.models.model_multi_polygon.c8"><img src="../../../../../../../doc/src/images/callouts/5.png" alt="5" border="0"></a> </p></td>
 308 <td valign="top" align="left"><p>
 309               Resize a multi_polygon, store two polygons.
 310             </p></td>
 311 </tr>
 312 <tr>
 313 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c11"></a><a href="#geometry.reference.models.model_multi_polygon.c10"><img src="../../../../../../../doc/src/images/callouts/6.png" alt="6" border="0"></a> </p></td>
 314 <td valign="top" align="left"><p>
 315               Append point to the exterior ring of the first polygon.
 316             </p></td>
 317 </tr>
 318 <tr>
 319 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c13"></a><a href="#geometry.reference.models.model_multi_polygon.c12"><img src="../../../../../../../doc/src/images/callouts/7.png" alt="7" border="0"></a> </p></td>
 320 <td valign="top" align="left"><p>
 321               Resize a container of interior rings of the first polygon.
 322             </p></td>
 323 </tr>
 324 <tr>
 325 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c15"></a><a href="#geometry.reference.models.model_multi_polygon.c14"><img src="../../../../../../../doc/src/images/callouts/8.png" alt="8" border="0"></a> </p></td>
 326 <td valign="top" align="left"><p>
 327               Append point to the interior ring of the first polygon.
 328             </p></td>
 329 </tr>
 330 <tr>
 331 <td width="5%" valign="top" align="left"><p><a name="geometry.reference.models.model_multi_polygon.c17"></a><a href="#geometry.reference.models.model_multi_polygon.c16"><img src="../../../../../../../doc/src/images/callouts/9.png" alt="9" border="0"></a> </p></td>
 332 <td valign="top" align="left"><p>
 333               Append point to the exterior ring of the second polygon.
 334             </p></td>
 335 </tr>
 336 </table></div>
 337 <p>
 338           Output:
 339         </p>
 340 <pre class="programlisting">17
 341 </pre>
 342 </div>
 343 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 344 <td align="left"></td>
 345 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 346       Wulkiewicz, Oracle and/or its affiliates<p>
 347         Distributed under the Boost Software License, Version 1.0. (See accompanying
 348         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>)
 349       </p>
 350 </div></td>
 351 </tr></table>
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