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  25 <div class="section">
  26 <div class="titlepage"><div><div><h4 class="title">
  27 <a name="geometry.reference.strategies.strategy_side_side_by_triangle"></a><a class="link" href="strategy_side_side_by_triangle.html" title="strategy::side::side_by_triangle">strategy::side::side_by_triangle</a>
  28 </h4></div></div></div>
  29 <p>
  30           <a class="indexterm" name="idm46186971952944"></a><a class="indexterm" name="idm46186971952256"></a><a class="indexterm" name="idm46186971951568"></a>
  31 Check at which side of a segment a point lies: left of segment (&gt; 0),
  32           right of segment (&lt; 0), on segment (0)
  33         </p>
  34 <h6>
  35 <a name="geometry.reference.strategies.strategy_side_side_by_triangle.h0"></a>
  36           <span class="phrase"><a name="geometry.reference.strategies.strategy_side_side_by_triangle.synopsis"></a></span><a class="link" href="strategy_side_side_by_triangle.html#geometry.reference.strategies.strategy_side_side_by_triangle.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">CalculationType</span><span class="special">&gt;</span>
  41 <span class="keyword">class</span> <span class="identifier">strategy</span><span class="special">::</span><span class="identifier">side</span><span class="special">::</span><span class="identifier">side_by_triangle</span>
  42 <span class="special">{</span>
  43   <span class="comment">// ...</span>
  44 <span class="special">};</span>
  45 </pre>
  46 <p>
  47         </p>
  48 <h6>
  49 <a name="geometry.reference.strategies.strategy_side_side_by_triangle.h1"></a>
  50           <span class="phrase"><a name="geometry.reference.strategies.strategy_side_side_by_triangle.template_parameter_s_"></a></span><a class="link" href="strategy_side_side_by_triangle.html#geometry.reference.strategies.strategy_side_side_by_triangle.template_parameter_s_">Template
  51           parameter(s)</a>
  52         </h6>
  53 <div class="informaltable"><table class="table">
  54 <colgroup>
  55 <col>
  56 <col>
  57 <col>
  58 </colgroup>
  59 <thead><tr>
  60 <th>
  61                   <p>
  62                     Parameter
  63                   </p>
  64                 </th>
  65 <th>
  66                   <p>
  67                     Default
  68                   </p>
  69                 </th>
  70 <th>
  71                   <p>
  72                     Description
  73                   </p>
  74                 </th>
  75 </tr></thead>
  76 <tbody><tr>
  77 <td>
  78                   <p>
  79                     typename CalculationType
  80                   </p>
  81                 </td>
  82 <td>
  83                   <p>
  84                     void
  85                   </p>
  86                 </td>
  87 <td>
  88                   <p>
  89                     numeric type for calculation (e.g. high precision); if <span class="bold"><strong>void</strong></span> then it is extracted automatically
  90                     from the coordinate type and (if necessary) promoted to floating
  91                     point
  92                   </p>
  93                 </td>
  94 </tr></tbody>
  95 </table></div>
  96 <h6>
  97 <a name="geometry.reference.strategies.strategy_side_side_by_triangle.h2"></a>
  98           <span class="phrase"><a name="geometry.reference.strategies.strategy_side_side_by_triangle.member_function_s_"></a></span><a class="link" href="strategy_side_side_by_triangle.html#geometry.reference.strategies.strategy_side_side_by_triangle.member_function_s_">Member
  99           Function(s)</a>
 100         </h6>
 101 <div class="informaltable"><table class="table">
 102 <colgroup>
 103 <col>
 104 <col>
 105 <col>
 106 <col>
 107 </colgroup>
 108 <thead><tr>
 109 <th>
 110                   <p>
 111                     Function
 112                   </p>
 113                 </th>
 114 <th>
 115                   <p>
 116                     Description
 117                   </p>
 118                 </th>
 119 <th>
 120                   <p>
 121                     Parameters
 122                   </p>
 123                 </th>
 124 <th>
 125                   <p>
 126                     Returns
 127                   </p>
 128                 </th>
 129 </tr></thead>
 130 <tbody>
 131 <tr>
 132 <td>
 133                   <p>
 134 </p>
 135 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">envelope_strategy_type</span> <span class="identifier">get_envelope_strategy</span><span class="special">()</span></pre>
 136 <p>
 137                   </p>
 138                 </td>
 139 <td>
 140                 </td>
 141 <td>
 142                 </td>
 143 <td>
 144                 </td>
 145 </tr>
 146 <tr>
 147 <td>
 148                   <p>
 149 </p>
 150 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">disjoint_strategy_type</span> <span class="identifier">get_disjoint_strategy</span><span class="special">()</span></pre>
 151 <p>
 152                   </p>
 153                 </td>
 154 <td>
 155                 </td>
 156 <td>
 157                 </td>
 158 <td>
 159                 </td>
 160 </tr>
 161 <tr>
 162 <td>
 163                   <p>
 164 </p>
 165 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="identifier">equals_point_point_strategy_type</span> <span class="identifier">get_equals_point_point_strategy</span><span class="special">()</span></pre>
 166 <p>
 167                   </p>
 168                 </td>
 169 <td>
 170                 </td>
 171 <td>
 172                 </td>
 173 <td>
 174                 </td>
 175 </tr>
 176 <tr>
 177 <td>
 178                   <p>
 179 </p>
 180 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">CoordinateType</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">PromotedType</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P2</span><span class="special">,</span>
 181          <span class="keyword">typename</span> <span class="identifier">P</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">EpsPolicy</span><span class="special">&gt;</span>
 182 <span class="identifier">PromotedType</span> <span class="identifier">side_value</span><span class="special">(</span><span class="identifier">P1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p1</span><span class="special">,</span> <span class="identifier">P2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p2</span><span class="special">,</span> <span class="identifier">P</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p</span><span class="special">,</span>
 183                         <span class="identifier">EpsPolicy</span> <span class="special">&amp;</span> <span class="identifier">eps_policy</span><span class="special">)</span></pre>
 184 <p>
 185                   </p>
 186                 </td>
 187 <td>
 188                 </td>
 189 <td>
 190                   <p>
 191                     <span class="bold"><strong>P1 const &amp;</strong></span>: <span class="emphasis"><em>p1</em></span>:
 192                   </p>
 193                   <p>
 194                     <span class="bold"><strong>P2 const &amp;</strong></span>: <span class="emphasis"><em>p2</em></span>:
 195                   </p>
 196                   <p>
 197                     <span class="bold"><strong>P const &amp;</strong></span>: <span class="emphasis"><em>p</em></span>:
 198                   </p>
 199                   <p>
 200                     <span class="bold"><strong>EpsPolicy &amp;</strong></span>: <span class="emphasis"><em>eps_policy</em></span>:
 201                   </p>
 202                 </td>
 203 <td>
 204                 </td>
 205 </tr>
 206 <tr>
 207 <td>
 208                   <p>
 209 </p>
 210 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">CoordinateType</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">PromotedType</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P2</span><span class="special">,</span>
 211          <span class="keyword">typename</span> <span class="identifier">P</span><span class="special">&gt;</span>
 212 <span class="identifier">PromotedType</span> <span class="identifier">side_value</span><span class="special">(</span><span class="identifier">P1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p1</span><span class="special">,</span> <span class="identifier">P2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p2</span><span class="special">,</span> <span class="identifier">P</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p</span><span class="special">)</span></pre>
 213 <p>
 214                   </p>
 215                 </td>
 216 <td>
 217                 </td>
 218 <td>
 219                   <p>
 220                     <span class="bold"><strong>P1 const &amp;</strong></span>: <span class="emphasis"><em>p1</em></span>:
 221                   </p>
 222                   <p>
 223                     <span class="bold"><strong>P2 const &amp;</strong></span>: <span class="emphasis"><em>p2</em></span>:
 224                   </p>
 225                   <p>
 226                     <span class="bold"><strong>P const &amp;</strong></span>: <span class="emphasis"><em>p</em></span>:
 227                   </p>
 228                 </td>
 229 <td>
 230                 </td>
 231 </tr>
 232 <tr>
 233 <td>
 234                   <p>
 235 </p>
 236 <pre xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" class="table-programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">P1</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P2</span><span class="special">,</span> <span class="keyword">typename</span> <span class="identifier">P</span><span class="special">&gt;</span>
 237 <span class="keyword">int</span> <span class="identifier">apply</span><span class="special">(</span><span class="identifier">P1</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p1</span><span class="special">,</span> <span class="identifier">P2</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p2</span><span class="special">,</span> <span class="identifier">P</span> <span class="keyword">const</span> <span class="special">&amp;</span> <span class="identifier">p</span><span class="special">)</span></pre>
 238 <p>
 239                   </p>
 240                 </td>
 241 <td>
 242                 </td>
 243 <td>
 244                   <p>
 245                     <span class="bold"><strong>P1 const &amp;</strong></span>: <span class="emphasis"><em>p1</em></span>:
 246                   </p>
 247                   <p>
 248                     <span class="bold"><strong>P2 const &amp;</strong></span>: <span class="emphasis"><em>p2</em></span>:
 249                   </p>
 250                   <p>
 251                     <span class="bold"><strong>P const &amp;</strong></span>: <span class="emphasis"><em>p</em></span>:
 252                   </p>
 253                 </td>
 254 <td>
 255                 </td>
 256 </tr>
 257 </tbody>
 258 </table></div>
 259 <h6>
 260 <a name="geometry.reference.strategies.strategy_side_side_by_triangle.h3"></a>
 261           <span class="phrase"><a name="geometry.reference.strategies.strategy_side_side_by_triangle.header"></a></span><a class="link" href="strategy_side_side_by_triangle.html#geometry.reference.strategies.strategy_side_side_by_triangle.header">Header</a>
 262         </h6>
 263 <p>
 264           <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">side_by_triangle</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
 265         </p>
 266 </div>
 267 <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr>
 268 <td align="left"></td>
 269 <td align="right"><div class="copyright-footer">Copyright &#169; 2009-2019 Barend Gehrels, Bruno Lalande, Mateusz Loskot, Adam
 270       Wulkiewicz, Oracle and/or its affiliates<p>
 271         Distributed under the Boost Software License, Version 1.0. (See accompanying
 272         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>)
 273       </p>
 274 </div></td>
 275 </tr></table>
 276 <hr>
 277 <div class="spirit-nav">
 278 <a accesskey="p" href="strategy_line_interpolate_spherical.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../strategies.html"><img src="../../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../../index.html"><img src="../../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="strategy_side_side_by_cross_track.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a>
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