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26 <div class="titlepage"><div><div><h4 class="title">
27 <a name="geometry.reference.core.is_radian"></a><a class="link" href="is_radian.html" title="is_radian">is_radian</a>
28 </h4></div></div></div>
29 <p>
30           <a class="indexterm" name="idp109162944"></a>
31 Meta-function to verify if a coordinate system is radian.
32         </p>
33 <h6>
34 <a name="geometry.reference.core.is_radian.h0"></a>
35           <span class="phrase"><a name="geometry.reference.core.is_radian.synopsis"></a></span><a class="link" href="is_radian.html#geometry.reference.core.is_radian.synopsis">Synopsis</a>
36         </h6>
37 <p>
38 </p>
39 <pre class="programlisting"><span class="keyword">template</span><span class="special">&lt;</span><span class="keyword">typename</span> <span class="identifier">CoordinateSystem</span><span class="special">&gt;</span>
40 <span class="keyword">struct</span> <span class="identifier">is_radian</span>
41       <span class="special">:</span> <span class="keyword">public</span> <span class="identifier">true_type</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.core.is_radian.h1"></a>
50           <span class="phrase"><a name="geometry.reference.core.is_radian.template_parameter_s_"></a></span><a class="link" href="is_radian.html#geometry.reference.core.is_radian.template_parameter_s_">Template
51           parameter(s)</a>
52         </h6>
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54 <colgroup>
55 <col>
56 <col>
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58 <thead><tr>
59 <th>
60                   <p>
61                     Parameter
62                   </p>
63                 </th>
64 <th>
65                   <p>
66                     Description
67                   </p>
68                 </th>
69 </tr></thead>
70 <tbody><tr>
71 <td>
72                   <p>
73                     typename CoordinateSystem
74                   </p>
75                 </td>
76 <td>
77                   <p>
78                     Any coordinate system.
79                   </p>
80                 </td>
81 </tr></tbody>
82 </table></div>
83 <h6>
84 <a name="geometry.reference.core.is_radian.h2"></a>
85           <span class="phrase"><a name="geometry.reference.core.is_radian.header"></a></span><a class="link" href="is_radian.html#geometry.reference.core.is_radian.header">Header</a>
86         </h6>
87 <p>
88           Either
89         </p>
90 <p>
91           <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>
92         </p>
93 <p>
94           Or
95         </p>
96 <p>
97           <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">core</span><span class="special">/</span><span class="identifier">cs</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">&gt;</span></code>
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