ceph/src/boost/libs/qvm/doc/convert_to_quat_.html

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  14 <h1>QVM: Quaternions, Vectors, Matrices</h1>
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  16 <!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
  17 <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
  18 <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
  19 <div class="RenoIncludeDIV"><div class="RenoAutoDIV"><h3>convert_to(quat)</h3>
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  21 <div class="RenoIncludeDIV"><p><span class="RenoEscape">&#35;<!--<wiki>`&#35;</wiki>--></span>include &lt;<span class="RenoLink"><a href="boost_qvm_quat_operations_hpp.html">boost/qvm/quat_operations.hpp</a></span>&gt;</p>
  22 <pre>namespace boost
  23 {
  24     namespace <span class="RenoLink"><a href="qvm.html">qvm</a></span>
  25     {
  26 <span class="RenoIncludeSPAN">        //Only <span class="RenoLink"><a href="SFINAE_enable_if.html">enabled if</a></span>:
  27         //  <span class="RenoLink"><a href="is_quat.html">is_quat</a></span>&lt;R&gt;::value &amp;&amp; <span class="RenoLink"><a href="is_quat.html">is_quat</a></span>&lt;A&gt;::value
  28         template &lt;class R,class A&gt;
  29         R <span class="RenoLink">convert_to</span>( A const &amp; a );
  30
  31         //Only <span class="RenoLink"><a href="SFINAE_enable_if.html">enabled if</a></span>:
  32         //  <span class="RenoLink"><a href="is_quat.html">is_quat</a></span>&lt;R&gt;::value &amp;&amp; <span class="RenoLink"><a href="is_mat.html">is_mat</a></span>&lt;A&gt;::value &amp;&amp;
  33         //  <span class="RenoLink"><a href="mat_traits.html">mat_traits</a></span>&lt;A&gt;::<span class="RenoLink"><a href="mat_traits_Matrix_rows.html">rows</a></span>==3 &amp;&amp; <span class="RenoLink"><a href="mat_traits.html">mat_traits</a></span>&lt;A&gt;::<span class="RenoLink"><a href="mat_traits_Matrix_cols.html">cols</a></span>==3
  34         template &lt;class R,class A&gt;
  35         R <span class="RenoLink">convert_to</span>( A const &amp; m );</span>
  36     }
  37 }</pre>
  38 </div><h4>Requirements:</h4>
  39 <p><i>R</i> must be copyable.</p>
  40 <h4>Effects:</h4>
  41 <p>The first overload is equivalent to: <i>R r; <span class="RenoLink"><a href="assign_quat_quat_.html">assign</a></span>(r,a); return r;</i></p>
  42 <p>The second overload assumes that <i>m</i> is an orthonormal rotation matrix and converts it to a quaternion that performs the same rotation.</p>
  43 </div><div class="RenoAutoDIV"><div class="RenoHR"><hr/></div>
  44 See also: <span class="RenoPageList"><a href="boost_qvm_quat_operations_hpp.html">boost/qvm/quat_operations.hpp</a></span>
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  46 <!-- Copyright (c) 2008-2016 Emil Dotchevski and Reverge Studios, Inc. -->
  47 <!-- Distributed under the Boost Software License, Version 1.0. (See accompanying -->
  48 <!-- file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) -->
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  53 <small>Copyright (c) 2008-2016 by Emil Dotchevski and Reverge Studios, Inc.<br/>
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