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| [632] | 61 | <div class="navpath"><a class="el" href="dev_guide.html">BDM Use - in C++</a> |
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| 64 | <div class="contents"> |
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| [591] | 65 | |
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| 66 | |
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| 67 | <h1><a class="anchor" id="mexfiles">How to write and use mex files for Matlab </a></h1><h2><a class="anchor" id="use"> |
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| [275] | 68 | Howto use predefined mexfiles</a></h2> |
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| [591] | 69 | <p>A range of mexfiles is predefined in directory <code>library/mex</code>. Many of these mexfile process ui files (see <a class="el" href="ui_page.html">User Infos and their use</a>) examples of these files are in directory <code>library/tutorial</code>. Note that in order to run these files you need to let matlab know where to find them: </p> |
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| 70 | <div class="fragment"><pre class="fragment">>> addpath path_to_bdm/library/mex |
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| 71 | </pre></div><p>Then, you can go to <code>library/tutorial</code> and run e.g. <code>arx_test_mex</code>.</p> |
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| 72 | <h2><a class="anchor" id="write"> |
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| [275] | 73 | Howto write custom mex file</a></h2> |
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| [591] | 74 | <p>Due to special nature of the mex files, the mex file can be split in three parts: </p> |
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| 75 | <ul> |
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| [275] | 76 | <li>input conversion, where input arguments are converted to IT++ structures, </li> |
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| 77 | <li>main body of algorithm, where any C++ bdm constructions can be used, </li> |
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| 78 | <li>output conversion, where resulting IT++ structures are converted to mxArrays.</li> |
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| 79 | </ul> |
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| [591] | 80 | <p>The first and the third part is achieved using prepared IT++ routines, see IT++ documentation.</p> |
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| 81 | <p>Script <code></code>./buildmex is prepared to compile and link the mexfile with bdm. </p> |
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| 82 | <div class="fragment"><pre class="fragment">$ ./buildmex.sh my_mex_file.cpp |
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| 83 | </pre></div><p> on Linux, or </p> |
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| 84 | <div class="fragment"><pre class="fragment">$ ./buildmex.bat my_mex_file.cpp |
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| 85 | </pre></div><p> on Windows.</p> |
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| 86 | <p>Example of a mexfile: </p> |
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| 87 | <div class="fragment"><pre class="fragment"></pre></div> </div> |
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| [641] | 88 | <hr size="1"/><address style="text-align: right;"><small>Generated on Sun Sep 27 00:49:05 2009 for mixpp by |
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