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<li class="navelem"><a class="el" href="namespaceSimac.html">Simac</a></li><li class="navelem"><a class="el" href="classSimac_1_1CircularPeakPicking.html">CircularPeakPicking</a></li> </ul>
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<div class="title">Simac::CircularPeakPicking Class Reference</div> </div>
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<p>This processing takes a vector of scalars magnitudes and returns a list of peaks found considering that the first and last bins are neighbors.
<a href="classSimac_1_1CircularPeakPicking.html#details">More...</a></p>
<p><code>#include <<a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>></code></p>
<p><a href="classSimac_1_1CircularPeakPicking-members.html">List of all members.</a></p>
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Public Types</h2></td></tr>
<tr class="memitem:afe33d4d9db82e2fa6d28b6e9a22f7980"><td class="memItemLeft" align="right" valign="top">typedef std::vector< std::pair<br class="typebreak"/>
< double, double > > </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimac_1_1CircularPeakPicking.html#afe33d4d9db82e2fa6d28b6e9a22f7980">PeakList</a></td></tr>
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Public Member Functions</h2></td></tr>
<tr class="memitem:a56c8a3a1a86e8c9955b82e36f8f2739c"><td class="memItemLeft" align="right" valign="top"> </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimac_1_1CircularPeakPicking.html#a56c8a3a1a86e8c9955b82e36f8f2739c">CircularPeakPicking</a> (<a class="el" href="classunsigned.html">unsigned</a> chromagramSize, double binSize=1.0, double offset=0.0)</td></tr>
<tr class="memitem:a10cc93bd77dcdb0c99e711dc57dc9510"><td class="memItemLeft" align="right" valign="top">std::pair< double, double > </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimac_1_1CircularPeakPicking.html#a10cc93bd77dcdb0c99e711dc57dc9510">interpolate</a> (double y0, double y1, double y2)</td></tr>
<tr class="memdesc:a10cc93bd77dcdb0c99e711dc57dc9510"><td class="mdescLeft"> </td><td class="mdescRight">Find the maximum of an interpolated quadratic polynomial function giving the samples at three equidistant points at x=0, x=1 and x=2. <a href="#a10cc93bd77dcdb0c99e711dc57dc9510"></a><br/></td></tr>
<tr class="memitem:a951929321644ddca8d2f3b8c4467d6b8"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimac_1_1CircularPeakPicking.html#a951929321644ddca8d2f3b8c4467d6b8">doIt</a> (const std::vector< double > &chromagram)</td></tr>
<tr class="memitem:a9ea6921360b95a9a94a7c4850c5f2e99"><td class="memItemLeft" align="right" valign="top">const <a class="el" href="classSimac_1_1CircularPeakPicking.html#afe33d4d9db82e2fa6d28b6e9a22f7980">PeakList</a> & </td><td class="memItemRight" valign="bottom"><a class="el" href="classSimac_1_1CircularPeakPicking.html#a9ea6921360b95a9a94a7c4850c5f2e99">output</a> () const </td></tr>
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<hr/><a name="details" id="details"></a><h2>Detailed Description</h2>
<div class="textblock"><p>This processing takes a vector of scalars magnitudes and returns a list of peaks found considering that the first and last bins are neighbors. </p>
<p>Peaks are detected when there is a bin that is greater that neighbor at both sides. Then peak position and value are interpolated using a quadratic function that passes also by the two neighbors bins.</p>
<p>The first bin is considered at offset and each bin increases binSize. By default, binSize and offset are 1 and 0 so that the bin position matches the resulting position.</p>
<dl class="section author"><dt>Author:</dt><dd>David Garcia </dd></dl>
<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00045">45</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
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<td class="memname">typedef std::vector<std::pair<double, double> > <a class="el" href="classSimac_1_1CircularPeakPicking.html#afe33d4d9db82e2fa6d28b6e9a22f7980">Simac::CircularPeakPicking::PeakList</a></td>
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<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00048">48</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
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<hr/><h2>Constructor & Destructor Documentation</h2>
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<td class="memname">Simac::CircularPeakPicking::CircularPeakPicking </td>
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<td class="paramtype"><a class="el" href="classunsigned.html">unsigned</a> </td>
<td class="paramname"><em>chromagramSize</em>, </td>
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<td class="paramtype">double </td>
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<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00055">55</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
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<hr/><h2>Member Function Documentation</h2>
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<td class="memname">void Simac::CircularPeakPicking::doIt </td>
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<td class="paramname"><em>chromagram</em></td><td>)</td>
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<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00106">106</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
<p>References <a class="el" href="CircularPeakPicking_8hxx_source.html#l00070">interpolate()</a>.</p>
<p>Referenced by <a class="el" href="ChordExtractor_8hxx_source.html#l00100">Simac::ChordExtractor::doIt()</a>.</p>
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<td class="memname">std::pair<double,double> Simac::CircularPeakPicking::interpolate </td>
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<td class="paramname"><em>y0</em>, </td>
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<p>Find the maximum of an interpolated quadratic polynomial function giving the samples at three equidistant points at x=0, x=1 and x=2. </p>
<p>You can use it for any equidistant samples just by adding x0 to the resulting xmax.</p>
<dl class="section pre"><dt>Precondition:</dt><dd>The function will fail when y0>=y1 or y2>=y1, as it is supposed to be applied after having located a peak in y1. </dd></dl>
<dl class="section return"><dt>Returns:</dt><dd>A pair containing xmax,ymax </dd></dl>
<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00070">70</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
<p>Referenced by <a class="el" href="CircularPeakPicking_8hxx_source.html#l00106">doIt()</a>.</p>
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<td class="memname">const <a class="el" href="classSimac_1_1CircularPeakPicking.html#afe33d4d9db82e2fa6d28b6e9a22f7980">PeakList</a>& Simac::CircularPeakPicking::output </td>
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<p>Definition at line <a class="el" href="CircularPeakPicking_8hxx_source.html#l00132">132</a> of file <a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a>.</p>
<p>Referenced by <a class="el" href="ChordExtractor_8hxx_source.html#l00100">Simac::ChordExtractor::doIt()</a>, and <a class="el" href="ChordExtractor_8hxx_source.html#l00180">Simac::ChordExtractor::peaks()</a>.</p>
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<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="CircularPeakPicking_8hxx_source.html">CircularPeakPicking.hxx</a></li>
</ul>
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