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<TITLE>The Synthesis ToolKit in C++ (STK)</TITLE>
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<div class="navpath"><a class="el" href="namespacestk.html">stk</a>::<a class="el" href="classstk_1_1JetTable.html">JetTable</a>
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<h1>stk::JetTable Class Reference</h1><!-- doxytag: class="stk::JetTable" --><!-- doxytag: inherits="stk::Function" -->
<p>STK jet table class.
<a href="#_details">More...</a></p>
<p><code>#include &lt;<a class="el" href="JetTable_8h_source.html">JetTable.h</a>&gt;</code></p>
<div class="dynheader">
Inheritance diagram for stk::JetTable:</div>
<div class="dynsection">
<div class="center">
<img src="classstk_1_1JetTable.png" usemap="#stk::JetTable_map" alt=""/>
<map id="stk::JetTable_map" name="stk::JetTable_map">
<area href="classstk_1_1Function.html" alt="stk::Function" shape="rect" coords="0,56,82,80"/>
<area href="classstk_1_1Stk.html" alt="stk::Stk" shape="rect" coords="0,0,82,24"/>
</map>
</div>
</div>
<p><a href="classstk_1_1JetTable-members.html">List of all members.</a></p>
<table border="0" cellpadding="0" cellspacing="0">
<tr><td colspan="2"><h2>Public Member Functions</h2></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="anchor" id="a3fb5333e6305abdeee7cd83a10ef76b6"></a><!-- doxytag: member="stk::JetTable::tick" ref="a3fb5333e6305abdeee7cd83a10ef76b6" args="(StkFloat input)" -->
StkFloat&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1JetTable.html#a3fb5333e6305abdeee7cd83a10ef76b6">tick</a> (StkFloat input)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Take one sample input and map to one sample of output. <br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1JetTable.html#ae17ee82b1ed7b185713b4ae0b7c2b0cd">tick</a> (<a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;frames, unsigned int channel=0)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Take a channel of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object as inputs to the table and replace with corresponding outputs. <a href="#ae17ee82b1ed7b185713b4ae0b7c2b0cd"></a><br/></td></tr>
<tr><td class="memItemLeft" align="right" valign="top"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;&nbsp;</td><td class="memItemRight" valign="bottom"><a class="el" href="classstk_1_1JetTable.html#a7b261fd07b2325348ef14e3f0ebf8429">tick</a> (<a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;iFrames, <a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;oFrames, unsigned int iChannel=0, unsigned int oChannel=0)</td></tr>
<tr><td class="mdescLeft">&nbsp;</td><td class="mdescRight">Take a channel of the <code>iFrames</code> object as inputs to the table and write outputs to the <code>oFrames</code> object. <a href="#a7b261fd07b2325348ef14e3f0ebf8429"></a><br/></td></tr>
</table>
<hr/><a name="_details"></a><h2>Detailed Description</h2>
<p>STK jet table class. </p>
<p>This class implements a flue jet non-linear function, computed by a polynomial calculation. Contrary to the name, this is not a "table".</p>
<p>Consult Fletcher and Rossing, Karjalainen, Cook, and others for more information.</p>
<p>by Perry R. Cook and Gary P. Scavone, 1995-2011. </p>
<hr/><h2>Member Function Documentation</h2>
<a class="anchor" id="ae17ee82b1ed7b185713b4ae0b7c2b0cd"></a><!-- doxytag: member="stk::JetTable::tick" ref="ae17ee82b1ed7b185713b4ae0b7c2b0cd" args="(StkFrames &amp;frames, unsigned int channel=0)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp; stk::JetTable::tick </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;&nbsp;</td>
<td class="paramname"> <em>frames</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int&nbsp;</td>
<td class="paramname"> <em>channel</em> = <code>0</code></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Take a channel of the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> object as inputs to the table and replace with corresponding outputs. </p>
<p>The <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument reference is returned. The <code>channel</code> argument must be less than the number of channels in the <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument (the first channel is specified by 0). However, range checking is only performed if _STK_DEBUG_ is defined during compilation, in which case an out-of-range value will trigger an <a class="el" href="classstk_1_1StkError.html" title="STK error handling class.">StkError</a> exception. </p>
<p><div class="fragment"><pre class="fragment"><a name="l00068"></a>00068 {
<a name="l00069"></a>00069 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00070"></a>00070 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( channel &gt;= frames.channels() ) {
<a name="l00071"></a>00071 oStream_ &lt;&lt; <span class="stringliteral">&quot;JetTable::tick(): channel and StkFrames arguments are incompatible!&quot;</span>;
<a name="l00072"></a>00072 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00073"></a>00073 }
<a name="l00074"></a>00074 <span class="preprocessor">#endif</span>
<a name="l00075"></a>00075 <span class="preprocessor"></span>
<a name="l00076"></a>00076 StkFloat *samples = &amp;frames[channel];
<a name="l00077"></a>00077 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> hop = frames.channels();
<a name="l00078"></a>00078 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;frames.frames(); i++, samples += hop ) {
<a name="l00079"></a>00079 *samples = *samples * (*samples * *samples - 1.0);
<a name="l00080"></a>00080 <span class="keywordflow">if</span> ( *samples &gt; 1.0) *samples = 1.0;
<a name="l00081"></a>00081 <span class="keywordflow">if</span> ( *samples &lt; -1.0) *samples = -1.0;
<a name="l00082"></a>00082 }
<a name="l00083"></a>00083
<a name="l00084"></a>00084 lastFrame_[0] = *(samples-hop);
<a name="l00085"></a>00085 <span class="keywordflow">return</span> frames;
<a name="l00086"></a>00086 }
</pre></div></p>
</div>
</div>
<a class="anchor" id="a7b261fd07b2325348ef14e3f0ebf8429"></a><!-- doxytag: member="stk::JetTable::tick" ref="a7b261fd07b2325348ef14e3f0ebf8429" args="(StkFrames &amp;iFrames, StkFrames &amp;oFrames, unsigned int iChannel=0, unsigned int oChannel=0)" -->
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp; stk::JetTable::tick </td>
<td>(</td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;&nbsp;</td>
<td class="paramname"> <em>iFrames</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype"><a class="el" href="classstk_1_1StkFrames.html">StkFrames</a> &amp;&nbsp;</td>
<td class="paramname"> <em>oFrames</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int&nbsp;</td>
<td class="paramname"> <em>iChannel</em> = <code>0</code>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">unsigned int&nbsp;</td>
<td class="paramname"> <em>oChannel</em> = <code>0</code></td><td>&nbsp;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td><td><code> [inline]</code></td>
</tr>
</table>
</div>
<div class="memdoc">
<p>Take a channel of the <code>iFrames</code> object as inputs to the table and write outputs to the <code>oFrames</code> object. </p>
<p>The <code>iFrames</code> object reference is returned. Each channel argument must be less than the number of channels in the corresponding <a class="el" href="classstk_1_1StkFrames.html" title="An STK class to handle vectorized audio data.">StkFrames</a> argument (the first channel is specified by 0). However, range checking is only performed if _STK_DEBUG_ is defined during compilation, in which case an out-of-range value will trigger an <a class="el" href="classstk_1_1StkError.html" title="STK error handling class.">StkError</a> exception. </p>
<p><div class="fragment"><pre class="fragment"><a name="l00089"></a>00089 {
<a name="l00090"></a>00090 <span class="preprocessor">#if defined(_STK_DEBUG_)</span>
<a name="l00091"></a>00091 <span class="preprocessor"></span> <span class="keywordflow">if</span> ( iChannel &gt;= iFrames.channels() || oChannel &gt;= oFrames.channels() ) {
<a name="l00092"></a>00092 oStream_ &lt;&lt; <span class="stringliteral">&quot;JetTable::tick(): channel and StkFrames arguments are incompatible!&quot;</span>;
<a name="l00093"></a>00093 <a class="code" href="classstk_1_1Stk.html#a48ac73a0d8ca28445ba1a054e1f061ff" title="Static function for error reporting and handling using c-strings.">handleError</a>( StkError::FUNCTION_ARGUMENT );
<a name="l00094"></a>00094 }
<a name="l00095"></a>00095 <span class="preprocessor">#endif</span>
<a name="l00096"></a>00096 <span class="preprocessor"></span>
<a name="l00097"></a>00097 StkFloat *iSamples = &amp;iFrames[iChannel];
<a name="l00098"></a>00098 StkFloat *oSamples = &amp;oFrames[oChannel];
<a name="l00099"></a>00099 <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> iHop = iFrames.channels(), oHop = oFrames.channels();
<a name="l00100"></a>00100 <span class="keywordflow">for</span> ( <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> i=0; i&lt;iFrames.frames(); i++, iSamples += iHop, oSamples += oHop ) {
<a name="l00101"></a>00101 *oSamples = *oSamples * (*oSamples * *oSamples - 1.0);
<a name="l00102"></a>00102 <span class="keywordflow">if</span> ( *oSamples &gt; 1.0) *oSamples = 1.0;
<a name="l00103"></a>00103 <span class="keywordflow">if</span> ( *oSamples &lt; -1.0) *oSamples = -1.0;
<a name="l00104"></a>00104 }
<a name="l00105"></a>00105
<a name="l00106"></a>00106 lastFrame_[0] = *(oSamples-oHop);
<a name="l00107"></a>00107 <span class="keywordflow">return</span> iFrames;
<a name="l00108"></a>00108 }
</pre></div></p>
</div>
</div>
<hr/>The documentation for this class was generated from the following file:<ul>
<li><a class="el" href="JetTable_8h_source.html">JetTable.h</a></li>
</ul>
</div>
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<tr><td><A HREF="http://ccrma.stanford.edu/software/stk/"><I>The Synthesis ToolKit in C++ (STK)</I></A></td></tr>
<tr><td>&copy;1995-2011 Perry R. Cook and Gary P. Scavone. All Rights Reserved.</td></tr>
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