Help/Streams-Patterns-Events/Patterns/Pindex.html

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  25 <p class="p1"><span class="s1"><b>Pindex</b></span><b><span class="Apple-tab-span">     </span><span class="Apple-tab-span">    </span><span class="Apple-tab-span">    </span>pattern that indexes into an array</b></p>
  26 <p class="p2"><br></p>
  27 <p class="p1"><b>Pindex(list, index, repeats)</b></p>
  28 <p class="p2"><br></p>
  29 <p class="p1">This allows an <a href="../../Collections/ArrayedCollection.html"><span class="s2">ArrayedCollection</span></a> to be accessed within patterns.<span class="Apple-converted-space"> </span></p>
  30 <p class="p2"><br></p>
  31 <p class="p1"><b>list</b> <span class="Apple-tab-span"> </span><span class="Apple-tab-span">    </span>is the array and <b>index</b> the value to retrieve - both of these arguments can themselves be <a href="Pattern.html"><span class="s2">Pattern</span></a>s.</p>
  32 <p class="p1"><b>repeats</b> <span class="Apple-tab-span">      </span>specifies the number of repeats.</p>
  33 <p class="p2"><br></p>
  34 <p class="p2"><br></p>
  35 <p class="p2"><br></p>
  36 <p class="p2"><br></p>
  37 <p class="p3">// example</p>
  38 <p class="p4"><br></p>
  39 <p class="p5">(</p>
  40 <p class="p6">SynthDef<span class="s3">(</span><span class="s4">\help_pindex</span><span class="s3">, { </span>| out, amp=0.1, freq=440, gate=1 |</p>
  41 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">var</span> son = <span class="s2">Saw</span>.ar(freq * [0.99, 1, 1.01]).mean;</p>
  42 <p class="p5"><span class="Apple-tab-span">     </span>son = son * <span class="s2">EnvGen</span>.ar(<span class="s2">Env</span>.adsr, gate: gate, doneAction:2);</p>
  43 <p class="p5"><span class="Apple-tab-span">     </span><span class="s2">Out</span>.ar(out, son.dup * amp);</p>
  44 <p class="p5">}).add;</p>
  45 <p class="p5">)</p>
  46 <p class="p4"><br></p>
  47 <p class="p4"><br></p>
  48 <p class="p5">(</p>
  49 <p class="p5"><span class="s2">var</span> data = [7, 13, 12, 2, 2, 2, 5];</p>
  50 <p class="p5"><span class="s2">var</span> indices = [0, 0, 2, 0, 4, 6, 7];</p>
  51 <p class="p6">Pbind<span class="s3">(</span></p>
  52 <p class="p7"><span class="s3"><span class="Apple-tab-span">    </span></span>\instrument<span class="s3">, </span>\help_pindex<span class="s3">,</span></p>
  53 <p class="p5"><span class="Apple-tab-span">     </span><span class="s4">\choice</span>, <span class="s2">Prand</span>(indices, <span class="s2">inf</span>),</p>
  54 <p class="p5"><span class="Apple-tab-span">     </span><span class="s4">\degree</span>, <span class="s2">Pindex</span>(data, <span class="s2">Pkey</span>(<span class="s4">\choice</span>), <span class="s2">inf</span>),</p>
  55 <p class="p5"><span class="Apple-tab-span">     </span><span class="s4">\dur</span>, 0.7</p>
  56 <p class="p5">).play</p>
  57 <p class="p5">)</p>
  58 <p class="p4"><br></p>
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