53 lines
3.9 KiB
HTML
53 lines
3.9 KiB
HTML
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<html><head><title>Timer</title>
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<link rel='stylesheet' href='./../scdoc.css' type='text/css' />
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<link rel='stylesheet' href='./../frontend.css' type='text/css' />
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<link rel='stylesheet' href='./../custom.css' type='text/css' />
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<meta http-equiv='Content-Type' content='text/html; charset=UTF-8' />
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<script src='./../scdoc.js' type='text/javascript'></script>
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<script src='./../docmap.js' type='text/javascript'></script>
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<script src='./../prettify.js' type='text/javascript'></script>
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<script src='./../lang-sc.js' type='text/javascript'></script>
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<script type='text/javascript'>var helpRoot='./..';</script>
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</head>
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<ul id='menubar'></ul>
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<body onload='fixTOC();prettyPrint()'>
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<div class='contents'>
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<div class='header'>
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<div id='label'>SuperCollider CLASSES</div>
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<div id='categories'><a href='./../Browse.html#UGens>Triggers'>UGens>Triggers</a></div>
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<h1>Timer</h1>
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<div id='summary'>Returns time since last triggered.</div>
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</div>
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<div class='subheader'>
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<div id='filename'>Source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/Trig.sc'>/Applications/SuperCollider.app/Contents/Resources/SCClassLibrary/Common/Audio/Trig.sc</a></div><div id='superclasses'>Inherits from: <a href="../Classes/UGen.html">UGen</a> : <a href="../Classes/AbstractFunction.html">AbstractFunction</a> : <a href="../Classes/Object.html">Object</a></div>
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</div>
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<div id='toc'>
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<ul class='toc'><li class='toc1'><a href='#description'>Description</a></li>
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<ul class='toc'></ul><li class='toc1'><a href='#classmethods'>Class methods</a></li>
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<ul class='toc'><li class='toc3'><a href='#*ar'>ar</a> <a href='#*kr'>kr</a> </li>
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<li class='toc2'><a href='#Inherited%20class%20methods'>Inherited class methods</a></li>
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</ul><li class='toc1'><a href='#instancemethods'>Instance methods</a></li>
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<ul class='toc'><li class='toc2'><a href='#Inherited%20instance%20methods'>Inherited instance methods</a></li>
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</ul><li class='toc1'><a href='#examples'>Examples</a></li>
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<ul class='toc'></ul></ul></div><h2><a class='anchor' name='description'>Description</a></h2>
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<p>When triggered, Timer measures the time (in seconds) elapsed since the previous trigger, and outputs this time value as a constant. Its output will not change until the next trigger. The initial value is 0.
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<p>If you need the time since the last trigger, where the time is continually updated, see <a href="./../Classes/Sweep.html">Sweep</a>.<h2><a class='anchor' name='classmethods'>Class Methods</a></h2>
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<h3 class='cmethodname'><span class='methprefix'>*</span><a name='*ar' href='./../Overviews/Methods.html#ar'>ar</a> (<span class='argstr'>trig: 0</span>)</h3>
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<h3 class='cmethodname'><span class='methprefix'>*</span><a name='*kr' href='./../Overviews/Methods.html#kr'>kr</a> (<span class='argstr'>trig: 0</span>)</h3>
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<div class='method'>
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<p><h4>Arguments:</h4>
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<table class='arguments'>
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<tr><td class='argumentname'>trig<td class='argumentdesc'>
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<p>A trigger occurs when trig signal crosses from non-positive to positive.</table></div><h3><a class='anchor' name='Inherited%20class%20methods'>Inherited class methods</a></h3>
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<div id='inheritedclassmets'></div><h2><a class='anchor' name='instancemethods'>Instance Methods</a></h2>
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<h3><a class='anchor' name='Inherited%20instance%20methods'>Inherited instance methods</a></h3>
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<div id='inheritedinstmets'></div><h2><a class='anchor' name='examples'>Examples</a></h2>
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<pre class='code prettyprint lang-sc'>// using timer to modulate sine frequency: the slower the trigger is the higher the frequency
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(
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{ var trig;
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trig = Impulse.kr(MouseX.kr(0.5, 20, 1));
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SinOsc.ar(Timer.kr(trig) * 500 + 500, 0, 0.2)
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}.play;
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)</pre>
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<div class='doclink'>helpfile source: <a href='file:///Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Timer.schelp'>/Applications/SuperCollider.app/Contents/Resources/HelpSource/Classes/Timer.schelp</a><br>link::Classes/Timer::<br>sc version: 3.8.0</div></div></body></html>
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