72 lines
1.2 KiB
Text
72 lines
1.2 KiB
Text
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#lang scribble/manual
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@(require (for-label racket))
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@title{Pfuncn}
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Function pattern of given length@section{categories}
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Streams-Patterns-Events>Patterns>Function
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@section{related}
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Classes/Pfunc
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@section{description}
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Returns a stream that returns values from the
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@racketblock[func::.
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]
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@section{classmethods}
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@section{method}
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new
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@section{argument}
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func
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Stream function. In an event stream receives the current link::Classes/Event:: as argument.
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@section{argument}
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repeats
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End after this number of times.
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@section{examples}
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@racketblock[
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(
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var a, b, c;
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a = Pfuncn({ exprand(0.1, 2.0) + #[1, 2, 3, 6].choose }, 2);
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b = Pfuncn({ #[-2, -3].choose }, 2);
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Pseq([a, b], inf).asStream.nextN(20).postln;
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)
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::
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Sound example
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]
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@racketblock[
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(
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SynthDef(\help_sinegrain,
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{ arg out = 0, freq = 440, sustain = 0.05;
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var env;
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env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction: Done.freeSelf);
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Out.ar(out, SinOsc.ar(freq, 0, env))
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}).add;
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)
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(
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var a, b, c;
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a = Pfuncn({ exprand(0.1, 2.0) + #[1, 2, 3, 6].choose }, 2);
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b = Pfuncn({ #[-2, -3].choose }, 7);
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c = Pseq([a, b], inf).asStream;
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{
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c.do { |val|
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Synth(\help_sinegrain, [\freq, val * 100 + 300]);
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0.02.wait;
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}
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}.fork;
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)
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::
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]
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