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class:: Punop
summary:: unary operator pattern
related:: Classes/Pbinop, Classes/Pnaryop, Classes/UnaryOpFunction, Overviews/Operators
categories:: Streams-Patterns-Events>Patterns>Math
description::
Returns a stream that applies the unary operator to the stream values of the receiver. Usually, this is the result of applying a unary operator (i.e. a method with one argument) to a pattern.
Examples of unary operators are: squared, sqrt, sin, tan ...
ClassMethods::
method::new
argument::operator
operator to be applied
argument::a
a pattern (or compatible pattern input)
Examples::
code::
(
var a;
a = Punop(\sqrt, Pseries(0, 1, 12));
a.asStream.all;
)
// this is the same as:
(
var a;
a = Pseries(0, 1, 12).sqrt;
a.asStream.all;
)
// some common cases:
Pseq([1, 2, 3]).squared;
Pseq([0.2, 0.5, 0.8]).coin;
Pwhite(-100, 100, inf).abs;
// sound example
(
SynthDef(\help_sinegrain,
{ arg out=0, freq=440, sustain=0.05, amp=0.1;
var env;
env = EnvGen.kr(Env.perc(0.01, sustain, 0.2, amp), doneAction: Done.freeSelf);
Out.ar(out, SinOsc.ar(freq, 0, env))
}).add;
)
(
var a;
a = Pn(Punop(\sqrt, Pseries(0, 1, 12))).asStream;
{
a.do { |val|
Synth(\help_sinegrain, [\freq, a * 200 + 300].postln);
0.5.wait;
}
}.fork;
)
(
Pbind(
\dur, 0.01,
\instrument, \help_sinegrain,
\note, Pn(Punop(\sqrt, Pseries(0, 1, 12)))
).play;
)
// these are the same as:
(
var a;
a = Pn(Pseries(0, 1, 12).sqrt).asStream;
{
a.do { |val|
Synth(\help_sinegrain, [\freq, a * 200 + 300].postln);
0.05.wait;
}
}.fork;
)
(
Pbind(
\dur, 0.1,
\instrument, \help_sinegrain,
\note, Pn(Pseries(0, 1, 12).sqrt)
).play;
)
::
|
