rsc3/doc-schelp/HelpSource/Classes/Pslide.scrbl

75 lines
1.3 KiB
Racket

#lang scribble/manual
@(require (for-label racket))
@title{Pslide}
slide over a list of values and embed them@section{related}
Classes/Ptuple
@section{categories}
Streams-Patterns-Events>Patterns>List
@section{ClassMethods}
@section{method}
new
@section{argument}
list
@section{argument}
repeats
number of segments.
@section{argument}
len
length of each segment.
@section{argument}
step
how far to step the start of each segment from previous. step can be negative.
@section{argument}
start
what index to start at.
@section{argument}
wrapAtEnd
if true (default), indexing wraps around if goes past beginning or end. If false, the pattern stops if it hits a nil element or goes outside the list bounds.
@section{Examples}
@racketblock[
(
var a, b;
a = Pslide([1, 2, 3, 4, 5], inf, 3, 1, 0);
x = a.asStream;
13.do({ x.next.postln; });
)
//Pslide used as a sequence of pitches:
(
SynthDef(\help_sinegrain,
{ arg out=0, freq=440, sustain=0.05;
var env;
env = EnvGen.kr(Env.perc(0.01, sustain, 0.2), doneAction: Done.freeSelf);
Out.ar(out, SinOsc.ar(freq, 0, env))
}).add;
)
(
c = Pslide(#[1, 2, 3, 4, 5], inf, 3, 1, 0) * 3 + 67;
x = c.asStream;
Routine({
loop({
Synth(\help_sinegrain, [\freq, x.next.midicps]);
0.17.wait;
})
}).play;
)
::
]