/usr/share/SuperCollider/HelpSource/Classes/LastValue.schelp is in supercollider-common 1:3.8.0~repack-2.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 | class:: LastValue
summary:: Output the last value before the input changed
related:: Classes/LeastChange, Classes/MostChange
categories:: UGens>Triggers
Description::
Output the last value before the input changed more than a threshold.
classmethods::
method::ar, kr
argument::in
The input signal.
argument::diff
Difference threshold.
Examples::
code::
d = { arg freq=440; SinOsc.ar(LastValue.ar(freq, 20), 0, 0.2) }.play;
d.set(\freq, 400);
d.set(\freq, 200);
d.set(\freq, 670);
d.set(\freq, 680);
d.set(\freq, 695);
d.free;
::
Return the difference between current and the last changed:
code::
(
d = { arg out=0, val=1;
SinOsc.ar(
abs(val - LastValue.kr(val)) * 400 + 200,
0, 0.2
)
}.play;
)
d.set(\val, 3);
d.set(\val, 2);
d.set(\val, 0.2);
d.set(\val, 1);
d.set(\val, 2);
d.free;
::
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