RosslerL : MultiOutUGen : UGen : AbstractFunction : Object

Extension

Description

A strange attractor discovered by Otto Rossler based on work in chemical kinetics. The system is composed of three ordinary differential equations:

x' = - y - z y' = x + ay z' = b + z(x - c)

The time step amounthdetermines the rate at which the ODE is evaluated. Higher values will increase the rate, but cause more instability. A safe choice is the default amount of 0.05.

Class Methods

RosslerL.ar(freq: 22050, a: 0.2, b: 0.2, c: 5.7, h: 0.05, xi: 0.1, yi: 0, zi: 0, mul: 1.0, add: 0.0)

Inherited class methods

Undocumented class methods

RosslerL.equation

Instance Methods

Inherited instance methods

Examples

These first examples treat RosslerL as a single-output UGen (i.e. using x only):// vary frequency - these parameters are for "one-pulse" orbit { RosslerL.ar(MouseX.kr(20, SampleRate.ir), 0.36, 0.35, 4.5) * 0.3 }.play(s); // randomly modulate params ( { RosslerL.ar( SampleRate.ir, 0.2, // First variable tends to lead to NaN if modulated in this example LFNoise0.kr(1, 0.01, 0.2), LFNoise0.kr(1, 0.2, 0.7) ) * 0.2 }.play(s); ) // as a frequency control { SinOsc.ar(Lag.ar(RosslerL.ar(MouseX.kr(1, 200)))*800+900)*0.4 }.play(s);

// vary frequency - these parameters are for "one-pulse" orbit

{ RosslerL.ar(MouseX.kr(20, SampleRate.ir), 0.36, 0.35, 4.5) * 0.3 }.play(s);

​

// randomly modulate params

(

{ RosslerL.ar(

    SampleRate.ir, 

    0.2, // First variable tends to lead to NaN if modulated in this example

    LFNoise0.kr(1, 0.01, 0.2),

    LFNoise0.kr(1, 0.2, 0.7)

) * 0.2 }.play(s);

)

​

// as a frequency control

{ SinOsc.ar(Lag.ar(RosslerL.ar(MouseX.kr(1, 200)))*800+900)*0.4 }.play(s);

An example utilising the three different outputs as pitch, PWM and pan values (respectively):( { # x,y,z = RosslerL.ar(MouseX.kr(1, 200)); Pan2.ar(Pulse.ar(x.range(100,1000), y.range(0,1), 0.3), z) }.play(s) )

xxxxxxxxxx

(

{

# x,y,z = RosslerL.ar(MouseX.kr(1, 200));

Pan2.ar(Pulse.ar(x.range(100,1000), y.range(0,1), 0.3), z)

}.play(s)

)