PLexprand dynamic scope Pexprand variant 


Part of: miSCellaneous


Inherits from: Pexprand


Takes Symbol args for later reference by the Streams, which will read from variables in the Environments of their instantiation. See PLx suite.


See also: Pexprand, Event patterns and Functions, VarGui, VarGui shortcut builds



Creation / Class Methods


*new (lo, hi, length, envir)

Creates a new PLexprand object.

lo - Symbol or Pexprand lo arg. Defaults to 0.0001.

If a Symbol is passed, lo can be assigned to an envir variable later on.

Can be dynamically replaced by Patterns or Streams.

hi - Symbol or Pexprand hi arg. Defaults to 1.

If a Symbol is passed, hi can be assigned to an envir variable later on.

Can be dynamically replaced by Patterns or Streams.

length - Symbol or Pexprand length arg. Defaults to inf.

If a Symbol is passed, length can be assigned to an envir variable later on.

envir - Dictionary or one of the Symbols

\top, \t (topEnvironment), \current, \c (currentEnvironment).

Dictionary to be taken for variable reference. Defaults to \current.


Examples


(

s = Server.local;

Server.default = s;

s.boot;

)

// definition for future reference in arbitrary Environments,

// intervals grow together with base tone


(

q = PLexprand(\lo, \hi);


p = Pbind(

\midinote, 60 + q + PLtuple([0, q]),

\dur, 0.1

);

)



// prepare current Environment


(

~lo = 0.1;

~hi = 10;

)



// run


x = p.play;



// replace  


~hi = 20;


x.stop;