Fonction d'interfaçage
fr
VARIABLE_DELAY
function [x,y,typ]=VARIABLE_DELAY(job,arg1,arg2)
// Copyright INRIA
x=[];y=[];typ=[];
select job
case 'plot' then //normal position
standard_draw(arg1)
case 'getinputs' then
[x,y,typ]=standard_inputs(arg1)
case 'getoutputs' then
[x,y,typ]=standard_outputs(arg1)
case 'getorigin' then
[x,y]=standard_origin(arg1)
case 'set' then
x=arg1;
graphics=arg1.graphics;exprs=graphics.exprs
model=arg1.model;nin=model.in(1)
while %t do
[ok,T,init,N,exprs]=getvalue('Set delay parameters',..
['Max delay';'initial input';'Buffer size'],..
list('vec',1,'vec',1,'vec',1),..
exprs);
if ~ok then break,end
if N<2 then
message('Buffer must be larger than 2')
ok=%f
end
if T<=0 then
message('Delay must be positive')
ok=%f
end
if ok then
[model,graphics,ok]=check_io(model,graphics,[-1;1],-1,[],[])
end
if ok then
graphics.exprs=exprs;
model.rpar=[T;init];
model.ipar=N
x.graphics=graphics;x.model=model
break
end
end
case 'define' then
nin=1
T=1
init=0
N=1024
model=scicos_model()
model.sim=list('variable_delay',4)
model.in=[nin;1]
model.out=nin
model.rpar=[T,init];
model.ipar=N
model.blocktype='d'
model.dep_ut=[%f %t %f]
exprs=[string(T);string(init);string(N)];
gr_i=['txt=[''Variable'';''delay''];';
'xstringb(orig(1),orig(2),txt,sz(1),sz(2),''fill'');']
x=standard_define([2.5 2.5],model,exprs,gr_i)
end
endfunction