Fonction d'interfaçage
fr
DLSS_f
function [x,y,typ]=DLSS_f(job,arg1,arg2)
// Copyright INRIA
x=[];y=[];typ=[]
select job
case 'plot' then
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
if size(exprs,'*')==7 then exprs=exprs([1:4 7]),end //compatibility
model=arg1.model;
while %t do
[ok,A,B,C,D,x0,exprs]=getvalue('Set discrete linear system parameters',..
['A matrix';
'B matrix';
'C matrix';
'D matrix';
'Initial state'],..
list('mat',[-1,-1],..
'mat',['size(%1,2)','-1'],..
'mat',['-1','size(%1,2)'],..
'mat',[-1 -1],..
'vec','size(%1,2)'),..
exprs)
if ~ok then break,end
out=size(C,1);if out==0 then out=[],end
in=size(B,2);if in==0 then in=[],end
[ms,ns]=size(A)
if ms<>ns then
message('A matrix must be square')
else
[model,graphics,ok]=check_io(model,graphics,in,out,1,[])
if ok then
graphics.exprs=exprs;
rpar=[A(:);B(:);C(:);D(:)];
if D<>[] then
if norm(D,1)<>0 then
mmm=[%t %f];
else
mmm=[%f %f];
end
if or(model.dep_ut<>mmm) then
model.dep_ut=mmm,end
else
model.dep_ut=[%f %f];
end
model.dstate=x0(:);model.rpar=rpar
x.graphics=graphics;x.model=model
break
end
end
end
case 'define' then
x0=0;A=-1;B=1;C=1;D=0;
model=scicos_model()
model.sim=list('dsslti',1)
model.in=1
model.out=1
model.evtin=1
model.dstate=x0(:)
model.rpar=[A(:);B(:);C(:);D(:)]
model.blocktype='d'
model.dep_ut=[%f %f]
exprs=[strcat(sci2exp(A));
strcat(sci2exp(B));
strcat(sci2exp(C));
strcat(sci2exp(D));
strcat(sci2exp(x0))]
gr_i=['txt=[''x+=Ax+Bu'';''y=Cx+Du''];';
'xstringb(orig(1),orig(2),txt,sz(1),sz(2),''fill'');']
x=standard_define([4 2],model,exprs,gr_i)
end
endfunction