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// Scicos
//
// Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See the file ../license.txt
//
function [x,y,typ]=CLR(job,arg1,arg2)
x=[];
y=[];
typ=[];
select job
case "set" then
x=arg1;
graphics=arg1.graphics;exprs=graphics.exprs
model=arg1.model;
x0=model.state
rpar=model.rpar
ns=prod(size(x0));nin=1;nout=1
%scicos_context=%scicos_context; //copy the semi-global variable locally
%scicos_context.s=%s //add s definition to the context
while %t do
[ok,num,den,exprs]=scicos_getvalue("Set continuous SISO transfer parameters",..
["Numerator (s)";
"Denominator (s)"],..
list("pol",1,"pol",1),exprs)
if ~ok then
break,
end
if degree(num)>degree(den) then
message("Transfer function must be proper or strictly proper.")
ok=%f
end
if ok then
H=cont_frm(num,den)
[A,B,C,D]=H(2:5);
graphics.exprs=exprs;
[ns1,ns1]=size(A)
rpar=[matrix(A,ns1*ns1,1);
matrix(B,ns1,1);
matrix(C,ns1,1);
D]
if norm(D,1)<>0 then
mmm=[%t %t];
else
mmm=[%f %t];
end
if or(model.dep_ut<>mmm) then
model.dep_ut=mmm,
end
if ns1<=ns then
x0=x0(1:ns1)
else
x0(ns1,1)=0
end
model.state=x0
model.rpar=rpar
x.graphics=graphics;
x.model=model
break
end
end
case "define" then
x0=0;
A=-1;
B=1;
C=1;
D=0;
exprs=["1";"1+s"]
model=scicos_model()
model.sim=list("csslti4",4)
model.in=1
model.out=1
model.state=x0
model.rpar=[A(:);B(:);C(:);D(:)]
model.blocktype="c"
model.dep_ut=[%f %t]
gr_i=[]
x=standard_define([3 2],model,exprs,gr_i)
end
endfunction
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