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Viewing changes to macros/scicos_blocks/DLR_f.sci

  • Committer: Bazaar Package Importer
  • Author(s): Torsten Werner
  • Date: 2002-03-21 16:57:43 UTC
  • Revision ID: james.westby@ubuntu.com-20020321165743-e9mv12c1tb1plztg
Tags: upstream-2.6
Import upstream version 2.6

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macros/scicos_blocks/DLR_f.sci
 
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function [x,y,typ]=DLR_f(job,arg1,arg2)
 
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// Copyright INRIA
 
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x=[];y=[];typ=[]
 
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select job
 
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case 'plot' then
 
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  standard_draw(arg1)
 
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case 'getinputs' then
 
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  [x,y,typ]=standard_inputs(arg1)
 
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case 'getoutputs' then
 
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  [x,y,typ]=standard_outputs(arg1)
 
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case 'getorigin' then
 
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  [x,y]=standard_origin(arg1)
 
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case 'set' then
 
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  x=arg1;
 
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  graphics=arg1(2);label=graphics(4)
 
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  model=arg1(3);
 
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  x0=model(7);ns=prod(size(x0));
 
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  z=poly(0,'z')
 
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  while %t do
 
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    [ok,num,den,label]=getvalue('Set discrete SISO transfer parameters',..
 
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        ['Numerator (z)';
 
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         'Denominator (z)'],..
 
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        list('pol',1,'pol',1),label)
 
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    if ~ok then break,end
 
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    if degree(num)>degree(den) then
 
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      message('Transfer must be proper')
 
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      ok=%f
 
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    end
 
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    if ok then
 
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      H=cont_frm(num,den)
 
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      [A,B,C,D]=H(2:5);
 
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      graphics(4)=label;
 
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      [ns1,ns1]=size(A)
 
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      if ns1<=ns then
 
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        x0=x0(1:ns1)
 
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      else
 
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        x0(ns1,1)=0
 
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      end
 
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      rpar=[A(:);
 
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            B(:);
 
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            C(:);
 
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            D(:)]
 
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      model(7)=x0
 
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      model(8)=rpar
 
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      if norm(D,1)<>0 then
 
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        mmm=[%t %f];
 
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      else
 
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        mmm=[%f %f];
 
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      end
 
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      if or(model(12)<>mmm) then 
 
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          model(12)=mmm,end
 
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      x(2)=graphics;x(3)=model
 
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      break
 
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    end
 
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  end
 
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  x(3)(11)=[] //compatibility
 
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case 'define' then
 
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  x0=0;A=-1;B=1;C=1;D=0;
 
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  label=['1';'1+z']
 
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  model=list('dsslti',1,1,1,[],[],x0(:),[A;B;C;D],[],'d',[],[%f %f],' ',list())
 
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  gr_i=['txt=[''Num(z)'';''-----'';''Den(z)''];';
 
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    'xstringb(orig(1),orig(2),txt,sz(1),sz(2),''fill'');']
 
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  x=standard_define([2.5 2.5],model,label,gr_i)
 
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end
 
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