Interfacing function
eng

##
DELAYV_f

### File content

    function [x,y,typ]=DELAYV_f(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)
      z0=model.dstate;zz0=z0(1:$-1);told=z0($);

       while %t do
        [ok,nin,zz0,T,exprs]=getvalue('Set delay parameters',..
         	['Number of inputs';
    	'Register initial condition';
    	'Max delay'],..
    	list('vec',1,'vec',-1,'vec',1),..
    	exprs);
        if ~ok then break,end
        if size(zz0,'*')<2 then
          message('Register length must be at least 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,[nin;1],nin,1,[1;1])
       end
        if ok then
          graphics.exprs=exprs;
          model.dstate=[zz0(:);told];model.rpar=T/(size(zz0,'*'));
          x.graphics=graphics;x.model=model
          break
        end
      end
    case 'define' then
      nin=1
      z0=zeros(11,1);;zz0=z0(1:$-1)
      T=1

      model=scicos_model()
      model.sim=list('delayv',1)
      model.in=[nin;1]
      model.out=nin
      model.evtin=1
      model.evtout=[1;1]
      model.dstate=z0
      model.rpar=T/(size(zz0,'*'))
      model.blocktype='d'
      model.firing=[0 -1]
      model.dep_ut=[%t %f]

      exprs=[string(nin);strcat(string(z0(1:$-1)),';');string(T)];
      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