Interfacing function
eng

##
RAMP

### File content

    function [x,y,typ]=RAMP(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
      model=arg1.model;
      while %t do
        [ok,slope,stt,iout,exprs]=getvalue('Set ramp parameters',..
    	['Slope';'Start time';'Initial output'],list('vec',1,'vec',1,'vec',1),exprs)
        if ~ok then break,end
        if stt<0  then
          message('Time must be > 0')
        else
          model.rpar=[slope;stt;iout];
          graphics.exprs=exprs
          x.graphics=graphics;x.model=model
          break
        end
      end
    case 'define' then
      slope=0;iout=0;stt=0;rpar=[slope;stt;iout];
      model=scicos_model()
      model.sim=list('ramp',4)
      model.in=[]
      model.out=1
      model.rpar=rpar
      model.blocktype='c'
      model.nmode=1
      model.nzcross=1
      model.dep_ut=[%f %t]

      exprs=[string(rpar)]
      gr_i=['thick=xget(''thickness'');xset(''thickness'',2);';
        'xx=orig(1)+[4/5;3/5;2/5]*sz(1);';
        'yy=orig(2)+[4/5;1/2;1/2]*sz(2);';
        'xpoly(xx,yy,''lines'');';
        'xset(''thickness'',thick)']
      x=standard_define([2 2],model,exprs,gr_i)
    end
    endfunction