//DAC_c Digital to Analog Converter block //Classical interface function ver1.0 - scilab-3.0 //8 Mars 2006 - INRIA - Author : A.Layec function [x,y,typ]=DAC_c(job,arg1,arg2) x=[];y=[];typ=[] select job case 'plot' then x=arg1; graphics=arg1.graphics; if graphics.flip then graphics.gr_i(1)(5)='xstringb(orig(1)+sz(1)*0.1,orig(2)+sz(2)*0.15,txt,sz(1)*0.7,sz(2)*0.7,''fill'');' graphics.gr_i(1)(7)='xpoly(orig(1)+[0.05;0.05;0.7;0.95;0.7;0.05]*sz(1),orig(2)+[0.9;0.1;0.1;0.5;0.9;0.9]*sz(2),""lines"")' else graphics.gr_i(1)(5)='xstringb(orig(1)+sz(1)*0.2,orig(2)+sz(2)*0.15,txt,sz(1)*0.7,sz(2)*0.7,''fill'');' graphics.gr_i(1)(7)='xpoly(orig(1)+[0.95;0.95;0.3;0.05;0.3;0.95]*sz(1),orig(2)+[0.9;0.1;0.1;0.5;0.9;0.9]*sz(2),""lines"")' end x.graphics=graphics; standard_draw(x) 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;model=arg1.model; exprs=graphics.exprs; while %t do text=['Set Digital to Analog Converter Block']; [ok,q,vmin,nbit,cc2,herit,exprs]=getvalue(text,... ['Step';'Minimun output value';'Number of bits';... '2''s complement (0:no, 1:yes)';'Inherit (no:0, yes:1)'],... list('vec',-1,'vec',-1,'vec',-1,'vec',1,'vec',1),exprs); if ~ok then break,end; if (size(vmin)==size(q)&size(q)==size(nbit)&size(q)==size(cc2)) then Nu = prod(size(q)); if herit==1 then model.evtin=[] [model,graphics,ok]=check_io(model,graphics,Nu,Nu,[],[]); else model.evtin=1 [model,graphics,ok]=check_io(model,graphics,Nu,Nu,1,[]); end model.in=Nu model.out=Nu if ok then graphics.exprs=exprs; rpar=[q;vmin]; model.rpar=rpar(:); alpha=int([nbit;cc2]); model.ipar=alpha(:); x.graphics=graphics; x.model=model; break; end else message('All parameters (except the last) must have the same size'); end end case 'define' then Nu=1; nbit=8; q=0.1; vmin=0; cc2=1; herit=1; model=scicos_model() model.sim=list('dac',4) model.in=Nu model.out=Nu model.evtin=[] model.evtout=[] model.dstate=[] model.rpar=[q;vmin] model.ipar=[nbit;cc2] model.blocktype='d' model.firing=[] model.dep_ut=[%t %f] gr_i=['txt=[''DAC''];'; 'thick=xget(''thickness'')' 'pat=xget(''pattern'')' 'fnt=xget(''font'')' 'xstringb(orig(1)+sz(1)*0.1,orig(2)+sz(2)*0.15,txt,sz(1)*0.7,sz(2)*0.7,''fill'');' 'xset(''thickness'',2)' 'xpoly(orig(1)+[0.95;0.95;0.3;0.05;0.3;0.95]*sz(1),orig(2)+[0.9;0.1;0.1;0.5;0.9;0.9]*sz(2),""lines"")' 'xset(''thickness'',thick)' 'xset(''pattern'',pat)' 'xset(''font'',fnt(1),fnt(2))' ] label=[sci2exp(q),sci2exp(vmin),sci2exp(nbit),sci2exp(cc2),string(herit)]; x=standard_define([2 2],model,label,gr_i) end endfunction