PRODUCT
function [x,y,typ]=PRODUCT(job,arg1,arg2)
// Copyright INRIA
x=[];y=[];typ=[];
select job
case 'plot' then
sgn=arg1.model.ipar
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
model=arg1.model
exprs=graphics.exprs
while %t do
[ok,sgn,exprs]=getvalue('Set multiplication block parameters',..
'Number of inputs or sign vector (multiplication: + 1, division: -1)',list('vec',-1),exprs)
if ~ok then break,end
sgn=sgn(:);
if size(sgn,1)==1 then
if sgn<1 then
message('Number of inputs must be > 0')
ok=%f
elseif sgn==1 then
in=-1
sgn=[]
nout=1
else
in=-ones(sgn,1)
sgn=ones(sgn,1)
nout=-1
end
else
if ~and(abs(sgn)==1) then
message('Signs can only be +1 or -1')
ok=%f
else
in=-ones(size(sgn,1),1)
nout=-1
end
end
if ok then
[model,graphics,ok]=check_io(model,graphics,in,nout,[],[])
end
if ok then
model.ipar=sgn
graphics.exprs=exprs
x.graphics=graphics;x.model=model
break
end
end
case 'define' then
sgn=[1;-1]
model=scicos_model()
model.sim=list('product',4)
model.in=[-1;-1]
model.out=-1
model.ipar=sgn
model.blocktype='c'
model.dep_ut=[%t %f]
exprs=sci2exp(sgn)
gr_i=['[x,y,typ]=standard_inputs(o) ';
'dd=sz(1)/8,de=0,'
'if ~arg1.graphics.flip then dd=6*sz(1)/8,de=-sz(1)/8,end'
'for k=1:size(x,''*'')';
'if size(sgn,1)>1 then'
' if sgn(k)>0 then';
' xstring(orig(1)+dd,y(k)-4,''*'')';
' else';
' xstring(orig(1)+dd,y(k)-4,''/'')';
' end';
'end';
'end';
'xx=sz(1)*[.8 .8 .4 .4]+orig(1)+de';
'yy=sz(2)*[.2 .8 .8 .2]+orig(2)';
'xpoly(xx,yy,''lines'')']
x=standard_define([2 3],model, exprs,gr_i)
x.graphics.id="Product"
end
endfunction