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// Scicos
//
// Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
//
// See the file ../license.txt
//
function [x,y,typ]=RAND_f(job,arg1,arg2)
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;
if size(exprs,'*')==5 then exprs=exprs(1:3),end //compatibility
if size(exprs,'*')==3 then exprs=[exprs;string(model.dstate(1))],end //compatibility
while %t do
[ok,flag,a,b,seed_c,exprs]=scicos_getvalue([
'Set Random generator block parameters';
'flag = 0 : Uniform distribution A is min and A+B max';
'flag = 1 : Normal distribution A is mean and B deviation';
' ';
'A and B must be vector with equal sizes';
'seed is the seed of random number generator (integer<2**31)'],..
['flag';'A';'B';'seed'],..
list('vec',1,'vec',-1,'vec','size(%2,''*'')','vec',1),exprs)
if ~ok then break,end
if flag<>0&flag<>1 then
message('flag must be equal to 1 or 0')
else
nout=size(a,'*')
graphics.exprs=exprs
model.out=nout
model.ipar=flag
model.rpar=[a(:);b(:)]
model.dstate=[seed_c;0*a(:)]
x.graphics=graphics;x.model=model
break
end
end
case 'define' then
a=0
b=1
dt=0
out=1
flag=0
model=scicos_model()
model.sim='rndblk'
model.out=out
model.evtin=1
model.dstate=[int(rand()*(10^7-1));0*a(:)]
model.rpar=[a(:);b(:)]
model.ipar=flag
model.blocktype='d'
model.dep_ut=[%f %f]
exprs=[string(flag);sci2exp(a(:));sci2exp(b(:));string(model.dstate(1))]
gr_i=['txt=[''random'';''generator''];';
'xstringb(orig(1),orig(2),txt,sz(1),sz(2),''fill'')']
x=standard_define([3 2],model,exprs,gr_i)
end
endfunction
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