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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
//
// See the file ../license.txt
//
function [x,y,typ]=func_block(job,arg1,arg2)
//%Description
// job=='plot' : block drawing
// arg1 is block data structure
// arg2 :unused
// job=='getinputs' : return position and type of inputs ports
// arg1 is block data structure
// x : x coordinates of ports
// x : y coordinates of ports
// typ: type of ports
// job=='getoutputs' : return position and type of outputs ports
// arg1 is block data structure
// x : x coordinates of ports
// x : y coordinates of ports
// typ: type of ports
// job=='getorigin' : return block origin coordinates
// x : x coordinates of block origin
// x : y coordinates of block origin
// job=='set' : block parameters acquisition
// arg1 is block data structure
// x is returned block data structure
// job=='define' : corresponding block data structure initialisation
// arg1: name of block parameters acquisition macro
// x : block data structure
//%Block data-structure definition
// bl=list('Block',graphics,model,init,'standard_block')
// graphics=list([xo,yo],[l,h],orient,exprs)
// xo - x coordinate of block origin
// yo - y coordinate of block origin
// l - block width
// h - block height
// orient - boolean, specifies if block is tilded
// exprs - string block exprs
// model=list(eqns,#input,#output,#clk_input,#clk_output,state,..
// rpar,ipar,typ [,firing])
// eqns - function name (in string form if fortran routine)
// #input - number of inputs
// #output - number of outputs
// #clk_input - number of clock inputs
// #clk_output - number of clock outputs
// state - vector (column) of initial condition
// rpar - vector (column) of real parameters
// ipar - vector (column) of integer parameters
// typ - string: 'c' if block is continuous, 'd' if discrete
// 'z' if zero-crossing.
// firing - boolean initial clock firing if true
//
x=[];
y=[];
typ=[];
select job
case "set" then
model=arg1.model;
graphics=arg1.graphics;
exprs=graphics.exprs
x=arg1
model=x.model
[ok,mac,exprs]=genfunc(exprs)
if ok then
model.sim=mac
graphics.exprs=exprs
x.model=model
x.graphics=graphics
end
case "define" then
model=scicos_model()
model.sim=" "
model.in=1
model.out=1
model.blocktype="c"
model.dep_ut=[%t %f]
exprs="v=sin(u);y=u*v"
gr_i=[]
x=standard_define([2 2],model,exprs,gr_i)
end
endfunction
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