1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
|
// Scicos
//
// Scilab ( http://www.scilab.org/ ) - This file is part of Scilab
// Copyright (C) INRIA - METALAU Project <scicos@inria.fr>
// Copyright (C) 2009-2010 - DIGITEO - Clément DAVID
//
// 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]=DIFF_c(job,arg1,arg2)
// Copyright INRIA
x=[];
y=[];
typ=[];
select job
case "set" then
x=arg1
graphics=arg1.graphics;
exprs=graphics.exprs
model=arg1.model;
while %t do
ask_again=%f
[ok,x0,xd0,exprs]=scicos_getvalue("Set continuous linear system parameters",..
["Initial state";"Initial Derivative"],list("vec",-1,"vec",-1),exprs)
if ~ok then
break,
end
x0=x0(:);
N=size(x0,"*");
xd0=xd0(:);
Nxd=size(xd0,"*");
if (N~=Nxd) then
message("Incompatible sizes: states and their derivatives should have the same size ")
ask_again=%t
end
if (N<=0 & ~ask_again) then
x_message("number of states must be > 0 ")
ask_again=%t
end
if ~ask_again then
graphics.exprs=exprs
model.state=[x0;xd0];
model.out=[N]
model.in=N
x.graphics=graphics;
x.model=model
break
end
end
x.model.firing=[] //compatibility
case "define" then
x0=[0;0]
model=scicos_model()
model.sim=list("diffblk_c",10004)
model.in=1
model.out=1
model.state=x0
model.blocktype="c"
model.dep_ut=[%f %t]
exprs=[strcat(sci2exp(x0(1)));strcat(sci2exp(x0(2)))]
gr_i=[]
x=standard_define([2 2],model,exprs,gr_i)
end
endfunction
|
