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
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
|
//
//
// chaos~
// Copyright (C) 2004 Tim Blechmann
//
// 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; see the file COPYING. If not, write to
// the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
// Boston, MA 02111-1307, USA.
#include "map_base.hpp"
// circle_map map: x[n+1] = x[n] * omega - r / (2*pi) * sin (2 * pi * x [n])
//
// taken from Willi-Hans Steeb: Chaos and Fractals
class circle_map:
protected map_base
{
public:
circle_map()
: m_omega(0.4), m_r(1)
{
m_num_eq = 1;
m_data = new data_t[1];
set_x(0.5);
}
~circle_map()
{
delete m_data;
}
virtual void m_step()
{
data_t x = m_data[0];
data_t omega = m_omega;
data_t r = m_r;
m_data[0] = x + omega - r / (2.f * M_PI) * sin (2.f * M_PI * x);
}
void set_x(t_float f)
{
m_data[0] = (data_t) f;
}
t_float get_x()
{
return (t_float)m_data[0];
}
void set_r(t_float f)
{
m_r = (data_t) f;
}
t_float get_r()
{
return (t_float)m_r;
}
void set_omega (t_float f)
{
m_omega = (data_t) f;
}
t_float get_omega()
{
return (t_float)m_omega;
}
private:
data_t m_omega;
data_t m_r;
};
#define CIRCLE_MAP_CALLBACKS \
MAP_CALLBACKS; \
FLEXT_ATTRVAR_F(m_system->m_omega); \
FLEXT_ATTRVAR_F(m_system->m_r); \
FLEXT_CALLVAR_F(m_system->get_omega, m_system->set_omega); \
FLEXT_CALLVAR_F(m_system->get_r, m_system->set_r); \
FLEXT_CALLVAR_F(m_system->get_x, m_system->set_x);
#define CIRCLE_MAP_ATTRIBUTES \
MAP_ATTRIBUTES; \
FLEXT_ADDATTR_VAR1("omega",m_system->m_omega); \
FLEXT_ADDATTR_VAR1("r",m_system->m_r); \
FLEXT_ADDATTR_VAR("omega",m_system->get_omega, m_system->set_omega); \
FLEXT_ADDATTR_VAR("r",m_system->get_r, m_system->set_r); \
FLEXT_ADDATTR_VAR("x",m_system->get_x, m_system->set_x);
|
