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
|
/*
32/64 bits A-Chaos Lib in openFrameworks
(c) s373.net/x 2004, 2012, 2015
http://s373.net/code/A-Chaos-Lib/A-Chaos.html
programmed by Andre Sier, revised 2015
License: MIT
*/
#pragma once
#include "AChaosBase.h"
#define lorx(x, y, a) (a) * ((y) - (x));
#define lory(x, y, z, a) ((x) * ((r) - (z))) - (y);
#define lorz(x, y, z, c) ((x) * (y)) - ((z) * (c));
class AChaosLorenzEuler : public AChaosBase {
public:
REAL a, r, c, nx, ny, nz,dt; //eq variables
AChaosLorenzEuler(){}
~AChaosLorenzEuler(){}
vector<string> param_labels={"a","r","c","nx","ny","nz","dt"};
virtual void setup(REAL * params = NULL){
AChaosBase::init(params, 7, 3);
if(params==NULL){
//classic lorenz
a=10.0;
r=28.0;
c= 2.67;
nx=0.1;
ny=0.1;
nz=0.1;
dt=0.01;
REAL p[7] = {nx,ny,nz,a,r,c,dt};
set(p);
} else { set(params); }
}
void reset(){
nx = iv[0];
ny = iv[1];
nz = iv[2];
a = iv[3];
r = iv[4];
c = iv[5];
dt = iv[6];
}
void calc(){
REAL dx, dy, dz;
dx = ((ny*a)-(nx*a))*dt;
dy = ((nx*r)-ny-(nx*nz))*dt;
dz = ((nx*ny)-(nz*c))*dt;
nx += dx;
ny += dy;
nz += dz;
ov[0] = nx;
ov[1] = ny;
ov[2] = nz;
}
};
|
