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+/* strange1 Attractor PD External */
+/* Copyright Michael McGonagle, from ???pbourke???, 2003 */
+/* This program is distributed under the params of the GNU Public License */
+
+///////////////////////////////////////////////////////////////////////////////////
+/* This file is part of Chaos PD Externals. */
+/* */
+/* Chaos PD Externals are free software; you can redistribute them and/or modify */
+/* them 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. */
+/* */
+/* Chaos PD Externals are distributed in the hope that they 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 the Chaos PD Externals; if not, write to the Free Software */
+/* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
+///////////////////////////////////////////////////////////////////////////////////
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <time.h>
+#include "lyapunov.h"
+
+#define M_a0_lo -2
+#define M_a0_hi 2
+#define M_a1_lo -2
+#define M_a1_hi 2
+#define M_a2_lo -2
+#define M_a2_hi 2
+#define M_a3_lo -2
+#define M_a3_hi 2
+#define M_a4_lo -2
+#define M_a4_hi 2
+#define M_a5_lo -2
+#define M_a5_hi 2
+#define M_b0_lo -2
+#define M_b0_hi 2
+#define M_b1_lo -2
+#define M_b1_hi 2
+#define M_b2_lo -2
+#define M_b2_hi 2
+#define M_b3_lo -2
+#define M_b3_hi 2
+#define M_b4_lo -2
+#define M_b4_hi 2
+#define M_b5_lo -2
+#define M_b5_hi 2
+
+#define M_a0 0
+#define M_a1 1
+#define M_a2 2
+#define M_a3 3
+#define M_a4 4
+#define M_a5 5
+#define M_b0 6
+#define M_b1 7
+#define M_b2 8
+#define M_b3 9
+#define M_b4 10
+#define M_b5 11
+
+#define M_x 0
+#define M_y 1
+
+#define M_param_count 12
+#define M_var_count 2
+#define M_search_count 3
+#define M_failure_limit 1000
+
+static char *version = "strange1 v0.0, by Michael McGonagle, from ???pbourke???, 2003";
+
+t_class *strange1_class;
+
+typedef struct strange1_struct {
+ t_object x_obj;
+
+ double vars[M_var_count];
+ double vars_init[M_var_count];
+ t_atom vars_out[M_var_count];
+ t_outlet *vars_outlet;
+
+ t_atom search_out[M_search_count];
+ t_outlet *search_outlet;
+
+ double a0, a0_lo, a0_hi, a1, a1_lo, a1_hi, a2, a2_lo, a2_hi, a3, a3_lo, a3_hi, a4, a4_lo, a4_hi, a5, a5_lo, a5_hi, b0, b0_lo, b0_hi, b1, b1_lo, b1_hi, b2, b2_lo, b2_hi, b3, b3_lo, b3_hi, b4, b4_lo, b4_hi, b5, b5_lo, b5_hi;
+ t_atom params_out[M_param_count];
+ t_outlet *params_outlet;
+ double lyap_exp, lyap_lo, lyap_hi, lyap_limit, failure_ratio;
+
+ t_outlet *outlets[M_var_count - 1];
+} strange1_struct;
+
+static void calc(strange1_struct *strange1, double *vars) {
+ double x_0, y_0;
+ x_0 =strange1 -> a0+strange1 -> a1*vars[M_x]+strange1 -> a2*vars[M_x]*vars[M_x]+strange1 -> a3*vars[M_x]*vars[M_y]+strange1 -> a4*vars[M_y]+strange1 -> a5*vars[M_y]*vars[M_y];
+ y_0 =strange1 -> b0+strange1 -> b1*vars[M_x]+strange1 -> b2*vars[M_x]*vars[M_x]+strange1 -> b3*vars[M_x]*vars[M_y]+strange1 -> b4*vars[M_y]+strange1 -> b5*vars[M_y]*vars[M_y];
+ vars[M_x] = x_0;
+ vars[M_y] = y_0;
+} // end calc
+
+static void calculate(strange1_struct *strange1) {
+ calc(strange1, strange1 -> vars);
+ outlet_float(strange1 -> x_obj.ob_outlet, strange1 -> vars[M_x]);
+ outlet_float(strange1 -> outlets[M_y - 1], strange1 -> vars[M_y]);
+} // end calculate
+
+static void reset(strange1_struct *strange1, t_symbol *s, int argc, t_atom *argv) {
+ if (argc == M_var_count) {
+ strange1 -> vars[M_x] = (double) atom_getfloatarg(M_x, argc, argv);
+ strange1 -> vars[M_y] = (double) atom_getfloatarg(M_y, argc, argv);
+ } else {
+ strange1 -> vars[M_x] = strange1 -> vars_init[M_x];
+ strange1 -> vars[M_y] = strange1 -> vars_init[M_y];
+ } // end if
+} // end reset
+
+static char *classify(strange1_struct *strange1) {
+ static char buff[13];
+ char *c = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ buff[0] = c[(int) (((strange1 -> a0 - M_a0_lo) * (1.0 / (M_a0_hi - M_a0_lo))) * 26)];
+ buff[1] = c[(int) (((strange1 -> a1 - M_a1_lo) * (1.0 / (M_a1_hi - M_a1_lo))) * 26)];
+ buff[2] = c[(int) (((strange1 -> a2 - M_a2_lo) * (1.0 / (M_a2_hi - M_a2_lo))) * 26)];
+ buff[3] = c[(int) (((strange1 -> a3 - M_a3_lo) * (1.0 / (M_a3_hi - M_a3_lo))) * 26)];
+ buff[4] = c[(int) (((strange1 -> a4 - M_a4_lo) * (1.0 / (M_a4_hi - M_a4_lo))) * 26)];
+ buff[5] = c[(int) (((strange1 -> a5 - M_a5_lo) * (1.0 / (M_a5_hi - M_a5_lo))) * 26)];
+ buff[6] = c[(int) (((strange1 -> b0 - M_b0_lo) * (1.0 / (M_b0_hi - M_b0_lo))) * 26)];
+ buff[7] = c[(int) (((strange1 -> b1 - M_b1_lo) * (1.0 / (M_b1_hi - M_b1_lo))) * 26)];
+ buff[8] = c[(int) (((strange1 -> b2 - M_b2_lo) * (1.0 / (M_b2_hi - M_b2_lo))) * 26)];
+ buff[9] = c[(int) (((strange1 -> b3 - M_b3_lo) * (1.0 / (M_b3_hi - M_b3_lo))) * 26)];
+ buff[10] = c[(int) (((strange1 -> b4 - M_b4_lo) * (1.0 / (M_b4_hi - M_b4_lo))) * 26)];
+ buff[11] = c[(int) (((strange1 -> b5 - M_b5_lo) * (1.0 / (M_b5_hi - M_b5_lo))) * 26)];
+ buff[12] = '\0';
+ return buff;
+}
+
+static void make_results(strange1_struct *strange1) {
+ SETFLOAT(&strange1 -> search_out[0], strange1 -> lyap_exp);
+ SETSYMBOL(&strange1 -> search_out[1], gensym(classify(strange1)));
+ SETFLOAT(&strange1 -> search_out[2], strange1 -> failure_ratio);
+ SETFLOAT(&strange1 -> vars_out[M_x], strange1 -> vars[M_x]);
+ SETFLOAT(&strange1 -> vars_out[M_y], strange1 -> vars[M_y]);
+ SETFLOAT(&strange1 -> params_out[M_a0], strange1 -> a0);
+ SETFLOAT(&strange1 -> params_out[M_a1], strange1 -> a1);
+ SETFLOAT(&strange1 -> params_out[M_a2], strange1 -> a2);
+ SETFLOAT(&strange1 -> params_out[M_a3], strange1 -> a3);
+ SETFLOAT(&strange1 -> params_out[M_a4], strange1 -> a4);
+ SETFLOAT(&strange1 -> params_out[M_a5], strange1 -> a5);
+ SETFLOAT(&strange1 -> params_out[M_b0], strange1 -> b0);
+ SETFLOAT(&strange1 -> params_out[M_b1], strange1 -> b1);
+ SETFLOAT(&strange1 -> params_out[M_b2], strange1 -> b2);
+ SETFLOAT(&strange1 -> params_out[M_b3], strange1 -> b3);
+ SETFLOAT(&strange1 -> params_out[M_b4], strange1 -> b4);
+ SETFLOAT(&strange1 -> params_out[M_b5], strange1 -> b5);
+ outlet_list(strange1 -> params_outlet, gensym("list"), M_param_count, strange1 -> params_out);
+ outlet_list(strange1 -> vars_outlet, gensym("list"), M_var_count, strange1 -> vars_out);
+}
+
+static void show(strange1_struct *strange1) {
+ make_results(strange1);
+ outlet_anything(strange1 -> search_outlet, gensym("show"), M_search_count, strange1 -> search_out);
+}
+
+static void param(strange1_struct *strange1, t_symbol *s, int argc, t_atom *argv) {
+ if (argc != 12) {
+ post("Incorrect number of arguments for strange1 fractal. Expecting 12 arguments.");
+ return;
+ }
+ strange1 -> a0 = (double) atom_getfloatarg(0, argc, argv);
+ strange1 -> a1 = (double) atom_getfloatarg(1, argc, argv);
+ strange1 -> a2 = (double) atom_getfloatarg(2, argc, argv);
+ strange1 -> a3 = (double) atom_getfloatarg(3, argc, argv);
+ strange1 -> a4 = (double) atom_getfloatarg(4, argc, argv);
+ strange1 -> a5 = (double) atom_getfloatarg(5, argc, argv);
+ strange1 -> b0 = (double) atom_getfloatarg(6, argc, argv);
+ strange1 -> b1 = (double) atom_getfloatarg(7, argc, argv);
+ strange1 -> b2 = (double) atom_getfloatarg(8, argc, argv);
+ strange1 -> b3 = (double) atom_getfloatarg(9, argc, argv);
+ strange1 -> b4 = (double) atom_getfloatarg(10, argc, argv);
+ strange1 -> b5 = (double) atom_getfloatarg(11, argc, argv);
+}
+
+static void seed(strange1_struct *strange1, t_symbol *s, int argc, t_atom *argv) {
+ if (argc > 0) {
+ srand48(((unsigned int)time(0))|1);
+ } else {
+ srand48((unsigned int) atom_getfloatarg(0, argc, argv));
+ }
+}
+
+static void lyap(strange1_struct *strange1, t_floatarg l, t_floatarg h, t_floatarg lim) {
+ strange1 -> lyap_lo = l;
+ strange1 -> lyap_hi = h;
+ strange1 -> lyap_limit = (double) ((int) lim);
+}
+
+static void elyap(strange1_struct *strange1) {
+ double results[M_var_count];
+ int i;
+ if (lyapunov_full((void *) strange1, (t_gotfn) calc, M_var_count, strange1 -> vars, results) != NULL) {
+ post("elyapunov:");
+ for(i = 0; i < M_var_count; i++) { post("%d: %3.80f", i, results[i]); }
+ }
+}
+
+static void limiter(strange1_struct *strange1) {
+ if (strange1 -> a0_lo < M_a0_lo) { strange1 -> a0_lo = M_a0_lo; }
+ if (strange1 -> a0_lo > M_a0_hi) { strange1 -> a0_lo = M_a0_hi; }
+ if (strange1 -> a0_hi < M_a0_lo) { strange1 -> a0_hi = M_a0_lo; }
+ if (strange1 -> a0_hi > M_a0_hi) { strange1 -> a0_hi = M_a0_hi; }
+ if (strange1 -> a1_lo < M_a1_lo) { strange1 -> a1_lo = M_a1_lo; }
+ if (strange1 -> a1_lo > M_a1_hi) { strange1 -> a1_lo = M_a1_hi; }
+ if (strange1 -> a1_hi < M_a1_lo) { strange1 -> a1_hi = M_a1_lo; }
+ if (strange1 -> a1_hi > M_a1_hi) { strange1 -> a1_hi = M_a1_hi; }
+ if (strange1 -> a2_lo < M_a2_lo) { strange1 -> a2_lo = M_a2_lo; }
+ if (strange1 -> a2_lo > M_a2_hi) { strange1 -> a2_lo = M_a2_hi; }
+ if (strange1 -> a2_hi < M_a2_lo) { strange1 -> a2_hi = M_a2_lo; }
+ if (strange1 -> a2_hi > M_a2_hi) { strange1 -> a2_hi = M_a2_hi; }
+ if (strange1 -> a3_lo < M_a3_lo) { strange1 -> a3_lo = M_a3_lo; }
+ if (strange1 -> a3_lo > M_a3_hi) { strange1 -> a3_lo = M_a3_hi; }
+ if (strange1 -> a3_hi < M_a3_lo) { strange1 -> a3_hi = M_a3_lo; }
+ if (strange1 -> a3_hi > M_a3_hi) { strange1 -> a3_hi = M_a3_hi; }
+ if (strange1 -> a4_lo < M_a4_lo) { strange1 -> a4_lo = M_a4_lo; }
+ if (strange1 -> a4_lo > M_a4_hi) { strange1 -> a4_lo = M_a4_hi; }
+ if (strange1 -> a4_hi < M_a4_lo) { strange1 -> a4_hi = M_a4_lo; }
+ if (strange1 -> a4_hi > M_a4_hi) { strange1 -> a4_hi = M_a4_hi; }
+ if (strange1 -> a5_lo < M_a5_lo) { strange1 -> a5_lo = M_a5_lo; }
+ if (strange1 -> a5_lo > M_a5_hi) { strange1 -> a5_lo = M_a5_hi; }
+ if (strange1 -> a5_hi < M_a5_lo) { strange1 -> a5_hi = M_a5_lo; }
+ if (strange1 -> a5_hi > M_a5_hi) { strange1 -> a5_hi = M_a5_hi; }
+ if (strange1 -> b0_lo < M_b0_lo) { strange1 -> b0_lo = M_b0_lo; }
+ if (strange1 -> b0_lo > M_b0_hi) { strange1 -> b0_lo = M_b0_hi; }
+ if (strange1 -> b0_hi < M_b0_lo) { strange1 -> b0_hi = M_b0_lo; }
+ if (strange1 -> b0_hi > M_b0_hi) { strange1 -> b0_hi = M_b0_hi; }
+ if (strange1 -> b1_lo < M_b1_lo) { strange1 -> b1_lo = M_b1_lo; }
+ if (strange1 -> b1_lo > M_b1_hi) { strange1 -> b1_lo = M_b1_hi; }
+ if (strange1 -> b1_hi < M_b1_lo) { strange1 -> b1_hi = M_b1_lo; }
+ if (strange1 -> b1_hi > M_b1_hi) { strange1 -> b1_hi = M_b1_hi; }
+ if (strange1 -> b2_lo < M_b2_lo) { strange1 -> b2_lo = M_b2_lo; }
+ if (strange1 -> b2_lo > M_b2_hi) { strange1 -> b2_lo = M_b2_hi; }
+ if (strange1 -> b2_hi < M_b2_lo) { strange1 -> b2_hi = M_b2_lo; }
+ if (strange1 -> b2_hi > M_b2_hi) { strange1 -> b2_hi = M_b2_hi; }
+ if (strange1 -> b3_lo < M_b3_lo) { strange1 -> b3_lo = M_b3_lo; }
+ if (strange1 -> b3_lo > M_b3_hi) { strange1 -> b3_lo = M_b3_hi; }
+ if (strange1 -> b3_hi < M_b3_lo) { strange1 -> b3_hi = M_b3_lo; }
+ if (strange1 -> b3_hi > M_b3_hi) { strange1 -> b3_hi = M_b3_hi; }
+ if (strange1 -> b4_lo < M_b4_lo) { strange1 -> b4_lo = M_b4_lo; }
+ if (strange1 -> b4_lo > M_b4_hi) { strange1 -> b4_lo = M_b4_hi; }
+ if (strange1 -> b4_hi < M_b4_lo) { strange1 -> b4_hi = M_b4_lo; }
+ if (strange1 -> b4_hi > M_b4_hi) { strange1 -> b4_hi = M_b4_hi; }
+ if (strange1 -> b5_lo < M_b5_lo) { strange1 -> b5_lo = M_b5_lo; }
+ if (strange1 -> b5_lo > M_b5_hi) { strange1 -> b5_lo = M_b5_hi; }
+ if (strange1 -> b5_hi < M_b5_lo) { strange1 -> b5_hi = M_b5_lo; }
+ if (strange1 -> b5_hi > M_b5_hi) { strange1 -> b5_hi = M_b5_hi; }
+}
+
+static void constrain(strange1_struct *strange1, t_symbol *s, int argc, t_atom *argv) {
+ int i;
+ t_atom *arg = argv;
+ if (argc == 0) {
+ // reset to full limits of search ranges
+ strange1 -> a0_lo = M_a0_lo;
+ strange1 -> a0_hi = M_a0_hi;
+ strange1 -> a1_lo = M_a1_lo;
+ strange1 -> a1_hi = M_a1_hi;
+ strange1 -> a2_lo = M_a2_lo;
+ strange1 -> a2_hi = M_a2_hi;
+ strange1 -> a3_lo = M_a3_lo;
+ strange1 -> a3_hi = M_a3_hi;
+ strange1 -> a4_lo = M_a4_lo;
+ strange1 -> a4_hi = M_a4_hi;
+ strange1 -> a5_lo = M_a5_lo;
+ strange1 -> a5_hi = M_a5_hi;
+ strange1 -> b0_lo = M_b0_lo;
+ strange1 -> b0_hi = M_b0_hi;
+ strange1 -> b1_lo = M_b1_lo;
+ strange1 -> b1_hi = M_b1_hi;
+ strange1 -> b2_lo = M_b2_lo;
+ strange1 -> b2_hi = M_b2_hi;
+ strange1 -> b3_lo = M_b3_lo;
+ strange1 -> b3_hi = M_b3_hi;
+ strange1 -> b4_lo = M_b4_lo;
+ strange1 -> b4_hi = M_b4_hi;
+ strange1 -> b5_lo = M_b5_lo;
+ strange1 -> b5_hi = M_b5_hi;
+ return;
+ }
+ if (argc == 1) {
+ // set the ranges based on percentage of full range
+ double percent = atom_getfloat(arg);
+ double a0_spread = ((M_a0_hi - M_a0_lo) * percent) / 2;
+ double a1_spread = ((M_a1_hi - M_a1_lo) * percent) / 2;
+ double a2_spread = ((M_a2_hi - M_a2_lo) * percent) / 2;
+ double a3_spread = ((M_a3_hi - M_a3_lo) * percent) / 2;
+ double a4_spread = ((M_a4_hi - M_a4_lo) * percent) / 2;
+ double a5_spread = ((M_a5_hi - M_a5_lo) * percent) / 2;
+ double b0_spread = ((M_b0_hi - M_b0_lo) * percent) / 2;
+ double b1_spread = ((M_b1_hi - M_b1_lo) * percent) / 2;
+ double b2_spread = ((M_b2_hi - M_b2_lo) * percent) / 2;
+ double b3_spread = ((M_b3_hi - M_b3_lo) * percent) / 2;
+ double b4_spread = ((M_b4_hi - M_b4_lo) * percent) / 2;
+ double b5_spread = ((M_b5_hi - M_b5_lo) * percent) / 2;
+ strange1 -> a0_lo = strange1 -> a0 - a0_spread;
+ strange1 -> a0_hi = strange1 -> a0 + a0_spread;
+ strange1 -> a1_lo = strange1 -> a1 - a1_spread;
+ strange1 -> a1_hi = strange1 -> a1 + a1_spread;
+ strange1 -> a2_lo = strange1 -> a2 - a2_spread;
+ strange1 -> a2_hi = strange1 -> a2 + a2_spread;
+ strange1 -> a3_lo = strange1 -> a3 - a3_spread;
+ strange1 -> a3_hi = strange1 -> a3 + a3_spread;
+ strange1 -> a4_lo = strange1 -> a4 - a4_spread;
+ strange1 -> a4_hi = strange1 -> a4 + a4_spread;
+ strange1 -> a5_lo = strange1 -> a5 - a5_spread;
+ strange1 -> a5_hi = strange1 -> a5 + a5_spread;
+ strange1 -> b0_lo = strange1 -> b0 - b0_spread;
+ strange1 -> b0_hi = strange1 -> b0 + b0_spread;
+ strange1 -> b1_lo = strange1 -> b1 - b1_spread;
+ strange1 -> b1_hi = strange1 -> b1 + b1_spread;
+ strange1 -> b2_lo = strange1 -> b2 - b2_spread;
+ strange1 -> b2_hi = strange1 -> b2 + b2_spread;
+ strange1 -> b3_lo = strange1 -> b3 - b3_spread;
+ strange1 -> b3_hi = strange1 -> b3 + b3_spread;
+ strange1 -> b4_lo = strange1 -> b4 - b4_spread;
+ strange1 -> b4_hi = strange1 -> b4 + b4_spread;
+ strange1 -> b5_lo = strange1 -> b5 - b5_spread;
+ strange1 -> b5_hi = strange1 -> b5 + b5_spread;
+ limiter(strange1);
+ return;
+ }
+ if (argc != M_param_count * 2) {
+ post("Invalid number of arguments for strange1 constraints, requires 24 values, got %d", argc);
+ return;
+ }
+ strange1 -> a0_lo = atom_getfloat(arg++);
+ strange1 -> a0_hi = atom_getfloat(arg++);
+ strange1 -> a1_lo = atom_getfloat(arg++);
+ strange1 -> a1_hi = atom_getfloat(arg++);
+ strange1 -> a2_lo = atom_getfloat(arg++);
+ strange1 -> a2_hi = atom_getfloat(arg++);
+ strange1 -> a3_lo = atom_getfloat(arg++);
+ strange1 -> a3_hi = atom_getfloat(arg++);
+ strange1 -> a4_lo = atom_getfloat(arg++);
+ strange1 -> a4_hi = atom_getfloat(arg++);
+ strange1 -> a5_lo = atom_getfloat(arg++);
+ strange1 -> a5_hi = atom_getfloat(arg++);
+ strange1 -> b0_lo = atom_getfloat(arg++);
+ strange1 -> b0_hi = atom_getfloat(arg++);
+ strange1 -> b1_lo = atom_getfloat(arg++);
+ strange1 -> b1_hi = atom_getfloat(arg++);
+ strange1 -> b2_lo = atom_getfloat(arg++);
+ strange1 -> b2_hi = atom_getfloat(arg++);
+ strange1 -> b3_lo = atom_getfloat(arg++);
+ strange1 -> b3_hi = atom_getfloat(arg++);
+ strange1 -> b4_lo = atom_getfloat(arg++);
+ strange1 -> b4_hi = atom_getfloat(arg++);
+ strange1 -> b5_lo = atom_getfloat(arg++);
+ strange1 -> b5_hi = atom_getfloat(arg++);
+ limiter(strange1);
+}
+
+static void search(strange1_struct *strange1, t_symbol *s, int argc, t_atom *argv) {
+ int not_found, not_expired = strange1 -> lyap_limit;
+ int jump, i, iterations;
+ t_atom vars[M_var_count];
+ double temp_a0 = strange1 -> a0;
+ double temp_a1 = strange1 -> a1;
+ double temp_a2 = strange1 -> a2;
+ double temp_a3 = strange1 -> a3;
+ double temp_a4 = strange1 -> a4;
+ double temp_a5 = strange1 -> a5;
+ double temp_b0 = strange1 -> b0;
+ double temp_b1 = strange1 -> b1;
+ double temp_b2 = strange1 -> b2;
+ double temp_b3 = strange1 -> b3;
+ double temp_b4 = strange1 -> b4;
+ double temp_b5 = strange1 -> b5;
+ if (argc > 0) {
+ for (i = 0; i < M_var_count; i++) {
+ SETFLOAT(&vars[i], atom_getfloatarg(i, argc, argv));
+ }
+ } else {
+ for (i = 0; i < M_var_count; i++) {
+ SETFLOAT(&vars[i], strange1 -> vars_init[i]);
+ }
+ }
+ do {
+ jump = 500;
+ not_found = 0;
+ iterations = 10000;
+ bad_params:
+ strange1 -> a0 = (drand48() * (strange1 -> a0_hi - strange1 -> a0_lo)) + strange1 -> a0_lo;
+ strange1 -> a1 = (drand48() * (strange1 -> a1_hi - strange1 -> a1_lo)) + strange1 -> a1_lo;
+ strange1 -> a2 = (drand48() * (strange1 -> a2_hi - strange1 -> a2_lo)) + strange1 -> a2_lo;
+ strange1 -> a3 = (drand48() * (strange1 -> a3_hi - strange1 -> a3_lo)) + strange1 -> a3_lo;
+ strange1 -> a4 = (drand48() * (strange1 -> a4_hi - strange1 -> a4_lo)) + strange1 -> a4_lo;
+ strange1 -> a5 = (drand48() * (strange1 -> a5_hi - strange1 -> a5_lo)) + strange1 -> a5_lo;
+ strange1 -> b0 = (drand48() * (strange1 -> b0_hi - strange1 -> b0_lo)) + strange1 -> b0_lo;
+ strange1 -> b1 = (drand48() * (strange1 -> b1_hi - strange1 -> b1_lo)) + strange1 -> b1_lo;
+ strange1 -> b2 = (drand48() * (strange1 -> b2_hi - strange1 -> b2_lo)) + strange1 -> b2_lo;
+ strange1 -> b3 = (drand48() * (strange1 -> b3_hi - strange1 -> b3_lo)) + strange1 -> b3_lo;
+ strange1 -> b4 = (drand48() * (strange1 -> b4_hi - strange1 -> b4_lo)) + strange1 -> b4_lo;
+ strange1 -> b5 = (drand48() * (strange1 -> b5_hi - strange1 -> b5_lo)) + strange1 -> b5_lo;
+ // put any preliminary checks specific to this fractal to eliminate bad_params
+
+ reset(strange1, NULL, argc, vars);
+ do { calc(strange1, strange1 -> vars); } while(jump--);
+ strange1 -> lyap_exp = lyapunov((void *) strange1, (t_gotfn) calc, M_var_count, (double *) strange1 -> vars);
+ if (isnan(strange1 -> lyap_exp)) { not_found = 1; }
+ if (strange1 -> lyap_exp < strange1 -> lyap_lo || strange1 -> lyap_exp > strange1 -> lyap_hi) { not_found = 1; }
+ not_expired--;
+ } while(not_found && not_expired);
+ reset(strange1, NULL, argc, vars);
+ if (!not_expired) {
+ post("Could not find a fractal after %d attempts.", (int) strange1 -> lyap_limit);
+ post("Try using wider constraints.");
+ strange1 -> a0 = temp_a0;
+ strange1 -> a1 = temp_a1;
+ strange1 -> a2 = temp_a2;
+ strange1 -> a3 = temp_a3;
+ strange1 -> a4 = temp_a4;
+ strange1 -> a5 = temp_a5;
+ strange1 -> b0 = temp_b0;
+ strange1 -> b1 = temp_b1;
+ strange1 -> b2 = temp_b2;
+ strange1 -> b3 = temp_b3;
+ strange1 -> b4 = temp_b4;
+ strange1 -> b5 = temp_b5;
+ outlet_anything(strange1 -> search_outlet, gensym("invalid"), 0, NULL);
+ } else {
+ strange1 -> failure_ratio = (strange1 -> lyap_limit - not_expired) / strange1 -> lyap_limit;
+ make_results(strange1);
+ outlet_anything(strange1 -> search_outlet, gensym("search"), M_search_count, strange1 -> search_out);
+ }
+}
+
+void *strange1_new(t_symbol *s, int argc, t_atom *argv) {
+ strange1_struct *strange1 = (strange1_struct *) pd_new(strange1_class);
+ if (strange1 != NULL) {
+ outlet_new(&strange1 -> x_obj, &s_float);
+ strange1 -> outlets[0] = outlet_new(&strange1 -> x_obj, &s_float);
+ strange1 -> search_outlet = outlet_new(&strange1 -> x_obj, &s_list);
+ strange1 -> vars_outlet = outlet_new(&strange1 -> x_obj, &s_list);
+ strange1 -> params_outlet = outlet_new(&strange1 -> x_obj, &s_list);
+ if (argc == M_param_count + M_var_count) {
+ strange1 -> vars_init[M_x] = strange1 -> vars[M_x] = (double) atom_getfloatarg(0, argc, argv);
+ strange1 -> vars_init[M_y] = strange1 -> vars[M_y] = (double) atom_getfloatarg(1, argc, argv);
+ strange1 -> a0 = (double) atom_getfloatarg(2, argc, argv);
+ strange1 -> a1 = (double) atom_getfloatarg(3, argc, argv);
+ strange1 -> a2 = (double) atom_getfloatarg(4, argc, argv);
+ strange1 -> a3 = (double) atom_getfloatarg(5, argc, argv);
+ strange1 -> a4 = (double) atom_getfloatarg(6, argc, argv);
+ strange1 -> a5 = (double) atom_getfloatarg(7, argc, argv);
+ strange1 -> b0 = (double) atom_getfloatarg(8, argc, argv);
+ strange1 -> b1 = (double) atom_getfloatarg(9, argc, argv);
+ strange1 -> b2 = (double) atom_getfloatarg(10, argc, argv);
+ strange1 -> b3 = (double) atom_getfloatarg(11, argc, argv);
+ strange1 -> b4 = (double) atom_getfloatarg(12, argc, argv);
+ strange1 -> b5 = (double) atom_getfloatarg(13, argc, argv);
+ } else {
+ if (argc != 0 && argc != M_param_count + M_var_count) {
+ post("Incorrect number of arguments for strange1 fractal. Expecting 14 arguments.");
+ }
+ strange1 -> vars_init[M_x] = 0;
+ strange1 -> vars_init[M_y] = 0;
+ strange1 -> a0 = 1;
+ strange1 -> a1 = 1;
+ strange1 -> a2 = 1;
+ strange1 -> a3 = 1;
+ strange1 -> a4 = 1;
+ strange1 -> a5 = 1;
+ strange1 -> b0 = 1;
+ strange1 -> b1 = 1;
+ strange1 -> b2 = 1;
+ strange1 -> b3 = 1;
+ strange1 -> b4 = 1;
+ strange1 -> b5 = 1;
+ }
+ constrain(strange1, NULL, 0, NULL);
+ lyap(strange1, -1000000.0, 1000000.0, M_failure_limit);
+ }
+ return (void *)strange1;
+}
+
+void strange1_setup(void) {
+ strange1_class = class_new(gensym("strange1"), (t_newmethod) strange1_new, 0, sizeof(strange1_struct), 0, A_GIMME, 0);
+ class_addbang(strange1_class, (t_method) calculate);
+ class_addmethod(strange1_class, (t_method) reset, gensym("reset"), A_GIMME, 0);
+ class_addmethod(strange1_class, (t_method) show, gensym("show"), 0);
+ class_addmethod(strange1_class, (t_method) param, gensym("param"), A_GIMME, 0);
+ class_addmethod(strange1_class, (t_method) seed, gensym("seed"), A_GIMME, 0);
+ class_addmethod(strange1_class, (t_method) lyap, gensym("lyapunov"), A_DEFFLOAT, A_DEFFLOAT, A_DEFFLOAT, 0);
+ class_addmethod(strange1_class, (t_method) elyap, gensym("elyapunov"), 0);
+ class_addmethod(strange1_class, (t_method) search, gensym("search"), A_GIMME, 0);
+ class_addmethod(strange1_class, (t_method) constrain, gensym("constrain"), A_GIMME, 0);
+ class_sethelpsymbol(strange1_class, gensym("help-strange1.pd"));
+}
+
generated by cgit v1.2.1 (git 2.18.0) at 2024-04-25 15:42:37 +0000