From 43dd4efedf1ecfe721cde5830bdcee67ffa48907 Mon Sep 17 00:00:00 2001
From: Tim Blechmann <timblech@users.sourceforge.net>
Date: Tue, 28 Dec 2004 12:38:45 +0000
Subject: a few new attractors ...

svn path=/trunk/externals/tb/; revision=2434
---
 chaos/src/latoocarfian.hpp | 98 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 chaos/src/latoocarfian.hpp

(limited to 'chaos/src/latoocarfian.hpp')

diff --git a/chaos/src/latoocarfian.hpp b/chaos/src/latoocarfian.hpp
new file mode 100644
index 0000000..c2a31a1
--- /dev/null
+++ b/chaos/src/latoocarfian.hpp
@@ -0,0 +1,98 @@
+// 
+//  
+//  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"
+#include <cmath>
+
+//  latoocarfian model: x1[n+1] = sin(x2[n]*b) + c*sin(x1[n]*b)
+//                      x2[n+1] = sin(x1[n]*a) + d*sin(x2[n]*a)
+//                      -3 < a,b < 3
+//                      -0.5 < c,d < 1.5
+//  taken from Pickover: Chaos In Wonderland
+
+class latoocarfian
+	: public map_base
+{
+public:
+	latoocarfian()
+	{
+		m_num_eq = 2;
+		m_data = new data_t[m_num_eq];
+
+		CHAOS_SYS_INIT(x1,0.5);
+		CHAOS_SYS_INIT(x2,0);
+		CHAOS_SYS_INIT(a,-0.966918);
+		CHAOS_SYS_INIT(b,2.879879);
+		CHAOS_SYS_INIT(c,0.765145);
+		CHAOS_SYS_INIT(d,0.744728);
+	}
+	
+	~latoocarfian()
+	{
+		delete m_data;
+	}
+
+	virtual void m_step()
+	{
+		data_t x1 = m_data[0], x2 = m_data[1];
+		data_t a = CHAOS_PARAMETER(a), b = CHAOS_PARAMETER(b),
+			c = CHAOS_PARAMETER(c), d = CHAOS_PARAMETER(d);
+		
+		m_data[0] = sin(x2*b) + c*sin(x1*b);
+		m_data[1] = sin(x1*a) + d*sin(x2*a);
+	}
+
+	CHAOS_SYSVAR_FUNCS(x1, 0);
+	CHAOS_SYSVAR_FUNCS(x2, 1);
+
+	CHAOS_SYSPAR_FUNCS_PRED(a,m_pred_1);
+	CHAOS_SYSPAR_FUNCS_PRED(b,m_pred_1);
+	CHAOS_SYSPAR_FUNCS_PRED(c,m_pred_2);
+	CHAOS_SYSPAR_FUNCS_PRED(d,m_pred_2);
+
+	bool m_pred_1(t_float f)
+	{
+		return (f > -3.f) && (f < 3.f);
+	}
+
+	bool m_pred_2(t_float f)
+	{
+		return (f > -0.5) && (f < 1.5);
+	}
+};
+
+
+#define LATOOCARFIAN_CALLBACKS					\
+MAP_CALLBACKS;									\
+CHAOS_SYS_CALLBACKS(x1);						\
+CHAOS_SYS_CALLBACKS(x2);						\
+CHAOS_SYS_CALLBACKS(a);							\
+CHAOS_SYS_CALLBACKS(b);							\
+CHAOS_SYS_CALLBACKS(c);							\
+CHAOS_SYS_CALLBACKS(d);
+
+#define LATOOCARFIAN_ATTRIBUTES					\
+MAP_ATTRIBUTES;									\
+CHAOS_SYS_ATTRIBUTE(x1);						\
+CHAOS_SYS_ATTRIBUTE(x2);						\
+CHAOS_SYS_ATTRIBUTE(a);							\
+CHAOS_SYS_ATTRIBUTE(b);							\
+CHAOS_SYS_ATTRIBUTE(c);							\
+CHAOS_SYS_ATTRIBUTE(d);
-- 
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