1 files changed, 89 insertions, 0 deletions
diff --git a/chaos/src/roessler.hpp b/chaos/src/roessler.hpp
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+++ b/chaos/src/roessler.hpp
@@ -0,0 +1,89 @@
+// 
+//  
+//  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 "ode_base.hpp"
+
+//  roessler model: dx1/dt = - (x2 + x3)
+//                  dx2/dt = x1 + a * x2
+//                  dx3/dt = b + (x1 - c) * x3
+//  taken from Peitgen / Jürgens / Saupe: Chaos and Fractals
+
+class roessler
+	: public ode_base
+{
+public:
+	roessler()
+	{
+		m_num_eq = 3;
+		m_data = new data_t[m_num_eq];
+
+		CHAOS_SYS_INIT(method,0);
+		CHAOS_SYS_INIT(x1,0);
+		CHAOS_SYS_INIT(x2,0);
+		CHAOS_SYS_INIT(x3,0);
+		CHAOS_SYS_INIT(a,4);
+		CHAOS_SYS_INIT(b,4);
+		CHAOS_SYS_INIT(c,4);
+
+		ode_base_alloc();
+	}
+	
+	~roessler()
+	{
+		ode_base_free();
+		delete m_data;
+	}
+
+	virtual void m_system(data_t* deriv, data_t* data)
+	{
+		data_t x1 = data[0], x2 = data[1], x3 = data[2];
+		
+		deriv[0] = - (x2 - x1);
+		deriv[1] = x1 + CHAOS_PARAMETER(a) * x2;
+		deriv[2] = CHAOS_PARAMETER(b) + (x1 - CHAOS_PARAMETER(c)) * x3;
+	}
+
+	CHAOS_SYSVAR_FUNCS(x1, 0);
+	CHAOS_SYSVAR_FUNCS(x2, 1);
+	CHAOS_SYSVAR_FUNCS(x3, 2);
+
+	CHAOS_SYSPAR_FUNCS(a);
+	CHAOS_SYSPAR_FUNCS(b);
+	CHAOS_SYSPAR_FUNCS(c);
+};
+
+
+#define ROESSLER_CALLBACKS						\
+ODE_CALLBACKS;									\
+CHAOS_SYS_CALLBACKS(x1);						\
+CHAOS_SYS_CALLBACKS(x2);						\
+CHAOS_SYS_CALLBACKS(x3);						\
+CHAOS_SYS_CALLBACKS(a);							\
+CHAOS_SYS_CALLBACKS(b);							\
+CHAOS_SYS_CALLBACKS(c);
+
+#define ROESSLER_ATTRIBUTES						\
+ODE_ATTRIBUTES;									\
+CHAOS_SYS_ATTRIBUTE(x1);						\
+CHAOS_SYS_ATTRIBUTE(x2);						\
+CHAOS_SYS_ATTRIBUTE(x3);						\
+CHAOS_SYS_ATTRIBUTE(a);							\
+CHAOS_SYS_ATTRIBUTE(b);							\
+CHAOS_SYS_ATTRIBUTE(c);