From d1ed55f96f9cecc818844006fb36cd58ca70da5e Mon Sep 17 00:00:00 2001
From: Tim Blechmann <timblech@users.sourceforge.net>
Date: Thu, 16 Jun 2005 13:02:02 +0000
Subject: - parameter searching (broken) - misc. updates

svn path=/trunk/externals/tb/; revision=3192
---
 chaos/src/gaussian_map.hpp | 84 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 chaos/src/gaussian_map.hpp

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

diff --git a/chaos/src/gaussian_map.hpp b/chaos/src/gaussian_map.hpp
new file mode 100644
index 0000000..5f5a4b1
--- /dev/null
+++ b/chaos/src/gaussian_map.hpp
@@ -0,0 +1,84 @@
+// 
+//  
+//  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"
+
+
+//  gaussian map: x[n+1] = exp(-b * x[n] * x[n]) + c
+//
+//  taken from Robert C. Hilborn: Chaos and Nonlinear Dynamics 
+
+class gaussian_map:
+	public map_base
+{
+public:
+	gaussian_map()
+	{
+		CHAOS_PRECONSTRUCTOR;
+		
+		CHAOS_SYS_INIT(x, 0.5, 0);
+
+		CHAOS_PAR_INIT(b,7);
+		CHAOS_PAR_INIT(c,0.5);
+
+		CHAOS_POSTCONSTRUCTOR;
+	}
+
+	~gaussian_map()
+	{
+		
+	}
+
+	virtual void m_step()
+	{
+		data_t data = m_data[0];
+
+		if (data == 0)
+			m_data[0] = 0.001;
+		else
+			m_data[0] = exp(-CHAOS_PARAMETER(b) * data * data)
+				+ CHAOS_PARAMETER(c);
+	}
+
+	CHAOS_SYSVAR_FUNCS_PRED(x, 0, m_pred_x);
+	bool m_pred_x(t_float f)
+	{
+		return (f >= 0) && (f < 1);
+	}
+
+	CHAOS_SYSPAR_FUNCS(b);
+	CHAOS_SYSPAR_FUNCS(c);
+
+};
+
+#define GAUSSIAN_MAP_CALLBACKS					\
+MAP_CALLBACKS;									\
+CHAOS_SYS_CALLBACKS(x);							\
+CHAOS_SYS_CALLBACKS(b);							\
+CHAOS_SYS_CALLBACKS(c);
+
+#define GAUSSIAN_MAP_ATTRIBUTES					\
+MAP_ATTRIBUTES;									\
+CHAOS_SYS_ATTRIBUTE(x);							\
+CHAOS_SYS_ATTRIBUTE(b);							\
+CHAOS_SYS_ATTRIBUTE(c);
+
+
+
-- 
cgit v1.2.1