Merge branchesHEADsvn2git-headmaster

- abstractions/tb
- externals/tb

1 files changed, 94 insertions, 0 deletions

diff --git a/chaos/src/bungalow_tent_map.hpp b/chaos/src/bungalow_tent_map.hpp
new file mode 100644
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+++ b/chaos/src/bungalow_tent_map.hpp
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+// 
+//  
+//  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"
+
+//  bungalow_tent map: x[n+1] = 1 + 2 * r + 2 * (r + 1) * x[n] 
+//                                                (for -1 <= x[n] < -0.5f)
+//                              1 + 2 * (1 - r) * (x[n])
+//                                                (for -0.5 <= x[n] < 0)
+//                              1 + 2 * (r - 1) * (x[n])
+//                                                (for 0 <= x[n] < 0.5)
+//                              1 + 2 * r - 2 * (r + 1) * (x[n])
+//                                                (for 0.5 <= x[n] < 1)
+//                              -1 <= x[n] <  1
+//                              -0.5 <= r < 1
+//  taken from Willi-Hans Steeb: Chaos and Fractals
+
+class bungalow_tent:
+	public map_base<1>
+{
+public:
+	bungalow_tent()
+	{
+		CHAOS_SYS_INIT(x, 0.6,0);
+		CHAOS_PAR_INIT(r, 0.5);
+	}
+
+	void m_step()
+	{
+		data_t x = m_data[0];
+		data_t r = CHAOS_PARAMETER(r);
+		
+		if ( x < - 0.5)
+		{
+			m_data[0] = 1 + 2 * r + 2 * (r + 1) * x;
+			return;
+		}
+		if ( x < 0)
+		{
+			m_data[0] = 1 + 2 * (1 - r) * x;
+			return;
+		}
+		if ( x < 0.5)
+		{
+			m_data[0] = 1 + 2 * (r - 1) * x;
+			return;
+		}
+		else
+		{
+			m_data[0] = 1 + 2 * r - 2 * (r + 1) * x;
+			return;
+		}
+
+	}
+
+	CHAOS_SYSVAR_FUNCS_PRED(x, 0, m_pred_x);
+	bool m_pred_x(t_float f)
+	{
+		return (f >= -1) && (f < 1);
+	}
+
+	CHAOS_SYSPAR_FUNCS_PRED(r, m_pred_r);
+	bool m_pred_r(t_float f)
+	{
+		return (f >= -0.5) && (f < 1);
+	}
+};
+
+#define BUNGALOW_TENT_CALLBACKS					\
+MAP_CALLBACKS;									\
+CHAOS_SYS_CALLBACKS(x);							\
+CHAOS_SYS_CALLBACKS(r);
+
+#define BUNGALOW_TENT_ATTRIBUTES				\
+MAP_ATTRIBUTES;									\
+CHAOS_SYS_ATTRIBUTE(x)							\
+CHAOS_SYS_ATTRIBUTE(r)