1 files changed, 61 insertions, 0 deletions
diff --git a/chaos/src/tent_map.hpp b/chaos/src/tent_map.hpp
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+++ b/chaos/src/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"
+
+//  tent map: x[n+1] = 1 - 2*abs(x[n])
+//                     -1 < x[n] < 1
+//  taken from Julien C. Sprott, Strange Attractors: Creating Patterns in Chaos
+
+
+class tent_map:
+    public map_base<1>
+{
+public:
+    tent_map()
+    {
+        CHAOS_SYS_INIT(x, 0.6,0);
+    }
+
+
+    void m_step()
+    {
+        data_t data = m_data[0];
+
+        m_data[0] = 1 - 2*std::abs(data);
+    }
+
+    CHAOS_SYSVAR_FUNCS_PRED(x, 0, m_pred_x);
+    bool m_pred_x(t_float f)
+    {
+        return (f > -1) && (f < 1);
+    }
+};
+
+
+#define TENT_MAP_CALLBACKS                      \
+MAP_CALLBACKS                                   \
+CHAOS_SYS_CALLBACKS(x);
+
+#define TENT_MAP_ATTRIBUTES                     \
+MAP_ATTRIBUTES                                  \
+CHAOS_SYS_ATTRIBUTE(x);
+
+