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Diffstat (limited to 'chaos/src/tent_map.hpp')
-rw-r--r-- | chaos/src/tent_map.hpp | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/chaos/src/tent_map.hpp b/chaos/src/tent_map.hpp new file mode 100644 index 0000000..b0961ee --- /dev/null +++ b/chaos/src/tent_map.hpp @@ -0,0 +1,61 @@ +// +// +// 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); + + |