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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.
#ifndef __ode_base_hpp
#include "chaos_base.hpp"
class ode_base
: protected chaos_base
{
public:
void set_method(int i)
{
if (i >=0 && i <4)
m_method = (unsigned char) i;
post("no such method");
}
t_int get_method()
{
return (int) m_method;
}
void set_dt(t_float f)
{
if (f >= 0)
m_dt = (data_t)f;
else
post("invalid value for dt: %f", f);
}
t_float get_dt()
{
return (t_float) m_dt;
}
void m_step();
protected:
unsigned char m_method; /* 0: rk1, 1: rk2, 3: rk4 */
data_t m_dt; /* step width */
data_t* m_k[3]; /* temporary arrays for runge kutta */
data_t* m_tmp;
virtual void m_system (data_t* deriv, data_t* data);
void rk1 ();
void rk2 ();
void rk4 ();
};
#define ODE_CALLBACKS \
CHAOS_CALLBACKS; \
FLEXT_CALLVAR_I(m_system->get_method, m_system->set_method); \
FLEXT_CALLVAR_F(m_system->get_dt, m_system->set_dt);
#define ODE_ATTRIBUTES \
CHAOS_ATTRIBUTES; \
FLEXT_ADDATTR_VAR("method", m_system->get_method, m_system->set_method); \
FLEXT_ADDATTR_VAR("dt",m_system->get_dt, m_system->set_dt);
#define __ode_base_hpp
#endif /* __ode_base_hpp */
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