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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | // Geometric Tools, LLC
// Copyright (c) 1998-2014
// Distributed under the Boost Software License, Version 1.0.
// http://www.boost.org/LICENSE_1_0.txt
// http://www.geometrictools.com/License/Boost/LICENSE_1_0.txt
//
// File Version: 5.0.2 (2011/07/23)
#ifndef WM5RUNGEKUTTA4_H
#define WM5RUNGEKUTTA4_H
#include "Wm5MathematicsLIB.h"
#include "Wm5OdeSolver.h"
namespace Wm5
{
template <typename Real>
class WM5_MATHEMATICS_ITEM OdeRungeKutta4 : public OdeSolver<Real>
{
public:
// Construction and destruction.
OdeRungeKutta4 (int dim, Real step,
typename OdeSolver<Real>::Function function, void* userData = 0);
virtual ~OdeRungeKutta4 ();
virtual void Update (Real tIn, Real* xIn, Real& tOut, Real* xOut);
virtual void SetStepSize (Real step);
protected:
using OdeSolver<Real>::mDim;
using OdeSolver<Real>::mStep;
using OdeSolver<Real>::mFunction;
using OdeSolver<Real>::mUserData;
using OdeSolver<Real>::mFValue;
Real mHalfStep, mSixthStep;
Real* mTemp1;
Real* mTemp2;
Real* mTemp3;
Real* mTemp4;
Real* mXTemp;
};
typedef OdeRungeKutta4<float> OdeRungeKutta4f;
typedef OdeRungeKutta4<double> OdeRungeKutta4d;
}
#endif
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