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// Wild Magic Source Code
// David Eberly
// http://www.geometrictools.com
// Copyright (c) 1998-2007
//
// This library is free software; you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or (at
// your option) any later version. The license is available for reading at
// either of the locations:
// http://www.gnu.org/copyleft/lgpl.html
// http://www.geometrictools.com/License/WildMagicLicense.pdf
// The license applies to versions 0 through 4 of Wild Magic.
//
// Version: 4.0.0 (2006/06/28)
#ifndef WM4BANDEDMATRIX_H
#define WM4BANDEDMATRIX_H
#include "Wm4FoundationLIB.h"
#include "Wm4System.h"
namespace Wm4
{
template <class Real>
class BandedMatrix
{
public:
BandedMatrix (int iSize, int iLBands, int iUBands);
BandedMatrix (const BandedMatrix& rkM);
~BandedMatrix ();
BandedMatrix& operator= (const BandedMatrix& rkM);
int GetSize () const;
int GetLBands () const;
int GetUBands () const;
Real* GetDBand ();
const Real* GetDBand () const;
int GetLBandMax (int i) const; // LBand(i): 0 <= index < LBandMax
Real* GetLBand (int i);
const Real* GetLBand (int i) const;
int GetUBandMax (int i) const; // UBand(i): 0 <= index < UBandMax
Real* GetUBand (int i);
const Real* GetUBand (int i) const;
Real& operator() (int iRow, int iCol);
Real operator() (int iRow, int iCol) const;
void SetZero ();
void SetIdentity ();
private:
void Allocate ();
void Deallocate ();
int m_iSize, m_iLBands, m_iUBands;
Real* m_afDBand;
Real** m_aafLBand;
Real** m_aafUBand;
};
}
#include "Wm4BandedMatrix.inl"
namespace Wm4
{
typedef BandedMatrix<float> BandedMatrixf;
typedef BandedMatrix<double> BandedMatrixd;
}
#endif
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