mgcsinglecurve3.h

《3D游戏引擎设计》的源码

// Magic Software, Inc.
// http://www.magic-software.com
// Copyright (c) 2000, All Rights Reserved
//
// Source code from Magic Software is supplied under the terms of a license
// agreement and may not be copied or disclosed except in accordance with the
// terms of that agreement.  The various license agreements may be found at
// the Magic Software web site.  This file is subject to the license
//
// FREE SOURCE CODE
// http://www.magic-software.com/License/free.pdf

#ifndef MGCSINGLECURVE3_H
#define MGCSINGLECURVE3_H

#include "MgcSingleCurve.h"
#include "MgcVector3.h"


class MgcSingleCurve3 : public MgcSingleCurve<MgcVector3>
{
public:
    // abstract base class
    MgcSingleCurve3 (MgcReal fTMin, MgcReal fTMax);

    // differential geometric quantities
    MgcVector3 GetNormal (MgcReal fTime) const;
    MgcVector3 GetBinormal (MgcReal fTime) const;
    void GetFrame (MgcReal fTime, MgcVector3& kPosition, MgcVector3& kTangent,
        MgcVector3& kNormal, MgcVector3& kBinormal) const;
    MgcReal GetCurvature (MgcReal fTime) const;
    MgcReal GetTorsion (MgcReal fTime) const;
};

#endif