kfbxnurbscurve.h

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#ifndef FBXFILESDK_KFBXPLUGINS_KFBXNURBSCURVE_H
#define FBXFILESDK_KFBXPLUGINS_KFBXNURBSCURVE_H

/**************************************************************************************

 Copyright (C) 2001 - 2010 Autodesk, Inc. and/or its licensors.
 All Rights Reserved.

 The coded instructions, statements, computer programs, and/or related material 
 (collectively the "Data") in these files contain unpublished information 
 proprietary to Autodesk, Inc. and/or its licensors, which is protected by 
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 THE DATA IS PROVIDED "AS IS" AND WITHOUT WARRANTY.
 ALL WARRANTIES ARE EXPRESSLY EXCLUDED AND DISCLAIMED. AUTODESK MAKES NO
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 OF THE DATA WILL BE UNINTERRUPTED OR ERROR FREE. 
 
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**************************************************************************************/
#include <fbxfilesdk/fbxfilesdk_def.h>

#include <fbxfilesdk/kfbxplugins/kfbxgeometry.h>
#include <fbxfilesdk/kfbxplugins/kfbxline.h>

#include <fbxfilesdk/fbxfilesdk_nsbegin.h>

class KFBX_DLL KFbxNurbsCurve : public KFbxGeometry 
{
    KFBXOBJECT_DECLARE(KFbxNurbsCurve,KFbxGeometry);
public:
    virtual KFbxNodeAttribute::EAttributeType GetAttributeType() const;

    enum EDimension
    {
        e2D = 2,
        e3D,
        eDIMENSIONS_COUNT = 2
    };

    enum EType
    {
        eOPEN,
        eCLOSED,
        ePERIODIC,
        eTYPE_COUNT
    }; 

    void InitControlPoints( int pCount, EType pVType );

    inline double* GetKnotVector() const { return mKnotVector; }

    int GetKnotCount() const;

    inline void SetOrder( int pOrder ) { mOrder = pOrder; }

    inline int GetOrder() const { return mOrder; }

    inline void SetStep( int pStep ) { mStep = pStep; }

    inline int GetStep() const { return mStep; }

    inline void SetDimension( EDimension pDimension ) { mDimension = pDimension; }

    inline EDimension GetDimension() const { return mDimension; }

    bool IsRational(); 

    int GetSpanCount() const;

    inline EType GetType() const { return mNurbType; }

    inline bool IsPolyline() const { return ( GetOrder() == 2 ); }

    bool IsBezier() const;

    int TessellateCurve(KArrayTemplate<KFbxVector4>& pPointArray, int pStep = 16);

    KFbxLine* TessellateCurve(int pStep = 16);

//
//  WARNING!
//
//  Anything beyond these lines may not be documented accurately and is 
//  subject to change without notice.
//
#ifndef DOXYGEN_SHOULD_SKIP_THIS

    virtual KFbxObject& Copy(const KFbxObject& pObject);

    bool FullMultiplicity() const;

    // Error identifiers, these are only used internally.
    typedef enum 
    {
        eNurbCurveTypeUnknown,
        eWeightTooSmall,
        eKnotVectorError,
        eWrongNumberOfControlPoint,

        /*
        
        eUMultiplicityVectorError,
        eVMultiplicityVectorError,
        ,
        eVKnotVectorError, */
        eErrorCount
    } EError;

protected:
    KFbxNurbsCurve(KFbxSdkManager& pManager, char const* pName);
    
    void Reset();

    virtual void Destruct(bool pRecursive, bool pDependents);

public:
    //To maintain compatibility
    bool mIsRational;

private:
    double* mKnotVector;
    EType mNurbType;
    int mOrder;
    EDimension mDimension; 
    //To tessellate curve, it denotes the evaluation frequency between two neighbor knots.
    int mStep;
#endif
};

typedef KFbxNurbsCurve* HKFbxNurbsCurve;
typedef class KFBX_DLL KArrayTemplate< KFbxNurbsCurve* > KArrayKFbxNurbsCurve;


#include <fbxfilesdk/fbxfilesdk_nsend.h>

#endif // FBXFILESDK_KFBXPLUGINS_KFBXNURBSCURVE_H