fbxnurbscurve.h

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/****************************************************************************************
 
   Copyright (C) 2015 Autodesk, Inc.
   All rights reserved.
 
   Use of this software is subject to the terms of the Autodesk license agreement
   provided at the time of installation or download, or which otherwise accompanies
   this software in either electronic or hard copy form.
 
****************************************************************************************/

#ifndef _FBXSDK_SCENE_GEOMETRY_NURBS_CURVE_H_
#define _FBXSDK_SCENE_GEOMETRY_NURBS_CURVE_H_

#include <fbxsdk/fbxsdk_def.h>

#include <fbxsdk/scene/geometry/fbxgeometry.h>
#include <fbxsdk/scene/geometry/fbxline.h>

#include <fbxsdk/fbxsdk_nsbegin.h>

class FBXSDK_DLL FbxNurbsCurve : public FbxGeometry 
{
    FBXSDK_OBJECT_DECLARE(FbxNurbsCurve,FbxGeometry);

public:
    virtual FbxNodeAttribute::EType GetAttributeType() const;

    enum EDimension
    {
        e2D = 2,
        e3D
    };

    enum EType
    {
        eOpen,
        eClosed,
        ePeriodic
    }; 

    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 mNurbsType; }

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

    bool IsBezier() const;

    int TessellateCurve(FbxArray<FbxVector4>& pPointArray, int pStep = 16);

    FbxLine* TessellateCurve(int pStep = 16);

/*****************************************************************************************************************************
** WARNING! Anything beyond these lines is for internal use, may not be documented and is subject to change without notice! **
*****************************************************************************************************************************/
#ifndef DOXYGEN_SHOULD_SKIP_THIS
    virtual FbxObject& Copy(const FbxObject& pObject);

    bool FullMultiplicity() const;

    // Error identifiers, these are only used internally.
    enum EErrorCode
    {
        eNurbsCurveTypeUnknown,
        eWeightTooSmall,
        eKnotVectorError,
        eWrongNumberOfControlPoint,
        eErrorCount
    };

    bool mIsRational;

    virtual void SetControlPointAt(const FbxVector4 &pCtrlPoint , int pIndex) { ParentClass::SetControlPointAt(pCtrlPoint, pIndex); }
    virtual void InitControlPoints(int pCount)                                { ParentClass::InitControlPoints(pCount);             }

protected:
    virtual void Construct(const FbxObject* pFrom);
    virtual void Destruct(bool pRecursive);

    void Reset();

private:
    double*     mKnotVector;
    EType       mNurbsType;
    int         mOrder;
    EDimension  mDimension; 
    int         mStep;
#endif /* !DOXYGEN_SHOULD_SKIP_THIS *****************************************************************************************/
};

#include <fbxsdk/fbxsdk_nsend.h>

#endif /* _FBXSDK_SCENE_GEOMETRY_NURBS_CURVE_H_ */