KFbxNurb Class Reference

#include <kfbxnurb.h>

Inheritance diagram for KFbxNurb:

[legend]

List of all members.

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Detailed Description

A Nurbs surface is a type of parametric geometry.

A Nurbs surface is defined by the degree, form, knot vector and control points in the U and V directions.

For more information on the meaning of the form, knot vector and control points, see the documentation for the KFbxNurbsCurve. The same rules for the Nurbs curves apply to Nurbs surfaces. Nurbs surfaces simply have two dimensions (U and V).

Definition at line 62 of file kfbxnurb.h.

Nurb Properties
enum	ENurbType
	Nurb types. More...
void	SetSurfaceMode (KFbxGeometry::ESurfaceMode pMode)
	Set surface mode.
ESurfaceMode	GetSurfaceMode () const
	Get surface mode.
void	InitControlPoints (int pUCount, ENurbType pUType, int pVCount, ENurbType pVType)
	Allocate memory space for the array of control points as well as the knot and multiplicity vectors.
int	GetUCount () const
	Get number of control points in U direction.
int	GetVCount () const
	Get number of control points in V direction.
ENurbType	GetNurbUType () const
	Get nurb type in U direction.
ENurbType	GetNurbVType () const
	Get nurb type in V direction.
int	GetUKnotCount () const
	Get the number of elements in the knot vector in U direction.
double *	GetUKnotVector () const
	Get knot vector in U direction.
int	GetVKnotCount () const
	Get the number of elements in the knot vector in V direction.
double *	GetVKnotVector () const
	Get knot vector in V direction.
int *	GetUMultiplicityVector () const
	Get multiplicity control points in U direction.
int *	GetVMultiplicityVector () const
	Get multiplicity control points in V.
void	SetOrder (kUInt pUOrder, kUInt pVOrder)
	Set order.
int	GetUOrder () const
	Get nurb order in U direction.
int	GetVOrder () const
	Get nurb order in V direction.
void	SetStep (int pUStep, int pVStep)
	Set step.
int	GetUStep () const
	Get the number of divisions between adjacent control points in U direction.
int	GetVStep () const
	Get the number of divisions between adjacent control points in V direction.
int	GetUSpanCount () const
	Calculates the number of spans in the surface in the U direction.
int	GetVSpanCount () const
	Calculates the number of spans in the surface in the V direction.
Nurb Export Flags
void	SetApplyFlipUV (bool pFlag)
	Set the flag inducing UV flipping at export time.
bool	GetApplyFlipUV () const
	Get the flag inducing UV flipping at export time.
void	SetApplyFlipLinks (bool pFlag)
	Set the flag inducing link flipping at export time.
bool	GetApplyFlipLinks () const
	Get the flag inducing link flipping at export time.
bool	GetApplyFlip () const
	Get flip flags state.
Public Member Functions
virtual EAttributeType	GetAttributeType () const
	Return the type of node attribute which is EAttributeType::eNURB.
void	Reset ()
	Reset the nurb to default values.

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Member Enumeration Documentation

enum ENurbType

Nurb types.

• ePERIODIC
• eCLOSED
• eOPEN

Definition at line 92 of file kfbxnurb.h.

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Member Function Documentation

virtual EAttributeType GetAttributeType

(

)

const [virtual]

Return the type of node attribute which is EAttributeType::eNURB.

Reimplemented from KFbxGeometry.

void Reset

(

)

Reset the nurb to default values.

void SetSurfaceMode

(

KFbxGeometry::ESurfaceMode

pMode

)

Set surface mode.

Parameters:

pMode

Surface mode identifier (see class KfbxGeometry)

ESurfaceMode GetSurfaceMode

(

)

const [inline]

Get surface mode.

Returns:

Currently set surface mode identifier.

Definition at line 85 of file kfbxnurb.h.

void InitControlPoints	(	int	pUCount,
		ENurbType	pUType,
		int	pVCount,
		ENurbType	pVType
	)

Allocate memory space for the array of control points as well as the knot and multiplicity vectors.

Parameters:

	pUCount	Number of control points in U direction.
	pUType	Nurb type in U direction.
	pVCount	Number of control points in V direction.
	pVType	Nurb type in V direction.

Remarks:

This function should always be called after KFbxNurb::SetOrder().

int GetUCount

(

)

const [inline]

Get number of control points in U direction.

Returns:

Number of control points in U.

Definition at line 112 of file kfbxnurb.h.

int GetVCount

(

)

const [inline]

Get number of control points in V direction.

Returns:

Number of control points in V.

Definition at line 117 of file kfbxnurb.h.

ENurbType GetNurbUType

(

)

const [inline]

Get nurb type in U direction.

Returns:

Nurb type identifier.

Definition at line 122 of file kfbxnurb.h.

ENurbType GetNurbVType

(

)

const [inline]

Get nurb type in V direction.

Returns:

Nurb type identifier.

Definition at line 127 of file kfbxnurb.h.

int GetUKnotCount

(

)

const

Get the number of elements in the knot vector in U direction.

See KFbxNurbsCurve for more information.

Returns:

The number of control points in U direction.

double* GetUKnotVector

(

)

const

Get knot vector in U direction.

Returns:

Pointer to the array of knots.

int GetVKnotCount

(

)

const

Get the number of elements in the knot vector in V direction.

See KFbxNurbsCurve for more information.

Returns:

The number of control points in V direction. Nurb order in V

double* GetVKnotVector

(

)

const

Get knot vector in V direction.

Returns:

Pointer to the array of knots.

int* GetUMultiplicityVector

(

)

const

Get multiplicity control points in U direction.

Returns:

Pointer to the array of multiplicity values.

Remarks:

The length of this vector is equal to U count and its elements are set to 1 by default.

int* GetVMultiplicityVector

(

)

const

Get multiplicity control points in V.

Returns:

Pointer to the array of multiplicity values.

Remarks:

The length of this vector is equal to V count and its elements are set to 1 by default.

void SetOrder	(	kUInt	pUOrder,
		kUInt	pVOrder
	)

Set order.

Parameters:

	pUOrder	Nurb order in U direction.
	pVOrder	Nurb order in V direction.

int GetUOrder

(

)

const [inline]

Get nurb order in U direction.

Returns:

U order value.

Definition at line 172 of file kfbxnurb.h.

int GetVOrder

(

)

const [inline]

Get nurb order in V direction.

Returns:

V order value.

Definition at line 177 of file kfbxnurb.h.

void SetStep	(	int	pUStep,
		int	pVStep
	)

Set step.

The step is the number of divisions between adjacent control points.

Parameters:

	pUStep	Steps in U direction.
	pVStep	Steps in V direction.

int GetUStep

(

)

const [inline]

Get the number of divisions between adjacent control points in U direction.

Returns:

Step value in U direction.

Definition at line 189 of file kfbxnurb.h.

int GetVStep

(

)

const [inline]

Get the number of divisions between adjacent control points in V direction.

Returns:

Step value in V direction.

Definition at line 194 of file kfbxnurb.h.

int GetUSpanCount

(

)

const

Calculates the number of spans in the surface in the U direction.

See KFbxNurbsCurve::GetSpanCount() for more information.

Returns:

The number of spans in U if the surface has been initialized, -1 otherwise.

int GetVSpanCount

(

)

const

Calculates the number of spans in the surface in the V direction.

See KFbxNurbsCurve::GetSpanCount() for more information.

Returns:

The number of spans in V if the surface has been initialized, -1 otherwise.

void SetApplyFlipUV

(

bool

pFlag

)

Set the flag inducing UV flipping at export time.

Parameters:

pFlag

If true UV flipping will occur.

bool GetApplyFlipUV

(

)

const

Get the flag inducing UV flipping at export time.

Returns:

Current state of the UV flip flag.

void SetApplyFlipLinks

(

bool

pFlag

)

Set the flag inducing link flipping at export time.

Parameters:

pFlag

If true the links control points indices will be flipped.

bool GetApplyFlipLinks

(

)

const

Get the flag inducing link flipping at export time.

Returns:

Current state of the link flip flag.

bool GetApplyFlip

(

)

const [inline]

Get flip flags state.

Returns:

true if we need to flip either the UV or the links.

Definition at line 238 of file kfbxnurb.h.