KFbxNurb
#include<kfbxnurb.h>

Inheritance diagram for KFbxNurb:

Inheritance graph
[legend]

List of all members.

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 theKFbxNurbsCurve. The same rules for the Nurbs curves apply to Nurbs surfaces. Nurbs surfaces simply have two dimensions (U and V).

Definition at line66of filekfbxnurb.h.


Nurb Properties

enum ENurbType
 Nurb types.More...
void SetSurfaceMode(KFbxGeometry::ESurfaceModepMode)
 Set surface mode.
ESurfaceMode GetSurfaceMode() const
 Get surface mode.
void InitControlPoints(int pUCount,ENurbTypepUType, int pVCount,ENurbTypepVType)
 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.

Member Enumeration Documentation

Nurb types.

  • ePERIODIC
  • eCLOSED
  • eOPEN

Definition at line96of filekfbxnurb.h.

Member Function Documentation

virtual EAttributeType GetAttributeType( ) const[virtual]

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

Reimplemented fromKFbxGeometry.

void Reset( ) 

Reset the nurb to default values.

void SetSurfaceMode(KFbxGeometry::ESurfaceMode pMode ) 

Set surface mode.

Parameters:
pMode Surface mode identifier (see class KfbxGeometry)

ESurfaceModeGetSurfaceMode( ) const[inline]

Get surface mode.

Returns:
Currently set surface mode identifier.

Definition at line89of filekfbxnurb.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 afterKFbxNurb::SetOrder().

int GetUCount( ) const[inline]

Get number of control points in U direction.

Returns:
Number of control points in U.

Definition at line116of filekfbxnurb.h.

int GetVCount( ) const[inline]

Get number of control points in V direction.

Returns:
Number of control points in V.

Definition at line121of filekfbxnurb.h.

ENurbTypeGetNurbUType( ) const[inline]

Get nurb type in U direction.

Returns:
Nurb type identifier.

Definition at line126of filekfbxnurb.h.

ENurbTypeGetNurbVType( ) const[inline]

Get nurb type in V direction.

Returns:
Nurb type identifier.

Definition at line131of filekfbxnurb.h.

int GetUKnotCount( ) const

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

SeeKFbxNurbsCurvefor 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.

SeeKFbxNurbsCurvefor 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 line176of filekfbxnurb.h.

int GetVOrder( ) const[inline]

Get nurb order in V direction.

Returns:
V order value.

Definition at line181of filekfbxnurb.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 line193of filekfbxnurb.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 line198of filekfbxnurb.h.

int GetUSpanCount( ) const

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

SeeKFbxNurbsCurve::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.

SeeKFbxNurbsCurve::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 IftrueUV 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 Iftruethe 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:
trueif we need to flip either the UV or the links.

Definition at line242of filekfbxnurb.h.