#include <surf_api.h>

Class Description

See also: Class NURBSObject, Class NURBSTrimPoint.

Description:: This class describes the properties of a NURBS curve. This includes its number of trim points and its open/closed state. The Evaluate() method is used to compute points on the curve.

All methods of this class are implemented by the system.

Data Members:: protected:

int mMatID;

This data member is available in release 3.0 and later only.

The material ID for the curve.

Inheritance diagram for NURBSCurve:

Public Member Functions
DllExport	NURBSCurve (void)

virtual DllExport	~NURBSCurve (void)

DllExport NURBSCurve &	operator= (const NURBSCurve &curve)

DllExport BOOL	IsClosed (void)

DllExport int	NumTrimPoints ()

DllExport NURBSTrimPoint	GetTrimPoint (TimeValue t, int i)

DllExport BOOL	Evaluate (TimeValue t, double u, Point3 &pt, Point3 &tangent)

DllExport void	GetParameterRange (TimeValue t, double &uMin, double &uMax)

DllExport BOOL	GetNURBSData (TimeValue t, int &degree, int &numCVs, NURBSCVTab &cvs, int &numKnots, NURBSKnotTab &knots)

DllExport int	MatID ()

DllExport void	MatID (int id)

Public Member Functions inherited from NURBSObject
DllExport	NURBSObject (void)

virtual DllExport	~NURBSObject (void)

DllExport NURBSObject &	operator= (const NURBSObject &pt)

DllExport void	SetName (const MCHAR *name)

DllExport const MCHAR *	GetName (void)

DllExport NURBSType	GetType ()

DllExport NURBSKind	GetKind ()

DllExport NURBSId	GetId ()

DllExport void	SetId (NURBSId id)

DllExport void	SetNSet (NURBSSet *nset)

DllExport void	SetObject (Object *object)

DllExport Object *	GetMAXObject ()

DllExport NURBSSet *	GetNSet ()

DllExport int	GetIndex ()

DllExport BOOL	IsSelected ()

DllExport void	SetSelected (BOOL set)

Protected Attributes
int	mMatID

Protected Attributes inherited from NURBSObject
MCHAR	mName [NURBS_NAME_SIZE]

NURBSType	mType

NURBSKind	mKind

NURBSId	mId

Object *	mpObject

NURBSSet *	mpNSet

BOOL	mSelected

Friends
class	NURBSCVCurve

class	NURBSPointCurve

class	NURBSBlendCurve

class	NURBSOffsetCurve

class	NURBSXFormCurve

class	NURBSMirrorCurve

class	NURBSFilletCurve

class	NURBSChamferCurve

class	NURBSIsoCurve

class	NURBSSurfaceEdgeCurve

class	NURBSProjectVectorCurve

class	NURBSProjectNormalCurve

class	NURBSSurfaceNormalCurve

class	NURBSNBlendSurface

class	NURBSRuledSurface

class	NURBSULoftSurface

class	NURBSUVLoftSurface

class	NURBSExtrudeSurface

class	NURBSLatheSurface

class	NURBSCapSurface

class	NURBS1RailSweepSurface

class	NURBS2RailSweepSurface

class	NURBSMultiCurveTrimSurface

Additional Inherited Members
Static Public Member Functions inherited from MaxHeapOperators
static UtilExport void *	operator new (size_t size)
	Standard new operator used to allocate objects If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new (size_t size, const std::nothrow_t &e)
	Standard new operator used to allocate objects if there is insufficient memory, NULL will be returned. More...

static UtilExport void *	operator new (size_t size, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate objects that takes the type of memory, filename and line number where the new was called If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate objects that takes the filename and line number where the new was called If there is insufficient memory, NULL will be returned. More...

static UtilExport void *	operator new (size_t size, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate objects that takes extra flags to specify special operations If there is insufficient memory, NULL will be returned. More...

static UtilExport void *	operator new[] (size_t size)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...

static UtilExport void *	operator new[] (size_t size, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new[] (size_t size, int block_type, const char *filename, int line)
	New operator used to allocate arrays of objects. More...

static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, const char *filename, int line)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...

static UtilExport void *	operator new[] (size_t size, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, an exception will be thrown. More...

static UtilExport void *	operator new[] (size_t size, const std::nothrow_t &e, unsigned long flags)
	New operator used to allocate arrays of objects If there is insufficient memory, NULL will be returned. More...

static UtilExport void	operator delete (void *ptr)
	Standard delete operator used to deallocate an object If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an object If the pointer is invalid, nothing will happen. More...

static UtilExport void	operator delete (void ptr, const char filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete (void ptr, int block_type, const char filename, int line)
	Delete operator used to deallocate an object that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete (void ptr, const std::nothrow_t &e, const char filename, int line)
	Delete operator used to deallocate an object that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...

static UtilExport void	operator delete (void *ptr, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an object that takes extra flags to specify special operations If the pointer is invalid, nothing will happen. More...

static UtilExport void	operator delete[] (void *ptr)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e)
	Standard delete operator used to deallocate an array of objects If the pointer is invalid, nothing will happen. More...

static UtilExport void	operator delete[] (void ptr, const char filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete[] (void ptr, int block_type, const char filename, int line)
	Delete operator used to deallocate an array of objects that takes the type of memory, filename and line number where the delete was called If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete[] (void ptr, const std::nothrow_t &e, const char filename, int line)
	Delete operator used to deallocate an array of objects that takes the filename and line number where the delete was called If the pointer is invalid, nothing will happen. More...

static UtilExport void	operator delete[] (void *ptr, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...

static UtilExport void	operator delete[] (void *ptr, const std::nothrow_t &e, unsigned long flags)
	Delete operator used to deallocate an array of objects that takes extra flags to specify special operations If the pointer is invalid, an exception will be thrown. More...

static UtilExport void *	operator new (size_t size, void *placement_ptr)
	Placement new operator. More...

static UtilExport void	operator delete (void ptr, void placement_ptr)
	Placement delete operator. More...

static UtilExport void *	aligned_malloc (size_t size, size_t alignment)
	Allocates memory on a specified alignment boundary. More...

static UtilExport void *	aligned_realloc (void *ptr, size_t size, size_t alignment)
	Reallocates memory on a specified alignment boundary. More...

static UtilExport void	aligned_free (void *ptr)
	Frees a block of memory that was allocated with aligned_malloc/aligned_realloc. More...

Protected Member Functions inherited from NURBSObject
DllExport void	Clean (NURBSIdTab ids)

Constructor & Destructor Documentation

DllExport NURBSCurve ( void )

Remarks: Constructor. The data members are initialized as follows:

mKind = kNURBSCurve;

mMatID = 1;

virtual DllExport ~NURBSCurve ( void )

virtual

Remarks: Destructor.

Member Function Documentation

DllExport NURBSCurve& operator= ( const NURBSCurve & curve )

Remarks: Assignment operator.

Parameters:: const NURBSCurve& curve

The curve to assign.

DllExport BOOL IsClosed ( void )

Remarks: Returns TRUE if the curve is closed; otherwise FALSE.

DllExport int NumTrimPoints ( )

Remarks: Returns the number of trim points in the curve.

DllExport NURBSTrimPoint GetTrimPoint	(	TimeValue	t,
		int	i
	)

Remarks: Returns the 'i-th' trim point.

Parameters:: TimeValue t

The time to retrieve the trim point.

int i

The zero based index of the trim point to return.

DllExport BOOL Evaluate	(	TimeValue	t,
		double	u,
		Point3 &	pt,
		Point3 &	tangent
	)

Remarks: Retrieves the point along the curve at the specified point and the tangent at that point.

Parameters:: TimeValue t

The time to evaluate the curve.

double u

Specifies the point along the curve to evaluate. This value must be between the uMin and uMax as returned from GetParameterRange().

Point3& pt

The point along the curve is returned here.

Point3& tangent

The tangent at the specified point is returned here.

Returns: TRUE if the method was able to evaluate the curve; otherwise FALSE.

DllExport void GetParameterRange	(	TimeValue	t,
		double &	uMin,
		double &	uMax
	)

Remarks: Retrieves the minimum and maximum valid values for u as passed to Evaluate().

Parameters:: TimeValue t

The time to get the parameter range of the curve.

double& uMin

The minimum value is returned here.

double& uMax

The maximum value is returned here.

DllExport BOOL GetNURBSData	(	TimeValue	t,
		int &	degree,
		int &	numCVs,
		NURBSCVTab &	cvs,
		int &	numKnots,
		NURBSKnotTab &	knots
	)

Remarks: Retrieves data about the NURBSCurve at the specified time.

Parameters:: TimeValue t

The time at which to get the NURBS information.

int& degree

The degree of the curve.

int& numCVs

The number of CVs.

NURBSCVTab& cvs

The table of CVs. Note: typedef Tab<NURBSControlVertex> NURBSCVTab;

int& numKnots

The number of knots.

NURBSKnotTab knots

A table of knots in U. Note: typedef Tab<double> NURBSKnotTab;