mfem::KnotVector Class Reference

#include <nurbs.hpp>

Collaboration diagram for mfem::KnotVector:

Public Member Functions
	KnotVector ()
	Create KnotVector. More...
	KnotVector (std::istream &input)
	KnotVector (int Order_, int NCP)
	KnotVector (const KnotVector &kv)
KnotVector &	operator= (const KnotVector &kv)
int	GetNE () const
int	GetNKS () const
int	GetNCP () const
int	GetOrder () const
int	Size () const
void	GetElements ()
	Count the number of elements. More...
bool	isElement (int i) const
double	getKnotLocation (double xi, int ni) const
int	findKnotSpan (double u) const
void	CalcShape (Vector &shape, int i, double xi) const
void	CalcDShape (Vector &grad, int i, double xi) const
void	CalcDnShape (Vector &gradn, int n, int i, double xi) const
void	CalcD2Shape (Vector &grad2, int i, double xi) const
void	FindMaxima (Array< int > &ks, Vector &xi, Vector &u)
void	FindInterpolant (Array< Vector *> &x)
void	Difference (const KnotVector &kv, Vector &diff) const
void	UniformRefinement (Vector &newknots) const
KnotVector *	DegreeElevate (int t) const
void	Flip ()
void	Print (std::ostream &out) const
void	PrintFunctions (std::ostream &out, int samples=11) const
	~KnotVector ()
	Destroys KnotVector. More...
double &	operator[] (int i)
const double &	operator[] (int i) const

Protected Attributes
Vector	knot
int	Order
int	NumOfControlPoints
int	NumOfElements

Static Protected Attributes
static const int	MaxOrder = 10

Detailed Description

Definition at line 32 of file nurbs.hpp.

Constructor & Destructor Documentation

KnotVector() [1/4]

mfem::KnotVector::KnotVector ( )

inline

Create KnotVector.

Definition at line 42 of file nurbs.hpp.

KnotVector() [2/4]

mfem::KnotVector::KnotVector

(

std::istream &

input

)

Definition at line 30 of file nurbs.cpp.

KnotVector() [3/4]

mfem::KnotVector::KnotVector	(	int	Order_,
		int	NCP
	)

Definition at line 37 of file nurbs.cpp.

KnotVector() [4/4]

mfem::KnotVector::KnotVector ( const KnotVector &  kv )

inline

Definition at line 45 of file nurbs.hpp.

~KnotVector()

mfem::KnotVector::~KnotVector ( )

inline

Destroys KnotVector.

Definition at line 94 of file nurbs.hpp.

Member Function Documentation

CalcD2Shape()

void mfem::KnotVector::CalcD2Shape ( Vector &  grad2, int  i, double  xi  ) const

inline

Definition at line 68 of file nurbs.hpp.

CalcDnShape()

void mfem::KnotVector::CalcDnShape	(	Vector &	gradn,
		int	n,
		int	i,
		double	xi
	)		const

Definition at line 245 of file nurbs.cpp.

CalcDShape()

void mfem::KnotVector::CalcDShape	(	Vector &	grad,
		int	i,
		double	xi
	)		const

Definition at line 188 of file nurbs.cpp.

CalcShape()

void mfem::KnotVector::CalcShape	(	Vector &	shape,
		int	i,
		double	xi
	)		const

Definition at line 161 of file nurbs.cpp.

DegreeElevate()

KnotVector * mfem::KnotVector::DegreeElevate

(

int

t

)

const

Return a new KnotVector with elevated degree by repeating the endpoints of the knot vector.

Note

The returned object should be deleted by the caller.

Definition at line 58 of file nurbs.cpp.

Difference()

void mfem::KnotVector::Difference	(	const KnotVector &	kv,
		Vector &	diff
	)		const

Definition at line 471 of file nurbs.cpp.

FindInterpolant()

void mfem::KnotVector::FindInterpolant

(

Array< Vector *> &

x

)

Global curve interpolation through the points x. x is an array with the length of the spatial dimension containing vectors with spatial coordinates. The controlpoints of the interpolated curve are given in x in the same form.

Definition at line 409 of file nurbs.cpp.

findKnotSpan()

int mfem::KnotVector::findKnotSpan

(

double

u

)

const

Definition at line 442 of file nurbs.cpp.

FindMaxima()

void mfem::KnotVector::FindMaxima	(	Array< int > &	ks,
		Vector &	xi,
		Vector &	u
	)

Gives the locations of the maxima of the knotvector in reference space. The function gives the knotspan ks, the coordinate in the knotspan xi and the coordinate of the maximum in parameter space u

Definition at line 346 of file nurbs.cpp.

Flip()

void mfem::KnotVector::Flip

(

)

Definition at line 113 of file nurbs.cpp.

GetElements()

void mfem::KnotVector::GetElements

(

)

Count the number of elements.

Definition at line 101 of file nurbs.cpp.

getKnotLocation()

double mfem::KnotVector::getKnotLocation ( double  xi, int  ni  ) const

inline

Definition at line 60 of file nurbs.hpp.

GetNCP()

int mfem::KnotVector::GetNCP ( ) const

inline

Definition at line 51 of file nurbs.hpp.

GetNE()

int mfem::KnotVector::GetNE ( ) const

inline

Definition at line 49 of file nurbs.hpp.

GetNKS()

int mfem::KnotVector::GetNKS ( ) const

inline

Definition at line 50 of file nurbs.hpp.

GetOrder()

int mfem::KnotVector::GetOrder ( ) const

inline

Definition at line 52 of file nurbs.hpp.

isElement()

bool mfem::KnotVector::isElement ( int  i ) const

inline

Definition at line 58 of file nurbs.hpp.

operator=()

KnotVector & mfem::KnotVector::operator=

(

const KnotVector &

kv

)

Definition at line 46 of file nurbs.cpp.

operator[]() [1/2]

double& mfem::KnotVector::operator[] ( int  i )

inline

Definition at line 96 of file nurbs.hpp.

operator[]() [2/2]

const double& mfem::KnotVector::operator[] ( int  i ) const

inline

Definition at line 97 of file nurbs.hpp.

Print()

void mfem::KnotVector::Print

(

std::ostream &

out

)

const

Definition at line 126 of file nurbs.cpp.

PrintFunctions()

void mfem::KnotVector::PrintFunctions	(	std::ostream &	out,
		int	samples = 11
	)		const

Definition at line 133 of file nurbs.cpp.

Size()

int mfem::KnotVector::Size ( ) const

inline

Definition at line 53 of file nurbs.hpp.

UniformRefinement()

void mfem::KnotVector::UniformRefinement

(

Vector &

newknots

)

const

Definition at line 87 of file nurbs.cpp.

Member Data Documentation

knot

Vector mfem::KnotVector::knot

protected

Definition at line 37 of file nurbs.hpp.

MaxOrder

const int mfem::KnotVector::MaxOrder = 10

staticprotected

Definition at line 35 of file nurbs.hpp.

NumOfControlPoints

int mfem::KnotVector::NumOfControlPoints

protected

Definition at line 38 of file nurbs.hpp.

NumOfElements

int mfem::KnotVector::NumOfElements

protected

Definition at line 38 of file nurbs.hpp.

Order

int mfem::KnotVector::Order

protected

Definition at line 38 of file nurbs.hpp.

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The documentation for this class was generated from the following files:

• mesh/nurbs.hpp
• mesh/nurbs.cpp