KnotVector Class Reference

#include <nurbs.hpp>

Collaboration diagram for KnotVector:

List of all members.

Public Member Functions
	KnotVector ()
	Create KnotVector.
	KnotVector (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.
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)
void	CalcDShape (Vector &grad, int i, double xi)
void	Difference (const KnotVector &kv, Vector &diff) const
void	UniformRefinement (Vector &newknots) const
KnotVector *	DegreeElevate (int t) const
void	Flip ()
void	Print (ostream &out) const
	~KnotVector ()
	Destroys KnotVector.
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

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Detailed Description

Definition at line 15 of file nurbs.hpp.

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Constructor & Destructor Documentation

KnotVector::KnotVector

(

)

[inline]

Create KnotVector.

Definition at line 25 of file nurbs.hpp.

Referenced by DegreeElevate().

KnotVector::KnotVector

(

istream &

input

)

Definition at line 17 of file nurbs.cpp.

References GetElements(), knot, Vector::Load(), NumOfControlPoints, and Order.

KnotVector::KnotVector	(	int	Order_,
		int	NCP
	)

Definition at line 24 of file nurbs.cpp.

References knot, NumOfControlPoints, Order, and Vector::SetSize().

KnotVector::KnotVector

(

const KnotVector &

kv

)

[inline]

Definition at line 28 of file nurbs.hpp.

KnotVector::~KnotVector

(

)

[inline]

Destroys KnotVector.

Definition at line 62 of file nurbs.hpp.

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Member Function Documentation

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

Definition at line 147 of file nurbs.cpp.

References getKnotLocation(), knot, MaxOrder, mfem_error(), and Order.

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

Definition at line 118 of file nurbs.cpp.

References getKnotLocation(), knot, MaxOrder, mfem_error(), and Order.

KnotVector * KnotVector::DegreeElevate

(

int

t

)

const

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

Definition at line 45 of file nurbs.cpp.

References GetElements(), GetNCP(), knot, KnotVector(), mfem_error(), Order, and Vector::Size().

Referenced by NURBSExtension::NURBSExtension().

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

Definition at line 226 of file nurbs.cpp.

References Difference(), GetOrder(), knot, mfem_error(), Order, Vector::SetSize(), and Size().

Referenced by Difference(), and NURBSPatch::KnotInsert().

int KnotVector::findKnotSpan

(

double

u

)

const

Definition at line 197 of file nurbs.cpp.

References knot, NumOfControlPoints, and Order.

Referenced by NURBSPatch::KnotInsert().

void KnotVector::Flip

(

)

Definition at line 98 of file nurbs.cpp.

References knot, NumOfControlPoints, Order, and Vector::Size().

void KnotVector::GetElements

(

)

Count the number of elements.

Definition at line 86 of file nurbs.cpp.

References knot, NumOfControlPoints, NumOfElements, and Order.

Referenced by NURBSPatch::DegreeElevate(), DegreeElevate(), Interpolate(), NURBSPatch::KnotInsert(), KnotVector(), and Revolve3D().

double KnotVector::getKnotLocation	(	double	xi,
		int	ni
	)		const [inline]

Definition at line 43 of file nurbs.hpp.

References knot.

Referenced by CalcDShape(), and CalcShape().

int KnotVector::GetNCP

(

)

const [inline]

Definition at line 34 of file nurbs.hpp.

References NumOfControlPoints.

Referenced by NURBSPatch::DegreeElevate(), DegreeElevate(), NURBSExtension::GenerateOffsets(), NURBSPatch::KnotInsert(), NURBSPatchMap::SetBdrPatchDofMap(), and NURBSPatchMap::SetPatchDofMap().

int KnotVector::GetNE

(

)

const [inline]

Definition at line 32 of file nurbs.hpp.

References NumOfElements.

Referenced by NURBSPatch::DegreeElevate(), NURBSExtension::GenerateOffsets(), NURBSPatchMap::SetBdrPatchVertexMap(), and NURBSPatchMap::SetPatchVertexMap().

int KnotVector::GetNKS

(

)

const [inline]

Definition at line 33 of file nurbs.hpp.

References NumOfControlPoints, and Order.

Referenced by NURBSExtension::Generate2DBdrElementDofTable(), NURBSExtension::Generate2DElementDofTable(), NURBSExtension::Generate3DBdrElementDofTable(), and NURBSExtension::Generate3DElementDofTable().

int KnotVector::GetOrder

(

)

const [inline]

Definition at line 35 of file nurbs.hpp.

References Order.

Referenced by NURBSPatch::DegreeElevate(), Difference(), and NURBSPatch::KnotInsert().

bool KnotVector::isElement

(

int

i

)

const [inline]

Definition at line 41 of file nurbs.hpp.

References knot, and Order.

KnotVector & KnotVector::operator=

(

const KnotVector &

kv

)

Definition at line 33 of file nurbs.cpp.

References knot, NumOfControlPoints, NumOfElements, and Order.

const double& KnotVector::operator[]

(

int

i

)

const [inline]

Definition at line 65 of file nurbs.hpp.

References knot.

double& KnotVector::operator[]

(

int

i

)

[inline]

Definition at line 64 of file nurbs.hpp.

References knot.

void KnotVector::Print

(

ostream &

out

)

const

Definition at line 111 of file nurbs.cpp.

References knot, NumOfControlPoints, Order, Vector::Print(), and Vector::Size().

int KnotVector::Size

(

)

const [inline]

Definition at line 36 of file nurbs.hpp.

References knot, and Vector::Size().

Referenced by Difference().

void KnotVector::UniformRefinement

(

Vector &

newknots

)

const

Definition at line 72 of file nurbs.cpp.

References knot, NumOfElements, Vector::SetSize(), and Vector::Size().

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Member Data Documentation

Vector KnotVector::knot [protected]

Definition at line 20 of file nurbs.hpp.

Referenced by CalcDShape(), CalcShape(), DegreeElevate(), Difference(), findKnotSpan(), Flip(), GetElements(), getKnotLocation(), isElement(), KnotVector(), operator=(), operator[](), Print(), Size(), and UniformRefinement().

const int KnotVector::MaxOrder = 10 [static, protected]

Definition at line 18 of file nurbs.hpp.

Referenced by CalcDShape(), and CalcShape().

int KnotVector::NumOfControlPoints [protected]

Definition at line 21 of file nurbs.hpp.

Referenced by findKnotSpan(), Flip(), GetElements(), GetNCP(), GetNKS(), KnotVector(), operator=(), and Print().

int KnotVector::NumOfElements [protected]

Definition at line 21 of file nurbs.hpp.

Referenced by GetElements(), GetNE(), operator=(), and UniformRefinement().

int KnotVector::Order [protected]

Definition at line 21 of file nurbs.hpp.

Referenced by CalcDShape(), CalcShape(), DegreeElevate(), Difference(), findKnotSpan(), Flip(), GetElements(), GetNKS(), GetOrder(), isElement(), KnotVector(), operator=(), and Print().

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

• nurbs.hpp
• nurbs.cpp