Base class for NURBS classes. More...

#include <MathAlgo/Nurbs/NurbsBase.hh>

Inheritance diagram for BIAS::NurbsBase:

Collaboration diagram for BIAS::NurbsBase:

Public Member Functions
int	GetDegree () const
	Returns the degree of the NURBS. More...

double	GetKnot (int dim, int index) const
	Returns the position of a knot with a given index of a given dimension. More...

int	GetNumCtrlPts () const
	Returns the number of control points per dimension. More...

int	GetNumKnots () const
	Returns the number of knots of the NURBS. More...

	NurbsBase (int knotsPerDim=4, int degree=2, int dimension=1)
	Standard Constructor. More...

void	SetKnot (int dim, int index, double value)
	Set the position of a knot with a given index and of a given dimension. More...

	~NurbsBase ()
	Empty Destructor (Virtual to make this whole thing polymorphic) More...

Protected Member Functions
double	BaseFunc (const int &dim, const int &knot, const int &degree, const double &u) const
	This is a serial implementation of the recursive nurbs evaluation. More...

double	BaseFunc (const int &dim, const int &knot, const int &degree, const double &u, double *&cachePointer) const
	This is a serial implementation of the recursive nurbs evaluation. More...

Protected Attributes
int	baseOps_

int	degree_
	Degree of the b-splines. More...

int	knotsPerDim_
	Number of knots in each dimension. More...

std::vector< std::vector < double > >	knotVector_
	The vector of knot vectors (One for each dimension) More...

int	numCtrlPoints_
	The number of control points per dimension. More...

Detailed Description

Base class for NURBS classes.

The NURBS Base function is implemented here

Author: jordt

Definition at line 29 of file NurbsBase.hh.

Constructor & Destructor Documentation

NurbsBase::NurbsBase	(	int	knotsPerDim = `4`,
		int	degree = `2`,
		int	dimension = `1`
	)

Standard Constructor.

Parameters

knotsPerDim	The number of knots in the knot vector (without the dublications)
degree	The degree of the b-splines
dimension	The dimension of the parameter space! (not the control point space)

Definition at line 16 of file NurbsBase.cpp.

BIAS::NurbsBase::~NurbsBase ( )

inline

Empty Destructor (Virtual to make this whole thing polymorphic)

Definition at line 40 of file NurbsBase.hh.

Member Function Documentation

double BIAS::NurbsBase::BaseFunc	(	const int &	dim,
		const int &	knot,
		const int &	degree,
		const double &	u
	)		const

inlineprotected

This is a serial implementation of the recursive nurbs evaluation.

Recursive function values are stored in the evaluation cache (evalCache_)

Parameters

dim	The dimension (determines which knot vector is used)
knot	The index of the knot in the knot vector
degree	The current degree the function is evaluated in
u	The parmeter for which the base function is evaluated

Definition at line 108 of file NurbsBase.hh.

References knotVector_.

Referenced by BIAS::Nurbs1D< ControlPointsT >::EvalBaseFunc(), BIAS::Nurbs2D< ControlPointsT >::EvalBaseFunc(), and BIAS::Nurbs3D< ControlPointsT >::EvalBaseFunc().

double BIAS::NurbsBase::BaseFunc	(	const int &	dim,
		const int &	knot,
		const int &	degree,
		const double &	u,
		double *&	cachePointer
	)		const

inlineprotected

This is a serial implementation of the recursive nurbs evaluation.

Recursive function values are stored in the evaluation cache (evalCache_) In this function, the cache pointer has to be provided in order to save the memory allocation time.

Parameters

dim	The dimension (determines which knot vector is used)
knot	The index of the knot in the knot vector
degree	The current degree the function is evaluated in
u	The parmeter for which the base function is evaluated
cachePointer	The pointer to a cache, this function is allowed to use (already allocated). The size should be degree+1

Definition at line 152 of file NurbsBase.hh.

References knotVector_.

int NurbsBase::GetDegree ( ) const

Returns the degree of the NURBS.

Definition at line 61 of file NurbsBase.cpp.

double NurbsBase::GetKnot	(	int	dim,
		int	index
	)		const

Returns the position of a knot with a given index of a given dimension.

Definition at line 69 of file NurbsBase.cpp.

int NurbsBase::GetNumCtrlPts ( ) const

Returns the number of control points per dimension.

Definition at line 65 of file NurbsBase.cpp.

int NurbsBase::GetNumKnots ( ) const

Returns the number of knots of the NURBS.

Definition at line 57 of file NurbsBase.cpp.

void NurbsBase::SetKnot	(	int	dim,
		int	index,
		double	value
	)

Set the position of a knot with a given index and of a given dimension.

Definition at line 75 of file NurbsBase.cpp.

Member Data Documentation

int BIAS::NurbsBase::baseOps_

protected

Definition at line 78 of file NurbsBase.hh.

int BIAS::NurbsBase::degree_

protected

Degree of the b-splines.

Definition at line 68 of file NurbsBase.hh.

Referenced by BIAS::Nurbs1D< ControlPointsT >::EvalBaseFunc(), BIAS::Nurbs2D< ControlPointsT >::EvalBaseFunc(), BIAS::Nurbs3D< ControlPointsT >::EvalBaseFunc(), BIAS::Nurbs1D< ControlPointsT >::GetRelevantBaseCtrlPoints(), BIAS::Nurbs2D< ControlPointsT >::GetRelevantBaseCtrlPoints(), and BIAS::Nurbs3D< ControlPointsT >::GetRelevantBaseCtrlPoints().

int BIAS::NurbsBase::knotsPerDim_

protected

Number of knots in each dimension.

Definition at line 65 of file NurbsBase.hh.

std::vector<std::vector<double> > BIAS::NurbsBase::knotVector_

protected

The vector of knot vectors (One for each dimension)

Definition at line 62 of file NurbsBase.hh.

Referenced by BaseFunc(), BIAS::Nurbs1D< ControlPointsT >::GetRelevantBaseCtrlPoints(), BIAS::Nurbs2D< ControlPointsT >::GetRelevantBaseCtrlPoints(), and BIAS::Nurbs3D< ControlPointsT >::GetRelevantBaseCtrlPoints().

int BIAS::NurbsBase::numCtrlPoints_

protected

The number of control points per dimension.

Definition at line 71 of file NurbsBase.hh.

Referenced by BIAS::Nurbs1D< ControlPointsT >::GetCtrlPoint(), BIAS::Nurbs2D< ControlPointsT >::GetCtrlPoint(), BIAS::Nurbs3D< ControlPointsT >::GetCtrlPoint(), BIAS::Nurbs1D< ControlPointsT >::GetRelevantBaseCtrlPoints(), BIAS::Nurbs2D< ControlPointsT >::GetRelevantBaseCtrlPoints(), BIAS::Nurbs3D< ControlPointsT >::GetRelevantBaseCtrlPoints(), BIAS::Nurbs1D< ControlPointsT >::Nurbs1D(), BIAS::Nurbs2D< ControlPointsT >::Nurbs2D(), BIAS::Nurbs3D< ControlPointsT >::Nurbs3D(), BIAS::Nurbs1D< ControlPointsT >::SetCtrlPoint(), BIAS::Nurbs2D< ControlPointsT >::SetCtrlPoint(), and BIAS::Nurbs3D< ControlPointsT >::SetCtrlPoint().

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

MathAlgo/Nurbs/NurbsBase.hh
MathAlgo/Nurbs/NurbsBase.cpp

Public Member Functions

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation