#include <AC>

Public Types
typedef PointT	Point

typedef Point::value_type	Scalar

Public Member Functions
	BSplineCurveT (unsigned int _degree=3)
	Constructor.

	BSplineCurveT (const BSplineCurveT &_curve)
	Copy Constructor.

BSplineCurveT &	operator= (const BSplineCurveT &)=default
	Use the default = operator.

	~BSplineCurveT ()
	Destructor.

std::vector< Scalar > &	get_knots ()
	get the knotvector of the bspline curve

void	set_knots (std::vector< Scalar > _knots)
	set the knotvector of the bspline curve

Knotvector *	get_knotvector_ref ()
	get a reference to the knotvector

void	set_knotvector_type (Knotvector::KnotvectorType _type)
	set type of knotvector

Scalar	get_knot (int _i)
	get knot i

Point &	get_control_point (int _i)
	get control point i

void	add_control_point (const Point &_cp)
	add a control point

void	insert_control_point (int _idx, const Point &_cp)
	insert a control point at given index

void	delete_control_point (int _idx)
	delete control point at given index

void	set_control_point (int _idx, const Point &_cp)
	reset a control point

void	set_control_polygon (std::vector< Point > &_control_polygon)
	set whole control polygon

void	reset_control_polygon ()
	Clears the control polygon.

void	print () const
	print information string

Point	curvePoint (Scalar _u)

Point	derivativeCurvePoint (Scalar _u, unsigned int _der)

std::vector< Point >	deBoorAlgorithm (double _u)

void	insertKnot (double _u)
	Inserts a new knot at parameter u.

unsigned int	n_control_points () const
	Returns the number of control points.

unsigned int	n_knots () const
	Returns the number of knots.

unsigned int	degree () const
	Returns the spline degree.

void	set_degree (unsigned int _degree)
	Sets the spline degree.

ACG::Vec2i	span (double _t)

ACG::Vec2i	interval (double _t)

void	autocompute_knotvector (bool _auto)

void	fixNumberOfControlPoints (bool _fix)

bool	projected ()
	projected

void	reverse ()
	Reverses the curve.

Scalar	basisFunction (int _i, int _n, Scalar _t)

Scalar	derivativeBasisFunction (int _i, int _n, Scalar _t, int _der)

Scalar	lower () const
	Returns the lower parameter.

Scalar	upper () const
	Returns the upper parameter.

void	request_controlpoint_selections ()

void	request_edge_selections ()

void	release_controlpoint_selections ()

void	release_edge_selections ()

bool	controlpoint_selections_available () const

bool	edge_selections_available () const

unsigned char &	controlpoint_selection (unsigned int _i)

const unsigned char &	controlpoint_selection (unsigned int _i) const

unsigned char &	edge_selection (unsigned int _i)

const unsigned char &	edge_selection (unsigned int _i) const

void	select_controlpoint (unsigned int _pIdx)

void	deselect_controlpoint (unsigned int _pIdx)

bool	controlpoint_selected (unsigned int _pIdx) const

void	select_edge (unsigned int _pIdx)

void	deselect_edge (unsigned int _pIdx)

bool	edge_selected (unsigned int _pIdx) const

Private Member Functions
template<class PropT >
void	request_prop (unsigned int &_ref_count, PropT &_prop)

template<class PropT >
void	release_prop (unsigned int &_ref_count, PropT &_prop)

Private Attributes
std::vector< Point >	control_polygon_

Knotvector	knotvector_

unsigned int	degree_

bool	autocompute_knotvector_

bool	fix_number_control_points_

std::vector< unsigned char >	cpselections_

std::vector< unsigned char >	eselections_

unsigned int	ref_count_cpselections_

unsigned int	ref_count_eselections_

Detailed Description

template<class PointT>
class ACG::BSplineCurveT< PointT >

/.../BSplineCurveT.hh>

Brief Description.

A more elaborate description follows.

Definition at line 82 of file BSplineCurveT.hh.

Member Typedef Documentation

◆ Point

template<class PointT >

typedef PointT ACG::BSplineCurveT< PointT >::Point

Definition at line 87 of file BSplineCurveT.hh.

◆ Scalar

template<class PointT >

typedef Point::value_type ACG::BSplineCurveT< PointT >::Scalar

Definition at line 88 of file BSplineCurveT.hh.

Constructor & Destructor Documentation

◆ BSplineCurveT() [1/2]

template<class PointT >

ACG::BSplineCurveT< PointT >::BSplineCurveT ( unsigned int _degree = 3 )

Constructor.

Definition at line 75 of file BSplineCurveT_impl.hh.

◆ BSplineCurveT() [2/2]

template<class PointT >

ACG::BSplineCurveT< PointT >::BSplineCurveT ( const BSplineCurveT< PointT > & _curve )

Copy Constructor.

Definition at line 88 of file BSplineCurveT_impl.hh.

◆ ~BSplineCurveT()

template<class PointT >

ACG::BSplineCurveT< PointT >::~BSplineCurveT ( )

inline

Destructor.

Definition at line 100 of file BSplineCurveT.hh.

Member Function Documentation

◆ add_control_point()

template<class PointT >

void ACG::BSplineCurveT< PointT >::add_control_point ( const Point & _cp )

add a control point

Definition at line 148 of file BSplineCurveT_impl.hh.

◆ autocompute_knotvector()

template<class PointT >

void ACG::BSplineCurveT< PointT >::autocompute_knotvector ( bool _auto )

inline

Definition at line 190 of file BSplineCurveT.hh.

◆ basisFunction()

template<class PointT >

BSplineCurveT< PointT >::Scalar ACG::BSplineCurveT< PointT >::basisFunction	(	int	_i,
		int	_n,
		Scalar	_t
	)

A Spline Basis Function

Parameters

_i	the i'th basis function
_n	the spline degree
_t	the parameter Returns N_i^p(_u)

Definition at line 334 of file BSplineCurveT_impl.hh.

◆ controlpoint_selected()

template<class PointT >

bool ACG::BSplineCurveT< PointT >::controlpoint_selected ( unsigned int _pIdx ) const

inline

Definition at line 272 of file BSplineCurveT.hh.

◆ controlpoint_selection() [1/2]

template<class PointT >

unsigned char & ACG::BSplineCurveT< PointT >::controlpoint_selection ( unsigned int _i )

inline

Definition at line 248 of file BSplineCurveT.hh.

◆ controlpoint_selection() [2/2]

template<class PointT >

const unsigned char & ACG::BSplineCurveT< PointT >::controlpoint_selection ( unsigned int _i ) const

inline

Definition at line 253 of file BSplineCurveT.hh.

◆ controlpoint_selections_available()

template<class PointT >

bool ACG::BSplineCurveT< PointT >::controlpoint_selections_available ( ) const

inline

Definition at line 243 of file BSplineCurveT.hh.

◆ curvePoint()

template<class PointT >

PointT ACG::BSplineCurveT< PointT >::curvePoint ( Scalar _u )

Evaluates a spline curve at parameter _u

Parameters

_u	the parameter

Returns: the curve point

Definition at line 279 of file BSplineCurveT_impl.hh.

◆ deBoorAlgorithm()

template<class PointT >

std::vector< PointT > ACG::BSplineCurveT< PointT >::deBoorAlgorithm ( double _u )

Evaluates the curve at parameter u using deBoor algorithm.

Parameters

_u	the parameter

Returns: triangular array of control points

Definition at line 400 of file BSplineCurveT_impl.hh.

◆ degree()

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::degree ( ) const

inline

Returns the spline degree.

Definition at line 173 of file BSplineCurveT.hh.

◆ delete_control_point()

template<class PointT >

void ACG::BSplineCurveT< PointT >::delete_control_point ( int _idx )

delete control point at given index

Definition at line 204 of file BSplineCurveT_impl.hh.

◆ derivativeBasisFunction()

template<class PointT >

BSplineCurveT< PointT >::Scalar ACG::BSplineCurveT< PointT >::derivativeBasisFunction	(	int	_i,
		int	_n,
		Scalar	_t,
		int	_der
	)

Derivative of a Spline Basis Function

Parameters

_i	the i'th basis function
_n	the spline degree
_t	the parameter
_der	the _der'th derivative

Definition at line 373 of file BSplineCurveT_impl.hh.

◆ derivativeCurvePoint()

template<class PointT >

PointT ACG::BSplineCurveT< PointT >::derivativeCurvePoint	(	Scalar	_u,
		unsigned int	_der
	)

Returns the _derm'th derivative of a spline curve

Parameters

_u	the parameter
_der	the _derm'th derivative

Returns: the derivative

Definition at line 309 of file BSplineCurveT_impl.hh.

◆ deselect_controlpoint()

template<class PointT >

void ACG::BSplineCurveT< PointT >::deselect_controlpoint ( unsigned int _pIdx )

inline

Definition at line 270 of file BSplineCurveT.hh.

◆ deselect_edge()

template<class PointT >

void ACG::BSplineCurveT< PointT >::deselect_edge ( unsigned int _pIdx )

inline

Definition at line 275 of file BSplineCurveT.hh.

◆ edge_selected()

template<class PointT >

bool ACG::BSplineCurveT< PointT >::edge_selected ( unsigned int _pIdx ) const

inline

Definition at line 277 of file BSplineCurveT.hh.

◆ edge_selection() [1/2]

template<class PointT >

unsigned char & ACG::BSplineCurveT< PointT >::edge_selection ( unsigned int _i )

inline

Definition at line 259 of file BSplineCurveT.hh.

◆ edge_selection() [2/2]

template<class PointT >

const unsigned char & ACG::BSplineCurveT< PointT >::edge_selection ( unsigned int _i ) const

inline

Definition at line 263 of file BSplineCurveT.hh.

◆ edge_selections_available()

template<class PointT >

bool ACG::BSplineCurveT< PointT >::edge_selections_available ( ) const

inline

Definition at line 244 of file BSplineCurveT.hh.

◆ fixNumberOfControlPoints()

template<class PointT >

void ACG::BSplineCurveT< PointT >::fixNumberOfControlPoints ( bool _fix )

inline

Definition at line 192 of file BSplineCurveT.hh.

◆ get_control_point()

template<class PointT >

Point & ACG::BSplineCurveT< PointT >::get_control_point ( int _i )

inline

get control point i

Definition at line 118 of file BSplineCurveT.hh.

◆ get_knot()

template<class PointT >

Scalar ACG::BSplineCurveT< PointT >::get_knot ( int _i )

inline

get knot i

Definition at line 115 of file BSplineCurveT.hh.

◆ get_knots()

template<class PointT >

std::vector< Scalar > & ACG::BSplineCurveT< PointT >::get_knots ( )

inline

get the knotvector of the bspline curve

Definition at line 103 of file BSplineCurveT.hh.

◆ get_knotvector_ref()

template<class PointT >

Knotvector * ACG::BSplineCurveT< PointT >::get_knotvector_ref ( )

inline

get a reference to the knotvector

Definition at line 109 of file BSplineCurveT.hh.

◆ insert_control_point()

template<class PointT >

void ACG::BSplineCurveT< PointT >::insert_control_point	(	int	_idx,
		const Point &	_cp
	)

insert a control point at given index

Definition at line 173 of file BSplineCurveT_impl.hh.

◆ insertKnot()

template<class PointT >

void ACG::BSplineCurveT< PointT >::insertKnot ( double _u )

Inserts a new knot at parameter u.

Definition at line 514 of file BSplineCurveT_impl.hh.

◆ interval()

template<class PointT >

ACG::Vec2i ACG::BSplineCurveT< PointT >::interval ( double _t )

returns the index of the knots u and u+1 such that t in [u, u+1)

Parameters

_t	the parameter

Definition at line 486 of file BSplineCurveT_impl.hh.

◆ lower()

template<class PointT >

BSplineCurveT< PointT >::Scalar ACG::BSplineCurveT< PointT >::lower ( ) const

Returns the lower parameter.

Definition at line 447 of file BSplineCurveT_impl.hh.

◆ n_control_points()

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::n_control_points ( ) const

inline

Returns the number of control points.

Definition at line 167 of file BSplineCurveT.hh.

◆ n_knots()

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::n_knots ( ) const

inline

Returns the number of knots.

Definition at line 170 of file BSplineCurveT.hh.

◆ print()

template<class PointT >

void ACG::BSplineCurveT< PointT >::print ( ) const

print information string

Definition at line 500 of file BSplineCurveT_impl.hh.

◆ projected()

template<class PointT >

bool ACG::BSplineCurveT< PointT >::projected ( )

inline

projected

Todo:: This is a hack actually. review

Definition at line 198 of file BSplineCurveT.hh.

◆ release_controlpoint_selections()

template<class PointT >

void ACG::BSplineCurveT< PointT >::release_controlpoint_selections ( )

inline

Definition at line 239 of file BSplineCurveT.hh.

◆ release_edge_selections()

template<class PointT >

void ACG::BSplineCurveT< PointT >::release_edge_selections ( )

inline

Definition at line 240 of file BSplineCurveT.hh.

◆ release_prop()

template<class PointT >

template<class PropT >

void ACG::BSplineCurveT< PointT >::release_prop	(	unsigned int &	_ref_count,
		PropT &	_prop
	)

private

Definition at line 133 of file BSplineCurveT_impl.hh.

◆ request_controlpoint_selections()

template<class PointT >

void ACG::BSplineCurveT< PointT >::request_controlpoint_selections ( )

inline

Definition at line 235 of file BSplineCurveT.hh.

◆ request_edge_selections()

template<class PointT >

void ACG::BSplineCurveT< PointT >::request_edge_selections ( )

inline

Definition at line 236 of file BSplineCurveT.hh.

◆ request_prop()

template<class PointT >

template<class PropT >

void ACG::BSplineCurveT< PointT >::request_prop	(	unsigned int &	_ref_count,
		PropT &	_prop
	)

private

Definition at line 116 of file BSplineCurveT_impl.hh.

◆ reset_control_polygon()

template<class PointT >

void ACG::BSplineCurveT< PointT >::reset_control_polygon ( )

Clears the control polygon.

Definition at line 265 of file BSplineCurveT_impl.hh.

◆ reverse()

template<class PointT >

void ACG::BSplineCurveT< PointT >::reverse ( )

Reverses the curve.

Definition at line 570 of file BSplineCurveT_impl.hh.

◆ select_controlpoint()

template<class PointT >

void ACG::BSplineCurveT< PointT >::select_controlpoint ( unsigned int _pIdx )

inline

Definition at line 269 of file BSplineCurveT.hh.

◆ select_edge()

template<class PointT >

void ACG::BSplineCurveT< PointT >::select_edge ( unsigned int _pIdx )

inline

Definition at line 274 of file BSplineCurveT.hh.

◆ set_control_point()

template<class PointT >

void ACG::BSplineCurveT< PointT >::set_control_point	(	int	_idx,
		const Point &	_cp
	)

reset a control point

Definition at line 233 of file BSplineCurveT_impl.hh.

◆ set_control_polygon()

template<class PointT >

void ACG::BSplineCurveT< PointT >::set_control_polygon ( std::vector< Point > & _control_polygon )

set whole control polygon

Definition at line 244 of file BSplineCurveT_impl.hh.

◆ set_degree()

template<class PointT >

void ACG::BSplineCurveT< PointT >::set_degree ( unsigned int _degree )

inline

Sets the spline degree.

Definition at line 176 of file BSplineCurveT.hh.

◆ set_knots()

template<class PointT >

void ACG::BSplineCurveT< PointT >::set_knots ( std::vector< Scalar > _knots )

set the knotvector of the bspline curve

Definition at line 557 of file BSplineCurveT_impl.hh.

◆ set_knotvector_type()

template<class PointT >

void ACG::BSplineCurveT< PointT >::set_knotvector_type ( Knotvector::KnotvectorType _type )

inline

set type of knotvector

Definition at line 112 of file BSplineCurveT.hh.

◆ span()

template<class PointT >

ACG::Vec2i ACG::BSplineCurveT< PointT >::span ( double _t )

returns the basis functions which are unequal to zero at parameter t

Parameters

_t	the parameter

Definition at line 467 of file BSplineCurveT_impl.hh.

◆ upper()

template<class PointT >

BSplineCurveT< PointT >::Scalar ACG::BSplineCurveT< PointT >::upper ( ) const

Returns the upper parameter.

Definition at line 457 of file BSplineCurveT_impl.hh.

Member Data Documentation

◆ autocompute_knotvector_

template<class PointT >

bool ACG::BSplineCurveT< PointT >::autocompute_knotvector_

private

Definition at line 296 of file BSplineCurveT.hh.

◆ control_polygon_

template<class PointT >

std::vector<Point> ACG::BSplineCurveT< PointT >::control_polygon_

private

Definition at line 290 of file BSplineCurveT.hh.

◆ cpselections_

template<class PointT >

std::vector<unsigned char> ACG::BSplineCurveT< PointT >::cpselections_

private

Definition at line 305 of file BSplineCurveT.hh.

◆ degree_

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::degree_

private

Definition at line 294 of file BSplineCurveT.hh.

◆ eselections_

template<class PointT >

std::vector<unsigned char> ACG::BSplineCurveT< PointT >::eselections_

private

Definition at line 308 of file BSplineCurveT.hh.

◆ fix_number_control_points_

template<class PointT >

bool ACG::BSplineCurveT< PointT >::fix_number_control_points_

private

Definition at line 298 of file BSplineCurveT.hh.

◆ knotvector_

template<class PointT >

Knotvector ACG::BSplineCurveT< PointT >::knotvector_

private

Definition at line 292 of file BSplineCurveT.hh.

◆ ref_count_cpselections_

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::ref_count_cpselections_

private

Definition at line 311 of file BSplineCurveT.hh.

◆ ref_count_eselections_

template<class PointT >

unsigned int ACG::BSplineCurveT< PointT >::ref_count_eselections_

private

Definition at line 312 of file BSplineCurveT.hh.

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

Type-BSpline/ObjectTypes/BSplineCurve/BSplineCurveT.hh
Type-BSpline/ObjectTypes/BSplineCurve/BSplineCurveT_impl.hh

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Point

◆ Scalar

Constructor & Destructor Documentation

◆ BSplineCurveT() [1/2]

◆ BSplineCurveT() [2/2]

◆ ~BSplineCurveT()

Member Function Documentation

◆ add_control_point()

◆ autocompute_knotvector()

◆ basisFunction()

◆ controlpoint_selected()

◆ controlpoint_selection() [1/2]

◆ controlpoint_selection() [2/2]

◆ controlpoint_selections_available()

◆ curvePoint()

◆ deBoorAlgorithm()

◆ degree()

◆ delete_control_point()

◆ derivativeBasisFunction()

◆ derivativeCurvePoint()

◆ deselect_controlpoint()

◆ deselect_edge()

◆ edge_selected()

◆ edge_selection() [1/2]

◆ edge_selection() [2/2]

◆ edge_selections_available()

◆ fixNumberOfControlPoints()

◆ get_control_point()

◆ get_knot()

◆ get_knots()

◆ get_knotvector_ref()

◆ insert_control_point()

◆ insertKnot()

◆ interval()

◆ lower()

◆ n_control_points()

◆ n_knots()

◆ print()

◆ projected()

◆ release_controlpoint_selections()

◆ release_edge_selections()

◆ release_prop()

◆ request_controlpoint_selections()

◆ request_edge_selections()

◆ request_prop()

◆ reset_control_polygon()

◆ reverse()

◆ select_controlpoint()

◆ select_edge()

◆ set_control_point()

◆ set_control_polygon()

◆ set_degree()

◆ set_knots()

◆ set_knotvector_type()

◆ span()

◆ upper()

Member Data Documentation

◆ autocompute_knotvector_

◆ control_polygon_

◆ cpselections_

◆ degree_

◆ eselections_

◆ fix_number_control_points_

◆ knotvector_

◆ ref_count_cpselections_

◆ ref_count_eselections_