kjb::Nurbs_curve Class Reference

#include <m2_spline.h>

Inheritance diagram for kjb::Nurbs_curve:

Public Member Functions
	Nurbs_curve ()
	Nurbs_curve (uint num_knots, const float *knots, uint degree, const std::vector< Vector > &ctl_points)
	Nurbs_curve (const Nurbs_curve &src)
virtual	~Nurbs_curve ()
void	insert_at (int index, const Vector &control_point)
virtual Nurbs_curve &	operator= (const Nurbs_curve &src)
virtual Nurbs_curve *	clone () const
	Processes an Option from program command-line arguments. More...
kjb::Vector	evaluate (double u) const
kjb::Vector	gradient (double u) const
bool	has_zero_length () const
Public Member Functions inherited from kjb::Cloneable
virtual	~Cloneable ()
	Deletes this Cloneable. More...

Protected Attributes
uint	_order
uint	_num_knots
float *	_knots
std::vector< Vector >	_ctl_points

Detailed Description

Non-rational B-spline class.

See Also

Gl_nurbs_curve

Author

Kyle Simek

Constructor & Destructor Documentation

kjb::Nurbs_curve::Nurbs_curve

(

)

kjb::Nurbs_curve::Nurbs_curve	(	uint	num_knots,
		const float *	knots,
		uint	degree,
		const std::vector< Vector > &	ctl_points
	)

kjb::Nurbs_curve::Nurbs_curve

(

const Nurbs_curve &

src

)

kjb::Nurbs_curve::~Nurbs_curve ( )

virtual

Member Function Documentation

Nurbs_curve * kjb::Nurbs_curve::clone ( ) const

virtual

Processes an Option from program command-line arguments.

Implements kjb::Cloneable.

Vector kjb::Nurbs_curve::evaluate ( double  u ) const

virtual

Evaluate the curve at some point along its length.

Parameters

u	The position along the curve the evaluate. Valid values are in [0.1].

TODO: test non-uniform weights case

Implements kjb::Spline_curve.

Vector kjb::Nurbs_curve::gradient ( double  u ) const

virtual

Evaluate the curve at some point along its length.

Parameters

u	The position along the curve the evaluate. Valid values are in [0.1].

Implements kjb::Spline_curve.

bool kjb::Nurbs_curve::has_zero_length

(

)

const

Returns true if the curve has zero length, i.e. all control points are identical. Utility method, used in gradient_*() method of Nurbs_surface

void kjb::Nurbs_curve::insert_at	(	int	index,
		const Vector &	control_point
	)

Nurbs_curve & kjb::Nurbs_curve::operator= ( const Nurbs_curve &  src )

virtual

Member Data Documentation

std::vector<Vector> kjb::Nurbs_curve::_ctl_points

protected

float* kjb::Nurbs_curve::_knots

protected

uint kjb::Nurbs_curve::_num_knots

protected

uint kjb::Nurbs_curve::_order

protected

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

• /work/kobus/src/lib/m2_cpp/m2_spline.h
• /work/kobus/src/lib/m2_cpp/m2_spline.cpp