claw::math::curve< C, Traits > Class Template Reference

Implementation of the Bézier curve. More...

#include <curve.hpp>

Classes
class	control_point
	The control_point class describes a control point of the curve, with the direction of the curve before and after the point. More...
class	section
	A section is a part of the curve between two control points. More...

Public Types
typedef C	coordinate_type
	The type of the coordinates of the curve.
typedef Traits	traits_type
	The traits provide an access to the properties of the coordinates.
typedef traits_type::value_type	value_type
	The type of the components of the coordinates.
typedef control_point_list::iterator	iterator
	The type of the iterator on the control points of the curve.
typedef control_point_list::const_iterator	const_iterator
	The type of the iterator on the control points of the curve.

Public Member Functions
void	push_back (const control_point &p)
	Add a point at the end of the curve.
void	push_front (const control_point &p)
	Add a point at the beginning of the curve.
void	insert (const iterator &pos, const control_point &p)
	Add a point before an other point of the curve.
section	get_section (const const_iterator &pos) const
	Get the section of the curve starting at a given control point.
std::vector< typename section::resolved_point >	get_point_at_x (value_type x, bool off_domain=false) const
	Get the points having the given x-coordinate on the curve.
iterator	begin ()
	Get an iterator on the first control point.
iterator	end ()
	Get an iterator past the last control point.
const_iterator	begin () const
	Get an iterator on the first control point.
const_iterator	end () const
	Get an iterator past the last control point.

Detailed Description

template<typename C, typename Traits = coordinate_traits<C>>
class claw::math::curve< C, Traits >

Implementation of the Bézier curve.

The curve is made of a sequence of points, each of which having a direction telling how the curve enters the point and how to leave.

Author

Julien Jorge

Definition at line 49 of file curve.hpp.

Member Function Documentation

template<typename C , typename Traits >

std::vector< typename claw::math::curve< C, Traits >::section::resolved_point > claw::math::curve< C, Traits >::get_point_at_x	(	value_type	x,
		bool	off_domain = false
	)		const

Get the points having the given x-coordinate on the curve.

Parameters

x	The coordinate for which we want the points.
off_domain	Tell the method to keep the points found at a date outside [0, 1].

Todo:

Remove the duplicates in the result.

Definition at line 607 of file curve.tpp.

References claw::math::curve< C, Traits >::begin(), claw::math::curve< C, Traits >::section::empty(), claw::math::curve< C, Traits >::end(), claw::math::curve< C, Traits >::section::get_point_at_x(), and claw::math::curve< C, Traits >::get_section().

template<typename C , typename Traits >

claw::math::curve< C, Traits >::section claw::math::curve< C, Traits >::get_section

(

const const_iterator &

pos

)

const

Get the section of the curve starting at a given control point.

Parameters

pos	An iterator of the control point at which the returned section begins.

Definition at line 584 of file curve.tpp.

References claw::math::curve< C, Traits >::end().

Referenced by claw::math::curve< C, Traits >::get_point_at_x().

template<typename C , typename Traits >

void claw::math::curve< C, Traits >::insert	(	const iterator &	pos,
		const control_point &	p
	)

Add a point before an other point of the curve.

Parameters

pos	An iterator on the point before which the control point is added.
p	The point to add.

Definition at line 571 of file curve.tpp.

template<typename C , typename Traits >

void claw::math::curve< C, Traits >::push_back

(

const control_point &

p

)

Add a point at the end of the curve.

Parameters

p	The point to add.

Definition at line 547 of file curve.tpp.

template<typename C , typename Traits >

void claw::math::curve< C, Traits >::push_front

(

const control_point &

p

)

Add a point at the beginning of the curve.

Parameters

p	The point to add.

Definition at line 558 of file curve.tpp.

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

• curve.hpp
• impl/curve.tpp