Aim: Represents a circle that passes through a given point and that is thus uniquely defined by two other points. It is able to return for any given point its signed distance to itself. More...

#include <DGtal/shapes/fromPoints/CircleFrom2Points.h>

Public Types
typedef TPoint::Coordinate	Coordinate

typedef Coordinate	Distance

typedef TPoint	Point

typedef TPoint	Vector

Public Member Functions
	CircleFrom2Points (const Point &aPole)

	CircleFrom2Points (const Point &aPole, const Point &aFirstPoint, const Point &aSecondPoint)

void	init (const Point &aFirstPoint, const Point &aSecondPoint)

	CircleFrom2Points (const CircleFrom2Points &other)

CircleFrom2Points &	operator= (const CircleFrom2Points &other)

	~CircleFrom2Points ()

void	selfDisplay (std::ostream &out) const

bool	isValid () const

Distance	signedDistance (const Point &aP) const

void	getParameters (double &cx, double &cy, double &r) const

const Point &	pole () const

const Point &	p () const

const Point &	q () const

std::string	className () const

Private Attributes
Point	myPole

Point	myP

Point	myQ

Detailed Description

template<typename TPoint>
class DGtal::CircleFrom2Points< TPoint >

Aim: Represents a circle that passes through a given point and that is thus uniquely defined by two other points. It is able to return for any given point its signed distance to itself.

Template Parameters

TPoint a type of points.

Examples: geometry/tools/examplePreimage.cpp.

Definition at line 67 of file CircleFrom2Points.h.

Member Typedef Documentation

◆ Coordinate

template<typename TPoint >

typedef TPoint::Coordinate DGtal::CircleFrom2Points< TPoint >::Coordinate

Definition at line 73 of file CircleFrom2Points.h.

◆ Distance

template<typename TPoint >

typedef Coordinate DGtal::CircleFrom2Points< TPoint >::Distance

Definition at line 74 of file CircleFrom2Points.h.

◆ Point

template<typename TPoint >

typedef TPoint DGtal::CircleFrom2Points< TPoint >::Point

Definition at line 75 of file CircleFrom2Points.h.

◆ Vector

template<typename TPoint >

typedef TPoint DGtal::CircleFrom2Points< TPoint >::Vector

Definition at line 76 of file CircleFrom2Points.h.

Constructor & Destructor Documentation

◆ CircleFrom2Points() [1/3]

template<typename TPoint >

DGtal::CircleFrom2Points< TPoint >::CircleFrom2Points ( const Point & aPole )

Constructor.

Parameters

aPole a point

◆ CircleFrom2Points() [2/3]

template<typename TPoint >

DGtal::CircleFrom2Points< TPoint >::CircleFrom2Points	(	const Point &	aPole,
		const Point &	aFirstPoint,
		const Point &	aSecondPoint )

Constructor with initialization.

Parameters

aPole	a point
aFirstPoint	a point
aSecondPoint	a second point

◆ CircleFrom2Points() [3/3]

template<typename TPoint >

DGtal::CircleFrom2Points< TPoint >::CircleFrom2Points ( const CircleFrom2Points< TPoint > & other )

Copy constructor.

Parameters

other the object to clone.

◆ ~CircleFrom2Points()

template<typename TPoint >

DGtal::CircleFrom2Points< TPoint >::~CircleFrom2Points ( )

Destructor. Does nothing

Member Function Documentation

◆ className()

template<typename TPoint >

std::string DGtal::CircleFrom2Points< TPoint >::className ( ) const

Default drawing style object.

Returns: the dyn. alloc. default style for this object.; the style name used for drawing this object.

◆ getParameters()

template<typename TPoint >

void DGtal::CircleFrom2Points< TPoint >::getParameters	(	double &	cx,
		double &	cy,
		double &	r ) const

Computes the parameters of the circle

Parameters

cx	returned x-coordinate of the circle
cy	returned y-coordinate of the circle
r	returned radius of the circle

◆ init()

template<typename TPoint >

void DGtal::CircleFrom2Points< TPoint >::init	(	const Point &	aFirstPoint,
		const Point &	aSecondPoint )

Init.

Parameters

aFirstPoint	a point
aSecondPoint	a second point

◆ isValid()

template<typename TPoint >

bool DGtal::CircleFrom2Points< TPoint >::isValid ( ) const

Checks the validity/consistency of the object.

Returns: 'true' if the object is valid, 'false' otherwise.

◆ operator=()

template<typename TPoint >

CircleFrom2Points & DGtal::CircleFrom2Points< TPoint >::operator= ( const CircleFrom2Points< TPoint > & other )

Assignment.

Parameters

other the object to copy.

Returns: a reference on 'this'.

◆ p()

template<typename TPoint >

const Point & DGtal::CircleFrom2Points< TPoint >::p ( ) const

inline

Returns: the second point through which the circle passes.

Definition at line 163 of file CircleFrom2Points.h.

    {
      return myP;
    };

References DGtal::CircleFrom2Points< TPoint >::myP.

◆ pole()

template<typename TPoint >

const Point & DGtal::CircleFrom2Points< TPoint >::pole ( ) const

inline

Returns: the first (and not mutable) point through which the circle passes.

Definition at line 155 of file CircleFrom2Points.h.

    {
      return myPole;
    };

References DGtal::CircleFrom2Points< TPoint >::myPole.

◆ q()

template<typename TPoint >

const Point & DGtal::CircleFrom2Points< TPoint >::q ( ) const

inline

Returns: the third point through which the circle passes.

Definition at line 171 of file CircleFrom2Points.h.

    {
      return myQ;
    };

References DGtal::CircleFrom2Points< TPoint >::myQ.

◆ selfDisplay()

template<typename TPoint >

void DGtal::CircleFrom2Points< TPoint >::selfDisplay ( std::ostream & out ) const

Writes/Displays the object on an output stream.

Parameters

out	the output stream where the object is written.

◆ signedDistance()

template<typename TPoint >

Distance DGtal::CircleFrom2Points< TPoint >::signedDistance ( const Point & aP ) const

Computes the signed distance of aP to the circle

Parameters

aP	the point to be tested.

Returns: the signed distance.

Field Documentation

◆ myP

template<typename TPoint >

Point DGtal::CircleFrom2Points< TPoint >::myP

private

Second point through which the circle passes

Definition at line 200 of file CircleFrom2Points.h.

Referenced by DGtal::CircleFrom2Points< TPoint >::p().

◆ myPole

template<typename TPoint >

Point DGtal::CircleFrom2Points< TPoint >::myPole

private

First (and not mutable) point through which the circle passes

Definition at line 196 of file CircleFrom2Points.h.

Referenced by DGtal::CircleFrom2Points< TPoint >::pole().

◆ myQ

template<typename TPoint >

Point DGtal::CircleFrom2Points< TPoint >::myQ

private

Third point through which the circle passes

Definition at line 204 of file CircleFrom2Points.h.

Referenced by DGtal::CircleFrom2Points< TPoint >::q().

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

CircleFrom2Points.h

Public Types

Public Member Functions

Private Attributes

Detailed Description

Member Typedef Documentation

◆ Coordinate

◆ Distance

◆ Point

◆ Vector

Constructor & Destructor Documentation

◆ CircleFrom2Points() [1/3]

◆ CircleFrom2Points() [2/3]

◆ CircleFrom2Points() [3/3]

◆ ~CircleFrom2Points()

Member Function Documentation

◆ className()

◆ getParameters()

◆ init()

◆ isValid()

◆ operator=()

◆ p()

◆ pole()

◆ q()

◆ selfDisplay()

◆ signedDistance()

Field Documentation

◆ myP

◆ myPole

◆ myQ