org.jzy3d.maths
Class Coord2d

java.lang.Object
  org.jzy3d.maths.Coord2d

public class Coord2d
extends Object

A Coord2d stores a 2 dimensional coordinate for cartesian (x,y) or polar (a,r) mode, and provide operators allowing to add, substract, multiply and divises coordinate values, as well as computing the distance between two points, and converting polar and cartesian coordinates.

Author:

Martin Pernollet

Field Summary

static Coord2d	INVALID An invalid Coord2d has value NaN for each dimension.
static Coord2d	ORIGIN The origin is a Coord2d having value 0 for each dimension.
float	x
float	y

Constructor Summary

Coord2d()
Creates a 2d coordinate with the value 0 for each dimension.

Coord2d(double xi, double yi)
Creates a 2d coordinate.

Coord2d(float xi, float yi)
Creates a 2d coordinate.

Method Summary

Coord2d	add(Coord2d c2) Add a Coord2d to the current one and return the result in a new Coord2d.
Coord2d	add(float value) Add a value to all components of the current Coord and return the result in a new Coord2d.
Coord2d	add(float x, float y)
void	addSelf(Coord2d c2)
void	addSelf(float x, float y)
void	addSelfX(float x)
void	addSelfY(float y)
Coord2d	cartesian() Converts the current Coord3d into cartesian coordinates and return the result in a new Coord3d.
Coord2d	clone() Return a duplicate of this 3d coordinate.
double	distance(Coord2d c) Compute the distance between two coordinates.
double	distanceSq(Coord2d c)
Coord2d	div(Coord2d c2) Divise a Coord2d to the current one and return the result in a new Coord2d.
Coord2d	div(float value) Divise all components of the current Coord by the same value and return the result in a new Coord3d.
Coord2d	div(float x, float y)
void	divSelf(float value)
Coord2d	fullPolar() Return a real polar value, with an angle in the range [0;2*PI] http://fr.wikipedia.org/wiki/Coordonn%C3%A9es_polaires
float	getX()
float	getY()
Coord2d	interpolation(Coord2d c, float ratio) Returns an interpolated point between the current and given point, according to an input ratio in [0;1] that indicates how near to the current point the new point will stand.
Coord2d	mul(Coord2d c2) Multiply a Coord2d to the current one and return the result in a new Coord2d.
Coord2d	mul(float value) Multiply all components of the current Coord and return the result in a new Coord3d.
Coord2d	mul(float x, float y)
Coord2d	polar() Converts the current Coord2d into polar coordinates and return the result in a new Coord2d.
void	set(Coord2d c)
void	set(float x, float y)
Coord2d	sub(Coord2d c2) Substract a Coord2d to the current one and return the result in a new Coord2d.
Coord2d	sub(float value) Substract a value to all components of the current Coord and return the result in a new Coord2d.
Coord2d	sub(float x, float y)
float[]	toArray() Return an array representation of this coordinate.
String	toString() Return a string representation of this coordinate.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ORIGIN

public static final Coord2d ORIGIN

The origin is a Coord2d having value 0 for each dimension.

INVALID

public static final Coord2d INVALID

An invalid Coord2d has value NaN for each dimension.

x

public float x

y

public float y

Constructor Detail

Coord2d

public Coord2d()

Creates a 2d coordinate with the value 0 for each dimension.

Coord2d

public Coord2d(float xi,
               float yi)

Creates a 2d coordinate. When using polar mode, x represents angle, and y represents distance.

Coord2d

public Coord2d(double xi,
               double yi)

Creates a 2d coordinate. When using polar mode, x represents angle, and y represents distance.

Method Detail

clone

public Coord2d clone()

Return a duplicate of this 3d coordinate.

Overrides:

clone in class Object

set

public void set(Coord2d c)

set

public void set(float x,
                float y)

add

public Coord2d add(Coord2d c2)

Add a Coord2d to the current one and return the result in a new Coord2d.

Parameters:

c2 -

Returns:

the result Coord2d

addSelf

public void addSelf(Coord2d c2)

addSelf

public void addSelf(float x,
                    float y)

addSelfX

public void addSelfX(float x)

addSelfY

public void addSelfY(float y)

add

public Coord2d add(float value)

Add a value to all components of the current Coord and return the result in a new Coord2d.

Parameters:

value -

Returns:

the result Coord2d

add

public Coord2d add(float x,
                   float y)

sub

public Coord2d sub(Coord2d c2)

Substract a Coord2d to the current one and return the result in a new Coord2d.

Parameters:

c2 -

Returns:

the result Coord2d

sub

public Coord2d sub(float value)

Substract a value to all components of the current Coord and return the result in a new Coord2d.

Parameters:

value -

Returns:

the result Coord2d

sub

public Coord2d sub(float x,
                   float y)

mul

public Coord2d mul(Coord2d c2)

Multiply a Coord2d to the current one and return the result in a new Coord2d.

Parameters:

c2 -

Returns:

the result Coord2d

mul

public Coord2d mul(float x,
                   float y)

mul

public Coord2d mul(float value)

Multiply all components of the current Coord and return the result in a new Coord3d.

Parameters:

value -

Returns:

the result Coord3d

div

public Coord2d div(Coord2d c2)

Divise a Coord2d to the current one and return the result in a new Coord2d.

Parameters:

c2 -

Returns:

the result Coord2d

div

public Coord2d div(float value)

Divise all components of the current Coord by the same value and return the result in a new Coord3d.

Parameters:

value -

Returns:

the result Coord3d

div

public Coord2d div(float x,
                   float y)

divSelf

public void divSelf(float value)

cartesian

public Coord2d cartesian()

Converts the current Coord3d into cartesian coordinates and return the result in a new Coord3d.

Returns:

the result Coord3d

polar

public Coord2d polar()

Converts the current Coord2d into polar coordinates and return the result in a new Coord2d.

fullPolar

public Coord2d fullPolar()

Return a real polar value, with an angle in the range [0;2*PI] http://fr.wikipedia.org/wiki/Coordonn%C3%A9es_polaires

distance

public double distance(Coord2d c)

Compute the distance between two coordinates.

distanceSq

public double distanceSq(Coord2d c)

interpolation

public Coord2d interpolation(Coord2d c,
                             float ratio)

Returns an interpolated point between the current and given point, according to an input ratio in [0;1] that indicates how near to the current point the new point will stand. A value of 1 will return a copy of the current point.

toString

public String toString()

Return a string representation of this coordinate.

Overrides:

toString in class Object

toArray

public float[] toArray()

Return an array representation of this coordinate.

getX

public float getX()

getY

public float getY()