physics
Class Circle

java.lang.Object
  physics.Circle

All Implemented Interfaces:

java.io.Serializable

public final class Circle
extends java.lang.Object
implements java.io.Serializable

Circle is an immutable abstract data type which models the mathematical notion of a circle in cartesian space.

See Also:

Serialized Form

Constructor Summary

Circle(double cx, double cy, double r)

Circle(java.awt.geom.Point2D center, double r)

Circle(Vect center, double r)

Method Summary

boolean	equals(Circle c)
boolean	equals(java.lang.Object o)
Vect	getCenter()
double	getRadius()
int	hashCode()
java.awt.geom.Ellipse2D	toEllipse2D()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Circle

public Circle(Vect center,
              double r)

Parameters:

center - the center point of the circle

r - the radius of the circle

Circle

public Circle(double cx,
              double cy,
              double r)

Parameters:

cx - the x coordinate of the center point of the circle

cy - the y coordinate of the center point of the circle

r - the radius of the circle

Circle

public Circle(java.awt.geom.Point2D center,
              double r)

Parameters:

center - the center point of the circle

r - the radius of the circle

Method Detail

getCenter

public Vect getCenter()

Returns:

the center point of this circle.

getRadius

public double getRadius()

Returns:

the radius of this circle.

toEllipse2D

public java.awt.geom.Ellipse2D toEllipse2D()

Returns:

a new Ellipse2D which is the same as this circle

equals

public boolean equals(Circle c)

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object