Summary: Nested Classes | Protected Ctors | Methods | Inherited Methods | [Expand All]

public abstract class

Ellipse2D

extends RectangularShape

java.lang.Object
↳	java.awt.geom.RectangularShape
	↳	java.awt.geom.Ellipse2D

Known Direct Subclasses

Ellipse2D.Double, Ellipse2D.Float

Class Overview

The Ellipse2D class describes an ellipse that is defined by a framing rectangle.

This class is only the abstract superclass for all objects which store a 2D ellipse. The actual storage representation of the coordinates is left to the subclass.

Summary

Nested Classes
class	Ellipse2D.Double	The `Double` class defines an ellipse specified in `double` precision.
class	Ellipse2D.Float	The `Float` class defines an ellipse specified in `float` precision.

Protected Constructors
	Ellipse2D() This is an abstract class that cannot be instantiated directly.

Public Methods
boolean	contains(double x, double y)
boolean	contains(double x, double y, double w, double h)
boolean	equals(Object obj) Determines whether or not the specified `Object` is equal to this `Ellipse2D`.
PathIterator	getPathIterator(AffineTransform at) Returns an iteration object that defines the boundary of this `Ellipse2D`.
int	hashCode() Returns the hashcode for this `Ellipse2D`.
boolean	intersects(double x, double y, double w, double h)

[Expand]

Inherited Methods

From class java.awt.geom.RectangularShape

Object	clone() Creates a new object of the same class and with the same contents as this object.
boolean	contains(Point2D p) Tests if a specified `Point2D` is inside the boundary of the `Shape`.
boolean	contains(Rectangle2D r) Tests if the interior of the `Shape` entirely contains the specified `Rectangle2D`.
Rectangle	getBounds() Returns an integer `Rectangle` that completely encloses the `Shape`.
double	getCenterX() Returns the X coordinate of the center of the framing rectangle of the `Shape` in `double` precision.
double	getCenterY() Returns the Y coordinate of the center of the framing rectangle of the `Shape` in `double` precision.
Rectangle2D	getFrame() Returns the framing `Rectangle2D` that defines the overall shape of this object.
abstract double	getHeight() Returns the height of the framing rectangle in `double` precision.
double	getMaxX() Returns the largest X coordinate of the framing rectangle of the `Shape` in `double` precision.
double	getMaxY() Returns the largest Y coordinate of the framing rectangle of the `Shape` in `double` precision.
double	getMinX() Returns the smallest X coordinate of the framing rectangle of the `Shape` in `double` precision.
double	getMinY() Returns the smallest Y coordinate of the framing rectangle of the `Shape` in `double` precision.
PathIterator	getPathIterator(AffineTransform at, double flatness) Returns an iterator object that iterates along the `Shape` object's boundary and provides access to a flattened view of the outline of the `Shape` object's geometry.
abstract double	getWidth() Returns the width of the framing rectangle in `double` precision.
abstract double	getX() Returns the X coordinate of the upper-left corner of the framing rectangle in `double` precision.
abstract double	getY() Returns the Y coordinate of the upper-left corner of the framing rectangle in `double` precision.
boolean	intersects(Rectangle2D r) Tests if the interior of the `Shape` intersects the interior of a specified `Rectangle2D`.
abstract boolean	isEmpty() Determines whether the `RectangularShape` is empty.
void	setFrame(Point2D loc, Dimension2D size) Sets the location and size of the framing rectangle of this `Shape` to the specified `Point2D` and `Dimension2D`, respectively.
void	setFrame(Rectangle2D r) Sets the framing rectangle of this `Shape` to be the specified `Rectangle2D`.
abstract void	setFrame(double x, double y, double w, double h) Sets the location and size of the framing rectangle of this `Shape` to the specified rectangular values.
void	setFrameFromCenter(double centerX, double centerY, double cornerX, double cornerY) Sets the framing rectangle of this `Shape` based on the specified center point coordinates and corner point coordinates.
void	setFrameFromCenter(Point2D center, Point2D corner) Sets the framing rectangle of this `Shape` based on a specified center `Point2D` and corner `Point2D`.
void	setFrameFromDiagonal(double x1, double y1, double x2, double y2) Sets the diagonal of the framing rectangle of this `Shape` based on the two specified coordinates.
void	setFrameFromDiagonal(Point2D p1, Point2D p2) Sets the diagonal of the framing rectangle of this `Shape` based on two specified `Point2D` objects.

From class java.lang.Object

Object	clone() Creates and returns a copy of this object.
boolean	equals(Object obj) Indicates whether some other object is "equal to" this one.
void	finalize() Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.
final Class<?>	getClass() Returns the runtime class of this `Object`.
int	hashCode() Returns a hash code value for the object.
final void	notify() Wakes up a single thread that is waiting on this object's monitor.
final void	notifyAll() Wakes up all threads that are waiting on this object's monitor.
String	toString() Returns a string representation of the object.
final void	wait() Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object.
final void	wait(long timeout, int nanos) Causes the current thread to wait until another thread invokes the `notify()` method or the `notifyAll()` method for this object, or some other thread interrupts the current thread, or a certain amount of real time has elapsed.
final void	wait(long timeout) Causes the current thread to wait until either another thread invokes the `notify()` method or the `notifyAll()` method for this object, or a specified amount of time has elapsed.

From interface java.awt.Shape

abstract boolean	contains(double x, double y) Tests if the specified coordinates are inside the boundary of the `Shape`.
abstract boolean	contains(Point2D p) Tests if a specified `Point2D` is inside the boundary of the `Shape`.
abstract boolean	contains(double x, double y, double w, double h) Tests if the interior of the `Shape` entirely contains the specified rectangular area.
abstract boolean	contains(Rectangle2D r) Tests if the interior of the `Shape` entirely contains the specified `Rectangle2D`.
abstract Rectangle	getBounds() Returns an integer `Rectangle` that completely encloses the `Shape`.
abstract Rectangle2D	getBounds2D() Returns a high precision and more accurate bounding box of the `Shape` than the `getBounds` method.
abstract PathIterator	getPathIterator(AffineTransform at) Returns an iterator object that iterates along the `Shape` boundary and provides access to the geometry of the `Shape` outline.
abstract PathIterator	getPathIterator(AffineTransform at, double flatness) Returns an iterator object that iterates along the `Shape` boundary and provides access to a flattened view of the `Shape` outline geometry.
abstract boolean	intersects(double x, double y, double w, double h) Tests if the interior of the `Shape` intersects the interior of a specified rectangular area.
abstract boolean	intersects(Rectangle2D r) Tests if the interior of the `Shape` intersects the interior of a specified `Rectangle2D`.

Protected Constructors

protected Ellipse2D ()

This is an abstract class that cannot be instantiated directly. Type-specific implementation subclasses are available for instantiation and provide a number of formats for storing the information necessary to satisfy the various accessor methods below.

Public Methods

public boolean contains (double x, double y)

public boolean contains (double x, double y, double w, double h)

public boolean equals (Object obj)

Determines whether or not the specified Object is equal to this Ellipse2D. The specified Object is equal to this Ellipse2D if it is an instance of Ellipse2D and if its location and size are the same as this Ellipse2D.

Parameters

obj	an `Object` to be compared with this `Ellipse2D`.

Returns

true if obj is an instance of Ellipse2D and has the same values; false otherwise.

public PathIterator getPathIterator (AffineTransform at)

Returns an iteration object that defines the boundary of this Ellipse2D. The iterator for this class is multi-threaded safe, which means that this Ellipse2D class guarantees that modifications to the geometry of this Ellipse2D object do not affect any iterations of that geometry that are already in process.

Parameters

at	an optional `AffineTransform` to be applied to the coordinates as they are returned in the iteration, or `null` if untransformed coordinates are desired

Returns

the PathIterator object that returns the geometry of the outline of this Ellipse2D, one segment at a time.

public int hashCode ()

Returns the hashcode for this Ellipse2D.

Returns

the hashcode for this Ellipse2D.

Interfaces

Classes

Exceptions

Ellipse2D

Class Overview

Summary

Protected Constructors

protected Ellipse2D ()

See Also

Public Methods

public boolean contains (double x, double y)

public boolean contains (double x, double y, double w, double h)

public boolean equals (Object obj)

Parameters

Returns

public PathIterator getPathIterator (AffineTransform at)

Parameters

Returns

public int hashCode ()

Returns

public boolean intersects (double x, double y, double w, double h)