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`java.lang.Object`

`java.awt.geom.RectangularShape`

`java.awt.geom.Ellipse2D`

**Implemented Interfaces:**- Cloneable, Shape

**Known Direct Subclasses:**- Ellipse2D.Double, Ellipse2D.Float

`public abstract class `**Ellipse2D**

`extends RectangularShape`

Ellipse2D is the shape of an ellipse.

The ellipse is defined by it's bounding box (shown in red), and is defined by the implicit curve:

The ellipse is defined by it's bounding box (shown in red), and is defined by the implicit curve:

(x/a)^{2}+ (y/b)^{2}= 1

**Since:**- 1.2

## Nested Class Summary

`static class`

`Ellipse2D.Double`

- An
`Ellipse2D`

that stores its coordinates using`double`

primitives.

`static class`

`Ellipse2D.Float`

- An
`Ellipse2D`

that stores its coordinates using`float`

primitives.

## Constructor Summary

`Ellipse2D()`

- Ellipse2D is defined as abstract.

## Method Summary

`boolean`

`contains(double x, double y)`

- Determines if a point is contained within the ellipse.

`boolean`

`contains(double x, double y, double w, double h)`

- Determines if a rectangle is completely contained within the ellipse.

`PathIterator`

`getPathIterator(AffineTransform at)`

- Returns a PathIterator object corresponding to the ellipse.
Note: An ellipse cannot be represented exactly in PathIterator segments, the outline is thefore approximated with cubic Bezier segments.

`boolean`

`intersects(double x, double y, double w, double h)`

- Determines if a rectangle intersects any part of the ellipse.

### Methods inherited from class java.awt.geom.RectangularShape

`clone`

,`contains`

,`contains`

,`getBounds`

,`getCenterX`

,`getCenterY`

,`getFrame`

,`getHeight`

,`getMaxX`

,`getMaxY`

,`getMinX`

,`getMinY`

,`getPathIterator`

,`getWidth`

,`getX`

,`getY`

,`intersects`

,`isEmpty`

,`setFrame`

,`setFrame`

,`setFrame`

,`setFrameFromCenter`

,`setFrameFromCenter`

,`setFrameFromDiagonal`

,`setFrameFromDiagonal`

### Methods inherited from class java.lang.Object

`clone`

,`equals`

,`extends Object> getClass`

,`finalize`

,`hashCode`

,`notify`

,`notifyAll`

,`toString`

,`wait`

,`wait`

,`wait`

public boolean contains(double x, double y)

Determines if a point is contained within the ellipse.

Parameters:`x`

- - x coordinate of the point.`y`

- - y coordinate of the point.

Returns:- true if the point is within the ellipse, false otherwise.

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

Determines if a rectangle is completely contained within the ellipse.

Parameters:`x`

- - x coordinate of the upper-left corner of the rectangle`y`

- - y coordinate of the upper-left corner of the rectangle`w`

- - width of the rectangle`h`

- - height of the rectangle

Returns:- true if the rectangle is completely contained, false otherwise.

public PathIterator getPathIterator(AffineTransform at)

Returns a PathIterator object corresponding to the ellipse.Note: An ellipse cannot be represented exactly in PathIterator segments, the outline is thefore approximated with cubic Bezier segments.

Specified by:- getPathIterator in interface Shape

Parameters:`at`

- an optional transform.

Returns:- A path iterator.

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

Determines if a rectangle intersects any part of the ellipse.

Specified by:- intersects in interface Shape

Parameters:`x`

- - x coordinate of the upper-left corner of the rectangle`y`

- - y coordinate of the upper-left corner of the rectangle`w`

- - width of the rectangle`h`

- - height of the rectangle

Returns:- true if the rectangle intersects the ellipse, false otherwise.

Ellipse2D.java -- represents an ellipse in 2-D space
Copyright (C) 2000, 2002, 2004 Free Software Foundation
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