java.awt.geom

Class Rectangle2D.Double

java.lang.Object

java.awt.geom.RectangularShape

java.awt.geom.Rectangle2D

java.awt.geom.Rectangle2D.Double

All Implemented Interfaces:

Shape, Cloneable

Enclosing class:

Rectangle2D

public static class Rectangle2D.Double
extends Rectangle2D

This class defines a rectangle in double precision.

Since:

1.2

Nested Class Summary

Nested classes/interfaces inherited from class java.awt.geom.Rectangle2D

Rectangle2D.Double, Rectangle2D.Float

Field Summary

Fields

Modifier and Type	Field and Description
double	height The height of the rectangle.
double	width The width of the rectangle.
double	x The x coordinate of the lower left corner.
double	y The y coordinate of the lower left corner.

Fields inherited from class java.awt.geom.Rectangle2D

OUT_BOTTOM, OUT_LEFT, OUT_RIGHT, OUT_TOP

Constructor Summary

Constructors

Constructor and Description
Rectangle2D.Double() Create a rectangle at (0,0) with width 0 and height 0.
Rectangle2D.Double(double x, double y, double w, double h) Create a rectangle with the given values.

Method Summary

Methods

Modifier and Type	Method and Description
Rectangle2D	createIntersection(Rectangle2D r) Return a new rectangle which is the intersection of this and the given one.
Rectangle2D	createUnion(Rectangle2D r) Return a new rectangle which is the union of this and the given one.
Rectangle2D	getBounds2D() Returns the bounds of this rectangle.
double	getHeight() Return the height.
double	getWidth() Return the width.
double	getX() Return the X coordinate.
double	getY() Return the Y coordinate.
boolean	isEmpty() Test if the rectangle is empty.
int	outcode(double x, double y) Determine where the point lies with respect to this rectangle.
void	setRect(double x, double y, double w, double h) Set the contents of this rectangle to those specified.
void	setRect(Rectangle2D r) Set the contents of this rectangle to those specified.
String	toString() Returns a string representation of this rectangle.

Methods inherited from class java.awt.geom.Rectangle2D

add, add, add, contains, contains, equals, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, setFrame, union

Methods inherited from class java.awt.geom.RectangularShape

clone, contains, contains, getBounds, getCenterX, getCenterY, getFrame, getMaxX, getMaxY, getMinX, getMinY, intersects, setFrame, setFrame, setFrameFromCenter, setFrameFromCenter, setFrameFromDiagonal, setFrameFromDiagonal

Methods inherited from class java.lang.Object

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

Field Detail

x

public double x

The x coordinate of the lower left corner.

y

public double y

The y coordinate of the lower left corner.

width

public double width

The width of the rectangle.

height

public double height

The height of the rectangle.

Constructor Detail

Rectangle2D.Double

public Rectangle2D.Double()

Create a rectangle at (0,0) with width 0 and height 0.

Rectangle2D.Double

public Rectangle2D.Double(double x,
                  double y,
                  double w,
                  double h)

Create a rectangle with the given values.

Parameters:

x - the x coordinate

y - the y coordinate

w - the width

h - the height

Method Detail

getX

public double getX()

Return the X coordinate.

Specified by:

getX in class RectangularShape

Returns:

the value of x

getY

public double getY()

Return the Y coordinate.

Specified by:

getY in class RectangularShape

Returns:

the value of y

getWidth

public double getWidth()

Return the width.

Specified by:

getWidth in class RectangularShape

Returns:

the value of width

getHeight

public double getHeight()

Return the height.

Specified by:

getHeight in class RectangularShape

Returns:

the value of height

isEmpty

public boolean isEmpty()

Test if the rectangle is empty.

Specified by:

isEmpty in class RectangularShape

Returns:

true if width or height is not positive

setRect

public void setRect(double x,
           double y,
           double w,
           double h)

Set the contents of this rectangle to those specified.

Specified by:

setRect in class Rectangle2D

Parameters:

x - the x coordinate

y - the y coordinate

w - the width

h - the height

setRect

public void setRect(Rectangle2D r)

Set the contents of this rectangle to those specified.

Overrides:

setRect in class Rectangle2D

Parameters:

r - the rectangle to copy

Throws:

NullPointerException - if r is null

outcode

public int outcode(double x,
          double y)

Determine where the point lies with respect to this rectangle. The result will be the binary OR of the appropriate bit masks.

Specified by:

outcode in class Rectangle2D

Parameters:

x - the x coordinate to check

y - the y coordinate to check

Returns:

the binary OR of the result

Since:

1.2

See Also:

Rectangle2D.OUT_LEFT, Rectangle2D.OUT_TOP, Rectangle2D.OUT_RIGHT, Rectangle2D.OUT_BOTTOM

getBounds2D

public Rectangle2D getBounds2D()

Returns the bounds of this rectangle. A pretty useless method, as this is already a rectangle.

Specified by:

getBounds2D in interface Shape

Overrides:

getBounds2D in class Rectangle2D

Returns:

a copy of this rectangle

See Also:

Shape.getBounds()

createIntersection

public Rectangle2D createIntersection(Rectangle2D r)

Return a new rectangle which is the intersection of this and the given one. The result will be empty if there is no intersection.

Specified by:

createIntersection in class Rectangle2D

Parameters:

r - the rectangle to be intersected

Returns:

the intersection

Throws:

NullPointerException - if r is null

createUnion

public Rectangle2D createUnion(Rectangle2D r)

Return a new rectangle which is the union of this and the given one.

Specified by:

createUnion in class Rectangle2D

Parameters:

r - the rectangle to be merged

Returns:

the union

Throws:

NullPointerException - if r is null

toString

public String toString()

Returns a string representation of this rectangle. This is in the form getClass().getName() + "[x=" + x + ",y=" + y + ",w=" + width + ",h=" + height + ']'.

Overrides:

toString in class Object

Returns:

a string representation of this rectangle

See Also:

Object.getClass(), Object.hashCode(), Class.getName(), Integer.toHexString(int)