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java.awt.geom

Class Rectangle2D.Double

Enclosing Class:
Rectangle2D
Implemented Interfaces:
Cloneable, Shape
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

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

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

Method Summary

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, createIntersection, createUnion, equals, getBounds2D, getPathIterator, getPathIterator, hashCode, intersect, intersects, intersectsLine, intersectsLine, outcode, outcode, setFrame, setRect, setRect, union

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

Field Details

height

public double height
The height of the rectangle.

width

public double width
The width of the rectangle.

x

public double x
The x coordinate of the lower left corner.

y

public double y
The y coordinate of the lower left corner.

Constructor Details

Double

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

Double

public 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 Details

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.
Overrides:
createIntersection in interface 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.
Overrides:
createUnion in interface Rectangle2D
Parameters:
r - the rectangle to be merged
Returns:
the union
Throws:
NullPointerException - if r is null

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 interface Rectangle2D
Returns:
a copy of this rectangle

getHeight

public double getHeight()
Return the height.
Overrides:
getHeight in interface RectangularShape
Returns:
the value of height

getWidth

public double getWidth()
Return the width.
Overrides:
getWidth in interface RectangularShape
Returns:
the value of width

getX

public double getX()
Return the X coordinate.
Overrides:
getX in interface RectangularShape
Returns:
the value of x

getY

public double getY()
Return the Y coordinate.
Overrides:
getY in interface RectangularShape
Returns:
the value of y

isEmpty

public boolean isEmpty()
Test if the rectangle is empty.
Overrides:
isEmpty in interface RectangularShape
Returns:
true if width or height is not positive

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.
Overrides:
outcode in interface 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

setRect

public void setRect(double x,
                    double y,
                    double w,
                    double h)
Set the contents of this rectangle to those specified.
Overrides:
setRect in interface 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 interface Rectangle2D
Parameters:
r - the rectangle to copy
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 interface Object
Returns:
a string representation of this rectangle
Rectangle2D.java -- generic rectangles in 2-D space Copyright (C) 2000, 2001, 2002, 2004 Free Software Foundation This file is part of GNU Classpath. GNU Classpath is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. GNU Classpath is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with GNU Classpath; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version.

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