org.garret.perst
Class RectangleR2

java.lang.Object
  org.garret.perst.RectangleR2

All Implemented Interfaces:

java.lang.Cloneable, IValue

public class RectangleR2

extends java.lang.Object

implements IValue, java.lang.Cloneable

R2 rectangle class. This class is used in spatial index.

Constructor Summary

RectangleR2()
Default constructor for PERST

RectangleR2(double top, double left, double bottom, double right)
Construct rectangle with specified coordinates

RectangleR2(RectangleR2 r)
Create copy of the rectangle

Method Summary

double	area() Rectangle area
java.lang.Object	clone() Clone rectangle
boolean	contains(RectangleR2 r) Checks if this rectangle contains the specified rectangle
boolean	equals(java.lang.Object o) Check if two rectangles are equal
double	getBottom() Greatest Y coordinate of the rectangle
double	getLeft() Smallest X coordinate of the rectangle
double	getRight() Greatest X coordinate of the rectangle
double	getTop() Smallest Y coordinate of the rectangle
int	hashCode() Hash code consists of all rectangle coordinates
boolean	intersects(RectangleR2 r) Checks if this rectangle intersects with specified rectangle
void	join(RectangleR2 r) Join two rectangles.
static RectangleR2	join(RectangleR2 a, RectangleR2 b) Non destructive join of two rectangles.
static double	joinArea(RectangleR2 a, RectangleR2 b) Area of covered rectangle for two sepcified rectangles
java.lang.String	toString()

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

RectangleR2

public RectangleR2()

Default constructor for PERST

RectangleR2

public RectangleR2(double top,
                   double left,
                   double bottom,
                   double right)

Construct rectangle with specified coordinates

RectangleR2

public RectangleR2(RectangleR2 r)

Create copy of the rectangle

Method Detail

area

public final double area()

Rectangle area

clone

public java.lang.Object clone()

Clone rectangle

contains

public final boolean contains(RectangleR2 r)

Checks if this rectangle contains the specified rectangle

equals

public boolean equals(java.lang.Object o)

Check if two rectangles are equal

getBottom

public final double getBottom()

Greatest Y coordinate of the rectangle

getLeft

public final double getLeft()

Smallest X coordinate of the rectangle

getRight

public final double getRight()

Greatest X coordinate of the rectangle

getTop

public final double getTop()

Smallest Y coordinate of the rectangle

hashCode

public int hashCode()

Hash code consists of all rectangle coordinates

intersects

public final boolean intersects(RectangleR2 r)

Checks if this rectangle intersects with specified rectangle

join

public final void join(RectangleR2 r)

Join two rectangles. This rectangle is updates to contain cover of this and specified rectangle.

Parameters:

r - rectangle to be joined with this rectangle

join

public static RectangleR2 join(RectangleR2 a,
                               RectangleR2 b)

Non destructive join of two rectangles.

Parameters:

a - first joined rectangle

b - second joined rectangle

Returns:

rectangle containing cover of these two rectangles

joinArea

public static double joinArea(RectangleR2 a,
                              RectangleR2 b)

Area of covered rectangle for two sepcified rectangles

toString

public java.lang.String toString()