gov.nasa.worldwind.geom

Class Range

java.lang.Object

gov.nasa.worldwind.geom.Range

public class Range
extends java.lang.Object

Continuous interval in a one-dimensional coordinate system expressed as a lower bound an an upper bound, inclusive.

Field Summary

Fields

Modifier and Type	Field and Description
int	lower The range's lower bound, inclusive.
int	upper The range's upper bound, inclusive.

Constructor Summary

Constructors

Constructor and Description
Range() Constructs an empty range with lower and upper both zero.
Range(int lower, int upper) Constructs a range with a specified lower bound and upper bound.
Range(Range range) Constructs a range with the lower bound and upper bound of a specified range.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object o)
int	hashCode()
boolean	isEmpty() Indicates whether or not this range is empty.
int	length() Returns the length of the interval between this range's lower bound and upper bound, or 0 if this range is empty.
Range	set(int lower, int upper) Sets this range to the specified lower bound and upper bound.
Range	set(Range range) Sets this range to the lower bound and upper bound of a specified range.
Range	setEmpty() Sets this range to an empty range.

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

lower

public int lower

The range's lower bound, inclusive.

upper

public int upper

The range's upper bound, inclusive.

Constructor Detail

Range

public Range()

Constructs an empty range with lower and upper both zero.

Range

public Range(int lower,
             int upper)

Constructs a range with a specified lower bound and upper bound.

Parameters:

lower - the lower bound, inclusive

upper - the upper bound, inclusive

Range

public Range(Range range)

Constructs a range with the lower bound and upper bound of a specified range.

Parameters:

range - the range specifying the values

Throws:

java.lang.IllegalArgumentException - If the range is null

Method Detail

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

length

public int length()

Returns the length of the interval between this range's lower bound and upper bound, or 0 if this range is empty.

Returns:

the interval length associated with this range

set

public Range set(int lower,
                 int upper)

Sets this range to the specified lower bound and upper bound.

Parameters:

lower - the new lower bound, inclusive

upper - the new upper bound, inclusive

Returns:

this range set to the specified values

set

public Range set(Range range)

Sets this range to the lower bound and upper bound of a specified range.

Parameters:

range - the range specifying the new values

Returns:

this range with its lower bound and upper bound set to that of the specified range

Throws:

java.lang.IllegalArgumentException - If the range is null

setEmpty

public Range setEmpty()

Sets this range to an empty range.

Returns:

this range with its lower bound and upper bound both set to zero

isEmpty

public boolean isEmpty()

Indicates whether or not this range is empty. An range is empty when its lower bound is greater than or equal to its upper bound.

Returns:

true if this range is empty, false otherwise