org.jfree.data
Class Range

java.lang.Object
  org.jfree.data.Range

All Implemented Interfaces:

java.io.Serializable

Direct Known Subclasses:

DateRange

public class Range

extends java.lang.Object

implements java.io.Serializable

Represents the visible range for an axis.

Instances of this class are immutable.

Author:

David Gilbert

See Also:

Serialized Form

Constructor Summary

Range(double lower, double upper)
Created a new range.

Method Summary

static Range	combine(Range range1, Range range2) Creates a new range by combining two existing ranges.
boolean	contains(double value) Returns true if the range contains the specified value.
boolean	equals(java.lang.Object object) Tests this object for equality with another object.
double	getCentralValue() Returns the central value for the range.
double	getLength() Returns the length of the range.
double	getLowerBound() Returns the lower bound for the range.
double	getUpperBound() Returns the upper bound for the range.
java.lang.String	toString() Returns a string representation of this Range.

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Range

public Range(double lower,
             double upper)

Created a new range.

Parameters:

lower - the lower bound.

upper - the upper bound.

Method Detail

getLowerBound

public double getLowerBound()

Returns the lower bound for the range.

Returns:

the lower bound.

getUpperBound

public double getUpperBound()

Returns the upper bound for the range.

Returns:

the upper bound.

getLength

public double getLength()

Returns the length of the range.

Returns:

the length.

getCentralValue

public double getCentralValue()

Returns the central value for the range.

Returns:

the central value.

contains

public boolean contains(double value)

Returns true if the range contains the specified value.

Parameters:

value - the value to lookup.

Returns:

true if the range contains the specified value.

combine

public static Range combine(Range range1,
                            Range range2)

Creates a new range by combining two existing ranges.

Note that:

• either range can be null, in which case the other range is returned;
• if both ranges are null the return value is null.

Parameters:

range1 - the first range.

range2 - the second range.

Returns:

a new range.

equals

public boolean equals(java.lang.Object object)

Tests this object for equality with another object.

Parameters:

object - the object to test against.

Returns:

true or false.

toString

public java.lang.String toString()

Returns a string representation of this Range.

Returns:

a String "Range[lower,upper]" where lower=lower range and upper=upper range.