org.jfree.data.function

Class LineFunction2D

java.lang.Object

org.jfree.data.function.LineFunction2D

All Implemented Interfaces:

java.io.Serializable, Function2D

public class LineFunction2D
extends java.lang.Object
implements Function2D, java.io.Serializable

A function in the form y = a + bx.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LineFunction2D(double a, double b) Constructs a new line function.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj) Tests this function for equality with an arbitrary object.
double	getIntercept() Returns the 'a' coefficient that was specified in the constructor.
double	getSlope() Returns the 'b' coefficient that was specified in the constructor.
double	getValue(double x) Returns the function value.
int	hashCode() Returns a hash code for this instance.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

LineFunction2D

public LineFunction2D(double a,
                      double b)

Constructs a new line function.

Parameters:

a - the intercept.

b - the slope.

Method Detail

getIntercept

public double getIntercept()

Returns the 'a' coefficient that was specified in the constructor.

Returns:

The 'a' coefficient.

Since:

1.0.14

getSlope

public double getSlope()

Returns the 'b' coefficient that was specified in the constructor.

Returns:

The 'b' coefficient.

Since:

1.0.14

getValue

public double getValue(double x)

Returns the function value.

Specified by:

getValue in interface Function2D

Parameters:

x - the x-value.

Returns:

The value.

equals

public boolean equals(java.lang.Object obj)

Tests this function for equality with an arbitrary object.

Overrides:

equals in class java.lang.Object

Parameters:

obj - the object (null permitted).

Returns:

A boolean.

hashCode

public int hashCode()

Returns a hash code for this instance.

Overrides:

hashCode in class java.lang.Object

Returns:

A hash code.