org.jdesktop.animation.timing.interpolation
Class LinearInterpolator

java.lang.Object
  extended by org.jdesktop.animation.timing.interpolation.LinearInterpolator
All Implemented Interfaces:
Interpolator

public final class LinearInterpolator
extends Object
implements Interpolator

This class implements the Interpolator interface by providing a simple interpolate function that simply returns the value that it was given. The net effect is that callers will end up calculating values linearly during intervals.

Because there is no variation to this class, it is a singleton and is referenced by using the getInstance() static method.


Method Summary
static LinearInterpolator getInstance()
          Returns the single DiscreteInterpolator object
 float interpolate(float fraction)
          This method always returns the value it was given, which will cause callers to calculate a linear interpolation between boundary values.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Method Detail

getInstance

public static LinearInterpolator getInstance()
Returns the single DiscreteInterpolator object


interpolate

public float interpolate(float fraction)
This method always returns the value it was given, which will cause callers to calculate a linear interpolation between boundary values.

Specified by:
interpolate in interface Interpolator
Parameters:
fraction - a value between 0 and 1, representing the elapsed fraction of a time interval (either an entire animation cycle or an interval between two KeyTimes, depending on where this Interpolator has been set)
Returns:
the same value passed in as fraction