The IInterpolator interface is implemented by classes that calculate
values for the Animation class. The Animation class
can handle parametric interpolation between Number values and
arrays of Number values, but it cannot handle different types
of interpolation, or interpolation between different types of
values. Implementors of this interface can provide arbitrary
interpolation capabilities so that Animations can be created between
arbitrary values.
Given an elapsed fraction of an animation, between 0.0 and 1.0,
and start and end values to interpolate, return the interpolated value.
IInterpolator
Method Detail
decrement
()
method
public function decrement(baseValue:Object, decrementValue:Object):Object
Language Version :
ActionScript 3.0
Product Version :
Flex 4
Runtime Versions :
Flash Player 10, AIR 1.5
Given a base value and a value to subtract from it,
return the result of that decrement operation. For example,
if the objects are simple Numbers, the result would be
Number(baseValue) - Number(incrementValue).
This function is called by the animation system when it
needs to dynamically calculate a value given some ending
value and a 'by' value that should be subtracted from it. Both of
the arguments are of type Object and cannot simply be added together.
Parameters
baseValue:Object — The start value of the interpolation.
decrementValue:Object — The change to apply to the baseValue.
Returns
Object — The interpolated value.
increment
()
method
public function increment(baseValue:Object, incrementValue:Object):Object
Language Version :
ActionScript 3.0
Product Version :
Flex 4
Runtime Versions :
Flash Player 10, AIR 1.5
Given a base value and a value to add to it,
return the result of that operation.
For example, if the objects are simple Numbers, the result is a
Number(baseValue) + Number(incrementValue).
This method is called by the animation system when it
needs to dynamically calculate a value given some starting
value and a 'by' value that should be added to it. Both of
the arguments are of type Object and cannot simply be added together.
Parameters
baseValue:Object — The start value of the interpolation.
incrementValue:Object — The change to apply to the baseValue.
Returns
Object — The interpolated value.
interpolate
()
method
public function interpolate(fraction:Number, startValue:Object, endValue:Object):Object
Language Version :
ActionScript 3.0
Product Version :
Flex 4
Runtime Versions :
Flash Player 10, AIR 1.5
Given an elapsed fraction of an animation, between 0.0 and 1.0,
and start and end values to interpolate, return the interpolated value.
Parameters
fraction:Number — The fraction elapsed of the
animation, between 0.0 and 1.0.
startValue:Object — The start value of the interpolation.
endValue:Object — The end value of the interpolation.
