| Language Version: | ActionScript 3.0 |
| Runtime Versions: | Flash Player 10, AIR 1.5 |
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.
public function decrement(baseValue:Object, decrementValue:Object):Object| Language Version: | ActionScript 3.0 |
| 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.
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| decrementValue:Object — The change to apply to the baseValue.
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Returns | Object — The interpolated value.
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public function increment(baseValue:Object, incrementValue:Object):Object| Language Version: | ActionScript 3.0 |
| 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.
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| incrementValue:Object — The change to apply to the baseValue.
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Returns | Object — The interpolated value.
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public function interpolate(fraction:Number, startValue:Object, endValue:Object):Object| Language Version: | ActionScript 3.0 |
| 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.
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| startValue:Object — The start value of the interpolation.
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| endValue:Object — The end value of the interpolation.
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Returns | Object — The interpolated value.
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