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IInterpolator

Package | spark.effects.interpolation
Interface | public interface IInterpolator
Implementors | HSBInterpolator, MultiValueInterpolator, NumberInterpolator, RGBInterpolator

Language Version : | ActionScript 3.0

Product Version : | Flex 4

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 Methods

| Method | Defined By
--- | --- | ---
|  | decrement(baseValue:Object, decrementValue:Object):Object Given a base value and a value to subtract from it, return the result of that decrement operation. | IInterpolator
|  | increment(baseValue:Object, incrementValue:Object):Object Given a base value and a value to add to it, return the result of that operation. | IInterpolator
|  | interpolate(fraction:Number, startValue:Object, endValue:Object):Object 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.

Returns

| `Object` — The interpolated value.

Wed Nov 15 2017, 09:50 AM +01:00