Adobe® Flex® 4 Language Reference
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spark.effects.interpolation 
MultiValueInterpolator 
Packagespark.effects.interpolation
Classpublic class MultiValueInterpolator
InheritanceMultiValueInterpolator Inheritance Object
Implements IInterpolator

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

The MultiValueInterpolator class interpolates each element of Arrays or Vectors of start and end elements separately, using another interpolator to do the interpolation for each element. By default, the interpolation for each element uses the NumberInterpolator class, but you can construct a MultiValueInterpolator instance with a different interpolator.



Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
  elementInterpolator : IInterpolator
The interpolator for each element of the input Array or Vector.
MultiValueInterpolator
 Inheritedprototype : Object
[static] A reference to the prototype object of a class or function object.
Object
Public Methods
 MethodDefined By
  
MultiValueInterpolator(elementInterpolator:IInterpolator = null)
Constructor.
MultiValueInterpolator
  
decrement(baseValue:Object, decrementValue:Object):Object
Given a base value and a value to subtract from it, return the result of that decrement operation.
MultiValueInterpolator
 Inherited
Indicates whether an object has a specified property defined.
Object
  
increment(baseValue:Object, incrementValue:Object):Object
Given a base value and a value to add to it, return the result of that operation.
MultiValueInterpolator
  
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.
MultiValueInterpolator
 Inherited
Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.
Object
 Inherited
Indicates whether the specified property exists and is enumerable.
Object
 Inherited
Sets the availability of a dynamic property for loop operations.
Object
 Inherited
Returns the string representation of this object, formatted according to locale-specific conventions.
Object
 Inherited
Returns the string representation of the specified object.
Object
 Inherited
Returns the primitive value of the specified object.
Object
Property Detail

elementInterpolator

property
elementInterpolator:IInterpolator

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

The interpolator for each element of the input Array or Vector. A value of null specifies to use the NumberInterpolator class.

The default value is NumberInterpolator.



Implementation
    public function get elementInterpolator():IInterpolator
    public function set elementInterpolator(value:IInterpolator):void
Constructor Detail

MultiValueInterpolator

()Constructor
public function MultiValueInterpolator(elementInterpolator:IInterpolator = null)

Language Version: ActionScript 3.0
Product Version: Flex 4
Runtime Versions: Flash Player 10, AIR 1.5

Constructor.

Parameters
elementInterpolator:IInterpolator (default = null) — The interpolator for each element of the Array. If no interpolator is specified, use the NumberInterpolator class.
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. Interpolation for MultiValueInterpolator consists of running a separate interpolation on each element of the startValue and endValue arrays or vectors, returning a new Array or Vector that holds those interpolated values. The returned object will be an Array if startValue and endValue are of type Array, otherwise the returned object will be of type Vector.

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.