NumberInterpolator

Package	spark.effects.interpolation
Class	public class NumberInterpolator
Inheritance	NumberInterpolator Object
Implements	IInterpolator

Language Version:

ActionScript 3.0

Product Version:

Flex 4

Runtime Versions:

Flash Player 10, AIR 1.5

The NumberInterpolator class provides interpolation between start and end values represented as Number instances.

Public Properties

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	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object

Public Methods

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	Method		Defined By
		NumberInterpolator() Constructor.	NumberInterpolator
		decrement(baseValue:Object, decrementValue:Object):Object Given a base value and a value to subtract from it, return the result of that decrement operation.	NumberInterpolator
		getInstance():NumberInterpolator [static] Returns the singleton of this class.	NumberInterpolator
		hasOwnProperty(name:String):Boolean 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.	NumberInterpolator
		interpolate(fraction:Number, startValue:Object, endValue:Object):Object Interpolation for NumberInterpolator consists of a simple parametric calculation between startValue and endValue, using fraction as the fraction of the elapsed time from start to end: return startValue + fraction (endValue - startValue);	NumberInterpolator
		isPrototypeOf(theClass:Object):Boolean Indicates whether an instance of the Object class is in the prototype chain of the object specified as the parameter.	Object
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		toLocaleString():String Returns the string representation of this object, formatted according to locale-specific conventions.	Object
		toString():String Returns the string representation of the specified object.	Object
		valueOf():Object Returns the primitive value of the specified object.	Object

Constructor Detail

()

Constructor

public function NumberInterpolator()

Language Version:

ActionScript 3.0

Product Version:

Flex 4

Runtime Versions:

Flash Player 10, AIR 1.5

Constructor.

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.

getInstance

()

method

public static function getInstance():NumberInterpolator

Language Version:

ActionScript 3.0

Product Version:

Flex 4

Runtime Versions:

Flash Player 10, AIR 1.5

Returns the singleton of this class. Since all NumberInterpolators have the same behavior, there is no need for more than one instance.

Returns

NumberInterpolator — The singleton of this class.

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

Interpolation for NumberInterpolator consists of a simple parametric calculation between startValue and endValue, using fraction as the fraction of the elapsed time from start to end:

return startValue + fraction (endValue - startValue);

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.

NumberInterpolator - AS3 Flex

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