mx.effects.easing.Elastic - Adobe® Flex® 4 Language Reference (Flex 4)

Package	mx.effects.easing
Class	public class Elastic
Inheritance	Elastic Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The Elastc class defines three easing functions to implement motion with Flex effect classes, where the motion is defined by an exponentially decaying sine wave. For more information, see http://www.robertpenner.com/profmx.

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
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object

Public Methods

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	Method		Defined By
		easeIn(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number [static] The easeIn() method starts motion slowly, and then accelerates motion as it executes.	Elastic
		easeInOut(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number [static] The easeInOut() method combines the motion of the easeIn() and easeOut() methods to start the motion slowly, accelerate motion, then decelerate.	Elastic
		easeOut(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number [static] The easeOut() method starts motion fast, and then decelerates motion as it executes.	Elastic
		hasOwnProperty(name:String):Boolean Indicates whether an object has a specified property defined.	Object
		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

Method Detail

easeIn

()

method

public static function easeIn(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The easeIn() method starts motion slowly, and then accelerates motion as it executes.

Parameters

	`t:Number` — Specifies time.

	`b:Number` — Specifies the initial position of a component.

	`c:Number` — Specifies the total change in position of the component.

	`d:Number` — Specifies the duration of the effect, in milliseconds.

	`a:Number` (default = `0`) — Specifies the amplitude of the sine wave.

	`p:Number` (default = `0`) — Specifies the period of the sine wave.

Returns

Number — Number corresponding to the position of the component.

easeInOut

()

method

public static function easeInOut(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The easeInOut() method combines the motion of the easeIn() and easeOut() methods to start the motion slowly, accelerate motion, then decelerate.

Parameters

	`t:Number` — Specifies time.

	`b:Number` — Specifies the initial position of a component.

	`c:Number` — Specifies the total change in position of the component.

	`d:Number` — Specifies the duration of the effect, in milliseconds.

	`a:Number` (default = `0`) — Specifies the amplitude of the sine wave.

	`p:Number` (default = `0`) — Specifies the period of the sine wave.

Returns

Number — Number corresponding to the position of the component.

easeOut

()

method

public static function easeOut(t:Number, b:Number, c:Number, d:Number, a:Number = 0, p:Number = 0):Number

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The easeOut() method starts motion fast, and then decelerates motion as it executes.

Parameters

	`t:Number` — Specifies time.

	`b:Number` — Specifies the initial position of a component.

	`c:Number` — Specifies the total change in position of the component.

	`d:Number` — Specifies the duration of the effect, in milliseconds.

	`a:Number` (default = `0`) — Specifies the amplitude of the sine wave.

	`p:Number` (default = `0`) — Specifies the period of the sine wave.

Returns

Number — Number corresponding to the position of the component.