Linear

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

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Starting with Flex 4.0, Adobe recommends that you use the spark.effects.easing.Linear class as an alternative to this class.

The Spark effects provided as of Flex 4 use classes which implement the IEaser interface instead of the easing functions in classes like Linear for the earlier Flex 3 effects. To achieve the same functionality of the old Linear class, create a new instance of spark.effects.easing.Linear or call spark.effects.easing.Linear.getInstance() to get a singleton instance.

The Linear class defines easing functions to implement linear motion with Flex effect classes. For more information, see http://www.robertpenner.com/profmx.

More examples

Using MX easing functions

Public Properties

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

Public Methods

	Method		Defined By
		easeIn(t:Number, b:Number, c:Number, d:Number):Number [static] The easeIn() method starts motion from zero velocity, and then accelerates motion as it executes.	Linear
		easeInOut(t:Number, b:Number, c:Number, d:Number):Number [static] The easeInOut() method combines the motion of the easeIn() and easeOut() methods to start the motion from zero velocity, accelerate motion, then decelerate back to zero velocity.	Linear
		easeNone(t:Number, b:Number, c:Number, d:Number):Number [static] The easeNone() method defines a constant motion, with no acceleration.	Linear
		easeOut(t:Number, b:Number, c:Number, d:Number):Number [static] The easeOut() method starts motion fast, and then decelerates motion to a zero velocity as it executes.	Linear
		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):Number

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The easeIn() method starts motion from zero velocity, 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.

Returns

Number — Number corresponding to the position of the component.

easeInOut

()

method

public static function easeInOut(t:Number, b:Number, c:Number, d:Number):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 from zero velocity, accelerate motion, then decelerate back to zero velocity.

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.

Returns

Number — Number corresponding to the position of the component.

easeNone

()

method

public static function easeNone(t:Number, b:Number, c:Number, d:Number):Number

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The easeNone() method defines a constant motion, with no acceleration.

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.

Returns

Number — Number corresponding to the position of the component.

easeOut

()

method

public static function easeOut(t:Number, b:Number, c:Number, d:Number):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 to a zero velocity 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.

Returns

Number — Number corresponding to the position of the component.

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Linear - AS3 Flex

Classes x

easeIn

easeInOut

easeNone

easeOut