mx.effects.easing

# Quartic - AS3 Flex

Package | mx.effects.easing
Class | public class Quartic
Inheritance | Quartic Object

Language Version: | ActionScript 3.0

Product Version: | Flex 3

Runtime Versions: | Flash Player 9, AIR 1.1

The Spark effects provided as of Flex 4 use classes which implement the IEaser interface instead of the easing functions in classes like Quartic for the earlier Flex 3 effects. To achieve the same functionality of Quartic, create a Power instance with an `exponent` of 4 and set the `easeInFraction` appropriately to get the desired result.

The Quartic class defines three easing functions to implement motion with Flex effect classes. The acceleration of motion for a Quartic easing equation is greater than for a Quadratic or Cubic easing equation. For more information, see http://www.robertpenner.com/profmx.

More examples

Using MX easing functions

Public Properties
Hide Inherited Public Properties
Show Inherited Public Properties

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

Public Methods
Hide Inherited Public Methods
Show Inherited Public Methods

| Method | Defined By
--- | --- | ---
|  | easeIn(t:Number, b:Number, c:Number, d:Number):Number [static] The easeIn() method starts motion from a zero velocity, and then accelerates motion as it executes. | Quartic
|  | 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 a zero velocity, accelerate motion, then decelerate to a zero velocity. | Quartic
|  | 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. | Quartic
|  | 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 a 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 a zero velocity, accelerate motion, then decelerate to a 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.

### 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.

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.

© 2015 Adobe Systems Incorporated. All rights reserved.
Mon Apr 10 2017, 12:28 PM -07:00