ActionScript® 3.0 Reference for the Adobe® Flash® Platform
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fl.transitions.easing 

None  - AS3 Flash

Packagefl.transitions.easing
Classpublic class None
InheritanceNone Inheritance Object

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0, AIR 1.0

The None class defines easing functions to implement nonaccelerated motion with ActionScript animations. Its methods all produce the same effect, a constant motion. The various names, easeIn, easeOut and so on are provided in the interest of polymorphism. The None class is identical to the fl.motion.easing.Linear class in functionality.

Related API Elements



Public Properties
 PropertyDefined By
 Inheritedconstructor : Object
A reference to the class object or constructor function for a given object instance.
Object
Public Methods
 MethodDefined By
  
[static] The easeIn() method defines a constant motion, with no acceleration.
None
  
[static] The easeInOut() method defines a constant motion, with no acceleration.
None
  
[static] The easeNone() method defines a constant motion, with no acceleration.
None
  
[static] The easeOut() method defines a constant motion, with no acceleration.
None
 Inherited
Indicates whether an object has a specified property defined.
Object
 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
Method Detail

easeIn

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

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0, AIR 1.0

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

Parameters

t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.

Returns
Number — The value of the interpolated property at the specified time.

Related API Elements


Example  ( How to use this example )

This example animates a rectangle using the None.easeIn easing function:
import fl.transitions.*;
import fl.transitions.easing.*;

stage.frameRate = 31;

var box:Sprite = new Sprite();
box.graphics.beginFill(Math.random() * 0xFFFFFF);
box.graphics.drawRect(0, 0, 100, 350);
box.graphics.endFill();
box.x = 50;
box.y = 10;
addChild(box);

var startValue:Number = box.x;
var finishValue:Number = 400;
var duration:Number = 3;
var myTween:Tween = new Tween(box, "x", None.easeIn, startValue, finishValue, duration, true);
myTween.looping = true;

easeInOut

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

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0, AIR 1.0

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

Parameters

t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.

Returns
Number — The value of the interpolated property at the specified time.

Related API Elements


Example  ( How to use this example )

This example animates a rectangle using the None.easeInOut easing function:
import fl.transitions.*;
import fl.transitions.easing.*;

stage.frameRate = 31;

var box:Sprite = new Sprite();
box.graphics.beginFill(Math.random() * 0xFFFFFF);
box.graphics.drawRect(0, 0, 100, 350);
box.graphics.endFill();
box.x = 50;
box.y = 10;
addChild(box);

var startValue:Number = box.x;
var finishValue:Number = 400;
var duration:Number = 3;
var myTween:Tween = new Tween(box, "x", None.easeInOut, startValue, finishValue, duration, true);
myTween.looping = true;

easeNone

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

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0, AIR 1.0

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

Parameters

t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.

Returns
Number — The value of the interpolated property at the specified time.

Related API Elements

easeOut

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

Language Version: ActionScript 3.0
Product Version: Flash CS3
Runtime Versions: Flash Player 9.0, AIR 1.0

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

Parameters

t:Number — Specifies the current time, between 0 and duration inclusive.
 
b:Number — Specifies the initial value of the animation property.
 
c:Number — Specifies the total change in the animation property.
 
d:Number — Specifies the duration of the motion.

Returns
Number — The value of the interpolated property at the specified time.

Related API Elements


Example  ( How to use this example )

This example animates a rectangle using the None.easeOut easing function:
import fl.transitions.*;
import fl.transitions.easing.*;

stage.frameRate = 31;

var box:Sprite = new Sprite();
box.graphics.beginFill(Math.random() * 0xFFFFFF);
box.graphics.drawRect(0, 0, 100, 350);
box.graphics.endFill();
box.x = 50;
box.y = 10;
addChild(box);

var startValue:Number = box.x;
var finishValue:Number = 400;
var duration:Number = 3;
var myTween:Tween = new Tween(box, "x", None.easeOut, startValue, finishValue, duration, true);
myTween.looping = true;