| Package | fl.motion |
| Class | public class CustomEase |
| Inheritance | CustomEase  Object |
| Implements | ITween |
| Language Version: | ActionScript 3.0 |
| Product Version: | Flash CS3 |
| Runtime Versions: | Flash Player 9.0.28.0, AIR 1.0 |
The implementation of this class parallels the Flash CS4 Custom Ease In/Ease Out dialog box. Flash CS4
displays a graph in the Custom Ease In/Ease Out dialog box representing the degree of motion over time.
The horizontal axis represents frames, and the vertical axis represents the percent of change of a property
through the progression of the tween. The first keyframe is represented as 0%, and the last keyframe is
represented as 100%. The slope of the graph's curve represents the rate of change of the object. When the
curve is horizontal (no slope), the velocity is zero; when the curve is vertical, an instantaneous rate of
change occurs.
Default MXML Propertypoints
Related API Elements
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 | |
| points : Array
An ordered collection of points in the custom easing curve. | CustomEase | ||
| prototype : Object [static]
A reference to the prototype object of a class or function object. | Object | |
| target : String
The name of the animation property to target. | CustomEase | ||
| Method | Defined By | ||
|---|---|---|---|
CustomEase(xml:XML = null)
Constructor for CustomEase instances. | CustomEase | ||
Calculates an interpolated value for a numerical property of animation,
using a custom easing curve. | CustomEase | ||
|
Indicates whether an object has a specified property defined. | Object | |
|
Indicates whether an instance of the Object class is in the prototype chain of the object specified
as the parameter. | Object | |
|
Indicates whether the specified property exists and is enumerable. | Object | |
|
Sets the availability of a dynamic property for loop operations. | Object | |
|
Returns the string representation of this object, formatted according to locale-specific conventions. | Object | |
|
Returns the string representation of the specified object. | Object | |
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Returns the primitive value of the specified object. | Object | |
points | property |
public var points:Array| Language Version: | ActionScript 3.0 |
| Product Version: | Flash CS3 |
| Runtime Versions: | Flash Player 9.0.28.0, AIR 1.0 |
An ordered collection of points in the custom easing curve.
Each item in the array is a flash.geom.Point instance.
The x and y properties of each point are normalized to fall between 0 and 1,
where 0 is the value of the animation property at the beginning of the tween,
and 1 is the value at the end of the tween.
The first and last points of the curve are not included in the array
because the first point is locked to the starting value defined by the current keyframe,
and the last point is locked to the ending value defined by the next keyframe.
On the custom easing curve, these points correspond to values of (0, 0) and (1, 1), respectively.
Related API Elements
target | property |
target:String| Language Version: | ActionScript 3.0 |
| Product Version: | Flash CS3 |
| Runtime Versions: | Flash Player 9.0.28.0, AIR 1.0 |
The name of the animation property to target.
The default value is "".
Implementation
public function get target():String public function set target(value:String):voidRelated API Elements
CustomEase | () | Constructor |
getValue | () | method |
public function getValue(time:Number, begin:Number, change:Number, duration:Number):Number| Language Version: | ActionScript 3.0 |
| Product Version: | Flash CS3 |
| Runtime Versions: | Flash Player 9.0.28.0, AIR 1.0 |
Calculates an interpolated value for a numerical property of animation,
using a custom easing curve.
The percent value is read from the CustomEase instance's points property,
rather than being passed into the method.
Using the property value allows the function signature to match the ITween interface.
Parameters
time:Number — The time value, which must lie between 0 and duration, inclusive.
You can choose any unit (for example. frames, seconds, milliseconds),
but your choice must match the duration unit.
| |
begin:Number — The value of the animation property at the start of the tween, when time is 0.
| |
change:Number — The change in the value of the animation property over the course of the tween.
The value can be positive or negative. For example, if an object rotates from 90 to 60 degrees, the change is -30.
| |
duration:Number — The length of time for the tween. This value must be greater than zero.
You can choose any unit (for example, frames, seconds, milliseconds),
but your choice must match the time unit.
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Number — The interpolated value at the specified time.
|
Related API Elements
Mon Nov 28 2011, 06:48 AM -08:00