Pacchetto | spark.filters |
Classe | public class GradientGlowFilter |
Ereditarietà | GradientGlowFilter GradientFilter BaseDimensionFilter BaseFilter EventDispatcher Object |
Implementa | IBitmapFilter |
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 10, AIR 1.5 |
The use of filters depends on the object to which you apply the filter:
- To apply filters to display objects, use the
filters
property. Setting thefilters
property of an object does not modify the object, and you can remove the filter by clearing thefilters
property. - To apply filters to BitmapData objects, use the
BitmapData.applyFilter()
method. CallingapplyFilter()
on a BitmapData object takes the source BitmapData object and the filter object and generates a filtered image as a result.
If you apply a filter to a display object, the cacheAsBitmap
property of the
display object is set to true
. If you clear all filters, the original value of
cacheAsBitmap
is restored.
This filter supports Stage scaling. However, it does not support general scaling, rotation,
and skewing; if the object itself is scaled (if scaleX
and scaleY
are set
to a value other than 1.0), the
filter effect is not scaled. It is scaled only when the user zooms in on the Stage.
A filter is not applied if the resulting image exceeds the maximum dimensions. In AIR 1.5 and Flash Player 10, the maximum is 8,191 pixels in width or height, and the total number of pixels cannot exceed 16,777,215 pixels. (So, if an image is 8,191 pixels wide, it can only be 2,048 pixels high.) For example, if you zoom in on a large movie clip with a filter applied, the filter is turned off if the resulting image exceeds the maximum dimensions.
Sintassi MXMLNascondi sintassi MXMLThe <s:GradientGlowFilter>
tag inherits all of the tag
attributes of its superclass and adds no tag attributes:
<s:GradientGlowFilter/>
Proprietà MXML predefinitaentries
Altri esempi
Elementi API correlati
flash.filters.GradientGlowFilter
flash.display.BitmapData.applyFilter()
flash.display.DisplayObject.cacheAsBitmap
flash.display.DisplayObject.filters
Metodo | Definito da | ||
---|---|---|---|
GradientGlowFilter(distance:Number = 4.0, angle:Number = 45, colors:Array = null, alphas:Array = null, ratios:Array = null, blurX:Number = 4.0, blurY:Number = 4.0, strength:Number = 1, quality:int = 1, type:String = "outer", knockout:Boolean = false)
Constructor. | GradientGlowFilter | ||
addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void
Registra un oggetto listener di eventi con un oggetto EventDispatcher, in modo che il listener riceva la notifica di un evento. | EventDispatcher | ||
Returns a copy of this filter object. | GradientGlowFilter | ||
Invia un evento nel flusso di eventi. | EventDispatcher | ||
Verifica se per l'oggetto EventDispatcher sono presenti listener registrati per un tipo specifico di evento. | EventDispatcher | ||
Indica se per un oggetto è definita una proprietà specifica. | Object | ||
Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro. | Object | ||
Propagates a change event when the filter has changed. | BaseFilter | ||
Indica se la proprietà specificata esiste ed è enumerabile. | Object | ||
Rimuove un listener dall'oggetto EventDispatcher. | EventDispatcher | ||
Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche. | Object | ||
Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate. | Object | ||
Restituisce la rappresentazione in formato stringa dell'oggetto specificato. | Object | ||
Restituisce il valore di base dell'oggetto specificato. | Object | ||
Verifica se un listener di eventi è registrato con questo oggetto EventDispatcher o qualsiasi suo antenato per il tipo di evento specificato. | EventDispatcher |
GradientGlowFilter | () | Funzione di costruzione |
public function GradientGlowFilter(distance:Number = 4.0, angle:Number = 45, colors:Array = null, alphas:Array = null, ratios:Array = null, blurX:Number = 4.0, blurY:Number = 4.0, strength:Number = 1, quality:int = 1, type:String = "outer", knockout:Boolean = false)
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 10, AIR 1.5 |
Constructor.
Parametridistance:Number (default = 4.0 ) — The offset distance of the glow.
| |
angle:Number (default = 45 ) — The angle, in degrees. Valid values are 0 to 360.
| |
colors:Array (default = null ) — An array of colors that defines a gradient.
For example, red is 0xFF0000, blue is 0x0000FF, and so on.
| |
alphas:Array (default = null ) — An array of alpha transparency values for the corresponding colors in
the colors array. Valid values for each element in the array are 0 to 1.
For example, a value of .25 sets the alpha transparency value to 25%.
| |
ratios:Array (default = null ) — An array of color distribution ratios. Valid values are
0 to 255. This value defines the percentage of the width where the color
is sampled at 100 percent.
| |
blurX:Number (default = 4.0 ) — The amount of horizontal blur. Valid values are 0 to 255. A blur of 1 or
less means that the original image is copied as is. Values that are a power of 2 (such as 2, 4, 8, 16 and 32) are optimized
to render more quickly than other values.
| |
blurY:Number (default = 4.0 ) — The amount of vertical blur. Valid values are 0 to 255. A blur of 1 or less
means that the original image is copied as is. Values that are a power of 2 (such as 2, 4, 8, 16 and 32) are optimized
to render more quickly than other values.
| |
strength:Number (default = 1 ) — The strength of the imprint or spread. The higher the value, the more color is
imprinted and the stronger the contrast between the glow and the background.
Valid values are 0 to 255. The larger the value, the stronger the imprint. A value of 0
means the filter is not applied.
| |
quality:int (default = 1 ) — The number of times to apply the filter. Use the flash.filters.BitmapFilterQuality constants:
For more information, see the description of the | |
type:String (default = "outer ") — The placement of the filter effect. Possible values are the
flash.filters.BitmapFilterType constants:
| |
knockout:Boolean (default = false ) — Specifies whether the object has a knockout effect. A knockout effect
makes the object's fill transparent and reveals the background color of the document.
The value true specifies a knockout effect;
the default is false (no knockout effect).
|
clone | () | metodo |
public function clone():BitmapFilter
Versione linguaggio: | ActionScript 3.0 |
Versione prodotto: | Flex 4 |
Versioni runtime: | Flash Player 10, AIR 1.5 |
Returns a copy of this filter object.
RestituisceBitmapFilter — A new GradientGlowFilter instance with all the
same properties as the original GradientGlowFilter instance.
|
<?xml version="1.0"?> <!-- filters/examples/GradientGlowFilterExample .mxml --> <s:Application xmlns:fx="http://ns.adobe.com/mxml/2009" xmlns:mx="library://ns.adobe.com/flex/mx" xmlns:s="library://ns.adobe.com/flex/spark" creationComplete="createFilters()"> <fx:Script><![CDATA[ import spark.filters.*; import flash.filters.BitmapFilterQuality; import flash.filters.BitmapFilterType; private var myGradientGlowFilter:GradientGlowFilter; private var colors:Array = [0xFFFFFF, 0xFF0000, 0xFFFF00, 0x00CCFF]; private var alphas:Array = [0, 1, 1, 1]; private var ratios:Array = [0, 63, 126, 255]; public function createFilters():void { myGradientGlowFilter = new GradientGlowFilter(0, 45, colors, alphas, ratios, 50, 50, 2.5, BitmapFilterQuality.HIGH, BitmapFilterType.OUTER, false); b1.filters = [myGradientGlowFilter]; } ]]></fx:Script> <s:VGroup> <!-- This button has a filter applied in ActionScript. --> <s:Button id="b1" label="Click me"/> <!-- This button has a filter applied in MXML. --> <s:Button id="b2" label="Click me"> <s:filters> <s:GradientGlowFilter distance="10" angle="45" blurX="50" blurY="50" strength="2.5" quality="{BitmapFilterQuality.HIGH}" type="{BitmapFilterType.OUTER}" knockout="false"> <s:entries> <s:GradientEntry alpha="0" color="0xFFFFFF" ratio="0"/> <s:GradientEntry alpha="1" color="0xFF0000" ratio="63"/> <s:GradientEntry alpha="1" color="0xFFFF00" ratio="126"/> <s:GradientEntry alpha="1" color="0x00CCFF" ratio="255"/> </s:entries> </s:GradientGlowFilter> </s:filters> </s:Button> </s:VGroup> </s:Application>
Tue Jun 12 2018, 02:44 PM Z