mx.charts.effects.SeriesZoom - Adobe® Flex® 4 Language Reference (Flex 4)

Package	mx.charts.effects
Class	public class SeriesZoom
Inheritance	SeriesZoom SeriesEffect TweenEffect Effect EventDispatcher Object

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

The SeriesZoom effect implodes and explodes chart data into and out of the focal point that you specify. As with the SeriesSlide effect, whether the effect is zooming to or from this point depends on whether it is assigned to the showDataEffect or hideDataEffect effect trigger.

MXML Syntax expanded

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The <mx:SeriesZoom> tag inherits all the properties of its parent classes, and adds the following properties:

  <mx:SeriesZoom
    Properties
    horizontalFocus="center|left|right|null"
    relativeTo="series|chart"
    verticalFocus="top|center|bottom|null"
  />

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Public Properties

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	Property		Defined By
		className : String [read-only] The name of the effect class, such as "Fade".	Effect
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		customFilter : mx.effects:EffectTargetFilter Specifies a custom filter object, of type EffectTargetFilter, used by the effect to determine the targets on which to play the effect.	Effect
		duration : Number Duration of the effect in milliseconds.	Effect
		easingFunction : Function = null The easing function for the animation.	TweenEffect
		effectTargetHost : mx.effects:IEffectTargetHost A property that lets you access the target list-based control of a data effect.	Effect
		elementOffset : Number = 20 Specifies the amount of time, in milliseconds, that Flex delays the start of the effect on each element in the series.	SeriesEffect
		filter : String Specifies an algorithm for filtering targets for an effect.	Effect
		hideFocusRing : Boolean Determines whether the effect should hide the focus ring when starting the effect.	Effect
		horizontalFocus : String Defines the location of the focul point of the zoom.	SeriesZoom
		instanceClass : Class An object of type Class that specifies the effect instance class class for this effect class.	Effect
		isPlaying : Boolean [read-only] A read-only flag which is true if any instances of the effect are currently playing, and false if none are.	Effect
		minimumElementDuration : Number = 0 Specifies the amount of time, in milliseconds, that an individual element should take to complete the effect.	SeriesEffect
		offset : Number = 0 Specifies the amount of time, in milliseconds, that Flex delays the effect.	SeriesEffect
		perElementOffset : Number Additional delay, in milliseconds, for effect targets after the first target of the effect.	Effect
		playheadTime : Number Current time position of the effect.	Effect
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object
		relativeTo : String = "series" Controls the bounding box that Flex uses to calculate the focal point of the zooms.	SeriesZoom
		relevantProperties : Array An Array of property names to use when performing filtering.	Effect
		relevantStyles : Array An Array of style names to use when performing filtering.	Effect
		repeatCount : int = 1 Number of times to repeat the effect.	Effect
		repeatDelay : int = 0 Amount of time, in milliseconds, to wait before repeating the effect.	Effect
		startDelay : int = 0 Amount of time, in milliseconds, to wait before starting the effect.	Effect
		suspendBackgroundProcessing : Boolean = false If true, blocks all background processing while the effect is playing.	Effect
		target : Object The object to which this effect is applied.	Effect
		targets : Array An Array of objects that are targets for the effect.	Effect
		triggerEvent : Event The Event object passed to this Effect by the EffectManager when an effect is triggered, or null if the effect is not being played by the EffectManager.	Effect
		type : String = "show" The type of transition this effect is being used for.	SeriesEffect
		verticalFocus : String Defines the location of the focal point of the zoom.	SeriesZoom

Protected Properties

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	Property		Defined By
		applyTransitionEndProperties : Boolean This flag controls whether the effect, when run in a transition, automatically applies the property values according to the end state, as opposed to leaving values as set by the effect itself.	Effect
		endValuesCaptured : Boolean = false A flag containing true if the end values of an effect have already been determined, or false if they should be acquired from the current properties of the effect targets when the effect runs.	Effect

Public Methods

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	Method		Defined By
		SeriesZoom(target:Object = null) Constructor.	SeriesZoom
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void Registers an event listener object with an EventDispatcher object so that the listener receives notification of an event.	EventDispatcher
		captureEndValues():void Captures the current values of the relevant properties on the effect's targets and saves them as end values.	Effect
		captureMoreStartValues(targets:Array):void Captures the current values of the relevant properties of an additional set of targets Flex uses this function when a data change effect is run.	Effect
		captureStartValues():void Captures the current values of the relevant properties on the effect's targets.	Effect
		createInstance(target:Object = null):IEffectInstance Creates a single effect instance and initializes it.	Effect
		createInstances(targets:Array = null):Array Takes an Array of target objects and invokes the createInstance() method on each target.	Effect
		deleteInstance(instance:IEffectInstance):void Removes event listeners from an instance and removes it from the list of instances.	Effect
		dispatchEvent(event:Event):Boolean Dispatches an event into the event flow.	EventDispatcher
		end(effectInstance:IEffectInstance = null):void Interrupts an effect that is currently playing, and jumps immediately to the end of the effect.	Effect
		getAffectedProperties():Array Returns an Array of Strings, where each String is the name of a property changed by this effect.	Effect
		hasEventListener(type:String):Boolean Checks whether the EventDispatcher object has any listeners registered for a specific type of event.	EventDispatcher
		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
		pause():void Pauses the effect until you call the resume() method.	Effect
		play(targets:Array = null, playReversedFromEnd:Boolean = false):Array Begins playing the effect.	Effect
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void Removes a listener from the EventDispatcher object.	EventDispatcher
		resume():void Resumes the effect after it has been paused by a call to the pause() method.	Effect
		reverse():void Plays the effect in reverse, if the effect is currently playing, starting from the current position of the effect.	Effect
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		stop():void Stops the effect, leaving the effect targets in their current state.	Effect
		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
		willTrigger(type:String):Boolean Checks whether an event listener is registered with this EventDispatcher object or any of its ancestors for the specified event type.	EventDispatcher

Protected Methods

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	Method		Defined By
		applyValueToTarget(target:Object, property:String, value:*, props:Object):void Used internally by the Effect infrastructure.	Effect
		effectEndHandler(event:EffectEvent):void Called when an effect instance has finished playing.	Effect
		effectStartHandler(event:EffectEvent):void This method is called when the effect instance starts playing.	Effect
		effectStopHandler(event:EffectEvent):void Called when an effect instance has stopped by a call to the stop() method.	Effect
		filterInstance(propChanges:Array, target:Object):Boolean Determines the logic for filtering out an effect instance.	Effect
		getValueFromTarget(target:Object, property:String):* Called by the captureStartValues() method to get the value of a property from the target.	Effect
		initInstance(instance:IEffectInstance):void Copies properties of the effect to the effect instance.	Effect
		tweenEventHandler(event:mx.events:TweenEvent):void Called when the TweenEffect dispatches a TweenEvent.	TweenEffect

Events

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	Summary	Defined By
activate	[broadcast event] Dispatched when the Flash Player or AIR application gains operating system focus and becomes active.	EventDispatcher
deactivate	[broadcast event] Dispatched when the Flash Player or AIR application operating loses system focus and is becoming inactive.	EventDispatcher
effectEnd	Dispatched when one of the effect's instances finishes playing, either when the instance finishes playing or when the effect is interrupted by a call to the end() method.	Effect
effectStart	Dispatched when the effect starts playing.	Effect
effectStop	Dispatched when the effect has been stopped, which only occurs when the effect is interrupted by a call to the stop() method.	Effect
tweenEnd	Dispatched when the tween effect ends.	TweenEffect
tweenStart	Dispatched when the tween effect starts, which corresponds to the first call to the onTweenUpdate() method.	TweenEffect
tweenUpdate	Dispatched every time the tween effect updates the target.	TweenEffect

Property Detail

horizontalFocus

property

public var horizontalFocus:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Defines the location of the focul point of the zoom.

Valid values of the horizontalFocus property are "left", "center", "right", and null.

You combine the horizontalFocus and verticalFocus properties to define where the data series zooms in and out from. For example, set the horizontalFocus property to "left" and the verticalFocus property to "top" to zoom the series data to and from the top left corner of either the element or the chart (depending on the setting of the relativeTo property).

If you specify only one of these two properties, then the focus is a horizontal or vertical line rather than a point. For example, when you set horizontalFocus to "left" but verticalFocus to null, the element zooms to and from a vertical line along the left edge of its bounding box. Set the verticalFocus property to "center" to zoom chart elements to and from a horizontal line along the middle of the chart's bounding box.

The default value is "center".

relativeTo

property

public var relativeTo:String = "series"

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Controls the bounding box that Flex uses to calculate the focal point of the zooms.

Valid values for the relativeTo property are "series" and "chart".

Set to "series" to zoom each element relative to itself. For example, each column of a ColumnChart zooms from the top left of the column, the center of the column, and so on.

Set to "chart" to zoom each element relative to the chart area. For example, each column zooms from the top left of the axes, the center of the axes, and so on.

The default value is "series".

verticalFocus

property

public var verticalFocus:String

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Defines the location of the focal point of the zoom. For more information, see the description of the horizontalFocus property.

Valid values of verticalFocus are "top", "center", "bottom", and null.

The default value is "center".

Constructor Detail

SeriesZoom

()

Constructor

public function SeriesZoom(target:Object = null)

Language Version:

ActionScript 3.0

Product Version:

Flex 3

Runtime Versions:

Flash Player 9, AIR 1.1

Constructor.

Parameters

target:Object (default = null)

Examples How to use this example

SeriesZoomExample.mxml

<?xml version="1.0"?>
<!-- Simple example to demonstrate the CandlestickChart control. -->
<s:Application xmlns:fx="http://ns.adobe.com/mxml/2009"
    xmlns:s="library://ns.adobe.com/flex/spark" 
    xmlns:mx="library://ns.adobe.com/flex/mx">

    <fx:Script>
        <![CDATA[
          
        import mx.collections.ArrayCollection;

        [Bindable]
        private var companyAAC:ArrayCollection = new ArrayCollection( [
            { Date: "25-Jul", Open: 40.75,  High: 40.75, Low: 40.24, Close:40.31},
            { Date: "26-Jul", Open: 39.98,  High: 40.78, Low: 39.97, Close:40.34},
            { Date: "27-Jul", Open: 40.38,  High: 40.66, Low: 40, Close:40.63},
            { Date: "28-Jul", Open: 40.49,  High: 40.99, Low: 40.3, Close:40.98},
            { Date: "29-Jul", Open: 40.13,  High: 40.4, Low: 39.65, Close:39.95},
            { Date: "1-Aug", Open: 39.00,  High: 39.50, Low: 38.7, Close:38.6}, 
            { Date: "2-Aug", Open: 38.68,  High: 39.34, Low: 37.75, Close:38.84}, 
            { Date: "3-Aug", Open: 38.76,  High: 38.76, Low: 38.03, Close:38.12}, 
            { Date: "4-Aug", Open: 37.98,  High: 37.98, Low: 36.56, Close:36.69},                       
            { Date: "5-Aug", Open: 36.61,  High: 37, Low: 36.48, Close:36.86} ]);

        [Bindable]
        private var companyBAC:ArrayCollection = new ArrayCollection( [
            { Date: "25-Jul", Open: 18.50,  High: 19, Low: 18.48, Close:18.86},
            { Date: "26-Jul", Open: 19.56,  High: 19.98, Low: 18.6, Close:18.69},                       
            { Date: "27-Jul", Open: 20.81,  High: 20.99, Low: 20.03, Close:20.12}, 
            { Date: "28-Jul", Open: 20.70,  High: 21.00, Low: 19.5, Close:20.84}, 
            { Date: "29-Jul", Open: 21.7,  High: 21.79, Low: 20.45, Close:20.6}, 
            { Date: "1-Aug", Open: 22.45,  High: 22.65, Low: 21.65, Close:21.95},
            { Date: "2-Aug", Open: 22.56,  High: 22.6, Low: 22.05, Close:22.98},
            { Date: "3-Aug", Open: 22.42,  High: 22.70, Low: 22.1, Close:22.63},
            { Date: "4-Aug", Open: 21.67,  High: 22.82, Low: 21.67, Close:22.34},
            { Date: "5-Aug", Open: 22.44,  High: 22.85, Low: 22.12, Close:22.31} ]);
        ]]>
    </fx:Script>
    
    <fx:Declarations>
        <mx:SeriesZoom id="zoomIn" duration="1000"/>
        <mx:SeriesZoom id="zoomOut" duration="1000"/>
    </fx:Declarations>

    <mx:Panel title="CandlestickChart Control Example" height="100%" width="100%" 
        paddingTop="10" paddingLeft="10" paddingRight="10" paddingBottom="10">

        <mx:CandlestickChart id="candlestickchart" height="100%" width="100%"
            paddingRight="5" paddingLeft="5" 
            showDataTips="true" dataProvider="{companyAAC}">
            
            <mx:verticalAxis>
                <mx:LinearAxis id="vaxis" baseAtZero="false" title="Price"/>
            </mx:verticalAxis>

            <mx:horizontalAxis>
                <mx:CategoryAxis id="haxis" categoryField="Date" title="Date"/>
            </mx:horizontalAxis>

            <mx:horizontalAxisRenderers>
                <mx:AxisRenderer axis="{haxis}" canDropLabels="true"/>
            </mx:horizontalAxisRenderers>

            <mx:series>
                <mx:CandlestickSeries  
                    openField="Open" highField="High" 
                    lowField="Low" closeField="Close"
                    showDataEffect="{zoomIn}" 
                    hideDataEffect="{zoomOut}"/>
            </mx:series>
        </mx:CandlestickChart>
        
        <mx:Label width="100%" color="blue"
            text="Choose a company to view recent stock data."/>

        <mx:HBox>
            <mx:RadioButton groupName="stocks" label="View Company A"
                selected="true" click="candlestickchart.dataProvider=companyAAC;"/>
            <mx:RadioButton groupName="stocks" label="View Company B"
                click="candlestickchart.dataProvider=companyBAC;"/>
        </mx:HBox>
    </mx:Panel>
</s:Application>