PolarTransform

套件	mx.charts.chartClasses
類別	public class PolarTransform
繼承	PolarTransform DataTransform EventDispatcher Object

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The PolarTransform object represents a set of axes used to map data values to angle/distance polar coordinates and vice versa.

You typically do not need to interact with the PolarTransform object. Transforms are created automatically by the built-in chart types and are used by the series contained within to transform data into rendering coordinates.

公用屬性

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	屬性		定義自
		axes : Object [唯讀] The set of axes associated with this transform.	DataTransform
		constructor : Object 類別物件的參照或是特定物件實體的建構函數。	Object
		elements : Array The elements that are associated with this transform.	DataTransform
		origin : Point [唯讀] The origin of the polar transform.	PolarTransform
		radius : Number [唯讀] The radius used by the transform to convert data units to polar coordinates.	PolarTransform

公用方法

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	方法		定義自
		PolarTransform() Constructor.	PolarTransform
		addEventListener(type:String, listener:Function, useCapture:Boolean = false, priority:int = 0, useWeakReference:Boolean = false):void 會在 EventDispatcher 物件註冊事件偵聽程式，以便讓偵聽程式收到事件的通知。	EventDispatcher
		dataChanged():void Informs the DataTransform that some of the underlying data being represented on the chart has changed.	DataTransform
		describeData(dimension:String, requiredFields:uint):Array Collects important displayed values for all elements associated with this data transform.	DataTransform
		dispatchEvent(event:Event):Boolean 會將事件傳送到事件流程。	EventDispatcher
		getAxis(dimension:String):IAxis Retrieves the axis instance responsible for transforming the data dimension specified by the dimension parameter.	DataTransform
		hasEventListener(type:String):Boolean 會檢查 EventDispatcher 物件是否有對特定的事件類型註冊偵聽程式。	EventDispatcher
		hasOwnProperty(name:String):Boolean 指出物件是否有已定義的指定屬性。	Object
		invertTransform(... values):Array Transforms x and y coordinates relative to the DataTransform coordinate system into a two-dimensional value in data space.	DataTransform
		isPrototypeOf(theClass:Object):Boolean 指出 Object 類別的實體是否位於指定為參數的物件原型鏈中。	Object
		propertyIsEnumerable(name:String):Boolean 指出指定的屬性是否存在，以及是否可列舉。	Object
		removeEventListener(type:String, listener:Function, useCapture:Boolean = false):void 會從 EventDispatcher 物件移除偵聽程式。	EventDispatcher
		setAxis(dimension:String, v:IAxis):void Assigns an axis instance to a particular dimension of the transform.	DataTransform
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void 為迴圈作業設定動態屬性的可用性。	Object
		setSize(width:Number, height:Number):void Sets the width and height that the PolarTransform uses when calculating origin and radius.	PolarTransform
		toLocaleString():String 傳回代表此物件的字串，根據地區特定慣例進行格式化。	Object
		toString():String 會傳回指定之物件的字串形式。	Object
		transformCache(cache:Array, aField:String, aConvertedField:String, rField:String, rConvertedField:String):void [覆寫] Maps a set of numeric values representing data to screen coordinates.	PolarTransform
		valueOf():Object 會傳回指定之物件的基本值。	Object
		willTrigger(type:String):Boolean 檢查此 EventDispatcher 物件是否已註冊事件偵聽程式，或者此物件的任何祖系已為特定事件類型註冊事件偵聽程式。	EventDispatcher

事件

按一下以瞭解事件的詳細資訊

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	摘要	定義自
activate	[廣播事件] 當 Flash Player 或 AIR 應用程式取得作業系統焦點並成為作用中時傳送。	EventDispatcher
deactivate	[廣播事件] 當 Flash Player 或 AIR 應用程式失去作業系統焦點並成為非作用中時傳送。	EventDispatcher
transformChange	Dispatched when the transformation from data space to screen space has changed, typically either because the axes that make up the transformation have changed in some way, or the data transform itself has size.	DataTransform

公用常數

	常數		定義自
		ANGULAR_AXIS : String = "a" [靜態] A string representing the angular axis.	PolarTransform
		RADIAL_AXIS : String = "r" [靜態] A string representing the radial axis.	PolarTransform

屬性詳細資訊

origin

屬性

origin:Point [唯讀]

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The origin of the polar transform. This point is used by associated series to convert data units to screen coordinates.

實作
public function get origin():Point

radius

屬性

radius:Number [唯讀]

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

The radius used by the transform to convert data units to polar coordinates.

實作
public function get radius():Number

建構函式詳細資料

()

建構函式

public function PolarTransform()

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Constructor.

方法詳細資訊

setSize

()

方法

public function setSize(width:Number, height:Number):void

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Sets the width and height that the PolarTransform uses when calculating origin and radius. The containing chart calls this method. You should not generally call this method directly.

參數

	`width:Number` — The width, in pixels, of the PolarTransform.

	`height:Number` — The height, in pixels, of the PolarTransform.

transformCache

()

方法

override public function transformCache(cache:Array, aField:String, aConvertedField:String, rField:String, rConvertedField:String):void

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

Maps a set of numeric values representing data to screen coordinates. This method assumes the values are all numbers, so any non-numeric values must have been previously converted with the mapCache() method.

參數

	`cache:Array` — An array of objects containing the data values in their fields. This is also where this function will store the converted numeric values.

	`aField:String` — The field where the data values for the x axis can be found.

	`aConvertedField:String` — The field where the mapped x screen coordinate will be stored.

	`rField:String` — The field where the data values for the y axis can be found.

	`rConvertedField:String` — The field where the mapped y screen coordinate will be stored.

常數詳細資訊

ANGULAR_AXIS

常數

public static const ANGULAR_AXIS:String = "a"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

A string representing the angular axis.

RADIAL_AXIS

常數

public static const RADIAL_AXIS:String = "r"

語言版本:

ActionScript 3.0

產品版本:

Flex 3

執行階段版本:

Flash Player 9, AIR 1.1

A string representing the radial axis.

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PolarTransform - AS3 Flex

類別 x

origin

radius

PolarTransform

setSize

transformCache

ANGULAR_AXIS

RADIAL_AXIS