GraphicsUtilities - Guida di riferimento alle API Adobe ActionScript® 3 (AS3 Flex)

Pacchetto	mx.charts.chartClasses
Classe	public class GraphicsUtilities
Ereditarietà	GraphicsUtilities Object

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

A set of internal graphics rendering utilities used by the various chart classes.

Proprietà pubbliche

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	Proprietà		Definito da
		constructor : Object Un riferimento all'oggetto classe o alla funzione di costruzione per una determinata istanza di oggetto.	Object

Metodi pubblici

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	Metodo		Definito da
		colorFromFill(f:Object):uint [statico] Converts a fill value into a solid color.	GraphicsUtilities
		drawArc(g:Graphics, x:Number, y:Number, startAngle:Number, arc:Number, radius:Number, yRadius:Number = NaN, continueFlag:Boolean = false):void [statico] Draws an arc in the target Graphics object.	GraphicsUtilities
		drawPolyLine(g:Graphics, pts:Array, start:int, end:int, hProp:String, vProp:String, stroke:IStroke, form:Object, moveToStart:Boolean = true):void [statico] Draws a line connecting the datapoints using one of various forms.	GraphicsUtilities
		fillFromStyle(v:Object):IFill [statico] Converts a style value into a Fill object.	GraphicsUtilities
		fillRect(g:Graphics, left:Number, top:Number, right:Number, bottom:Number, fill:Object = null, ls:Object = null):void [statico] Fill a rectangle using the provided IFill and IStroke objects.	GraphicsUtilities
		hasOwnProperty(name:String):Boolean Indica se per un oggetto è definita una proprietà specifica.	Object
		isPrototypeOf(theClass:Object):Boolean Indica se un'istanza della classe Object si trova nella catena di prototipi dell'oggetto specificato come parametro.	Object
		propertyIsEnumerable(name:String):Boolean Indica se la proprietà specificata esiste ed è enumerabile.	Object
		setLineStyle(g:Graphics, ls:IStroke):void [statico] Applies the values in a Stroke to the provded Graphics object.	GraphicsUtilities
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Imposta la disponibilità di una proprietà dinamica per le operazioni cicliche.	Object
		toLocaleString():String Restituisce la rappresentazione in formato stringa di questo oggetto, formattato in base alle convenzioni specifiche per le versioni localizzate.	Object
		toString():String Restituisce la rappresentazione in formato stringa dell'oggetto specificato.	Object
		valueOf():Object Restituisce il valore di base dell'oggetto specificato.	Object

Descrizione dei metodi

colorFromFill

()

metodo

public static function colorFromFill(f:Object):uint

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Converts a fill value into a solid color. This convenience method pulls a color value out of a Fill that best approximates the Fill on the screen.

Parametri

f:Object — The Fill object to extract a color from.

Restituisce

uint — A color value representing the Fill.

drawArc

()

metodo

 public static function drawArc(g:Graphics, x:Number, y:Number, startAngle:Number, arc:Number, radius:Number, yRadius:Number = NaN, continueFlag:Boolean = false):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Draws an arc in the target Graphics object.

Parametri

	`g:Graphics` — The Graphics object to draw into.

	`x:Number` — The horizontal origin of the arc.

	`y:Number` — The vertical origin of the arc.

	`startAngle:Number` — The starting angle, in radians, of the arc.

	`arc:Number` — The sweep, in radians, of the arc.

	`radius:Number` — The horizontal radius, in pixels, of the arc

	`yRadius:Number` (default = `NaN`) — The vertical radius, in pixels, of the arc. If unspecified, it is assumed to be the same as the radius

	`continueFlag:Boolean` (default = `false`) — Indicates whether the routine should move the graphics pen to the beginning of the arc before drawing. Set to `true` to continue drawing a line that is already in progress.

drawPolyLine

()

metodo

 public static function drawPolyLine(g:Graphics, pts:Array, start:int, end:int, hProp:String, vProp:String, stroke:IStroke, form:Object, moveToStart:Boolean = true):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Draws a line connecting the datapoints using one of various forms.

Parametri

	`g:Graphics` — The Graphics object to draw into.

	`pts:Array` — An Array of datapoints that define the line.

	`start:int` — The index of the first point in the `pts` Array to use when drawing the line.

	`end:int` — The index of the last point, exclusive, to use when drawing the line.

	`hProp:String` — The name of the property in the objects contained in the `pts` Array that defines the horizontal position of the points in the line.

	`vProp:String` — The name of the property in the objects contained in the `pts` Array that defines the vertical position of the points in the line.

	`stroke:IStroke` — The Stroke used to render the line.

	`form:Object` — The form to render the line with. Valid values are "segment","horizontal","vertical","step","reverseStep", or "curve". These forms are similar to the LineSeries class's `form` property.

	`moveToStart:Boolean` (default = `true`) — Indicates whether to first move the pen to the beginning of the line before drawing. Pass `false` to use this function to continue a line in progress.

fillFromStyle

()

metodo

public static function fillFromStyle(v:Object):IFill

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Converts a style value into a Fill object. This convenience method converts a value assigned through styles into a Fill object that can be used to fill an area on the screen. If the value is numeric, this function converts it into a corresponding SolidColor.

Parametri

v:Object — The value to convert into a Fill.

Restituisce

IFill — The corresponding IFill object.

fillRect

()

metodo

 public static function fillRect(g:Graphics, left:Number, top:Number, right:Number, bottom:Number, fill:Object = null, ls:Object = null):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Fill a rectangle using the provided IFill and IStroke objects. This utility function fills the provided rectangle in the Graphics object with the provided Fill and Stroke. If no Stroke is provided, the rectangle is filled with no border. If no Fill is provided, the rectangle is drawn with no fill.

Parametri

	`g:Graphics` — The Graphics object to draw into.

	`left:Number` — The left of the rectangle to fill.

	`top:Number` — The top of the rectangle to fill.

	`right:Number` — The right of the rectangle to fill.

	`bottom:Number` — The bottom of the rectangle to fill.

	`fill:Object` (default = `null`) — The IFill object to fill the rectangle with. Set this parameter to null to draw a rectangle with no Fill.

	`ls:Object` (default = `null`) — The stroke object to draw the rectangle with. Set this parameter to null to draw a rectangle with no Stroke.

setLineStyle

()

metodo

public static function setLineStyle(g:Graphics, ls:IStroke):void

Versione linguaggio:

ActionScript 3.0

Versione prodotto:

Flex 3

Versioni runtime:

Flash Player 9, AIR 1.1

Applies the values in a Stroke to the provded Graphics object. This utility function applies the Stroke passed in, or clears the line style of the provided Graphics object if the ls parameter is set to null.

Parametri

	`g:Graphics` — The Graphics object to modify.

	`ls:IStroke` — The IStroke instance to apply; set to `null` to render with no Stroke.

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GraphicsUtilities - AS3 Flex

Classi x

colorFromFill

drawArc

drawPolyLine

fillFromStyle

fillRect

setLineStyle