spark.primitives.Path

Public Properties

	Property		Defined By
		alpha : Number The level of transparency of the graphic element.	GraphicElement
		alwaysCreateDisplayObject : Boolean Specifies that this GraphicElement is to be associated with and be rendered to its own DisplayObject.	GraphicElement
		baseline : Object The vertical distance in pixels from the anchor target to the control's baseline position.	GraphicElement
		baselinePosition : Number [read-only] The y-coordinate of the baseline of the first line of text of the component.	GraphicElement
		blendMode : String A value from the BlendMode class that specifies which blend mode to use.	GraphicElement
		bottom : Object The vertical distance in pixels from the bottom edge of the component to the anchor target's bottom edge.	GraphicElement
		data : String A string containing a compact represention of the path segments.	Path
		depth : Number Determines the order in which items inside of containers are rendered.	GraphicElement
		designLayer : DesignLayer Specifies the optional DesignLayer instance associated with this visual element.	GraphicElement
		displayObject : DisplayObject [read-only] The shared DisplayObject where this IGraphicElement is drawn.	GraphicElement
		displayObjectSharingMode : String Indicates the association between this IGraphicElement and its display objects.	GraphicElement
		explicitHeight : Number Number that specifies the explicit height of the component, in pixels, in the component's coordinates.	GraphicElement
		explicitMaxHeight : Number The maximum recommended height of the component to be considered by the parent during layout.	GraphicElement
		explicitMaxWidth : Number The maximum recommended width of the component to be considered by the parent during layout.	GraphicElement
		explicitMinHeight : Number The minimum recommended height of the component to be considered by the parent during layout.	GraphicElement
		explicitMinWidth : Number The minimum recommended width of the component to be considered by the parent during layout.	GraphicElement
		explicitWidth : Number Number that specifies the explicit width of the component, in pixels, in the component's coordinates.	GraphicElement
		fill : IFill The object that defines the properties of the fill.	FilledElement
		filters : Array An indexed array that contains each filter object currently associated with the graphic element.	GraphicElement
		hasLayoutMatrix3D : Boolean [read-only] Contains true if the element has 3D Matrix.	GraphicElement
		height : Number The height of the graphic element.	GraphicElement
		horizontalCenter : Object The horizontal distance in pixels from the center of the component to the center of the anchor target's content area.	GraphicElement
		id : String The identity of the component.	GraphicElement
		includeInLayout : Boolean Specifies whether this element is included in the layout of the parent.	GraphicElement
		is3D : Boolean [read-only] Contains true when the element is in 3D.	GraphicElement
		layoutDirection : String Specifies the desired layout direction for an element: one of LayoutDirection.LTR (left to right), LayoutDirection.RTL (right to left), or null (inherit).	GraphicElement
		left : Object The horizontal distance in pixels from the left edge of the component to the anchor target's left edge.	GraphicElement
		luminosityClip : Boolean A property that controls whether the luminosity mask clips the masked content.	GraphicElement
		luminosityInvert : Boolean A property that controls the calculation of the RGB color value of a graphic element being masked by a luminosity mask.	GraphicElement
		mask : DisplayObject The calling display object is masked by the specified mask object.	GraphicElement
		maskType : String Defines how the mask is applied to the GraphicElement. The possible values are MaskType.CLIP, MaskType.ALPHA, and MaskType.LUMINOSITY. Clip Masking When masking in clip mode, a clipping masks is reduced to 1-bit.	GraphicElement
		maxHeight : Number The maximum recommended height of the component to be considered by the parent during layout.	GraphicElement
		maxWidth : Number The maximum recommended width of the component to be considered by the parent during layout.	GraphicElement
		measuredHeight : Number The default height of the component, in pixels.	GraphicElement
		measuredWidth : Number The default width of the component, in pixels.	GraphicElement
		measuredX : Number The default measured bounds top-left corner relative to the origin of the element.	GraphicElement
		measuredY : Number The default measured bounds top-left corner relative to the origin of the element.	GraphicElement
		minHeight : Number The minimum recommended height of the component to be considered by the parent during layout.	GraphicElement
		minWidth : Number The minimum recommended width of the component to be considered by the parent during layout.	GraphicElement
		MXMLDescriptor : Array [read-only]	GraphicElement
		MXMLProperties : Array [read-only]	GraphicElement
		owner : DisplayObjectContainer The owner of this IVisualElement object.	GraphicElement
		parent : DisplayObjectContainer [read-only] The parent container or component for this component.	GraphicElement
		percentHeight : Number Specifies the height of a component as a percentage of its parent's size.	GraphicElement
		percentWidth : Number Specifies the width of a component as a percentage of its parent's size.	GraphicElement
		postLayoutTransformOffsets : TransformOffsets Defines a set of adjustments that can be applied to the object's transform in a way that is invisible to its parent's layout.	GraphicElement
		right : Object The horizontal distance in pixels from the right edge of the component to the anchor target's right edge.	GraphicElement
		rotation : Number Indicates the rotation of the element, in degrees, from the transform point.	GraphicElement
		rotationX : Number Indicates the x-axis rotation of the element instance, in degrees, from its original orientation relative to the 3D parent container.	GraphicElement
		rotationY : Number Indicates the y-axis rotation of the DisplayObject instance, in degrees, from its original orientation relative to the 3D parent container.	GraphicElement
		rotationZ : Number Indicates the rotation of the element, in degrees, from the transform point.	GraphicElement
		scaleX : Number The horizontal scale (percentage) of the element as applied from the transform point.	GraphicElement
		scaleY : Number The vertical scale (percentage) of the element as applied from the transform point.	GraphicElement
		scaleZ : Number The z scale (percentage) of the element as applied from the transform point.	GraphicElement
		stroke : IStroke The stroke used by this element.	StrokedElement
		top : Object The vertical distance in pixels from the top edge of the component to the anchor target's top edge.	GraphicElement
		transform : Transform	GraphicElement
		transformX : Number The x position transform point of the element.	GraphicElement
		transformY : Number The y position transform point of the element.	GraphicElement
		transformZ : Number The z position transform point of the element.	GraphicElement
		verticalCenter : Object The vertical distance in pixels from the center of the component to the center of the anchor target's content area.	GraphicElement
		visible : Boolean Controls the visibility of this visual element.	GraphicElement
		width : Number The width of the graphic element.	GraphicElement
		winding : String Fill rule for intersecting or overlapping path segments.	Path
		x : Number The x position of the graphic element.	GraphicElement
		y : Number The y position of the graphic element.	GraphicElement
		z : Number The z position of the graphic element.	GraphicElement

	Property	Defined By
		drawnDisplayObject : DisplayObject [read-only] The actual DisplayObject that is drawn into by the GraphicElement.	GraphicElement
		drawX : Number [read-only] The x position where the element should be drawn.	GraphicElement
		drawY : Number [read-only] The y position where the element should be drawn.	GraphicElement
		hasComplexLayoutMatrix : Boolean [read-only] Returns true if the GraphicElement has any non-translation (x,y) transform properties	GraphicElement
		layoutFeatures : AdvancedLayoutFeatures Contain all of the implementation details of how the GraphicElement implements transform and layering support.	GraphicElement
		needsDisplayObject : Boolean [read-only] True if the element requires an exclusive DisplayObject.	GraphicElement

Public Methods

Hide Inherited Public Methods

Show Inherited Public Methods

	Method		Defined By
		Path() Constructor.	Path
		canShareWithNext(element:IGraphicElement):Boolean Returns true if this IGraphicElement is compatible and can share display objects with the next IGraphicElement in the sequence.	GraphicElement
		canShareWithPrevious(element:IGraphicElement):Boolean Returns true if this IGraphicElement is compatible and can share display objects with the previous IGraphicElement in the sequence.	GraphicElement
		createDisplayObject():DisplayObject Creates a new DisplayObject where this IGraphicElement is drawn.	GraphicElement
		generateMXMLArray(document:Object, data:Array, recursive:Boolean = true):Array	GraphicElement
		generateMXMLVector(document:Object, data:Array, recursive:Boolean = true):*	GraphicElement
		getBoundsXAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number [override] Returns the x coordinate of the element's bounds at the specified element size.	Path
		getBoundsYAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number [override] Returns the y coordinate of the element's bounds at the specified element size.	Path
		getLayoutBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's layout height.	GraphicElement
		getLayoutBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's layout width.	GraphicElement
		getLayoutBoundsX(postLayoutTransform:Boolean = true):Number Returns the x coordinate that the element uses to draw on screen.	GraphicElement
		getLayoutBoundsY(postLayoutTransform:Boolean = true):Number Returns the y coordinate that the element uses to draw on screen.	GraphicElement
		getLayoutMatrix():Matrix Returns the transform matrix that is used to calculate the component's layout relative to its siblings.	GraphicElement
		getLayoutMatrix3D():Matrix3D Returns the layout transform Matrix3D for this element.	GraphicElement
		getMaxBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's maximum height.	GraphicElement
		getMaxBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's maximum width.	GraphicElement
		getMinBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's minimum height.	GraphicElement
		getMinBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's minimum width.	GraphicElement
		getPreferredBoundsHeight(postLayoutTransform:Boolean = true):Number Returns the element's preferred height.	GraphicElement
		getPreferredBoundsWidth(postLayoutTransform:Boolean = true):Number Returns the element's preferred width.	GraphicElement
		initialized(document:Object, id:String):void Called automatically by the MXML compiler when the GraphicElement is created using an MXML tag.	GraphicElement
		invalidateDisplayList():void Calling this method results in a call to the elements's validateDisplayList() method before the display list is rendered.	GraphicElement
		invalidateLayoutDirection():void An element must call this method when its layoutDirection changes or when its parent's layoutDirection changes.	GraphicElement
		invalidateProperties():void Calling this method results in a call to the elements's validateProperties() method before the display list is rendered.	GraphicElement
		invalidateSize():void Calling this method results in a call to the elements's validateSize() method before the display list is rendered.	GraphicElement
		localToGlobal(point:Point):Point Converts the point object from the object's (local) coordinates to the Stage (global) coordinates.	GraphicElement
		parentChanged(value:IGraphicElementContainer):void Called by IGraphicElementContainer when an IGraphicElement is added to or removed from the host component.	GraphicElement
		setLayoutBoundsPosition(newBoundsX:Number, newBoundsY:Number, postLayoutTransform:Boolean = true):void Sets the coordinates that the element uses to draw on screen.	GraphicElement
		setLayoutBoundsSize(width:Number, height:Number, postLayoutTransform:Boolean = true):void Sets the layout size of the element.	GraphicElement
		setLayoutMatrix(value:Matrix, invalidateLayout:Boolean):void Sets the transform Matrix that is used to calculate the component's layout size and position relative to its siblings.	GraphicElement
		setLayoutMatrix3D(value:Matrix3D, invalidateLayout:Boolean):void Sets the transform Matrix3D that is used to calculate the component's layout size and position relative to its siblings.	GraphicElement
		setMXMLDescriptor(value:Array):void	GraphicElement
		setMXMLProperties(value:Array):void	GraphicElement
		setSharedDisplayObject(sharedDisplayObject:DisplayObject):Boolean Determines whether this element can draw itself to the sharedDisplayObject of the sequence.	GraphicElement
		transformAround(transformCenter:Vector3D, scale:Vector3D = null, rotation:Vector3D = null, translation:Vector3D = null, postLayoutScale:Vector3D = null, postLayoutRotation:Vector3D = null, postLayoutTranslation:Vector3D = null, invalidateLayout:Boolean = true):void A utility method to update the rotation, scale, and translation of the transform while keeping a particular point, specified in the component's own coordinate space, fixed in the parent's coordinate space.	GraphicElement
		transformPointToParent(localPosition:Vector3D, position:Vector3D, postLayoutPosition:Vector3D):void A utility method to transform a point specified in the local coordinates of this object to its location in the object's parent's coordinates.	GraphicElement
		validateDisplayList():void Called by the IGraphicElementContainer to redraw this element in its displayObject property.	GraphicElement
		validateNow():void Validates and updates the properties and layout of this object by immediately calling validateProperties(), validateSize(), and validateDisplayList(), if necessary.	GraphicElement
		validateProperties():void Used by layout logic to validate the properties of a component by calling the commitProperties() method.	GraphicElement
		validateSize():void Called by the IGraphicElementContainer to validate the size of this element.	GraphicElement

	Method	Defined By
		beginDraw(g:Graphics):void [override] Set up the drawing for this element.	FilledElement
		canSkipMeasurement():Boolean Determines if the call to the measure() method can be skipped.	GraphicElement
		commitProperties():void Processes the properties set on the element.	GraphicElement
		draw(g:Graphics):void [override] Draw the element.	Path
		endDraw(g:Graphics):void [override] Finalize drawing for this element.	Path
		generateMXMLAttributes(data:Array):void	GraphicElement
		generateMXMLInstances(document:Object, data:Array, recursive:Boolean = true):void	GraphicElement
		generateMXMLObject(document:Object, data:Array):Object	GraphicElement
		getStrokeExtents(postLayoutTransform:Boolean = true):Rectangle Returns the amount of pixels occupied by the stroke on each side of the element's bounds.	GraphicElement
		invalidateDisplayObjectSharing():void [override] Utility method that notifies the host that this element has changed and needs its layer to be updated.	Path
		invalidateParentSizeAndDisplayList():void Helper method to invalidate parent size and display list if this object affects its layout (includeInLayout is true).	GraphicElement
		measure():void [override] Calculates the default size of the element.	Path
		preferredHeightPreTransform():Number Used for the implementation of the ILayoutElement interface, returns the explicit measured height pre-transform.	GraphicElement
		preferredWidthPreTransform():Number Used for the implementation of the ILayoutElement interface, returns the explicit of measured width pre-transform.	GraphicElement
		transformHeightForLayout(width:Number, height:Number, postLayoutTransform:Boolean = true):Number Transform the element's size.	GraphicElement
		transformWidthForLayout(width:Number, height:Number, postLayoutTransform:Boolean = true):Number Transform the element's size.	GraphicElement
		updateDisplayList(unscaledWidth:Number, unscaledHeight:Number):void [override] Draws the element and/or sizes and positions its content.	StrokedElement

Property Detail

data

property

data:String

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

A string containing a compact represention of the path segments. This is an alternate way of setting the segments property. Setting this property overrides any values stored in the segments array property.

The value is a space-delimited string describing each path segment. Each segment entry has a single character which denotes the segment type and two or more segment parameters.

If the segment command is upper-case, the parameters are absolute values. If the segment command is lower-case, the parameters are relative values.

The following table shows the syntax for the segments:

Segment Type	Command	Parameters	Example
Move	M/m	x y	`M 10 20` - Move line to 10, 20.
Line	L/l	x y	`L 50 30` - Line to 50, 30.
Horizontal line	H/h	x	`H 40` = Horizontal line to 40.
Vertical line	V/v	y	`V 100` - Vertical line to 100.
QuadraticBezier	Q/q	controlX controlY x y	`Q 110 45 90 30` - Curve to 90, 30 with the control point at 110, 45.
CubicBezier	C/c	control1X control1Y control2X control2Y x y	`C 45 50 20 30 10 20` - Curve to 10, 20 with the first control point at 45, 50 and the second control point at 20, 30.
Close path	Z/z	n/a	Closes off the path.

The default value is null.

Implementation
public function get data():String
public function set data(value:String):void

winding

property

winding:String

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Fill rule for intersecting or overlapping path segments. Possible values are GraphicsPathWinding.EVEN_ODD or GraphicsPathWinding.NON_ZERO.

The default value is evenOdd.

Implementation
public function get winding():String
public function set winding(value:String):void

See also

flash.display.GraphicsPathWinding

Constructor Detail

Path

()

Constructor

public function Path()

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Constructor.

Method Detail

draw

()

method

override protected function draw(g:Graphics):void

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Draw the element. This is the second of three steps taken during the drawing process. Override this method to implement your drawing. The stroke (and fill, if applicable) have been set in the beginDraw() method. Your override should only contain calls to drawing methods such as moveTo(), curveTo(), and drawRect().

Parameters

g:Graphics — The graphic element to draw.

endDraw

()

method

override protected function endDraw(g:Graphics):void

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Finalize drawing for this element. This is the final of the three steps taken during the drawing process. In this step, fills are closed.

Parameters

g:Graphics — The graphics element to finish drawing.

getBoundsXAtSize

()

method

override public function getBoundsXAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Returns the x coordinate of the element's bounds at the specified element size.

This method is typically used by layouts during a call to the measure() method to predict what the element position will be, if the element is resized to particular dimensions.

Parameters

	`width:Number` — The element's bounds width, or NaN to use the preferred width.

	`height:Number` — The element's bounds height, or NaN to use the preferred height.

	`postLayoutTransform:Boolean` (default = `true`) — When `postLayoutTransform` is true, the method returns x coordinate of the element's bounding box top-left corner. The bounding box is in element's parent coordinate space and is calculated from the specified bounds size, layout position and layout transform matrix.

Returns

Number — The x coordinate of the element's bounds at the specified element size.

getBoundsYAtSize

()

method

override public function getBoundsYAtSize(width:Number, height:Number, postLayoutTransform:Boolean = true):Number

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Returns the y coordinate of the element's bounds at the specified element size. This method is typically used by layouts during a call to the measure() to predict what the element position will be, if the element is resized to particular dimensions.

Parameters

	`width:Number` — The element's bounds width, or NaN to use the preferred width.

	`height:Number` — The element's bounds height, or NaN to use the preferred height.

	`postLayoutTransform:Boolean` (default = `true`) — When `postLayoutTransform` is true, the method returns the y coordinate of the element's bounding box top-left corner. The bounding box is in element's parent coordinate space and is calculated from the specified bounds size, layout position and layout transform matrix.

Returns

Number — The y coordinate of the element's bounds at the specified element size.

invalidateDisplayObjectSharing

()

method

override protected function invalidateDisplayObjectSharing():void

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Utility method that notifies the host that this element has changed and needs its layer to be updated.

measure

()

method

override protected function measure():void

Language Version :

ActionScript 3.0

Product Version :

Flex 4

Runtime Versions :

Flash Player 10, AIR 1.5

Calculates the default size of the element. This is an advanced method that you might override when creating a subclass of GraphicElement.

You do not call this method directly. Flex calls the measure() method when the element is added to an IGraphicElementContainer container such as Group using the addElement() method, and when the element's invalidateSize() method is called.

By default you set both explicit height and explicit width of an element, Flex does not call the measure() method, even if you explicitly call the invalidateSize() method. To override this behavior, override skipMeasure() method.

In your override of this method, you must set the measuredWidth and measuredHeight properties to define the default size. You can optionally set the measuredX and measuredY properties to define the default measured bounds top-left corner relative to the origin of the element.

The conceptual point of measure() is for the element to provide its own natural or intrinsic bounds as a default. Therefore, the measuredWidth and measuredHeight properties should be determined by factors such as:

The amount of text the component needs to display.
The size of a JPEG image that the component displays.

In some cases, there is no intrinsic way to determine default values. For example, a simple GreenCircle element might simply set measuredWidth = 100 and measuredHeight = 100 in its measure() method to provide a reasonable default size. In other cases, such as a TextArea, an appropriate computation (such as finding the right width and height that would just display all the text and have the aspect ratio of a Golden Rectangle) might be too time-consuming to be worthwhile.

The default implementation of measure() sets the values of the measuredWidth, measuredHeight, measuredX, and measuredY properties to 0.

Examples

ArrowExample.mxml

<?xml version="1.0" encoding="utf-8"?>
<!--

  Licensed to the Apache Software Foundation (ASF) under one or more
  contributor license agreements.  See the NOTICE file distributed with
  this work for additional information regarding copyright ownership.
  The ASF licenses this file to You under the Apache License, Version 2.0
  (the "License"); you may not use this file except in compliance with
  the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing, software
  distributed under the License is distributed on an "AS IS" BASIS,
  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  See the License for the specific language governing permissions and
  limitations under the License.

-->
<!-- ArrowExample.mxml -->
<s:Application name="ArrowExample"
        xmlns:fx="http://ns.adobe.com/mxml/2009"
        xmlns:s="library://ns.adobe.com/flex/spark"
        xmlns:mx="library://ns.adobe.com/flex/mx">

    <s:Panel title="Arrow Graphic Example"
            width="75%" height="75%"
            horizontalCenter="0" verticalCenter="0">
        <s:Group left="10" right="10" top="10" bottom="10">
            
            <s:Graphic x="100" y="0">
                <!-- Use Use compact syntax with absolute coordinates. -->
                <s:Path data="M 20 0 
                        C 50 0 50 35 20 35
                        L 15 35 
                        L 15 45 
                        L 0 32 
                        L 15 19 
                        L 15 29 
                        L 20 29 
                        C 44 29 44 6 20 6">
                    <!-- Define the border color of the arrow. -->
                    <s:stroke>
                        <s:SolidColorStroke color="0x888888"/>
                    </s:stroke>
                    <!-- Define the fill for the arrow. -->
                    <s:fill>
                        <s:LinearGradient rotation="90">
                            <s:GradientEntry color="0x000000" alpha="0.8"/>
                            <s:GradientEntry color="0xFFFFFF" alpha="0.8"/>
                        </s:LinearGradient>
                    </s:fill>
                </s:Path>
            </s:Graphic>

            <s:Graphic x="200" y="0">
                <!-- Use compact syntax with relative coordinates. -->
                <s:Path data="m 20 0 
                        c 30 0 30 35 0 35 
                        l -5 0
                        l 0 10
                        l -15 -13
                        l 15 -13
                        l 0 10
                        l 5 0
                        c 24 0 24 -23 0 -23">
                    <!-- Define the border color of the arrow. -->
                    <s:stroke>
                        <s:SolidColorStroke color="0x888888"/>
                    </s:stroke>
                    <!-- Define the fill for the arrow. -->
                    <s:fill>
                        <s:LinearGradient rotation="90">
                            <s:GradientEntry color="0x000000" alpha="0.8"/>
                            <s:GradientEntry color="0xFFFFFF" alpha="0.8"/>
                        </s:LinearGradient>
                    </s:fill>
                </s:Path>
            </s:Graphic>
        </s:Group>
    </s:Panel>

</s:Application>

Wed Nov 15 2017, 09:50 AM +01:00

Apache Flex 4.16.1 API Reference	All Packages \| All Classes \| Index \| Frames No Frames
Path	Properties \| Methods \| Examples

Package	spark.primitives
Class	public class Path
Inheritance	Path FilledElement StrokedElement GraphicElement flash.events.EventDispatcher