flash.display.GraphicsTrianglePath - Adobe® Flex® 4 Language Reference (Flex 4)

Package	flash.display
Class	public final class GraphicsTrianglePath
Inheritance	GraphicsTrianglePath Object
Implements	IGraphicsPath, IGraphicsData

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

Defines an ordered set of triangles that can be rendered using either (u,v) fill coordinates or a normal fill. Each triangle in the path is represented by three sets of (x, y) coordinates, each of which is one point of the triangle.

The triangle vertices do not contain z coordinates and do not necessarily represent 3D faces. However a triangle path can be used to support the rendering of 3D geometry in a 2D space.

See also

flash.display.Graphics.drawTriangles()

Public Properties

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	Property		Defined By
		constructor : Object A reference to the class object or constructor function for a given object instance.	Object
		culling : String Specifies whether to render triangles that face in a given direction.	GraphicsTrianglePath
		indices : Vector.<int> A Vector of integers or indexes, where every three indexes define a triangle.	GraphicsTrianglePath
		prototype : Object [static] A reference to the prototype object of a class or function object.	Object
		uvtData : Vector.<Number> A Vector of normalized coordinates used to apply texture mapping.	GraphicsTrianglePath
		vertices : Vector.<Number> A Vector of Numbers where each pair of numbers is treated as a point (an x, y pair).	GraphicsTrianglePath

Public Methods

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	Method		Defined By
		GraphicsTrianglePath(vertices:Vector.<Number> = null, indices:Vector.<int> = null, uvtData:Vector.<Number> = null, culling:String = "none") Creates a new GraphicsTrianglePath object.	GraphicsTrianglePath
		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
		propertyIsEnumerable(name:String):Boolean Indicates whether the specified property exists and is enumerable.	Object
		setPropertyIsEnumerable(name:String, isEnum:Boolean = true):void Sets the availability of a dynamic property for loop operations.	Object
		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

Property Detail

culling

property

culling:String

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

Specifies whether to render triangles that face in a given direction. Used to prevent the rendering of triangles that cannot be seen in the current view.

Can be set to any value defined by the TriangleCulling class.

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

indices

property

public var indices:Vector.<int>

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

A Vector of integers or indexes, where every three indexes define a triangle. If the indexes parameter is null then every three vertices (six x,y pairs in the vertices Vector) defines a triangle. Otherwise each index refers to a vertex, which is a pair of numbers in the vertices Vector. For example indexes[1] refers to (vertices[2], vertices[3]).

uvtData

property

public var uvtData:Vector.<Number>

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

A Vector of normalized coordinates used to apply texture mapping. Each coordinate refers to a point on the bitmap used for the fill. There must be one UV or one UVT coordinate per vertex.

In UV coordinates, (0,0) is the upper left of the bitmap, and (1,1) is the lower right of the bitmap.

If the length of this vector is twice the length of the vertices vector then normalized coordinates are used without perspective correction.

If the length of this vector is three times the length of the vertices vector then the third coordinate is interpreted as 't', the distance from the eye to the texture in eye space. This helps the rendering engine correctly apply perspective when mapping textures in 3D.

vertices

property

public var vertices:Vector.<Number>

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

A Vector of Numbers where each pair of numbers is treated as a point (an x, y pair).

Constructor Detail

GraphicsTrianglePath

()

Constructor

public function GraphicsTrianglePath(vertices:Vector.<Number> = null, indices:Vector.<int> = null, uvtData:Vector.<Number> = null, culling:String = "none")

Language Version:

ActionScript 3.0

Runtime Versions:

Flash Player 10, AIR 1.5

Creates a new GraphicsTrianglePath object.

Parameters

	`vertices:Vector.<Number>` (default = `null`) — A Vector of Numbers where each pair of numbers is treated as a point (an x, y pair). Required.

	`indices:Vector.<int>` (default = `null`) — A Vector of integers or indexes, where every three indexes define a triangle.

	`uvtData:Vector.<Number>` (default = `null`) — A Vector of normalized coordinates used to apply texture mapping.

	`culling:String` (default = "`none`") — Specifies whether to render triangles that face in a given direction. Used to prevent the rendering of triangles that cannot be seen in the current view. Can be set to any value defined by the TriangleCulling class.