| Package | starling.display |
| Class | public class Quad |
| Inheritance | Quad  Mesh DisplayObject EventDispatcher Object |
| Subclasses | Image |
Quads may have a color and a texture. When assigning a texture, the colors of the vertices will "tint" the texture, i.e. the vertex color will be multiplied with the color of the texture at the same position. That's why the default color of a quad is pure white: tinting with white does not change the texture color (that's a multiplication with one).
A quad is, by definition, always rectangular. The basic quad class will always contain exactly four vertices, arranged like this:
0 - 1
| / |
2 - 3
You can set the color of each vertex individually; and since the colors will smoothly fade into each other over the area of the quad, you can use this to create simple linear color gradients (e.g. by assigning one color to vertices 0 and 1 and another to vertices 2 and 3).
However, note that the number of vertices may be different in subclasses.
Check the property numVertices if you are unsure.
See also
| Property | Defined By | ||
|---|---|---|---|
 | alpha : Number The opacity of the object. | DisplayObject | |
| base : DisplayObject [read-only] The topmost object in the display tree the object is part of. | DisplayObject | |
| blendMode : String The blend mode determines how the object is blended with the objects underneath. | DisplayObject | |
| bounds : Rectangle [read-only] The bounds of the object relative to the local coordinates of the parent. | DisplayObject | |
| color : uint Changes the color of all vertices to the same value. | Mesh | |
| defaultStyle : Class [static] The default style used for meshes if no specific style is provided. | Mesh | |
| defaultStyleFactory : Function [static] A factory method that is used to create the 'MeshStyle' for a mesh if no specific
style is provided. | Mesh | |
| filter : FragmentFilter The filter that is attached to the display object. | DisplayObject | |
| height : Number The height of the object in pixels. | DisplayObject | |
| is3D : Boolean [read-only] Indicates if this object or any of its parents is a 'Sprite3D' object. | DisplayObject | |
| mask : DisplayObject The display object that acts as a mask for the current object. | DisplayObject | |
| name : String The name of the display object (default: null). | DisplayObject | |
| numIndices : int [read-only] The total number of indices referencing vertices. | Mesh | |
| numTriangles : int [read-only] The total number of triangles in this mesh. | Mesh | |
| numVertices : int [read-only] The total number of vertices in the mesh. | Mesh | |
| parent : DisplayObjectContainer [read-only] The display object container that contains this display object. | DisplayObject | |
| pivotX : Number The x coordinate of the object's origin in its own coordinate space (default: 0). | DisplayObject | |
| pivotY : Number The y coordinate of the object's origin in its own coordinate space (default: 0). | DisplayObject | |
| pixelSnapping : Boolean Controls whether or not the instance snaps to the nearest pixel. | Mesh | |
| requiresRedraw : Boolean [read-only] Indicates if the object needs to be redrawn in the upcoming frame, i.e. | DisplayObject | |
| root : DisplayObject [read-only] The root object the display object is connected to (i.e. | DisplayObject | |
| rotation : Number The rotation of the object in radians. | DisplayObject | |
| scale : Number Sets both 'scaleX' and 'scaleY' to the same value. | DisplayObject | |
| scaleX : Number The horizontal scale factor. | DisplayObject | |
| scaleY : Number The vertical scale factor. | DisplayObject | |
| skewX : Number The horizontal skew angle in radians. | DisplayObject | |
| skewY : Number The vertical skew angle in radians. | DisplayObject | |
| stage : Stage [read-only] The stage the display object is connected to, or null if it is not connected
to the stage. | DisplayObject | |
| style : MeshStyle The style that is used to render the mesh. | Mesh | |
| texture : Texture [override] The texture that is mapped to the quad (or null, if there is none). | Quad | ||
| textureRepeat : Boolean Indicates if pixels at the edges will be repeated or clamped. | Mesh | |
| textureSmoothing : String The smoothing filter that is used for the texture. | Mesh | |
| touchable : Boolean Indicates if this object (and its children) will receive touch events. | DisplayObject | |
| transformationMatrix : Matrix The transformation matrix of the object relative to its parent. | DisplayObject | |
| transformationMatrix3D : Matrix3D [read-only] The 3D transformation matrix of the object relative to its parent. | DisplayObject | |
| useHandCursor : Boolean Indicates if the mouse cursor should transform into a hand while it's over the sprite. | DisplayObject | |
| vertexFormat : VertexDataFormat [read-only] The format used to store the vertices. | Mesh | |
| visible : Boolean The visibility of the object. | DisplayObject | |
| width : Number The width of the object in pixels. | DisplayObject | |
| x : Number The x coordinate of the object relative to the local coordinates of the parent. | DisplayObject | |
| y : Number The y coordinate of the object relative to the local coordinates of the parent. | DisplayObject | |
| Method | Defined By | ||
|---|---|---|---|
Quad(width:Number, height:Number, color:uint = 0xffffff) Creates a quad with a certain size and color. | Quad | ||
| addEventListener(type:String, listener:Function):void [override] Registers an event listener at a certain object. | DisplayObject | |
| alignPivot(horizontalAlign:String = center, verticalAlign:String = center):void Moves the pivot point to a certain position within the local coordinate system
of the object. | DisplayObject | |
| dispatchEvent(event:Event):void Dispatches an event to all objects that have registered listeners for its type. | EventDispatcher | |
| dispatchEventWith(type:String, bubbles:Boolean = false, data:Object = null):void Dispatches an event with the given parameters to all objects that have registered
listeners for the given type. | EventDispatcher | |
| dispose():void [override] Disposes all resources of the display object. | Mesh | |
| [static] Creates a mesh from the specified polygon. | Mesh | |
[static] Creates a quad from the given texture. | Quad | ||
getBounds(targetSpace:DisplayObject, out:Rectangle = null):Rectangle [override] Returns a rectangle that completely encloses the object as it appears in another
coordinate system. | Quad | ||
| getTexCoords(vertexID:int, out:Point = null):Point Returns the texture coordinates of the vertex at the specified index. | Mesh | |
| getTransformationMatrix(targetSpace:DisplayObject, out:Matrix = null):Matrix Creates a matrix that represents the transformation from the local coordinate system
to another. | DisplayObject | |
| getTransformationMatrix3D(targetSpace:DisplayObject, out:Matrix3D = null):Matrix3D Creates a matrix that represents the transformation from the local coordinate system
to another. | DisplayObject | |
| getVertexAlpha(vertexID:int):Number Returns the alpha value of the vertex at the specified index. | Mesh | |
| getVertexColor(vertexID:int):uint Returns the RGB color of the vertex at the specified index. | Mesh | |
| getVertexPosition(vertexID:int, out:Point = null):Point The position of the vertex at the specified index, in the mesh's local coordinate
system. | Mesh | |
| globalToLocal(globalPoint:Point, out:Point = null):Point Transforms a point from global (stage) coordinates to the local coordinate system. | DisplayObject | |
| globalToLocal3D(globalPoint:Point, out:Vector3D = null):Vector3D Transforms a point from global (stage) coordinates to the 3D local coordinate system. | DisplayObject | |
| hasEventListener(type:String, listener:Function = null):Boolean If called with one argument, figures out if there are any listeners registered for
the given event type. | EventDispatcher | |
hitTest(localPoint:Point):DisplayObject [override] Returns the object that is found topmost beneath a point in local coordinates, or nil
if the test fails. | Quad | ||
| hitTestMask(localPoint:Point):Boolean Checks if a certain point is inside the display object's mask. | DisplayObject | |
| local3DToGlobal(localPoint:Vector3D, out:Point = null):Point Transforms a 3D point from the local coordinate system to global (stage) coordinates. | DisplayObject | |
| localToGlobal(localPoint:Point, out:Point = null):Point Transforms a point from the local coordinate system to global (stage) coordinates. | DisplayObject | |
readjustSize(width:Number = -1, height:Number = -1):void Readjusts the dimensions of the quad. | Quad | ||
| removeEventListener(type:String, listener:Function):void [override] Removes an event listener from the object. | DisplayObject | |
| removeEventListeners(type:String = null):void [override] Removes all event listeners with a certain type, or all of them if type is null. | DisplayObject | |
| removeFromParent(dispose:Boolean = false):void Removes the object from its parent, if it has one, and optionally disposes it. | DisplayObject | |
| [override] Renders the display object with the help of a painter object. | Mesh | |
| setIndexDataChanged():void This method is called whenever the mesh's index data was changed. | Mesh | |
| setRequiresRedraw():void Forces the object to be redrawn in the next frame. | DisplayObject | |
| Sets the style that is used to render the mesh. | Mesh | |
| setTexCoords(vertexID:int, u:Number, v:Number):void Sets the texture coordinates of the vertex at the specified index to the given values. | Mesh | |
| setVertexAlpha(vertexID:int, alpha:Number):void Sets the alpha value of the vertex at the specified index to a certain value. | Mesh | |
| setVertexColor(vertexID:int, color:uint):void Sets the RGB color of the vertex at the specified index to a certain value. | Mesh | |
| setVertexDataChanged():void This method is called whenever the mesh's vertex data was changed. | Mesh | |
| setVertexPosition(vertexID:int, x:Number, y:Number):void | Mesh | |
| Method | Defined By | ||
|---|---|---|---|
setupVertices():void Sets up vertex- and index-data according to the current settings. | Quad | ||
| texture | property |
Hide Inherited Public Properties
Show Inherited Public Propertiestexture:Texture[override] The texture that is mapped to the quad (or null, if there is none).
Per default, it is mapped to the complete quad, i.e. to the complete area between the
top left and bottom right vertices. This can be changed with the
setTexCoords-method.
Note that the size of the quad will not change when you assign a texture, which
means that the texture might be distorted at first. Call readjustSize to
synchronize quad and texture size.
You could also set the texture via the style.texture property.
That way, however, the texture frame won't be taken into account. Since only rectangular
objects can make use of a texture frame, only a property on the Quad class can do that.
public function get texture():Texture public function set texture(value:Texture):void| Quad | () | Constructor |
public function Quad(width:Number, height:Number, color:uint = 0xffffff)Creates a quad with a certain size and color.
Parameterswidth:Number | |
height:Number | |
color:uint (default = 0xffffff) |
| fromTexture | () | method |
public static function fromTexture(texture:Texture):QuadCreates a quad from the given texture. The quad will have the same size as the texture.
Parameters
texture:Texture |
Quad |
| getBounds | () | method |
override public function getBounds(targetSpace:DisplayObject, out:Rectangle = null):Rectangle Returns a rectangle that completely encloses the object as it appears in another
coordinate system. If you pass an out-rectangle, the result will be
stored in this rectangle instead of creating a new object.
Parameters
targetSpace:DisplayObject | |
out:Rectangle (default = null) |
Rectangle |
| hitTest | () | method |
override public function hitTest(localPoint:Point):DisplayObjectReturns the object that is found topmost beneath a point in local coordinates, or nil if the test fails. Untouchable and invisible objects will cause the test to fail.
Parameters
localPoint:Point |
DisplayObject |
| readjustSize | () | method |
public function readjustSize(width:Number = -1, height:Number = -1):voidReadjusts the dimensions of the quad. Use this method without any arguments to synchronize quad and texture size after assigning a texture with a different size. You can also force a certain width and height by passing positive, non-zero values for width and height.
Parameters
width:Number (default = -1) | |
height:Number (default = -1) |
| setupVertices | () | method |
protected function setupVertices():voidSets up vertex- and index-data according to the current settings.