Mesh class - stagexl library

The Mesh class allows free form deformations of a BitmapData instance by using triangles to form an arbitrary shape.

The vertices of the triangles are shared between different triangles. Therefore you should define the vertices first and afterwards define the triangles with the index number of the vertices. Each triangle needs three indices, so the number of indices is three times the number of triangles.

To get a better understanding, let's take a look at two simple meshes: The left mesh uses 9 vertices and 8 triangles (24 indices). The right mesh uses 7 vertices and 6 triangles (18 indices).

0─────1─────2          0───────1
│   / │   / │         / \     / \
│  /  │  /  │        /   \   /   \
│ /   │ /   │       /     \ /     \
3─────4─────5      5───────6───────2
│   / │   / │       \     / \     /
│  /  │  /  │        \   /   \   /
│ /   │ /   │         \ /     \ /
6─────7─────8          4───────3

Use the setVertex and setTriangleIndices methods to form the mesh. A vertex is defined by the XY and UV values. The XY values define the position of the vertex in the local coordinate system of the Display Object. The UV values define the pixel location in a 0.0 to 1.0 coordinate system of the BitmapData.

Inheritance

Constructors

Mesh(BitmapData bitmapData, int vertexCount, int triangleCount): Create a new Mesh with vertexCount vertices and triangleCount triangles.
Mesh.fromGrid(BitmapData bitmapData, int columns, int rows): Create a new grid shaped Mesh with the desired number of columns and rows. A 2x2 grid will create 9 vertices.

factory

Properties

alpha → num: The alpha transparency value of the object specified.

read / write, inherited
bitmapData → BitmapData: read / write
blendMode → BlendMode: A value from the BlendMode class that specifies which blend mode to use.

read / write, inherited
bounds → Rectangle<num>: read-only
boundsTransformed → Rectangle<num>: Returns a rectangle that defines the area of this display object in this display object's parent coordinates.

read-only, inherited
cache → RenderTextureQuad: This getter gives you access to the underlying RenderTextureQuad if a cache is applied to this display object. If no cache is applied this value is ´null´.

read-only, inherited
displayObjectID → int: read-only, inherited
filters → List<BitmapFilter>: The filters currently associated with this display object.

read / write, inherited
globalTransformationMatrix → Matrix: The global 2D transformation matrix of this display object.

read-only, inherited
globalTransformationMatrix3D → Matrix3D: The global 3D transformation matrix of this display object.

read-only, inherited
hashCode → int: Get a hash code for this object.

read-only, inherited
height → num: The height of this display object with the applied transformation.

read / write, inherited
indexCount → int: read-only
ixList → Int16List: read-only
mask → Mask: The calling display object is masked by the specified mask object.

read / write, inherited
mousePosition → Point<num>: The position of the mouse relative to the local coordinate system of the display object.

read-only, inherited
mouseX → num: The x-coordinate of the mouse relative to the local coordinate system of the display object.

read-only, inherited
mouseY → num: The y-coordinate of the mouse relative to the local coordinate system of the display object.

read-only, inherited
name → String: The instance name of this display object.

read / write, inherited
off → bool: The availability and visibility of the display object.

read / write, inherited
onAdded → EventStream<Event>: Dispatched when a display object is added to the display list.

read-only, inherited
onAddedToStage → EventStream<Event>: Dispatched when a display object is added to the on stage display list, either directly or through the addition of a sub tree in which the display object is contained.

read-only, inherited
onEnterFrame → EventStream<EnterFrameEvent>: Dispatched when a frame is entered.

read-only, inherited
onExitFrame → EventStream<ExitFrameEvent>: Dispatched when a frame is exited. All frame scripts have been run.

read-only, inherited
onRemoved → EventStream<Event>: Dispatched when a display object is about to be removed from the display list.

read-only, inherited
onRemovedFromStage → EventStream<Event>: Dispatched when a display object is about to be removed from the display list, either directly or through the removal of a sub tree in which the display object is contained.

read-only, inherited
onRender → EventStream<RenderEvent>: Dispatched when the display list is about to be updated and rendered.

read-only, inherited
parent → DisplayObjectParent: The DisplayObjectContainer object that contains this display object.

read-only, inherited
pivotX → num: The x-coordinate of the pivot point of this display object.

read / write, inherited
pivotY → num: The y-coordinate of the pivot point of this display object.

read / write, inherited
root → DisplayObject: The top-most display object in the portion of the display list's tree structure.

read-only, inherited
rotation → num: The rotation of this display object, in radians, from its original orientation.

read / write, inherited
runtimeType → Type: A representation of the runtime type of the object.

read-only, inherited
scaleX → num: The horizontal scale (percentage) of the object as applied from the pivot point.

read / write, inherited
scaleY → num: The vertical scale (percentage) of the object as applied from the pivot point.

read / write, inherited
skewX → num: The horizontal skew of this object.

read / write, inherited
skewY → num: The vertical skew of this object.

read / write, inherited
stage → Stage: The Stage of this display object.

read-only, inherited
transformationMatrix → Matrix: The transformation matrix of this display object relative to this display object's parent.

read-only, inherited
triangleCount → int: read-only
userData → dynamic: The user-defined data associated with this display object.

read / write, inherited
vertexCount → int: read-only
visible → bool: The visibility and availability of the display object.

read / write, inherited
vxList → Float32List: read-only
width → num: The width of this display object with the applied transformation.

read / write, inherited
x → num: The x-coordinate of is display object relative to the local coordinates of the parent DisplayObjectContainer.

read / write, inherited
y → num: The y-coordinate of this display object relative to the local coordinates of the parent DisplayObjectContainer.

read / write, inherited

Operators

operator ==(other) → bool: The equality operator.

inherited

Methods

addEventListener(String eventType, EventListener eventListener, { bool useCapture: false, int priority: 0 }) → StreamSubscription<Event>: Adds an event listener to receive events.

inherited
addTo(DisplayObjectParent parent) → void: Add this display object to the specified parent.

inherited
alignPivot([HorizontalAlign hAlign = HorizontalAlign.Center, VerticalAlign vAlign = VerticalAlign.Center ]) → void: Aligns the display object's pivot point relative to the current bounds.

inherited
applyCache(num x, num y, num width, num height, { bool debugBorder: false, num pixelRatio: 1.0 }) → void: Draws the specified area of this display object to an internal render texture and the engine will use this texture to optimize performance.

inherited
dispatchEvent(Event event) → void: Dispatches the event to all listening subscribers.

inherited
dispatchEventRaw(Event event, EventDispatcher target, EventPhase eventPhase) → void: Do not use the dispatchEventRaw method unless you want to override the way how events are dispatched for display list object. Please use dispatchEvent instead.

inherited
getBounds(DisplayObject targetSpace) → Rectangle<num>: Returns the bounds of this display object relative to the specified targetSpace.

inherited
getTransformationMatrix(DisplayObject targetSpace) → Matrix: The 2D transformation matrix relative to the given targetSpace.

inherited
getTransformationMatrix3D(DisplayObject targetSpace) → Matrix3D: The 3D transformation matrix relative to the given targetSpace.

inherited
globalToLocal(Point<num> globalPoint, [ Point<num> returnPoint ]) → Point<num>: Converts the point object from the Stage's global coordinates to this display object's local coordinates.

inherited
hasEventListener(String eventType, { bool useCapture: false }) → bool: Returns true if the EventDispatcher has event listeners. The useCapture paramenter defines if the event listeners should be registered for the capturing event phase or not.

inherited
hitTestInput(num localX, num localY) → DisplayObject: Evaluates this display object to see if the coordinates localX and localY are inside this display object.
hitTestObject(DisplayObject other) → bool: Evaluates this display object to see if it overlaps or intersects with the bounding box of the other display object.

inherited
hitTestPoint(num x, num y, [ bool shapeFlag = false ]) → bool: Evaluates this display object to see if it overlaps or intersects with the point specified by the x and y parameters.

inherited
localToGlobal(Point<num> localPoint, [ Point<num> returnPoint ]) → Point<num>: Converts the point object from this display object's local coordinates to the Stage global coordinates.

inherited
localToParent(Point<num> localPoint, [ Point<num> returnPoint ]) → Point<num>: Converts the point object from this display object's local coordinates to this display object's parent coordinates.

inherited
noSuchMethod(Invocation invocation) → dynamic: Invoked when a non-existent method or property is accessed.

inherited
on<T extends Event>(String eventType) → EventStream<T>: Returns an event stream of type eventType.

inherited
parentToLocal(Point<num> parentPoint, [ Point<num> returnPoint ]) → Point<num>: Converts the point object from this display obejct's parent coordinates to this display object's local coordinates.

inherited
refreshCache() → void: Refreshes the cached area of this display object.

inherited
removeCache() → void: Removes the previously cached area of this display object.

inherited
removeEventListener(String eventType, EventListener eventListener, { bool useCapture: false }) → void: Removes an event listener to stop receiving events.

inherited
removeEventListeners(String eventType) → void: Removes all event listeners of a given event type.

inherited
removeFromParent() → void: Removes this display object from its parent.

inherited
render(RenderState renderState) → void: Renders this display object with the given renderState. The display object is rendered without its filters.
renderFiltered(RenderState renderState) → void: Renders this display object with the given renderState. The display object is rendered with its filters.

inherited
setIndex(int index, int vertex) → void: Set the corresponding vertex for an index.
setTransform(num x, num y, [ num scaleX, num scaleY, num rotation, num skewX, num skewY, num pivotX, num pivotY ]) → void: Sets transformation properties.

inherited
setTriangleIndices(int triangle, int v1, int v2, int v3) → void: Set the corresponding vertices for the triangle indices.
setVertex(int vertex, num x, num y, num u, num v) → void: Set the XY and UV values of a vertex.
setVertexUV(int vertex, num u, num v) → void: Set the UV values of a vertex.
setVertexXY(int vertex, num x, num y) → void: Set the XY values of a vertex.
toString() → String: Returns a string representation of this object.

inherited