AWT. Ellipse

The Ellipse shape has the same constructor options as Rectangle

Constructor

new Ellipse(pos, dimopt, wopt, hopt)

Ellipse constructor

Parameters:
NameTypeAttributesDescription
posPoint | Rectangle | number | Array.<number>
dimDimension | number<optional>
wnumber<optional>
hnumber<optional>

Extends

Members

dim :module:AWT.Dimension

The Dimension of the Rectangle

pos :module:AWT.Point

The current position of the shape

type :string

Shape type id

Type:
  • string

Methods

add(shape) → {module:AWT.Rectangle}

Adds the boundaries of another shape to the current one

Parameters:
NameTypeDescription
shapemodule:AWT.Shape

The module:AWT.Shape to be added

Returns:
Type: 
module:AWT.Rectangle

clip(ctx, fillRuleopt) → {external:CanvasRenderingContext2D}

Creates a clipping region on the specified HTML canvas 2D rendering context

Parameters:
NameTypeAttributesDefaultDescription
ctxexternal:CanvasRenderingContext2D

The rendering context

fillRulestring<optional>
'nonzero'

Can be 'nonzero' (default when not set) or 'evenodd'

Returns:
  • The provided rendering context
Type: 
external:CanvasRenderingContext2D

clone() → {module:AWT.Rectangle}

Clones this Rectangle

Returns:
Type: 
module:AWT.Rectangle

contains(_p) → {boolean}

Checks if the provided module:AWT.Point is inside this shape.

Parameters:
NameTypeDescription
_pmodule:AWT.Point

The point to check

Returns:
Type: 
boolean

equals(r) → {boolean}

Checks if two shapes are equivalent.

Parameters:
NameTypeDescription
rmodule:AWT.Shape

The Shape to compare against

Returns:
Type: 
boolean

fill(ctx, dirtyRegionopt) → {external:CanvasRenderingContext2D}

Fills the Shape with the current style in the provided HTML canvas context

Parameters:
NameTypeAttributesDescription
ctxexternal:CanvasRenderingContext2D

The canvas 2D rendering context where to fill this shape.

dirtyRegionmodule:AWT.Rectangle<optional>

The context region to be updated. Used as clipping
region when drawing.

Returns:
  • The provided rendering context
Type: 
external:CanvasRenderingContext2D

getAttributes() → {object}

Gets a object with the basic attributes needed to rebuild this instance excluding functions,
parent references, constants and also attributes retaining the default value.
The resulting object is commonly usued to serialize elements in JSON format.

Returns:
  • The resulting object, with minimal attrributes
Type: 
object

getBounds() → {module:AWT.Rectangle}

Gets the enclosing Rectangle of this Shape.

Returns:
Type: 
module:AWT.Rectangle

getCoords() → {string}

Gets a string with the co-ordinates of the upper-left and lower-right vertexs of this rectangle,
(with values rounded to int)

Returns:
Type: 
string

getOppositeVertex() → {module:AWT.Point}

Gets the module:AWT.Point corresponding to the lower-right vertex of the Rectangle.

Returns:
Type: 
module:AWT.Point

getShape(rect) → {module:AWT.Shape}

Gets a clone of this shape moved to the pos component of the rectangle and scaled
by its dim value.

Parameters:
NameTypeDescription
rectmodule:AWT.Rectangle

The rectangle to be taken as a base for moving and scaling
this shape.

Returns:
Type: 
module:AWT.Shape

grow(dx, dy) → {module:AWT.Rectangle}

Expands the boundaries of this shape. This affects the current position and dimension.

Parameters:
NameTypeDescription
dxnumber

The amount to grow (or decrease) in horizontal direction

dynumber

The amount to grow (or decrease) in vertical direction

Returns:
Type: 
module:AWT.Rectangle

intersects(_r) → {boolean}

Checks if the provided Rectangle r intersects with this shape.

Parameters:
NameTypeDescription
_rmodule:AWT.Rectangle
Returns:
Type: 
boolean

isRect() → {boolean}

Shorthand method for determining if a Shape is an Rectangle

Returns:
Type: 
boolean

moveBy(delta) → {module:AWT.Shape}

Shifts the shape a specified amount in horizontal and vertical directions

Parameters:
NameTypeDescription
deltaPoint | Dimension

The amount to shift the Shape

Returns:
Type: 
module:AWT.Shape

moveTo(newPos) → {module:AWT.Shape}

Moves this shape to a new position

Parameters:
NameTypeDescription
newPosmodule:AWT.Point

The new position of the shape

Returns:
Type: 
module:AWT.Shape

preparePath(ctx) → {external:CanvasRenderingContext2D}

Prepares an HTML canvas 2D rendering context with a path that can be used to stroke a line,
to fill a surface or to define a clipping region.

Parameters:
NameTypeDescription
ctxexternal:CanvasRenderingContext2D
Returns:
  • The provided rendering context
Type: 
external:CanvasRenderingContext2D

scaleBy(delta) → {module:AWT.Rectangle}

Multiplies the dimension of the Shape by the specified delta amount.

Parameters:
NameTypeDescription
deltaPoint | Dimension

Object containing the X and Y ratio to be scaled.

Returns:
Type: 
module:AWT.Rectangle

setAttributes(data) → {module:AWT.Rectangle}

Reads the properties of this Rectangle from a data object

Parameters:
NameTypeDescription
dataobject

The data object to be parsed

Returns:
Type: 
module:AWT.Rectangle

setBounds(rect) → {module:AWT.Rectangle}

Sets this Rectangle the position and dimension of another one

Parameters:
NameTypeDescription
rectmodule:AWT.Rectangle
Returns:
Type: 
module:AWT.Rectangle

stroke(ctx) → {external:CanvasRenderingContext2D}

Draws this shape in the provided HTML canvas 2D rendering context.

Parameters:
NameTypeDescription
ctxexternal:CanvasRenderingContext2D

The canvas 2D rendering context where to draw the shape.

Returns:
  • The provided rendering context
Type: 
external:CanvasRenderingContext2D

toString() → {string}

Overwrites the original 'Object.toString' method with a more descriptive text

Returns:
Type: 
string