Class Arc

Represents an arc figure, a subclass of the Figure class.

Hierarchy (view full)

Figure
- Arc
  - Circle

Index

Constructors

constructor

new Arc(radius, from, to, options?): Arc
Constructs a new Arc instance.
Parameters
- radius: number
  The radius of the arc.
- from: number
  The starting angle of the arc in radians.
- to: number
  The ending angle of the arc in radians.
- Optional options: FigureOptions
  Optional configuration options for the arc.
Returns Arc
Overrides Figure.constructor
- Defined in basic/src/widgets/figures/arc.ts:20

Properties

animationInstances

animationInstances: AnimationInstance<Widget>[] = []

centerX

centerX: number

centerY

centerY: number

children

children: Widget[] = []

The child-widgets of the widget.

display

display: boolean = true

eventInstances

eventInstances: EventInstance<Widget>[] = []

fillPaint

fillPaint: Paint

from

from: number

The starting angle of the arc in radians.

hasSet

hasSet: boolean = false

isImplemented

isImplemented: boolean = false

key

key: string = ...

last

last: Widget = ...

parent

parent: Widget

plugins

plugins: WidgetPlugin[] = []

progress

progress: number

radius

radius: number

The radius of the arc.

`Private` rect

rect: Float32Array

setups

setups: {
    generator: Generator<number | {
        animation: Animation<any>;
        duration: number;
        mode: "async" | "sync";
        params: Record<string, any>;
        setAsync: (() => { animation: Animation<any>; mode: "async" | "sync"; duration: number; params: Record<string, any>; setAsync: () => ...; setSync: () => ...; });
        setSync: (() => { animation: Animation<any>; mode: "async" | "sync"; duration: number; params: Record<string, any>; setAsync: () => ...; setSync: () => ...; });
    }, void, unknown>;
    nextFrame: number;
}[] = []

Type declaration

generator: Generator<number | {
    animation: Animation<any>;
    duration: number;
    mode: "async" | "sync";
    params: Record<string, any>;
    setAsync: (() => { animation: Animation<any>; mode: "async" | "sync"; duration: number; params: Record<string, any>; setAsync: () => ...; setSync: () => ...; });
    setSync: (() => { animation: Animation<any>; mode: "async" | "sync"; duration: number; params: Record<string, any>; setAsync: () => ...; setSync: () => ...; });
}, void, unknown>
nextFrame: number

strokePaint

strokePaint: Paint

style

style: FigureStyle

to

to: number

The ending angle of the arc in radians.

updates

updates: ((elapsed, widget) => void)[] = []

Type declaration

- (elapsed, widget): void
- Parameters
  - elapsed: number
  - widget: Widget
  Returns void

x

x: number

y

y: number

Accessors

range

get range(): WidgetRange
Returns WidgetRange
Overrides Figure.range
- Defined in basic/src/widgets/figures/arc.ts:160

Methods

_isAsyncWidget

_isAsyncWidget(): boolean
Returns boolean
Inherited from Figure._isAsyncWidget
- Defined in core/src/widget.ts:353

add

add(...children): this
Add children widgets for the widget.
Parameters
- Rest ...children: Widget[] | ((parent) => Widget)[]
  The added children.
Returns this
Inherited from Figure.add
- Defined in core/src/widget.ts:156

animate

animate(animation, startAt, during, params?): this
Parameters
- animation: Animation<any>
- startAt: number
- during: number
- Optional params: Record<string, any>
Returns this
Inherited from Figure.animate
- Defined in core/src/widget.ts:196

animateTree

animateTree(tree, startAt): void
Parameters
- tree: AnimationTree
- startAt: number
Returns void
Inherited from Figure.animateTree
- Defined in core/src/widget.ts:227

copy

copy(): this
Returns this
Inherited from Figure.copy
- Defined in core/src/widget.ts:367

draw

draw(canvas): void
Draws the arc figure on the canvas.
Parameters
- canvas: Canvas
  The canvas to draw on.
Returns void
Overrides Figure.draw
- Defined in basic/src/widgets/figures/arc.ts:124

hide

hide(): this
Returns this
Inherited from Figure.hide
- Defined in core/src/widget.ts:362

init

init(ck): void
Initializes the arc figure.
Parameters
- ck: CanvasKit
  The CanvasKit instance.
Returns void
Overrides Figure.init
- Defined in basic/src/widgets/figures/arc.ts:33

isIn

isIn(x, y): boolean
Checks if a point is inside the arc.
Parameters
- x: number
  The x-coordinate of the point.
- y: number
  The y-coordinate of the point.
Returns boolean
True if the point is inside the arc, otherwise false.
Overrides Figure.isIn
- Defined in basic/src/widgets/figures/arc.ts:151

on

on(event, effect): this
Parameters
- event: Event<Widget>
- effect: ((widget, ...args) => any)
  - - (widget, ...args): any
    - Parameters
      widget: Widget
      Rest ...args: any[]
      Returns any
Returns this
Inherited from Figure.on
- Defined in core/src/widget.ts:214

predraw

predraw(ck, propertyChanged?): void
Updates the arc figure based on property changes.
Parameters
- ck: CanvasKit
  The CanvasKit instance.
- Optional propertyChanged: string
  The name of the property that changed.
Returns void
Overrides Figure.predraw
- Defined in basic/src/widgets/figures/arc.ts:76

preupdate

preupdate(ck, propertyChanged?): void
Called when the parameters is changed.
Parameters
- ck: CanvasKit
  The namespace of CanvasKit-WASM.
- Optional propertyChanged: string
Returns void
Inherited from Figure.preupdate
- Defined in core/src/widget.ts:130

processSetups

processSetups(elapsed): void
Parameters
- elapsed: number
Returns void
Inherited from Figure.processSetups
- Defined in core/src/widget.ts:317

runAnimation

runAnimation(elapsed): void
Parameters
- elapsed: number
Returns void
Inherited from Figure.runAnimation
- Defined in core/src/widget.ts:232

setEventListener

setEventListener(element): void
Parameters
- element: HTMLCanvasElement
Returns void
Inherited from Figure.setEventListener
- Defined in core/src/widget.ts:265

setUpdate

setUpdate(updateFunc): this
Set up a update function to call it when the widget is changed.
Parameters
- updateFunc: ((elapsed, widget) => void)
  The frame from having gone to current frame.
  - - (elapsed, widget): void
    - Parameters
      elapsed: number
      widget: Widget
      Returns void
Returns this
Inherited from Figure.setUpdate
- Defined in core/src/widget.ts:277

setup

setup<T>(setupFunc): this
Type Parameters
- T extends Widget
Parameters
- setupFunc: SetupFunction<T>
Returns this
Inherited from Figure.setup
- Defined in core/src/widget.ts:283

show

show(): this
Returns this
Inherited from Figure.show
- Defined in core/src/widget.ts:357

update

update(canvas): void
Update the object according to the style of the widget. Called when the style is changed.
Parameters
- canvas: Canvas
  The canvas object of CanvasKit-WASM.
Returns void
Inherited from Figure.update
- Defined in core/src/widget.ts:139

use

use(...plugins): void
Parameters
- Rest ...plugins: WidgetPlugin[]
Returns void
Inherited from Figure.use
- Defined in core/src/widget.ts:349

`Static` absoluteToRelative

absoluteToRelative(widget, x, y): {
x: number;
y: number;
}
Parameters
- widget: Widget
- x: number
- y: number
Returns {
x: number;
y: number;
}
- x: number
- y: number
Inherited from Figure.absoluteToRelative
- Defined in core/src/widget.ts:402

`Static` getAbsoluteCoordinates

getAbsoluteCoordinates(widget): {
x: number;
y: number;
}
Parameters
- widget: Widget
Returns {
x: number;
y: number;
}
- x: number
- y: number
Inherited from Figure.getAbsoluteCoordinates
- Defined in core/src/widget.ts:380

Class Arc

Hierarchy (view full)

Index

Constructors

Properties

Accessors

Methods

Constructors

constructor

Parameters

Returns Arc

Properties

animationInstances

centerX

centerY

children

display

eventInstances

fillPaint

from

hasSet

isImplemented

key

last

parent

plugins

progress

radius

Private rect

setups

Type declaration

nextFrame: number

strokePaint

style

to

updates

Type declaration

Parameters

Returns void

x

y

Accessors

range

Returns WidgetRange

Methods

_isAsyncWidget

Returns boolean

add

Parameters

Returns this

animate

Parameters

Returns this

animateTree

Parameters

Returns void

copy

Returns this

draw

Parameters

Returns void

hide

Returns this

init

Parameters

Returns void

isIn

Parameters

Returns boolean

on

Parameters

Parameters

Returns any

Returns this

predraw

Parameters

Returns void

preupdate

Parameters

Returns void

`Private` rect

`Static` absoluteToRelative

Returns {
x: number;
y: number;
}

`Static` getAbsoluteCoordinates

Returns {
x: number;
y: number;
}