Arc

Examples

See these.

Arc

Bases: Shape

Draws an arc scaled to fit inside the given rectangle.

It starts from start_angle radians around the oval up to start_angle + sweep_angle radians around the oval, with zero radians being the point on the right hand side of the oval that crosses the horizontal line that intersects the center of the rectangle and with positive angles going clockwise around the oval. If use_center is True, the arc is closed back to the center, forming a circle sector. Otherwise, the arc is not closed, forming a circle segment.

https://api.flutter.dev/flutter/dart-ui/Canvas/drawArc.html

data

data: Any = skip_field()

Arbitrary data of any type.

height

height: Number = 0

The height of the rectangle containing the arc's oval.

key

key: (
    str | int | float | bool | ValueKey | ScrollKey | None
) = None

page

page: Page | PageView | None

The page (of type Page or PageView) to which this control belongs to.

paint

paint: Paint = field(default_factory=lambda: Paint())

A style to draw an arc with.

parent

parent: BaseControl | None

The direct ancestor(parent) of this control.

It defaults to None and will only have a value when this control is mounted (added to the page tree).

The Page control (which is the root of the tree) is an exception - it always has parent=None.

start_angle

start_angle: Number = 0

The starting angle in radians to draw arc from.

sweep_angle

sweep_angle: Number = 0

The length of the arc in radians.

use_center

use_center: bool = False

Whether this arc is closed back to the center, forming a circle sector. If not closed (False), this arc forms a circle segment.

width

width: Number = 0

The width of the rectangle containing the arc's oval.

x

x: Number

The x-axis coordinate of the arc's top left point.

y

y: Number

The y-axis coordinate of the arc's top left point.

before_event

before_event(e: ControlEvent)

before_update

before_update()

This method is called every time when this control is being updated.

Note

Make sure not to call/request an update() here.

did_mount

did_mount()

init

init()

is_isolated

is_isolated()

update

update() -> None

will_unmount

will_unmount()