Circle

A circle with a set center and radius.

Name	Type	Default	Description
center	Point		The center point of the circle.
radius	number		The radius of the circle.

Constructors

Circle

(center: any, radius: number)

Creates a circle with a set center and radius.

Parameters

center

any

The center point of the circle.

radius

number

The radius of the circle.

Methods

addObserver
Adds an observer to be notified for changes.
Parameters observer GeometryObserver The observer to add.
Returns Circle The current Arc instance.

bbox
Returns the bounding box of this circle after applying the specified transformation matrix.
Parameters matrix? Matrix The transformation matrix to apply.
Returns Rect The bounding box after applying the transformation matrix.

clone
Creates a new instance with the same center and radius.
Returns Circle A new Circle instance with the same center and radius.

equals
Compares this circle with another instance.
Parameters other Circle The circle to compare with.
Returns boolean true if the point coordinates match. Otherwise, returns false.

getCenter
Gets the center location of the circle.
Returns Point The location of the circle center.

getRadius
Gets the radius of the circle.
Returns number The radius of the circle.

observers
Returns the list of observers.
Returns GeometryObserver[] The current observers.

pointAt
Gets the location of a point on the circumference of the circle at a given angle.
Parameters angle number The angle in decimal degrees. Measured in a clockwise direction with 0 (zero) pointing "right". Negative values or values greater than 360 are normalized.
Returns Point The point on the circumference of the circle.

removeObserver
Stops notifying the specified observer for changes.
Parameters observer GeometryObserver The observer to remove.
Returns Circle The current Arc instance.

resume
Resumes the notification to all observers for changes.
Returns Circle The current Arc instance.

setCenter
Sets the location of the circle center.
Parameters center number[] | Point The new center Point or an equivalent [x, y] array.
Returns Point The location of the circle center.

setRadius
Sets the radius of the circle.
Parameters radius number The new radius of the circle.
Returns Circle The current Circle instance.

suspend
Suspends the change notifications to all observers.
Returns Circle The current Arc instance.