Circle
A circle with a set center and radius.
center Point
The center point of the circle.
radius number
The radius of the circle.
Constructors
Circle (center: any | Point, radius: number)
Creates a circle with a set center and radius.
Parameters
center any | Point
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 Point | number[]
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.
