Ring class

A ring (annulus) defined by two concentric circles.

The ring is the region between innerRadius and outerRadius centered at center.

Constructors

Ring({required Point center, required double innerRadius, required double outerRadius})
Creates a ring with given center, innerRadius, and outerRadius.
const

Properties

area → double
Area of the ring
no setter
averageRadius → double
Average radius (midpoint between inner and outer)
no setter
center → Point
Center point of the ring
final
hashCode → int
The hash code for this object.
no setteroverride
innerCircumference → double
Inner circumference
no setter
innerRadius → double
Inner radius (hole)
final
outerCircumference → double
Outer circumference
no setter
outerRadius → double
Outer radius (boundary)
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
width → double
Width of the ring (outer - inner)
no setter

Methods

contains(Point point) → bool
Check if a point is inside the ring
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
scale(double factor) → Ring
Scale the ring by factor
toString() → String
A string representation of this object.
override
translate({double x = 0, double y = 0}) → Ring
Translate the ring

Operators

operator ==(Object other) → bool
The equality operator.
override