Radius class
A radius for either circular or elliptical shapes.
Constructors
- Radius.circular(double radius)
- 
          Constructs a circular radius. x and y will have the same radius value.
            const
- Radius.elliptical(double x, double y)
- 
          Constructs an elliptical radius with the given radii.
            const
Properties
Methods
- 
  noSuchMethod(Invocation invocation) → dynamic 
- 
  Invoked when a nonexistent method or property is accessed.
  inherited
- 
  toString() → String 
- 
  A string representation of this object.
  inherited
Operators
- 
  operator ==(Object other) → bool 
- 
  The equality operator.
  inherited