Ellipse class

An ellipse defined by its center and two radii.

radiusX is the semi-major or semi-minor axis along the x-axis, radiusY is along the y-axis.

Implemented types

Constructors

Ellipse({required Point center, required double radiusX, required double radiusY})
const
Ellipse.circular({required Point center, required double radius})
Create a circle-like ellipse with equal radii
factory

Properties

area → double
Get area of ellipse
no setteroverride
center → Point
Center point of the ellipse
final
eccentricity → double
Eccentricity of the ellipse (0 = circle, approaching 1 = very elongated)
no setter
focalDistance → double
Distance from center to each focus
no setter
foci → List<Point>
The two foci of the ellipse
no setter
hashCode → int
The hash code for this object.
no setteroverride
isCircle → bool
Whether this ellipse is a circle (equal radii)
no setter
perimeter → double
Get perimeter of ellipse (Ramanujan approximation)
no setteroverride
radiusX → double
Semi-axis length along the x-axis
final
radiusY → double
Semi-axis length along the y-axis
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited
semiMajor → double
The semi-major axis (longer radius)
no setter
semiMinor → double
The semi-minor axis (shorter radius)
no setter

Methods

contains(Point point) → bool
Check if a point is inside this ellipse
noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
pointAt(double angle) → Point
Get a point on the ellipse boundary at the given angle in radians
rotate(double deg) → Ellipse
Rotate the shape by deg degrees
override
scale(double value) → Ellipse
scale the shape by value
override
toString() → String
A string representation of this object.
override
translate({double x = 0, double y = 0}) → Ellipse
translate the shape with x in horizontally and y vertically
override

Operators

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