Ellipsoid class

A reference ellipsoid with ellipsoidal parameters (a, b and f).

See also Wikipedia about Earth ellipsoid and PROJ documentation about ellipsoids.

Annotations
  • @immutable

Constructors

Ellipsoid({required String id, required String name, required double a, required double b, required double f})
A reference ellipsoid with ellipsoidal parameters (a, b and f).
const

Properties

a → double
The semi-major axis (equatorial radius) of a reference ellipsoid.
final
b → double
The semi-minor axis (polar radius) of a reference ellipsoid.
final
f → double
The flattening of a reference ellipsoid.
final
hashCode → int
The hash code for this object.
no setteroverride
id → String
The id (short name) of a reference ellisoid.
final
name → String
The name (ellipse name) of a reference ellisoid.
final
runtimeType → Type
A representation of the runtime type of the object.
no setterinherited

Methods

noSuchMethod(Invocation invocation) → dynamic
Invoked when a nonexistent method or property is accessed.
inherited
toString() → String
A string representation of this object.
override

Operators

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

Constants

GRS80 → const Ellipsoid
Ellisoidal parameters for the GRS80 (Geodetic Reference System 1980) reference ellipsoid.
WGS84 → const Ellipsoid
Ellisoidal parameters for the WGS84 (World Geodetic System 1984) reference ellipsoid.