Projection class abstract

Base class for geographic projections.

Implementers

• AlbersProjection
• EquirectangularProjection
• MercatorProjection
• OrthographicProjection
• ProjectionMixin
• TransverseMercatorProjection

Constructors

Projection()

Properties

center ↔ (double, double)

The center of the projection longitude, latitude.

getter/setter pair

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scale ↔ double

The scale factor.

getter/setter pair

translate ↔ Point

The translation offset.

getter/setter pair

Methods

copy() → Projection

Creates a copy of this projection.

invert(double x, double y) → (double, double)

Inverts screen coordinates to geographic longitude, latitude.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

project(double longitude, double latitude) → Point

Projects a geographic coordinate longitude, latitude to screen coordinates.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited