ProjectionMixin mixin

Helper for creating projections with common parameters.

Implemented types

• Projection

Mixin applications

• AlbersProjection
• EquirectangularProjection
• MercatorProjection
• OrthographicProjection
• TransverseMercatorProjection

Properties

center ↔ (double, double)

The center of the projection longitude, latitude.

getter/setter pair, override

centerLat → double

The center latitude (for use in subclasses).

no setter

centerLon → double

The center longitude (for use in subclasses).

no setter

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, override

translate ↔ Point

The translation offset.

getter/setter pair, override

Methods

applyTransform(double x, double y) → Point

Applies scale and translation to raw projected coordinates.

copy() → Projection

Creates a copy of this projection.

inherited

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

Inverts screen coordinates to geographic longitude, latitude.

inherited

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.

inherited

removeTransform(double x, double y) → (double, double)

Removes scale and translation from screen coordinates.

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited