Proj4Crs class

Custom CRS

Inheritance

• Object
• Crs
• BaseCrs
• Proj4Crs

Constructors

Proj4Crs.fromFactory({required String code, required Projection pj4Projection, Transformation? transformation, List<UPoint>? origins, Bounds? bounds, List<double>? scales, List<double>? resolutions})

factory

Properties

code → String

Code of this CRS.

final

hashCode → int

The hash code for this object.

no setter, inherited

infinite → bool

Infinite

final

latBounds → Tuple2<double, double>

Returns a Tuple2<double 1, double 2) where longitude has been wrapped according to the CRS's wrapLng properties, if they are outside the CRS's bounds.

no setter, override

lngBounds → Tuple2<double, double>

Returns a Tuple2<double 1, double 2) where latitude has been wrapped according to the CRS's wrapLat properties, if they are outside the CRS's bounds.

no setter, override

projection → Projection

Projection value of this CRS.

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

scales → List<double?>

Scale list

final

transformation → Transformation

Transformation object of this CRS.

final

transformations → List<Transformation>?

Transformations list

final

Methods

distance(LatLng position, LatLng destination) → double?

Returns the distance between two geographical coordinates.

inherited

getProjectedBounds(double? zoom) → Bounds?

Rescales the bounds to a given zoom value.

override

latlngToPoint(LatLng? position, double? zoom) → UPoint

Converts a point on the sphere surface (with a certain zoom) in a map point.

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

pointToLatLng(UPoint point, double? zoom) → LatLng?

Converts a map point to the sphere coordinate (at a certain zoom).

override

project(LatLng? latlng) → UPoint?

Projects geographical coordinates into coordinates in units accepted for this CRS (e.g. meters for EPSG:3857, for passing it to WMS services).

inherited

scale(double? zoom) → double?

Zoom to Scale function.

override

toString() → String

A string representation of this object.

inherited

unproject(UPoint point) → LatLng?

Given a projected coordinate returns the corresponding LatLng. The inverse of project.

inherited

wrapLatLng(LatLng latlng) → LatLng

Returns a LatLng where lat and lng has been wrapped according to the CRS's wrapLat and wrapLng properties, if they are outside the CRS's bounds.

inherited

wrapLatLngBounds(LatLngBounds bounds) → LatLngBounds

Returns a LatLngBounds with the same size as the given one, ensuring that its center is within the CRS's bounds.

inherited

zoom(double scale) → double

Scale to Zoom function.

override

Operators

operator ==(Object other) → bool

The equality operator.

inherited