latlng library

Geodesy and Geographical calculations for Dart. Provides LatLong and Mercator projection (EPSG4326).

Classes

Angle
Represents an angle.
Boundary
Earth
Represents Earth planet.
EarthCenteredEarthFixed
Earth-centered, Earth-fixed is a cartesian spatial reference system that represents locations in the vicinity of the Planet (including its surface, interior, atmosphere, and surrounding outer space) as X, Y, and Z measurements from its center of mass.
EarthCenteredInertial
Earth-centered inertial (ECI) coordinate frames have their origins at the center of mass of Planet and are fixed with respect to the stars.
EPSG4326
The Mercator projection is a cylindrical map projection presented by Flemish geographer and cartographer Gerardus Mercator in 1569. It became the standard map projection for navigation because of its unique property of representing any course of constant bearing as a straight segment.
Feature
Features are described in section 4.2 of the specification.
FeatureCollection
A GeoJSON object with the type "FeatureCollection" is a FeatureCollection object.
Geometry
Abstract geometry class.
Julian
Encapsulates a Julian date.
LatLng
Coordinates in Degrees.
LatLngAlt
Coordinates in Degrees.
LineString
LineString Geometry.
LookAngle
Represents a look angle.
MultiLineString
Represents a multi-linestring geometry.
MultiPoint
Represents a multi-point geometry.
MultiPolygon
Represents a multi-polygon geometry.
Planet
Abstract planet for calculations.
Point
Point Geometry.
Point2D
Represents a 2D point on screen-space in pixels.
Polygon
Polygon Geometry.
Projection
TileIndex
Index of tile on tile-map. On zoom level 0 ranges between 0, 1.
Topocentric
Topocentric parameters.

Extensions

DateTimeExtensions on DateTime
A set of extensions on DateTime object.
ProjectionExtensions on Projection

Constants

wgs72 → const Earth
wgs84 → const Earth