Coord v0.1.0 Coord.Datum View Source
An object with the data necessary to create a point in a datum.
Most likely you want to use the datum WGS84, which is returned by the function
Coord.Datum.wgs84/0
. Many functions in this library have two versions, one
that takes a datum and one that defaults to WGS84.
If you need a different datum you will need to create your own instance of
Coord.Datum
. See the documentation for Coord.Datum.new
for details.
Concept
A geodetic datum is a system for assigning coordinates to our irregularly shaped world. WGS84 is generally considered the international default datum.
Link to this section Summary
Functions
Create a Datum object by specifying the parameters of the ellipsoid that makes up its surface.
Create a Datum object with data for the WGS84 datum, the latest revision of the international default.
Link to this section Types
Specs
t() :: %Coord.Datum{ellipsoid: Coord.Datum.Ellipsoid.t()}
A struct containing an ellipsoid struct.
Link to this section Functions
Specs
new(Coord.Datum.Ellipsoid.t()) :: t()
Create a Datum object by specifying the parameters of the ellipsoid that makes up its surface.
See Coord.Datum.Ellipsoid
for details on the parameter.
Specs
wgs84() :: t()
Create a Datum object with data for the WGS84 datum, the latest revision of the international default.