A geodetic position in the default reference frame:

The geo location of a city:

The current position of the International Space Station, including height and time information:

A position that explicitly refers to the ITRF00 reference frame:

Convert this position to NAD 83 (CORS96) coordinates:

Convert back to ITRF00:

Use positions on a sphere of 100 kilometers of radius:

Convert to a 3D vector:

The vector components are given in meters:

Transform back to a GeoPosition object on the sphere:

Use positions on an ellipsoid of given semiaxes:

Convert to a 3D vector:

Transform back to a GeoPosition object on the ellipsoid:

A position on a geo reference model other than the Earth:

Distance from the Tycho Brahe crater to the South Pole of Mars:

Computations are performed with an ellipsoid of these semiaxis lengths:

GeoPosition is the main object in the Wolfram Language denoting point-like locations on the Earth:

Compute distance between two points:

Compute the initial bearing of a geodesic from p to q:

Draw the geodesic between them and respective geo circles:

Check that the end of the geodesic starting at p is actually the point q:

Geographical locations returned by EntityValue are given as GeoPosition objects:

They can also include height and time information:

Geographical polygons have their coordinates inside a GeoPosition head:

Draw the polygon or its boundary:

Convert a geodetic location to a three-dimensional Cartesian vector with respect to the reference frame of the datum, assuming geodetic height 0:

Convert back to a GeoPosition specification, now with some small residual value of height:

Convert geodetic coordinates to Cartesian coordinates for an ellipsoid of these semiaxis lengths:

Take a point p of geodetic latitude 60°, zero longitude, and geodetic height 0.15:

Convert it to Cartesian coordinates:

Convert back to geodetic coordinates:

Take a point q of the same latitude and longitude, but zero height:

Represent the relation between the coordinates on a vertical cut of the ellipsoid:

The blue line is perpendicular to the tangent at q and forms an angle of 60° with the axis:

The geodetic height of p along the geodetic vertical is the distance between p and q:

Project a geodetic location using various geo projections, using their default parameters:

Convert back to a GeoPosition specification:

The antipode of a GeoPosition object is another GeoPosition object:

GeoPosition[{}] represents an empty array of geo positions:

It contains zero positions:

GeoPosition[] is invalid syntax:

GeoPosition inside Graphics primitives marks coordinates as being in {lat,lon} notation:

Graphics primitives containing GeoPosition coordinates are formed by straight segments in the projected map:

Degree is considered as any other numeric expression:

Use Quantity to denote that angles are given in radians:

From Version 10 of the Wolfram Language, numeric time is interpreted as seconds since 1900, not as years:

Take a list of images with Exif location information:

Extract their respective positions:

Draw the points on a map, using tooltips to show the respective images: