Find out the antipode of your location:

Find out the antipode of the capital of Spain:

That location is in New Zealand:

The antipode of a geo disk centered at loc is another geo disk centered at the antipode of loc:

Show the antipodal polygon of Brazil:

Find the antipode of a GeoPosition object:

Elevation is left unchanged:

Find the antipode of a GeoPositionXYZ object:

All three coordinates change sign:

Find the antipode of a GeoPositionENU object:

The East and Up components are preserved, but the North component changes sign:

Find the antipode of a GeoGridPosition object:

For general projections, the relation is highly nonlinear:

The antipodal position of a geo Entity location is returned as a GeoPosition object:

Find the antipodes of a GeoPosition array:

Find out the antipode of a geo path:

Take the polygon of South America:

Compute the antipodal polygon:

Draw a map of the antipodal polygon of South America:

Draw the antipode of Antarctica around the North Pole:

The antipode of the antipode of a location is the original location:

If location p is east of location q, then the antipode of p is also east of the antipode of q:

However, if p is north of q, then the antipode of p is south of the antipode of q:

The day and night hemispheres for a given date are antipodal:

The day-night terminator is its own antipode:

The geo hemispheres of two antipodal locations are complementary:

They are related by this simple identity:

Overlay the polygons of the world and their antipodal polygons: