Flip the World

The function GeoAntipode performs a coordinate inversion of geo structures, like positions and polygons, with respect to the center of the Earth.

Download the world polygon.

Draw its antipodal reflection on a normal map of the world. The antipode of Australia falls in the middle of the Atlantic Ocean, while the antipode of Africa falls in the middle of the Pacific Ocean.

Focus on the antipodal polygon of Antarctica, now using a polar azimuthal projection.