Width and height information on a two-dimensional map projection.
- iOS 4.0+
- macOS 10.9+
- tvOS 9.2+
- watchOS 2.0+
If you project the curved surface of the globe onto a flat surface, what you get is a two-dimensional version of a map where longitude lines appear to be parallel. Such maps are often used to show the entire surface of the globe all at once. An
MKMap data structure represents a horizontal and vertical distance as measured on this two-dimensional map.