Two-point equidistant projection
Encyclopedia
The two-point equidistant projection is a map projection
first described by Hans Maurer in 1919. Distances from any point on the map to two control points scale to the geodesic
distances of the same points on the sphere. The projection is commonly used in National Geographic Society
atlases
for maps of Asia
, and it sometimes appears in diagrams of air routes.
Map projection
A map projection is any method of representing the surface of a sphere or other three-dimensional body on a plane. Map projections are necessary for creating maps. All map projections distort the surface in some fashion...
first described by Hans Maurer in 1919. Distances from any point on the map to two control points scale to the geodesic
Geodesic
In mathematics, a geodesic is a generalization of the notion of a "straight line" to "curved spaces". In the presence of a Riemannian metric, geodesics are defined to be the shortest path between points in the space...
distances of the same points on the sphere. The projection is commonly used in National Geographic Society
National Geographic Society
The National Geographic Society , headquartered in Washington, D.C. in the United States, is one of the largest non-profit scientific and educational institutions in the world. Its interests include geography, archaeology and natural science, the promotion of environmental and historical...
atlases
Atlas
An atlas is a collection of maps; it is typically a map of Earth or a region of Earth, but there are atlases of the other planets in the Solar System. Atlases have traditionally been bound into book form, but today many atlases are in multimedia formats...
for maps of Asia
Asia
Asia is the world's largest and most populous continent, located primarily in the eastern and northern hemispheres. It covers 8.7% of the Earth's total surface area and with approximately 3.879 billion people, it hosts 60% of the world's current human population...
, and it sometimes appears in diagrams of air routes.