Aitoff

The Aitoff projection is a modified azimuthal projection that is neither conformal nor equal area. It was developed by David Aitoff (or Altow) in 1889. The central meridian is a straight line half the length of the Equator. Other meridians are equally spaced along the Equator and concave toward the central meridian. The Equator is straight. Other parallels are equally spaced along the central meridian and concave toward the nearest pole. The poles are represented by points. This projection is symmetrical about the Equator and the central meridian. Scale is true along the Equator and the central meridian. This projection is supported on spheres only.  

The "Aitoff" projection uses the following parameters:

  • Longitude of Natural Origin

  • False Easting

  • False Northing

Note: Only a spherical form of this projection is used. The semi-major axis of the ellipsoid will be used as the radius of the sphere.