The Hammer–Aitoff projection is a modification of the Lambert azimuthal equal area projection.
Modified azimuthal. The central meridian is a straight line half as long as the equator. The other meridians are complex curves, concave toward the central meridian and unequally spaced along the equator. The equator is a straight line; all other parallels are complex curves, concave toward the nearest pole and unequally spaced along the central meridian.
Point of tangency
Central meridian at the equator.
The equator and central meridian are the only straight lines.
Distortion increases away from the origin.
Local angles are true only at the center.
Scale decreases along the equator and central meridian as distance from the origin increases.
Useful only as a world map.
Uses and applications
Thematic maps of the whole world.
- False Easting
- False Northing
- Central Meridian
- Longitude of Central Meridian