This pseudo cylindrical equal-area projection is primarily used for thematic maps of the world.
Pseudo cylindrical equal-area projection.
Lines of contact
Many lines; all parallels of latitude in the projection.
The central meridian is a straight line 0.45 times the length of the equator. Meridians are equally spaced curves. Parallels are unequally spaced, straight parallel lines perpendicular to the central meridian. Their spacing decreases gradually as they move away from the equator.
Direction is generally distorted.
Scale is true along the equator. Scale is also constant along any given latitude and is symmetrical around the equator.
Useful only as a world map.
Uses and applications
Thematic world maps. The McBryde–Thomas flat-polar quartic projection is based on this projection.
- False Easting
- False Northing
- Central Meridian
Supported on spheres only.
A geographic coordinate systems pdf file which contains lists of supported gcs and vcs.
A projected coordinate systems pdf file which contains lists of supported pcs.
A geographic transformations pdf file which contains lists of supported geographic and vertical transformations.