Eckert VI Projection

$image\EckertVI.png$

World Map

Central Longitude: 0

Projection Characteristics

The Eckert VI projection is a pseudo-cylindrical equal area projection. Scale is constant along any given parallel and accurate along the parallels 46°16' north and south. Shape is also accurate along 46°16' north and south and the central longitude. Direction is distorted along most of the map, with the exception of the local angles at 46°16' north and south and the central longitude. The central longitude is half the length of the equator. The poles are also represented by lines half the distance of the equator. The meridians are semi-ellipses. Eckert VI is designed to produce aesthetically pleasing world maps.

Projection Parameters

Parameter	Description
Name	Specifies the units used in the map.
Scale	Specifies the unit scale of the projected map, relative to meters. For example, a scale of one means one unit in the projected map equals one meter; a scale of two means two units in the projected map equal one meter; etc.
False Easting	Specifies the false easting, or horizontal offset, of the projected coordinates, in meters. False Eastings and False Northings are added to the underlying "projected" coordinates as a way to arbitrarily offset their internal XY coordinates after the projection. Unless you have a reason for using these offset values, do not use them. These values do not affect the latitude/longitude coordinates for the map, only the internal coordinates used to plot the map on the screen. If you use False Easting and False Northing offsets for a map, any subsequent boundaries you append to the map must also use these same offsets if you want the imported boundaries to be drawn in the correct relative position to the existing boundaries.
False Northing	Specifies the false northing, or vertical offset, of the projected coordinates, in meters. See above.
Central Longitude	Specifies the central longitude of the projection in degrees. The Central Longitude value typically should be defined as the longitudinal center of the map you are going to produce.