Miller cylindrical projection

The Miller cylindrical projection is a modified Mercator projection, proposed by Osborn Maitland Miller in 1942. The latitude is scaled by a factor of , projected according to Mercator, and then the result is multiplied by to retain scale along the equator. Hence:

or inversely,

where λ is the longitude from the central meridian of the projection, and φ is the latitude. Meridians are thus about 0.733 the length of the equator.

In GIS applications, this projection is known as: "ESRI:54003" and "+proj=mill".

Compact Miller projection is similar to Miller but spacing between parallels stops growing after 55 degrees.

In GIS applications, this projection is known as: "ESRI:54080" and "+proj=comill".

See also

• List of map projections

References

External links

• Math formulae information
• Historical information
• Miller projection in proj4