Robinson projection

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  Waterman "Butterfly" World Map Projection

  The Waterman "Butterfly" World Map Projection was created by Steve Waterman and published in 1996. It is an octahedral transformation of a globe, reviving the Butterfly Map principle first developed by Bernard J.S. Cahill (1866-1944) in 1909. Whereas Cahill's approach was that of an architect,...
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  Mollweide projection

  The Mollweide projection is a pseudocylindrical map projection generally used for global maps of the world (or sky). Also known as the Babinet projection, homolographic projection, or elliptical projection. As its more explicit name Mollweide equal area projection indicates, it sacrifices fidelity...
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  Goode homolosine projection

  The Goode homolosine projection (or interrupted Goode homolosine projection) is an interrupted, pseudocylindrical, equal-area, composite map projection used for world maps. Its equal-area property makes it useful for raster data representation. The projection is composed of twelve regions that form...
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  Polyconic projection

  A polyconic projection is a conical map projection. The projection stems from "rolling" a cone tangent to the Earth at all parallels of latitude, instead of a single cone in a normal conic projection. Each parallel is a circular arc of true scale. The scale is also true on the central meridian of...
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  Miller cylindrical projection

  The Miller cylindrical projection is a modified Mercator projection, proposed by Osborn Maitland Miller (1897–1979) in 1942. The parallels of latitude are scaled by a factor of 2/5, projected according to Mercator, and then the result is multiplied by 5/4 to retain scale along the equator. Hence:...
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  Sinusoidal projection

  The sinusoidal projection is a pseudocylindrical equal-area map projection, sometimes called the Sanson-Flamsteed or the Mercator equal-area projection. It is defined by: where is the latitude, is the longitude, and is the central meridian. The north-south scale is the same everywhere at the...

• Tobler hyperelliptical projection

  The Tobler hyperelliptical projection is a family of pseudocylindrical projections used for mapping the earth. It is named for Waldo R. Tobler, its inventor. It is an equal-area projection. In the normal aspect, the parallels of latitude are parallel straight lines whose spacing is calculated to...

• Collignon projection

  The Collignon Projection is a pseudocylindrical map projection first known to be published by Édouard Collignon in 1865 and subsequently cited by A. Tissot in 1881. For the smallest choices of the parameters chosen for this projection, the sphere may be mapped either to a single diamond, a pair of...